ID Workflow Result Correct Bug Created Started Finished Revision
06cb3d1a repro-c Reproduced: ✅ WARNING in qdisc_tree_reduce_backlog (2) 2026/08/15 11:48 2026/08/15 16:59 2026/08/15 19:48 746171ee
Agent: prod-syz-agent-1
External Bug ID: ---

Inputs:
BaseBranch master
BaseCommit RC
BaseRepository git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
BugTitle WARNING in qdisc_tree_reduce_backlog
CrashLogID 5922642751651840
CrashReportID 4842784894222336
KernelCommit 1229e2e57a5c2980ccd457b9b53ea0eed5a22ab3
KernelConfig
Show (280122 bytes)
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 syzkaller Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="gcc (Debian 14.2.0-19) 14.2.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=140200
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=24400
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=24400
CONFIG_LLD_VERSION=0
CONFIG_RUSTC_VERSION=109600
CONFIG_RUST_IS_AVAILABLE=y
CONFIG_RUSTC_LLVM_VERSION=220102
CONFIG_RUSTC_LLVM_MAJOR_VERSION=22
CONFIG_CC_CAN_LINK=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT=y
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_ASSUME=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_LD_CAN_USE_KEEP_IN_OVERLAY=y
CONFIG_RUSTC_HAS_SPAN_FILE=y
CONFIG_RUSTC_HAS_UNNECESSARY_TRANSMUTES=y
CONFIG_RUSTC_HAS_FILE_WITH_NUL=y
CONFIG_RUSTC_HAS_FILE_AS_C_STR=y
CONFIG_PAHOLE_VERSION=130
CONFIG_CONSTRUCTORS=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_ZSTD=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
# CONFIG_KERNEL_ZSTD is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_WATCH_QUEUE=y
CONFIG_CROSS_MEMORY_ATTACH=y
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_ARCH_WANTS_CLOCKSOURCE_READ_INLINE=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST_IDLE=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CLOCKEVENTS_COUPLED=y
CONFIG_GENERIC_CLOCKEVENTS_COUPLED_INLINE=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_HRTIMER_REARM_DEFERRED=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_CONTEXT_TRACKING=y
CONFIG_CONTEXT_TRACKING_IDLE=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_CONTEXT_TRACKING_USER=y
# CONFIG_CONTEXT_TRACKING_USER_FORCE is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_POSIX_AUX_CLOCKS=y
# end of Timers subsystem

CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y

#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
# CONFIG_BPF_JIT_ALWAYS_ON is not set
CONFIG_BPF_JIT_DEFAULT_ON=y
# CONFIG_BPF_UNPRIV_DEFAULT_OFF is not set
CONFIG_BPF_PRELOAD=y
CONFIG_BPF_PRELOAD_UMD=y
CONFIG_BPF_LSM=y
# end of BPF subsystem

CONFIG_PREEMPT_BUILD=y
CONFIG_ARCH_HAS_PREEMPT_LAZY=y
CONFIG_PREEMPT=y
# CONFIG_PREEMPT_LAZY is not set
# CONFIG_PREEMPT_RT is not set
CONFIG_PREEMPT_COUNT=y
CONFIG_PREEMPTION=y
CONFIG_PREEMPT_DYNAMIC=y
CONFIG_SCHED_CORE=y

#
# CPU/Task time and stats accounting
#
CONFIG_VIRT_CPU_ACCOUNTING=y
# CONFIG_TICK_CPU_ACCOUNTING is not set
CONFIG_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_SCHED_AVG_IRQ=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_PSI=y
# CONFIG_PSI_DEFAULT_DISABLED is not set
# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_PREEMPT_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_NEED_TASKS_RCU=y
CONFIG_TASKS_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
# end of RCU Subsystem

CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=18
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
# CONFIG_PRINTK_INDEX is not set
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y

#
# Scheduler features
#
# CONFIG_UCLAMP_TASK is not set
# CONFIG_SCHED_PROXY_EXEC is not set
# end of Scheduler features

CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_CC_HAS_INT128=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_CC_MS_EXTENSIONS="-fms-extensions"
CONFIG_GCC10_NO_ARRAY_BOUNDS=y
CONFIG_CC_NO_ARRAY_BOUNDS=y
CONFIG_GCC_NO_STRINGOP_OVERFLOW=y
CONFIG_CC_NO_STRINGOP_OVERFLOW=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_NUMA_BALANCING=y
CONFIG_SCHED_CACHE=y
CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y
CONFIG_SLAB_OBJ_EXT=y
CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
# CONFIG_CGROUP_FAVOR_DYNMODS is not set
CONFIG_MEMCG=y
CONFIG_MEMCG_V1=y
CONFIG_BLK_CGROUP=y
CONFIG_CGROUP_WRITEBACK=y
CONFIG_CGROUP_SCHED=y
CONFIG_GROUP_SCHED_WEIGHT=y
CONFIG_GROUP_SCHED_BANDWIDTH=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
# CONFIG_RT_GROUP_SCHED is not set
CONFIG_SCHED_MM_CID=y
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
# CONFIG_CGROUP_DMEM is not set
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
# CONFIG_CPUSETS_V1 is not set
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
# CONFIG_CGROUP_BPF is not set
CONFIG_CGROUP_MISC=y
CONFIG_CGROUP_DEBUG=y
CONFIG_SOCK_CGROUP_DATA=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_TIME_NS=y
CONFIG_TIME_NS_VDSO=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_CHECKPOINT_RESTORE=y
# CONFIG_SCHED_AUTOGROUP is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_RD_ZSTD=y
# CONFIG_BOOT_CONFIG is not set
CONFIG_CMDLINE_LOG_WRAP_IDEAL_LEN=1021
CONFIG_INITRAMFS_PRESERVE_MTIME=y
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_LD_ORPHAN_WARN_LEVEL="warn"
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_EXPERT=y
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
# CONFIG_BASE_SMALL is not set
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_FUTEX_PRIVATE_HASH=y
CONFIG_FUTEX_MPOL=y
CONFIG_HAVE_FUTEX_ROBUST_UNLOCK=y
CONFIG_FUTEX_ROBUST_UNLOCK=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_IO_URING_MOCK_FILE=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KCMP=y
CONFIG_RSEQ=y
CONFIG_RSEQ_SLICE_EXTENSION=y
# CONFIG_RSEQ_STATS is not set
# CONFIG_RSEQ_DEBUG_DEFAULT_ENABLE is not set
CONFIG_CACHESTAT_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_SELFTEST is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_GUEST_PERF_EVENTS=y
CONFIG_PERF_GUEST_MEDIATED_PMU=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
# end of Kernel Performance Events And Counters

CONFIG_SYSTEM_DATA_VERIFICATION=y
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y

#
# Kexec and crash features
#
CONFIG_CRASH_RESERVE=y
CONFIG_VMCORE_INFO=y
CONFIG_KEXEC_CORE=y
CONFIG_KEXEC=y
# CONFIG_KEXEC_FILE is not set
# CONFIG_KEXEC_JUMP is not set
CONFIG_CRASH_DUMP=y
CONFIG_CRASH_HOTPLUG=y
CONFIG_CRASH_MAX_MEMORY_RANGES=8192
# end of Kexec and crash features

#
# Live Update and Kexec HandOver
#
# CONFIG_KEXEC_HANDOVER is not set
# end of Live Update and Kexec HandOver
# end of General setup

CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_CSUM=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_AUDIT_ARCH=y
CONFIG_KASAN_SHADOW_OFFSET=0xdffffc0000000000
CONFIG_HAVE_INTEL_TXT=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=5

#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_X86_X2APIC=y
# CONFIG_X86_POSTED_MSI is not set
CONFIG_X86_MPPARSE=y
# CONFIG_X86_CPU_RESCTRL is not set
CONFIG_X86_FRED=y
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_NUMACHIP is not set
# CONFIG_X86_VSMP is not set
# CONFIG_X86_INTEL_MID is not set
# CONFIG_X86_GOLDFISH is not set
# CONFIG_X86_INTEL_LPSS is not set
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=y
# CONFIG_IOSF_MBI_DEBUG is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_X86_HV_CALLBACK_VECTOR=y
# CONFIG_XEN is not set
CONFIG_KVM_GUEST=y
CONFIG_ARCH_CPUIDLE_HALTPOLL=y
CONFIG_PVH=y
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_PARAVIRT_CLOCK=y
# CONFIG_JAILHOUSE_GUEST is not set
# CONFIG_ACRN_GUEST is not set
# CONFIG_BHYVE_GUEST is not set
CONFIG_CC_HAS_MARCH_NATIVE=y
# CONFIG_X86_NATIVE_CPU is not set
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_HAVE_PAE=y
CONFIG_X86_CX8=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_IA32_FEAT_CTL=y
CONFIG_X86_VMX_FEATURE_NAMES=y
CONFIG_PROCESSOR_SELECT=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
# CONFIG_CPU_SUP_HYGON is not set
# CONFIG_CPU_SUP_CENTAUR is not set
# CONFIG_CPU_SUP_ZHAOXIN is not set
CONFIG_BROADCAST_TLB_FLUSH=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_GART_IOMMU is not set
CONFIG_BOOT_VESA_SUPPORT=y
# CONFIG_MAXSMP is not set
CONFIG_NR_CPUS_RANGE_BEGIN=2
CONFIG_NR_CPUS_RANGE_END=512
CONFIG_NR_CPUS_DEFAULT=64
CONFIG_NR_CPUS=8
CONFIG_SCHED_MC_PRIO=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_ACPI_MADT_WAKEUP=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
# CONFIG_X86_MCELOG_LEGACY is not set
CONFIG_X86_MCE_INTEL=y
CONFIG_X86_MCE_AMD=y
CONFIG_X86_MCE_THRESHOLD=y
# CONFIG_X86_MCE_INJECT is not set

#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=y
CONFIG_PERF_EVENTS_INTEL_RAPL=y
CONFIG_PERF_EVENTS_INTEL_CSTATE=y
# CONFIG_PERF_EVENTS_AMD_POWER is not set
CONFIG_PERF_EVENTS_AMD_UNCORE=y
# CONFIG_PERF_EVENTS_AMD_BRS is not set
# end of Performance monitoring

CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y
CONFIG_X86_VSYSCALL_EMULATION=y
CONFIG_X86_IOPL_IOPERM=y
CONFIG_MICROCODE=y
# CONFIG_MICROCODE_LATE_LOADING is not set
# CONFIG_MICROCODE_DBG is not set
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_X86_DIRECT_GBPAGES=y
# CONFIG_X86_CPA_STATISTICS is not set
CONFIG_NUMA=y
CONFIG_AMD_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SHIFT=6
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
# CONFIG_ARCH_MEMORY_PROBE is not set
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
# CONFIG_X86_PMEM_LEGACY is not set
# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
CONFIG_MTRR=y
# CONFIG_MTRR_SANITIZER is not set
CONFIG_X86_PAT=y
CONFIG_X86_UMIP=y
CONFIG_CC_HAS_IBT=y
CONFIG_X86_CET=y
CONFIG_X86_KERNEL_IBT=y
CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS=y
CONFIG_ARCH_PKEY_BITS=4
# CONFIG_X86_INTEL_TSX_MODE_OFF is not set
CONFIG_X86_INTEL_TSX_MODE_ON=y
# CONFIG_X86_INTEL_TSX_MODE_AUTO is not set
CONFIG_X86_SGX=y
CONFIG_X86_USER_SHADOW_STACK=y
# CONFIG_INTEL_TDX_HOST is not set
# CONFIG_EFI is not set
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
CONFIG_SCHED_HRTICK=y
CONFIG_ARCH_SUPPORTS_KEXEC=y
CONFIG_ARCH_SUPPORTS_KEXEC_FILE=y
CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY=y
CONFIG_ARCH_SUPPORTS_KEXEC_SIG=y
CONFIG_ARCH_SUPPORTS_KEXEC_SIG_FORCE=y
CONFIG_ARCH_SUPPORTS_KEXEC_BZIMAGE_VERIFY_SIG=y
CONFIG_ARCH_SUPPORTS_KEXEC_JUMP=y
CONFIG_ARCH_SUPPORTS_KEXEC_HANDOVER=y
CONFIG_ARCH_SUPPORTS_CRASH_DUMP=y
CONFIG_ARCH_DEFAULT_CRASH_DUMP=y
CONFIG_ARCH_SUPPORTS_CRASH_HOTPLUG=y
CONFIG_ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION=y
CONFIG_PHYSICAL_START=0x1000000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_HOTPLUG_CPU=y
# CONFIG_COMPAT_VDSO is not set
CONFIG_LEGACY_VSYSCALL_XONLY=y
# CONFIG_LEGACY_VSYSCALL_NONE is not set
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="earlyprintk=serial net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 binder.debug_mask=0 rcupdate.rcu_expedited=1 rcupdate.rcu_cpu_stall_cputime=1 no_hash_pointers page_owner=on sysctl.vm.nr_hugepages=4 sysctl.vm.nr_overcommit_hugepages=4 secretmem.enable=1 sysctl.max_rcu_stall_to_panic=1 msr.allow_writes=off coredump_filter=0xffff root=/dev/sda console=ttyS0 vsyscall=native numa=fake=2 kvm-intel.nested=1 spec_store_bypass_disable=prctl nopcid vivid.n_devs=64 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=32 rose.rose_ndevs=32 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=32 max_loop=32 nbds_max=32 comedi.comedi_num_legacy_minors=4 panic_on_warn=1"
# CONFIG_CMDLINE_OVERRIDE is not set
CONFIG_MODIFY_LDT_SYSCALL=y
# CONFIG_STRICT_SIGALTSTACK_SIZE is not set
CONFIG_HAVE_LIVEPATCH=y
CONFIG_HAVE_KLP_BUILD=y
CONFIG_X86_BUS_LOCK_DETECT=y
# end of Processor type and features

CONFIG_CC_HAS_NAMED_AS=y
CONFIG_CC_HAS_NAMED_AS_FIXED_SANITIZERS=y
CONFIG_USE_X86_SEG_SUPPORT=y
CONFIG_CC_HAS_SLS=y
CONFIG_CC_HAS_RETURN_THUNK=y
CONFIG_CC_HAS_ENTRY_PADDING=y
CONFIG_FUNCTION_PADDING_CFI=11
CONFIG_FUNCTION_PADDING_BYTES=16
CONFIG_CALL_PADDING=y
CONFIG_HAVE_CALL_THUNKS=y
CONFIG_CALL_THUNKS=y
CONFIG_CPU_MITIGATIONS=y
CONFIG_MITIGATION_PAGE_TABLE_ISOLATION=y
CONFIG_MITIGATION_RETPOLINE=y
CONFIG_MITIGATION_RETHUNK=y
CONFIG_MITIGATION_UNRET_ENTRY=y
CONFIG_MITIGATION_CALL_DEPTH_TRACKING=y
# CONFIG_CALL_THUNKS_DEBUG is not set
CONFIG_MITIGATION_IBPB_ENTRY=y
CONFIG_MITIGATION_IBRS_ENTRY=y
CONFIG_MITIGATION_SRSO=y
# CONFIG_MITIGATION_SLS is not set
CONFIG_MITIGATION_GDS=y
CONFIG_MITIGATION_RFDS=y
CONFIG_MITIGATION_SPECTRE_BHI=y
CONFIG_MITIGATION_MDS=y
CONFIG_MITIGATION_TAA=y
CONFIG_MITIGATION_MMIO_STALE_DATA=y
CONFIG_MITIGATION_L1TF=y
CONFIG_MITIGATION_RETBLEED=y
CONFIG_MITIGATION_SPECTRE_V1=y
CONFIG_MITIGATION_SPECTRE_V2=y
CONFIG_MITIGATION_SRBDS=y
CONFIG_MITIGATION_SSB=y
CONFIG_MITIGATION_ITS=y
CONFIG_MITIGATION_TSA=y
# CONFIG_MITIGATION_VMSCAPE is not set
CONFIG_ARCH_HAS_ADD_PAGES=y

#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_SUSPEND_SKIP_SYNC is not set
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_HIBERNATION_SNAPSHOT_DEV=y
CONFIG_HIBERNATION_COMP_LZO=y
# CONFIG_HIBERNATION_COMP_LZ4 is not set
CONFIG_HIBERNATION_DEF_COMP="lzo"
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_USERSPACE_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
# CONFIG_PM_QOS_CPU_SYSTEM_WAKEUP is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
# CONFIG_PM_ADVANCED_DEBUG is not set
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_DPM_WATCHDOG is not set
CONFIG_PM_TRACE=y
CONFIG_PM_TRACE_RTC=y
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
# CONFIG_ENERGY_MODEL is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
CONFIG_ACPI_THERMAL_LIB=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SPCR_TABLE=y
# CONFIG_ACPI_FPDT is not set
CONFIG_ACPI_LPIT=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
CONFIG_ACPI_EC=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=y
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_TAD is not set
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_CPPC_LIB=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_PLATFORM_PROFILE=y
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_DEBUG=y
# CONFIG_ACPI_PCI_SLOT is not set
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_HOTPLUG_MEMORY is not set
CONFIG_ACPI_HOTPLUG_IOAPIC=y
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
CONFIG_ACPI_NHLT=y
CONFIG_ACPI_NFIT=y
# CONFIG_NFIT_SECURITY_DEBUG is not set
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_HMAT is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
# CONFIG_ACPI_APEI is not set
# CONFIG_ACPI_DPTF is not set
# CONFIG_ACPI_EXTLOG is not set
# CONFIG_ACPI_CONFIGFS is not set
# CONFIG_ACPI_PFRUT is not set
CONFIG_ACPI_PCC=y
# CONFIG_ACPI_FFH is not set
CONFIG_ACPI_MRRM=y
CONFIG_PMIC_OPREGION=y
CONFIG_BXT_WC_PMIC_OPREGION=y
# CONFIG_CHT_WC_PMIC_OPREGION is not set
CONFIG_X86_PM_TIMER=y

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_GOV_COMMON=y
# CONFIG_CPU_FREQ_STAT is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y

#
# CPU frequency scaling drivers
#
# CONFIG_CPUFREQ_DT is not set
# CONFIG_CPUFREQ_DT_PLATDEV is not set
CONFIG_X86_INTEL_PSTATE=y
# CONFIG_X86_PCC_CPUFREQ is not set
CONFIG_X86_AMD_PSTATE=y
CONFIG_X86_AMD_PSTATE_DEFAULT_MODE=3
# CONFIG_X86_AMD_PSTATE_UT is not set
CONFIG_X86_ACPI_CPUFREQ=y
CONFIG_X86_ACPI_CPUFREQ_CPB=y
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_P4_CLOCKMOD is not set

#
# shared options
#
CONFIG_CPUFREQ_ARCH_CUR_FREQ=y
# end of CPU Frequency scaling

#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_GOV_LADDER is not set
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_CPU_IDLE_GOV_TEO is not set
CONFIG_CPU_IDLE_GOV_HALTPOLL=y
CONFIG_HALTPOLL_CPUIDLE=y
# end of CPU Idle

CONFIG_INTEL_IDLE=y
# end of Power management and ACPI options

#
# Bus options (PCI etc.)
#
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_MMCONF_FAM10H=y
CONFIG_ISA_BUS=y
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
CONFIG_AMD_NODE=y
# end of Bus options (PCI etc.)

#
# Binary Emulations
#
CONFIG_IA32_EMULATION=y
# CONFIG_IA32_EMULATION_DEFAULT_DISABLED is not set
CONFIG_X86_X32_ABI=y
CONFIG_COMPAT_32=y
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
# end of Binary Emulations

CONFIG_KVM_COMMON=y
CONFIG_HAVE_KVM_PFNCACHE=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_DIRTY_RING=y
CONFIG_HAVE_KVM_DIRTY_RING_TSO=y
CONFIG_HAVE_KVM_DIRTY_RING_ACQ_REL=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_READONLY_MEM=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_KVM_GENERIC_PRE_FAULT_MEMORY=y
CONFIG_KVM_COMPAT=y
CONFIG_HAVE_KVM_IRQ_BYPASS=y
CONFIG_HAVE_KVM_NO_POLL=y
CONFIG_VIRT_XFER_TO_GUEST_WORK=y
CONFIG_HAVE_KVM_PM_NOTIFIER=y
CONFIG_KVM_GENERIC_HARDWARE_ENABLING=y
CONFIG_KVM_ELIDE_TLB_FLUSH_IF_YOUNG=y
CONFIG_KVM_MMU_LOCKLESS_AGING=y
CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES=y
CONFIG_KVM_GUEST_MEMFD=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM_X86=y
CONFIG_KVM=y
CONFIG_KVM_SW_PROTECTED_VM=y
CONFIG_KVM_INTEL=y
# CONFIG_KVM_INTEL_PROVE_VE is not set
CONFIG_X86_SGX_KVM=y
CONFIG_KVM_AMD=y
CONFIG_KVM_IOAPIC=y
CONFIG_KVM_SMM=y
CONFIG_KVM_HYPERV=y
CONFIG_KVM_XEN=y
CONFIG_KVM_PROVE_MMU=y
CONFIG_KVM_MAX_NR_VCPUS=1024
CONFIG_X86_REQUIRED_FEATURE_ALWAYS=y
CONFIG_X86_REQUIRED_FEATURE_NOPL=y
CONFIG_X86_REQUIRED_FEATURE_CX8=y
CONFIG_X86_REQUIRED_FEATURE_CMOV=y
CONFIG_X86_REQUIRED_FEATURE_CPUID=y
CONFIG_X86_REQUIRED_FEATURE_FPU=y
CONFIG_X86_REQUIRED_FEATURE_PAE=y
CONFIG_X86_REQUIRED_FEATURE_PSE=y
CONFIG_X86_REQUIRED_FEATURE_PGE=y
CONFIG_X86_REQUIRED_FEATURE_MSR=y
CONFIG_X86_REQUIRED_FEATURE_FXSR=y
CONFIG_X86_REQUIRED_FEATURE_XMM=y
CONFIG_X86_REQUIRED_FEATURE_XMM2=y
CONFIG_X86_REQUIRED_FEATURE_LM=y
CONFIG_X86_DISABLED_FEATURE_VME=y
CONFIG_X86_DISABLED_FEATURE_K6_MTRR=y
CONFIG_X86_DISABLED_FEATURE_CYRIX_ARR=y
CONFIG_X86_DISABLED_FEATURE_CENTAUR_MCR=y
CONFIG_X86_DISABLED_FEATURE_LAM=y
CONFIG_X86_DISABLED_FEATURE_XENPV=y
CONFIG_X86_DISABLED_FEATURE_TDX_GUEST=y
CONFIG_X86_DISABLED_FEATURE_SEV_SNP=y
CONFIG_AS_WRUSS=y
CONFIG_ARCH_CONFIGURES_CPU_MITIGATIONS=y

#
# General architecture-dependent options
#
CONFIG_HOTPLUG_SMT=y
CONFIG_ARCH_SUPPORTS_SCHED_SMT=y
CONFIG_ARCH_SUPPORTS_SCHED_CLUSTER=y
CONFIG_ARCH_SUPPORTS_SCHED_MC=y
CONFIG_SCHED_SMT=y
CONFIG_SCHED_CLUSTER=y
CONFIG_SCHED_MC=y
CONFIG_HOTPLUG_CORE_SYNC=y
CONFIG_HOTPLUG_CORE_SYNC_DEAD=y
CONFIG_HOTPLUG_CORE_SYNC_FULL=y
CONFIG_HOTPLUG_SPLIT_STARTUP=y
CONFIG_HOTPLUG_PARALLEL=y
CONFIG_GENERIC_IRQ_ENTRY=y
CONFIG_GENERIC_SYSCALL=y
CONFIG_GENERIC_ENTRY=y
# CONFIG_KPROBES is not set
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_STATIC_CALL_SELFTEST is not set
CONFIG_UPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
CONFIG_ARCH_HAS_CPU_FINALIZE_INIT=y
CONFIG_ARCH_HAS_CPU_PASID=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_ARCH_WANTS_NO_INSTR=y
CONFIG_ARCH_MEMORY_ORDER_TSO=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_RUST=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_UNWIND_USER=y
CONFIG_HAVE_UNWIND_USER_FP=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_MMU_GATHER_TABLE_FREE=y
CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
CONFIG_MMU_GATHER_MERGE_VMAS=y
CONFIG_ARCH_WANT_IRQS_OFF_ACTIVATE_MM=y
CONFIG_MMU_LAZY_TLB_REFCOUNT=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_ARCH_HAVE_EXTRA_ELF_NOTES=y
CONFIG_ARCH_HAS_NMI_SAFE_THIS_CPU_OPS=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP=y
CONFIG_SECCOMP_FILTER=y
# CONFIG_SECCOMP_CACHE_DEBUG is not set
CONFIG_HAVE_ARCH_KSTACK_ERASE=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
CONFIG_LTO_NONE=y
CONFIG_ARCH_SUPPORTS_CFI=y
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_CONTEXT_TRACKING_USER=y
CONFIG_HAVE_CONTEXT_TRACKING_USER_OFFSTACK=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_PV_STEAL_CLOCK_GEN=y
CONFIG_HAVE_MOVE_PUD=y
CONFIG_HAVE_MOVE_PMD=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_HUGE_VMALLOC=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_PMD_MKWRITE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_ARCH_HAS_EXECMEM_ROX=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES=y
CONFIG_HAVE_PAGE_SIZE_4KB=y
CONFIG_PAGE_SIZE_4KB=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_PAGE_SHIFT=12
CONFIG_HAVE_OBJTOOL=y
CONFIG_HAVE_JUMP_LABEL_HACK=y
CONFIG_HAVE_NOINSTR_HACK=y
CONFIG_HAVE_NOINSTR_VALIDATION=y
CONFIG_HAVE_UACCESS_VALIDATION=y
CONFIG_HAVE_STACK_VALIDATION=y
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_ARCH_SUPPORTS_RT=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
CONFIG_RANDOMIZE_KSTACK_OFFSET=y
# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
# CONFIG_LOCK_EVENT_COUNTS is not set
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_HAVE_STATIC_CALL=y
CONFIG_HAVE_STATIC_CALL_INLINE=y
CONFIG_HAVE_PREEMPT_DYNAMIC=y
CONFIG_HAVE_PREEMPT_DYNAMIC_CALL=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_PAGE_TABLE_CHECK=y
CONFIG_ARCH_HAS_ELFCORE_COMPAT=y
CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y
CONFIG_DYNAMIC_SIGFRAME=y
CONFIG_HAVE_ARCH_NODE_DEV_GROUP=y
CONFIG_ARCH_HAS_HW_PTE_YOUNG=y
CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG=y
CONFIG_ARCH_HAS_KERNEL_FPU_SUPPORT=y
CONFIG_HAVE_GENERIC_TIF_BITS=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_FUNCTION_ALIGNMENT_4B=y
CONFIG_FUNCTION_ALIGNMENT_16B=y
CONFIG_FUNCTION_ALIGNMENT=16
CONFIG_CC_HAS_MIN_FUNCTION_ALIGNMENT=y
CONFIG_CC_HAS_SANE_FUNCTION_ALIGNMENT=y
CONFIG_ARCH_HAS_CPU_ATTACK_VECTORS=y
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_MODULE_SIG_FORMAT=y
CONFIG_MODULES=y
# CONFIG_MODULE_DEBUG is not set
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODULE_UNLOAD_TAINT_TRACKING is not set
CONFIG_MODVERSIONS=y
# CONFIG_GENKSYMS is not set
CONFIG_GENDWARFKSYMS=y
CONFIG_ASM_MODVERSIONS=y
# CONFIG_EXTENDED_MODVERSIONS is not set
# CONFIG_BASIC_MODVERSIONS is not set
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
# CONFIG_MODULE_SIG_ALL is not set
CONFIG_MODULE_SIG_SHA256=y
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
# CONFIG_MODULE_SIG_SHA3_256 is not set
# CONFIG_MODULE_SIG_SHA3_384 is not set
# CONFIG_MODULE_SIG_SHA3_512 is not set
CONFIG_MODULE_SIG_HASH="sha256"
# CONFIG_MODULE_COMPRESS is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
# CONFIG_TRIM_UNUSED_KSYMS is not set
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLOCK_LEGACY_AUTOLOAD=y
CONFIG_BLK_RQ_ALLOC_TIME=y
CONFIG_BLK_CGROUP_RWSTAT=y
CONFIG_BLK_CGROUP_PUNT_BIO=y
CONFIG_BLK_DEV_BSG_COMMON=y
CONFIG_BLK_ICQ=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
# CONFIG_BLK_DEV_WRITE_MOUNTED is not set
CONFIG_BLK_DEV_ZONED=y
CONFIG_BLK_DEV_THROTTLING=y
CONFIG_BLK_WBT=y
CONFIG_BLK_WBT_MQ=y
CONFIG_BLK_CGROUP_IOLATENCY=y
# CONFIG_BLK_CGROUP_FC_APPID is not set
CONFIG_BLK_CGROUP_IOCOST=y
CONFIG_BLK_CGROUP_IOPRIO=y
CONFIG_BLK_DEBUG_FS=y
# CONFIG_BLK_SED_OPAL is not set
CONFIG_BLK_INLINE_ENCRYPTION=y
CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK=y

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
CONFIG_ACORN_PARTITION=y
CONFIG_ACORN_PARTITION_CUMANA=y
CONFIG_ACORN_PARTITION_EESOX=y
CONFIG_ACORN_PARTITION_ICS=y
CONFIG_ACORN_PARTITION_ADFS=y
CONFIG_ACORN_PARTITION_POWERTEC=y
CONFIG_ACORN_PARTITION_RISCIX=y
CONFIG_AIX_PARTITION=y
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
CONFIG_ATARI_PARTITION=y
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_LDM_PARTITION=y
# CONFIG_LDM_DEBUG is not set
CONFIG_SGI_PARTITION=y
CONFIG_ULTRIX_PARTITION=y
CONFIG_SUN_PARTITION=y
CONFIG_KARMA_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_SYSV68_PARTITION=y
CONFIG_CMDLINE_PARTITION=y
# CONFIG_OF_PARTITION is not set
# end of Partition Types

CONFIG_BLK_PM=y
CONFIG_BLOCK_HOLDER_DEPRECATED=y
CONFIG_BLK_MQ_STACKING=y
# CONFIG_BLK_ERROR_INJECTION is not set

#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y
CONFIG_BFQ_CGROUP_DEBUG=y
# end of IO Schedulers

CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#
CONFIG_SWAP=y
CONFIG_ZSWAP=y
CONFIG_ZSWAP_DEFAULT_ON=y
CONFIG_ZSWAP_SHRINKER_DEFAULT_ON=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_DEFLATE is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZO is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT_842=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4HC is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT="842"
CONFIG_ZSMALLOC=y

#
# Zsmalloc allocator options
#

#
# Zsmalloc is a common backend allocator for zswap & zram
#
# CONFIG_ZSMALLOC_STAT is not set
CONFIG_ZSMALLOC_CHAIN_SIZE=8
# end of Zsmalloc allocator options

#
# Slab allocator options
#
CONFIG_SLUB=y
CONFIG_KVFREE_RCU_BATCHED=y
# CONFIG_SLUB_TINY is not set
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SLAB_BUCKETS is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_KMALLOC_PARTITION_CACHES is not set
# end of Slab allocator options

# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_SPARSEMEM_VMEMMAP_PREINIT=y
CONFIG_ARCH_WANT_OPTIMIZE_DAX_VMEMMAP=y
CONFIG_ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP=y
CONFIG_ARCH_WANT_HUGETLB_VMEMMAP_PREINIT=y
CONFIG_HAVE_GUP_FAST=y
CONFIG_NUMA_KEEP_MEMINFO=y
CONFIG_MEMORY_ISOLATION=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_HAVE_BOOTMEM_INFO_NODE=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG=y
# CONFIG_MHP_DEFAULT_ONLINE_TYPE_OFFLINE is not set
CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_AUTO=y
# CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_KERNEL is not set
# CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_MOVABLE is not set
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_MHP_MEMMAP_ON_MEMORY=y
CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y
CONFIG_SPLIT_PTE_PTLOCKS=y
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_SPLIT_PMD_PTLOCKS=y
CONFIG_BALLOON=y
# CONFIG_BALLOON_MIGRATION is not set
CONFIG_COMPACTION=y
CONFIG_COMPACT_UNEVICTABLE_DEFAULT=1
CONFIG_PAGE_REPORTING=y
CONFIG_NUMA_MIGRATION=y
CONFIG_MIGRATION=y
CONFIG_DEVICE_MIGRATION=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_ARCH_ENABLE_THP_MIGRATION=y
CONFIG_CONTIG_ALLOC=y
CONFIG_PCP_BATCH_SCALE_MAX=5
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_MEMORY_FAILURE is not set
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ARCH_WANTS_THP_SWAP=y
# CONFIG_PERSISTENT_HUGE_ZERO_FOLIO is not set
CONFIG_MM_ID=y
CONFIG_TRANSPARENT_HUGEPAGE=y
# CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
# CONFIG_TRANSPARENT_HUGEPAGE_NEVER is not set
# CONFIG_TRANSPARENT_HUGEPAGE_SHMEM_HUGE_NEVER is not set
# CONFIG_TRANSPARENT_HUGEPAGE_SHMEM_HUGE_ALWAYS is not set
# CONFIG_TRANSPARENT_HUGEPAGE_SHMEM_HUGE_WITHIN_SIZE is not set
CONFIG_TRANSPARENT_HUGEPAGE_SHMEM_HUGE_ADVISE=y
# CONFIG_TRANSPARENT_HUGEPAGE_TMPFS_HUGE_NEVER is not set
# CONFIG_TRANSPARENT_HUGEPAGE_TMPFS_HUGE_ALWAYS is not set
# CONFIG_TRANSPARENT_HUGEPAGE_TMPFS_HUGE_WITHIN_SIZE is not set
CONFIG_TRANSPARENT_HUGEPAGE_TMPFS_HUGE_ADVISE=y
CONFIG_THP_SWAP=y
# CONFIG_NO_PAGE_MAPCOUNT is not set
CONFIG_PAGE_MAPCOUNT=y
CONFIG_PGTABLE_HAS_HUGE_LEAVES=y
CONFIG_HAVE_GIGANTIC_FOLIOS=y
CONFIG_ASYNC_KERNEL_PGTABLE_FREE=y
CONFIG_ARCH_SUPPORTS_HUGE_PFNMAP=y
CONFIG_ARCH_SUPPORTS_PMD_PFNMAP=y
CONFIG_ARCH_SUPPORTS_PUD_PFNMAP=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_CMA=y
# CONFIG_CMA_DEBUGFS is not set
# CONFIG_CMA_SYSFS is not set
CONFIG_CMA_AREAS=20
CONFIG_PAGE_BLOCK_MAX_ORDER=10
CONFIG_MEM_SOFT_DIRTY=y
CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_DEFERRED_STRUCT_PAGE_INIT is not set
CONFIG_PAGE_IDLE_FLAG=y
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
CONFIG_ARCH_HAS_ZONE_DMA_SET=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA32=y
CONFIG_ZONE_DEVICE=y
CONFIG_HMM_MIRROR=y
CONFIG_GET_FREE_REGION=y
CONFIG_DEVICE_PRIVATE=y
CONFIG_VMAP_PFN=y
CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y
CONFIG_ARCH_HAS_PKEYS=y
CONFIG_ARCH_USES_PG_ARCH_2=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PERCPU_STATS=y
# CONFIG_GUP_TEST is not set
# CONFIG_DMAPOOL_TEST is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_MAPPING_DIRTY_HELPERS=y
CONFIG_KMAP_LOCAL=y
CONFIG_MEMFD_CREATE=y
CONFIG_SECRETMEM=y
CONFIG_ANON_VMA_NAME=y
CONFIG_HAVE_ARCH_USERFAULTFD_WP=y
CONFIG_HAVE_ARCH_USERFAULTFD_MINOR=y
CONFIG_USERFAULTFD=y
# CONFIG_PTE_MARKER_UFFD_WP is not set
CONFIG_LRU_GEN=y
CONFIG_LRU_GEN_ENABLED=y
# CONFIG_LRU_GEN_STATS is not set
CONFIG_LRU_GEN_WALKS_MMU=y
CONFIG_ARCH_SUPPORTS_PER_VMA_LOCK=y
CONFIG_PER_VMA_LOCK=y
CONFIG_LOCK_MM_AND_FIND_VMA=y
CONFIG_IOMMU_MM_DATA=y
CONFIG_EXECMEM=y
CONFIG_NUMA_MEMBLKS=y
CONFIG_NUMA_EMU=y
CONFIG_ARCH_HAS_USER_SHADOW_STACK=y
CONFIG_PT_RECLAIM=y

#
# Data Access Monitoring
#
CONFIG_DAMON=y
# CONFIG_DAMON_DEBUG_SANITY is not set
CONFIG_DAMON_VADDR=y
CONFIG_DAMON_PADDR=y
# CONFIG_DAMON_SYSFS is not set
CONFIG_DAMON_RECLAIM=y
# CONFIG_DAMON_LRU_SORT is not set
# CONFIG_DAMON_STAT is not set
# end of Data Access Monitoring
# end of Memory Management options

CONFIG_NET=y
CONFIG_WANT_COMPAT_NETLINK_MESSAGES=y
CONFIG_COMPAT_NETLINK_MESSAGES=y
CONFIG_NET_INGRESS=y
CONFIG_NET_EGRESS=y
CONFIG_NET_XGRESS=y
CONFIG_NET_REDIRECT=y
CONFIG_SKB_DECRYPTED=y
CONFIG_SKB_EXTENSIONS=y
CONFIG_NET_DEVMEM=y
CONFIG_NET_SHAPER=y
CONFIG_NET_CRC32C=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_DIAG=y
CONFIG_INET_PSP=y
CONFIG_UNIX=y
CONFIG_AF_UNIX_OOB=y
CONFIG_UNIX_DIAG=y
CONFIG_TLS=y
CONFIG_TLS_DEVICE=y
CONFIG_XFRM=y
CONFIG_XFRM_OFFLOAD=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
CONFIG_XFRM_USER_COMPAT=y
CONFIG_XFRM_INTERFACE=y
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_AH=y
CONFIG_XFRM_ESP=y
CONFIG_XFRM_IPCOMP=y
CONFIG_NET_KEY=y
CONFIG_NET_KEY_MIGRATE=y
CONFIG_XFRM_IPTFS=y
CONFIG_XFRM_ESPINTCP=y
CONFIG_SMC=y
CONFIG_SMC_DIAG=y
# CONFIG_SMC_HS_CTRL_BPF is not set
CONFIG_DIBS=y
CONFIG_DIBS_LO=y
CONFIG_XDP_SOCKETS=y
CONFIG_XDP_SOCKETS_DIAG=y
CONFIG_NET_HANDSHAKE=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_FIB_TRIE_STATS=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
CONFIG_NET_IPIP=y
CONFIG_NET_IPGRE_DEMUX=y
CONFIG_NET_IP_TUNNEL=y
CONFIG_NET_IPGRE=y
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE_COMMON=y
CONFIG_IP_MROUTE=y
CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
CONFIG_NET_IPVTI=y
CONFIG_NET_UDP_TUNNEL=y
CONFIG_NET_FOU=y
CONFIG_NET_FOU_IP_TUNNELS=y
CONFIG_INET_AH=y
CONFIG_INET_ESP=y
CONFIG_INET_ESP_OFFLOAD=y
CONFIG_INET_ESPINTCP=y
CONFIG_INET_IPCOMP=y
CONFIG_INET_TABLE_PERTURB_ORDER=16
CONFIG_INET_XFRM_TUNNEL=y
CONFIG_INET_TUNNEL=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
CONFIG_INET_UDP_DIAG=y
CONFIG_INET_RAW_DIAG=y
CONFIG_INET_DIAG_DESTROY=y
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=y
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=y
CONFIG_TCP_CONG_HTCP=y
CONFIG_TCP_CONG_HSTCP=y
CONFIG_TCP_CONG_HYBLA=y
CONFIG_TCP_CONG_VEGAS=y
CONFIG_TCP_CONG_NV=y
CONFIG_TCP_CONG_SCALABLE=y
CONFIG_TCP_CONG_LP=y
CONFIG_TCP_CONG_VENO=y
CONFIG_TCP_CONG_YEAH=y
CONFIG_TCP_CONG_ILLINOIS=y
CONFIG_TCP_CONG_DCTCP=y
CONFIG_TCP_CONG_CDG=y
CONFIG_TCP_CONG_BBR=y
# CONFIG_DEFAULT_BIC is not set
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_HTCP is not set
# CONFIG_DEFAULT_HYBLA is not set
# CONFIG_DEFAULT_VEGAS is not set
# CONFIG_DEFAULT_VENO is not set
# CONFIG_DEFAULT_WESTWOOD is not set
# CONFIG_DEFAULT_DCTCP is not set
# CONFIG_DEFAULT_CDG is not set
# CONFIG_DEFAULT_BBR is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_AO is not set
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
CONFIG_INET6_ESP_OFFLOAD=y
CONFIG_INET6_ESPINTCP=y
CONFIG_INET6_IPCOMP=y
CONFIG_IPV6_MIP6=y
CONFIG_IPV6_ILA=y
CONFIG_INET6_XFRM_TUNNEL=y
CONFIG_INET6_TUNNEL=y
CONFIG_IPV6_VTI=y
CONFIG_IPV6_SIT=y
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=y
CONFIG_IPV6_GRE=y
CONFIG_IPV6_FOU=y
CONFIG_IPV6_FOU_TUNNEL=y
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
CONFIG_IPV6_SEG6_LWTUNNEL=y
CONFIG_IPV6_SEG6_HMAC=y
CONFIG_IPV6_SEG6_BPF=y
CONFIG_IPV6_RPL_LWTUNNEL=y
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
CONFIG_NETLABEL=y
CONFIG_MPTCP=y
CONFIG_INET_MPTCP_DIAG=y
CONFIG_MPTCP_IPV6=y
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
CONFIG_NETFILTER_EGRESS=y
CONFIG_NETFILTER_SKIP_EGRESS=y
CONFIG_NETFILTER_NETLINK=y
CONFIG_NETFILTER_FAMILY_BRIDGE=y
CONFIG_NETFILTER_FAMILY_ARP=y
CONFIG_NETFILTER_BPF_LINK=y
# CONFIG_NETFILTER_NETLINK_HOOK is not set
CONFIG_NETFILTER_NETLINK_ACCT=y
CONFIG_NETFILTER_NETLINK_QUEUE=y
CONFIG_NETFILTER_NETLINK_LOG=y
CONFIG_NETFILTER_NETLINK_OSF=y
CONFIG_NF_CONNTRACK=y
CONFIG_NF_LOG_SYSLOG=y
CONFIG_NETFILTER_CONNCOUNT=y
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_ZONES=y
# CONFIG_NF_CONNTRACK_PROCFS is not set
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_TIMEOUT=y
CONFIG_NF_CONNTRACK_TIMESTAMP=y
CONFIG_NF_CONNTRACK_LABELS=y
CONFIG_NF_CONNTRACK_OVS=y
CONFIG_NF_CT_PROTO_GRE=y
CONFIG_NF_CT_PROTO_SCTP=y
CONFIG_NF_CONNTRACK_AMANDA=y
CONFIG_NF_CONNTRACK_FTP=y
CONFIG_NF_CONNTRACK_H323=y
CONFIG_NF_CONNTRACK_IRC=y
CONFIG_NF_CONNTRACK_BROADCAST=y
CONFIG_NF_CONNTRACK_NETBIOS_NS=y
CONFIG_NF_CONNTRACK_SNMP=y
CONFIG_NF_CONNTRACK_PPTP=y
CONFIG_NF_CONNTRACK_SANE=y
CONFIG_NF_CONNTRACK_SIP=y
CONFIG_NF_CONNTRACK_TFTP=y
CONFIG_NF_CT_NETLINK=y
CONFIG_NF_CT_NETLINK_TIMEOUT=y
CONFIG_NF_CT_NETLINK_HELPER=y
CONFIG_NETFILTER_NETLINK_GLUE_CT=y
CONFIG_NF_NAT=y
CONFIG_NF_NAT_AMANDA=y
CONFIG_NF_NAT_FTP=y
CONFIG_NF_NAT_IRC=y
CONFIG_NF_NAT_SIP=y
CONFIG_NF_NAT_TFTP=y
CONFIG_NF_NAT_REDIRECT=y
CONFIG_NF_NAT_MASQUERADE=y
CONFIG_NF_NAT_OVS=y
CONFIG_NETFILTER_SYNPROXY=y
CONFIG_NF_TABLES=y
CONFIG_NF_TABLES_INET=y
CONFIG_NF_TABLES_NETDEV=y
CONFIG_NFT_NUMGEN=y
CONFIG_NFT_CT=y
CONFIG_NFT_EXTHDR_DCCP=y
CONFIG_NFT_FLOW_OFFLOAD=y
CONFIG_NFT_CONNLIMIT=y
CONFIG_NFT_LOG=y
CONFIG_NFT_LIMIT=y
CONFIG_NFT_MASQ=y
CONFIG_NFT_REDIR=y
CONFIG_NFT_NAT=y
CONFIG_NFT_TUNNEL=y
CONFIG_NFT_QUEUE=y
CONFIG_NFT_QUOTA=y
CONFIG_NFT_REJECT=y
CONFIG_NFT_REJECT_INET=y
CONFIG_NFT_COMPAT=y
CONFIG_NFT_HASH=y
CONFIG_NFT_FIB=y
CONFIG_NFT_FIB_INET=y
CONFIG_NFT_XFRM=y
CONFIG_NFT_SOCKET=y
CONFIG_NFT_OSF=y
CONFIG_NFT_TPROXY=y
CONFIG_NFT_SYNPROXY=y
CONFIG_NF_DUP_NETDEV=y
CONFIG_NFT_DUP_NETDEV=y
CONFIG_NFT_FWD_NETDEV=y
CONFIG_NFT_FIB_NETDEV=y
CONFIG_NFT_REJECT_NETDEV=y
CONFIG_NF_FLOW_TABLE_INET=y
CONFIG_NF_FLOW_TABLE=y
# CONFIG_NF_FLOW_TABLE_PROCFS is not set
CONFIG_NETFILTER_XTABLES=y
CONFIG_NETFILTER_XTABLES_COMPAT=y
CONFIG_NETFILTER_XTABLES_LEGACY=y

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=y
CONFIG_NETFILTER_XT_CONNMARK=y
CONFIG_NETFILTER_XT_SET=y

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_AUDIT=y
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=y
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=y
CONFIG_NETFILTER_XT_TARGET_CONNMARK=y
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
CONFIG_NETFILTER_XT_TARGET_CT=y
CONFIG_NETFILTER_XT_TARGET_DSCP=y
CONFIG_NETFILTER_XT_TARGET_HL=y
CONFIG_NETFILTER_XT_TARGET_HMARK=y
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=y
CONFIG_NETFILTER_XT_TARGET_LED=y
CONFIG_NETFILTER_XT_TARGET_LOG=y
CONFIG_NETFILTER_XT_TARGET_MARK=y
CONFIG_NETFILTER_XT_NAT=y
CONFIG_NETFILTER_XT_TARGET_NETMAP=y
CONFIG_NETFILTER_XT_TARGET_NFLOG=y
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=y
CONFIG_NETFILTER_XT_TARGET_NOTRACK=y
CONFIG_NETFILTER_XT_TARGET_RATEEST=y
CONFIG_NETFILTER_XT_TARGET_REDIRECT=y
CONFIG_NETFILTER_XT_TARGET_MASQUERADE=y
CONFIG_NETFILTER_XT_TARGET_TEE=y
CONFIG_NETFILTER_XT_TARGET_TPROXY=y
CONFIG_NETFILTER_XT_TARGET_TRACE=y
CONFIG_NETFILTER_XT_TARGET_SECMARK=y
CONFIG_NETFILTER_XT_TARGET_TCPMSS=y
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=y

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=y
CONFIG_NETFILTER_XT_MATCH_BPF=y
CONFIG_NETFILTER_XT_MATCH_CGROUP=y
CONFIG_NETFILTER_XT_MATCH_CLUSTER=y
CONFIG_NETFILTER_XT_MATCH_COMMENT=y
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=y
CONFIG_NETFILTER_XT_MATCH_CONNLABEL=y
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=y
CONFIG_NETFILTER_XT_MATCH_CONNMARK=y
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
CONFIG_NETFILTER_XT_MATCH_CPU=y
CONFIG_NETFILTER_XT_MATCH_DCCP=y
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=y
CONFIG_NETFILTER_XT_MATCH_DSCP=y
CONFIG_NETFILTER_XT_MATCH_ECN=y
CONFIG_NETFILTER_XT_MATCH_ESP=y
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=y
CONFIG_NETFILTER_XT_MATCH_HELPER=y
CONFIG_NETFILTER_XT_MATCH_HL=y
CONFIG_NETFILTER_XT_MATCH_IPCOMP=y
CONFIG_NETFILTER_XT_MATCH_IPRANGE=y
CONFIG_NETFILTER_XT_MATCH_IPVS=y
CONFIG_NETFILTER_XT_MATCH_L2TP=y
CONFIG_NETFILTER_XT_MATCH_LENGTH=y
CONFIG_NETFILTER_XT_MATCH_LIMIT=y
CONFIG_NETFILTER_XT_MATCH_MAC=y
CONFIG_NETFILTER_XT_MATCH_MARK=y
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=y
CONFIG_NETFILTER_XT_MATCH_NFACCT=y
CONFIG_NETFILTER_XT_MATCH_OSF=y
CONFIG_NETFILTER_XT_MATCH_OWNER=y
CONFIG_NETFILTER_XT_MATCH_POLICY=y
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=y
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=y
CONFIG_NETFILTER_XT_MATCH_QUOTA=y
CONFIG_NETFILTER_XT_MATCH_RATEEST=y
CONFIG_NETFILTER_XT_MATCH_REALM=y
CONFIG_NETFILTER_XT_MATCH_RECENT=y
CONFIG_NETFILTER_XT_MATCH_SCTP=y
CONFIG_NETFILTER_XT_MATCH_SOCKET=y
CONFIG_NETFILTER_XT_MATCH_STATE=y
CONFIG_NETFILTER_XT_MATCH_STATISTIC=y
CONFIG_NETFILTER_XT_MATCH_STRING=y
CONFIG_NETFILTER_XT_MATCH_TCPMSS=y
CONFIG_NETFILTER_XT_MATCH_TIME=y
CONFIG_NETFILTER_XT_MATCH_U32=y
# end of Core Netfilter Configuration

CONFIG_IP_SET=y
CONFIG_IP_SET_MAX=256
CONFIG_IP_SET_BITMAP_IP=y
CONFIG_IP_SET_BITMAP_IPMAC=y
CONFIG_IP_SET_BITMAP_PORT=y
CONFIG_IP_SET_HASH_IP=y
CONFIG_IP_SET_HASH_IPMARK=y
CONFIG_IP_SET_HASH_IPPORT=y
CONFIG_IP_SET_HASH_IPPORTIP=y
CONFIG_IP_SET_HASH_IPPORTNET=y
CONFIG_IP_SET_HASH_IPMAC=y
CONFIG_IP_SET_HASH_MAC=y
CONFIG_IP_SET_HASH_NETPORTNET=y
CONFIG_IP_SET_HASH_NET=y
CONFIG_IP_SET_HASH_NETNET=y
CONFIG_IP_SET_HASH_NETPORT=y
CONFIG_IP_SET_HASH_NETIFACE=y
CONFIG_IP_SET_LIST_SET=y
CONFIG_IP_VS=y
CONFIG_IP_VS_IPV6=y
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=y
CONFIG_IP_VS_WRR=y
CONFIG_IP_VS_LC=y
CONFIG_IP_VS_WLC=y
CONFIG_IP_VS_FO=y
CONFIG_IP_VS_OVF=y
CONFIG_IP_VS_LBLC=y
CONFIG_IP_VS_LBLCR=y
CONFIG_IP_VS_DH=y
CONFIG_IP_VS_SH=y
CONFIG_IP_VS_MH=y
CONFIG_IP_VS_SED=y
CONFIG_IP_VS_NQ=y
CONFIG_IP_VS_TWOS=y

#
# IPVS SH scheduler
#
CONFIG_IP_VS_SH_TAB_BITS=8

#
# IPVS MH scheduler
#
CONFIG_IP_VS_MH_TAB_INDEX=12

#
# IPVS application helper
#
CONFIG_IP_VS_FTP=y
CONFIG_IP_VS_NFCT=y
CONFIG_IP_VS_PE_SIP=y

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=y
CONFIG_IP_NF_IPTABLES_LEGACY=y
CONFIG_NF_SOCKET_IPV4=y
CONFIG_NF_TPROXY_IPV4=y
CONFIG_NF_TABLES_IPV4=y
CONFIG_NFT_REJECT_IPV4=y
CONFIG_NFT_DUP_IPV4=y
CONFIG_NFT_FIB_IPV4=y
CONFIG_NF_TABLES_ARP=y
CONFIG_NF_DUP_IPV4=y
CONFIG_NF_LOG_ARP=y
CONFIG_NF_LOG_IPV4=y
CONFIG_NF_REJECT_IPV4=y
CONFIG_NF_NAT_SNMP_BASIC=y
CONFIG_NF_NAT_PPTP=y
CONFIG_NF_NAT_H323=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_AH=y
CONFIG_IP_NF_MATCH_ECN=y
CONFIG_IP_NF_MATCH_RPFILTER=y
CONFIG_IP_NF_MATCH_TTL=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
CONFIG_IP_NF_TARGET_SYNPROXY=y
CONFIG_IP_NF_NAT=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_IP_NF_TARGET_NETMAP=y
CONFIG_IP_NF_TARGET_REDIRECT=y
CONFIG_IP_NF_MANGLE=y
CONFIG_IP_NF_TARGET_ECN=y
CONFIG_IP_NF_TARGET_TTL=y
CONFIG_IP_NF_RAW=y
CONFIG_IP_NF_SECURITY=y
CONFIG_IP_NF_ARPTABLES=y
CONFIG_NFT_COMPAT_ARP=y
CONFIG_IP_NF_ARPFILTER=y
CONFIG_IP_NF_ARP_MANGLE=y
# end of IP: Netfilter Configuration

#
# IPv6: Netfilter Configuration
#
CONFIG_IP6_NF_IPTABLES_LEGACY=y
CONFIG_NF_SOCKET_IPV6=y
CONFIG_NF_TPROXY_IPV6=y
CONFIG_NF_TABLES_IPV6=y
CONFIG_NFT_REJECT_IPV6=y
CONFIG_NFT_DUP_IPV6=y
CONFIG_NFT_FIB_IPV6=y
CONFIG_NF_DUP_IPV6=y
CONFIG_NF_REJECT_IPV6=y
CONFIG_NF_LOG_IPV6=y
CONFIG_IP6_NF_IPTABLES=y
CONFIG_IP6_NF_MATCH_AH=y
CONFIG_IP6_NF_MATCH_EUI64=y
CONFIG_IP6_NF_MATCH_FRAG=y
CONFIG_IP6_NF_MATCH_OPTS=y
CONFIG_IP6_NF_MATCH_HL=y
CONFIG_IP6_NF_MATCH_IPV6HEADER=y
CONFIG_IP6_NF_MATCH_MH=y
CONFIG_IP6_NF_MATCH_RPFILTER=y
CONFIG_IP6_NF_MATCH_RT=y
CONFIG_IP6_NF_MATCH_SRH=y
CONFIG_IP6_NF_TARGET_HL=y
CONFIG_IP6_NF_FILTER=y
CONFIG_IP6_NF_TARGET_REJECT=y
CONFIG_IP6_NF_TARGET_SYNPROXY=y
CONFIG_IP6_NF_MANGLE=y
CONFIG_IP6_NF_RAW=y
CONFIG_IP6_NF_SECURITY=y
CONFIG_IP6_NF_NAT=y
CONFIG_IP6_NF_TARGET_MASQUERADE=y
CONFIG_IP6_NF_TARGET_NPT=y
# end of IPv6: Netfilter Configuration

CONFIG_NF_DEFRAG_IPV6=y
CONFIG_NF_TABLES_BRIDGE=y
CONFIG_NFT_BRIDGE_META=y
CONFIG_NFT_BRIDGE_REJECT=y
CONFIG_NF_CONNTRACK_BRIDGE=y
CONFIG_BRIDGE_NF_EBTABLES_LEGACY=y
CONFIG_BRIDGE_NF_EBTABLES=y
CONFIG_BRIDGE_EBT_BROUTE=y
CONFIG_BRIDGE_EBT_T_FILTER=y
CONFIG_BRIDGE_EBT_T_NAT=y
CONFIG_BRIDGE_EBT_802_3=y
CONFIG_BRIDGE_EBT_AMONG=y
CONFIG_BRIDGE_EBT_ARP=y
CONFIG_BRIDGE_EBT_IP=y
CONFIG_BRIDGE_EBT_IP6=y
CONFIG_BRIDGE_EBT_LIMIT=y
CONFIG_BRIDGE_EBT_MARK=y
CONFIG_BRIDGE_EBT_PKTTYPE=y
CONFIG_BRIDGE_EBT_STP=y
CONFIG_BRIDGE_EBT_VLAN=y
CONFIG_BRIDGE_EBT_ARPREPLY=y
CONFIG_BRIDGE_EBT_DNAT=y
CONFIG_BRIDGE_EBT_MARK_T=y
CONFIG_BRIDGE_EBT_REDIRECT=y
CONFIG_BRIDGE_EBT_SNAT=y
CONFIG_BRIDGE_EBT_LOG=y
CONFIG_BRIDGE_EBT_NFLOG=y
CONFIG_IP_SCTP=y
# CONFIG_SCTP_DBG_OBJCNT is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA256=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
CONFIG_INET_SCTP_DIAG=y
CONFIG_RDS=y
CONFIG_RDS_RDMA=y
CONFIG_RDS_TCP=y
# CONFIG_RDS_DEBUG is not set
CONFIG_TIPC=y
CONFIG_TIPC_MEDIA_IB=y
CONFIG_TIPC_MEDIA_UDP=y
CONFIG_TIPC_CRYPTO=y
CONFIG_TIPC_DIAG=y
CONFIG_ATM=y
CONFIG_ATM_BR2684=y
# CONFIG_ATM_BR2684_IPFILTER is not set
CONFIG_L2TP=y
# CONFIG_L2TP_DEBUGFS is not set
CONFIG_L2TP_V3=y
CONFIG_L2TP_IP=y
CONFIG_L2TP_ETH=y
CONFIG_STP=y
CONFIG_GARP=y
CONFIG_MRP=y
CONFIG_BRIDGE=y
CONFIG_BRIDGE_IGMP_SNOOPING=y
CONFIG_BRIDGE_VLAN_FILTERING=y
CONFIG_BRIDGE_MRP=y
CONFIG_BRIDGE_CFM=y
CONFIG_NET_DSA=y
# CONFIG_NET_DSA_TAG_NONE is not set
# CONFIG_NET_DSA_TAG_AR9331 is not set
CONFIG_NET_DSA_TAG_BRCM_COMMON=y
CONFIG_NET_DSA_TAG_BRCM=y
# CONFIG_NET_DSA_TAG_BRCM_LEGACY is not set
# CONFIG_NET_DSA_TAG_BRCM_LEGACY_FCS is not set
CONFIG_NET_DSA_TAG_BRCM_PREPEND=y
# CONFIG_NET_DSA_TAG_HELLCREEK is not set
# CONFIG_NET_DSA_TAG_GSWIP is not set
# CONFIG_NET_DSA_TAG_DSA is not set
# CONFIG_NET_DSA_TAG_EDSA is not set
CONFIG_NET_DSA_TAG_MTK=y
# CONFIG_NET_DSA_TAG_MXL_862XX is not set
# CONFIG_NET_DSA_TAG_MXL_GSW1XX is not set
# CONFIG_NET_DSA_TAG_KSZ is not set
# CONFIG_NET_DSA_TAG_NETC is not set
# CONFIG_NET_DSA_TAG_OCELOT is not set
# CONFIG_NET_DSA_TAG_OCELOT_8021Q is not set
CONFIG_NET_DSA_TAG_QCA=y
CONFIG_NET_DSA_TAG_RTL4_A=y
# CONFIG_NET_DSA_TAG_RTL8_4 is not set
# CONFIG_NET_DSA_TAG_RZN1_A5PSW is not set
# CONFIG_NET_DSA_TAG_LAN9303 is not set
# CONFIG_NET_DSA_TAG_SJA1105 is not set
# CONFIG_NET_DSA_TAG_TRAILER is not set
# CONFIG_NET_DSA_TAG_VSC73XX_8021Q is not set
# CONFIG_NET_DSA_TAG_XRS700X is not set
# CONFIG_NET_DSA_TAG_YT921X is not set
CONFIG_VLAN_8021Q=y
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_VLAN_8021Q_MVRP=y
CONFIG_LLC=y
CONFIG_LLC2=y
CONFIG_X25=y
CONFIG_LAPB=y
CONFIG_PHONET=y
CONFIG_6LOWPAN=y
# CONFIG_6LOWPAN_DEBUGFS is not set
CONFIG_6LOWPAN_NHC=y
CONFIG_6LOWPAN_NHC_DEST=y
CONFIG_6LOWPAN_NHC_FRAGMENT=y
CONFIG_6LOWPAN_NHC_HOP=y
CONFIG_6LOWPAN_NHC_IPV6=y
CONFIG_6LOWPAN_NHC_MOBILITY=y
CONFIG_6LOWPAN_NHC_ROUTING=y
CONFIG_6LOWPAN_NHC_UDP=y
CONFIG_6LOWPAN_GHC_EXT_HDR_HOP=y
CONFIG_6LOWPAN_GHC_UDP=y
CONFIG_6LOWPAN_GHC_ICMPV6=y
CONFIG_6LOWPAN_GHC_EXT_HDR_DEST=y
CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG=y
CONFIG_6LOWPAN_GHC_EXT_HDR_ROUTE=y
CONFIG_IEEE802154=y
CONFIG_IEEE802154_NL802154_EXPERIMENTAL=y
CONFIG_IEEE802154_SOCKET=y
CONFIG_IEEE802154_6LOWPAN=y
CONFIG_MAC802154=y
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_HTB=y
CONFIG_NET_SCH_HFSC=y
CONFIG_NET_SCH_PRIO=y
CONFIG_NET_SCH_MULTIQ=y
CONFIG_NET_SCH_RED=y
CONFIG_NET_SCH_SFB=y
CONFIG_NET_SCH_SFQ=y
CONFIG_NET_SCH_TEQL=y
CONFIG_NET_SCH_TBF=y
CONFIG_NET_SCH_CBS=y
CONFIG_NET_SCH_ETF=y
CONFIG_NET_SCH_MQPRIO_LIB=y
CONFIG_NET_SCH_TAPRIO=y
CONFIG_NET_SCH_GRED=y
CONFIG_NET_SCH_NETEM=y
CONFIG_NET_SCH_DRR=y
CONFIG_NET_SCH_MQPRIO=y
CONFIG_NET_SCH_SKBPRIO=y
CONFIG_NET_SCH_CHOKE=y
CONFIG_NET_SCH_QFQ=y
CONFIG_NET_SCH_CODEL=y
CONFIG_NET_SCH_FQ_CODEL=y
CONFIG_NET_SCH_CAKE=y
CONFIG_NET_SCH_FQ=y
CONFIG_NET_SCH_HHF=y
CONFIG_NET_SCH_PIE=y
CONFIG_NET_SCH_FQ_PIE=y
CONFIG_NET_SCH_INGRESS=y
CONFIG_NET_SCH_PLUG=y
CONFIG_NET_SCH_ETS=y
# CONFIG_NET_SCH_DUALPI2 is not set
CONFIG_NET_SCH_DEFAULT=y
# CONFIG_DEFAULT_FQ is not set
CONFIG_DEFAULT_CODEL=y
# CONFIG_DEFAULT_FQ_CODEL is not set
# CONFIG_DEFAULT_FQ_PIE is not set
# CONFIG_DEFAULT_SFQ is not set
# CONFIG_DEFAULT_PFIFO_FAST is not set
CONFIG_DEFAULT_NET_SCH="pfifo_fast"

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=y
CONFIG_NET_CLS_ROUTE4=y
CONFIG_NET_CLS_FW=y
CONFIG_NET_CLS_U32=y
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_FLOW=y
CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_CLS_BPF=y
CONFIG_NET_CLS_FLOWER=y
CONFIG_NET_CLS_MATCHALL=y
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=y
CONFIG_NET_EMATCH_NBYTE=y
CONFIG_NET_EMATCH_U32=y
CONFIG_NET_EMATCH_META=y
CONFIG_NET_EMATCH_TEXT=y
CONFIG_NET_EMATCH_CANID=y
CONFIG_NET_EMATCH_IPSET=y
CONFIG_NET_EMATCH_IPT=y
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=y
CONFIG_NET_ACT_GACT=y
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=y
CONFIG_NET_ACT_SAMPLE=y
CONFIG_NET_ACT_NAT=y
CONFIG_NET_ACT_PEDIT=y
CONFIG_NET_ACT_SIMP=y
CONFIG_NET_ACT_SKBEDIT=y
CONFIG_NET_ACT_CSUM=y
CONFIG_NET_ACT_MPLS=y
CONFIG_NET_ACT_VLAN=y
CONFIG_NET_ACT_BPF=y
CONFIG_NET_ACT_CONNMARK=y
CONFIG_NET_ACT_CTINFO=y
CONFIG_NET_ACT_SKBMOD=y
CONFIG_NET_ACT_IFE=y
CONFIG_NET_ACT_TUNNEL_KEY=y
CONFIG_NET_ACT_CT=y
CONFIG_NET_ACT_GATE=y
CONFIG_NET_IFE_SKBMARK=y
CONFIG_NET_IFE_SKBPRIO=y
CONFIG_NET_IFE_SKBTCINDEX=y
CONFIG_NET_TC_SKB_EXT=y
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=y
CONFIG_BATMAN_ADV=y
CONFIG_BATMAN_ADV_BATMAN_V=y
CONFIG_BATMAN_ADV_BLA=y
CONFIG_BATMAN_ADV_DAT=y
CONFIG_BATMAN_ADV_MCAST=y
# CONFIG_BATMAN_ADV_DEBUG is not set
# CONFIG_BATMAN_ADV_TRACING is not set
CONFIG_OPENVSWITCH=y
CONFIG_OPENVSWITCH_GRE=y
CONFIG_OPENVSWITCH_VXLAN=y
CONFIG_OPENVSWITCH_GENEVE=y
CONFIG_VSOCKETS=y
CONFIG_VSOCKETS_DIAG=y
CONFIG_VSOCKETS_LOOPBACK=y
# CONFIG_VMWARE_VMCI_VSOCKETS is not set
CONFIG_VIRTIO_VSOCKETS=y
CONFIG_VIRTIO_VSOCKETS_COMMON=y
CONFIG_NETLINK_DIAG=y
CONFIG_MPLS=y
CONFIG_NET_MPLS_GSO=y
CONFIG_MPLS_ROUTING=y
CONFIG_MPLS_IPTUNNEL=y
CONFIG_NET_NSH=y
CONFIG_HSR=y
CONFIG_NET_SWITCHDEV=y
CONFIG_NET_L3_MASTER_DEV=y
CONFIG_QRTR=y
CONFIG_QRTR_TUN=y
# CONFIG_QRTR_MHI is not set
CONFIG_NET_NCSI=y
# CONFIG_NCSI_OEM_CMD_GET_MAC is not set
# CONFIG_NCSI_OEM_CMD_KEEP_PHY is not set
# CONFIG_PCPU_DEV_REFCNT is not set
CONFIG_MAX_SKB_FRAGS=17
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
CONFIG_CGROUP_NET_PRIO=y
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
CONFIG_NET_DROP_MONITOR=y
# end of Network testing
# end of Networking options

CONFIG_CAN=y
CONFIG_CAN_RAW=y
CONFIG_CAN_BCM=y
CONFIG_CAN_GW=y
CONFIG_CAN_J1939=y
CONFIG_CAN_ISOTP=y
CONFIG_BT=y
CONFIG_BT_BREDR=y
CONFIG_BT_RFCOMM=y
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=y
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=y
CONFIG_BT_LE=y
CONFIG_BT_LE_L2CAP_ECRED=y
CONFIG_BT_6LOWPAN=y
CONFIG_BT_LEDS=y
CONFIG_BT_MSFTEXT=y
# CONFIG_BT_AOSPEXT is not set
# CONFIG_BT_DEBUGFS is not set
# CONFIG_BT_SELFTEST is not set

#
# Bluetooth device drivers
#
CONFIG_BT_INTEL=y
CONFIG_BT_BCM=y
CONFIG_BT_RTL=y
CONFIG_BT_QCA=y
CONFIG_BT_MTK=y
CONFIG_BT_HCIBTUSB=y
CONFIG_BT_HCIBTUSB_AUTOSUSPEND=y
CONFIG_BT_HCIBTUSB_POLL_SYNC=y
CONFIG_BT_HCIBTUSB_BCM=y
CONFIG_BT_HCIBTUSB_MTK=y
CONFIG_BT_HCIBTUSB_RTL=y
# CONFIG_BT_HCIBTSDIO is not set
CONFIG_BT_HCIUART=y
CONFIG_BT_HCIUART_SERDEV=y
CONFIG_BT_HCIUART_H4=y
# CONFIG_BT_HCIUART_NOKIA is not set
CONFIG_BT_HCIUART_BCSP=y
# CONFIG_BT_HCIUART_ATH3K is not set
CONFIG_BT_HCIUART_LL=y
CONFIG_BT_HCIUART_3WIRE=y
# CONFIG_BT_HCIUART_INTEL is not set
# CONFIG_BT_HCIUART_BCM is not set
# CONFIG_BT_HCIUART_RTL is not set
CONFIG_BT_HCIUART_QCA=y
CONFIG_BT_HCIUART_AG6XX=y
CONFIG_BT_HCIUART_MRVL=y
# CONFIG_BT_HCIUART_AML is not set
CONFIG_BT_HCIBCM203X=y
# CONFIG_BT_HCIBCM4377 is not set
CONFIG_BT_HCIBPA10X=y
CONFIG_BT_HCIBFUSB=y
CONFIG_BT_HCIVHCI=y
CONFIG_BT_MRVL=y
CONFIG_BT_MRVL_SDIO=y
CONFIG_BT_ATH3K=y
CONFIG_BT_MTKSDIO=y
CONFIG_BT_MTKUART=y
# CONFIG_BT_VIRTIO is not set
# CONFIG_BT_NXPUART is not set
# CONFIG_BT_INTEL_PCIE is not set
# end of Bluetooth device drivers

CONFIG_AF_RXRPC=y
CONFIG_AF_RXRPC_IPV6=y
# CONFIG_AF_RXRPC_INJECT_LOSS is not set
# CONFIG_AF_RXRPC_INJECT_RX_DELAY is not set
# CONFIG_AF_RXRPC_DEBUG is not set
CONFIG_RXKAD=y
# CONFIG_RXGK is not set
# CONFIG_RXPERF is not set
CONFIG_AF_KCM=y
CONFIG_STREAM_PARSER=y
CONFIG_MCTP=y
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_CFG80211=y
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
# CONFIG_CFG80211_CERTIFICATION_ONUS is not set
CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y
CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS=y
CONFIG_CFG80211_DEFAULT_PS=y
CONFIG_CFG80211_DEBUGFS=y
CONFIG_CFG80211_CRDA_SUPPORT=y
CONFIG_CFG80211_WEXT=y
CONFIG_MAC80211=y
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
CONFIG_MAC80211_DEBUGFS=y
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
CONFIG_RFKILL=y
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_GPIO is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_FD=y
CONFIG_NET_9P_VIRTIO=y
# CONFIG_NET_9P_USBG is not set
CONFIG_NET_9P_RDMA=y
# CONFIG_NET_9P_DEBUG is not set
CONFIG_CEPH_LIB=y
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
CONFIG_CEPH_LIB_USE_DNS_RESOLVER=y
CONFIG_NFC=y
CONFIG_NFC_DIGITAL=y
CONFIG_NFC_NCI=y
# CONFIG_NFC_NCI_SPI is not set
CONFIG_NFC_NCI_UART=y
CONFIG_NFC_HCI=y
CONFIG_NFC_SHDLC=y

#
# Near Field Communication (NFC) devices
#
# CONFIG_NFC_TRF7970A is not set
# CONFIG_NFC_MEI_PHY is not set
CONFIG_NFC_SIM=y
CONFIG_NFC_PORT100=y
CONFIG_NFC_VIRTUAL_NCI=y
CONFIG_NFC_FDP=y
# CONFIG_NFC_FDP_I2C is not set
# CONFIG_NFC_PN544_I2C is not set
CONFIG_NFC_PN533=y
CONFIG_NFC_PN533_USB=y
# CONFIG_NFC_PN533_I2C is not set
# CONFIG_NFC_PN532_UART is not set
# CONFIG_NFC_MICROREAD_I2C is not set
CONFIG_NFC_MRVL=y
CONFIG_NFC_MRVL_USB=y
# CONFIG_NFC_MRVL_UART is not set
# CONFIG_NFC_MRVL_I2C is not set
# CONFIG_NFC_ST21NFCA_I2C is not set
# CONFIG_NFC_ST_NCI_I2C is not set
# CONFIG_NFC_ST_NCI_SPI is not set
# CONFIG_NFC_NXP_NCI is not set
# CONFIG_NFC_S3FWRN5_I2C is not set
# CONFIG_NFC_S3FWRN82_UART is not set
# CONFIG_NFC_ST95HF is not set
# end of Near Field Communication (NFC) devices

CONFIG_PSAMPLE=y
CONFIG_NET_IFE=y
CONFIG_LWTUNNEL=y
CONFIG_LWTUNNEL_BPF=y
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_SOCK_VALIDATE_XMIT=y
CONFIG_NET_SELFTESTS=y
CONFIG_NET_SOCK_MSG=y
CONFIG_NET_DEVLINK=y
CONFIG_PAGE_POOL=y
# CONFIG_PAGE_POOL_STATS is not set
CONFIG_FAILOVER=y
CONFIG_ETHTOOL_NETLINK=y

#
# Device Drivers
#
CONFIG_HAVE_PCI=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
# CONFIG_PCIEAER_INJECT is not set
# CONFIG_PCIE_ECRC is not set
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
# CONFIG_PCIE_DPC is not set
# CONFIG_PCIE_PTM is not set
CONFIG_PCI_MSI=y
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_PF_STUB is not set
CONFIG_PCI_ATS=y
# CONFIG_PCI_TSM is not set
# CONFIG_PCI_DOE is not set
CONFIG_PCI_ECAM=y
CONFIG_PCI_LOCKLESS_CONFIG=y
CONFIG_PCI_IOV=y
# CONFIG_PCI_NPEM is not set
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
# CONFIG_PCIE_TPH is not set
# CONFIG_PCI_P2PDMA is not set
CONFIG_PCI_LABEL=y
# CONFIG_PCI_DYNAMIC_OF_NODES is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
CONFIG_HOTPLUG_PCI=y
# CONFIG_HOTPLUG_PCI_ACPI is not set
# CONFIG_HOTPLUG_PCI_CPCI is not set
# CONFIG_HOTPLUG_PCI_OCTEONEP is not set
# CONFIG_HOTPLUG_PCI_SHPC is not set

#
# PCI controller drivers
#
CONFIG_PCI_HOST_COMMON=y
# CONFIG_PCI_FTPCI100 is not set
CONFIG_PCI_HOST_GENERIC=y
# CONFIG_VMD is not set
# CONFIG_PCIE_XILINX is not set

#
# Cadence-based PCIe controllers
#
# CONFIG_PCIE_CADENCE_PLAT_HOST is not set
# CONFIG_PCIE_CADENCE_PLAT_EP is not set
# end of Cadence-based PCIe controllers

#
# DesignWare-based PCIe controllers
#
# CONFIG_PCI_MESON is not set
# CONFIG_PCIE_INTEL_GW is not set
# CONFIG_PCIE_DW_PLAT_HOST is not set
# CONFIG_PCIE_DW_PLAT_EP is not set
# end of DesignWare-based PCIe controllers

#
# Mobiveil-based PCIe controllers
#
# end of Mobiveil-based PCIe controllers

#
# PLDA-based PCIe controllers
#
# CONFIG_PCIE_MICROCHIP_HOST is not set
# end of PLDA-based PCIe controllers
# end of PCI controller drivers

#
# PCI Endpoint
#
CONFIG_PCI_ENDPOINT=y
# CONFIG_PCI_ENDPOINT_CONFIGFS is not set
# CONFIG_PCI_ENDPOINT_MSI_DOORBELL is not set
# CONFIG_PCI_EPF_TEST is not set
# CONFIG_PCI_EPF_NTB is not set
# end of PCI Endpoint

#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
# end of PCI switch controller drivers

# CONFIG_PCI_PWRCTRL_GENERIC is not set
# CONFIG_PCI_PWRCTRL_TC9563 is not set
# CONFIG_CXL_BUS is not set
CONFIG_PCCARD=y
CONFIG_PCMCIA=y
CONFIG_PCMCIA_LOAD_CIS=y
CONFIG_CARDBUS=y

#
# PC-card bridges
#
CONFIG_YENTA=y
CONFIG_YENTA_O2=y
CONFIG_YENTA_RICOH=y
CONFIG_YENTA_TI=y
CONFIG_YENTA_ENE_TUNE=y
CONFIG_YENTA_TOSHIBA=y
# CONFIG_PD6729 is not set
CONFIG_PCCARD_NONSTATIC=y
# CONFIG_RAPIDIO is not set
# CONFIG_PC104 is not set

#
# Generic Driver Options
#
CONFIG_AUXILIARY_BUS=y
CONFIG_UEVENT_HELPER=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_DEVTMPFS_SAFE is not set
CONFIG_DRIVER_DEFERRED_PROBE_TIMEOUT=10
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=y
# CONFIG_FW_LOADER_DEBUG is not set
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_FW_LOADER_SYSFS=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
CONFIG_FW_LOADER_COMPRESS=y
# CONFIG_FW_LOADER_COMPRESS_XZ is not set
# CONFIG_FW_LOADER_COMPRESS_ZSTD is not set
CONFIG_FW_CACHE=y
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader

CONFIG_WANT_DEV_COREDUMP=y
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
CONFIG_DEBUG_DEVRES=y
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_GENERIC_CPU_DEVICES=y
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_SPI=y
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUT is not set
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_MOXTET is not set
CONFIG_MHI_BUS=y
# CONFIG_MHI_BUS_DEBUG is not set
# CONFIG_MHI_BUS_PCI_GENERIC is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices

CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol

# CONFIG_EDD is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DMIID=y
# CONFIG_DMI_SYSFS is not set
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_ISCSI_IBFT is not set
# CONFIG_FW_CFG_SYSFS is not set
CONFIG_SYSFB=y
# CONFIG_SYSFB_SIMPLEFB is not set
CONFIG_GOOGLE_FIRMWARE=y
# CONFIG_GOOGLE_SMI is not set
# CONFIG_GOOGLE_CBMEM is not set
CONFIG_GOOGLE_COREBOOT_TABLE=y
CONFIG_GOOGLE_MEMCONSOLE=y
# CONFIG_GOOGLE_MEMCONSOLE_X86_LEGACY is not set
# CONFIG_GOOGLE_FRAMEBUFFER_COREBOOT is not set
CONFIG_GOOGLE_MEMCONSOLE_COREBOOT=y
CONFIG_GOOGLE_VPD=y

#
# Qualcomm firmware drivers
#
# end of Qualcomm firmware drivers

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_FWCTL is not set
CONFIG_GNSS=y
# CONFIG_GNSS_MTK_SERIAL is not set
# CONFIG_GNSS_SIRF_SERIAL is not set
# CONFIG_GNSS_UBX_SERIAL is not set
CONFIG_GNSS_USB=y
CONFIG_MTD=y
# CONFIG_MTD_TESTS is not set

#
# Partition parsers
#
# CONFIG_MTD_CMDLINE_PARTS is not set
# CONFIG_MTD_OF_PARTS is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
# end of Partition parsers

#
# User Modules And Translation Layers
#
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_BLOCK=y

#
# Note that in some cases UBI block is preferred. See MTD_UBI_BLOCK.
#
CONFIG_FTL=y
# CONFIG_NFTL is not set
# CONFIG_INFTL is not set
# CONFIG_RFD_FTL is not set
# CONFIG_SSFDC is not set
# CONFIG_SM_FTL is not set
# CONFIG_MTD_OOPS is not set
# CONFIG_MTD_SWAP is not set
# CONFIG_MTD_PARTITIONED_MASTER is not set

#
# RAM/ROM/Flash chip drivers
#
# CONFIG_MTD_CFI is not set
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
# end of RAM/ROM/Flash chip drivers

#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PLATRAM is not set
# end of Mapping drivers for chip access

#
# Self-contained MTD device drivers
#
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_DATAFLASH is not set
# CONFIG_MTD_MCHP23K256 is not set
# CONFIG_MTD_MCHP48L640 is not set
# CONFIG_MTD_SST25L is not set
CONFIG_MTD_SLRAM=y
CONFIG_MTD_PHRAM=y
CONFIG_MTD_MTDRAM=y
CONFIG_MTDRAM_TOTAL_SIZE=128
CONFIG_MTDRAM_ERASE_SIZE=4
CONFIG_MTD_BLOCK2MTD=y
# CONFIG_MTD_INTEL_DG is not set

#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOCG3 is not set
# end of Self-contained MTD device drivers

#
# NAND
#
# CONFIG_MTD_ONENAND is not set
# CONFIG_MTD_RAW_NAND is not set
# CONFIG_MTD_SPI_NAND is not set

#
# ECC engine support
#
# CONFIG_MTD_NAND_ECC_SW_HAMMING is not set
# CONFIG_MTD_NAND_ECC_SW_BCH is not set
# CONFIG_MTD_NAND_ECC_MXIC is not set
# end of ECC engine support
# end of NAND

#
# LPDDR & LPDDR2 PCM memory drivers
#
# CONFIG_MTD_LPDDR is not set
# end of LPDDR & LPDDR2 PCM memory drivers

# CONFIG_MTD_SPI_NOR is not set
CONFIG_MTD_UBI=y
CONFIG_MTD_UBI_WL_THRESHOLD=4096
CONFIG_MTD_UBI_BEB_LIMIT=20
# CONFIG_MTD_UBI_FASTMAP is not set
# CONFIG_MTD_UBI_GLUEBI is not set
# CONFIG_MTD_UBI_BLOCK is not set
# CONFIG_MTD_UBI_FAULT_INJECTION is not set
# CONFIG_MTD_UBI_NVMEM is not set
# CONFIG_MTD_HYPERBUS is not set
CONFIG_DTC=y
CONFIG_OF=y
# CONFIG_OF_UNITTEST is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_KOBJ=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_RESERVED_MEM=y
# CONFIG_OF_OVERLAY is not set
CONFIG_OF_NUMA=y
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT=y
# CONFIG_PARPORT_PC is not set
# CONFIG_PARPORT_1284 is not set
CONFIG_PARPORT_NOT_PC=y
CONFIG_PNP=y
CONFIG_PNP_DEBUG_MESSAGES=y

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_NULL_BLK=y
CONFIG_BLK_DEV_NULL_BLK_FAULT_INJECTION=y
# CONFIG_BLK_DEV_FD is not set
CONFIG_CDROM=y
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
CONFIG_ZRAM=y
# CONFIG_ZRAM_BACKEND_LZ4 is not set
# CONFIG_ZRAM_BACKEND_LZ4HC is not set
# CONFIG_ZRAM_BACKEND_ZSTD is not set
# CONFIG_ZRAM_BACKEND_DEFLATE is not set
# CONFIG_ZRAM_BACKEND_842 is not set
CONFIG_ZRAM_BACKEND_FORCE_LZO=y
CONFIG_ZRAM_BACKEND_LZO=y
# CONFIG_ZRAM_DEF_COMP_LZORLE is not set
CONFIG_ZRAM_DEF_COMP_LZO=y
CONFIG_ZRAM_DEF_COMP="lzo"
# CONFIG_ZRAM_WRITEBACK is not set
# CONFIG_ZRAM_TRACK_ENTRY_ACTIME is not set
# CONFIG_ZRAM_MEMORY_TRACKING is not set
# CONFIG_ZRAM_MULTI_COMP is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=16
# CONFIG_BLK_DEV_DRBD is not set
CONFIG_BLK_DEV_NBD=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
CONFIG_ATA_OVER_ETH=y
CONFIG_VIRTIO_BLK=y
# CONFIG_BLK_DEV_RBD is not set
CONFIG_BLK_DEV_UBLK=y
CONFIG_BLKDEV_UBLK_LEGACY_OPCODES=y
CONFIG_BLK_DEV_RNBD=y
CONFIG_BLK_DEV_RNBD_CLIENT=y
# CONFIG_BLK_DEV_ZONED_LOOP is not set

#
# NVME Support
#
CONFIG_NVME_CORE=y
CONFIG_BLK_DEV_NVME=y
CONFIG_NVME_MULTIPATH=y
# CONFIG_NVME_VERBOSE_ERRORS is not set
# CONFIG_NVME_HWMON is not set
CONFIG_NVME_FABRICS=y
CONFIG_NVME_RDMA=y
CONFIG_NVME_FC=y
CONFIG_NVME_TCP=y
# CONFIG_NVME_TCP_TLS is not set
# CONFIG_NVME_HOST_AUTH is not set
CONFIG_NVME_TARGET=y
# CONFIG_NVME_TARGET_DEBUGFS is not set
# CONFIG_NVME_TARGET_PASSTHRU is not set
CONFIG_NVME_TARGET_LOOP=y
CONFIG_NVME_TARGET_RDMA=y
CONFIG_NVME_TARGET_FC=y
CONFIG_NVME_TARGET_FCLOOP=y
CONFIG_NVME_TARGET_TCP=y
# CONFIG_NVME_TARGET_TCP_TLS is not set
# CONFIG_NVME_TARGET_AUTH is not set
# CONFIG_NVME_TARGET_PCI_EPF is not set
# end of NVME Support

#
# Misc devices
#
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_RPMB is not set
# CONFIG_TI_FPC202 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_VMWARE_BALLOON is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_DW_XDATA_PCIE is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_XILINX_SDFEC is not set
CONFIG_MISC_RTSX=y
# CONFIG_HISI_HIKEY_USB is not set
# CONFIG_OPEN_DICE is not set
# CONFIG_NTSYNC is not set
# CONFIG_VCPU_STALL_DETECTOR is not set
# CONFIG_NSM is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_AT25 is not set
# CONFIG_EEPROM_MAX6875 is not set
CONFIG_EEPROM_93CX6=y
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set
# CONFIG_EEPROM_M24LR is not set
# end of EEPROM support

# CONFIG_CB710_CORE is not set
# CONFIG_SENSORS_LIS3_I2C is not set
# CONFIG_ALTERA_STAPL is not set
CONFIG_INTEL_MEI=y
CONFIG_INTEL_MEI_ME=y
# CONFIG_INTEL_MEI_TXE is not set
# CONFIG_INTEL_MEI_GSC is not set
# CONFIG_INTEL_MEI_CSC is not set
# CONFIG_INTEL_MEI_VSC_HW is not set
# CONFIG_INTEL_MEI_HDCP is not set
# CONFIG_INTEL_MEI_PXP is not set
# CONFIG_INTEL_MEI_GSC_PROXY is not set
CONFIG_VMWARE_VMCI=y
# CONFIG_GENWQE is not set
# CONFIG_BCM_VK is not set
# CONFIG_MISC_ALCOR_PCI is not set
# CONFIG_MISC_RTSX_PCI is not set
CONFIG_MISC_RTSX_USB=y
# CONFIG_UACCE is not set
# CONFIG_PVPANIC is not set
# CONFIG_GP_PCI1XXXX is not set
# CONFIG_KEBA_CP500 is not set
# CONFIG_MISC_RP1 is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=y
CONFIG_SCSI_COMMON=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
CONFIG_SCSI_FC_ATTRS=y
CONFIG_SCSI_ISCSI_ATTRS=y
CONFIG_SCSI_SAS_ATTRS=y
CONFIG_SCSI_SAS_LIBSAS=y
CONFIG_SCSI_SAS_ATA=y
# CONFIG_SCSI_SAS_HOST_SMP is not set
CONFIG_SCSI_SRP_ATTRS=y
# end of SCSI Transports

CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
CONFIG_SCSI_HPSA=y
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPI3MR is not set
# CONFIG_SCSI_SMARTPQI is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_MYRB is not set
# CONFIG_SCSI_MYRS is not set
# CONFIG_VMWARE_PVSCSI is not set
# CONFIG_LIBFC is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FDOMAIN_PCI is not set
# CONFIG_SCSI_ISCI is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_EFCT is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_BFA_FC is not set
CONFIG_SCSI_VIRTIO=y
# CONFIG_SCSI_CHELSIO_FCOE is not set
# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
# CONFIG_SCSI_DH is not set
# end of SCSI device support

CONFIG_ATA=y
CONFIG_SATA_HOST=y
CONFIG_PATA_TIMINGS=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_FORCE=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=y
CONFIG_SATA_MOBILE_LPM_POLICY=3
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_AHCI_DWC is not set
# CONFIG_AHCI_CEVA is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=y
# CONFIG_SATA_DWC is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
CONFIG_PATA_AMD=y
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
CONFIG_PATA_OLDPIIX=y
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
CONFIG_PATA_SCH=y
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_PCMCIA is not set
# CONFIG_PATA_OF_PLATFORM is not set
# CONFIG_PATA_RZ1000 is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_PATA_ACPI is not set
CONFIG_ATA_GENERIC=y
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_BITMAP=y
# CONFIG_MD_LLBITMAP is not set
CONFIG_MD_AUTODETECT=y
CONFIG_MD_BITMAP_FILE=y
# CONFIG_MD_LINEAR is not set
CONFIG_MD_RAID0=y
CONFIG_MD_RAID1=y
CONFIG_MD_RAID10=y
CONFIG_MD_RAID456=y
# CONFIG_MD_CLUSTER is not set
CONFIG_BCACHE=y
# CONFIG_BCACHE_DEBUG is not set
# CONFIG_BCACHE_ASYNC_REGISTRATION is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
CONFIG_DM_BUFIO=y
# CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set
CONFIG_DM_BIO_PRISON=y
CONFIG_DM_PERSISTENT_DATA=y
# CONFIG_DM_UNSTRIPED is not set
CONFIG_DM_CRYPT=y
# CONFIG_DM_INLINECRYPT is not set
CONFIG_DM_SNAPSHOT=y
CONFIG_DM_THIN_PROVISIONING=y
CONFIG_DM_CACHE=y
CONFIG_DM_CACHE_SMQ=y
CONFIG_DM_WRITECACHE=y
# CONFIG_DM_EBS is not set
# CONFIG_DM_ERA is not set
CONFIG_DM_CLONE=y
CONFIG_DM_MIRROR=y
# CONFIG_DM_LOG_USERSPACE is not set
CONFIG_DM_RAID=y
CONFIG_DM_ZERO=y
CONFIG_DM_MULTIPATH=y
CONFIG_DM_MULTIPATH_QL=y
CONFIG_DM_MULTIPATH_ST=y
# CONFIG_DM_MULTIPATH_HST is not set
# CONFIG_DM_MULTIPATH_IOA is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_DUST is not set
# CONFIG_DM_INIT is not set
CONFIG_DM_UEVENT=y
CONFIG_DM_FLAKEY=y
CONFIG_DM_VERITY=y
# CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG is not set
CONFIG_DM_VERITY_FEC=y
# CONFIG_DM_SWITCH is not set
# CONFIG_DM_LOG_WRITES is not set
CONFIG_DM_INTEGRITY=y
CONFIG_DM_ZONED=y
CONFIG_DM_AUDIT=y
# CONFIG_DM_VDO is not set
# CONFIG_DM_PCACHE is not set
CONFIG_TARGET_CORE=y
# CONFIG_TCM_IBLOCK is not set
# CONFIG_TCM_FILEIO is not set
# CONFIG_TCM_PSCSI is not set
# CONFIG_LOOPBACK_TARGET is not set
# CONFIG_ISCSI_TARGET is not set
# CONFIG_SBP_TARGET is not set
# CONFIG_REMOTE_TARGET is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=y
CONFIG_FIREWIRE_OHCI=y
CONFIG_FIREWIRE_SBP2=y
CONFIG_FIREWIRE_NET=y
# CONFIG_FIREWIRE_NOSY is not set
# end of IEEE 1394 (FireWire) support

# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
CONFIG_BONDING=y
CONFIG_DUMMY=y
CONFIG_WIREGUARD=y
# CONFIG_WIREGUARD_DEBUG is not set
# CONFIG_OVPN is not set
CONFIG_EQUALIZER=y
CONFIG_NET_FC=y
CONFIG_IFB=y
CONFIG_NET_TEAM=y
CONFIG_NET_TEAM_MODE_BROADCAST=y
CONFIG_NET_TEAM_MODE_ROUNDROBIN=y
CONFIG_NET_TEAM_MODE_RANDOM=y
CONFIG_NET_TEAM_MODE_ACTIVEBACKUP=y
CONFIG_NET_TEAM_MODE_LOADBALANCE=y
CONFIG_MACVLAN=y
CONFIG_MACVTAP=y
CONFIG_IPVLAN_L3S=y
CONFIG_IPVLAN=y
CONFIG_IPVTAP=y
CONFIG_VXLAN=y
CONFIG_GENEVE=y
CONFIG_BAREUDP=y
CONFIG_GTP=y
# CONFIG_PFCP is not set
# CONFIG_AMT is not set
CONFIG_MACSEC=y
CONFIG_NETCONSOLE=y
# CONFIG_NETCONSOLE_DYNAMIC is not set
# CONFIG_NETCONSOLE_EXTENDED_LOG is not set
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_TUN=y
CONFIG_TAP=y
CONFIG_TUN_VNET_CROSS_LE=y
CONFIG_VETH=y
CONFIG_VIRTIO_NET=y
CONFIG_NLMON=y
# CONFIG_NETKIT is not set
CONFIG_NET_VRF=y
CONFIG_VSOCKMON=y
# CONFIG_MHI_NET is not set
# CONFIG_ARCNET is not set
CONFIG_ATM_DRIVERS=y
# CONFIG_ATM_SOLOS is not set

#
# Distributed Switch Architecture drivers
#
# CONFIG_B53 is not set
# CONFIG_NET_DSA_BCM_SF2 is not set
# CONFIG_NET_DSA_LOOP is not set
# CONFIG_NET_DSA_HIRSCHMANN_HELLCREEK is not set
# CONFIG_NET_DSA_LANTIQ_GSWIP is not set
# CONFIG_NET_DSA_MXL_GSW1XX is not set
# CONFIG_NET_DSA_MT7530 is not set
# CONFIG_NET_DSA_MV88E6060 is not set
# CONFIG_NET_DSA_MICROCHIP_KSZ_COMMON is not set
# CONFIG_NET_DSA_MV88E6XXX is not set
# CONFIG_NET_DSA_MXL862 is not set
# CONFIG_NET_DSA_AR9331 is not set
# CONFIG_NET_DSA_QCA8K is not set
# CONFIG_NET_DSA_SJA1105 is not set
# CONFIG_NET_DSA_XRS700X_I2C is not set
# CONFIG_NET_DSA_XRS700X_MDIO is not set
# CONFIG_NET_DSA_REALTEK is not set
# CONFIG_NET_DSA_KS8995 is not set
# CONFIG_NET_DSA_SMSC_LAN9303_I2C is not set
# CONFIG_NET_DSA_SMSC_LAN9303_MDIO is not set
# CONFIG_NET_DSA_VITESSE_VSC73XX_SPI is not set
# CONFIG_NET_DSA_VITESSE_VSC73XX_PLATFORM is not set
# CONFIG_NET_DSA_YT921X is not set
# end of Distributed Switch Architecture drivers

CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALACRITECH is not set
CONFIG_NET_VENDOR_ALIBABA=y
# CONFIG_ALIBABA_EEA is not set
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMAZON=y
# CONFIG_ENA_ETHERNET is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
CONFIG_NET_VENDOR_ASIX=y
# CONFIG_SPI_AX88796C is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_CX_ECAT is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_CADENCE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
# CONFIG_NET_VENDOR_CORTINA is not set
CONFIG_NET_VENDOR_DAVICOM=y
# CONFIG_DM9051 is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
CONFIG_NET_VENDOR_ENGLEDER=y
# CONFIG_TSNEP is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
CONFIG_NET_VENDOR_FUNGIBLE=y
# CONFIG_FUN_ETH is not set
CONFIG_NET_VENDOR_GOOGLE=y
CONFIG_GVE=y
CONFIG_NET_VENDOR_HISILICON=y
# CONFIG_HIBMCGE is not set
# CONFIG_NET_VENDOR_HUAWEI is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
CONFIG_E100=y
CONFIG_E1000=y
CONFIG_E1000E=y
CONFIG_E1000E_HWTS=y
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_IXGBE is not set
# CONFIG_IXGBEVF is not set
# CONFIG_I40E is not set
# CONFIG_I40EVF is not set
# CONFIG_ICE is not set
# CONFIG_FM10K is not set
# CONFIG_IGC is not set
# CONFIG_IDPF is not set
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_ADI is not set
CONFIG_NET_VENDOR_LITEX=y
# CONFIG_LITEX_LITEETH is not set
# CONFIG_NET_VENDOR_MARVELL is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
CONFIG_MLX4_CORE=y
# CONFIG_MLX4_DEBUG is not set
# CONFIG_MLX4_CORE_GEN2 is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
# CONFIG_MLXFW is not set
CONFIG_NET_VENDOR_META=y
# CONFIG_FBNIC is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MICROSEMI is not set
CONFIG_NET_VENDOR_MICROSOFT=y
CONFIG_NET_VENDOR_MUCSE=y
# CONFIG_MGBE is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NI is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_VENDOR_PENSANDO is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RENESAS is not set
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_SOCIONEXT is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_SYNOPSYS is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
CONFIG_NET_VENDOR_VERTEXCOM=y
# CONFIG_MSE102X is not set
# CONFIG_NET_VENDOR_VIA is not set
CONFIG_NET_VENDOR_WANGXUN=y
# CONFIG_NGBE is not set
# CONFIG_TXGBE is not set
# CONFIG_TXGBEVF is not set
# CONFIG_NGBEVF is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_NET_VENDOR_XILINX is not set
# CONFIG_NET_VENDOR_XIRCOM is not set
CONFIG_FDDI=y
# CONFIG_DEFXX is not set
# CONFIG_SKFP is not set
CONFIG_PHYLINK=y
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
CONFIG_PHY_PACKAGE=y
# CONFIG_LED_TRIGGER_PHY is not set
CONFIG_PHYLIB_LEDS=y
CONFIG_FIXED_PHY=y
# CONFIG_SFP is not set

#
# MII PHY device drivers
#
# CONFIG_AS21XXX_PHY is not set
# CONFIG_AIR_AN8801_PHY is not set
# CONFIG_AIR_EN8811H_PHY is not set
# CONFIG_AMD_PHY is not set
# CONFIG_ADIN_PHY is not set
# CONFIG_ADIN1100_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
CONFIG_AX88796B_PHY=y
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM54140_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM84881_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_CORTINA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
# CONFIG_MARVELL_88Q2XXX_PHY is not set
# CONFIG_MARVELL_88X2222_PHY is not set
# CONFIG_MAXLINEAR_GPHY is not set
# CONFIG_MAXLINEAR_86110_PHY is not set
# CONFIG_MEDIATEK_GE_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MICROCHIP_T1S_PHY is not set
CONFIG_MICROCHIP_PHY=y
# CONFIG_MICROCHIP_T1_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_MOTORCOMM_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_NXP_CBTX_PHY is not set
# CONFIG_NXP_C45_TJA11XX_PHY is not set
# CONFIG_NXP_TJA11XX_PHY is not set
# CONFIG_NCN26000_PHY is not set
# CONFIG_AT803X_PHY is not set
# CONFIG_QCA83XX_PHY is not set
# CONFIG_QCA808X_PHY is not set
# CONFIG_QCA807X_PHY is not set
# CONFIG_QSEMI_PHY is not set
CONFIG_REALTEK_PHY=y
# CONFIG_REALTEK_PHY_HWMON is not set
# CONFIG_RENESAS_PHY is not set
# CONFIG_ROCKCHIP_PHY is not set
CONFIG_SMSC_PHY=y
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_DP83822_PHY is not set
# CONFIG_DP83TC811_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_DP83869_PHY is not set
# CONFIG_DP83TD510_PHY is not set
# CONFIG_DP83TG720_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_PSE_CONTROLLER is not set
CONFIG_CAN_DEV=y
CONFIG_CAN_VCAN=y
CONFIG_CAN_VXCAN=y
CONFIG_CAN_NETLINK=y
CONFIG_CAN_CALC_BITTIMING=y
CONFIG_CAN_RX_OFFLOAD=y
# CONFIG_CAN_CAN327 is not set
# CONFIG_CAN_DUMMY is not set
# CONFIG_CAN_FLEXCAN is not set
# CONFIG_CAN_GRCAN is not set
# CONFIG_CAN_KVASER_PCIEFD is not set
CONFIG_CAN_SLCAN=y
# CONFIG_CAN_VIRTIO_CAN is not set
# CONFIG_CAN_C_CAN is not set
# CONFIG_CAN_CC770 is not set
# CONFIG_CAN_CTUCANFD_PCI is not set
# CONFIG_CAN_CTUCANFD_PLATFORM is not set
# CONFIG_CAN_ESD_402_PCI is not set
CONFIG_CAN_IFI_CANFD=y
# CONFIG_CAN_M_CAN is not set
# CONFIG_CAN_PEAK_PCIEFD is not set
# CONFIG_CAN_SJA1000 is not set
# CONFIG_CAN_SOFTING is not set

#
# CAN SPI interfaces
#
# CONFIG_CAN_HI311X is not set
# CONFIG_CAN_MCP251X is not set
# CONFIG_CAN_MCP251XFD is not set
# end of CAN SPI interfaces

#
# CAN USB interfaces
#
CONFIG_CAN_8DEV_USB=y
CONFIG_CAN_EMS_USB=y
CONFIG_CAN_ESD_USB=y
CONFIG_CAN_ETAS_ES58X=y
CONFIG_CAN_F81604=y
CONFIG_CAN_GS_USB=y
CONFIG_CAN_KVASER_USB=y
CONFIG_CAN_MCBA_USB=y
CONFIG_CAN_PEAK_USB=y
CONFIG_CAN_UCAN=y
# end of CAN USB interfaces

# CONFIG_CAN_DEBUG_DEVICES is not set

#
# MCTP Device Drivers
#
# CONFIG_MCTP_SERIAL is not set
# CONFIG_MCTP_TRANSPORT_I2C is not set
# CONFIG_MCTP_TRANSPORT_USB is not set
# end of MCTP Device Drivers

CONFIG_FWNODE_MDIO=y
CONFIG_OF_MDIO=y
CONFIG_ACPI_MDIO=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MDIO_HISI_FEMAC is not set
CONFIG_MDIO_MVUSB=y
# CONFIG_MDIO_MSCC_MIIM is not set
# CONFIG_MDIO_OCTEON is not set
# CONFIG_MDIO_IPQ4019 is not set
# CONFIG_MDIO_IPQ8064 is not set
# CONFIG_MDIO_THUNDER is not set

#
# MDIO Multiplexers
#
# CONFIG_MDIO_BUS_MUX_GPIO is not set
# CONFIG_MDIO_BUS_MUX_MULTIPLEXER is not set
# CONFIG_MDIO_BUS_MUX_MMIOREG is not set

#
# PCS device drivers
#
# CONFIG_PCS_XPCS is not set
# end of PCS device drivers

# CONFIG_PLIP is not set
CONFIG_PPP=y
CONFIG_PPP_BSDCOMP=y
CONFIG_PPP_DEFLATE=y
CONFIG_PPP_FILTER=y
CONFIG_PPP_MPPE=y
CONFIG_PPP_MULTILINK=y
CONFIG_PPPOATM=y
CONFIG_PPPOX=y
CONFIG_PPPOE=y
CONFIG_PPPOE_HASH_BITS_1=y
# CONFIG_PPPOE_HASH_BITS_2 is not set
# CONFIG_PPPOE_HASH_BITS_4 is not set
# CONFIG_PPPOE_HASH_BITS_8 is not set
CONFIG_PPPOE_HASH_BITS=1
CONFIG_PPTP=y
CONFIG_PPPOL2TP=y
CONFIG_PPP_ASYNC=y
CONFIG_PPP_SYNC_TTY=y
CONFIG_SLIP=y
CONFIG_SLHC=y
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y
CONFIG_USB_NET_DRIVERS=y
CONFIG_USB_CATC=y
CONFIG_USB_KAWETH=y
CONFIG_USB_PEGASUS=y
CONFIG_USB_RTL8150=y
CONFIG_USB_RTL8152=y
CONFIG_USB_LAN78XX=y
CONFIG_USB_USBNET=y
CONFIG_USB_NET_AX8817X=y
CONFIG_USB_NET_AX88179_178A=y
CONFIG_USB_NET_CDCETHER=y
CONFIG_USB_NET_CDC_EEM=y
CONFIG_USB_NET_CDC_NCM=y
CONFIG_USB_NET_HUAWEI_CDC_NCM=y
CONFIG_USB_NET_CDC_MBIM=y
CONFIG_USB_NET_DM9601=y
CONFIG_USB_NET_SR9700=y
CONFIG_USB_NET_SR9800=y
CONFIG_USB_NET_SMSC75XX=y
CONFIG_USB_NET_SMSC95XX=y
CONFIG_USB_NET_GL620A=y
CONFIG_USB_NET_NET1080=y
CONFIG_USB_NET_PLUSB=y
CONFIG_USB_NET_MCS7830=y
CONFIG_USB_NET_RNDIS_HOST=y
CONFIG_USB_NET_CDC_SUBSET_ENABLE=y
CONFIG_USB_NET_CDC_SUBSET=y
CONFIG_USB_ALI_M5632=y
CONFIG_USB_AN2720=y
CONFIG_USB_BELKIN=y
CONFIG_USB_ARMLINUX=y
CONFIG_USB_EPSON2888=y
CONFIG_USB_KC2190=y
CONFIG_USB_NET_ZAURUS=y
CONFIG_USB_NET_CX82310_ETH=y
CONFIG_USB_NET_KALMIA=y
CONFIG_USB_NET_QMI_WWAN=y
CONFIG_USB_HSO=y
CONFIG_USB_NET_INT51X1=y
CONFIG_USB_CDC_PHONET=y
CONFIG_USB_IPHETH=y
CONFIG_USB_SIERRA_NET=y
CONFIG_USB_VL600=y
CONFIG_USB_NET_CH9200=y
CONFIG_USB_NET_AQC111=y
CONFIG_USB_RTL8153_ECM=y
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
# CONFIG_ADM8211 is not set
CONFIG_ATH_COMMON=y
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
# CONFIG_ATH5K is not set
# CONFIG_ATH5K_PCI is not set
CONFIG_ATH9K_HW=y
CONFIG_ATH9K_COMMON=y
CONFIG_ATH9K_COMMON_DEBUG=y
CONFIG_ATH9K_BTCOEX_SUPPORT=y
CONFIG_ATH9K=y
CONFIG_ATH9K_PCI=y
CONFIG_ATH9K_AHB=y
CONFIG_ATH9K_DEBUGFS=y
# CONFIG_ATH9K_STATION_STATISTICS is not set
CONFIG_ATH9K_DYNACK=y
# CONFIG_ATH9K_WOW is not set
CONFIG_ATH9K_RFKILL=y
CONFIG_ATH9K_CHANNEL_CONTEXT=y
CONFIG_ATH9K_PCOEM=y
# CONFIG_ATH9K_PCI_NO_EEPROM is not set
CONFIG_ATH9K_HTC=y
CONFIG_ATH9K_HTC_DEBUGFS=y
# CONFIG_ATH9K_HWRNG is not set
CONFIG_ATH9K_COMMON_SPECTRAL=y
CONFIG_CARL9170=y
CONFIG_CARL9170_LEDS=y
# CONFIG_CARL9170_DEBUGFS is not set
CONFIG_CARL9170_WPC=y
CONFIG_CARL9170_HWRNG=y
CONFIG_ATH6KL=y
# CONFIG_ATH6KL_SDIO is not set
CONFIG_ATH6KL_USB=y
# CONFIG_ATH6KL_DEBUG is not set
# CONFIG_ATH6KL_TRACING is not set
CONFIG_AR5523=y
# CONFIG_WIL6210 is not set
CONFIG_ATH10K=y
CONFIG_ATH10K_CE=y
CONFIG_ATH10K_PCI=y
# CONFIG_ATH10K_AHB is not set
# CONFIG_ATH10K_SDIO is not set
CONFIG_ATH10K_USB=y
# CONFIG_ATH10K_DEBUG is not set
# CONFIG_ATH10K_DEBUGFS is not set
CONFIG_ATH10K_LEDS=y
# CONFIG_ATH10K_TRACING is not set
# CONFIG_WCN36XX is not set
CONFIG_ATH11K=y
# CONFIG_ATH11K_PCI is not set
# CONFIG_ATH11K_DEBUG is not set
# CONFIG_ATH11K_DEBUGFS is not set
# CONFIG_ATH11K_TRACING is not set
# CONFIG_ATH12K is not set
# CONFIG_WLAN_VENDOR_ATMEL is not set
# CONFIG_WLAN_VENDOR_BROADCOM is not set
# CONFIG_WLAN_VENDOR_INTEL is not set
# CONFIG_WLAN_VENDOR_INTERSIL is not set
# CONFIG_WLAN_VENDOR_MARVELL is not set
# CONFIG_WLAN_VENDOR_MEDIATEK is not set
# CONFIG_WLAN_VENDOR_MICROCHIP is not set
CONFIG_WLAN_VENDOR_PURELIFI=y
CONFIG_PLFXLC=y
# CONFIG_WLAN_VENDOR_RALINK is not set
# CONFIG_WLAN_VENDOR_REALTEK is not set
# CONFIG_WLAN_VENDOR_RSI is not set
CONFIG_WLAN_VENDOR_SILABS=y
# CONFIG_WFX is not set
# CONFIG_WLAN_VENDOR_ST is not set
# CONFIG_WLAN_VENDOR_TI is not set
# CONFIG_WLAN_VENDOR_ZYDAS is not set
# CONFIG_WLAN_VENDOR_QUANTENNA is not set
CONFIG_MAC80211_HWSIM=y
CONFIG_VIRT_WIFI=y
CONFIG_WAN=y
CONFIG_HDLC=y
CONFIG_HDLC_RAW=y
CONFIG_HDLC_RAW_ETH=y
CONFIG_HDLC_CISCO=y
CONFIG_HDLC_FR=y
CONFIG_HDLC_PPP=y
CONFIG_HDLC_X25=y
# CONFIG_FRAMER is not set
# CONFIG_PCI200SYN is not set
# CONFIG_WANXL is not set
# CONFIG_PC300TOO is not set
# CONFIG_FARSYNC is not set
CONFIG_LAPBETHER=y
CONFIG_IEEE802154_DRIVERS=y
# CONFIG_IEEE802154_FAKELB is not set
# CONFIG_IEEE802154_AT86RF230 is not set
# CONFIG_IEEE802154_MRF24J40 is not set
# CONFIG_IEEE802154_CC2520 is not set
CONFIG_IEEE802154_ATUSB=y
# CONFIG_IEEE802154_ADF7242 is not set
# CONFIG_IEEE802154_CA8210 is not set
# CONFIG_IEEE802154_MCR20A is not set
CONFIG_IEEE802154_HWSIM=y

#
# Wireless WAN
#
CONFIG_WWAN=y
# CONFIG_WWAN_DEBUGFS is not set
# CONFIG_WWAN_HWSIM is not set
CONFIG_MHI_WWAN_CTRL=y
# CONFIG_MHI_WWAN_MBIM is not set
# CONFIG_IOSM is not set
# CONFIG_MTK_T7XX is not set
# end of Wireless WAN

CONFIG_VMXNET3=y
# CONFIG_FUJITSU_ES is not set
CONFIG_USB4_NET=y
CONFIG_NETDEVSIM=y
CONFIG_NET_FAILOVER=y

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_SPARSEKMAP=y
# CONFIG_INPUT_MATRIXKMAP is not set
CONFIG_INPUT_VIVALDIFMAP=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=y
CONFIG_INPUT_EVDEV=y

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADC is not set
# CONFIG_KEYBOARD_ADP5588 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1050 is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_CHARLIEPLEX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_PINEPHONE is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_OMAP4 is not set
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
# CONFIG_KEYBOARD_TWL4030 is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CAP11XX is not set
# CONFIG_KEYBOARD_BCM is not set
# CONFIG_KEYBOARD_CYPRESS_SF is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
# CONFIG_MOUSE_PS2_SENTELIC is not set
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
# CONFIG_MOUSE_PS2_VMMOUSE is not set
CONFIG_MOUSE_PS2_SMBUS=y
# CONFIG_MOUSE_SERIAL is not set
CONFIG_MOUSE_APPLETOUCH=y
CONFIG_MOUSE_BCM5974=y
# CONFIG_MOUSE_CYAPA is not set
# CONFIG_MOUSE_ELAN_I2C is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_GPIO is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
CONFIG_MOUSE_SYNAPTICS_USB=y
CONFIG_INPUT_JOYSTICK=y
# CONFIG_JOYSTICK_ANALOG is not set
# CONFIG_JOYSTICK_A3D is not set
# CONFIG_JOYSTICK_ADC is not set
# CONFIG_JOYSTICK_ADI is not set
# CONFIG_JOYSTICK_COBRA is not set
# CONFIG_JOYSTICK_GF2K is not set
# CONFIG_JOYSTICK_GRIP is not set
# CONFIG_JOYSTICK_GRIP_MP is not set
# CONFIG_JOYSTICK_GUILLEMOT is not set
# CONFIG_JOYSTICK_INTERACT is not set
# CONFIG_JOYSTICK_SIDEWINDER is not set
# CONFIG_JOYSTICK_TMDC is not set
CONFIG_JOYSTICK_IFORCE=y
CONFIG_JOYSTICK_IFORCE_USB=y
# CONFIG_JOYSTICK_IFORCE_232 is not set
# CONFIG_JOYSTICK_WARRIOR is not set
# CONFIG_JOYSTICK_MAGELLAN is not set
# CONFIG_JOYSTICK_SPACEORB is not set
# CONFIG_JOYSTICK_SPACEBALL is not set
# CONFIG_JOYSTICK_STINGER is not set
# CONFIG_JOYSTICK_TWIDJOY is not set
# CONFIG_JOYSTICK_ZHENHUA is not set
# CONFIG_JOYSTICK_DB9 is not set
# CONFIG_JOYSTICK_GAMECON is not set
# CONFIG_JOYSTICK_TURBOGRAFX is not set
# CONFIG_JOYSTICK_AS5011 is not set
# CONFIG_JOYSTICK_JOYDUMP is not set
CONFIG_JOYSTICK_XPAD=y
CONFIG_JOYSTICK_XPAD_FF=y
CONFIG_JOYSTICK_XPAD_LEDS=y
# CONFIG_JOYSTICK_WALKERA0701 is not set
# CONFIG_JOYSTICK_PSXPAD_SPI is not set
CONFIG_JOYSTICK_PXRC=y
# CONFIG_JOYSTICK_QWIIC is not set
# CONFIG_JOYSTICK_FSIA6B is not set
# CONFIG_JOYSTICK_SENSEHAT is not set
# CONFIG_JOYSTICK_SEESAW is not set
CONFIG_INPUT_TABLET=y
CONFIG_TABLET_USB_ACECAD=y
CONFIG_TABLET_USB_AIPTEK=y
CONFIG_TABLET_USB_HANWANG=y
CONFIG_TABLET_USB_KBTAB=y
CONFIG_TABLET_USB_PEGASUS=y
# CONFIG_TABLET_SERIAL_WACOM4 is not set
CONFIG_INPUT_TOUCHSCREEN=y
# CONFIG_TOUCHSCREEN_ADS7846 is not set
# CONFIG_TOUCHSCREEN_AD7877 is not set
# CONFIG_TOUCHSCREEN_AD7879 is not set
# CONFIG_TOUCHSCREEN_ADC is not set
# CONFIG_TOUCHSCREEN_AR1021_I2C is not set
# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
# CONFIG_TOUCHSCREEN_BU21013 is not set
# CONFIG_TOUCHSCREEN_BU21029 is not set
# CONFIG_TOUCHSCREEN_CHIPONE_ICN8318 is not set
# CONFIG_TOUCHSCREEN_CHIPONE_ICN8505 is not set
# CONFIG_TOUCHSCREEN_CY8CTMA140 is not set
# CONFIG_TOUCHSCREEN_CY8CTMG110 is not set
# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
# CONFIG_TOUCHSCREEN_CYTTSP5 is not set
# CONFIG_TOUCHSCREEN_DYNAPRO is not set
# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set
# CONFIG_TOUCHSCREEN_EETI is not set
# CONFIG_TOUCHSCREEN_EGALAX is not set
# CONFIG_TOUCHSCREEN_EGALAX_SERIAL is not set
# CONFIG_TOUCHSCREEN_EXC3000 is not set
# CONFIG_TOUCHSCREEN_FUJITSU is not set
# CONFIG_TOUCHSCREEN_GOODIX is not set
# CONFIG_TOUCHSCREEN_GOODIX_BERLIN_I2C is not set
# CONFIG_TOUCHSCREEN_GOODIX_BERLIN_SPI is not set
# CONFIG_TOUCHSCREEN_HIDEEP is not set
# CONFIG_TOUCHSCREEN_HIMAX_HX852X is not set
# CONFIG_TOUCHSCREEN_HYCON_HY46XX is not set
# CONFIG_TOUCHSCREEN_HYNITRON_CSTXXX is not set
# CONFIG_TOUCHSCREEN_HYNITRON_CST816X is not set
# CONFIG_TOUCHSCREEN_ILI210X is not set
# CONFIG_TOUCHSCREEN_ILITEK is not set
# CONFIG_TOUCHSCREEN_S6SY761 is not set
# CONFIG_TOUCHSCREEN_GUNZE is not set
# CONFIG_TOUCHSCREEN_EKTF2127 is not set
# CONFIG_TOUCHSCREEN_ELAN is not set
# CONFIG_TOUCHSCREEN_ELO is not set
# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
# CONFIG_TOUCHSCREEN_WACOM_W9000 is not set
# CONFIG_TOUCHSCREEN_MAX11801 is not set
# CONFIG_TOUCHSCREEN_MMS114 is not set
# CONFIG_TOUCHSCREEN_MELFAS_MIP4 is not set
# CONFIG_TOUCHSCREEN_MSG2638 is not set
# CONFIG_TOUCHSCREEN_MTOUCH is not set
# CONFIG_TOUCHSCREEN_NOVATEK_NVT_TS is not set
# CONFIG_TOUCHSCREEN_IMAGIS is not set
# CONFIG_TOUCHSCREEN_IMX6UL_TSC is not set
# CONFIG_TOUCHSCREEN_INEXIO is not set
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
# CONFIG_TOUCHSCREEN_PIXCIR is not set
# CONFIG_TOUCHSCREEN_WDT87XX_I2C is not set
CONFIG_TOUCHSCREEN_USB_COMPOSITE=y
CONFIG_TOUCHSCREEN_USB_EGALAX=y
CONFIG_TOUCHSCREEN_USB_PANJIT=y
CONFIG_TOUCHSCREEN_USB_3M=y
CONFIG_TOUCHSCREEN_USB_ITM=y
CONFIG_TOUCHSCREEN_USB_ETURBO=y
CONFIG_TOUCHSCREEN_USB_GUNZE=y
CONFIG_TOUCHSCREEN_USB_DMC_TSC10=y
CONFIG_TOUCHSCREEN_USB_IRTOUCH=y
CONFIG_TOUCHSCREEN_USB_IDEALTEK=y
CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH=y
CONFIG_TOUCHSCREEN_USB_GOTOP=y
CONFIG_TOUCHSCREEN_USB_JASTEC=y
CONFIG_TOUCHSCREEN_USB_ELO=y
CONFIG_TOUCHSCREEN_USB_E2I=y
CONFIG_TOUCHSCREEN_USB_ZYTRONIC=y
CONFIG_TOUCHSCREEN_USB_ETT_TC45USB=y
CONFIG_TOUCHSCREEN_USB_NEXIO=y
CONFIG_TOUCHSCREEN_USB_EASYTOUCH=y
# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
# CONFIG_TOUCHSCREEN_TSC2004 is not set
# CONFIG_TOUCHSCREEN_TSC2005 is not set
# CONFIG_TOUCHSCREEN_TSC2007 is not set
# CONFIG_TOUCHSCREEN_RM_TS is not set
# CONFIG_TOUCHSCREEN_SILEAD is not set
# CONFIG_TOUCHSCREEN_SIS_I2C is not set
# CONFIG_TOUCHSCREEN_ST1232 is not set
# CONFIG_TOUCHSCREEN_STMFTS is not set
CONFIG_TOUCHSCREEN_SUR40=y
# CONFIG_TOUCHSCREEN_SURFACE3_SPI is not set
# CONFIG_TOUCHSCREEN_SX8654 is not set
# CONFIG_TOUCHSCREEN_TPS6507X is not set
# CONFIG_TOUCHSCREEN_ZET6223 is not set
# CONFIG_TOUCHSCREEN_ZFORCE is not set
# CONFIG_TOUCHSCREEN_COLIBRI_VF50 is not set
# CONFIG_TOUCHSCREEN_ROHM_BU21023 is not set
# CONFIG_TOUCHSCREEN_IQS5XX is not set
# CONFIG_TOUCHSCREEN_IQS7211 is not set
# CONFIG_TOUCHSCREEN_ZINITIX is not set
# CONFIG_TOUCHSCREEN_HIMAX_HX83112B is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_ATMEL_CAPTOUCH is not set
# CONFIG_INPUT_AW86927 is not set
# CONFIG_INPUT_BMA150 is not set
# CONFIG_INPUT_E3X0_BUTTON is not set
# CONFIG_INPUT_PCSPKR is not set
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_APANEL is not set
# CONFIG_INPUT_GPIO_BEEPER is not set
# CONFIG_INPUT_GPIO_DECODER is not set
# CONFIG_INPUT_GPIO_VIBRA is not set
# CONFIG_INPUT_ATLAS_BTNS is not set
CONFIG_INPUT_ATI_REMOTE2=y
CONFIG_INPUT_KEYSPAN_REMOTE=y
# CONFIG_INPUT_KXTJ9 is not set
CONFIG_INPUT_POWERMATE=y
CONFIG_INPUT_YEALINK=y
CONFIG_INPUT_CM109=y
# CONFIG_INPUT_REGULATOR_HAPTIC is not set
# CONFIG_INPUT_RETU_PWRBUTTON is not set
# CONFIG_INPUT_TWL4030_PWRBUTTON is not set
# CONFIG_INPUT_TWL4030_VIBRA is not set
CONFIG_INPUT_UINPUT=y
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
# CONFIG_INPUT_DA7280_HAPTICS is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_IBM_PANEL is not set
CONFIG_INPUT_IMS_PCU=y
# CONFIG_INPUT_IQS269A is not set
# CONFIG_INPUT_IQS626A is not set
# CONFIG_INPUT_IQS7222 is not set
# CONFIG_INPUT_CMA3000 is not set
# CONFIG_INPUT_IDEAPAD_SLIDEBAR is not set
# CONFIG_INPUT_DRV260X_HAPTICS is not set
# CONFIG_INPUT_DRV2665_HAPTICS is not set
# CONFIG_INPUT_DRV2667_HAPTICS is not set
CONFIG_RMI4_CORE=y
# CONFIG_RMI4_I2C is not set
# CONFIG_RMI4_SPI is not set
# CONFIG_RMI4_SMB is not set
CONFIG_RMI4_F03=y
CONFIG_RMI4_F03_SERIO=y
CONFIG_RMI4_2D_SENSOR=y
CONFIG_RMI4_F11=y
CONFIG_RMI4_F12=y
# CONFIG_RMI4_F1A is not set
# CONFIG_RMI4_F21 is not set
CONFIG_RMI4_F30=y
# CONFIG_RMI4_F34 is not set
CONFIG_RMI4_F3A=y
# CONFIG_RMI4_F54 is not set
# CONFIG_RMI4_F55 is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_SERIO_APBPS2 is not set
# CONFIG_SERIO_GPIO_PS2 is not set
CONFIG_USERIO=y
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_LEGACY_TIOCSTI=y
CONFIG_LDISC_AUTOLOAD=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_16550A_VARIANTS is not set
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCILIB=y
CONFIG_SERIAL_8250_PCI=y
# CONFIG_SERIAL_8250_EXAR is not set
# CONFIG_SERIAL_8250_CS is not set
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
CONFIG_SERIAL_8250_MANY_PORTS=y
# CONFIG_SERIAL_8250_PCI1XXXX is not set
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_8250_LPSS=y
CONFIG_SERIAL_8250_MID=y
CONFIG_SERIAL_8250_PERICOM=y
# CONFIG_SERIAL_8250_NI is not set
# CONFIG_SERIAL_OF_PLATFORM is not set
CONFIG_SERIAL_8250_DWLIB=y

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SIFIVE is not set
# CONFIG_SERIAL_LANTIQ is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
CONFIG_N_HDLC=y
# CONFIG_IPWIRELESS is not set
CONFIG_N_GSM=y
CONFIG_NOZOMI=y
CONFIG_NULL_TTY=y
CONFIG_HVC_DRIVER=y
CONFIG_SERIAL_DEV_BUS=y
CONFIG_SERIAL_DEV_CTRL_TTYPORT=y
CONFIG_TTY_PRINTK=y
CONFIG_TTY_PRINTK_LEVEL=6
# CONFIG_PRINTER is not set
# CONFIG_PPDEV is not set
CONFIG_VIRTIO_CONSOLE=y
# CONFIG_IPMI_HANDLER is not set
# CONFIG_SSIF_IPMI_BMC is not set
# CONFIG_IPMB_DEVICE_INTERFACE is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_HW_RANDOM_INTEL is not set
# CONFIG_HW_RANDOM_AMD is not set
# CONFIG_HW_RANDOM_BA431 is not set
# CONFIG_HW_RANDOM_VIA is not set
CONFIG_HW_RANDOM_VIRTIO=y
# CONFIG_HW_RANDOM_CCTRNG is not set
# CONFIG_HW_RANDOM_XIPHERA is not set
# CONFIG_DEVMEM is not set
CONFIG_NVRAM=y
# CONFIG_DEVPORT is not set
CONFIG_HPET=y
CONFIG_HPET_MMAP=y
CONFIG_HPET_MMAP_DEFAULT=y
# CONFIG_HANGCHECK_TIMER is not set
CONFIG_TCG_TPM=y
# CONFIG_TCG_TPM2_HMAC is not set
# CONFIG_HW_RANDOM_TPM is not set
CONFIG_TCG_TIS_CORE=y
CONFIG_TCG_TIS=y
# CONFIG_TCG_TIS_SPI is not set
# CONFIG_TCG_TIS_I2C is not set
# CONFIG_TCG_TIS_I2C_CR50 is not set
# CONFIG_TCG_TIS_I2C_ATMEL is not set
# CONFIG_TCG_TIS_I2C_INFINEON is not set
# CONFIG_TCG_TIS_I2C_NUVOTON is not set
# CONFIG_TCG_NSC is not set
# CONFIG_TCG_ATMEL is not set
# CONFIG_TCG_INFINEON is not set
CONFIG_TCG_CRB=y
# CONFIG_TCG_VTPM_PROXY is not set
# CONFIG_TCG_TIS_ST33ZP24_I2C is not set
# CONFIG_TCG_TIS_ST33ZP24_SPI is not set
# CONFIG_TELCLOCK is not set
CONFIG_XILLYBUS_CLASS=y
# CONFIG_XILLYBUS is not set
CONFIG_XILLYUSB=y
# end of Character devices

#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y

#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_ARB_GPIO_CHALLENGE is not set
# CONFIG_I2C_MUX_GPIO is not set
# CONFIG_I2C_MUX_GPMUX is not set
# CONFIG_I2C_MUX_LTC4306 is not set
# CONFIG_I2C_MUX_PCA9541 is not set
# CONFIG_I2C_MUX_PCA954x is not set
CONFIG_I2C_MUX_REG=y
# CONFIG_I2C_MUX_MLXCPLD is not set
# end of Multiplexer I2C Chip support

CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=y
CONFIG_I2C_ALGOBIT=y

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_AMD_MP2 is not set
CONFIG_I2C_I801=y
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_ISMT is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_CHT_WC is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_NVIDIA_GPU is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set
# CONFIG_I2C_ZHAOXIN is not set

#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
CONFIG_I2C_DESIGNWARE_CORE=y
CONFIG_I2C_DESIGNWARE_PLATFORM=y
# CONFIG_I2C_DESIGNWARE_BAYTRAIL is not set
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_RK3X is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
CONFIG_I2C_DIOLAN_U2C=y
CONFIG_I2C_DLN2=y
CONFIG_I2C_LJCA=y
CONFIG_I2C_CP2615=y
# CONFIG_I2C_PARPORT is not set
# CONFIG_I2C_PCI1XXXX is not set
CONFIG_I2C_ROBOTFUZZ_OSIF=y
# CONFIG_I2C_TAOS_EVM is not set
CONFIG_I2C_TINY_USB=y
CONFIG_I2C_VIPERBOARD=y

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_MLXCPLD is not set
# CONFIG_I2C_VIRTIO is not set
# end of I2C Hardware Bus support

# CONFIG_I2C_STUB is not set
CONFIG_I2C_SLAVE=y
CONFIG_I2C_SLAVE_EEPROM=y
# CONFIG_I2C_SLAVE_TESTUNIT is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# end of I2C support

# CONFIG_I3C is not set
CONFIG_I3C_OR_I2C=y
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
# CONFIG_SPI_MEM is not set

#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_BUTTERFLY is not set
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_CADENCE_QUADSPI is not set
# CONFIG_SPI_CH341 is not set
# CONFIG_SPI_DESIGNWARE is not set
CONFIG_SPI_DLN2=y
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_LM70_LLP is not set
# CONFIG_SPI_FSL_SPI is not set
CONFIG_SPI_LJCA=y
# CONFIG_SPI_MICROCHIP_CORE_QSPI is not set
# CONFIG_SPI_MICROCHIP_CORE_SPI is not set
# CONFIG_SPI_LANTIQ_SSC is not set
# CONFIG_SPI_OC_TINY is not set
# CONFIG_SPI_PCI1XXXX is not set
# CONFIG_SPI_PXA2XX is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_SIFIVE is not set
# CONFIG_SPI_MXIC is not set
# CONFIG_SPI_VIRTIO is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set

#
# SPI Multiplexer support
#
# CONFIG_SPI_MUX is not set

#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_LOOPBACK_TEST is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPI_SLAVE is not set
CONFIG_SPI_DYNAMIC=y
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_PARPORT is not set
# CONFIG_PPS_CLIENT_GPIO is not set
# CONFIG_PPS_GENERATOR is not set

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
CONFIG_PTP_1588_CLOCK_OPTIONAL=y

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PTP_1588_CLOCK_KVM=y
CONFIG_PTP_1588_CLOCK_VMCLOCK=y
# CONFIG_PTP_1588_CLOCK_IDT82P33 is not set
# CONFIG_PTP_1588_CLOCK_IDTCM is not set
# CONFIG_PTP_1588_CLOCK_FC3W is not set
# CONFIG_PTP_1588_CLOCK_MOCK is not set
# CONFIG_PTP_1588_CLOCK_VMW is not set
# CONFIG_PTP_1588_CLOCK_OCP is not set
# CONFIG_PTP_NETC_V4_TIMER is not set
# end of PTP clock support

#
# DPLL device support
#
# CONFIG_ZL3073X_I2C is not set
# CONFIG_ZL3073X_SPI is not set
# end of DPLL device support

# CONFIG_PINCTRL is not set
CONFIG_GPIOLIB_LEGACY=y
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_OF_GPIO=y
CONFIG_GPIO_ACPI=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
# CONFIG_GPIO_SYSFS is not set
# CONFIG_GPIO_CDEV is not set

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_74XX_MMIO is not set
# CONFIG_GPIO_ALTERA is not set
# CONFIG_GPIO_AMDPT is not set
# CONFIG_GPIO_BY_PINCTRL is not set
# CONFIG_GPIO_CADENCE is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_FTGPIO010 is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_GRANITERAPIDS is not set
# CONFIG_GPIO_GRGPIO is not set
# CONFIG_GPIO_HLWD is not set
# CONFIG_GPIO_ICH is not set
# CONFIG_GPIO_LOGICVC is not set
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_POLARFIRE_SOC is not set
# CONFIG_GPIO_SIFIVE is not set
# CONFIG_GPIO_SYSCON is not set
# CONFIG_GPIO_WAVESHARE_DSI_TOUCH is not set
# CONFIG_GPIO_XILINX is not set
# CONFIG_GPIO_AMD_FCH is not set
# end of Memory mapped GPIO drivers

#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_IT87 is not set
# CONFIG_GPIO_NOVALAKE is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_WINBOND is not set
# CONFIG_GPIO_WS16C48 is not set
# end of Port-mapped I/O GPIO drivers

#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADNP is not set
# CONFIG_GPIO_FXL6408 is not set
# CONFIG_GPIO_DS4520 is not set
# CONFIG_GPIO_GW_PLD is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
CONFIG_GPIO_DLN2=y
CONFIG_GPIO_LJCA=y
# CONFIG_GPIO_TWL4030 is not set
# CONFIG_GPIO_WHISKEY_COVE is not set
# end of MFD GPIO expanders

#
# Auxiliary Bus GPIO drivers
#
# end of Auxiliary Bus GPIO drivers

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_PCI_IDIO_16 is not set
# CONFIG_GPIO_PCIE_IDIO_24 is not set
# CONFIG_GPIO_RDC321X is not set
# CONFIG_GPIO_SODAVILLE is not set
# end of PCI GPIO expanders

#
# SPI GPIO expanders
#
# CONFIG_GPIO_74X164 is not set
# CONFIG_GPIO_MAX3191X is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_PISOSR is not set
# CONFIG_GPIO_XRA1403 is not set
# end of SPI GPIO expanders

#
# USB GPIO expanders
#
CONFIG_GPIO_VIPERBOARD=y
# CONFIG_GPIO_MPSSE is not set
# end of USB GPIO expanders

#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_LATCH is not set
# CONFIG_GPIO_LINE_MUX is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_VIRTIO is not set
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers

#
# GPIO Debugging utilities
#
# CONFIG_GPIO_SLOPPY_LOGIC_ANALYZER is not set
# CONFIG_GPIO_VIRTUSER is not set
# end of GPIO Debugging utilities

# CONFIG_W1 is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SEQUENCING is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_POWER_SUPPLY_HWMON=y
# CONFIG_GENERIC_ADC_BATTERY is not set
# CONFIG_IP5XXX_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_CHARGER_ADP5061 is not set
# CONFIG_BATTERY_CHAGALL is not set
# CONFIG_BATTERY_CW2015 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SAMSUNG_SDI is not set
# CONFIG_BATTERY_S2MU005 is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_CHARGER_SBS is not set
# CONFIG_MANAGER_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_BATTERY_MAX1720X is not set
CONFIG_CHARGER_ISP1704=y
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_TWL4030 is not set
# CONFIG_CHARGER_TWL6030 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_CHARGER_LT3651 is not set
# CONFIG_CHARGER_LTC4162L is not set
# CONFIG_CHARGER_DETECTOR_MAX14656 is not set
# CONFIG_CHARGER_MAX77976 is not set
# CONFIG_CHARGER_MAX8971 is not set
# CONFIG_CHARGER_MT6360 is not set
# CONFIG_CHARGER_MT6370 is not set
# CONFIG_CHARGER_BQ2415X is not set
CONFIG_CHARGER_BQ24190=y
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ2515X is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_BQ25980 is not set
# CONFIG_CHARGER_BQ256XX is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_BATTERY_GOLDFISH is not set
# CONFIG_BATTERY_RT5033 is not set
# CONFIG_CHARGER_RT9455 is not set
# CONFIG_CHARGER_RT9467 is not set
# CONFIG_CHARGER_RT9471 is not set
# CONFIG_CHARGER_RT9756 is not set
# CONFIG_FUEL_GAUGE_STC3117 is not set
# CONFIG_CHARGER_UCS1002 is not set
# CONFIG_CHARGER_BD99954 is not set
# CONFIG_BATTERY_SURFACE is not set
# CONFIG_CHARGER_SURFACE is not set
# CONFIG_BATTERY_UG3105 is not set
# CONFIG_BATTERY_CHARGER_SURFACE_RT is not set
# CONFIG_FUEL_GAUGE_MM8013 is not set
CONFIG_HWMON=y
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_ABITUGURU3 is not set
# CONFIG_SENSORS_AD7314 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM1177 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7310 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_AHT10 is not set
CONFIG_SENSORS_AQUACOMPUTER_D5NEXT=y
# CONFIG_SENSORS_AS370 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_ASUS_ROG_RYUJIN is not set
# CONFIG_SENSORS_AXI_FAN_CONTROL is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_K10TEMP is not set
# CONFIG_SENSORS_FAM15H_POWER is not set
# CONFIG_SENSORS_APPLESMC is not set
# CONFIG_SENSORS_ARCTIC_FAN_CONTROLLER is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_CHIPCAP2 is not set
CONFIG_SENSORS_CORSAIR_CPRO=y
CONFIG_SENSORS_CORSAIR_PSU=y
# CONFIG_SENSORS_DRIVETEMP is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_DELL_SMM is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FSCHMD is not set
# CONFIG_SENSORS_FTSTEUTATES is not set
CONFIG_SENSORS_GIGABYTE_WATERFORCE=y
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_GPD is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_GPIO_FAN is not set
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_HS3001 is not set
# CONFIG_SENSORS_HTU31 is not set
# CONFIG_SENSORS_IIO_HWMON is not set
# CONFIG_SENSORS_I5500 is not set
# CONFIG_SENSORS_CORETEMP is not set
# CONFIG_SENSORS_ISL28022 is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
CONFIG_SENSORS_POWERZ=y
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_PROM21_XHCI is not set
# CONFIG_SENSORS_LATTEPANDA_SIGMA_EC is not set
# CONFIG_SENSORS_LENOVO_EC is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC2947_I2C is not set
# CONFIG_SENSORS_LTC2947_SPI is not set
# CONFIG_SENSORS_LTC2990 is not set
# CONFIG_SENSORS_LTC2991 is not set
# CONFIG_SENSORS_LTC2992 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_LTC4282 is not set
# CONFIG_SENSORS_LTC4283 is not set
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX127 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX31722 is not set
# CONFIG_SENSORS_MAX31730 is not set
# CONFIG_SENSORS_MAX31760 is not set
# CONFIG_MAX31827 is not set
# CONFIG_SENSORS_MAX6620 is not set
# CONFIG_SENSORS_MAX6621 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_MC34VR500 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_MCP9982 is not set
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_TPS23861 is not set
# CONFIG_SENSORS_MR75203 is not set
# CONFIG_SENSORS_ADCXX is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM70 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NCT6775_I2C is not set
# CONFIG_SENSORS_NCT7363 is not set
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_NPCM7XX is not set
CONFIG_SENSORS_NZXT_KRAKEN2=y
# CONFIG_SENSORS_NZXT_KRAKEN3 is not set
CONFIG_SENSORS_NZXT_SMART2=y
# CONFIG_SENSORS_OCC_P8_I2C is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_PT5161L is not set
# CONFIG_SENSORS_SBTSI is not set
# CONFIG_SENSORS_SHT15 is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHT4x is not set
# CONFIG_SENSORS_SHTC1 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC1812 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC2305 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_STTS751 is not set
# CONFIG_SENSORS_SURFACE_FAN is not set
# CONFIG_SENSORS_SURFACE_TEMP is not set
# CONFIG_SENSORS_ADC128D818 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_ADS7871 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_INA238 is not set
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_SPD5118 is not set
# CONFIG_SENSORS_TC74 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP108 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_TMP464 is not set
# CONFIG_SENSORS_TMP513 is not set
# CONFIG_SENSORS_TSC1641 is not set
# CONFIG_SENSORS_VIA_CPUTEMP is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83773G is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_XGENE is not set
# CONFIG_SENSORS_YOGAFAN is not set

#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
# CONFIG_SENSORS_ATK0110 is not set
# CONFIG_SENSORS_ASUS_WMI is not set
# CONFIG_SENSORS_ASUS_EC is not set
# CONFIG_SENSORS_HP_WMI is not set
CONFIG_THERMAL=y
CONFIG_THERMAL_NETLINK=y
# CONFIG_THERMAL_STATISTICS is not set
# CONFIG_THERMAL_DEBUGFS is not set
# CONFIG_THERMAL_CORE_TESTING is not set
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
CONFIG_THERMAL_HWMON=y
# CONFIG_THERMAL_OF is not set
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
# CONFIG_THERMAL_GOV_BANG_BANG is not set
# CONFIG_THERMAL_GOV_USER_SPACE is not set
# CONFIG_PCIE_THERMAL is not set
# CONFIG_THERMAL_EMULATION is not set
# CONFIG_THERMAL_MMIO is not set

#
# Intel thermal drivers
#
# CONFIG_INTEL_POWERCLAMP is not set
CONFIG_X86_THERMAL_VECTOR=y
# CONFIG_X86_PKG_TEMP_THERMAL is not set
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
# CONFIG_INT340X_THERMAL is not set
# end of ACPI INT340X thermal drivers

# CONFIG_INTEL_BXT_PMIC_THERMAL is not set
# CONFIG_INTEL_PCH_THERMAL is not set
# CONFIG_INTEL_TCC_COOLING is not set
# CONFIG_INTEL_HFI_THERMAL is not set
# end of Intel thermal drivers

# CONFIG_GENERIC_ADC_THERMAL is not set
CONFIG_WATCHDOG=y
# CONFIG_WATCHDOG_CORE is not set
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
# CONFIG_WATCHDOG_SYSFS is not set
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set

#
# Watchdog Pretimeout Governors
#

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_GPIO_WATCHDOG is not set
# CONFIG_LENOVO_SE10_WDT is not set
# CONFIG_LENOVO_SE30_WDT is not set
# CONFIG_WDAT_WDT is not set
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_TWL4030_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_RETU_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ADVANTECH_EC_WDT is not set
# CONFIG_ALIM1535_WDT is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_EBC_C384_WDT is not set
# CONFIG_EXAR_WDT is not set
# CONFIG_F71808E_WDT is not set
# CONFIG_SP5100_TCO is not set
# CONFIG_SBC_FITPC2_WATCHDOG is not set
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
# CONFIG_IBMASR is not set
# CONFIG_WAFER_WDT is not set
# CONFIG_I6300ESB_WDT is not set
# CONFIG_IE6XX_WDT is not set
# CONFIG_INTEL_OC_WATCHDOG is not set
# CONFIG_ITCO_WDT is not set
# CONFIG_IT8712F_WDT is not set
# CONFIG_IT87_WDT is not set
# CONFIG_HP_WATCHDOG is not set
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
# CONFIG_NV_TCO is not set
# CONFIG_60XX_WDT is not set
# CONFIG_SMSC_SCH311X_WDT is not set
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_TQMX86_WDT is not set
# CONFIG_VIA_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83877F_WDT is not set
# CONFIG_W83977F_WDT is not set
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
# CONFIG_INTEL_MEI_WDT is not set
# CONFIG_NI903X_WDT is not set
# CONFIG_NIC7018_WDT is not set
# CONFIG_MEN_A21_WDT is not set

#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set

#
# USB-based Watchdog Cards
#
CONFIG_USBPCWATCHDOG=y
CONFIG_SSB_POSSIBLE=y
CONFIG_SSB=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
# CONFIG_SSB_PCIHOST is not set
CONFIG_SSB_PCMCIAHOST_POSSIBLE=y
# CONFIG_SSB_PCMCIAHOST is not set
CONFIG_SSB_SDIOHOST_POSSIBLE=y
# CONFIG_SSB_SDIOHOST is not set
# CONFIG_SSB_DRIVER_GPIO is not set
CONFIG_BCMA_POSSIBLE=y
CONFIG_BCMA=y
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
# CONFIG_BCMA_HOST_PCI is not set
# CONFIG_BCMA_HOST_SOC is not set
# CONFIG_BCMA_DRIVER_PCI is not set
# CONFIG_BCMA_DRIVER_GMAC_CMN is not set
# CONFIG_BCMA_DRIVER_GPIO is not set
# CONFIG_BCMA_DEBUG is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_ADP5585 is not set
# CONFIG_MFD_ACT8945A is not set
# CONFIG_MFD_AS3711 is not set
# CONFIG_MFD_SMPRO is not set
# CONFIG_MFD_AS3722 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_ATMEL_FLEXCOM is not set
# CONFIG_MFD_ATMEL_HLCDC is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
# CONFIG_MFD_AXP20X_I2C is not set
# CONFIG_MFD_CGBC is not set
# CONFIG_MFD_CS40L50_I2C is not set
# CONFIG_MFD_CS40L50_SPI is not set
# CONFIG_MFD_CS42L43_I2C is not set
# CONFIG_MFD_CS42L43_SDW is not set
# CONFIG_MFD_LOCHNAGAR is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
CONFIG_MFD_DLN2=y
# CONFIG_MFD_GATEWORKS_GSC is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
# CONFIG_MFD_PF1550 is not set
# CONFIG_MFD_HI6421_PMIC is not set
# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
CONFIG_LPC_ICH=y
# CONFIG_LPC_SCH is not set
# CONFIG_INTEL_SOC_PMIC is not set
CONFIG_INTEL_SOC_PMIC_BXTWC=y
CONFIG_INTEL_SOC_PMIC_CHTWC=y
# CONFIG_INTEL_SOC_PMIC_CHTDC_TI is not set
# CONFIG_MFD_INTEL_LPSS_ACPI is not set
# CONFIG_MFD_INTEL_LPSS_PCI is not set
CONFIG_MFD_INTEL_PMC_BXT=y
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_88PM886_PMIC is not set
# CONFIG_MFD_MAX5970 is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77541 is not set
# CONFIG_MFD_MAX77620 is not set
# CONFIG_MFD_MAX77650 is not set
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77705 is not set
# CONFIG_MFD_MAX77714 is not set
# CONFIG_MFD_MAX77759 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
CONFIG_MFD_MT6360=y
CONFIG_MFD_MT6370=y
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_MFD_NCT6694 is not set
# CONFIG_MFD_OCELOT is not set
# CONFIG_MFD_CPCAP is not set
CONFIG_MFD_VIPERBOARD=y
# CONFIG_MFD_NTXEC is not set
CONFIG_MFD_RETU=y
# CONFIG_MFD_SY7636A is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RT4831 is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RT5120 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_RK8XX_I2C is not set
# CONFIG_MFD_RK8XX_SPI is not set
# CONFIG_MFD_RN5T618 is not set
# CONFIG_MFD_SEC_I2C is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_STMPE is not set
CONFIG_MFD_SYSCON=y
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_TI_LMU is not set
# CONFIG_MFD_BQ257XX is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TI_LP87565 is not set
# CONFIG_MFD_TPS65218 is not set
# CONFIG_MFD_TPS65219 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_MFD_TPS6594_I2C is not set
# CONFIG_MFD_TPS6594_SPI is not set
CONFIG_TWL4030_CORE=y
# CONFIG_MFD_TWL4030_AUDIO is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TQMX86 is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_ROHM_BD718XX is not set
# CONFIG_MFD_ROHM_BD71828 is not set
# CONFIG_MFD_ROHM_BD957XMUF is not set
# CONFIG_MFD_ROHM_BD96801 is not set
# CONFIG_MFD_STPMIC1 is not set
# CONFIG_MFD_STMFX is not set
# CONFIG_MFD_ATC260X_I2C is not set
# CONFIG_MFD_QCOM_PM8008 is not set
# CONFIG_RAVE_SP_CORE is not set
# CONFIG_MFD_INTEL_M10_BMC_SPI is not set
# CONFIG_MFD_QNAP_MCU is not set
# CONFIG_MFD_RSMU_I2C is not set
# CONFIG_MFD_RSMU_SPI is not set
# CONFIG_MFD_UPBOARD_FPGA is not set
# CONFIG_MFD_MAX7360 is not set
# end of Multifunction device drivers

CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_NETLINK_EVENTS is not set
# CONFIG_REGULATOR_88PG86X is not set
# CONFIG_REGULATOR_ACT8865 is not set
# CONFIG_REGULATOR_AD5398 is not set
# CONFIG_REGULATOR_ADP5055 is not set
# CONFIG_REGULATOR_AW37503 is not set
# CONFIG_REGULATOR_DA9121 is not set
# CONFIG_REGULATOR_DA9210 is not set
# CONFIG_REGULATOR_DA9211 is not set
# CONFIG_REGULATOR_FAN53555 is not set
# CONFIG_REGULATOR_FAN53880 is not set
# CONFIG_REGULATOR_GPIO is not set
# CONFIG_REGULATOR_ISL9305 is not set
# CONFIG_REGULATOR_ISL6271A is not set
# CONFIG_REGULATOR_FP9931 is not set
# CONFIG_REGULATOR_LP3971 is not set
# CONFIG_REGULATOR_LP3972 is not set
# CONFIG_REGULATOR_LP872X is not set
# CONFIG_REGULATOR_LP8755 is not set
# CONFIG_REGULATOR_LTC3589 is not set
# CONFIG_REGULATOR_LTC3676 is not set
# CONFIG_REGULATOR_MAX1586 is not set
# CONFIG_REGULATOR_MAX77503 is not set
# CONFIG_REGULATOR_MAX77675 is not set
# CONFIG_REGULATOR_MAX77857 is not set
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8893 is not set
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX20086 is not set
# CONFIG_REGULATOR_MAX20411 is not set
# CONFIG_REGULATOR_MAX77826 is not set
# CONFIG_REGULATOR_MAX77838 is not set
# CONFIG_REGULATOR_MCP16502 is not set
# CONFIG_REGULATOR_MP5416 is not set
# CONFIG_REGULATOR_MP8859 is not set
# CONFIG_REGULATOR_MP886X is not set
# CONFIG_REGULATOR_MPQ7920 is not set
# CONFIG_REGULATOR_MT6311 is not set
# CONFIG_REGULATOR_MT6360 is not set
# CONFIG_REGULATOR_MT6370 is not set
# CONFIG_REGULATOR_PCA9450 is not set
# CONFIG_REGULATOR_PF9453 is not set
# CONFIG_REGULATOR_PF0900 is not set
# CONFIG_REGULATOR_PF530X is not set
# CONFIG_REGULATOR_PF8X00 is not set
# CONFIG_REGULATOR_PFUZE100 is not set
# CONFIG_REGULATOR_PV88060 is not set
# CONFIG_REGULATOR_PV88080 is not set
# CONFIG_REGULATOR_PV88090 is not set
# CONFIG_REGULATOR_RAA215300 is not set
# CONFIG_REGULATOR_RT4801 is not set
# CONFIG_REGULATOR_RT4803 is not set
# CONFIG_REGULATOR_RT5133 is not set
# CONFIG_REGULATOR_RT5190A is not set
# CONFIG_REGULATOR_RT5739 is not set
# CONFIG_REGULATOR_RT5759 is not set
# CONFIG_REGULATOR_RT6160 is not set
# CONFIG_REGULATOR_RT6190 is not set
# CONFIG_REGULATOR_RT6245 is not set
# CONFIG_REGULATOR_RT8092 is not set
# CONFIG_REGULATOR_RTQ2134 is not set
# CONFIG_REGULATOR_RTMV20 is not set
# CONFIG_REGULATOR_RTQ6752 is not set
# CONFIG_REGULATOR_RTQ2208 is not set
# CONFIG_REGULATOR_SGM3804 is not set
# CONFIG_REGULATOR_SLG51000 is not set
# CONFIG_REGULATOR_SY8106A is not set
# CONFIG_REGULATOR_SY8824X is not set
# CONFIG_REGULATOR_SY8827N is not set
# CONFIG_REGULATOR_TPS51632 is not set
# CONFIG_REGULATOR_TPS62360 is not set
# CONFIG_REGULATOR_TPS6286X is not set
# CONFIG_REGULATOR_TPS6287X is not set
# CONFIG_REGULATOR_TPS65023 is not set
# CONFIG_REGULATOR_TPS6507X is not set
# CONFIG_REGULATOR_TPS65132 is not set
# CONFIG_REGULATOR_TPS65185 is not set
# CONFIG_REGULATOR_TPS6524X is not set
CONFIG_REGULATOR_TWL4030=y
# CONFIG_REGULATOR_VCTRL is not set
CONFIG_RC_CORE=y
# CONFIG_LIRC is not set
# CONFIG_RC_MAP is not set
# CONFIG_RC_DECODERS is not set
CONFIG_RC_DEVICES=y
# CONFIG_IR_ENE is not set
# CONFIG_IR_FINTEK is not set
# CONFIG_IR_GPIO_CIR is not set
# CONFIG_IR_HIX5HD2 is not set
CONFIG_IR_IGORPLUGUSB=y
CONFIG_IR_IGUANA=y
CONFIG_IR_IMON=y
CONFIG_IR_IMON_RAW=y
# CONFIG_IR_ITE_CIR is not set
CONFIG_IR_MCEUSB=y
# CONFIG_IR_NUVOTON is not set
CONFIG_IR_REDRAT3=y
# CONFIG_IR_SERIAL is not set
CONFIG_IR_STREAMZAP=y
CONFIG_IR_TOY=y
CONFIG_IR_TTUSBIR=y
# CONFIG_IR_WINBOND_CIR is not set
CONFIG_RC_ATI_REMOTE=y
# CONFIG_RC_LOOPBACK is not set
CONFIG_RC_XBOX_DVD=y
CONFIG_CEC_CORE=y

#
# CEC support
#
# CONFIG_MEDIA_CEC_RC is not set
CONFIG_MEDIA_CEC_SUPPORT=y
# CONFIG_CEC_CH7322 is not set
# CONFIG_CEC_NXP_TDA9950 is not set
# CONFIG_CEC_GPIO is not set
# CONFIG_CEC_SECO is not set
# CONFIG_USB_EXTRON_DA_HD_4K_PLUS_CEC is not set
CONFIG_USB_PULSE8_CEC=y
CONFIG_USB_RAINSHADOW_CEC=y
# end of CEC support

CONFIG_MEDIA_SUPPORT=y
CONFIG_MEDIA_SUPPORT_FILTER=y
# CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set

#
# Media device types
#
CONFIG_MEDIA_CAMERA_SUPPORT=y
CONFIG_MEDIA_ANALOG_TV_SUPPORT=y
CONFIG_MEDIA_DIGITAL_TV_SUPPORT=y
CONFIG_MEDIA_RADIO_SUPPORT=y
CONFIG_MEDIA_SDR_SUPPORT=y
CONFIG_MEDIA_PLATFORM_SUPPORT=y
CONFIG_MEDIA_TEST_SUPPORT=y
# end of Media device types

CONFIG_VIDEO_DEV=y
CONFIG_MEDIA_CONTROLLER=y
CONFIG_DVB_CORE=y

#
# Video4Linux options
#
CONFIG_VIDEO_V4L2_I2C=y
CONFIG_VIDEO_V4L2_SUBDEV_API=y
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
CONFIG_VIDEO_TUNER=y
CONFIG_V4L2_MEM2MEM_DEV=y
# end of Video4Linux options

#
# Media controller options
#
CONFIG_MEDIA_CONTROLLER_DVB=y
# end of Media controller options

#
# Digital TV options
#
# CONFIG_DVB_MMAP is not set
# CONFIG_DVB_NET is not set
CONFIG_DVB_MAX_ADAPTERS=16
# CONFIG_DVB_DYNAMIC_MINORS is not set
# CONFIG_DVB_DEMUX_SECTION_LOSS_LOG is not set
# CONFIG_DVB_ULE_DEBUG is not set
# end of Digital TV options

#
# Media drivers
#

#
# Drivers filtered as selected at 'Filter media drivers'
#

#
# Media drivers
#
CONFIG_MEDIA_USB_SUPPORT=y

#
# Webcam devices
#
CONFIG_USB_GSPCA=y
CONFIG_USB_GSPCA_BENQ=y
CONFIG_USB_GSPCA_CONEX=y
CONFIG_USB_GSPCA_CPIA1=y
CONFIG_USB_GSPCA_DTCS033=y
CONFIG_USB_GSPCA_ETOMS=y
CONFIG_USB_GSPCA_FINEPIX=y
CONFIG_USB_GSPCA_JEILINJ=y
CONFIG_USB_GSPCA_JL2005BCD=y
CONFIG_USB_GSPCA_KINECT=y
CONFIG_USB_GSPCA_KONICA=y
CONFIG_USB_GSPCA_MARS=y
CONFIG_USB_GSPCA_MR97310A=y
CONFIG_USB_GSPCA_NW80X=y
CONFIG_USB_GSPCA_OV519=y
CONFIG_USB_GSPCA_OV534=y
CONFIG_USB_GSPCA_OV534_9=y
CONFIG_USB_GSPCA_PAC207=y
CONFIG_USB_GSPCA_PAC7302=y
CONFIG_USB_GSPCA_PAC7311=y
CONFIG_USB_GSPCA_SE401=y
CONFIG_USB_GSPCA_SN9C2028=y
CONFIG_USB_GSPCA_SN9C20X=y
CONFIG_USB_GSPCA_SONIXB=y
CONFIG_USB_GSPCA_SONIXJ=y
CONFIG_USB_GSPCA_SPCA1528=y
CONFIG_USB_GSPCA_SPCA500=y
CONFIG_USB_GSPCA_SPCA501=y
CONFIG_USB_GSPCA_SPCA505=y
CONFIG_USB_GSPCA_SPCA506=y
CONFIG_USB_GSPCA_SPCA508=y
CONFIG_USB_GSPCA_SPCA561=y
CONFIG_USB_GSPCA_SQ905=y
CONFIG_USB_GSPCA_SQ905C=y
CONFIG_USB_GSPCA_SQ930X=y
CONFIG_USB_GSPCA_STK014=y
CONFIG_USB_GSPCA_STK1135=y
CONFIG_USB_GSPCA_STV0680=y
CONFIG_USB_GSPCA_SUNPLUS=y
CONFIG_USB_GSPCA_T613=y
CONFIG_USB_GSPCA_TOPRO=y
CONFIG_USB_GSPCA_TOUPTEK=y
CONFIG_USB_GSPCA_TV8532=y
CONFIG_USB_GSPCA_VC032X=y
CONFIG_USB_GSPCA_VICAM=y
CONFIG_USB_GSPCA_XIRLINK_CIT=y
CONFIG_USB_GSPCA_ZC3XX=y
CONFIG_USB_GL860=y
CONFIG_USB_M5602=y
CONFIG_USB_STV06XX=y
CONFIG_USB_PWC=y
# CONFIG_USB_PWC_DEBUG is not set
CONFIG_USB_PWC_INPUT_EVDEV=y
CONFIG_USB_S2255=y
CONFIG_VIDEO_USBTV=y
CONFIG_USB_VIDEO_CLASS=y
CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y

#
# Analog TV USB devices
#
CONFIG_VIDEO_GO7007=y
CONFIG_VIDEO_GO7007_USB=y
CONFIG_VIDEO_GO7007_LOADER=y
CONFIG_VIDEO_GO7007_USB_S2250_BOARD=y
CONFIG_VIDEO_HDPVR=y
CONFIG_VIDEO_PVRUSB2=y
CONFIG_VIDEO_PVRUSB2_SYSFS=y
CONFIG_VIDEO_PVRUSB2_DVB=y
# CONFIG_VIDEO_PVRUSB2_DEBUGIFC is not set
CONFIG_VIDEO_STK1160=y

#
# Analog/digital TV USB devices
#
CONFIG_VIDEO_AU0828=y
CONFIG_VIDEO_AU0828_V4L2=y
CONFIG_VIDEO_AU0828_RC=y
CONFIG_VIDEO_CX231XX=y
CONFIG_VIDEO_CX231XX_RC=y
CONFIG_VIDEO_CX231XX_ALSA=y
CONFIG_VIDEO_CX231XX_DVB=y

#
# Digital TV USB devices
#
CONFIG_DVB_AS102=y
CONFIG_DVB_B2C2_FLEXCOP_USB=y
# CONFIG_DVB_B2C2_FLEXCOP_USB_DEBUG is not set
CONFIG_DVB_USB_V2=y
CONFIG_DVB_USB_AF9015=y
CONFIG_DVB_USB_AF9035=y
CONFIG_DVB_USB_ANYSEE=y
CONFIG_DVB_USB_AU6610=y
CONFIG_DVB_USB_AZ6007=y
CONFIG_DVB_USB_CE6230=y
CONFIG_DVB_USB_DVBSKY=y
CONFIG_DVB_USB_EC168=y
CONFIG_DVB_USB_GL861=y
CONFIG_DVB_USB_LME2510=y
CONFIG_DVB_USB_MXL111SF=y
CONFIG_DVB_USB_RTL28XXU=y
CONFIG_DVB_USB_ZD1301=y
CONFIG_DVB_USB=y
# CONFIG_DVB_USB_DEBUG is not set
CONFIG_DVB_USB_A800=y
CONFIG_DVB_USB_AF9005=y
CONFIG_DVB_USB_AF9005_REMOTE=y
CONFIG_DVB_USB_AZ6027=y
CONFIG_DVB_USB_CINERGY_T2=y
CONFIG_DVB_USB_CXUSB=y
CONFIG_DVB_USB_CXUSB_ANALOG=y
CONFIG_DVB_USB_DIB0700=y
CONFIG_DVB_USB_DIB3000MC=y
CONFIG_DVB_USB_DIBUSB_MB=y
# CONFIG_DVB_USB_DIBUSB_MB_FAULTY is not set
CONFIG_DVB_USB_DIBUSB_MC=y
CONFIG_DVB_USB_DIGITV=y
CONFIG_DVB_USB_DTT200U=y
CONFIG_DVB_USB_DTV5100=y
CONFIG_DVB_USB_DW2102=y
CONFIG_DVB_USB_GP8PSK=y
CONFIG_DVB_USB_M920X=y
CONFIG_DVB_USB_NOVA_T_USB2=y
CONFIG_DVB_USB_OPERA1=y
CONFIG_DVB_USB_PCTV452E=y
CONFIG_DVB_USB_TECHNISAT_USB2=y
CONFIG_DVB_USB_TTUSB2=y
CONFIG_DVB_USB_UMT_010=y
CONFIG_DVB_USB_VP702X=y
CONFIG_DVB_USB_VP7045=y
CONFIG_SMS_USB_DRV=y
CONFIG_DVB_TTUSB_BUDGET=y
CONFIG_DVB_TTUSB_DEC=y

#
# Webcam, TV (analog/digital) USB devices
#
CONFIG_VIDEO_EM28XX=y
CONFIG_VIDEO_EM28XX_V4L2=y
CONFIG_VIDEO_EM28XX_ALSA=y
CONFIG_VIDEO_EM28XX_DVB=y
CONFIG_VIDEO_EM28XX_RC=y

#
# Software defined radio USB devices
#
CONFIG_USB_AIRSPY=y
CONFIG_USB_HACKRF=y
CONFIG_USB_MSI2500=y
# CONFIG_MEDIA_PCI_SUPPORT is not set
CONFIG_RADIO_ADAPTERS=y
# CONFIG_RADIO_MAXIRADIO is not set
# CONFIG_RADIO_SAA7706H is not set
CONFIG_RADIO_SHARK=y
CONFIG_RADIO_SHARK2=y
CONFIG_RADIO_SI4713=y
CONFIG_RADIO_TEA575X=y
# CONFIG_RADIO_TEA5764 is not set
# CONFIG_RADIO_TEF6862 is not set
CONFIG_USB_DSBR=y
CONFIG_USB_KEENE=y
CONFIG_USB_MA901=y
CONFIG_USB_MR800=y
CONFIG_USB_RAREMONO=y
CONFIG_RADIO_SI470X=y
CONFIG_USB_SI470X=y
# CONFIG_I2C_SI470X is not set
CONFIG_USB_SI4713=y
# CONFIG_PLATFORM_SI4713 is not set
CONFIG_I2C_SI4713=y
# CONFIG_MEDIA_PLATFORM_DRIVERS is not set

#
# MMC/SDIO DVB adapters
#
CONFIG_SMS_SDIO_DRV=y
CONFIG_V4L_TEST_DRIVERS=y
CONFIG_VIDEO_VIM2M=y
CONFIG_VIDEO_VICODEC=y
CONFIG_VIDEO_VIMC=y
CONFIG_VIDEO_VIVID=y
CONFIG_VIDEO_VIVID_CEC=y
# CONFIG_VIDEO_VIVID_OSD is not set
CONFIG_VIDEO_VIVID_MAX_DEVS=64
# CONFIG_VIDEO_VISL is not set
CONFIG_DVB_TEST_DRIVERS=y
CONFIG_DVB_VIDTV=y

#
# FireWire (IEEE 1394) Adapters
#
# CONFIG_DVB_FIREDTV is not set
CONFIG_MEDIA_COMMON_OPTIONS=y

#
# common driver options
#
CONFIG_CYPRESS_FIRMWARE=y
CONFIG_TTPCI_EEPROM=y
CONFIG_UVC_COMMON=y
CONFIG_VIDEO_CX2341X=y
CONFIG_VIDEO_TVEEPROM=y
CONFIG_DVB_B2C2_FLEXCOP=y
CONFIG_SMS_SIANO_MDTV=y
CONFIG_SMS_SIANO_RC=y
CONFIG_SMS_SIANO_DEBUGFS=y
CONFIG_VIDEO_V4L2_TPG=y
CONFIG_VIDEOBUF2_CORE=y
CONFIG_VIDEOBUF2_V4L2=y
CONFIG_VIDEOBUF2_MEMOPS=y
CONFIG_VIDEOBUF2_DMA_CONTIG=y
CONFIG_VIDEOBUF2_VMALLOC=y
CONFIG_VIDEOBUF2_DMA_SG=y
# end of Media drivers

#
# Media ancillary drivers
#
CONFIG_MEDIA_ATTACH=y
# CONFIG_VIDEO_IR_I2C is not set
# CONFIG_VIDEO_CAMERA_SENSOR is not set

#
# Camera ISPs
#
# CONFIG_VIDEO_THP7312 is not set
# end of Camera ISPs

# CONFIG_VIDEO_CAMERA_LENS is not set

#
# Flash devices
#
# CONFIG_VIDEO_ADP1653 is not set
# CONFIG_VIDEO_LM3560 is not set
# CONFIG_VIDEO_LM3646 is not set
# end of Flash devices

#
# Audio decoders, processors and mixers
#
# CONFIG_VIDEO_CS3308 is not set
# CONFIG_VIDEO_CS5345 is not set
CONFIG_VIDEO_CS53L32A=y
CONFIG_VIDEO_MSP3400=y
# CONFIG_VIDEO_SONY_BTF_MPX is not set
# CONFIG_VIDEO_TDA1997X is not set
# CONFIG_VIDEO_TDA7432 is not set
# CONFIG_VIDEO_TDA9840 is not set
# CONFIG_VIDEO_TEA6415C is not set
# CONFIG_VIDEO_TEA6420 is not set
# CONFIG_VIDEO_TLV320AIC23B is not set
# CONFIG_VIDEO_TVAUDIO is not set
# CONFIG_VIDEO_UDA1342 is not set
# CONFIG_VIDEO_VP27SMPX is not set
# CONFIG_VIDEO_WM8739 is not set
CONFIG_VIDEO_WM8775=y
# end of Audio decoders, processors and mixers

#
# RDS decoders
#
# CONFIG_VIDEO_SAA6588 is not set
# end of RDS decoders

#
# Video decoders
#
# CONFIG_VIDEO_ADV7180 is not set
# CONFIG_VIDEO_ADV7183 is not set
# CONFIG_VIDEO_ADV748X is not set
# CONFIG_VIDEO_ADV7604 is not set
# CONFIG_VIDEO_ADV7842 is not set
# CONFIG_VIDEO_BT819 is not set
# CONFIG_VIDEO_BT856 is not set
# CONFIG_VIDEO_BT866 is not set
# CONFIG_VIDEO_ISL7998X is not set
# CONFIG_VIDEO_LT6911UXE is not set
# CONFIG_VIDEO_KS0127 is not set
# CONFIG_VIDEO_MAX9286 is not set
# CONFIG_VIDEO_ML86V7667 is not set
# CONFIG_VIDEO_SAA7110 is not set
CONFIG_VIDEO_SAA711X=y
# CONFIG_VIDEO_TC358743 is not set
# CONFIG_VIDEO_TC358746 is not set
# CONFIG_VIDEO_TVP514X is not set
# CONFIG_VIDEO_TVP5150 is not set
# CONFIG_VIDEO_TVP7002 is not set
# CONFIG_VIDEO_TW2804 is not set
# CONFIG_VIDEO_TW9900 is not set
# CONFIG_VIDEO_TW9903 is not set
# CONFIG_VIDEO_TW9906 is not set
# CONFIG_VIDEO_TW9910 is not set
# CONFIG_VIDEO_VPX3220 is not set

#
# Video and audio decoders
#
# CONFIG_VIDEO_SAA717X is not set
CONFIG_VIDEO_CX25840=y
# end of Video decoders

#
# Video encoders
#
# CONFIG_VIDEO_ADV7170 is not set
# CONFIG_VIDEO_ADV7175 is not set
# CONFIG_VIDEO_ADV7343 is not set
# CONFIG_VIDEO_ADV7393 is not set
# CONFIG_VIDEO_ADV7511 is not set
# CONFIG_VIDEO_AK881X is not set
# CONFIG_VIDEO_SAA7127 is not set
# CONFIG_VIDEO_SAA7185 is not set
# CONFIG_VIDEO_THS8200 is not set
# end of Video encoders

#
# Video improvement chips
#
# CONFIG_VIDEO_UPD64031A is not set
# CONFIG_VIDEO_UPD64083 is not set
# end of Video improvement chips

#
# Audio/Video compression chips
#
# CONFIG_VIDEO_SAA6752HS is not set
# end of Audio/Video compression chips

#
# SDR tuner chips
#
# CONFIG_SDR_MAX2175 is not set
# end of SDR tuner chips

#
# Miscellaneous helper chips
#
# CONFIG_VIDEO_INTEL_CVS is not set
# CONFIG_VIDEO_I2C is not set
# CONFIG_VIDEO_M52790 is not set
# CONFIG_VIDEO_ST_MIPID02 is not set
# CONFIG_VIDEO_THS7303 is not set
# end of Miscellaneous helper chips

#
# Video serializers and deserializers
#
# CONFIG_VIDEO_DS90UB913 is not set
# CONFIG_VIDEO_DS90UB953 is not set
# CONFIG_VIDEO_DS90UB960 is not set
# CONFIG_VIDEO_MAX96714 is not set
# CONFIG_VIDEO_MAX96717 is not set
# end of Video serializers and deserializers

#
# Media SPI Adapters
#
# CONFIG_CXD2880_SPI_DRV is not set
# CONFIG_VIDEO_GS1662 is not set
# end of Media SPI Adapters

CONFIG_MEDIA_TUNER=y

#
# Customize TV tuners
#
# CONFIG_MEDIA_TUNER_E4000 is not set
# CONFIG_MEDIA_TUNER_FC0011 is not set
# CONFIG_MEDIA_TUNER_FC0012 is not set
# CONFIG_MEDIA_TUNER_FC0013 is not set
# CONFIG_MEDIA_TUNER_FC2580 is not set
# CONFIG_MEDIA_TUNER_IT913X is not set
# CONFIG_MEDIA_TUNER_M88RS6000T is not set
# CONFIG_MEDIA_TUNER_MAX2165 is not set
# CONFIG_MEDIA_TUNER_MC44S803 is not set
CONFIG_MEDIA_TUNER_MSI001=y
# CONFIG_MEDIA_TUNER_MT2060 is not set
# CONFIG_MEDIA_TUNER_MT2063 is not set
# CONFIG_MEDIA_TUNER_MT20XX is not set
# CONFIG_MEDIA_TUNER_MT2131 is not set
# CONFIG_MEDIA_TUNER_MT2266 is not set
# CONFIG_MEDIA_TUNER_MXL301RF is not set
# CONFIG_MEDIA_TUNER_MXL5005S is not set
# CONFIG_MEDIA_TUNER_MXL5007T is not set
# CONFIG_MEDIA_TUNER_QM1D1B0004 is not set
# CONFIG_MEDIA_TUNER_QM1D1C0042 is not set
# CONFIG_MEDIA_TUNER_QT1010 is not set
# CONFIG_MEDIA_TUNER_R820T is not set
# CONFIG_MEDIA_TUNER_SI2157 is not set
# CONFIG_MEDIA_TUNER_SIMPLE is not set
# CONFIG_MEDIA_TUNER_TDA18212 is not set
# CONFIG_MEDIA_TUNER_TDA18218 is not set
# CONFIG_MEDIA_TUNER_TDA18250 is not set
# CONFIG_MEDIA_TUNER_TDA18271 is not set
# CONFIG_MEDIA_TUNER_TDA827X is not set
# CONFIG_MEDIA_TUNER_TDA8290 is not set
# CONFIG_MEDIA_TUNER_TDA9887 is not set
# CONFIG_MEDIA_TUNER_TEA5761 is not set
# CONFIG_MEDIA_TUNER_TEA5767 is not set
# CONFIG_MEDIA_TUNER_TUA9001 is not set
# CONFIG_MEDIA_TUNER_XC2028 is not set
# CONFIG_MEDIA_TUNER_XC4000 is not set
# CONFIG_MEDIA_TUNER_XC5000 is not set
# end of Customize TV tuners

#
# Customise DVB Frontends
#

#
# Multistandard (satellite) frontends
#
# CONFIG_DVB_M88DS3103 is not set
# CONFIG_DVB_MXL5XX is not set
# CONFIG_DVB_STB0899 is not set
# CONFIG_DVB_STB6100 is not set
# CONFIG_DVB_STV090x is not set
# CONFIG_DVB_STV0910 is not set
# CONFIG_DVB_STV6110x is not set
# CONFIG_DVB_STV6111 is not set

#
# Multistandard (cable + terrestrial) frontends
#
# CONFIG_DVB_DRXK is not set
# CONFIG_DVB_MN88472 is not set
# CONFIG_DVB_MN88473 is not set
# CONFIG_DVB_SI2165 is not set
# CONFIG_DVB_TDA18271C2DD is not set

#
# DVB-S (satellite) frontends
#
# CONFIG_DVB_CX24110 is not set
# CONFIG_DVB_CX24116 is not set
# CONFIG_DVB_CX24117 is not set
# CONFIG_DVB_CX24120 is not set
# CONFIG_DVB_CX24123 is not set
# CONFIG_DVB_DS3000 is not set
# CONFIG_DVB_MB86A16 is not set
# CONFIG_DVB_MT312 is not set
# CONFIG_DVB_S5H1420 is not set
# CONFIG_DVB_SI21XX is not set
# CONFIG_DVB_STB6000 is not set
# CONFIG_DVB_STV0288 is not set
# CONFIG_DVB_STV0299 is not set
# CONFIG_DVB_STV0900 is not set
# CONFIG_DVB_STV6110 is not set
# CONFIG_DVB_TDA10071 is not set
# CONFIG_DVB_TDA10086 is not set
# CONFIG_DVB_TDA8083 is not set
# CONFIG_DVB_TDA8261 is not set
# CONFIG_DVB_TDA826X is not set
# CONFIG_DVB_TS2020 is not set
# CONFIG_DVB_TUA6100 is not set
# CONFIG_DVB_TUNER_CX24113 is not set
# CONFIG_DVB_TUNER_ITD1000 is not set
# CONFIG_DVB_VES1X93 is not set
# CONFIG_DVB_ZL10036 is not set
# CONFIG_DVB_ZL10039 is not set

#
# DVB-T (terrestrial) frontends
#
CONFIG_DVB_AF9013=y
CONFIG_DVB_AS102_FE=y
# CONFIG_DVB_CX22700 is not set
# CONFIG_DVB_CX22702 is not set
# CONFIG_DVB_CXD2820R is not set
# CONFIG_DVB_CXD2841ER is not set
CONFIG_DVB_DIB3000MB=y
CONFIG_DVB_DIB3000MC=y
# CONFIG_DVB_DIB7000M is not set
# CONFIG_DVB_DIB7000P is not set
# CONFIG_DVB_DIB9000 is not set
# CONFIG_DVB_DRXD is not set
CONFIG_DVB_EC100=y
CONFIG_DVB_GP8PSK_FE=y
# CONFIG_DVB_L64781 is not set
# CONFIG_DVB_MT352 is not set
# CONFIG_DVB_NXT6000 is not set
CONFIG_DVB_RTL2830=y
CONFIG_DVB_RTL2832=y
CONFIG_DVB_RTL2832_SDR=y
# CONFIG_DVB_S5H1432 is not set
# CONFIG_DVB_SI2168 is not set
# CONFIG_DVB_SP887X is not set
# CONFIG_DVB_STV0367 is not set
# CONFIG_DVB_TDA10048 is not set
# CONFIG_DVB_TDA1004X is not set
# CONFIG_DVB_ZD1301_DEMOD is not set
CONFIG_DVB_ZL10353=y
# CONFIG_DVB_CXD2880 is not set

#
# DVB-C (cable) frontends
#
# CONFIG_DVB_STV0297 is not set
# CONFIG_DVB_TDA10021 is not set
# CONFIG_DVB_TDA10023 is not set
# CONFIG_DVB_VES1820 is not set

#
# ATSC (North American/Korean Terrestrial/Cable DTV) frontends
#
# CONFIG_DVB_AU8522_DTV is not set
# CONFIG_DVB_AU8522_V4L is not set
# CONFIG_DVB_BCM3510 is not set
# CONFIG_DVB_LG2160 is not set
# CONFIG_DVB_LGDT3305 is not set
# CONFIG_DVB_LGDT3306A is not set
# CONFIG_DVB_LGDT330X is not set
# CONFIG_DVB_MXL692 is not set
# CONFIG_DVB_NXT200X is not set
# CONFIG_DVB_OR51132 is not set
# CONFIG_DVB_OR51211 is not set
# CONFIG_DVB_S5H1409 is not set
# CONFIG_DVB_S5H1411 is not set

#
# ISDB-T (terrestrial) frontends
#
# CONFIG_DVB_DIB8000 is not set
# CONFIG_DVB_MB86A20S is not set
# CONFIG_DVB_S921 is not set

#
# ISDB-S (satellite) & ISDB-T (terrestrial) frontends
#
# CONFIG_DVB_MN88443X is not set
# CONFIG_DVB_TC90522 is not set

#
# Digital terrestrial only tuners/PLL
#
# CONFIG_DVB_PLL is not set
# CONFIG_DVB_TUNER_DIB0070 is not set
# CONFIG_DVB_TUNER_DIB0090 is not set

#
# SEC control devices for DVB-S
#
# CONFIG_DVB_A8293 is not set
CONFIG_DVB_AF9033=y
# CONFIG_DVB_ASCOT2E is not set
# CONFIG_DVB_ATBM8830 is not set
# CONFIG_DVB_HELENE is not set
# CONFIG_DVB_HORUS3A is not set
# CONFIG_DVB_ISL6405 is not set
# CONFIG_DVB_ISL6421 is not set
# CONFIG_DVB_ISL6423 is not set
# CONFIG_DVB_IX2505V is not set
# CONFIG_DVB_LGS8GL5 is not set
# CONFIG_DVB_LGS8GXX is not set
# CONFIG_DVB_LNBH25 is not set
# CONFIG_DVB_LNBH29 is not set
# CONFIG_DVB_LNBP21 is not set
# CONFIG_DVB_LNBP22 is not set
# CONFIG_DVB_M88RS2000 is not set
# CONFIG_DVB_TDA665x is not set
# CONFIG_DVB_DRX39XYJ is not set

#
# Common Interface (EN50221) controller drivers
#
# CONFIG_DVB_CXD2099 is not set
# CONFIG_DVB_SP2 is not set
# end of Customise DVB Frontends

#
# Tools to develop new frontends
#
# CONFIG_DVB_DUMMY_FE is not set
# end of Media ancillary drivers

#
# Graphics support
#
CONFIG_APERTURE_HELPERS=y
CONFIG_SCREEN_INFO=y
CONFIG_VIDEO=y
# CONFIG_AUXDISPLAY is not set
# CONFIG_PANEL is not set
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_VIA is not set
CONFIG_INTEL_GTT=y
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_GPU_BUDDY=y
CONFIG_DRM=y

#
# DRM debugging options
#
# CONFIG_DRM_WERROR is not set
CONFIG_DRM_DEBUG_MM=y
# end of DRM debugging options

CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_KMS_HELPER=y
# CONFIG_DRM_PANIC is not set
# CONFIG_DRM_RAS is not set
# CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS is not set
# CONFIG_DRM_DEBUG_MODESET_LOCK is not set
CONFIG_DRM_CLIENT=y
CONFIG_DRM_CLIENT_LIB=y
CONFIG_DRM_CLIENT_SELECTION=y
CONFIG_DRM_CLIENT_SETUP=y

#
# Supported DRM clients
#
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
# CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM is not set
# CONFIG_DRM_CLIENT_LOG is not set
CONFIG_DRM_CLIENT_DEFAULT_FBDEV=y
CONFIG_DRM_CLIENT_DEFAULT="fbdev"
# end of Supported DRM clients

# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_DISPLAY_DP_AUX_BUS=y
CONFIG_DRM_DISPLAY_HELPER=y
# CONFIG_DRM_DISPLAY_DP_AUX_CEC is not set
# CONFIG_DRM_DISPLAY_DP_AUX_CHARDEV is not set
CONFIG_DRM_DISPLAY_DP_HELPER=y
CONFIG_DRM_DISPLAY_DSC_HELPER=y
CONFIG_DRM_DISPLAY_HDCP_HELPER=y
CONFIG_DRM_DISPLAY_HDMI_HELPER=y
CONFIG_DRM_TTM=y
CONFIG_DRM_BUDDY=y
CONFIG_DRM_TTM_HELPER=y
CONFIG_DRM_GEM_SHMEM_HELPER=y
# CONFIG_DRM_AMDGPU is not set

#
# ARM devices
#
# CONFIG_DRM_KOMEDA is not set
# end of ARM devices

# CONFIG_DRM_AST is not set
CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y
CONFIG_DRM_AUX_BRIDGE=y
CONFIG_DRM_AUX_HPD_BRIDGE=y

#
# Display Interface Bridges
#
# CONFIG_DRM_CHIPONE_ICN6211 is not set
# CONFIG_DRM_CHRONTEL_CH7033 is not set
# CONFIG_DRM_DISPLAY_CONNECTOR is not set
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_ITE_IT6263 is not set
# CONFIG_DRM_ITE_IT6505 is not set
# CONFIG_DRM_LONTIUM_LT8912B is not set
# CONFIG_DRM_LONTIUM_LT9211 is not set
# CONFIG_DRM_LONTIUM_LT9611 is not set
# CONFIG_DRM_LONTIUM_LT9611UXC is not set
# CONFIG_DRM_LONTIUM_LT8713SX is not set
# CONFIG_DRM_ITE_IT66121 is not set
# CONFIG_DRM_LVDS_CODEC is not set
# CONFIG_DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW is not set
# CONFIG_DRM_NWL_MIPI_DSI is not set
# CONFIG_DRM_NXP_PTN3460 is not set
# CONFIG_DRM_PARADE_PS8622 is not set
# CONFIG_DRM_PARADE_PS8640 is not set
# CONFIG_DRM_SAMSUNG_DSIM is not set
# CONFIG_DRM_SIL_SII8620 is not set
# CONFIG_DRM_SII902X is not set
# CONFIG_DRM_SII9234 is not set
# CONFIG_DRM_SIMPLE_BRIDGE is not set
# CONFIG_DRM_SOLOMON_SSD2825 is not set
# CONFIG_DRM_THINE_THC63LVD1024 is not set
# CONFIG_DRM_TOSHIBA_TC358762 is not set
# CONFIG_DRM_TOSHIBA_TC358764 is not set
# CONFIG_DRM_TOSHIBA_TC358767 is not set
# CONFIG_DRM_TOSHIBA_TC358768 is not set
# CONFIG_DRM_TOSHIBA_TC358775 is not set
# CONFIG_DRM_TI_DLPC3433 is not set
# CONFIG_DRM_TI_TDP158 is not set
# CONFIG_DRM_TI_TFP410 is not set
# CONFIG_DRM_TI_SN65DSI83 is not set
# CONFIG_DRM_TI_SN65DSI86 is not set
# CONFIG_DRM_TI_TPD12S015 is not set
# CONFIG_DRM_WAVESHARE_BRIDGE is not set
# CONFIG_DRM_ANALOGIX_ANX6345 is not set
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
# CONFIG_DRM_ANALOGIX_ANX7625 is not set
# CONFIG_DRM_I2C_ADV7511 is not set
# CONFIG_DRM_CDNS_DSI is not set
# CONFIG_DRM_CDNS_MHDP8546 is not set
# end of Display Interface Bridges

# CONFIG_DRM_ETNAVIV is not set
# CONFIG_DRM_GMA500 is not set
CONFIG_DRM_GUD=y
# CONFIG_DRM_HISI_HIBMC is not set
CONFIG_DRM_I915=y
CONFIG_DRM_I915_FORCE_PROBE=""
CONFIG_DRM_I915_CAPTURE_ERROR=y
CONFIG_DRM_I915_COMPRESS_ERROR=y
CONFIG_DRM_I915_USERPTR=y
# CONFIG_DRM_I915_GVT_KVMGT is not set
# CONFIG_DRM_I915_DP_TUNNEL is not set

#
# drm/i915 Debugging
#
# CONFIG_DRM_I915_WERROR is not set
# CONFIG_DRM_I915_REPLAY_GPU_HANGS_API is not set
# CONFIG_DRM_I915_DEBUG is not set
# CONFIG_DRM_I915_DEBUG_MMIO is not set
# CONFIG_DRM_I915_SW_FENCE_DEBUG_OBJECTS is not set
# CONFIG_DRM_I915_SW_FENCE_CHECK_DAG is not set
# CONFIG_DRM_I915_DEBUG_GUC is not set
# CONFIG_DRM_I915_SELFTEST is not set
# CONFIG_DRM_I915_LOW_LEVEL_TRACEPOINTS is not set
# CONFIG_DRM_I915_DEBUG_VBLANK_EVADE is not set
# CONFIG_DRM_I915_DEBUG_RUNTIME_PM is not set
# CONFIG_DRM_I915_DEBUG_WAKEREF is not set
# end of drm/i915 Debugging

#
# drm/i915 Profile Guided Optimisation
#
CONFIG_DRM_I915_REQUEST_TIMEOUT=20000
CONFIG_DRM_I915_FENCE_TIMEOUT=10000
CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND=250
CONFIG_DRM_I915_HEARTBEAT_INTERVAL=2500
CONFIG_DRM_I915_PREEMPT_TIMEOUT=640
CONFIG_DRM_I915_PREEMPT_TIMEOUT_COMPUTE=7500
CONFIG_DRM_I915_MAX_REQUEST_BUSYWAIT=8000
CONFIG_DRM_I915_STOP_TIMEOUT=100
CONFIG_DRM_I915_TIMESLICE_DURATION=1
# end of drm/i915 Profile Guided Optimisation

# CONFIG_DRM_LOGICVC is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_NOUVEAU is not set
CONFIG_DRM_PANEL=y

#
# Display Panels
#
# CONFIG_DRM_PANEL_ABT_Y030XX067A is not set
# CONFIG_DRM_PANEL_ARM_VERSATILE is not set
# CONFIG_DRM_PANEL_ASUS_Z00T_TM5P5_NT35596 is not set
# CONFIG_DRM_PANEL_AUO_A030JTN01 is not set
# CONFIG_DRM_PANEL_BOE_BF060Y8M_AJ0 is not set
# CONFIG_DRM_PANEL_BOE_HIMAX8279D is not set
# CONFIG_DRM_PANEL_BOE_TD4320 is not set
# CONFIG_DRM_PANEL_BOE_TH101MB31UIG002_28A is not set
# CONFIG_DRM_PANEL_BOE_TV101WUM_NL6 is not set
# CONFIG_DRM_PANEL_BOE_TV101WUM_LL2 is not set
# CONFIG_DRM_PANEL_CHIPWEALTH_CH13726A is not set
# CONFIG_DRM_PANEL_EBBG_FT8719 is not set
# CONFIG_DRM_PANEL_ELIDA_KD35T133 is not set
# CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02 is not set
# CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D is not set
# CONFIG_DRM_PANEL_FOCALTECH_OTA7290B is not set
# CONFIG_DRM_PANEL_DSI_CM is not set
# CONFIG_DRM_PANEL_LVDS is not set
# CONFIG_DRM_PANEL_HIMAX_HX8279 is not set
# CONFIG_DRM_PANEL_HIMAX_HX83102 is not set
# CONFIG_DRM_PANEL_HIMAX_HX83112A is not set
# CONFIG_DRM_PANEL_HIMAX_HX83112B is not set
# CONFIG_DRM_PANEL_HIMAX_HX83121A is not set
# CONFIG_DRM_PANEL_HIMAX_HX8394 is not set
# CONFIG_DRM_PANEL_HYDIS_HV101HD1 is not set
# CONFIG_DRM_PANEL_ILITEK_IL9322 is not set
# CONFIG_DRM_PANEL_ILITEK_ILI9341 is not set
# CONFIG_DRM_PANEL_ILITEK_ILI9805 is not set
# CONFIG_DRM_PANEL_ILITEK_ILI9806E_DSI is not set
# CONFIG_DRM_PANEL_ILITEK_ILI9806E_SPI is not set
# CONFIG_DRM_PANEL_ILITEK_ILI9881C is not set
# CONFIG_DRM_PANEL_ILITEK_ILI9882T is not set
# CONFIG_DRM_PANEL_INNOLUX_EJ030NA is not set
# CONFIG_DRM_PANEL_INNOLUX_P079ZCA is not set
# CONFIG_DRM_PANEL_JADARD_JD9365DA_H3 is not set
# CONFIG_DRM_PANEL_JDI_LPM102A188A is not set
# CONFIG_DRM_PANEL_JDI_LT070ME05000 is not set
# CONFIG_DRM_PANEL_JDI_R63452 is not set
# CONFIG_DRM_PANEL_KHADAS_TS050 is not set
# CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04 is not set
# CONFIG_DRM_PANEL_LEADTEK_LTK050H3146W is not set
# CONFIG_DRM_PANEL_LEADTEK_LTK500HD1829 is not set
# CONFIG_DRM_PANEL_LINCOLNTECH_LCD197 is not set
# CONFIG_DRM_PANEL_LG_LB035Q02 is not set
# CONFIG_DRM_PANEL_LG_LD070WX3 is not set
# CONFIG_DRM_PANEL_LG_LG4573 is not set
# CONFIG_DRM_PANEL_LG_SW43408 is not set
# CONFIG_DRM_PANEL_LXD_M9189A is not set
# CONFIG_DRM_PANEL_MAGNACHIP_D53E6EA8966 is not set
# CONFIG_DRM_PANEL_MANTIX_MLAF057WE51 is not set
# CONFIG_DRM_PANEL_MOTOROLA_MOT is not set
# CONFIG_DRM_PANEL_NEC_NL8048HL11 is not set
# CONFIG_DRM_PANEL_NEWVISION_NV3051D is not set
# CONFIG_DRM_PANEL_NEWVISION_NV3052C is not set
# CONFIG_DRM_PANEL_NOVATEK_NT35510 is not set
# CONFIG_DRM_PANEL_NOVATEK_NT35532 is not set
# CONFIG_DRM_PANEL_NOVATEK_NT35560 is not set
# CONFIG_DRM_PANEL_NOVATEK_NT35950 is not set
# CONFIG_DRM_PANEL_NOVATEK_NT36523 is not set
# CONFIG_DRM_PANEL_NOVATEK_NT36672A is not set
# CONFIG_DRM_PANEL_NOVATEK_NT36672E is not set
# CONFIG_DRM_PANEL_NOVATEK_NT37700F is not set
# CONFIG_DRM_PANEL_NOVATEK_NT37801 is not set
# CONFIG_DRM_PANEL_NOVATEK_NT39016 is not set
# CONFIG_DRM_PANEL_OLIMEX_LCD_OLINUXINO is not set
# CONFIG_DRM_PANEL_ORISETECH_OTA5601A is not set
# CONFIG_DRM_PANEL_ORISETECH_OTM8009A is not set
# CONFIG_DRM_PANEL_OSD_OSD101T2587_53TS is not set
# CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00 is not set
# CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN is not set
# CONFIG_DRM_PANEL_RAYDIUM_RM67191 is not set
# CONFIG_DRM_PANEL_RAYDIUM_RM67200 is not set
# CONFIG_DRM_PANEL_RAYDIUM_RM68200 is not set
# CONFIG_DRM_PANEL_RAYDIUM_RM692E5 is not set
# CONFIG_DRM_PANEL_RAYDIUM_RM69380 is not set
# CONFIG_DRM_PANEL_RENESAS_R61307 is not set
# CONFIG_DRM_PANEL_RENESAS_R69328 is not set
# CONFIG_DRM_PANEL_RONBO_RB070D30 is not set
# CONFIG_DRM_PANEL_SAMSUNG_AMS581VF01 is not set
# CONFIG_DRM_PANEL_SAMSUNG_AMS639RQ08 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E88A0_AMS427AP24 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E88A0_AMS452EF01 is not set
# CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20 is not set
# CONFIG_DRM_PANEL_SAMSUNG_DB7430 is not set
# CONFIG_DRM_PANEL_SAMSUNG_LD9040 is not set
# CONFIG_DRM_PANEL_SAMSUNG_LTL106HL02 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E3FA7 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6D16D0 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6D27A1 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6D7AA0 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E3FC2X01 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E3HA8 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E63J0X03 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E63M0 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E8AA5X01_AMS561RA01 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E8FC0 is not set
# CONFIG_DRM_PANEL_SAMSUNG_SOFEF00 is not set
# CONFIG_DRM_PANEL_SEIKO_43WVF1G is not set
# CONFIG_DRM_PANEL_SHARP_LQ079L1SX01 is not set
# CONFIG_DRM_PANEL_SHARP_LQ101R1SX01 is not set
# CONFIG_DRM_PANEL_SHARP_LS037V7DW01 is not set
# CONFIG_DRM_PANEL_SHARP_LS043T1LE01 is not set
# CONFIG_DRM_PANEL_SHARP_LS060T1SX01 is not set
# CONFIG_DRM_PANEL_SITRONIX_ST7701 is not set
# CONFIG_DRM_PANEL_SITRONIX_ST7703 is not set
# CONFIG_DRM_PANEL_SITRONIX_ST7789V is not set
# CONFIG_DRM_PANEL_SONY_ACX565AKM is not set
# CONFIG_DRM_PANEL_SONY_TD4353_JDI is not set
# CONFIG_DRM_PANEL_SONY_TULIP_TRULY_NT35521 is not set
# CONFIG_DRM_PANEL_STARTEK_KD070FHFID015 is not set
CONFIG_DRM_PANEL_EDP=y
# CONFIG_DRM_PANEL_SIMPLE is not set
# CONFIG_DRM_PANEL_SUMMIT is not set
# CONFIG_DRM_PANEL_SYNAPTICS_R63353 is not set
# CONFIG_DRM_PANEL_SYNAPTICS_TDDI is not set
# CONFIG_DRM_PANEL_TDO_TL070WSH30 is not set
# CONFIG_DRM_PANEL_TPO_TD028TTEC1 is not set
# CONFIG_DRM_PANEL_TPO_TD043MTEA1 is not set
# CONFIG_DRM_PANEL_TPO_TPG110 is not set
# CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA is not set
# CONFIG_DRM_PANEL_VISIONOX_G2647FB105 is not set
# CONFIG_DRM_PANEL_VISIONOX_R66451 is not set
# CONFIG_DRM_PANEL_VISIONOX_RM69299 is not set
# CONFIG_DRM_PANEL_VISIONOX_RM692E5 is not set
# CONFIG_DRM_PANEL_VISIONOX_VTDR6130 is not set
# CONFIG_DRM_PANEL_WIDECHIPS_WS2401 is not set
# CONFIG_DRM_PANEL_XINPENG_XPP055C272 is not set
# end of Display Panels

# CONFIG_DRM_QXL is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_ST7571 is not set
# CONFIG_DRM_ST7586 is not set
# CONFIG_DRM_ST7735R is not set
# CONFIG_DRM_ST7920 is not set
# CONFIG_DRM_SSD130X is not set

#
# Drivers for system framebuffers
#
CONFIG_DRM_SYSFB_HELPER=y
CONFIG_DRM_SIMPLEDRM=y
# CONFIG_DRM_VESADRM is not set
# end of Drivers for system framebuffers

# CONFIG_DRM_APPLETBDRM is not set
# CONFIG_DRM_ARCPGU is not set
CONFIG_DRM_BOCHS=y
CONFIG_DRM_CIRRUS_QEMU=y
CONFIG_DRM_GM12U320=y
# CONFIG_DRM_PANEL_MIPI_DBI is not set
# CONFIG_DRM_PIXPAPER is not set
# CONFIG_TINYDRM_HX8357D is not set
# CONFIG_TINYDRM_ILI9163 is not set
# CONFIG_TINYDRM_ILI9225 is not set
# CONFIG_TINYDRM_ILI9341 is not set
# CONFIG_TINYDRM_ILI9486 is not set
# CONFIG_TINYDRM_MI0283QT is not set
# CONFIG_TINYDRM_REPAPER is not set
# CONFIG_TINYDRM_SHARP_MEMORY is not set
CONFIG_DRM_UDL=y
# CONFIG_DRM_VBOXVIDEO is not set
CONFIG_DRM_VGEM=y
CONFIG_DRM_VIRTIO_GPU=y
CONFIG_DRM_VIRTIO_GPU_KMS=y
# CONFIG_DRM_VKMS is not set
CONFIG_DRM_VMWGFX=y
# CONFIG_DRM_VMWGFX_MKSSTATS is not set
# CONFIG_DRM_XE is not set
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y

#
# Frame buffer Devices
#
CONFIG_FB=y
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
CONFIG_FB_VGA16=y
# CONFIG_FB_UVESA is not set
CONFIG_FB_VESA=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
CONFIG_FB_VIRTUAL=y
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_SSD1307 is not set
# CONFIG_FB_SM712 is not set
CONFIG_FB_CORE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB_DEVICE=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYSMEM_FOPS=y
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_IOMEM_FOPS=y
CONFIG_FB_IOMEM_HELPERS=y
CONFIG_FB_SYSMEM_HELPERS=y
CONFIG_FB_SYSMEM_HELPERS_DEFERRED=y
CONFIG_FB_TILEBLITTING=y
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
CONFIG_LCD_CLASS_DEVICE=y
# CONFIG_LCD_L4F00242T03 is not set
# CONFIG_LCD_LMS283GF05 is not set
# CONFIG_LCD_LTV350QV is not set
# CONFIG_LCD_ILI922X is not set
# CONFIG_LCD_ILI9320 is not set
# CONFIG_LCD_TDO24M is not set
# CONFIG_LCD_VGG2432A4 is not set
# CONFIG_LCD_PLATFORM is not set
# CONFIG_LCD_AMS369FG06 is not set
# CONFIG_LCD_LMS501KF03 is not set
# CONFIG_LCD_HX8357 is not set
# CONFIG_LCD_OTM3225A is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_AW99706 is not set
# CONFIG_BACKLIGHT_KTD253 is not set
# CONFIG_BACKLIGHT_KTD2801 is not set
# CONFIG_BACKLIGHT_KTZ8866 is not set
# CONFIG_BACKLIGHT_MAX25014 is not set
# CONFIG_BACKLIGHT_MT6370 is not set
# CONFIG_BACKLIGHT_APPLE is not set
# CONFIG_BACKLIGHT_QCOM_WLED is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3509 is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_PANDORA is not set
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_BACKLIGHT_ARCXCNN is not set
# CONFIG_BACKLIGHT_LED is not set
# end of Backlight & LCD device support

CONFIG_VGASTATE=y
CONFIG_VIDEOMODE_HELPERS=y
CONFIG_HDMI=y
# CONFIG_FIRMWARE_EDID is not set

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION is not set
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set
# end of Console display driver support

CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
CONFIG_LOGO_LINUX_MONO_FILE="drivers/video/logo/logo_linux_mono.pbm"
CONFIG_LOGO_LINUX_VGA16=y
CONFIG_LOGO_LINUX_VGA16_FILE="drivers/video/logo/logo_linux_vga16.ppm"
# CONFIG_LOGO_LINUX_CLUT224 is not set
# CONFIG_TRACE_GPU_MEM is not set
# end of Graphics support

# CONFIG_DRM_ACCEL is not set
CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_HWDEP=y
CONFIG_SND_SEQ_DEVICE=y
CONFIG_SND_RAWMIDI=y
CONFIG_SND_UMP=y
CONFIG_SND_UMP_LEGACY_RAWMIDI=y
CONFIG_SND_JACK=y
CONFIG_SND_JACK_INPUT_DEV=y
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_PCM_TIMER=y
CONFIG_SND_HRTIMER=y
# CONFIG_SND_DYNAMIC_MINORS is not set
# CONFIG_SND_SUPPORT_OLD_API is not set
CONFIG_SND_PROC_FS=y
CONFIG_SND_VERBOSE_PROCFS=y
CONFIG_SND_CTL_FAST_LOOKUP=y
CONFIG_SND_DEBUG=y
# CONFIG_SND_DEBUG_VERBOSE is not set
CONFIG_SND_PCM_XRUN_DEBUG=y
# CONFIG_SND_CTL_INPUT_VALIDATION is not set
# CONFIG_SND_CTL_DEBUG is not set
# CONFIG_SND_JACK_INJECTION_DEBUG is not set
# CONFIG_SND_UTIMER is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_DMA_SGBUF=y
CONFIG_SND_CTL_LED=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_SEQ_DUMMY=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
CONFIG_SND_SEQ_MIDI_EVENT=y
CONFIG_SND_SEQ_MIDI=y
CONFIG_SND_SEQ_VIRMIDI=y
# CONFIG_SND_SEQ_UMP is not set
CONFIG_SND_DRIVERS=y
# CONFIG_SND_PCSP is not set
CONFIG_SND_DUMMY=y
CONFIG_SND_ALOOP=y
# CONFIG_SND_PCMTEST is not set
CONFIG_SND_VIRMIDI=y
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_MTS64 is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_SERIAL_GENERIC is not set
# CONFIG_SND_MPU401 is not set
# CONFIG_SND_PORTMAN2X4 is not set
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ASIHPI is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SE6X is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set

#
# HD-Audio
#
CONFIG_SND_HDA=y
CONFIG_SND_HDA_HWDEP=y
CONFIG_SND_HDA_RECONFIG=y
CONFIG_SND_HDA_INPUT_BEEP=y
CONFIG_SND_HDA_INPUT_BEEP_MODE=1
CONFIG_SND_HDA_PATCH_LOADER=y
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=0
# CONFIG_SND_HDA_CTL_DEV_ID is not set
CONFIG_SND_HDA_PREALLOC_SIZE=0
CONFIG_SND_HDA_INTEL=y
# CONFIG_SND_HDA_ACPI is not set
CONFIG_SND_HDA_GENERIC_LEDS=y
CONFIG_SND_HDA_CODEC_ANALOG=y
CONFIG_SND_HDA_CODEC_SIGMATEL=y
CONFIG_SND_HDA_CODEC_VIA=y
CONFIG_SND_HDA_CODEC_CONEXANT=y
# CONFIG_SND_HDA_CODEC_SENARYTECH is not set
CONFIG_SND_HDA_CODEC_CA0110=y
CONFIG_SND_HDA_CODEC_CA0132=y
# CONFIG_SND_HDA_CODEC_CA0132_DSP is not set
CONFIG_SND_HDA_CODEC_CMEDIA=y
# CONFIG_SND_HDA_CODEC_CM9825 is not set
CONFIG_SND_HDA_CODEC_SI3054=y
CONFIG_SND_HDA_GENERIC=y
CONFIG_SND_HDA_CODEC_REALTEK=y
# CONFIG_SND_HDA_CODEC_ALC260 is not set
# CONFIG_SND_HDA_CODEC_ALC262 is not set
# CONFIG_SND_HDA_CODEC_ALC268 is not set
# CONFIG_SND_HDA_CODEC_ALC269 is not set
# CONFIG_SND_HDA_CODEC_ALC662 is not set
# CONFIG_SND_HDA_CODEC_ALC680 is not set
# CONFIG_SND_HDA_CODEC_ALC861 is not set
# CONFIG_SND_HDA_CODEC_ALC861VD is not set
# CONFIG_SND_HDA_CODEC_ALC880 is not set
# CONFIG_SND_HDA_CODEC_ALC882 is not set
CONFIG_SND_HDA_CODEC_CIRRUS=y
# CONFIG_SND_HDA_CODEC_CS420X is not set
# CONFIG_SND_HDA_CODEC_CS421X is not set
# CONFIG_SND_HDA_CODEC_CS8409 is not set
CONFIG_SND_HDA_CODEC_HDMI=y
# CONFIG_SND_HDA_CODEC_HDMI_GENERIC is not set
# CONFIG_SND_HDA_CODEC_HDMI_SIMPLE is not set
# CONFIG_SND_HDA_CODEC_HDMI_INTEL is not set
# CONFIG_SND_HDA_CODEC_HDMI_ATI is not set
# CONFIG_SND_HDA_CODEC_HDMI_NVIDIA is not set
# CONFIG_SND_HDA_CODEC_HDMI_NVIDIA_MCP is not set
# CONFIG_SND_HDA_CODEC_HDMI_TEGRA is not set
# CONFIG_SND_HDA_SCODEC_CS35L56_I2C is not set
# CONFIG_SND_HDA_SCODEC_CS35L56_SPI is not set
CONFIG_SND_HDA_CORE=y
CONFIG_SND_HDA_COMPONENT=y
CONFIG_SND_HDA_I915=y
CONFIG_SND_INTEL_NHLT=y
CONFIG_SND_INTEL_DSP_CONFIG=y
CONFIG_SND_INTEL_SOUNDWIRE_ACPI=y
# end of HD-Audio

# CONFIG_SND_SPI is not set
CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=y
CONFIG_SND_USB_AUDIO_MIDI_V2=y
CONFIG_SND_USB_AUDIO_USE_MEDIA_CONTROLLER=y
CONFIG_SND_USB_UA101=y
CONFIG_SND_USB_USX2Y=y
CONFIG_SND_USB_CAIAQ=y
CONFIG_SND_USB_CAIAQ_INPUT=y
CONFIG_SND_USB_US122L=y
# CONFIG_SND_USB_US144MKII is not set
CONFIG_SND_USB_6FIRE=y
CONFIG_SND_USB_HIFACE=y
CONFIG_SND_BCD2000=y
CONFIG_SND_USB_LINE6=y
CONFIG_SND_USB_POD=y
CONFIG_SND_USB_PODHD=y
CONFIG_SND_USB_TONEPORT=y
CONFIG_SND_USB_VARIAX=y
# CONFIG_SND_FIREWIRE is not set
CONFIG_SND_PCMCIA=y
# CONFIG_SND_VXPOCKET is not set
# CONFIG_SND_PDAUDIOCF is not set
CONFIG_SND_SOC=y
# CONFIG_SND_SOC_USB is not set

#
# Analog Devices
#
# CONFIG_SND_SOC_ADI_AXI_I2S is not set
# CONFIG_SND_SOC_ADI_AXI_SPDIF is not set
# end of Analog Devices

#
# AMD
#
# CONFIG_SND_SOC_AMD_ACP is not set
# CONFIG_SND_SOC_AMD_ACP3x is not set
# CONFIG_SND_SOC_AMD_RENOIR is not set
# CONFIG_SND_SOC_AMD_ACP5x is not set
# CONFIG_SND_SOC_AMD_ACP6x is not set
# CONFIG_SND_AMD_ACP_CONFIG is not set
# CONFIG_SND_SOC_AMD_ACP_COMMON is not set
# end of AMD

#
# Apple
#
# end of Apple

#
# Atmel
#
# CONFIG_SND_SOC_MIKROE_PROTO is not set
# end of Atmel

#
# Au1x
#
# end of Au1x

#
# Broadcom
#
# CONFIG_SND_BCM63XX_I2S_WHISTLER is not set
# end of Broadcom

#
# Cirrus Logic
#
# end of Cirrus Logic

#
# DesignWare
#
# CONFIG_SND_DESIGNWARE_I2S is not set
# end of DesignWare

#
# Freescale
#

#
# Common SoC Audio options for Freescale CPUs:
#
# CONFIG_SND_SOC_FSL_ASRC is not set
# CONFIG_SND_SOC_FSL_SAI is not set
# CONFIG_SND_SOC_FSL_AUDMIX is not set
# CONFIG_SND_SOC_FSL_SSI is not set
# CONFIG_SND_SOC_FSL_SPDIF is not set
# CONFIG_SND_SOC_FSL_ESAI is not set
# CONFIG_SND_SOC_FSL_MICFIL is not set
# CONFIG_SND_SOC_FSL_XCVR is not set
# CONFIG_SND_SOC_IMX_AUDMUX is not set
# end of Freescale

#
# Google
#
# CONFIG_SND_SOC_CHV3_I2S is not set
# end of Google

#
# Hisilicon
#
# CONFIG_SND_I2S_HI6210_I2S is not set
# end of Hisilicon

#
# JZ4740
#
# end of JZ4740

#
# Kirkwood
#
# end of Kirkwood

#
# Loongson
#
# end of Loongson

#
# Intel
#
# CONFIG_SND_SOC_INTEL_SST_TOPLEVEL is not set
# CONFIG_SND_SOC_INTEL_AVS is not set
# end of Intel

#
# Mediatek
#
# CONFIG_SND_SOC_MTK_BTCVSD is not set
# end of Mediatek

#
# PXA
#
# end of PXA

#
# SoundWire (SDCA)
#
# CONFIG_SND_SOC_SDCA is not set
CONFIG_SND_SOC_SDCA_OPTIONAL=y
# end of SoundWire (SDCA)

#
# ST SPEAr
#
# end of ST SPEAr

#
# Spreadtrum
#
# end of Spreadtrum

#
# STMicroelectronics STM32
#
# end of STMicroelectronics STM32

#
# Tegra
#
# end of Tegra

#
# Xilinx
#
# CONFIG_SND_SOC_XILINX_I2S is not set
# CONFIG_SND_SOC_XILINX_AUDIO_FORMATTER is not set
# CONFIG_SND_SOC_XILINX_SPDIF is not set
# end of Xilinx

#
# Xtensa
#
# CONFIG_SND_SOC_XTFPGA_I2S is not set
# end of Xtensa

# CONFIG_SND_SOC_SOF_TOPLEVEL is not set
CONFIG_SND_SOC_I2C_AND_SPI=y

#
# CODEC drivers
#
# CONFIG_SND_SOC_AC97_CODEC is not set
# CONFIG_SND_SOC_ADAU1372_I2C is not set
# CONFIG_SND_SOC_ADAU1372_SPI is not set
# CONFIG_SND_SOC_ADAU1373 is not set
# CONFIG_SND_SOC_ADAU1701 is not set
# CONFIG_SND_SOC_ADAU1761_I2C is not set
# CONFIG_SND_SOC_ADAU1761_SPI is not set
# CONFIG_SND_SOC_ADAU7002 is not set
# CONFIG_SND_SOC_ADAU7118_HW is not set
# CONFIG_SND_SOC_ADAU7118_I2C is not set
# CONFIG_SND_SOC_AK4104 is not set
# CONFIG_SND_SOC_AK4118 is not set
# CONFIG_SND_SOC_AK4375 is not set
# CONFIG_SND_SOC_AK4458 is not set
# CONFIG_SND_SOC_AK4554 is not set
# CONFIG_SND_SOC_AK4613 is not set
# CONFIG_SND_SOC_AK4619 is not set
# CONFIG_SND_SOC_AK4642 is not set
# CONFIG_SND_SOC_AK5386 is not set
# CONFIG_SND_SOC_AK5558 is not set
# CONFIG_SND_SOC_ALC5623 is not set
# CONFIG_SND_SOC_AUDIO_IIO_AUX is not set
# CONFIG_SND_SOC_AW8738 is not set
# CONFIG_SND_SOC_AW88395 is not set
# CONFIG_SND_SOC_AW88166 is not set
# CONFIG_SND_SOC_AW88261 is not set
# CONFIG_SND_SOC_AW88081 is not set
# CONFIG_SND_SOC_AW87390 is not set
# CONFIG_SND_SOC_AW88399 is not set
# CONFIG_SND_SOC_BD28623 is not set
# CONFIG_SND_SOC_BT_SCO is not set
# CONFIG_SND_SOC_CHV3_CODEC is not set
# CONFIG_SND_SOC_CS35L32 is not set
# CONFIG_SND_SOC_CS35L33 is not set
# CONFIG_SND_SOC_CS35L34 is not set
# CONFIG_SND_SOC_CS35L35 is not set
# CONFIG_SND_SOC_CS35L36 is not set
# CONFIG_SND_SOC_CS35L41_SPI is not set
# CONFIG_SND_SOC_CS35L41_I2C is not set
# CONFIG_SND_SOC_CS35L45_SPI is not set
# CONFIG_SND_SOC_CS35L45_I2C is not set
# CONFIG_SND_SOC_CS35L56_I2C is not set
# CONFIG_SND_SOC_CS35L56_SPI is not set
# CONFIG_SND_SOC_CS35L56_SDW is not set
# CONFIG_SND_SOC_CS42L42 is not set
# CONFIG_SND_SOC_CS42L42_SDW is not set
# CONFIG_SND_SOC_CS42L51_I2C is not set
# CONFIG_SND_SOC_CS42L52 is not set
# CONFIG_SND_SOC_CS42L56 is not set
# CONFIG_SND_SOC_CS42L73 is not set
# CONFIG_SND_SOC_CS42L83 is not set
# CONFIG_SND_SOC_CS42L84 is not set
# CONFIG_SND_SOC_CS4234 is not set
# CONFIG_SND_SOC_CS4265 is not set
# CONFIG_SND_SOC_CS4270 is not set
# CONFIG_SND_SOC_CS4271_I2C is not set
# CONFIG_SND_SOC_CS4271_SPI is not set
# CONFIG_SND_SOC_CS42XX8_SPI is not set
# CONFIG_SND_SOC_CS42XX8_I2C is not set
# CONFIG_SND_SOC_CS43130 is not set
# CONFIG_SND_SOC_CS4341 is not set
# CONFIG_SND_SOC_CS4349 is not set
# CONFIG_SND_SOC_CS48L32 is not set
# CONFIG_SND_SOC_CS53L30 is not set
# CONFIG_SND_SOC_CS530X_I2C is not set
# CONFIG_SND_SOC_CS530X_SPI is not set
# CONFIG_SND_SOC_CX2072X is not set
# CONFIG_SND_SOC_DA7213 is not set
# CONFIG_SND_SOC_DMIC is not set
# CONFIG_SND_SOC_ES7134 is not set
# CONFIG_SND_SOC_ES7241 is not set
# CONFIG_SND_SOC_ES8311 is not set
# CONFIG_SND_SOC_ES8316 is not set
# CONFIG_SND_SOC_ES8323 is not set
# CONFIG_SND_SOC_ES8326 is not set
# CONFIG_SND_SOC_ES8328_I2C is not set
# CONFIG_SND_SOC_ES8328_SPI is not set
# CONFIG_SND_SOC_ES8375 is not set
# CONFIG_SND_SOC_ES8389 is not set
# CONFIG_SND_SOC_FS210X is not set
# CONFIG_SND_SOC_GTM601 is not set
# CONFIG_SND_SOC_HDA is not set
# CONFIG_SND_SOC_ICS43432 is not set
# CONFIG_SND_SOC_IDT821034 is not set
# CONFIG_SND_SOC_MAX98088 is not set
# CONFIG_SND_SOC_MAX98090 is not set
# CONFIG_SND_SOC_MAX98357A is not set
# CONFIG_SND_SOC_MAX98504 is not set
# CONFIG_SND_SOC_MAX9867 is not set
# CONFIG_SND_SOC_MAX98927 is not set
# CONFIG_SND_SOC_MAX98520 is not set
# CONFIG_SND_SOC_MAX98363 is not set
# CONFIG_SND_SOC_MAX98373_I2C is not set
# CONFIG_SND_SOC_MAX98373_SDW is not set
# CONFIG_SND_SOC_MAX98388 is not set
# CONFIG_SND_SOC_MAX98390 is not set
# CONFIG_SND_SOC_MAX98396 is not set
# CONFIG_SND_SOC_MAX9860 is not set
# CONFIG_SND_SOC_MSM8916_WCD_DIGITAL is not set
# CONFIG_SND_SOC_PCM1681 is not set
# CONFIG_SND_SOC_PCM1754 is not set
# CONFIG_SND_SOC_PCM1789_I2C is not set
# CONFIG_SND_SOC_PCM179X_I2C is not set
# CONFIG_SND_SOC_PCM179X_SPI is not set
# CONFIG_SND_SOC_PCM186X_I2C is not set
# CONFIG_SND_SOC_PCM186X_SPI is not set
# CONFIG_SND_SOC_PCM3060_I2C is not set
# CONFIG_SND_SOC_PCM3060_SPI is not set
# CONFIG_SND_SOC_PCM3168A_I2C is not set
# CONFIG_SND_SOC_PCM3168A_SPI is not set
# CONFIG_SND_SOC_PCM5102A is not set
# CONFIG_SND_SOC_PCM512x_I2C is not set
# CONFIG_SND_SOC_PCM512x_SPI is not set
# CONFIG_SND_SOC_PCM6240 is not set
# CONFIG_SND_SOC_PEB2466 is not set
# CONFIG_SND_SOC_PM4125_SDW is not set
# CONFIG_SND_SOC_RT1017_SDCA_SDW is not set
# CONFIG_SND_SOC_RT1308_SDW is not set
# CONFIG_SND_SOC_RT1316_SDW is not set
# CONFIG_SND_SOC_RT1318_SDW is not set
# CONFIG_SND_SOC_RT1320_SDW is not set
# CONFIG_SND_SOC_RT5575 is not set
# CONFIG_SND_SOC_RT5616 is not set
# CONFIG_SND_SOC_RT5631 is not set
# CONFIG_SND_SOC_RT5640 is not set
# CONFIG_SND_SOC_RT5645 is not set
# CONFIG_SND_SOC_RT5659 is not set
# CONFIG_SND_SOC_RT5682_SDW is not set
# CONFIG_SND_SOC_RT700_SDW is not set
# CONFIG_SND_SOC_RT711_SDW is not set
# CONFIG_SND_SOC_RT711_SDCA_SDW is not set
# CONFIG_SND_SOC_RT712_SDCA_SDW is not set
# CONFIG_SND_SOC_RT712_SDCA_DMIC_SDW is not set
# CONFIG_SND_SOC_RT721_SDCA_SDW is not set
# CONFIG_SND_SOC_RT722_SDCA_SDW is not set
# CONFIG_SND_SOC_RT715_SDW is not set
# CONFIG_SND_SOC_RT715_SDCA_SDW is not set
# CONFIG_SND_SOC_RT9120 is not set
# CONFIG_SND_SOC_RT9123 is not set
# CONFIG_SND_SOC_RT9123P is not set
# CONFIG_SND_SOC_RTQ9124 is not set
# CONFIG_SND_SOC_RTQ9128 is not set
# CONFIG_SND_SOC_SDW_MOCKUP is not set
# CONFIG_SND_SOC_SGTL5000 is not set
# CONFIG_SND_SOC_SIMPLE_AMPLIFIER is not set
# CONFIG_SND_SOC_SIMPLE_MUX is not set
# CONFIG_SND_SOC_SMA1303 is not set
# CONFIG_SND_SOC_SMA1307 is not set
# CONFIG_SND_SOC_SPDIF is not set
# CONFIG_SND_SOC_SRC4XXX_I2C is not set
# CONFIG_SND_SOC_SSM2305 is not set
# CONFIG_SND_SOC_SSM2518 is not set
# CONFIG_SND_SOC_SSM2602_SPI is not set
# CONFIG_SND_SOC_SSM2602_I2C is not set
# CONFIG_SND_SOC_SSM3515 is not set
# CONFIG_SND_SOC_SSM4567 is not set
# CONFIG_SND_SOC_STA32X is not set
# CONFIG_SND_SOC_STA350 is not set
# CONFIG_SND_SOC_STI_SAS is not set
# CONFIG_SND_SOC_TAS2552 is not set
# CONFIG_SND_SOC_TAS2562 is not set
# CONFIG_SND_SOC_TAS2764 is not set
# CONFIG_SND_SOC_TAS2770 is not set
# CONFIG_SND_SOC_TAS2780 is not set
# CONFIG_SND_SOC_TAS2781_I2C is not set
# CONFIG_SND_SOC_TAS5086 is not set
# CONFIG_SND_SOC_TAS571X is not set
# CONFIG_SND_SOC_TAS5720 is not set
# CONFIG_SND_SOC_TAS5805M is not set
# CONFIG_SND_SOC_TAS6424 is not set
# CONFIG_SND_SOC_TAS675X is not set
# CONFIG_SND_SOC_TDA7419 is not set
# CONFIG_SND_SOC_TFA9879 is not set
# CONFIG_SND_SOC_TFA989X is not set
# CONFIG_SND_SOC_TLV320ADC3XXX is not set
# CONFIG_SND_SOC_TLV320AIC23_I2C is not set
# CONFIG_SND_SOC_TLV320AIC23_SPI is not set
# CONFIG_SND_SOC_TLV320AIC31XX is not set
# CONFIG_SND_SOC_TLV320AIC32X4_I2C is not set
# CONFIG_SND_SOC_TLV320AIC32X4_SPI is not set
# CONFIG_SND_SOC_TLV320AIC3X_I2C is not set
# CONFIG_SND_SOC_TLV320AIC3X_SPI is not set
# CONFIG_SND_SOC_TLV320ADCX140 is not set
# CONFIG_SND_SOC_TS3A227E is not set
# CONFIG_SND_SOC_TSCS42XX is not set
# CONFIG_SND_SOC_TSCS454 is not set
# CONFIG_SND_SOC_UDA1334 is not set
# CONFIG_SND_SOC_UDA1342 is not set
# CONFIG_SND_SOC_UDA1380 is not set
# CONFIG_SND_SOC_WCD937X_SDW is not set
# CONFIG_SND_SOC_WCD938X_SDW is not set
# CONFIG_SND_SOC_WCD939X_SDW is not set
# CONFIG_SND_SOC_WM8510 is not set
# CONFIG_SND_SOC_WM8523 is not set
# CONFIG_SND_SOC_WM8524 is not set
# CONFIG_SND_SOC_WM8580 is not set
# CONFIG_SND_SOC_WM8711 is not set
# CONFIG_SND_SOC_WM8728 is not set
# CONFIG_SND_SOC_WM8731_I2C is not set
# CONFIG_SND_SOC_WM8731_SPI is not set
# CONFIG_SND_SOC_WM8737 is not set
# CONFIG_SND_SOC_WM8741 is not set
# CONFIG_SND_SOC_WM8750 is not set
# CONFIG_SND_SOC_WM8753 is not set
# CONFIG_SND_SOC_WM8770 is not set
# CONFIG_SND_SOC_WM8776 is not set
# CONFIG_SND_SOC_WM8782 is not set
# CONFIG_SND_SOC_WM8804_I2C is not set
# CONFIG_SND_SOC_WM8804_SPI is not set
# CONFIG_SND_SOC_WM8903 is not set
# CONFIG_SND_SOC_WM8904 is not set
# CONFIG_SND_SOC_WM8940 is not set
# CONFIG_SND_SOC_WM8960 is not set
# CONFIG_SND_SOC_WM8961 is not set
# CONFIG_SND_SOC_WM8962 is not set
# CONFIG_SND_SOC_WM8974 is not set
# CONFIG_SND_SOC_WM8978 is not set
# CONFIG_SND_SOC_WM8985 is not set
# CONFIG_SND_SOC_WSA881X is not set
# CONFIG_SND_SOC_WSA883X is not set
# CONFIG_SND_SOC_WSA884X is not set
# CONFIG_SND_SOC_ZL38060 is not set
# CONFIG_SND_SOC_MAX9759 is not set
# CONFIG_SND_SOC_MT6351 is not set
# CONFIG_SND_SOC_MT6357 is not set
# CONFIG_SND_SOC_MT6358 is not set
# CONFIG_SND_SOC_MT6660 is not set
# CONFIG_SND_SOC_NAU8315 is not set
# CONFIG_SND_SOC_NAU8325 is not set
# CONFIG_SND_SOC_NAU8540 is not set
# CONFIG_SND_SOC_NAU8810 is not set
# CONFIG_SND_SOC_NAU8821 is not set
# CONFIG_SND_SOC_NAU8822 is not set
# CONFIG_SND_SOC_NAU8824 is not set
# CONFIG_SND_SOC_NTP8918 is not set
# CONFIG_SND_SOC_NTP8835 is not set
# CONFIG_SND_SOC_TPA6130A2 is not set
# CONFIG_SND_SOC_LPASS_WSA_MACRO is not set
# CONFIG_SND_SOC_LPASS_VA_MACRO is not set
# CONFIG_SND_SOC_LPASS_RX_MACRO is not set
# CONFIG_SND_SOC_LPASS_TX_MACRO is not set
# end of CODEC drivers

#
# Generic drivers
#
# CONFIG_SND_SIMPLE_CARD is not set
# CONFIG_SND_AUDIO_GRAPH_CARD is not set
# CONFIG_SND_AUDIO_GRAPH_CARD2 is not set
# CONFIG_SND_TEST_COMPONENT is not set
# end of Generic drivers

CONFIG_SND_X86=y
# CONFIG_HDMI_LPE_AUDIO is not set
CONFIG_SND_VIRTIO=y
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
CONFIG_HID_BATTERY_STRENGTH=y
CONFIG_HIDRAW=y
CONFIG_UHID=y
CONFIG_HID_GENERIC=y
CONFIG_HID_HAPTIC=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
CONFIG_HID_ACCUTOUCH=y
CONFIG_HID_ACRUX=y
CONFIG_HID_ACRUX_FF=y
CONFIG_HID_APPLE=y
CONFIG_HID_APPLEIR=y
# CONFIG_HID_APPLETB_BL is not set
# CONFIG_HID_APPLETB_KBD is not set
CONFIG_HID_ASUS=y
CONFIG_HID_AUREAL=y
CONFIG_HID_BELKIN=y
CONFIG_HID_BETOP_FF=y
CONFIG_HID_BIGBEN_FF=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
CONFIG_HID_CORSAIR=y
CONFIG_HID_COUGAR=y
CONFIG_HID_MACALLY=y
CONFIG_HID_PRODIKEYS=y
CONFIG_HID_CMEDIA=y
CONFIG_HID_CP2112=y
CONFIG_HID_CREATIVE_SB0540=y
CONFIG_HID_CYPRESS=y
CONFIG_HID_DRAGONRISE=y
CONFIG_DRAGONRISE_FF=y
CONFIG_HID_EMS_FF=y
CONFIG_HID_ELAN=y
CONFIG_HID_ELECOM=y
CONFIG_HID_ELO=y
CONFIG_HID_EVISION=y
CONFIG_HID_EZKEY=y
CONFIG_HID_FT260=y
CONFIG_HID_GEMBIRD=y
CONFIG_HID_GFRM=y
CONFIG_HID_GLORIOUS=y
CONFIG_HID_HOLTEK=y
CONFIG_HOLTEK_FF=y
CONFIG_HID_VIVALDI_COMMON=y
# CONFIG_HID_GOODIX_SPI is not set
CONFIG_HID_GOOGLE_STADIA_FF=y
CONFIG_HID_VIVALDI=y
CONFIG_HID_GT683R=y
CONFIG_HID_KEYTOUCH=y
CONFIG_HID_KYE=y
# CONFIG_HID_KYSONA is not set
CONFIG_HID_UCLOGIC=y
CONFIG_HID_WALTOP=y
CONFIG_HID_VIEWSONIC=y
CONFIG_HID_VRC2=y
CONFIG_HID_XIAOMI=y
CONFIG_HID_GYRATION=y
CONFIG_HID_ICADE=y
CONFIG_HID_ITE=y
CONFIG_HID_JABRA=y
CONFIG_HID_TWINHAN=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_LCPOWER=y
CONFIG_HID_LED=y
CONFIG_HID_LENOVO=y
# CONFIG_HID_LENOVO_GO is not set
# CONFIG_HID_LENOVO_GO_S is not set
CONFIG_HID_LETSKETCH=y
CONFIG_HID_LOGITECH=y
CONFIG_HID_LOGITECH_DJ=y
CONFIG_HID_LOGITECH_HIDPP=y
CONFIG_LOGITECH_FF=y
CONFIG_LOGIRUMBLEPAD2_FF=y
CONFIG_LOGIG940_FF=y
CONFIG_LOGIWHEELS_FF=y
CONFIG_HID_MAGICMOUSE=y
CONFIG_HID_MALTRON=y
CONFIG_HID_MAYFLASH=y
CONFIG_HID_MEGAWORLD_FF=y
# CONFIG_HID_RAKK is not set
CONFIG_HID_REDRAGON=y
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
CONFIG_HID_MULTITOUCH=y
CONFIG_HID_NINTENDO=y
CONFIG_NINTENDO_FF=y
CONFIG_HID_NTI=y
CONFIG_HID_NTRIG=y
CONFIG_HID_NVIDIA_SHIELD=y
CONFIG_NVIDIA_SHIELD_FF=y
CONFIG_HID_ORTEK=y
# CONFIG_HID_OXP is not set
CONFIG_HID_PANTHERLORD=y
CONFIG_PANTHERLORD_FF=y
CONFIG_HID_PENMOUNT=y
CONFIG_HID_PETALYNX=y
CONFIG_HID_PICOLCD=y
CONFIG_HID_PICOLCD_FB=y
CONFIG_HID_PICOLCD_BACKLIGHT=y
CONFIG_HID_PICOLCD_LCD=y
CONFIG_HID_PICOLCD_LEDS=y
CONFIG_HID_PICOLCD_CIR=y
CONFIG_HID_PLANTRONICS=y
CONFIG_HID_PLAYSTATION=y
CONFIG_PLAYSTATION_FF=y
CONFIG_HID_PXRC=y
# CONFIG_HID_RAPOO is not set
CONFIG_HID_RAZER=y
CONFIG_HID_PRIMAX=y
CONFIG_HID_RETRODE=y
CONFIG_HID_ROCCAT=y
CONFIG_HID_SAITEK=y
CONFIG_HID_SAMSUNG=y
CONFIG_HID_SEMITEK=y
CONFIG_HID_SIGMAMICRO=y
CONFIG_HID_SONY=y
CONFIG_SONY_FF=y
CONFIG_HID_SPEEDLINK=y
CONFIG_HID_STEAM=y
CONFIG_STEAM_FF=y
CONFIG_HID_STEELSERIES=y
CONFIG_HID_SUNPLUS=y
CONFIG_HID_RMI=y
CONFIG_HID_GREENASIA=y
CONFIG_GREENASIA_FF=y
CONFIG_HID_SMARTJOYPLUS=y
CONFIG_SMARTJOYPLUS_FF=y
CONFIG_HID_TIVO=y
CONFIG_HID_TOPSEED=y
CONFIG_HID_TOPRE=y
CONFIG_HID_THINGM=y
CONFIG_HID_THRUSTMASTER=y
CONFIG_THRUSTMASTER_FF=y
CONFIG_HID_UDRAW_PS3=y
CONFIG_HID_U2FZERO=y
# CONFIG_HID_UNIVERSAL_PIDFF is not set
CONFIG_HID_WACOM=y
CONFIG_HID_WIIMOTE=y
# CONFIG_HID_WINWING is not set
CONFIG_HID_XINMO=y
CONFIG_HID_ZEROPLUS=y
CONFIG_ZEROPLUS_FF=y
CONFIG_HID_ZYDACRON=y
CONFIG_HID_SENSOR_HUB=y
CONFIG_HID_SENSOR_CUSTOM_SENSOR=y
CONFIG_HID_ALPS=y
CONFIG_HID_MCP2200=y
CONFIG_HID_MCP2221=y
CONFIG_HID_HUAWEI=y
# end of Special HID drivers

#
# HID-BPF support
#
# end of HID-BPF support

CONFIG_I2C_HID=y
CONFIG_I2C_HID_ACPI=y
CONFIG_I2C_HID_OF=y
# CONFIG_I2C_HID_OF_ELAN is not set
# CONFIG_I2C_HID_OF_GOODIX is not set
CONFIG_I2C_HID_CORE=y

#
# Intel ISH HID support
#
CONFIG_INTEL_ISH_HID=y
CONFIG_INTEL_ISH_FIRMWARE_DOWNLOADER=y
# end of Intel ISH HID support

#
# AMD SFH HID Support
#
CONFIG_AMD_SFH_HID=y
# end of AMD SFH HID Support

#
# Surface System Aggregator Module HID support
#
CONFIG_SURFACE_HID=y
CONFIG_SURFACE_KBD=y
# end of Surface System Aggregator Module HID support

CONFIG_SURFACE_HID_CORE=y

#
# Intel THC HID Support
#
# CONFIG_INTEL_THC_HID is not set
# end of Intel THC HID Support

#
# USB HID support
#
CONFIG_USB_HID=y
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
# end of USB HID support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
CONFIG_USB_LED_TRIG=y
CONFIG_USB_ULPI_BUS=y
CONFIG_USB_CONN_GPIO=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_PCI=y
CONFIG_USB_PCI_AMD=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
CONFIG_USB_FEW_INIT_RETRIES=y
CONFIG_USB_DYNAMIC_MINORS=y
CONFIG_USB_OTG=y
# CONFIG_USB_OTG_PRODUCTLIST is not set
# CONFIG_USB_OTG_DISABLE_EXTERNAL_HUB is not set
CONFIG_USB_OTG_FSM=y
CONFIG_USB_LEDS_TRIGGER_USBPORT=y
CONFIG_USB_AUTOSUSPEND_DELAY=2
CONFIG_USB_DEFAULT_AUTHORIZATION_MODE=1
CONFIG_USB_MON=y

#
# USB Host Controller Drivers
#
CONFIG_USB_C67X00_HCD=y
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_XHCI_DBGCAP=y
CONFIG_USB_XHCI_PCI=y
CONFIG_USB_XHCI_PCI_RENESAS=y
CONFIG_USB_XHCI_PLATFORM=y
# CONFIG_USB_XHCI_SIDEBAND is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
CONFIG_USB_EHCI_FSL=y
CONFIG_USB_EHCI_HCD_PLATFORM=y
CONFIG_USB_OXU210HP_HCD=y
CONFIG_USB_ISP116X_HCD=y
CONFIG_USB_MAX3421_HCD=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_SSB is not set
CONFIG_USB_OHCI_HCD_PLATFORM=y
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_SL811_HCD=y
CONFIG_USB_SL811_HCD_ISO=y
CONFIG_USB_SL811_CS=y
CONFIG_USB_R8A66597_HCD=y
CONFIG_USB_HCD_BCMA=y
CONFIG_USB_HCD_SSB=y
# CONFIG_USB_HCD_TEST_MODE is not set

#
# USB Device Class drivers
#
CONFIG_USB_ACM=y
CONFIG_USB_PRINTER=y
CONFIG_USB_WDM=y
CONFIG_USB_TMC=y

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
CONFIG_USB_STORAGE_REALTEK=y
CONFIG_REALTEK_AUTOPM=y
CONFIG_USB_STORAGE_DATAFAB=y
CONFIG_USB_STORAGE_FREECOM=y
CONFIG_USB_STORAGE_ISD200=y
CONFIG_USB_STORAGE_USBAT=y
CONFIG_USB_STORAGE_SDDR09=y
CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_STORAGE_JUMPSHOT=y
CONFIG_USB_STORAGE_ALAUDA=y
CONFIG_USB_STORAGE_ONETOUCH=y
CONFIG_USB_STORAGE_KARMA=y
CONFIG_USB_STORAGE_CYPRESS_ATACB=y
CONFIG_USB_STORAGE_ENE_UB6250=y
CONFIG_USB_UAS=y

#
# USB Imaging devices
#
CONFIG_USB_MDC800=y
CONFIG_USB_MICROTEK=y
CONFIG_USBIP_CORE=y
CONFIG_USBIP_VHCI_HCD=y
CONFIG_USBIP_VHCI_HC_PORTS=8
CONFIG_USBIP_VHCI_NR_HCS=16
CONFIG_USBIP_HOST=y
CONFIG_USBIP_VUDC=y
# CONFIG_USBIP_DEBUG is not set

#
# USB dual-mode controller drivers
#
CONFIG_USB_CDNS_SUPPORT=y
CONFIG_USB_CDNS3=y
CONFIG_USB_CDNS3_HOST=y
CONFIG_USB_CDNS3_GADGET=y

#
# Platform glue driver support
#
CONFIG_USB_CDNS3_PCI_WRAP=y
CONFIG_USB_CDNSP_PCI=y
CONFIG_USB_MUSB_HDRC=y
# CONFIG_USB_MUSB_HOST is not set
# CONFIG_USB_MUSB_GADGET is not set
CONFIG_USB_MUSB_DUAL_ROLE=y

#
# Platform Glue Layer
#

#
# MUSB DMA mode
#
CONFIG_MUSB_PIO_ONLY=y
CONFIG_USB_DWC3=y
CONFIG_USB_DWC3_ULPI=y
# CONFIG_USB_DWC3_HOST is not set
CONFIG_USB_DWC3_GADGET=y
# CONFIG_USB_DWC3_DUAL_ROLE is not set

#
# Platform Glue Driver Support
#
CONFIG_USB_DWC3_PCI=y
CONFIG_USB_DWC3_HAPS=y
CONFIG_USB_DWC3_OF_SIMPLE=y
CONFIG_USB_DWC3_GENERIC_PLAT=y
# CONFIG_USB_DWC3_GOOGLE is not set
CONFIG_USB_DWC2=y
CONFIG_USB_DWC2_HOST=y

#
# Gadget/Dual-role mode requires USB Gadget support to be enabled
#
# CONFIG_USB_DWC2_PERIPHERAL is not set
# CONFIG_USB_DWC2_DUAL_ROLE is not set
CONFIG_USB_DWC2_PCI=y
# CONFIG_USB_DWC2_DEBUG is not set
# CONFIG_USB_DWC2_TRACK_MISSED_SOFS is not set
CONFIG_USB_CHIPIDEA=y
CONFIG_USB_CHIPIDEA_UDC=y
CONFIG_USB_CHIPIDEA_HOST=y
CONFIG_USB_CHIPIDEA_PCI=y
CONFIG_USB_CHIPIDEA_MSM=y
CONFIG_USB_CHIPIDEA_NPCM=y
# CONFIG_USB_CHIPIDEA_IMX is not set
CONFIG_USB_CHIPIDEA_GENERIC=y
# CONFIG_USB_CHIPIDEA_TEGRA is not set
CONFIG_USB_ISP1760=y
CONFIG_USB_ISP1760_HCD=y
CONFIG_USB_ISP1761_UDC=y
# CONFIG_USB_ISP1760_HOST_ROLE is not set
# CONFIG_USB_ISP1760_GADGET_ROLE is not set
CONFIG_USB_ISP1760_DUAL_ROLE=y

#
# USB port drivers
#
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_CONSOLE=y
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_SIMPLE=y
CONFIG_USB_SERIAL_AIRCABLE=y
CONFIG_USB_SERIAL_ARK3116=y
CONFIG_USB_SERIAL_BELKIN=y
CONFIG_USB_SERIAL_CH341=y
CONFIG_USB_SERIAL_WHITEHEAT=y
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=y
CONFIG_USB_SERIAL_CP210X=y
CONFIG_USB_SERIAL_CYPRESS_M8=y
CONFIG_USB_SERIAL_EMPEG=y
CONFIG_USB_SERIAL_FTDI_SIO=y
CONFIG_USB_SERIAL_VISOR=y
CONFIG_USB_SERIAL_IPAQ=y
CONFIG_USB_SERIAL_IR=y
CONFIG_USB_SERIAL_EDGEPORT=y
CONFIG_USB_SERIAL_EDGEPORT_TI=y
CONFIG_USB_SERIAL_F81232=y
CONFIG_USB_SERIAL_F8153X=y
CONFIG_USB_SERIAL_GARMIN=y
CONFIG_USB_SERIAL_IPW=y
CONFIG_USB_SERIAL_IUU=y
CONFIG_USB_SERIAL_KEYSPAN_PDA=y
CONFIG_USB_SERIAL_KEYSPAN=y
CONFIG_USB_SERIAL_KLSI=y
CONFIG_USB_SERIAL_KOBIL_SCT=y
CONFIG_USB_SERIAL_MCT_U232=y
CONFIG_USB_SERIAL_METRO=y
CONFIG_USB_SERIAL_MOS7720=y
CONFIG_USB_SERIAL_MOS7715_PARPORT=y
CONFIG_USB_SERIAL_MOS7840=y
CONFIG_USB_SERIAL_MXUPORT=y
CONFIG_USB_SERIAL_NAVMAN=y
CONFIG_USB_SERIAL_PL2303=y
CONFIG_USB_SERIAL_OTI6858=y
CONFIG_USB_SERIAL_QCAUX=y
CONFIG_USB_SERIAL_QUALCOMM=y
CONFIG_USB_SERIAL_SPCP8X5=y
CONFIG_USB_SERIAL_SAFE=y
# CONFIG_USB_SERIAL_SAFE_PADDED is not set
CONFIG_USB_SERIAL_SIERRAWIRELESS=y
CONFIG_USB_SERIAL_SYMBOL=y
CONFIG_USB_SERIAL_TI=y
CONFIG_USB_SERIAL_CYBERJACK=y
CONFIG_USB_SERIAL_WWAN=y
CONFIG_USB_SERIAL_OPTION=y
CONFIG_USB_SERIAL_OMNINET=y
CONFIG_USB_SERIAL_OPTICON=y
CONFIG_USB_SERIAL_XSENS_MT=y
CONFIG_USB_SERIAL_WISHBONE=y
CONFIG_USB_SERIAL_SSU100=y
CONFIG_USB_SERIAL_QT2=y
CONFIG_USB_SERIAL_UPD78F0730=y
CONFIG_USB_SERIAL_XR=y
CONFIG_USB_SERIAL_DEBUG=y

#
# USB Miscellaneous drivers
#
CONFIG_USB_USS720=y
CONFIG_USB_EMI62=y
CONFIG_USB_EMI26=y
CONFIG_USB_ADUTUX=y
CONFIG_USB_SEVSEG=y
CONFIG_USB_LEGOTOWER=y
CONFIG_USB_LCD=y
CONFIG_USB_CYPRESS_CY7C63=y
CONFIG_USB_CYTHERM=y
CONFIG_USB_IDMOUSE=y
CONFIG_USB_APPLEDISPLAY=y
CONFIG_APPLE_MFI_FASTCHARGE=y
CONFIG_USB_LJCA=y
# CONFIG_USB_USBIO is not set
CONFIG_USB_SISUSBVGA=y
CONFIG_USB_LD=y
CONFIG_USB_TRANCEVIBRATOR=y
CONFIG_USB_IOWARRIOR=y
CONFIG_USB_TEST=y
CONFIG_USB_EHSET_TEST_FIXTURE=y
CONFIG_USB_ISIGHTFW=y
CONFIG_USB_YUREX=y
CONFIG_USB_EZUSB_FX2=y
CONFIG_USB_HUB_USB251XB=y
CONFIG_USB_HSIC_USB3503=y
CONFIG_USB_HSIC_USB4604=y
CONFIG_USB_LINK_LAYER_TEST=y
CONFIG_USB_CHAOSKEY=y
# CONFIG_USB_ONBOARD_DEV is not set
CONFIG_USB_ATM=y
CONFIG_USB_SPEEDTOUCH=y
CONFIG_USB_CXACRU=y
CONFIG_USB_UEAGLEATM=y
CONFIG_USB_XUSBATM=y

#
# USB Physical Layer drivers
#
CONFIG_USB_PHY=y
CONFIG_NOP_USB_XCEIV=y
CONFIG_TAHVO_USB=y
CONFIG_TAHVO_USB_HOST_BY_DEFAULT=y
CONFIG_USB_ISP1301=y
# end of USB Physical Layer drivers

CONFIG_USB_GADGET=y
# CONFIG_USB_GADGET_DEBUG is not set
CONFIG_USB_GADGET_DEBUG_FILES=y
CONFIG_USB_GADGET_DEBUG_FS=y
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2
CONFIG_U_SERIAL_CONSOLE=y

#
# USB Peripheral Controller
#
CONFIG_USB_GR_UDC=y
CONFIG_USB_R8A66597=y
CONFIG_USB_PXA27X=y
CONFIG_USB_SNP_CORE=y
# CONFIG_USB_SNP_UDC_PLAT is not set
# CONFIG_USB_M66592 is not set
CONFIG_USB_BDC_UDC=y
CONFIG_USB_AMD5536UDC=y
CONFIG_USB_NET2280=y
CONFIG_USB_GOKU=y
CONFIG_USB_EG20T=y
# CONFIG_USB_GADGET_XILINX is not set
CONFIG_USB_MAX3420_UDC=y
CONFIG_USB_CDNS2_UDC=y
CONFIG_USB_DUMMY_HCD=y
# end of USB Peripheral Controller

CONFIG_USB_LIBCOMPOSITE=y
CONFIG_USB_F_ACM=y
CONFIG_USB_F_SS_LB=y
CONFIG_USB_U_SERIAL=y
CONFIG_USB_U_ETHER=y
CONFIG_USB_U_AUDIO=y
CONFIG_USB_F_SERIAL=y
CONFIG_USB_F_OBEX=y
CONFIG_USB_F_NCM=y
CONFIG_USB_F_ECM=y
CONFIG_USB_F_PHONET=y
CONFIG_USB_F_EEM=y
CONFIG_USB_F_SUBSET=y
CONFIG_USB_F_RNDIS=y
CONFIG_USB_F_MASS_STORAGE=y
CONFIG_USB_F_FS=y
CONFIG_USB_F_UAC1=y
CONFIG_USB_F_UAC1_LEGACY=y
CONFIG_USB_F_UAC2=y
CONFIG_USB_F_UVC=y
CONFIG_USB_F_MIDI=y
CONFIG_USB_F_MIDI2=y
CONFIG_USB_F_HID=y
CONFIG_USB_F_PRINTER=y
CONFIG_USB_F_TCM=y
CONFIG_USB_CONFIGFS=y
CONFIG_USB_CONFIGFS_SERIAL=y
CONFIG_USB_CONFIGFS_ACM=y
CONFIG_USB_CONFIGFS_OBEX=y
CONFIG_USB_CONFIGFS_NCM=y
CONFIG_USB_CONFIGFS_ECM=y
CONFIG_USB_CONFIGFS_ECM_SUBSET=y
CONFIG_USB_CONFIGFS_RNDIS=y
CONFIG_USB_CONFIGFS_EEM=y
CONFIG_USB_CONFIGFS_PHONET=y
CONFIG_USB_CONFIGFS_MASS_STORAGE=y
CONFIG_USB_CONFIGFS_F_LB_SS=y
CONFIG_USB_CONFIGFS_F_FS=y
CONFIG_USB_CONFIGFS_F_UAC1=y
CONFIG_USB_CONFIGFS_F_UAC1_LEGACY=y
CONFIG_USB_CONFIGFS_F_UAC2=y
CONFIG_USB_CONFIGFS_F_MIDI=y
CONFIG_USB_CONFIGFS_F_MIDI2=y
CONFIG_USB_CONFIGFS_F_HID=y
CONFIG_USB_CONFIGFS_F_UVC=y
CONFIG_USB_CONFIGFS_F_PRINTER=y
CONFIG_USB_CONFIGFS_F_TCM=y

#
# USB Gadget precomposed configurations
#
# CONFIG_USB_ZERO is not set
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_ETH is not set
# CONFIG_USB_G_NCM is not set
CONFIG_USB_GADGETFS=y
# CONFIG_USB_FUNCTIONFS is not set
# CONFIG_USB_MASS_STORAGE is not set
# CONFIG_USB_GADGET_TARGET is not set
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_MIDI_GADGET is not set
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_G_NOKIA is not set
# CONFIG_USB_G_ACM_MS is not set
# CONFIG_USB_G_MULTI is not set
# CONFIG_USB_G_HID is not set
# CONFIG_USB_G_DBGP is not set
# CONFIG_USB_G_WEBCAM is not set
CONFIG_USB_RAW_GADGET=y
# end of USB Gadget precomposed configurations

CONFIG_TYPEC=y
CONFIG_TYPEC_TCPM=y
CONFIG_TYPEC_TCPCI=y
CONFIG_TYPEC_RT1711H=y
CONFIG_TYPEC_MT6360=y
CONFIG_TYPEC_TCPCI_MT6370=y
CONFIG_TYPEC_TCPCI_MAXIM=y
CONFIG_TYPEC_FUSB302=y
CONFIG_TYPEC_WCOVE=y
CONFIG_TYPEC_UCSI=y
CONFIG_UCSI_CCG=y
CONFIG_UCSI_ACPI=y
CONFIG_UCSI_STM32G0=y
CONFIG_TYPEC_TPS6598X=y
CONFIG_TYPEC_ANX7411=y
CONFIG_TYPEC_RT1719=y
CONFIG_TYPEC_HD3SS3220=y
CONFIG_TYPEC_STUSB160X=y
CONFIG_TYPEC_WUSB3801=y

#
# USB Type-C Multiplexer/DeMultiplexer Switch support
#
CONFIG_TYPEC_MUX_FSA4480=y
CONFIG_TYPEC_MUX_GPIO_SBU=y
CONFIG_TYPEC_MUX_PI3USB30532=y
CONFIG_TYPEC_MUX_INTEL_PMC=y
# CONFIG_TYPEC_MUX_IT5205 is not set
CONFIG_TYPEC_MUX_NB7VPQ904M=y
# CONFIG_TYPEC_MUX_PS883X is not set
CONFIG_TYPEC_MUX_PTN36502=y
# CONFIG_TYPEC_MUX_TUSB1046 is not set
CONFIG_TYPEC_MUX_WCD939X_USBSS=y
# end of USB Type-C Multiplexer/DeMultiplexer Switch support

#
# USB Type-C Alternate Mode drivers
#
CONFIG_TYPEC_DP_ALTMODE=y
CONFIG_TYPEC_NVIDIA_ALTMODE=y
# CONFIG_TYPEC_TBT_ALTMODE is not set
# end of USB Type-C Alternate Mode drivers

CONFIG_USB_ROLE_SWITCH=y
CONFIG_USB_ROLES_INTEL_XHCI=y
CONFIG_MMC=y
# CONFIG_PWRSEQ_EMMC is not set
# CONFIG_PWRSEQ_SD8787 is not set
# CONFIG_PWRSEQ_SIMPLE is not set
# CONFIG_MMC_BLOCK is not set
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set
# CONFIG_MMC_CRYPTO is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_SDHCI is not set
# CONFIG_MMC_WBSD is not set
# CONFIG_MMC_TIFM_SD is not set
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_SDRICOH_CS is not set
# CONFIG_MMC_CB710 is not set
# CONFIG_MMC_VIA_SDMMC is not set
CONFIG_MMC_VUB300=y
CONFIG_MMC_USHC=y
# CONFIG_MMC_USDHI6ROL0 is not set
CONFIG_MMC_REALTEK_USB=y
# CONFIG_MMC_CQHCI is not set
# CONFIG_MMC_HSQ is not set
# CONFIG_MMC_TOSHIBA_PCI is not set
# CONFIG_MMC_MTK is not set
# CONFIG_SCSI_UFSHCD is not set
CONFIG_MEMSTICK=y
# CONFIG_MEMSTICK_DEBUG is not set

#
# MemoryStick drivers
#
# CONFIG_MEMSTICK_UNSAFE_RESUME is not set
# CONFIG_MSPRO_BLOCK is not set
# CONFIG_MS_BLOCK is not set

#
# MemoryStick Host Controller Drivers
#
# CONFIG_MEMSTICK_TIFM_MS is not set
# CONFIG_MEMSTICK_JMICRON_38X is not set
# CONFIG_MEMSTICK_R592 is not set
CONFIG_MEMSTICK_REALTEK_USB=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
CONFIG_LEDS_CLASS_MULTICOLOR=y
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set

#
# LED drivers
#
# CONFIG_LEDS_AN30259A is not set
# CONFIG_LEDS_APU is not set
# CONFIG_LEDS_OSRAM_AMS_AS3668 is not set
# CONFIG_LEDS_AW200XX is not set
# CONFIG_LEDS_AW2013 is not set
# CONFIG_LEDS_BCM6328 is not set
# CONFIG_LEDS_BCM6358 is not set
# CONFIG_LEDS_CHT_WCOVE is not set
# CONFIG_LEDS_CR0014114 is not set
# CONFIG_LEDS_EL15203000 is not set
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3532 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_LM3692X is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_LP3952 is not set
# CONFIG_LEDS_LP50XX is not set
# CONFIG_LEDS_LP55XX_COMMON is not set
# CONFIG_LEDS_LP8860 is not set
# CONFIG_LEDS_LP8864 is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_PCA995X is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_BD2606MVV is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_INTEL_SS4200 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_IS31FL319X is not set
# CONFIG_LEDS_IS31FL32XX is not set

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
# CONFIG_LEDS_BLINKM is not set
# CONFIG_LEDS_SYSCON is not set
# CONFIG_LEDS_MLXCPLD is not set
# CONFIG_LEDS_MLXREG is not set
# CONFIG_LEDS_USER is not set
# CONFIG_LEDS_NIC78BX is not set
# CONFIG_LEDS_SPI_BYTE is not set
# CONFIG_LEDS_LM3697 is not set
# CONFIG_LEDS_ST1202 is not set
# CONFIG_LEDS_LGM is not set

#
# Flash and Torch LED drivers
#

#
# RGB LED drivers
#
# CONFIG_LEDS_GROUP_MULTICOLOR is not set
# CONFIG_LEDS_KTD202X is not set
# CONFIG_LEDS_LP5812 is not set
# CONFIG_LEDS_LP5860_CORE is not set
# CONFIG_LEDS_LP5860_SPI is not set
# CONFIG_LEDS_NCP5623 is not set
# CONFIG_LEDS_MT6370_RGB is not set

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
# CONFIG_LEDS_TRIGGER_DISK is not set
# CONFIG_LEDS_TRIGGER_MTD is not set
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_ACTIVITY is not set
# CONFIG_LEDS_TRIGGER_GPIO is not set
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set

#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_LEDS_TRIGGER_PANIC is not set
# CONFIG_LEDS_TRIGGER_NETDEV is not set
# CONFIG_LEDS_TRIGGER_PATTERN is not set
# CONFIG_LEDS_TRIGGER_TTY is not set
# CONFIG_LEDS_TRIGGER_INPUT_EVENTS is not set

#
# Simatic LED drivers
#
# CONFIG_ACCESSIBILITY is not set
CONFIG_INFINIBAND=y
CONFIG_INFINIBAND_USER_MAD=y
CONFIG_INFINIBAND_USER_ACCESS=y
CONFIG_INFINIBAND_USER_ACCESS_CORE=y
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ON_DEMAND_PAGING=y
CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS=y
CONFIG_INFINIBAND_VIRT_DMA=y
# CONFIG_INFINIBAND_EFA is not set
# CONFIG_INFINIBAND_ERDMA is not set
CONFIG_MLX4_INFINIBAND=y
# CONFIG_INFINIBAND_MTHCA is not set
# CONFIG_INFINIBAND_OCRDMA is not set
# CONFIG_INFINIBAND_USNIC is not set
# CONFIG_INFINIBAND_VMWARE_PVRDMA is not set
# CONFIG_INFINIBAND_RDMAVT is not set
CONFIG_RDMA_RXE=y
CONFIG_RDMA_SIW=y
CONFIG_INFINIBAND_IPOIB=y
CONFIG_INFINIBAND_IPOIB_CM=y
CONFIG_INFINIBAND_IPOIB_DEBUG=y
# CONFIG_INFINIBAND_IPOIB_DEBUG_DATA is not set
CONFIG_INFINIBAND_SRP=y
# CONFIG_INFINIBAND_SRPT is not set
CONFIG_INFINIBAND_ISER=y
CONFIG_INFINIBAND_RTRS=y
CONFIG_INFINIBAND_RTRS_CLIENT=y
# CONFIG_INFINIBAND_RTRS_SERVER is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_EDAC=y
# CONFIG_EDAC_DEBUG is not set
# CONFIG_EDAC_DECODE_MCE is not set
# CONFIG_EDAC_SCRUB is not set
# CONFIG_EDAC_ECS is not set
# CONFIG_EDAC_MEM_REPAIR is not set
# CONFIG_EDAC_E752X is not set
# CONFIG_EDAC_I82975X is not set
# CONFIG_EDAC_I3000 is not set
# CONFIG_EDAC_I3200 is not set
# CONFIG_EDAC_IE31200 is not set
# CONFIG_EDAC_X38 is not set
# CONFIG_EDAC_I5400 is not set
# CONFIG_EDAC_I7CORE is not set
# CONFIG_EDAC_I5100 is not set
# CONFIG_EDAC_I7300 is not set
# CONFIG_EDAC_SBRIDGE is not set
# CONFIG_EDAC_SKX is not set
# CONFIG_EDAC_I10NM is not set
# CONFIG_EDAC_IMH is not set
# CONFIG_EDAC_PND2 is not set
# CONFIG_EDAC_IGEN6 is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
# CONFIG_RTC_NVMEM is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABEOZ9 is not set
# CONFIG_RTC_DRV_ABX80X is not set
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_HYM8563 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_MAX31335 is not set
# CONFIG_RTC_DRV_NCT3018Y is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_ISL12026 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_TWL4030 is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8010 is not set
# CONFIG_RTC_DRV_RX8111 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3028 is not set
# CONFIG_RTC_DRV_RV3032 is not set
# CONFIG_RTC_DRV_RV8803 is not set
# CONFIG_RTC_DRV_SD2405AL is not set
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
# CONFIG_RTC_DRV_RX4581 is not set
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
# CONFIG_RTC_DRV_RX6110 is not set

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_ZYNQMP is not set

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_CADENCE is not set
# CONFIG_RTC_DRV_FTRTC010 is not set
# CONFIG_RTC_DRV_R7301 is not set
# CONFIG_RTC_DRV_GOLDFISH is not set

#
# HID Sensor RTC drivers
#
CONFIG_RTC_DRV_HID_SENSOR_TIME=y
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_ACPI=y
CONFIG_DMA_OF=y
# CONFIG_ALTERA_MSGDMA is not set
# CONFIG_DW_AXI_DMAC is not set
# CONFIG_FSL_EDMA is not set
CONFIG_INTEL_IDMA64=y
# CONFIG_INTEL_IDXD is not set
# CONFIG_INTEL_IDXD_COMPAT is not set
CONFIG_INTEL_IOATDMA=y
# CONFIG_PLX_DMA is not set
# CONFIG_SWITCHTEC_DMA is not set
# CONFIG_XILINX_DMA is not set
# CONFIG_XILINX_XDMA is not set
# CONFIG_XILINX_ZYNQMP_DPDMA is not set
# CONFIG_AMD_PTDMA is not set
# CONFIG_AMD_QDMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
CONFIG_DW_DMAC_CORE=y
# CONFIG_DW_DMAC is not set
# CONFIG_DW_DMAC_PCI is not set
# CONFIG_DW_EDMA is not set
CONFIG_HSU_DMA=y
# CONFIG_SF_PDMA is not set
# CONFIG_INTEL_LDMA is not set

#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
# CONFIG_DMATEST is not set
CONFIG_DMA_ENGINE_RAID=y

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
CONFIG_SW_SYNC=y
CONFIG_UDMABUF=y
# CONFIG_DMABUF_DEBUG is not set
CONFIG_DMABUF_HEAPS=y
CONFIG_DMABUF_HEAPS_SYSTEM=y
# CONFIG_DMABUF_HEAPS_SYSTEM_CC_SHARED is not set
CONFIG_DMABUF_HEAPS_CMA=y
# end of DMABUF options

CONFIG_DCA=y
# CONFIG_UIO is not set
CONFIG_VFIO=y
CONFIG_VFIO_DEVICE_CDEV=y
# CONFIG_VFIO_GROUP is not set
CONFIG_VFIO_VIRQFD=y
# CONFIG_VFIO_DEBUGFS is not set

#
# VFIO support for PCI devices
#
CONFIG_VFIO_PCI_CORE=y
CONFIG_VFIO_PCI_INTX=y
CONFIG_VFIO_PCI=y
# CONFIG_VFIO_PCI_VGA is not set
# CONFIG_VFIO_PCI_IGD is not set
# CONFIG_VIRTIO_VFIO_PCI is not set
# end of VFIO support for PCI devices

CONFIG_IRQ_BYPASS_MANAGER=y
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO_ANCHOR=y
CONFIG_VIRTIO=y
CONFIG_VIRTIO_PCI_LIB=y
CONFIG_VIRTIO_PCI_LIB_LEGACY=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_ADMIN_LEGACY=y
CONFIG_VIRTIO_PCI_LEGACY=y
CONFIG_VIRTIO_VDPA=y
CONFIG_VIRTIO_PMEM=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_MEM=y
CONFIG_VIRTIO_INPUT=y
CONFIG_VIRTIO_MMIO=y
CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
CONFIG_VIRTIO_DMA_SHARED_BUFFER=y
# CONFIG_VIRTIO_DEBUG is not set
# CONFIG_VIRTIO_RTC is not set
CONFIG_VDPA=y
CONFIG_VDPA_SIM=y
CONFIG_VDPA_SIM_NET=y
CONFIG_VDPA_SIM_BLOCK=y
# CONFIG_VDPA_USER is not set
# CONFIG_IFCVF is not set
# CONFIG_MLX5_VDPA_STEERING_DEBUG is not set
CONFIG_VP_VDPA=y
# CONFIG_ALIBABA_ENI_VDPA is not set
# CONFIG_SNET_VDPA is not set
# CONFIG_OCTEONEP_VDPA is not set
CONFIG_VHOST_IOTLB=y
CONFIG_VHOST_RING=y
CONFIG_VHOST_TASK=y
CONFIG_VHOST=y
CONFIG_VHOST_MENU=y
CONFIG_VHOST_NET=y
# CONFIG_VHOST_SCSI is not set
CONFIG_VHOST_VSOCK=y
CONFIG_VHOST_VDPA=y
CONFIG_VHOST_CROSS_ENDIAN_LEGACY=y
CONFIG_VHOST_ENABLE_FORK_OWNER_CONTROL=y

#
# Microsoft Hyper-V guest support
#
# CONFIG_HYPERV is not set
# end of Microsoft Hyper-V guest support

CONFIG_GREYBUS=y
# CONFIG_GREYBUS_BEAGLEPLAY is not set
CONFIG_GREYBUS_ES2=y
CONFIG_COMEDI=y
# CONFIG_COMEDI_DEBUG is not set
CONFIG_COMEDI_DEFAULT_BUF_SIZE_KB=2048
CONFIG_COMEDI_DEFAULT_BUF_MAXSIZE_KB=20480
CONFIG_COMEDI_MISC_DRIVERS=y
CONFIG_COMEDI_BOND=y
CONFIG_COMEDI_TEST=y
CONFIG_COMEDI_PARPORT=y
CONFIG_COMEDI_ISA_DRIVERS=y
CONFIG_COMEDI_PCL711=y
CONFIG_COMEDI_PCL724=y
CONFIG_COMEDI_PCL726=y
CONFIG_COMEDI_PCL730=y
CONFIG_COMEDI_PCL812=y
CONFIG_COMEDI_PCL816=y
CONFIG_COMEDI_PCL818=y
CONFIG_COMEDI_PCM3724=y
CONFIG_COMEDI_AMPLC_DIO200_ISA=y
CONFIG_COMEDI_AMPLC_PC236_ISA=y
CONFIG_COMEDI_AMPLC_PC263_ISA=y
CONFIG_COMEDI_RTI800=y
CONFIG_COMEDI_RTI802=y
CONFIG_COMEDI_DAC02=y
CONFIG_COMEDI_DAS16M1=y
CONFIG_COMEDI_DAS08_ISA=y
# CONFIG_COMEDI_DAS16 is not set
CONFIG_COMEDI_DAS800=y
CONFIG_COMEDI_DAS1800=y
CONFIG_COMEDI_DAS6402=y
CONFIG_COMEDI_DT2801=y
CONFIG_COMEDI_DT2811=y
CONFIG_COMEDI_DT2814=y
CONFIG_COMEDI_DT2815=y
CONFIG_COMEDI_DT2817=y
CONFIG_COMEDI_DT282X=y
CONFIG_COMEDI_DMM32AT=y
CONFIG_COMEDI_FL512=y
CONFIG_COMEDI_AIO_AIO12_8=y
CONFIG_COMEDI_AIO_IIRO_16=y
# CONFIG_COMEDI_II_PCI20KC is not set
CONFIG_COMEDI_C6XDIGIO=y
CONFIG_COMEDI_MPC624=y
CONFIG_COMEDI_ADQ12B=y
CONFIG_COMEDI_NI_AT_A2150=y
CONFIG_COMEDI_NI_AT_AO=y
# CONFIG_COMEDI_NI_ATMIO is not set
CONFIG_COMEDI_NI_ATMIO16D=y
CONFIG_COMEDI_NI_LABPC_ISA=y
CONFIG_COMEDI_PCMAD=y
CONFIG_COMEDI_PCMDA12=y
CONFIG_COMEDI_PCMMIO=y
CONFIG_COMEDI_PCMUIO=y
CONFIG_COMEDI_MULTIQ3=y
CONFIG_COMEDI_S526=y
CONFIG_COMEDI_PCI_DRIVERS=y
CONFIG_COMEDI_8255_PCI=y
# CONFIG_COMEDI_ADDI_APCI_1032 is not set
# CONFIG_COMEDI_ADDI_APCI_1500 is not set
# CONFIG_COMEDI_ADDI_APCI_1516 is not set
# CONFIG_COMEDI_ADDI_APCI_1564 is not set
# CONFIG_COMEDI_ADDI_APCI_16XX is not set
# CONFIG_COMEDI_ADDI_APCI_2032 is not set
# CONFIG_COMEDI_ADDI_APCI_2200 is not set
# CONFIG_COMEDI_ADDI_APCI_3120 is not set
# CONFIG_COMEDI_ADDI_APCI_3501 is not set
# CONFIG_COMEDI_ADDI_APCI_3XXX is not set
# CONFIG_COMEDI_ADL_PCI6208 is not set
# CONFIG_COMEDI_ADL_PCI7250 is not set
# CONFIG_COMEDI_ADL_PCI7X3X is not set
# CONFIG_COMEDI_ADL_PCI8164 is not set
# CONFIG_COMEDI_ADL_PCI9111 is not set
CONFIG_COMEDI_ADL_PCI9118=y
# CONFIG_COMEDI_ADV_PCI1710 is not set
# CONFIG_COMEDI_ADV_PCI1720 is not set
# CONFIG_COMEDI_ADV_PCI1723 is not set
# CONFIG_COMEDI_ADV_PCI1724 is not set
# CONFIG_COMEDI_ADV_PCI1760 is not set
# CONFIG_COMEDI_ADV_PCI_DIO is not set
# CONFIG_COMEDI_AMPLC_DIO200_PCI is not set
# CONFIG_COMEDI_AMPLC_PC236_PCI is not set
# CONFIG_COMEDI_AMPLC_PC263_PCI is not set
# CONFIG_COMEDI_AMPLC_PCI224 is not set
# CONFIG_COMEDI_AMPLC_PCI230 is not set
# CONFIG_COMEDI_CONTEC_PCI_DIO is not set
# CONFIG_COMEDI_DAS08_PCI is not set
# CONFIG_COMEDI_DT3000 is not set
# CONFIG_COMEDI_DYNA_PCI10XX is not set
# CONFIG_COMEDI_GSC_HPDI is not set
# CONFIG_COMEDI_MF6X4 is not set
# CONFIG_COMEDI_ICP_MULTI is not set
# CONFIG_COMEDI_DAQBOARD2000 is not set
# CONFIG_COMEDI_JR3_PCI is not set
# CONFIG_COMEDI_KE_COUNTER is not set
# CONFIG_COMEDI_CB_PCIDAS64 is not set
# CONFIG_COMEDI_CB_PCIDAS is not set
# CONFIG_COMEDI_CB_PCIDDA is not set
# CONFIG_COMEDI_CB_PCIMDAS is not set
# CONFIG_COMEDI_CB_PCIMDDA is not set
# CONFIG_COMEDI_ME4000 is not set
# CONFIG_COMEDI_ME_DAQ is not set
# CONFIG_COMEDI_NI_6527 is not set
# CONFIG_COMEDI_NI_65XX is not set
# CONFIG_COMEDI_NI_660X is not set
# CONFIG_COMEDI_NI_670X is not set
CONFIG_COMEDI_NI_LABPC_PCI=y
# CONFIG_COMEDI_NI_PCIDIO is not set
# CONFIG_COMEDI_NI_PCIMIO is not set
# CONFIG_COMEDI_RTD520 is not set
# CONFIG_COMEDI_S626 is not set
CONFIG_COMEDI_PCMCIA_DRIVERS=y
# CONFIG_COMEDI_CB_DAS16_CS is not set
# CONFIG_COMEDI_DAS08_CS is not set
CONFIG_COMEDI_NI_DAQ_700_CS=y
# CONFIG_COMEDI_NI_DAQ_DIO24_CS is not set
CONFIG_COMEDI_NI_LABPC_CS=y
# CONFIG_COMEDI_NI_MIO_CS is not set
# CONFIG_COMEDI_QUATECH_DAQP_CS is not set
CONFIG_COMEDI_USB_DRIVERS=y
CONFIG_COMEDI_DT9812=y
CONFIG_COMEDI_NI_USB6501=y
CONFIG_COMEDI_USBDUX=y
CONFIG_COMEDI_USBDUXFAST=y
CONFIG_COMEDI_USBDUXSIGMA=y
CONFIG_COMEDI_VMK80XX=y
CONFIG_COMEDI_8254=y
CONFIG_COMEDI_8255=y
CONFIG_COMEDI_8255_SA=y
CONFIG_COMEDI_KCOMEDILIB=y
CONFIG_COMEDI_AMPLC_DIO200=y
CONFIG_COMEDI_AMPLC_PC236=y
CONFIG_COMEDI_DAS08=y
CONFIG_COMEDI_ISADMA=y
CONFIG_COMEDI_NI_LABPC=y
CONFIG_COMEDI_NI_LABPC_ISADMA=y
# CONFIG_COMEDI_TESTS is not set
# CONFIG_GPIB is not set
CONFIG_STAGING=y
# CONFIG_RTL8723BS is not set

#
# IIO staging drivers
#

#
# Accelerometers
#
# CONFIG_ADIS16203 is not set
# end of Accelerometers

#
# Analog to digital converters
#
# CONFIG_AD7816 is not set
# end of Analog to digital converters

#
# Analog digital bi-direction converters
#
# CONFIG_ADT7316 is not set
# end of Analog digital bi-direction converters

#
# Direct Digital Synthesis
#
# CONFIG_AD9832 is not set
# CONFIG_AD9834 is not set
# end of Direct Digital Synthesis

#
# Network Analyzer, Impedance Converters
#
# CONFIG_AD5933 is not set
# end of Network Analyzer, Impedance Converters
# end of IIO staging drivers

# CONFIG_FB_SM750 is not set
# CONFIG_STAGING_MEDIA is not set
# CONFIG_FB_TFT is not set
# CONFIG_MOST_COMPONENTS is not set
# CONFIG_GREYBUS_AUDIO is not set
# CONFIG_GREYBUS_BOOTROM is not set
# CONFIG_GREYBUS_FIRMWARE is not set
CONFIG_GREYBUS_HID=y
# CONFIG_GREYBUS_LOG is not set
# CONFIG_GREYBUS_LOOPBACK is not set
# CONFIG_GREYBUS_POWER is not set
# CONFIG_GREYBUS_RAW is not set
# CONFIG_GREYBUS_VIBRATOR is not set
CONFIG_GREYBUS_BRIDGED_PHY=y
# CONFIG_GREYBUS_GPIO is not set
# CONFIG_GREYBUS_I2C is not set
# CONFIG_GREYBUS_SDIO is not set
# CONFIG_GREYBUS_SPI is not set
# CONFIG_GREYBUS_UART is not set
CONFIG_GREYBUS_USB=y
# CONFIG_XIL_AXIS_FIFO is not set
# CONFIG_VME_BUS is not set
# CONFIG_GOLDFISH is not set
# CONFIG_CHROME_PLATFORMS is not set
# CONFIG_MELLANOX_PLATFORM is not set
CONFIG_SURFACE_PLATFORMS=y
# CONFIG_SURFACE3_WMI is not set
# CONFIG_SURFACE_3_POWER_OPREGION is not set
# CONFIG_SURFACE_ACPI_NOTIFY is not set
# CONFIG_SURFACE_AGGREGATOR_CDEV is not set
# CONFIG_SURFACE_AGGREGATOR_HUB is not set
CONFIG_SURFACE_AGGREGATOR_REGISTRY=y
# CONFIG_SURFACE_AGGREGATOR_TABLET_SWITCH is not set
# CONFIG_SURFACE_DTX is not set
# CONFIG_SURFACE_GPE is not set
# CONFIG_SURFACE_HOTPLUG is not set
# CONFIG_SURFACE_PLATFORM_PROFILE is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
CONFIG_SURFACE_AGGREGATOR=y
CONFIG_SURFACE_AGGREGATOR_BUS=y
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_WMI_BMOF=y
# CONFIG_HUAWEI_WMI is not set
# CONFIG_X86_PLATFORM_DRIVERS_UNIWILL is not set
# CONFIG_MXM_WMI is not set
# CONFIG_NVIDIA_WMI_EC_BACKLIGHT is not set
# CONFIG_XIAOMI_WMI is not set
# CONFIG_REDMI_WMI is not set
# CONFIG_GIGABYTE_WMI is not set
# CONFIG_BITLAND_MIFS_WMI is not set
# CONFIG_ACERHDF is not set
# CONFIG_ACER_WIRELESS is not set
# CONFIG_ACER_WMI is not set

#
# AMD HSMP Driver
#
# CONFIG_AMD_HSMP_ACPI is not set
# CONFIG_AMD_HSMP_PLAT is not set
# end of AMD HSMP Driver

# CONFIG_AMD_PMC is not set
# CONFIG_AMD_HFI is not set
# CONFIG_AMD_3D_VCACHE is not set
# CONFIG_AMD_WBRF is not set
# CONFIG_AMD_ISP_PLATFORM is not set
# CONFIG_ADV_SWBUTTON is not set
# CONFIG_APPLE_GMUX is not set
# CONFIG_ASUS_LAPTOP is not set
# CONFIG_ASUS_WIRELESS is not set
# CONFIG_ASUS_ARMOURY is not set
CONFIG_ASUS_WMI=y
# CONFIG_ASUS_WMI_DEPRECATED_ATTRS is not set
# CONFIG_ASUS_NB_WMI is not set
CONFIG_ASUS_TF103C_DOCK=y
# CONFIG_AYANEO_EC is not set
CONFIG_EEEPC_LAPTOP=y
# CONFIG_EEEPC_WMI is not set
# CONFIG_X86_PLATFORM_DRIVERS_DELL is not set
# CONFIG_AMILO_RFKILL is not set
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_GPD_POCKET_FAN is not set
# CONFIG_X86_PLATFORM_DRIVERS_HP is not set
# CONFIG_WIRELESS_HOTKEY is not set
# CONFIG_IBM_RTL is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_INTEL_ATOMISP2_PM is not set
# CONFIG_INTEL_IFS is not set
# CONFIG_INTEL_SAR_INT1092 is not set
# CONFIG_INTEL_SKL_INT3472 is not set

#
# Intel Speed Select Technology interface support
#
# CONFIG_INTEL_SPEED_SELECT_INTERFACE is not set
# end of Intel Speed Select Technology interface support

# CONFIG_INTEL_WMI_SBL_FW_UPDATE is not set
# CONFIG_INTEL_WMI_THUNDERBOLT is not set

#
# Intel Uncore Frequency Control
#
# CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set
# end of Intel Uncore Frequency Control

# CONFIG_INTEL_HID_EVENT is not set
# CONFIG_INTEL_VBTN is not set
# CONFIG_INTEL_EHL_PSE_IO is not set
# CONFIG_INTEL_INT0002_VGPIO is not set
# CONFIG_INTEL_OAKTRAIL is not set
# CONFIG_INTEL_BXTWC_PMIC_TMU is not set
CONFIG_INTEL_CHTWC_INT33FE=y
CONFIG_INTEL_ISHTP_ECLITE=y
# CONFIG_INTEL_PUNIT_IPC is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SMARTCONNECT is not set
# CONFIG_INTEL_TURBO_MAX_3 is not set
# CONFIG_INTEL_VSEC is not set
# CONFIG_IDEAPAD_LAPTOP is not set
# CONFIG_LENOVO_WMI_HOTKEY_UTILITIES is not set
# CONFIG_LENOVO_WMI_CAMERA is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_THINKPAD_LMI is not set
# CONFIG_YOGABOOK is not set
# CONFIG_YT2_1380 is not set
# CONFIG_LENOVO_WMI_GAMEZONE is not set
# CONFIG_LENOVO_WMI_TUNING is not set
# CONFIG_ACPI_QUICKSTART is not set
# CONFIG_MEEGOPAD_ANX7428 is not set
# CONFIG_MSI_EC is not set
# CONFIG_MSI_LAPTOP is not set
# CONFIG_MSI_WMI is not set
# CONFIG_MSI_WMI_PLATFORM is not set
# CONFIG_PCENGINES_APU2 is not set
# CONFIG_PORTWELL_EC is not set
# CONFIG_BARCO_P50_GPIO is not set
# CONFIG_SAMSUNG_GALAXYBOOK is not set
# CONFIG_SAMSUNG_LAPTOP is not set
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_ACPI_TOSHIBA is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_TOSHIBA_WMI is not set
# CONFIG_ACPI_CMPC is not set
# CONFIG_COMPAL_LAPTOP is not set
# CONFIG_LG_LAPTOP is not set
# CONFIG_PANASONIC_LAPTOP is not set
# CONFIG_SONY_LAPTOP is not set
# CONFIG_SYSTEM76_ACPI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_SERIAL_MULTI_INSTANTIATE is not set
# CONFIG_INSPUR_PLATFORM_PROFILE is not set
# CONFIG_DASHARO_ACPI is not set
# CONFIG_INTEL_IPS is not set
CONFIG_INTEL_SCU_IPC=y
# CONFIG_INTEL_SCU_PCI is not set
# CONFIG_INTEL_SCU_PLATFORM is not set
# CONFIG_SIEMENS_SIMATIC_IPC is not set
# CONFIG_SILICOM_PLATFORM is not set
# CONFIG_WINMATE_FM07_KEYS is not set
# CONFIG_OXP_EC is not set
# CONFIG_TUXEDO_NB04_WMI_AB is not set
CONFIG_P2SB=y
CONFIG_ACPI_WMI=y
# CONFIG_ACPI_WMI_LEGACY_DEVICE_NAMES is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# CONFIG_LMK04832 is not set
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5341 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI514 is not set
# CONFIG_COMMON_CLK_SI544 is not set
# CONFIG_COMMON_CLK_SI570 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CDCE925 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_CLK_TWL is not set
# CONFIG_COMMON_CLK_AXI_CLKGEN is not set
# CONFIG_COMMON_CLK_RS9_PCIE is not set
# CONFIG_COMMON_CLK_SI521XX is not set
# CONFIG_COMMON_CLK_VC3 is not set
# CONFIG_COMMON_CLK_VC5 is not set
# CONFIG_COMMON_CLK_VC7 is not set
# CONFIG_COMMON_CLK_FIXED_MMIO is not set
# CONFIG_CLK_LGM_CGU is not set
# CONFIG_XILINX_VCU is not set
# CONFIG_COMMON_CLK_XLNX_CLKWZRD is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# end of Clock Source drivers

CONFIG_MAILBOX=y
# CONFIG_PLATFORM_MHU is not set
CONFIG_PCC=y
# CONFIG_ALTERA_MBOX is not set
# CONFIG_MAILBOX_TEST is not set
CONFIG_IOMMU_IOVA=y
CONFIG_IOMMU_API=y
CONFIG_IOMMUFD_DRIVER=y
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
# end of Generic IOMMU Pagetable Support

# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set
CONFIG_IOMMU_DEFAULT_DMA_LAZY=y
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
CONFIG_OF_IOMMU=y
CONFIG_IOMMU_DMA=y
CONFIG_IOMMU_SVA=y
CONFIG_IOMMU_IOPF=y
CONFIG_AMD_IOMMU=y
# CONFIG_AMD_IOMMU_IOMMUFD is not set
CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
CONFIG_INTEL_IOMMU_SVM=y
CONFIG_INTEL_IOMMU_DEFAULT_ON=y
CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON=y
CONFIG_INTEL_IOMMU_PERF_EVENTS=y
CONFIG_IOMMUFD_DRIVER_CORE=y
CONFIG_IOMMUFD=y
CONFIG_IOMMUFD_TEST=y
CONFIG_IRQ_REMAP=y
# CONFIG_VIRTIO_IOMMU is not set
CONFIG_GENERIC_PT=y
CONFIG_DEBUG_GENERIC_PT=y
CONFIG_IOMMU_PT=y
CONFIG_IOMMU_PT_AMDV1=y
CONFIG_IOMMU_PT_VTDSS=y
# CONFIG_IOMMU_PT_RISCV64 is not set
CONFIG_IOMMU_PT_X86_64=y

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers

CONFIG_SOUNDWIRE=y

#
# SoundWire Devices
#
# CONFIG_SOUNDWIRE_AMD is not set
# CONFIG_SOUNDWIRE_INTEL is not set
# CONFIG_SOUNDWIRE_QCOM is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers

#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers

#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers

#
# i.MX SoC drivers
#
# end of i.MX SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# CONFIG_LITEX_SOC_CONTROLLER is not set
# end of Enable LiteX SoC Builder specific drivers

# CONFIG_WPCM450_SOC is not set

#
# Qualcomm SoC drivers
#
CONFIG_QCOM_QMI_HELPERS=y
# end of Qualcomm SoC drivers

# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

#
# PM Domains
#

#
# Amlogic PM Domains
#
# end of Amlogic PM Domains

#
# Broadcom PM Domains
#
# end of Broadcom PM Domains

#
# i.MX PM Domains
#
# end of i.MX PM Domains

#
# Qualcomm PM Domains
#
# end of Qualcomm PM Domains
# end of PM Domains

# CONFIG_PM_DEVFREQ is not set
CONFIG_EXTCON=y

#
# Extcon Device Drivers
#
# CONFIG_EXTCON_ADC_JACK is not set
# CONFIG_EXTCON_FSA9480 is not set
# CONFIG_EXTCON_GPIO is not set
# CONFIG_EXTCON_INTEL_INT3496 is not set
CONFIG_EXTCON_INTEL_CHT_WC=y
# CONFIG_EXTCON_LC824206XA is not set
# CONFIG_EXTCON_MAX3355 is not set
# CONFIG_EXTCON_MAX14526 is not set
CONFIG_EXTCON_PTN5150=y
# CONFIG_EXTCON_RT8973A is not set
# CONFIG_EXTCON_SM5502 is not set
# CONFIG_EXTCON_USB_GPIO is not set
CONFIG_EXTCON_USBC_TUSB320=y
# CONFIG_MEMORY is not set
CONFIG_IIO=y
CONFIG_IIO_BUFFER=y
# CONFIG_IIO_BUFFER_CB is not set
# CONFIG_IIO_BUFFER_DMA is not set
# CONFIG_IIO_BUFFER_DMAENGINE is not set
# CONFIG_IIO_BUFFER_HW_CONSUMER is not set
CONFIG_IIO_KFIFO_BUF=y
CONFIG_IIO_TRIGGERED_BUFFER=y
# CONFIG_IIO_CONFIGFS is not set
CONFIG_IIO_TRIGGER=y
CONFIG_IIO_CONSUMERS_PER_TRIGGER=2
# CONFIG_IIO_SW_DEVICE is not set
# CONFIG_IIO_SW_TRIGGER is not set
# CONFIG_IIO_TRIGGERED_EVENT is not set

#
# Accelerometers
#
# CONFIG_ADIS16201 is not set
# CONFIG_ADIS16209 is not set
# CONFIG_ADXL313_I2C is not set
# CONFIG_ADXL313_SPI is not set
# CONFIG_ADXL345_I2C is not set
# CONFIG_ADXL345_SPI is not set
# CONFIG_ADXL355_I2C is not set
# CONFIG_ADXL355_SPI is not set
# CONFIG_ADXL367_SPI is not set
# CONFIG_ADXL367_I2C is not set
# CONFIG_ADXL372_SPI is not set
# CONFIG_ADXL372_I2C is not set
# CONFIG_ADXL380_SPI is not set
# CONFIG_ADXL380_I2C is not set
# CONFIG_BMA180 is not set
# CONFIG_BMA220 is not set
# CONFIG_BMA400 is not set
# CONFIG_BMC150_ACCEL is not set
# CONFIG_BMI088_ACCEL is not set
# CONFIG_DA280 is not set
# CONFIG_DA311 is not set
# CONFIG_DMARD06 is not set
# CONFIG_DMARD09 is not set
# CONFIG_DMARD10 is not set
# CONFIG_FXLS8962AF_I2C is not set
# CONFIG_FXLS8962AF_SPI is not set
CONFIG_HID_SENSOR_ACCEL_3D=y
# CONFIG_IIO_ST_ACCEL_3AXIS is not set
# CONFIG_IIO_KX022A_SPI is not set
# CONFIG_IIO_KX022A_I2C is not set
# CONFIG_KXSD9 is not set
# CONFIG_KXCJK1013 is not set
# CONFIG_MC3230 is not set
# CONFIG_MMA7455_I2C is not set
# CONFIG_MMA7455_SPI is not set
# CONFIG_MMA7660 is not set
# CONFIG_MMA8452 is not set
# CONFIG_MMA9551 is not set
# CONFIG_MMA9553 is not set
# CONFIG_MSA311 is not set
# CONFIG_MXC4005 is not set
# CONFIG_MXC6255 is not set
# CONFIG_SCA3000 is not set
# CONFIG_SCA3300 is not set
# CONFIG_STK8312 is not set
# CONFIG_STK8BA50 is not set
# end of Accelerometers

#
# Analog to digital converters
#
# CONFIG_AD4000 is not set
# CONFIG_AD4080 is not set
# CONFIG_AD4130 is not set
# CONFIG_AD4134 is not set
# CONFIG_AD4170_4 is not set
# CONFIG_AD4691 is not set
# CONFIG_AD4695 is not set
# CONFIG_AD7091R5 is not set
# CONFIG_AD7091R8 is not set
# CONFIG_AD7124 is not set
# CONFIG_AD7173 is not set
# CONFIG_AD7191 is not set
# CONFIG_AD7192 is not set
# CONFIG_AD7266 is not set
# CONFIG_AD7280 is not set
# CONFIG_AD7291 is not set
# CONFIG_AD7292 is not set
# CONFIG_AD7298 is not set
# CONFIG_AD7380 is not set
# CONFIG_AD7476 is not set
# CONFIG_AD7606_IFACE_PARALLEL is not set
# CONFIG_AD7606_IFACE_SPI is not set
# CONFIG_AD7766 is not set
# CONFIG_AD7768_1 is not set
# CONFIG_AD7779 is not set
# CONFIG_AD7780 is not set
# CONFIG_AD7791 is not set
# CONFIG_AD7793 is not set
# CONFIG_AD7887 is not set
# CONFIG_AD7923 is not set
# CONFIG_AD7944 is not set
# CONFIG_AD7949 is not set
# CONFIG_AD799X is not set
# CONFIG_AD9467 is not set
# CONFIG_ADE9000 is not set
# CONFIG_CC10001_ADC is not set
CONFIG_DLN2_ADC=y
# CONFIG_ENVELOPE_DETECTOR is not set
# CONFIG_GEHC_PMC_ADC is not set
# CONFIG_HI8435 is not set
# CONFIG_HX711 is not set
# CONFIG_INA2XX_ADC is not set
# CONFIG_LTC2309 is not set
# CONFIG_LTC2471 is not set
# CONFIG_LTC2485 is not set
# CONFIG_LTC2496 is not set
# CONFIG_LTC2497 is not set
# CONFIG_MAX1027 is not set
# CONFIG_MAX11100 is not set
# CONFIG_MAX1118 is not set
# CONFIG_MAX11205 is not set
# CONFIG_MAX11410 is not set
# CONFIG_MAX1241 is not set
# CONFIG_MAX1363 is not set
# CONFIG_MAX14001 is not set
# CONFIG_MAX34408 is not set
# CONFIG_MAX9611 is not set
# CONFIG_MCP320X is not set
# CONFIG_MCP3422 is not set
# CONFIG_MCP3564 is not set
# CONFIG_MCP3911 is not set
# CONFIG_MEDIATEK_MT6360_ADC is not set
# CONFIG_MEDIATEK_MT6370_ADC is not set
# CONFIG_NAU7802 is not set
# CONFIG_NCT7201 is not set
# CONFIG_PAC1921 is not set
# CONFIG_PAC1934 is not set
# CONFIG_ROHM_BD79112 is not set
# CONFIG_ROHM_BD79124 is not set
# CONFIG_RICHTEK_RTQ6056 is not set
# CONFIG_SD_ADC_MODULATOR is not set
# CONFIG_TI_ADC081C is not set
# CONFIG_TI_ADC0832 is not set
# CONFIG_TI_ADC084S021 is not set
# CONFIG_TI_ADC108S102 is not set
# CONFIG_TI_ADC12138 is not set
# CONFIG_TI_ADC128S052 is not set
# CONFIG_TI_ADC161S626 is not set
# CONFIG_TI_ADS1015 is not set
# CONFIG_TI_ADS1018 is not set
# CONFIG_TI_ADS1100 is not set
# CONFIG_TI_ADS1119 is not set
# CONFIG_TI_ADS124S08 is not set
# CONFIG_TI_ADS1298 is not set
# CONFIG_TI_ADS131E08 is not set
# CONFIG_TI_ADS131M02 is not set
# CONFIG_TI_ADS7138 is not set
# CONFIG_TI_ADS7924 is not set
# CONFIG_TI_ADS7950 is not set
# CONFIG_TI_ADS8344 is not set
# CONFIG_TI_ADS8688 is not set
# CONFIG_TI_LMP92064 is not set
# CONFIG_TI_TLC4541 is not set
# CONFIG_TI_TSC2046 is not set
# CONFIG_TWL4030_MADC is not set
# CONFIG_TWL6030_GPADC is not set
# CONFIG_VF610_ADC is not set
CONFIG_VIPERBOARD_ADC=y
# CONFIG_XILINX_XADC is not set
# end of Analog to digital converters

#
# Analog to digital and digital to analog converters
#
# CONFIG_AD74115 is not set
# CONFIG_AD74413R is not set
# end of Analog to digital and digital to analog converters

#
# Analog Front Ends
#
# CONFIG_IIO_RESCALE is not set
# end of Analog Front Ends

#
# Amplifiers
#
# CONFIG_AD8366 is not set
# CONFIG_ADA4250 is not set
# CONFIG_ADL8113 is not set
# CONFIG_HMC425 is not set
# end of Amplifiers

#
# Capacitance to digital converters
#
# CONFIG_AD7150 is not set
# CONFIG_AD7746 is not set
# end of Capacitance to digital converters

#
# Chemical Sensors
#
# CONFIG_AOSONG_AGS02MA is not set
# CONFIG_ATLAS_PH_SENSOR is not set
# CONFIG_ATLAS_EZO_SENSOR is not set
# CONFIG_BME680 is not set
# CONFIG_CCS811 is not set
# CONFIG_ENS160 is not set
# CONFIG_IAQCORE is not set
# CONFIG_MHZ19B is not set
# CONFIG_PMS7003 is not set
# CONFIG_SCD30_CORE is not set
# CONFIG_SCD4X is not set
# CONFIG_SEN0322 is not set
# CONFIG_SENSIRION_SGP30 is not set
# CONFIG_SENSIRION_SGP40 is not set
# CONFIG_SPS30_I2C is not set
# CONFIG_SPS30_SERIAL is not set
# CONFIG_SENSEAIR_SUNRISE_CO2 is not set
# CONFIG_VZ89X is not set
# end of Chemical Sensors

#
# Hid Sensor IIO Common
#
CONFIG_HID_SENSOR_IIO_COMMON=y
CONFIG_HID_SENSOR_IIO_TRIGGER=y
# end of Hid Sensor IIO Common

#
# IIO SCMI Sensors
#
# end of IIO SCMI Sensors

#
# SSP Sensor Common
#
# CONFIG_IIO_SSP_SENSORHUB is not set
# end of SSP Sensor Common

#
# Digital to analog converters
#
# CONFIG_AD3530R is not set
# CONFIG_AD3552R_HS is not set
# CONFIG_AD3552R is not set
# CONFIG_AD5064 is not set
# CONFIG_AD5360 is not set
# CONFIG_AD5380 is not set
# CONFIG_AD5421 is not set
# CONFIG_AD5446_SPI is not set
# CONFIG_AD5446_I2C is not set
# CONFIG_AD5449 is not set
# CONFIG_AD5592R is not set
# CONFIG_AD5593R is not set
# CONFIG_AD5504 is not set
# CONFIG_AD5624R_SPI is not set
# CONFIG_AD5706R is not set
# CONFIG_AD9739A is not set
# CONFIG_LTC2688 is not set
# CONFIG_AD5686_SPI is not set
# CONFIG_AD5696_I2C is not set
# CONFIG_AD5755 is not set
# CONFIG_AD5758 is not set
# CONFIG_AD5761 is not set
# CONFIG_AD5764 is not set
# CONFIG_AD5766 is not set
# CONFIG_AD5770R is not set
# CONFIG_AD5791 is not set
# CONFIG_AD7293 is not set
# CONFIG_AD7303 is not set
# CONFIG_AD8460 is not set
# CONFIG_AD8801 is not set
# CONFIG_BD79703 is not set
# CONFIG_CIO_DAC is not set
# CONFIG_DPOT_DAC is not set
# CONFIG_DS4424 is not set
# CONFIG_LTC1660 is not set
# CONFIG_LTC2632 is not set
# CONFIG_LTC2664 is not set
# CONFIG_M62332 is not set
# CONFIG_MAX517 is not set
# CONFIG_MAX22007 is not set
# CONFIG_MAX5522 is not set
# CONFIG_MAX5821 is not set
# CONFIG_MCP4725 is not set
# CONFIG_MCP4728 is not set
# CONFIG_MCP47FEB02 is not set
# CONFIG_MCP4821 is not set
# CONFIG_MCP4922 is not set
# CONFIG_TI_DAC082S085 is not set
# CONFIG_TI_DAC5571 is not set
# CONFIG_TI_DAC7311 is not set
# CONFIG_TI_DAC7612 is not set
# CONFIG_VF610_DAC is not set
# end of Digital to analog converters

#
# IIO dummy driver
#
# end of IIO dummy driver

#
# Filters
#
# CONFIG_ADMV8818 is not set
# end of Filters

#
# Frequency Synthesizers DDS/PLL
#

#
# Clock Generator/Distribution
#
# CONFIG_AD9523 is not set
# end of Clock Generator/Distribution

#
# Phase-Locked Loop (PLL) frequency synthesizers
#
# CONFIG_ADF4350 is not set
# CONFIG_ADF4371 is not set
# CONFIG_ADF4377 is not set
# CONFIG_ADMFM2000 is not set
# CONFIG_ADMV1013 is not set
# CONFIG_ADMV1014 is not set
# CONFIG_ADMV4420 is not set
# CONFIG_ADRF6780 is not set
# end of Phase-Locked Loop (PLL) frequency synthesizers
# end of Frequency Synthesizers DDS/PLL

#
# Digital gyroscope sensors
#
# CONFIG_ADIS16080 is not set
# CONFIG_ADIS16130 is not set
# CONFIG_ADIS16136 is not set
# CONFIG_ADIS16260 is not set
# CONFIG_ADXRS290 is not set
# CONFIG_ADXRS450 is not set
# CONFIG_BMG160 is not set
# CONFIG_FXAS21002C is not set
CONFIG_HID_SENSOR_GYRO_3D=y
# CONFIG_MPU3050_I2C is not set
# CONFIG_IIO_ST_GYRO_3AXIS is not set
# CONFIG_ITG3200 is not set
# end of Digital gyroscope sensors

#
# Health Sensors
#

#
# Heart Rate Monitors
#
# CONFIG_AFE4403 is not set
# CONFIG_AFE4404 is not set
# CONFIG_MAX30100 is not set
# CONFIG_MAX30102 is not set
# end of Heart Rate Monitors
# end of Health Sensors

#
# Humidity sensors
#
# CONFIG_AM2315 is not set
# CONFIG_DHT11 is not set
# CONFIG_ENS210 is not set
# CONFIG_HDC100X is not set
# CONFIG_HDC2010 is not set
# CONFIG_HDC3020 is not set
CONFIG_HID_SENSOR_HUMIDITY=y
# CONFIG_HTS221 is not set
# CONFIG_HTU21 is not set
# CONFIG_SI7005 is not set
# CONFIG_SI7020 is not set
# end of Humidity sensors

#
# Inertial measurement units
#
# CONFIG_ADIS16400 is not set
# CONFIG_ADIS16460 is not set
# CONFIG_ADIS16475 is not set
# CONFIG_ADIS16480 is not set
# CONFIG_ADIS16550 is not set
# CONFIG_BMI160_I2C is not set
# CONFIG_BMI160_SPI is not set
# CONFIG_BMI270_I2C is not set
# CONFIG_BMI270_SPI is not set
# CONFIG_BMI323_I2C is not set
# CONFIG_BMI323_SPI is not set
# CONFIG_BOSCH_BNO055_SERIAL is not set
# CONFIG_BOSCH_BNO055_I2C is not set
# CONFIG_FXOS8700_I2C is not set
# CONFIG_FXOS8700_SPI is not set
# CONFIG_KMX61 is not set
# CONFIG_INV_ICM42600_I2C is not set
# CONFIG_INV_ICM42600_SPI is not set
# CONFIG_INV_ICM45600_I2C is not set
# CONFIG_INV_ICM45600_SPI is not set
# CONFIG_INV_MPU6050_I2C is not set
# CONFIG_INV_MPU6050_SPI is not set
# CONFIG_SMI240 is not set
# CONFIG_SMI330_I2C is not set
# CONFIG_SMI330_SPI is not set
# CONFIG_IIO_ST_LSM6DSX is not set
# CONFIG_IIO_ST_LSM9DS0 is not set
# end of Inertial measurement units

#
# Light sensors
#
# CONFIG_ACPI_ALS is not set
# CONFIG_ADJD_S311 is not set
# CONFIG_ADUX1020 is not set
# CONFIG_AL3000A is not set
# CONFIG_AL3010 is not set
# CONFIG_AL3320A is not set
# CONFIG_APDS9160 is not set
# CONFIG_APDS9300 is not set
# CONFIG_APDS9306 is not set
# CONFIG_APDS9960 is not set
# CONFIG_APDS9999 is not set
# CONFIG_AS73211 is not set
# CONFIG_BH1745 is not set
# CONFIG_BH1750 is not set
# CONFIG_BH1780 is not set
# CONFIG_CM32181 is not set
# CONFIG_CM3232 is not set
# CONFIG_CM3323 is not set
# CONFIG_CM3605 is not set
# CONFIG_CM36651 is not set
# CONFIG_GP2AP002 is not set
# CONFIG_GP2AP020A00F is not set
# CONFIG_SENSORS_ISL29018 is not set
# CONFIG_SENSORS_ISL29028 is not set
# CONFIG_ISL29125 is not set
# CONFIG_ISL76682 is not set
CONFIG_HID_SENSOR_ALS=y
CONFIG_HID_SENSOR_PROX=y
# CONFIG_JSA1212 is not set
# CONFIG_ROHM_BU27034 is not set
# CONFIG_RPR0521 is not set
# CONFIG_LTR390 is not set
# CONFIG_LTR501 is not set
# CONFIG_LTRF216A is not set
# CONFIG_LV0104CS is not set
# CONFIG_MAX44000 is not set
# CONFIG_MAX44009 is not set
# CONFIG_NOA1305 is not set
# CONFIG_OPT3001 is not set
# CONFIG_OPT4001 is not set
# CONFIG_OPT4060 is not set
# CONFIG_PA12203001 is not set
# CONFIG_SI1133 is not set
# CONFIG_SI1145 is not set
# CONFIG_STK3310 is not set
# CONFIG_ST_UVIS25 is not set
# CONFIG_TCS3414 is not set
# CONFIG_TCS3472 is not set
# CONFIG_SENSORS_TSL2563 is not set
# CONFIG_TSL2583 is not set
# CONFIG_TSL2591 is not set
# CONFIG_TSL2772 is not set
# CONFIG_TSL4531 is not set
# CONFIG_US5182D is not set
# CONFIG_VCNL4000 is not set
# CONFIG_VCNL4035 is not set
# CONFIG_VEML3235 is not set
# CONFIG_VEML3328 is not set
# CONFIG_VEML6030 is not set
# CONFIG_VEML6040 is not set
# CONFIG_VEML6046X00 is not set
# CONFIG_VEML6070 is not set
# CONFIG_VEML6075 is not set
# CONFIG_VL6180 is not set
# CONFIG_ZOPT2201 is not set
# end of Light sensors

#
# Magnetometer sensors
#
# CONFIG_AF8133J is not set
# CONFIG_AK8974 is not set
# CONFIG_AK8975 is not set
# CONFIG_AK09911 is not set
# CONFIG_ALS31300 is not set
# CONFIG_BMC150_MAGN_I2C is not set
# CONFIG_BMC150_MAGN_SPI is not set
# CONFIG_MAG3110 is not set
CONFIG_HID_SENSOR_MAGNETOMETER_3D=y
# CONFIG_MMC35240 is not set
# CONFIG_MMC5633 is not set
# CONFIG_MMC5983 is not set
# CONFIG_IIO_ST_MAGN_3AXIS is not set
# CONFIG_INFINEON_TLV493D is not set
# CONFIG_SENSORS_HMC5843_I2C is not set
# CONFIG_SENSORS_HMC5843_SPI is not set
# CONFIG_SENSORS_RM3100_I2C is not set
# CONFIG_SENSORS_RM3100_SPI is not set
# CONFIG_SI7210 is not set
# CONFIG_TI_TMAG5273 is not set
# CONFIG_YAMAHA_YAS530 is not set
# end of Magnetometer sensors

#
# Multiplexers
#
# CONFIG_IIO_MUX is not set
# end of Multiplexers

#
# Inclinometer sensors
#
CONFIG_HID_SENSOR_INCLINOMETER_3D=y
CONFIG_HID_SENSOR_DEVICE_ROTATION=y
# end of Inclinometer sensors

#
# Triggers - standalone
#
# CONFIG_IIO_SYSFS_TRIGGER is not set
# end of Triggers - standalone

#
# Linear and angular position sensors
#
CONFIG_HID_SENSOR_CUSTOM_INTEL_HINGE=y
# end of Linear and angular position sensors

#
# Digital potentiometers
#
# CONFIG_AD5110 is not set
# CONFIG_AD5272 is not set
# CONFIG_DS1803 is not set
# CONFIG_MAX5432 is not set
# CONFIG_MAX5481 is not set
# CONFIG_MAX5487 is not set
# CONFIG_MCP4018 is not set
# CONFIG_MCP4131 is not set
# CONFIG_MCP4531 is not set
# CONFIG_MCP41010 is not set
# CONFIG_TPL0102 is not set
# CONFIG_X9250 is not set
# end of Digital potentiometers

#
# Digital potentiostats
#
# CONFIG_LMP91000 is not set
# end of Digital potentiostats

#
# Pressure sensors
#
# CONFIG_ABP060MG is not set
# CONFIG_ABP2030PA_I2C is not set
# CONFIG_ABP2030PA_SPI is not set
# CONFIG_ROHM_BM1390 is not set
# CONFIG_BMP280 is not set
# CONFIG_DLHL60D is not set
# CONFIG_DPS310 is not set
CONFIG_HID_SENSOR_PRESS=y
# CONFIG_HP03 is not set
# CONFIG_HSC030PA is not set
# CONFIG_ICP10100 is not set
# CONFIG_MPL115_I2C is not set
# CONFIG_MPL115_SPI is not set
# CONFIG_MPL3115 is not set
# CONFIG_MPRLS0025PA_I2C is not set
# CONFIG_MPRLS0025PA_SPI is not set
# CONFIG_MS5611 is not set
# CONFIG_MS5637 is not set
# CONFIG_SDP500 is not set
# CONFIG_IIO_ST_PRESS is not set
# CONFIG_T5403 is not set
# CONFIG_HP206C is not set
# CONFIG_ZPA2326 is not set
# CONFIG_ADP810 is not set
# end of Pressure sensors

#
# Lightning sensors
#
# CONFIG_AS3935 is not set
# end of Lightning sensors

#
# Proximity and distance sensors
#
# CONFIG_D3323AA is not set
# CONFIG_HX9023S is not set
# CONFIG_IRSD200 is not set
# CONFIG_ISL29501 is not set
# CONFIG_LIDAR_LITE_V2 is not set
# CONFIG_MB1232 is not set
# CONFIG_PING is not set
# CONFIG_RFD77402 is not set
# CONFIG_SRF04 is not set
# CONFIG_SX9310 is not set
# CONFIG_SX9324 is not set
# CONFIG_SX9360 is not set
# CONFIG_SX9500 is not set
# CONFIG_SRF08 is not set
# CONFIG_VCNL3020 is not set
# CONFIG_VL53L0X_I2C is not set
# CONFIG_VL53L1X_I2C is not set
# CONFIG_AW96103 is not set
# end of Proximity and distance sensors

#
# Resolver to digital converters
#
# CONFIG_AD2S90 is not set
# CONFIG_AD2S1200 is not set
# CONFIG_AD2S1210 is not set
# end of Resolver to digital converters

#
# Temperature sensors
#
# CONFIG_LTC2983 is not set
# CONFIG_MAXIM_THERMOCOUPLE is not set
CONFIG_HID_SENSOR_TEMP=y
# CONFIG_MLX90614 is not set
# CONFIG_MLX90632 is not set
# CONFIG_MLX90635 is not set
# CONFIG_TMP006 is not set
# CONFIG_TMP007 is not set
# CONFIG_TMP117 is not set
# CONFIG_TSYS01 is not set
# CONFIG_TSYS02D is not set
# CONFIG_MAX30208 is not set
# CONFIG_MAX31856 is not set
# CONFIG_MAX31865 is not set
# CONFIG_MCP9600 is not set
# end of Temperature sensors

# CONFIG_NTB is not set
# CONFIG_PWM is not set

#
# IRQ chip support
#
CONFIG_IRQCHIP=y
CONFIG_IRQ_MSI_LIB=y
# CONFIG_AL_FIC is not set
# CONFIG_XILINX_INTC is not set
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
CONFIG_RESET_CONTROLLER=y
# CONFIG_RESET_GPIO is not set
# CONFIG_RESET_INTEL_GW is not set
# CONFIG_RESET_SIMPLE is not set
# CONFIG_RESET_TI_SYSCON is not set
# CONFIG_RESET_TI_TPS380X is not set

#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_PHY_CAN_TRANSCEIVER is not set
CONFIG_PHY_GOOGLE_USB=y
CONFIG_USB_LGM_PHY=y
# CONFIG_PHY_NXP_PTN3222 is not set
# CONFIG_PHY_NXP_TJA1145 is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_CADENCE_TORRENT is not set
# CONFIG_PHY_CADENCE_DPHY is not set
# CONFIG_PHY_CADENCE_DPHY_RX is not set
# CONFIG_PHY_CADENCE_SIERRA is not set
# CONFIG_PHY_CADENCE_SALVO is not set
# CONFIG_PHY_INTEL_LGM_COMBO is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
CONFIG_PHY_CPCAP_USB=y
# CONFIG_PHY_MAPPHONE_MDM6600 is not set
# CONFIG_PHY_OCELOT_SERDES is not set
CONFIG_PHY_QCOM_USB_HS=y
CONFIG_PHY_QCOM_USB_HSIC=y
CONFIG_PHY_SAMSUNG_USB2=y
# CONFIG_PHY_TI_DS125DF111 is not set
CONFIG_PHY_TUSB1210=y
# end of PHY Subsystem

# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set

#
# Performance monitor support
#
# CONFIG_DWC_PCIE_PMU is not set
# end of Performance monitor support

CONFIG_RAS=y
CONFIG_USB4=y
CONFIG_USB4_CONFIGFS=y
# CONFIG_USB4_DEBUGFS_WRITE is not set
# CONFIG_USB4_DMA_TEST is not set
# CONFIG_USB4_STREAM is not set

#
# Android
#
CONFIG_ANDROID_BINDER_IPC=y
CONFIG_ANDROID_BINDERFS=y
CONFIG_ANDROID_BINDER_DEVICES="binder0,binder1"
# end of Android

CONFIG_LIBNVDIMM=y
CONFIG_BLK_DEV_PMEM=y
CONFIG_ND_CLAIM=y
CONFIG_ND_BTT=y
CONFIG_BTT=y
CONFIG_ND_PFN=y
CONFIG_NVDIMM_PFN=y
CONFIG_NVDIMM_DAX=y
CONFIG_OF_PMEM=y
# CONFIG_RAMDAX is not set
CONFIG_NVDIMM_KEYS=y
# CONFIG_NVDIMM_SECURITY_TEST is not set
CONFIG_DAX=y
CONFIG_DEV_DAX=y
# CONFIG_DEV_DAX_PMEM is not set
CONFIG_DEV_DAX_FSDEV=y
# CONFIG_DEV_DAX_KMEM is not set
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
CONFIG_NVMEM_LAYOUTS=y

#
# Layout Types
#
# CONFIG_NVMEM_LAYOUT_SL28_VPD is not set
# CONFIG_NVMEM_LAYOUT_ONIE_TLV is not set
# CONFIG_NVMEM_LAYOUT_U_BOOT_ENV is not set
# end of Layout Types

# CONFIG_NVMEM_RMEM is not set
# CONFIG_NVMEM_U_BOOT_ENV is not set

#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
# end of HW tracing support

# CONFIG_FPGA is not set
# CONFIG_FSI is not set
CONFIG_TEE=y
CONFIG_TEE_DMABUF_HEAPS=y
CONFIG_OPTEE_STATIC_PROTMEM_POOL=y
# CONFIG_MUX_CORE is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
CONFIG_COUNTER=y
# CONFIG_INTEL_QEP is not set
# CONFIG_INTERRUPT_CNT is not set
CONFIG_MOST=y
CONFIG_MOST_USB_HDM=y
# CONFIG_MOST_CDEV is not set
# CONFIG_MOST_SND is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_VALIDATE_FS_PARSER=y
CONFIG_FS_IOMAP=y
CONFIG_FS_STACK=y
CONFIG_BUFFER_HEAD=y
CONFIG_LEGACY_DIRECT_IO=y
# CONFIG_EXT2_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
CONFIG_JFS_FS=y
CONFIG_JFS_POSIX_ACL=y
CONFIG_JFS_SECURITY=y
CONFIG_JFS_DEBUG=y
# CONFIG_JFS_STATISTICS is not set
CONFIG_XFS_FS=y
# CONFIG_XFS_SUPPORT_V4 is not set
# CONFIG_XFS_SUPPORT_ASCII_CI is not set
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
CONFIG_XFS_DRAIN_INTENTS=y
CONFIG_XFS_LIVE_HOOKS=y
CONFIG_XFS_MEMORY_BUFS=y
CONFIG_XFS_BTREE_IN_MEM=y
CONFIG_XFS_ONLINE_SCRUB=y
# CONFIG_XFS_ONLINE_SCRUB_STATS is not set
CONFIG_XFS_ONLINE_REPAIR=y
# CONFIG_XFS_WARN is not set
# CONFIG_XFS_DEBUG is not set
CONFIG_GFS2_FS=y
CONFIG_GFS2_FS_LOCKING_DLM=y
CONFIG_OCFS2_FS=y
CONFIG_OCFS2_FS_O2CB=y
CONFIG_OCFS2_FS_USERSPACE_CLUSTER=y
CONFIG_OCFS2_FS_STATS=y
# CONFIG_OCFS2_DEBUG_MASKLOG is not set
CONFIG_OCFS2_DEBUG_FS=y
CONFIG_BTRFS_FS=y
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
CONFIG_BTRFS_ASSERT=y
# CONFIG_BTRFS_EXPERIMENTAL is not set
CONFIG_NILFS2_FS=y
CONFIG_F2FS_FS=y
CONFIG_F2FS_STAT_FS=y
CONFIG_F2FS_FS_XATTR=y
CONFIG_F2FS_FS_POSIX_ACL=y
CONFIG_F2FS_FS_SECURITY=y
CONFIG_F2FS_CHECK_FS=y
CONFIG_F2FS_FAULT_INJECTION=y
CONFIG_F2FS_FS_COMPRESSION=y
CONFIG_F2FS_FS_LZO=y
CONFIG_F2FS_FS_LZORLE=y
CONFIG_F2FS_FS_LZ4=y
CONFIG_F2FS_FS_LZ4HC=y
CONFIG_F2FS_FS_ZSTD=y
# CONFIG_F2FS_IOSTAT is not set
# CONFIG_F2FS_UNFAIR_RWSEM is not set
CONFIG_ZONEFS_FS=y
CONFIG_FS_DAX=y
CONFIG_FS_DAX_PMD=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
CONFIG_FS_ENCRYPTION=y
CONFIG_FS_ENCRYPTION_ALGS=y
CONFIG_FS_ENCRYPTION_INLINE_CRYPT=y
CONFIG_FS_VERITY=y
CONFIG_FS_VERITY_BUILTIN_SIGNATURES=y
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=y
CONFIG_CUSE=y
CONFIG_VIRTIO_FS=y
CONFIG_FUSE_DAX=y
# CONFIG_FUSE_PASSTHROUGH is not set
CONFIG_FUSE_IO_URING=y
CONFIG_OVERLAY_FS=y
CONFIG_OVERLAY_FS_REDIRECT_DIR=y
CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW=y
CONFIG_OVERLAY_FS_INDEX=y
# CONFIG_OVERLAY_FS_NFS_EXPORT is not set
# CONFIG_OVERLAY_FS_XINO_AUTO is not set
# CONFIG_OVERLAY_FS_METACOPY is not set
CONFIG_OVERLAY_FS_DEBUG=y

#
# Caches
#
CONFIG_NETFS_SUPPORT=y
# CONFIG_NETFS_STATS is not set
# CONFIG_NETFS_DEBUG is not set
CONFIG_FSCACHE=y
# CONFIG_FSCACHE_STATS is not set
CONFIG_CACHEFILES=y
# CONFIG_CACHEFILES_DEBUG is not set
# CONFIG_CACHEFILES_ERROR_INJECTION is not set
# CONFIG_CACHEFILES_ONDEMAND is not set
# end of Caches

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=y
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_FAT_DEFAULT_UTF8 is not set
CONFIG_EXFAT_FS=y
CONFIG_EXFAT_DEFAULT_IOCHARSET="utf8"
# CONFIG_NTFS_FS is not set
CONFIG_NTFS3_FS=y
# CONFIG_NTFS3_64BIT_CLUSTER is not set
CONFIG_NTFS3_LZX_XPRESS=y
CONFIG_NTFS3_FS_POSIX_ACL=y
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
# CONFIG_PROC_VMCORE_DEVICE_DUMP is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_PROC_PID_ARCH_STATUS=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_TMPFS_INODE64 is not set
CONFIG_TMPFS_QUOTA=y
CONFIG_ARCH_SUPPORTS_HUGETLBFS=y
CONFIG_HUGETLBFS=y
# CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON is not set
CONFIG_HUGETLB_PAGE=y
CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y
CONFIG_HUGETLB_PMD_PAGE_TABLE_SHARING=y
CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
CONFIG_CONFIGFS_FS=y
# end of Pseudo filesystems

CONFIG_MISC_FILESYSTEMS=y
CONFIG_ORANGEFS_FS=y
CONFIG_ADFS_FS=y
# CONFIG_ADFS_FS_RW is not set
CONFIG_AFFS_FS=y
CONFIG_ECRYPT_FS=y
CONFIG_ECRYPT_FS_MESSAGING=y
CONFIG_HFS_FS=y
CONFIG_HFSPLUS_FS=y
CONFIG_BEFS_FS=y
# CONFIG_BEFS_DEBUG is not set
CONFIG_BFS_FS=y
# CONFIG_EFS_FS is not set
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_FS_DEBUG=0
CONFIG_JFFS2_FS_WRITEBUFFER=y
# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
CONFIG_JFFS2_SUMMARY=y
CONFIG_JFFS2_FS_XATTR=y
CONFIG_JFFS2_FS_POSIX_ACL=y
CONFIG_JFFS2_FS_SECURITY=y
CONFIG_JFFS2_COMPRESSION_OPTIONS=y
CONFIG_JFFS2_ZLIB=y
CONFIG_JFFS2_LZO=y
CONFIG_JFFS2_RTIME=y
CONFIG_JFFS2_RUBIN=y
# CONFIG_JFFS2_CMODE_NONE is not set
CONFIG_JFFS2_CMODE_PRIORITY=y
# CONFIG_JFFS2_CMODE_SIZE is not set
# CONFIG_JFFS2_CMODE_FAVOURLZO is not set
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_UBIFS_FS_ZSTD=y
CONFIG_UBIFS_ATIME_SUPPORT=y
CONFIG_UBIFS_FS_XATTR=y
CONFIG_UBIFS_FS_SECURITY=y
# CONFIG_UBIFS_FS_AUTHENTICATION is not set
CONFIG_CRAMFS=y
CONFIG_CRAMFS_BLOCKDEV=y
CONFIG_CRAMFS_MTD=y
CONFIG_SQUASHFS=y
# CONFIG_SQUASHFS_FILE_CACHE is not set
CONFIG_SQUASHFS_FILE_DIRECT=y
CONFIG_SQUASHFS_DECOMP_MULTI=y
# CONFIG_SQUASHFS_CHOICE_DECOMP_BY_MOUNT is not set
# CONFIG_SQUASHFS_COMPILE_DECOMP_SINGLE is not set
CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI=y
# CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI_PERCPU is not set
# CONFIG_SQUASHFS_MOUNT_DECOMP_THREADS is not set
CONFIG_SQUASHFS_XATTR=y
# CONFIG_SQUASHFS_COMP_CACHE_FULL is not set
CONFIG_SQUASHFS_ZLIB=y
CONFIG_SQUASHFS_LZ4=y
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
CONFIG_SQUASHFS_ZSTD=y
CONFIG_SQUASHFS_4K_DEVBLK_SIZE=y
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
CONFIG_MINIX_FS=y
CONFIG_OMFS_FS=y
CONFIG_HPFS_FS=y
CONFIG_QNX4FS_FS=y
CONFIG_QNX6FS_FS=y
# CONFIG_QNX6FS_DEBUG is not set
CONFIG_ROMFS_FS=y
# CONFIG_ROMFS_BACKED_BY_BLOCK is not set
# CONFIG_ROMFS_BACKED_BY_MTD is not set
CONFIG_ROMFS_BACKED_BY_BOTH=y
CONFIG_ROMFS_ON_BLOCK=y
CONFIG_ROMFS_ON_MTD=y
CONFIG_PSTORE=y
CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240
CONFIG_PSTORE_COMPRESS=y
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_RAM is not set
# CONFIG_PSTORE_BLK is not set
CONFIG_UFS_FS=y
CONFIG_UFS_FS_WRITE=y
# CONFIG_UFS_DEBUG is not set
CONFIG_EROFS_FS=y
# CONFIG_EROFS_FS_DEBUG is not set
CONFIG_EROFS_FS_XATTR=y
CONFIG_EROFS_FS_POSIX_ACL=y
CONFIG_EROFS_FS_SECURITY=y
# CONFIG_EROFS_FS_BACKED_BY_FILE is not set
CONFIG_EROFS_FS_ZIP=y
# CONFIG_EROFS_FS_ZIP_LZMA is not set
# CONFIG_EROFS_FS_ZIP_DEFLATE is not set
# CONFIG_EROFS_FS_ZIP_ZSTD is not set
# CONFIG_EROFS_FS_ZIP_ACCEL is not set
# CONFIG_EROFS_FS_PCPU_KTHREAD is not set
# CONFIG_EROFS_FS_PAGE_CACHE_SHARE is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
# CONFIG_NFS_V2 is not set
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
# CONFIG_NFS_SWAP is not set
CONFIG_NFS_V4_0=y
CONFIG_NFS_V4_2=y
CONFIG_PNFS_FILE_LAYOUT=y
CONFIG_PNFS_BLOCK=y
CONFIG_PNFS_FLEXFILE_LAYOUT=y
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_V4_SECURITY_LABEL=y
CONFIG_ROOT_NFS=y
CONFIG_NFS_FSCACHE=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
# CONFIG_NFS_DISABLE_UDP_SUPPORT is not set
CONFIG_NFS_V4_2_READ_PLUS=y
CONFIG_NFSD=y
# CONFIG_NFSD_V2 is not set
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_NFSD_PNFS=y
CONFIG_NFSD_BLOCKLAYOUT=y
CONFIG_NFSD_SCSILAYOUT=y
CONFIG_NFSD_FLEXFILELAYOUT=y
CONFIG_NFSD_V4_2_INTER_SSC=y
CONFIG_NFSD_V4_SECURITY_LABEL=y
# CONFIG_NFSD_LEGACY_CLIENT_TRACKING is not set
# CONFIG_NFSD_V4_POSIX_ACLS is not set
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
# CONFIG_NFS_LOCALIO is not set
CONFIG_NFS_V4_2_SSC_HELPER=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_RPCSEC_GSS_KRB5=y
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_SUNRPC_XPRT_RDMA is not set
CONFIG_CEPH_FS=y
CONFIG_CEPH_FSCACHE=y
CONFIG_CEPH_FS_POSIX_ACL=y
# CONFIG_CEPH_FS_SECURITY_LABEL is not set
CONFIG_CIFS=y
# CONFIG_CIFS_STATS2 is not set
CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set
CONFIG_CIFS_DFS_UPCALL=y
CONFIG_CIFS_SWN_UPCALL=y
CONFIG_CIFS_SMB_DIRECT=y
CONFIG_CIFS_FSCACHE=y
# CONFIG_CIFS_ROOT is not set
# CONFIG_CIFS_COMPRESSION is not set
CONFIG_SMB_SERVER=y
# CONFIG_SMB_SERVER_SMBDIRECT is not set
# CONFIG_SMB_SERVER_CHECK_CAP_NET_ADMIN is not set
# CONFIG_SMB_SERVER_KERBEROS5 is not set
CONFIG_SMBDIRECT=y
CONFIG_SMBFS=y
# CONFIG_CODA_FS is not set
CONFIG_AFS_FS=y
# CONFIG_AFS_DEBUG is not set
CONFIG_AFS_FSCACHE=y
# CONFIG_AFS_DEBUG_CURSOR is not set
CONFIG_9P_FS=y
CONFIG_9P_FSCACHE=y
CONFIG_9P_FS_POSIX_ACL=y
CONFIG_9P_FS_SECURITY=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=y
CONFIG_NLS_CODEPAGE_775=y
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_CODEPAGE_852=y
CONFIG_NLS_CODEPAGE_855=y
CONFIG_NLS_CODEPAGE_857=y
CONFIG_NLS_CODEPAGE_860=y
CONFIG_NLS_CODEPAGE_861=y
CONFIG_NLS_CODEPAGE_862=y
CONFIG_NLS_CODEPAGE_863=y
CONFIG_NLS_CODEPAGE_864=y
CONFIG_NLS_CODEPAGE_865=y
CONFIG_NLS_CODEPAGE_866=y
CONFIG_NLS_CODEPAGE_869=y
CONFIG_NLS_CODEPAGE_936=y
CONFIG_NLS_CODEPAGE_950=y
CONFIG_NLS_CODEPAGE_932=y
CONFIG_NLS_CODEPAGE_949=y
CONFIG_NLS_CODEPAGE_874=y
CONFIG_NLS_ISO8859_8=y
CONFIG_NLS_CODEPAGE_1250=y
CONFIG_NLS_CODEPAGE_1251=y
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=y
CONFIG_NLS_ISO8859_3=y
CONFIG_NLS_ISO8859_4=y
CONFIG_NLS_ISO8859_5=y
CONFIG_NLS_ISO8859_6=y
CONFIG_NLS_ISO8859_7=y
CONFIG_NLS_ISO8859_9=y
CONFIG_NLS_ISO8859_13=y
CONFIG_NLS_ISO8859_14=y
CONFIG_NLS_ISO8859_15=y
CONFIG_NLS_KOI8_R=y
CONFIG_NLS_KOI8_U=y
CONFIG_NLS_MAC_ROMAN=y
CONFIG_NLS_MAC_CELTIC=y
CONFIG_NLS_MAC_CENTEURO=y
CONFIG_NLS_MAC_CROATIAN=y
CONFIG_NLS_MAC_CYRILLIC=y
CONFIG_NLS_MAC_GAELIC=y
CONFIG_NLS_MAC_GREEK=y
CONFIG_NLS_MAC_ICELAND=y
CONFIG_NLS_MAC_INUIT=y
CONFIG_NLS_MAC_ROMANIAN=y
CONFIG_NLS_MAC_TURKISH=y
CONFIG_NLS_UTF8=y
CONFIG_NLS_UCS2_UTILS=y
CONFIG_DLM=y
# CONFIG_DLM_DEBUG is not set
CONFIG_UNICODE=y
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
CONFIG_KEYS=y
CONFIG_KEYS_REQUEST_CACHE=y
CONFIG_PERSISTENT_KEYRINGS=y
CONFIG_BIG_KEYS=y
CONFIG_TRUSTED_KEYS=y
# CONFIG_TRUSTED_KEYS_TPM is not set
# CONFIG_TRUSTED_KEYS_TEE is not set

#
# No trust source selected!
#
CONFIG_ENCRYPTED_KEYS=y
# CONFIG_USER_DECRYPTED_DATA is not set
CONFIG_KEY_DH_OPERATIONS=y
CONFIG_KEY_NOTIFICATIONS=y
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_PROC_MEM_ALWAYS_FORCE is not set
CONFIG_PROC_MEM_FORCE_PTRACE=y
# CONFIG_PROC_MEM_NO_FORCE is not set
CONFIG_SECURITY=y
CONFIG_HAS_SECURITY_AUDIT=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_INFINIBAND=y
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_PATH=y
# CONFIG_INTEL_TXT is not set
CONFIG_LSM_MMAP_MIN_ADDR=65536
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_DEVELOP=y
CONFIG_SECURITY_SELINUX_AVC_STATS=y
CONFIG_SECURITY_SELINUX_SIDTAB_HASH_BITS=9
CONFIG_SECURITY_SELINUX_SID2STR_CACHE_SIZE=256
CONFIG_SECURITY_SELINUX_AVC_HASH_BITS=9
# CONFIG_SECURITY_SELINUX_DEBUG is not set
# CONFIG_SECURITY_SMACK is not set
CONFIG_SECURITY_TOMOYO=y
CONFIG_SECURITY_TOMOYO_MAX_ACCEPT_ENTRY=64
CONFIG_SECURITY_TOMOYO_MAX_AUDIT_LOG=32
CONFIG_SECURITY_TOMOYO_OMIT_USERSPACE_LOADER=y
CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING=y
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_LOADPIN is not set
CONFIG_SECURITY_YAMA=y
CONFIG_SECURITY_SAFESETID=y
CONFIG_SECURITY_LOCKDOWN_LSM=y
CONFIG_SECURITY_LOCKDOWN_LSM_EARLY=y
CONFIG_LOCK_DOWN_KERNEL_FORCE_NONE=y
# CONFIG_LOCK_DOWN_KERNEL_FORCE_INTEGRITY is not set
# CONFIG_LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY is not set
CONFIG_SECURITY_LANDLOCK=y
# CONFIG_SECURITY_IPE is not set
CONFIG_INTEGRITY=y
CONFIG_INTEGRITY_SIGNATURE=y
CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
CONFIG_INTEGRITY_TRUSTED_KEYRING=y
CONFIG_INTEGRITY_AUDIT=y
CONFIG_IMA=y
CONFIG_IMA_MEASURE_PCR_IDX=10
CONFIG_IMA_LSM_RULES=y
CONFIG_IMA_NG_TEMPLATE=y
# CONFIG_IMA_SIG_TEMPLATE is not set
CONFIG_IMA_DEFAULT_TEMPLATE="ima-ng"
# CONFIG_IMA_DEFAULT_HASH_SHA1 is not set
CONFIG_IMA_DEFAULT_HASH_SHA256=y
# CONFIG_IMA_DEFAULT_HASH_SHA512 is not set
# CONFIG_IMA_DEFAULT_HASH_WP512 is not set
CONFIG_IMA_DEFAULT_HASH="sha256"
CONFIG_IMA_WRITE_POLICY=y
CONFIG_IMA_READ_POLICY=y
CONFIG_IMA_APPRAISE=y
# CONFIG_IMA_ARCH_POLICY is not set
# CONFIG_IMA_APPRAISE_BUILD_POLICY is not set
# CONFIG_IMA_APPRAISE_BOOTPARAM is not set
CONFIG_IMA_APPRAISE_MODSIG=y
# CONFIG_IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY is not set
# CONFIG_IMA_BLACKLIST_KEYRING is not set
# CONFIG_IMA_LOAD_X509 is not set
CONFIG_IMA_MEASURE_ASYMMETRIC_KEYS=y
CONFIG_IMA_QUEUE_EARLY_BOOT_KEYS=y
# CONFIG_IMA_DISABLE_HTABLE is not set
# CONFIG_IMA_STAGING is not set
CONFIG_EVM=y
CONFIG_EVM_ATTR_FSUUID=y
CONFIG_EVM_ADD_XATTRS=y
# CONFIG_EVM_LOAD_X509 is not set
CONFIG_DEFAULT_SECURITY_SELINUX=y
# CONFIG_DEFAULT_SECURITY_TOMOYO is not set
# CONFIG_DEFAULT_SECURITY_DAC is not set
CONFIG_LSM="landlock,lockdown,yama,safesetid,integrity,tomoyo,selinux,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
# CONFIG_INIT_STACK_NONE is not set
# CONFIG_INIT_STACK_ALL_PATTERN is not set
CONFIG_INIT_STACK_ALL_ZERO=y
CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization

#
# Bounds checking
#
CONFIG_FORTIFY_SOURCE=y
CONFIG_HARDENED_USERCOPY=y
# CONFIG_HARDENED_USERCOPY_DEFAULT_ON is not set
# end of Bounds checking

#
# Hardening of kernel data structures
#
CONFIG_LIST_HARDENED=y
CONFIG_BUG_ON_DATA_CORRUPTION=y
# end of Hardening of kernel data structures

CONFIG_RANDSTRUCT_NONE=y
# end of Kernel hardening options
# end of Security options

CONFIG_ASYNC_CORE=y
CONFIG_ASYNC_MEMCPY=y
CONFIG_ASYNC_XOR=y
CONFIG_ASYNC_PQ=y
CONFIG_ASYNC_RAID6_RECOV=y
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SIG=y
CONFIG_CRYPTO_SIG2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_ACOMP=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=y
# CONFIG_CRYPTO_SELFTESTS is not set
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_PCRYPT=y
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_AUTHENC=y
CONFIG_CRYPTO_KRB5ENC=y
# CONFIG_CRYPTO_BENCHMARK is not set
CONFIG_CRYPTO_ENGINE=y
# end of Crypto core or helper

#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=y
# CONFIG_CRYPTO_DH_RFC7919_GROUPS is not set
CONFIG_CRYPTO_ECC=y
CONFIG_CRYPTO_ECDH=y
# CONFIG_CRYPTO_ECDSA is not set
CONFIG_CRYPTO_ECRDSA=y
CONFIG_CRYPTO_MLDSA=y
# end of Public-key cryptography

#
# Block ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_ANUBIS=y
CONFIG_CRYPTO_ARIA=y
CONFIG_CRYPTO_BLOWFISH=y
CONFIG_CRYPTO_BLOWFISH_COMMON=y
CONFIG_CRYPTO_CAMELLIA=y
CONFIG_CRYPTO_CAST_COMMON=y
CONFIG_CRYPTO_CAST5=y
CONFIG_CRYPTO_CAST6=y
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_KHAZAD=y
CONFIG_CRYPTO_SEED=y
CONFIG_CRYPTO_SERPENT=y
CONFIG_CRYPTO_SM4=y
CONFIG_CRYPTO_SM4_GENERIC=y
CONFIG_CRYPTO_TEA=y
CONFIG_CRYPTO_TWOFISH=y
CONFIG_CRYPTO_TWOFISH_COMMON=y
# end of Block ciphers

#
# Length-preserving ciphers and modes
#
CONFIG_CRYPTO_ADIANTUM=y
CONFIG_CRYPTO_ARC4=y
CONFIG_CRYPTO_CHACHA20=y
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=y
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_HCTR2=y
CONFIG_CRYPTO_LRW=y
CONFIG_CRYPTO_XCTR=y
CONFIG_CRYPTO_XTS=y
# end of Length-preserving ciphers and modes

#
# AEAD (authenticated encryption with associated data) ciphers
#
CONFIG_CRYPTO_AEGIS128=y
CONFIG_CRYPTO_CHACHA20POLY1305=y
CONFIG_CRYPTO_CCM=y
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_GENIV=y
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=y
CONFIG_CRYPTO_ESSIV=y
# end of AEAD (authenticated encryption with associated data) ciphers

#
# Hashes, digests, and MACs
#
# CONFIG_CRYPTO_BLAKE2B is not set
CONFIG_CRYPTO_CMAC=y
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
CONFIG_CRYPTO_RMD160=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_SHA3=y
# CONFIG_CRYPTO_SM3 is not set
CONFIG_CRYPTO_STREEBOG=y
CONFIG_CRYPTO_WP512=y
CONFIG_CRYPTO_XCBC=y
# CONFIG_CRYPTO_XXHASH is not set
# end of Hashes, digests, and MACs

#
# CRCs (cyclic redundancy checks)
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_CRC32 is not set
# end of CRCs (cyclic redundancy checks)

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_842=y
CONFIG_CRYPTO_LZ4=y
CONFIG_CRYPTO_LZ4HC=y
CONFIG_CRYPTO_ZSTD=y
# end of Compression

#
# Random number generation
#
# CONFIG_CRYPTO_DRBG is not set
# CONFIG_CRYPTO_JITTERENTROPY is not set
CONFIG_CRYPTO_KDF800108_CTR=y
# end of Random number generation

#
# Userspace interface (deprecated)
#
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
CONFIG_CRYPTO_USER_API_RNG=y
CONFIG_CRYPTO_USER_API_AEAD=y
CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE=y
# end of Userspace interface (deprecated)

#
# Accelerated Cryptographic Algorithms for CPU (x86)
#
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_BLOWFISH_X86_64=y
CONFIG_CRYPTO_CAMELLIA_X86_64=y
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64=y
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64=y
CONFIG_CRYPTO_CAST5_AVX_X86_64=y
CONFIG_CRYPTO_CAST6_AVX_X86_64=y
CONFIG_CRYPTO_SERPENT_SSE2_X86_64=y
CONFIG_CRYPTO_SERPENT_AVX_X86_64=y
CONFIG_CRYPTO_SERPENT_AVX2_X86_64=y
CONFIG_CRYPTO_SM4_AESNI_AVX_X86_64=y
CONFIG_CRYPTO_SM4_AESNI_AVX2_X86_64=y
CONFIG_CRYPTO_TWOFISH_X86_64=y
CONFIG_CRYPTO_TWOFISH_X86_64_3WAY=y
CONFIG_CRYPTO_TWOFISH_AVX_X86_64=y
CONFIG_CRYPTO_ARIA_AESNI_AVX_X86_64=y
# CONFIG_CRYPTO_ARIA_AESNI_AVX2_X86_64 is not set
# CONFIG_CRYPTO_ARIA_GFNI_AVX512_X86_64 is not set
CONFIG_CRYPTO_AEGIS128_AESNI_SSE2=y
# end of Accelerated Cryptographic Algorithms for CPU (x86)

CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_PADLOCK=y
CONFIG_CRYPTO_DEV_PADLOCK_AES=y
CONFIG_CRYPTO_DEV_PADLOCK_SHA=y
# CONFIG_CRYPTO_DEV_ATMEL_ECC is not set
# CONFIG_CRYPTO_DEV_ATMEL_SHA204A is not set
CONFIG_CRYPTO_DEV_CCP=y
CONFIG_CRYPTO_DEV_CCP_DD=y
# CONFIG_CRYPTO_DEV_SP_CCP is not set
# CONFIG_CRYPTO_DEV_SP_PSP is not set
# CONFIG_CRYPTO_DEV_NITROX_CNN55XX is not set
CONFIG_CRYPTO_DEV_QAT=y
CONFIG_CRYPTO_DEV_QAT_DH895xCC=y
CONFIG_CRYPTO_DEV_QAT_C3XXX=y
CONFIG_CRYPTO_DEV_QAT_C62X=y
# CONFIG_CRYPTO_DEV_QAT_4XXX is not set
# CONFIG_CRYPTO_DEV_QAT_420XX is not set
# CONFIG_CRYPTO_DEV_QAT_6XXX is not set
CONFIG_CRYPTO_DEV_QAT_DH895xCCVF=y
CONFIG_CRYPTO_DEV_QAT_C3XXXVF=y
CONFIG_CRYPTO_DEV_QAT_C62XVF=y
# CONFIG_CRYPTO_DEV_QAT_ERROR_INJECTION is not set
CONFIG_CRYPTO_DEV_VIRTIO=y
# CONFIG_CRYPTO_DEV_SAFEXCEL is not set
# CONFIG_CRYPTO_DEV_CCREE is not set
# CONFIG_CRYPTO_DEV_AMLOGIC_GXL is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_X509_CERTIFICATE_PARSER=y
CONFIG_PKCS8_PRIVATE_KEY_PARSER=y
CONFIG_PKCS7_MESSAGE_PARSER=y
# CONFIG_PKCS7_WAIVE_AUTHATTRS_REJECTION_FOR_MLDSA is not set
CONFIG_PKCS7_TEST_KEY=y
CONFIG_SIGNED_PE_FILE_VERIFICATION=y
# CONFIG_FIPS_SIGNATURE_SELFTEST is not set

#
# Certificates for signature checking
#
CONFIG_MODULE_SIG_KEY="certs/signing_key.pem"
# CONFIG_MODULE_SIG_KEY_TYPE_RSA is not set
CONFIG_MODULE_SIG_KEY_TYPE_MLDSA_44=y
# CONFIG_MODULE_SIG_KEY_TYPE_MLDSA_65 is not set
# CONFIG_MODULE_SIG_KEY_TYPE_MLDSA_87 is not set
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_SYSTEM_TRUSTED_KEYS=""
# CONFIG_SYSTEM_EXTRA_CERTIFICATE is not set
CONFIG_SECONDARY_TRUSTED_KEYRING=y
# CONFIG_SECONDARY_TRUSTED_KEYRING_SIGNED_BY_BUILTIN is not set
# CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
CONFIG_OPENSSL_SUPPORTS_ML_DSA=y
# end of Certificates for signature checking

CONFIG_CRYPTO_KRB5=y
# CONFIG_CRYPTO_KRB5_SELFTESTS is not set
CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_LINEAR_RANGES=y
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_ARCH_USE_SYM_ANNOTATIONS=y
CONFIG_CRC8=y
CONFIG_CRC16=y
CONFIG_CRC_CCITT=y
CONFIG_CRC_ITU_T=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_T10DIF_ARCH=y
CONFIG_CRC32=y
CONFIG_CRC32_ARCH=y
CONFIG_CRC64=y
CONFIG_CRC64_ARCH=y
CONFIG_CRC_OPTIMIZATIONS=y
CONFIG_CRYPTO_HASH_INFO=y
CONFIG_CRYPTO_LIB_UTILS=y
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_AES_ARCH=y
CONFIG_CRYPTO_LIB_AES_CBC_MACS=y
CONFIG_CRYPTO_LIB_ARC4=y
CONFIG_CRYPTO_LIB_GF128MUL=y
CONFIG_CRYPTO_LIB_BLAKE2B=y
CONFIG_CRYPTO_LIB_BLAKE2S_ARCH=y
CONFIG_CRYPTO_LIB_CHACHA=y
CONFIG_CRYPTO_LIB_CHACHA_ARCH=y
CONFIG_CRYPTO_LIB_CURVE25519=y
CONFIG_CRYPTO_LIB_CURVE25519_ARCH=y
CONFIG_CRYPTO_LIB_CURVE25519_GENERIC=y
CONFIG_CRYPTO_LIB_DES=y
CONFIG_CRYPTO_LIB_GF128HASH=y
CONFIG_CRYPTO_LIB_GF128HASH_ARCH=y
CONFIG_CRYPTO_LIB_MD5=y
CONFIG_CRYPTO_LIB_MLDSA=y
CONFIG_CRYPTO_LIB_NH=y
CONFIG_CRYPTO_LIB_NH_ARCH=y
CONFIG_CRYPTO_LIB_POLY1305=y
CONFIG_CRYPTO_LIB_POLY1305_ARCH=y
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=y
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=11
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=y
CONFIG_CRYPTO_LIB_SHA1=y
CONFIG_CRYPTO_LIB_SHA1_ARCH=y
CONFIG_CRYPTO_LIB_SHA256=y
CONFIG_CRYPTO_LIB_SHA256_ARCH=y
CONFIG_CRYPTO_LIB_SHA512=y
CONFIG_CRYPTO_LIB_SHA512_ARCH=y
CONFIG_CRYPTO_LIB_SHA3=y
CONFIG_XOR_BLOCKS=y
CONFIG_XOR_BLOCKS_ARCH=y
CONFIG_RAID6_PQ=y
CONFIG_RAID6_PQ_ARCH=y
# CONFIG_RAID6_PQ_BENCHMARK is not set
CONFIG_XXHASH=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_842_COMPRESS=y
CONFIG_842_DECOMPRESS=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_COMPRESS=y
CONFIG_LZ4HC_COMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMMON=y
CONFIG_ZSTD_COMPRESS=y
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_ARM64=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_RISCV=y
# CONFIG_XZ_DEC_MICROLZMA is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_DECOMPRESS_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_REED_SOLOMON=y
CONFIG_REED_SOLOMON_DEC8=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=y
CONFIG_TEXTSEARCH_BM=y
CONFIG_TEXTSEARCH_FSM=y
CONFIG_INTERVAL_TREE=y
CONFIG_INTERVAL_TREE_SPAN_ITER=y
CONFIG_XARRAY_MULTI=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_CLOSURES=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS_HELPERS=y
CONFIG_NEED_SG_DMA_FLAGS=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_DMA_DECLARE_COHERENT=y
CONFIG_SWIOTLB=y
# CONFIG_SWIOTLB_DYNAMIC is not set
CONFIG_DMA_NEED_SYNC=y
# CONFIG_DMA_RESTRICTED_POOL is not set
CONFIG_DMA_CMA=y
# CONFIG_DMA_NUMA_CMA is not set

#
# Default contiguous memory area size:
#
CONFIG_CMA_SIZE_MBYTES=0
CONFIG_CMA_SIZE_PERCENTAGE=0
# CONFIG_CMA_SIZE_SEL_MBYTES is not set
# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
# CONFIG_CMA_SIZE_SEL_MIN is not set
CONFIG_CMA_SIZE_SEL_MAX=y
CONFIG_CMA_ALIGNMENT=8
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_DMA_MAP_BENCHMARK is not set
CONFIG_SGL_ALLOC=y
CONFIG_CHECK_SIGNATURE=y
# CONFIG_CPUMASK_OFFSTACK is not set
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
CONFIG_IRQ_POLL=y
CONFIG_MPILIB=y
CONFIG_SIGNATURE=y
CONFIG_DIMLIB=y
CONFIG_LIBFDT=y
CONFIG_OID_REGISTRY=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_OVERFLOW_PROTECT=y
CONFIG_VDSO_GETRANDOM=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_SG_POOL=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_MEMREGION=y
CONFIG_ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION=y
CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
CONFIG_ARCH_HAS_COPY_MC=y
CONFIG_ARCH_STACKWALK=y
CONFIG_STACKDEPOT=y
CONFIG_STACKDEPOT_ALWAYS_INIT=y
CONFIG_STACKDEPOT_MAX_FRAMES=64
CONFIG_REF_TRACKER=y
CONFIG_SBITMAP=y
# CONFIG_LWQ_TEST is not set
# end of Library routines

CONFIG_FIRMWARE_TABLE=y
CONFIG_UNION_FIND=y

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DYNAMIC_DEBUG_CORE=y
CONFIG_SYMBOLIC_ERRNAME=y
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_BUGVERBOSE_DETAILED=y
# end of printk and dmesg options

CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_AS_HAS_NON_CONST_ULEB128=y
# CONFIG_DEBUG_INFO_NONE is not set
# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
CONFIG_DEBUG_INFO_DWARF4=y
# CONFIG_DEBUG_INFO_DWARF5 is not set
# CONFIG_DEBUG_INFO_REDUCED is not set
CONFIG_DEBUG_INFO_COMPRESSED_NONE=y
# CONFIG_DEBUG_INFO_COMPRESSED_ZLIB is not set
# CONFIG_DEBUG_INFO_COMPRESSED_ZSTD is not set
# CONFIG_DEBUG_INFO_SPLIT is not set
# CONFIG_DEBUG_INFO_BTF is not set
CONFIG_PAHOLE_HAS_LANG_EXCLUDE=y
# CONFIG_GDB_SCRIPTS is not set
CONFIG_FRAME_WARN=2048
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_HEADERS_INSTALL is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# CONFIG_DEBUG_FORCE_FUNCTION_ALIGN_64B is not set
CONFIG_OBJTOOL=y
# CONFIG_OBJTOOL_WERROR is not set
CONFIG_NOINSTR_VALIDATION=y
# CONFIG_VMLINUX_MAP is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_FS_ALLOW_ALL=y
# CONFIG_DEBUG_FS_ALLOW_NONE is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN=y
CONFIG_UBSAN=y
# CONFIG_UBSAN_TRAP is not set
CONFIG_CC_HAS_UBSAN_BOUNDS_STRICT=y
CONFIG_UBSAN_BOUNDS=y
CONFIG_UBSAN_BOUNDS_STRICT=y
CONFIG_UBSAN_SHIFT=y
# CONFIG_UBSAN_DIV_ZERO is not set
# CONFIG_UBSAN_BOOL is not set
# CONFIG_UBSAN_ENUM is not set
# CONFIG_UBSAN_ALIGNMENT is not set
# CONFIG_TEST_UBSAN is not set
CONFIG_HAVE_ARCH_KCSAN=y
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
CONFIG_NET_DEV_REFCNT_TRACKER=y
CONFIG_NET_NS_REFCNT_TRACKER=y
CONFIG_DEBUG_NET=y
# CONFIG_DEBUG_NET_SMALL_RTNL is not set
# end of Networking Debugging

#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_SLUB_DEBUG=y
# CONFIG_SLUB_DEBUG_ON is not set
CONFIG_SLUB_RCU_DEBUG=y
CONFIG_PAGE_OWNER=y
CONFIG_PAGE_TABLE_CHECK=y
CONFIG_PAGE_TABLE_CHECK_ENFORCED=y
CONFIG_PAGE_POISONING=y
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_ARCH_HAS_DEBUG_WX=y
CONFIG_DEBUG_WX=y
CONFIG_ARCH_HAS_PTDUMP=y
CONFIG_PTDUMP=y
CONFIG_PTDUMP_DEBUGFS=y
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_PER_VMA_LOCK_STATS is not set
CONFIG_DEBUG_OBJECTS=y
# CONFIG_DEBUG_OBJECTS_SELFTEST is not set
CONFIG_DEBUG_OBJECTS_FREE=y
CONFIG_DEBUG_OBJECTS_TIMERS=y
CONFIG_DEBUG_OBJECTS_WORK=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
# CONFIG_SHRINKER_DEBUG is not set
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_SCHED_STACK_END_CHECK=y
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
CONFIG_DEBUG_VFS=y
CONFIG_DEBUG_VM_IRQSOFF=y
CONFIG_DEBUG_VM=y
CONFIG_DEBUG_VM_MAPLE_TREE=y
CONFIG_DEBUG_VM_RB=y
CONFIG_DEBUG_VM_PGFLAGS=y
CONFIG_DEBUG_VM_PGTABLE=y
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
CONFIG_DEBUG_VIRTUAL=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_PER_CPU_MAPS=y
CONFIG_DEBUG_KMAP_LOCAL=y
CONFIG_ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP=y
CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP=y
# CONFIG_MEM_ALLOC_PROFILING is not set
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_KASAN_SW_TAGS=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
CONFIG_KASAN=y
CONFIG_CC_HAS_KASAN_MEMINTRINSIC_PREFIX=y
CONFIG_KASAN_GENERIC=y
# CONFIG_KASAN_OUTLINE is not set
CONFIG_KASAN_INLINE=y
CONFIG_KASAN_STACK=y
CONFIG_KASAN_VMALLOC=y
# CONFIG_KASAN_EXTRA_INFO is not set
CONFIG_HAVE_ARCH_KFENCE=y
CONFIG_KFENCE=y
CONFIG_KFENCE_SAMPLE_INTERVAL=100
CONFIG_KFENCE_NUM_OBJECTS=255
# CONFIG_KFENCE_DEFERRABLE is not set
CONFIG_KFENCE_STATIC_KEYS=y
CONFIG_KFENCE_STRESS_TEST_FAULTS=0
CONFIG_HAVE_ARCH_KMSAN=y
# end of Memory Debugging

# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Oops, Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_TIMEOUT=86400
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_SOFTLOCKUP_DETECTOR_INTR_STORM is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=1
CONFIG_HAVE_HARDLOCKUP_DETECTOR_BUDDY=y
CONFIG_HARDLOCKUP_DETECTOR=y
# CONFIG_HARDLOCKUP_DETECTOR_PREFER_BUDDY is not set
CONFIG_HARDLOCKUP_DETECTOR_PERF=y
# CONFIG_HARDLOCKUP_DETECTOR_BUDDY is not set
# CONFIG_HARDLOCKUP_DETECTOR_ARCH is not set
CONFIG_HARDLOCKUP_DETECTOR_COUNTS_HRTIMER=y
CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=140
CONFIG_BOOTPARAM_HUNG_TASK_PANIC=1
# CONFIG_DETECT_HUNG_TASK_BLOCKER is not set
CONFIG_WQ_WATCHDOG=y
CONFIG_BOOTPARAM_WQ_STALL_PANIC=0
# CONFIG_WQ_CPU_INTENSIVE_REPORT is not set
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# end of Scheduler Debugging

CONFIG_DEBUG_PREEMPT=y
# CONFIG_DEBUG_ATOMIC is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RAW_LOCK_NESTING=y
# CONFIG_LOCK_STAT is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
CONFIG_DEBUG_RWSEMS=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_LOCKDEP=y
CONFIG_LOCKDEP_BITS=20
CONFIG_LOCKDEP_CHAINS_BITS=20
CONFIG_LOCKDEP_STACK_TRACE_BITS=20
CONFIG_LOCKDEP_STACK_TRACE_HASH_BITS=14
CONFIG_LOCKDEP_CIRCULAR_QUEUE_BITS=12
# CONFIG_DEBUG_LOCKDEP is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
CONFIG_CSD_LOCK_WAIT_DEBUG=y
# CONFIG_CSD_LOCK_WAIT_DEBUG_DEFAULT is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

CONFIG_TRACE_IRQFLAGS=y
CONFIG_TRACE_IRQFLAGS_NMI=y
CONFIG_NMI_CHECK_CPU=y
CONFIG_DEBUG_IRQFLAGS=y
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_KOBJECT_RELEASE is not set

#
# Debug kernel data structures
#
CONFIG_DEBUG_LIST=y
CONFIG_DEBUG_PLIST=y
CONFIG_DEBUG_SG=y
CONFIG_DEBUG_NOTIFIERS=y
# CONFIG_DEBUG_CLOSURES is not set
CONFIG_DEBUG_MAPLE_TREE=y
# end of Debug kernel data structures

#
# RCU Debugging
#
CONFIG_PROVE_RCU=y
# CONFIG_RCU_SCALE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_REF_SCALE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=100
CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=0
# CONFIG_RCU_CPU_STALL_CPUTIME is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_EQS_DEBUG=y
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
# CONFIG_LATENCYTOP is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_RETHOOK=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y
CONFIG_HAVE_FTRACE_REGS_HAVING_PT_REGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_NO_PATCHABLE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_JMP=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_OBJTOOL_MCOUNT=y
CONFIG_HAVE_OBJTOOL_NOP_MCOUNT=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_PREEMPTIRQ_TRACEPOINTS=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
CONFIG_TRACEFS_AUTOMOUNT_DEPRECATED=y
# CONFIG_BOOTTIME_TRACING is not set
# CONFIG_FUNCTION_TRACER is not set
# CONFIG_STACK_TRACER is not set
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_PREEMPT_TRACER is not set
# CONFIG_SCHED_TRACER is not set
# CONFIG_HWLAT_TRACER is not set
# CONFIG_OSNOISE_TRACER is not set
# CONFIG_TIMERLAT_TRACER is not set
# CONFIG_MMIOTRACE is not set
# CONFIG_FTRACE_SYSCALLS is not set
# CONFIG_TRACER_SNAPSHOT is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_UPROBE_EVENTS=y
CONFIG_EPROBE_EVENTS=y
CONFIG_BPF_EVENTS=y
CONFIG_DYNAMIC_EVENTS=y
CONFIG_PROBE_EVENTS=y
# CONFIG_SYNTH_EVENTS is not set
# CONFIG_USER_EVENTS is not set
# CONFIG_HIST_TRIGGERS is not set
CONFIG_TRACE_EVENT_INJECT=y
# CONFIG_TRACEPOINT_BENCHMARK is not set
# CONFIG_RING_BUFFER_BENCHMARK is not set
# CONFIG_TRACE_EVAL_MAP_FILE is not set
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS=y
# CONFIG_RING_BUFFER_PERSISTENT_INJECT is not set
# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
# CONFIG_RV is not set
# CONFIG_TRACE_REMOTE_TEST is not set
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
# CONFIG_SAMPLES is not set
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT=y
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT_MULTI=y
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
# CONFIG_STRICT_DEVMEM is not set

#
# x86 Debugging
#
CONFIG_EARLY_PRINTK_USB=y
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
# CONFIG_EARLY_PRINTK_USB_XDBC is not set
# CONFIG_DEBUG_TLBFLUSH is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
CONFIG_DEBUG_ENTRY=y
# CONFIG_DEBUG_NMI_SELFTEST is not set
CONFIG_X86_DEBUG_FPU=y
# CONFIG_PUNIT_ATOM_DEBUG is not set
CONFIG_UNWINDER_ORC=y
# CONFIG_UNWINDER_FRAME_POINTER is not set
# end of x86 Debugging

#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
CONFIG_FAULT_INJECTION=y
CONFIG_FAILSLAB=y
CONFIG_FAIL_PAGE_ALLOC=y
CONFIG_FAULT_INJECTION_USERCOPY=y
CONFIG_FAIL_MAKE_REQUEST=y
CONFIG_FAIL_IO_TIMEOUT=y
CONFIG_FAIL_FUTEX=y
CONFIG_FAULT_INJECTION_DEBUG_FS=y
# CONFIG_FAIL_MMC_REQUEST is not set
# CONFIG_FAIL_SKB_REALLOC is not set
CONFIG_FAULT_INJECTION_CONFIGFS=y
# CONFIG_FAULT_INJECTION_STACKTRACE_FILTER is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_KCOV=y
CONFIG_KCOV_ENABLE_COMPARISONS=y
CONFIG_KCOV_INSTRUMENT_ALL=y
CONFIG_KCOV_IRQ_AREA_SIZE=0x40000
# CONFIG_KCOV_SELFTEST is not set
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_TEST_DHRY is not set
# CONFIG_LKDTM is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_TEST_MULDIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_MAPLE_TREE is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_IDA is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_BITOPS is not set
# CONFIG_TEST_VMALLOC is not set
# CONFIG_TEST_WORKQUEUE is not set
# CONFIG_TEST_BPF is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
# CONFIG_CONTEXT_ANALYSIS_TEST is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_TEST_DYNAMIC_DEBUG is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_TEST_KALLSYMS is not set
# CONFIG_TEST_DEBUG_VIRTUAL is not set
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_HMM is not set
# CONFIG_TEST_FREE_PAGES is not set
# CONFIG_TEST_CLOCKSOURCE_WATCHDOG is not set
# CONFIG_TEST_OBJPOOL is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking
# end of Kernel hacking

CONFIG_IO_URING_ZCRX=y
CONFIG_IO_URING_BPF=y
KernelConfigManager ci-qemu-upstream
KernelRepo git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
ReproCID 0
ReproOpts
ReproSyzID 0
SyzkallerCommit 72524a6625c995608a7d179201dff2195b8d1f66
TargetArch amd64
TargetOS linux

Outputs:
Reproduced
EquivalenceAnalysis
The execution successfully reproduced the crash. The triggered crash matches the expected bug exactly, with the same warning message ("WARNING in qdisc_tree_reduce_backlog") and call trace involving `sfq_perturbation` and `qdisc_tree_reduce_backlog` during `qdisc_reset` triggered by `tc_get_qdisc`.
OtherCrashReports
ReproC
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_tun.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int type, const char *str) {
    addattr_l(n, type, str, strlen(str) + 1);
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

int batch_send_and_wait(int fd, struct nl_batch *b) {
    if (b->offset == 0) return 0;
    
    struct nlmsghdr *last_n = NULL;
    int offset = 0;
    while (offset < b->offset) {
        last_n = (struct nlmsghdr *)(b->buf + offset);
        offset += NLMSG_ALIGN(last_n->nlmsg_len);
    }
    if (last_n) {
        last_n->nlmsg_flags |= NLM_F_ACK;
    }
    
    uint32_t expected_seq = last_n ? last_n->nlmsg_seq : 0;
    
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    b->offset = 0;
    
    if (!last_n) return 0;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return err->error;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

void batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt opt = {0};
    opt.perturb_period = 1; // 1 second
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void generate_deep_prio(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) return;
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 512 * 1024) {
        batch_send_and_wait(nl_fd, b);
    }
    
    for (int i = 1; i <= 3; i++) {
        generate_deep_prio(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .n.nlmsg_seq = 999999,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_tun(const char *name) {
    int fd = open("/dev/net/tun", O_RDWR);
    if (fd < 0) {
        perror("open /dev/net/tun");
        return -1;
    }
    struct ifreq ifr = {0};
    ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, TUNSETIFF, (void *)&ifr) < 0) {
        perror("TUNSETIFF");
        close(fd);
        return -1;
    }
    return fd;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr = {0};
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "tun%ld", id);
    
    int tun_fd = create_tun(ifname);
    if (tun_fd < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    int sndbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
    if (sock < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_protocol = htons(ETH_P_IP);
    sall.sll_ifindex = ifindex;
    
    int prio = 1;
    if (setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
        return NULL;
    }
    
    char pkt[64] = {0};
    struct iphdr *ip = (struct iphdr *)pkt;
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(40);
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x0A000001);
    ip->daddr = htonl(0x0A000002);
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 30; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        
        int handle_counter = 2;
        // Depth 7 creates 1093 qdiscs per band. Total ~2200 qdiscs.
        // This artificially widens the destruction race window to tens of milliseconds.
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 1), 7, &handle_counter);
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 2), 7, &handle_counter);
        batch_add_sfq(&b, ifindex, TC_H_MAKE(1 << 16, 3), TC_H_MAKE(handle_counter << 16, 0));
        
        if (batch_send_and_wait(nl_fd, &b) < 0) {
            printf("[-] batch_send_and_wait failed\n");
        }
        
        // Send packets to fill tun ring and leave some in sfq
        for (int i = 0; i < 1000; i++) {
            sendto(sock, pkt, 40, MSG_DONTWAIT, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // Sweep the sleep time to deterministically hit the race window
        // 960ms to 1018ms
        long sleep_us = 960000 + (iter * 2000);
        usleep(sleep_us);
        
        // Delete root qdisc
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit for timer to fire
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    close(tun_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[4];
    for (long i = 0; i < 4; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 4; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
ReproducedBugTitle
WARNING in qdisc_tree_reduce_backlog
ReproducedCrashReport
------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: syz-executor144/5844
Modules linked in:
CPU: 1 UID: 0 PID: 5844 Comm: syz-executor144 Not tainted syzkaller #1 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 7f b4 87 f8 e9 38 ff ff ff e8 55 a7 1a f8 eb 17 e8 4e a7 1a f8 eb 10 e8 47 a7 1a f8 90 <0f> 0b 90 eb 05 e8 3c a7 1a f8 e8 57 1e 07 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a08a08 EFLAGS: 00010246
RAX: ffffffff89aa8c29 RBX: 000000000000007f RCX: ffff888112af0000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff89aa886b R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8eb63e60 R12: ffffc90000a08b80
R13: 0000000000010003 R14: 000000000000007f R15: ffff8881145f7800
FS:  00007fd4fa9f86c0(0000) GS:ffff8882e86f1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055621761df30 CR3: 0000000114674000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2028/0x2280 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x225/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:prio_reset+0x33/0x130 net/sched/sch_prio.c:136
Code: 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f0 e4 0c f8 4c 8d bb 80 02 00 00 4d 89 fe 49 c1 ee 03 43 0f b6 04 2e <84> c0 0f 85 c8 00 00 00 41 8b 2f 31 ff 89 ee e8 09 e9 0c f8 85 ed
RSP: 0018:ffffc90003aa7068 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff8881ec8de000 RCX: ffff888112af0000
RDX: 0000000000000000 RSI: ffffffff8c321360 RDI: ffff8881ec8de000
RBP: ffff8881ec867a01 R08: ffffffff9060b637 R09: 1ffffffff20c16c6
R10: dffffc0000000000 R11: ffffffff89b84e60 R12: 0000000000000001
R13: dffffc0000000000 R14: 1ffff1103d91bc50 R15: ffff8881ec8de280
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 __qdisc_destroy+0x120/0x470 net/sched/sch_generic.c:1118
 notify_and_destroy net/sched/sch_api.c:1066 [inline]
 qdisc_graft+0x1083/0x1600 net/sched/sch_api.c:1163
 __tc_get_qdisc net/sched/sch_api.c:1532 [inline]
 tc_get_qdisc+0xc0a/0x1250 net/sched/sch_api.c:1560
 rtnetlink_rcv_msg+0x7b9/0xc00 net/core/rtnetlink.c:7085
 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
 __sock_sendmsg net/socket.c:790 [inline]
 __sys_sendto+0x408/0x5a0 net/socket.c:2252
 __do_sys_sendto net/socket.c:2259 [inline]
 __se_sys_sendto net/socket.c:2255 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2255
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd4fc25c47e
Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
 </TASK>
----------------
Code disassembly (best guess):
   0:	41 55                	push   %r13
   2:	41 54                	push   %r12
   4:	53                   	push   %rbx
   5:	48 89 fb             	mov    %rdi,%rbx
   8:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
   f:	fc ff df
  12:	e8 f0 e4 0c f8       	call   0xf80ce507
  17:	4c 8d bb 80 02 00 00 	lea    0x280(%rbx),%r15
  1e:	4d 89 fe             	mov    %r15,%r14
  21:	49 c1 ee 03          	shr    $0x3,%r14
  25:	43 0f b6 04 2e       	movzbl (%r14,%r13,1),%eax
* 2a:	84 c0                	test   %al,%al <-- trapping instruction
  2c:	0f 85 c8 00 00 00    	jne    0xfa
  32:	41 8b 2f             	mov    (%r15),%ebp
  35:	31 ff                	xor    %edi,%edi
  37:	89 ee                	mov    %ebp,%esi
  39:	e8 09 e9 0c f8       	call   0xf80ce947
  3e:	85 ed                	test   %ebp,%ebp

Crash report:
------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Trajectory: (Expand/Collapse All)
Seq Timestamp Type Name Duration
0/0 2026/08/15 16:59 flow repro-c
2h48m Results:
map[EquivalenceAnalysis:The execution successfully reproduced the crash. The triggered crash matches the expected bug exactly, with the same warning message ("WARNING in qdisc_tree_reduce_backlog") and call trace involving `sfq_perturbation` and `qdisc_tree_reduce_backlog` during `qdisc_reset` triggered by `tc_get_qdisc`. OtherCrashReports:<nil> ReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_tun.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int type, const char *str) {
    addattr_l(n, type, str, strlen(str) + 1);
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

int batch_send_and_wait(int fd, struct nl_batch *b) {
    if (b->offset == 0) return 0;
    
    struct nlmsghdr *last_n = NULL;
    int offset = 0;
    while (offset < b->offset) {
        last_n = (struct nlmsghdr *)(b->buf + offset);
        offset += NLMSG_ALIGN(last_n->nlmsg_len);
    }
    if (last_n) {
        last_n->nlmsg_flags |= NLM_F_ACK;
    }
    
    uint32_t expected_seq = last_n ? last_n->nlmsg_seq : 0;
    
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    b->offset = 0;
    
    if (!last_n) return 0;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return err->error;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

void batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt opt = {0};
    opt.perturb_period = 1; // 1 second
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void generate_deep_prio(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) return;
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 512 * 1024) {
        batch_send_and_wait(nl_fd, b);
    }
    
    for (int i = 1; i <= 3; i++) {
        generate_deep_prio(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .n.nlmsg_seq = 999999,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_tun(const char *name) {
    int fd = open("/dev/net/tun", O_RDWR);
    if (fd < 0) {
        perror("open /dev/net/tun");
        return -1;
    }
    struct ifreq ifr = {0};
    ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, TUNSETIFF, (void *)&ifr) < 0) {
        perror("TUNSETIFF");
        close(fd);
        return -1;
    }
    return fd;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr = {0};
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "tun%ld", id);
    
    int tun_fd = create_tun(ifname);
    if (tun_fd < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    int sndbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
    if (sock < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_protocol = htons(ETH_P_IP);
    sall.sll_ifindex = ifindex;
    
    int prio = 1;
    if (setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
        return NULL;
    }
    
    char pkt[64] = {0};
    struct iphdr *ip = (struct iphdr *)pkt;
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(40);
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x0A000001);
    ip->daddr = htonl(0x0A000002);
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 30; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        
        int handle_counter = 2;
        // Depth 7 creates 1093 qdiscs per band. Total ~2200 qdiscs.
        // This artificially widens the destruction race window to tens of milliseconds.
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 1), 7, &handle_counter);
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 2), 7, &handle_counter);
        batch_add_sfq(&b, ifindex, TC_H_MAKE(1 << 16, 3), TC_H_MAKE(handle_counter << 16, 0));
        
        if (batch_send_and_wait(nl_fd, &b) < 0) {
            printf("[-] batch_send_and_wait failed\n");
        }
        
        // Send packets to fill tun ring and leave some in sfq
        for (int i = 0; i < 1000; i++) {
            sendto(sock, pkt, 40, MSG_DONTWAIT, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // Sweep the sleep time to deterministically hit the race window
        // 960ms to 1018ms
        long sleep_us = 960000 + (iter * 2000);
        usleep(sleep_us);
        
        // Delete root qdisc
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit for timer to fire
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    close(tun_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[4];
    for (long i = 0; i < 4; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 4; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
 Reproduced:true ReproducedBugTitle:WARNING in qdisc_tree_reduce_backlog ReproducedCrashReport:------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: syz-executor144/5844
Modules linked in:
CPU: 1 UID: 0 PID: 5844 Comm: syz-executor144 Not tainted syzkaller #1 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 7f b4 87 f8 e9 38 ff ff ff e8 55 a7 1a f8 eb 17 e8 4e a7 1a f8 eb 10 e8 47 a7 1a f8 90 <0f> 0b 90 eb 05 e8 3c a7 1a f8 e8 57 1e 07 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a08a08 EFLAGS: 00010246
RAX: ffffffff89aa8c29 RBX: 000000000000007f RCX: ffff888112af0000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff89aa886b R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8eb63e60 R12: ffffc90000a08b80
R13: 0000000000010003 R14: 000000000000007f R15: ffff8881145f7800
FS:  00007fd4fa9f86c0(0000) GS:ffff8882e86f1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055621761df30 CR3: 0000000114674000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2028/0x2280 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x225/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:prio_reset+0x33/0x130 net/sched/sch_prio.c:136
Code: 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f0 e4 0c f8 4c 8d bb 80 02 00 00 4d 89 fe 49 c1 ee 03 43 0f b6 04 2e <84> c0 0f 85 c8 00 00 00 41 8b 2f 31 ff 89 ee e8 09 e9 0c f8 85 ed
RSP: 0018:ffffc90003aa7068 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff8881ec8de000 RCX: ffff888112af0000
RDX: 0000000000000000 RSI: ffffffff8c321360 RDI: ffff8881ec8de000
RBP: ffff8881ec867a01 R08: ffffffff9060b637 R09: 1ffffffff20c16c6
R10: dffffc0000000000 R11: ffffffff89b84e60 R12: 0000000000000001
R13: dffffc0000000000 R14: 1ffff1103d91bc50 R15: ffff8881ec8de280
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 __qdisc_destroy+0x120/0x470 net/sched/sch_generic.c:1118
 notify_and_destroy net/sched/sch_api.c:1066 [inline]
 qdisc_graft+0x1083/0x1600 net/sched/sch_api.c:1163
 __tc_get_qdisc net/sched/sch_api.c:1532 [inline]
 tc_get_qdisc+0xc0a/0x1250 net/sched/sch_api.c:1560
 rtnetlink_rcv_msg+0x7b9/0xc00 net/core/rtnetlink.c:7085
 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
 __sock_sendmsg net/socket.c:790 [inline]
 __sys_sendto+0x408/0x5a0 net/socket.c:2252
 __do_sys_sendto net/socket.c:2259 [inline]
 __se_sys_sendto net/socket.c:2255 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2255
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd4fc25c47e
Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
 </TASK>
----------------
Code disassembly (best guess):
   0:	41 55                	push   %r13
   2:	41 54                	push   %r12
   4:	53                   	push   %rbx
   5:	48 89 fb             	mov    %rdi,%rbx
   8:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
   f:	fc ff df
  12:	e8 f0 e4 0c f8       	call   0xf80ce507
  17:	4c 8d bb 80 02 00 00 	lea    0x280(%rbx),%r15
  1e:	4d 89 fe             	mov    %r15,%r14
  21:	49 c1 ee 03          	shr    $0x3,%r14
  25:	43 0f b6 04 2e       	movzbl (%r14,%r13,1),%eax
* 2a:	84 c0                	test   %al,%al <-- trapping instruction
  2c:	0f 85 c8 00 00 00    	jne    0xfa
  32:	41 8b 2f             	mov    (%r15),%ebp
  35:	31 ff                	xor    %edi,%edi
  37:	89 ee                	mov    %ebp,%esi
  39:	e8 09 e9 0c f8       	call   0xf80ce947
  3e:	85 ed                	test   %ebp,%ebp
]

1/1 2026/08/15 16:59 action kernel-checkouter
1m Results:
map[KernelSrc:/app/workdir/cache/src/84c803cbdcadef49cbdeb11ddc5bd9f89e1a743a]

2/1 2026/08/15 17:01 action kernel-builder
19m Results:
map[KernelObj:/app/workdir/cache/build/0ca47d397e99cde6b24d128fa68574f63fb8684c]

3/1 2026/08/15 17:20 action codesearch-prepare
13m Results:
map[Index:codesearch-index]

4/1 2026/08/15 17:33 agent initial-researcher
4m Model:
best-expensive

Instruction:
You are a security researcher with deep Linux kernel background.
Your goal is to analyze a Linux kernel bug description and propose a strategy to reproduce it
with a minimal, standalone C program for the strictly defensive purpose of verifying a bugfix.

=== TOOL SELECTION GUIDELINES ===
- When looking up C function or struct definitions, prefer codesearch-definition-source
  and codesearch-struct-layout first.
- Fall back to read-file or grepper only if symbol lookup fails or when inspecting macros,
  headers, or non-C files.

=== CRITICAL PROHIBITIONS ===
- Do NOT propose an exploit. Focus solely on minimal technical reproduction of the bug state.
- Do NOT write long explanations. Keep your analysis and strategy proposal concise.
- Do NOT assume that the target bug has already been fixed just because a git commit title
  or description mentions a similar bug or fix. Commit messages often reference related issues
  or partial fixes. Proceed with proposing a reproduction strategy regardless of historical fix commits.
Prefer calling several tools at the same time to save round-trips.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Reply:
### Bug Analysis

The bug is a race condition between the destruction of a qdisc tree and the `sfq_perturbation` timer. 

1. **The Timer**: When an SFQ qdisc is configured with the `perturb` parameter, it arms a timer (`sfq_perturbation`) that fires periodically (minimum 1 second). When it fires, it takes the root qdisc lock and calls `sfq_rehash()`.
2. **The Backlog Reduction**: `sfq_rehash()` unconditionally calls `qdisc_tree_reduce_backlog()`, which walks up the qdisc tree using `sch->parent` and looks up the parent qdisc in the device's qdisc hash via `qdisc_lookup_rcu()`.
3. **The Race**: When a qdisc tree (e.g., an HTB root with an SFQ leaf) is deleted, `__qdisc_destroy()` first removes the root qdisc from the hash (`qdisc_hash_del()`) and then calls `ops->destroy()`. For HTB, this recursively destroys all classes and their leaf qdiscs. The timer is only cancelled when `sfq_destroy()` is finally reached.
4. **The Crash**: If the `sfq_perturbation` timer fires *after* the parent HTB qdisc has been removed from the hash but *before* the timer is cancelled, `qdisc_tree_reduce_backlog()` will fail to find the parent qdisc and trigger the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

### Reproduction Strategy

To reproduce this issue, we need to:
1. Create a dummy network interface.
2. Set up a classful qdisc (HTB) as the root.
3. Add an HTB class with a very low rate (to ensure packets stay queued).
4. Add an SFQ qdisc as a leaf with `perturb 1` (fires every 1 second).
5. Send a few packets to the interface so they get queued in the SFQ (required because `sfq_perturbation` skips rehashing if the queue is empty).
6. Wait for approximately 1 second and delete the root qdisc.
7. Run this in a loop across multiple threads to reliably hit the race window.

### Minimal C Reproducer

```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct ifreq ifr;
    strcpy(ifr.ifr_name, ifname);
    ioctl(fd, SIOCGIFINDEX, &ifr);
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifr.ifr_ifindex;
    sall.sll_halen = ETH_ALEN;
    
    while (1) {
        // 1. Setup HTB -> SFQ hierarchy
        sprintf(cmd, "tc qdisc add dev %s root handle 1: htb default 1", ifname);
        system(cmd);
        sprintf(cmd, "tc class add dev %s parent 1: classid 1:1 htb rate 1kbit", ifname);
        system(cmd);
        sprintf(cmd, "tc qdisc add dev %s parent 1:1 handle 2: sfq perturb 1", ifname);
        system(cmd);
        
        // 2. Enqueue packets to ensure the SFQ queue is not empty
        char buf[1000] = {0};
        for (int p = 0; p < 5; p++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // 3. Sleep to overlap the root deletion with the 1-second timer firing
        usleep(800000 + (rand() % 200000));
        
        // 4. Delete the root qdisc (triggers the race)
        sprintf(cmd, "tc qdisc del dev %s root 2>/dev/null", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    pthread_t th[10];
    
    // Run 10 concurrent threads to increase RTNL lock contention 
    // and widen the race window.
    for (long i = 0; i < 10; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 10; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```

5/2 2026/08/15 17:33 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 3715
							output: 120
							thoughts: 220
						

Thoughts:
**My Thought Process Regarding the qdisc_tree_reduce_backlog Warning**

Okay, so I've just encountered a warning during what appears to be some kind of network scheduler operation: `WARNING in qdisc_tree_reduce_backlog` with the specific condition `parentid != TC_H_ROOT`. The location points to `net/sched/sch_api.c:797`, and it gives me a precise offset within the `qdisc_tree_reduce_backlog` function. This immediately tells me something unexpected is happening with a queue discipline (qdisc) and its parent relationship. The `TC_H_ROOT` constant is quite significant here; it generally signifies the root of the traffic control hierarchy. Therefore, seeing this warning when the `parentid` is *not* the root suggests a detachment or an incorrect association somewhere in the qdisc tree structure.

My immediate next step, as indicated by the call trace, is to investigate the functions involved. I'll need to dive into `qdisc_tree_reduce_backlog` in `net/sched/sch_api.c` to understand *why* it's checking `parentid != TC_H_ROOT` and what the implications are if this condition is met in a way that triggers the warning. What is the expected state for `parentid` in this context? What does `reduce_backlog` actually do, and how could an invalid parent ID affect that operation?

Simultaneously, the call trace clearly shows that `sfq_rehash` within `net/sched/sch_sfq.c` is the immediate precursor to this warning. This is a strong clue. The `sfq_rehash` function is likely responsible for reorganizing or updating the state of the Stochastic Fairness Queuing (SFQ) qdisc. The fact that this rehash operation is triggering the `qdisc_tree_reduce_backlog` warning means that during the SFQ rehashing process, the qdisc structure being manipulated has an invalid parent ID. I need to examine `sfq_rehash` very closely to understand how it interacts with the qdisc tree and what might lead it to pass an incorrect `parentid` to `qdisc_tree_reduce_backlog`. Is it possible that during the rehashing, a qdisc is being moved or its parent is being changed in a way that breaks the expected tree structure, or perhaps a qdisc is being removed or disconnected from its parent incorrectly?

Furthermore, the call trace also includes `sfq_perturbation` and `call_timer_fn`. This suggests that the rehashing is likely happening asynchronously, possibly triggered by a timer. This introduces another layer of complexity. If a timer-driven operation is causing this issue, it could be related to timing dependencies, race conditions, or a state that's only reachable under specific timing conditions. I need to consider how the timer mechanism might interact with the qdisc modifications and how that could lead to the observed parent ID discrepancy.

In essence, my thought process is to dissect the warning and call trace, identify the key functions and their relationships, and then systematically investigate the code paths within those functions to pinpoint the exact logic that leads to this incorrect `parentid` being passed to `qdisc_tree_reduce_backlog`, particularly in the context of SFQ rehashing, potentially timer-driven. The core problem appears to be a structural inconsistency within the qdisc hierarchy, triggered by an operation on the SFQ qdisc.


6/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

7/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

8/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_perturbation]

Results:
map[SourceCode: 604:	static void sfq_perturbation(struct timer_list *t)
 605:	{
 606:		struct sfq_sched_data *q = timer_container_of(q, t, perturb_timer);
 607:		struct Qdisc *sch = q->sch;
 608:		spinlock_t *root_lock;
 609:		siphash_key_t nkey;
 610:		int period;
 611:	
 612:		get_random_bytes(&nkey, sizeof(nkey));
 613:		rcu_read_lock();
 614:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 615:		spin_lock(root_lock);
 616:		q->perturbation = nkey;
 617:		if (!q->filter_list && q->tail)
 618:			sfq_rehash(sch);
 619:		spin_unlock(root_lock);
 620:	
 621:		/* q->perturb_period can change under us from
 622:		 * sfq_change() and sfq_destroy().
 623:		 */
 624:		period = READ_ONCE(q->perturb_period);
 625:		if (period)
 626:			mod_timer(&q->perturb_timer, jiffies + period);
 627:		rcu_read_unlock();
 628:	}
 SourceFile:net/sched/sch_sfq.c]

9/2 2026/08/15 17:34 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 6262
							output: 38
							thoughts: 325
						

Thoughts:
**A Deep Dive into a `qdisc_tree_reduce_backlog` Warning**

I've stumbled upon a peculiar warning occurring within `qdisc_tree_reduce_backlog`. The specific trigger is this `WARN_ON_ONCE(parentid != TC_H_ROOT);`. My initial thought is that this warning fires when `qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid))` returns `NULL`, yet `parentid` isn't `TC_H_ROOT`. This immediately signals to me that the parent qdisc, which should exist, simply cannot be located.

Observing the call trace is crucial here. It reveals the sequence: `sfq_perturbation` calls `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. This chain of events is key to understanding the context.

I'm focusing on `sfq_perturbation` because it's a timer function. This is significant because timers operate within a specific locking context. The code snippet shows that `sfq_perturbation` acquires the root qdisc lock:

```c
	root_lock = qdisc_lock(qdisc_root_sleeping(sch));
	spin_lock(root_lock);
	q->perturbation = nkey;
	if (!q->filter_list && q->tail)
		sfq_rehash(sch);
	spin_unlock(root_lock);
```

Now, my mind immediately leaps to potential race conditions. What if the qdisc (`sch`) itself is being destroyed, or its parent is undergoing destruction? It's plausible that `sch->parent` might still hold a valid pointer, but the actual parent qdisc has already been removed from the device's qdisc list. Alternatively, could `sfq_perturbation` be executing *after* the qdisc has been logically removed from the tree structure, but *before* its actual destruction is complete? This is where the lifecycle of qdisc destruction becomes paramount. When a qdisc is destroyed, I would expect its associated timers to be properly stopped. This leads me to my next investigative step: I need to scrutinize the `sfq_destroy` function to confirm how it handles timer cleanup.


10/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_destroy]

Results:
map[SourceCode: 765:	static void sfq_destroy(struct Qdisc *sch)
 766:	{
 767:		struct sfq_sched_data *q = qdisc_priv(sch);
 768:	
 769:		tcf_block_put(q->block);
 770:		WRITE_ONCE(q->perturb_period, 0);
 771:		timer_delete_sync(&q->perturb_timer);
 772:		sfq_free(q->ht);
 773:		sfq_free(q->slots);
 774:		kfree(q->red_parms);
 775:	}
 SourceFile:net/sched/sch_sfq.c]

11/2 2026/08/15 17:34 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 6812
							output: 113
							thoughts: 466
						

Thoughts:
**My Thoughts on SFQ Destruction and Tree Integrity**

So, I'm looking at `sfq_destroy`, and I see it calls `timer_delete_sync(&q->perturb_timer);`. My immediate thought is, "What happens if the qdisc I'm trying to destroy is in a weird state? Specifically, what if it's been grafted onto a different parent, or worse, completely replaced?"

My concern stems from the possibility that when a qdisc is *replaced*, it might be taken out of its current tree position, but not immediately destroyed. It lingers, in a sense.

Then, I recall `qdisc_tree_reduce_backlog`. I know that's called from `sfq_rehash`. And `sfq_rehash` itself is triggered when `sfq_perturbation` (a timer) fires. If `sfq_rehash` ends up dropping packets, it calls `qdisc_tree_reduce_backlog(sch, dropped, drop_len);`.

Now, here's the crux of my worry: If `sch` (the qdisc passed to `qdisc_tree_reduce_backlog`) is *no longer in the tree* when `sfq_rehash` is running, then its `parent` pointer might still point to an old parent. But that old parent could have already been destroyed, or `sch` might not be reachable from the tree anymore. This is a problem because `qdisc_tree_reduce_backlog` *walks up the tree* using `sch->parent`.

I know how that parent traversal works: if `sch` is a root qdisc, `parentid` is `TC_H_ROOT`. If it's a child, `parentid` is the handle of its parent. The issue arises when a class is deleted or a qdisc is replaced – the qdisc is *removed from the tree* at that point.

So, is it possible for `qdisc_tree_reduce_backlog` (called from `sfq_rehash`, called from `sfq_perturbation`) to execute when the qdisc is *not* actually in the tree? Yes, I think it is. This happens if the qdisc has been removed from the tree, but its destruction hasn't completed yet.

Here's the subtle timing I'm wrestling with: `qdisc_destroy` is typically handled via RCU. However, `timer_delete_sync` is called directly within `sfq_destroy`, which itself is called *from* `qdisc_destroy`. This means the `sfq_perturbation` timer (and therefore `sfq_rehash` and potentially `qdisc_tree_reduce_backlog`) could still fire and execute *after* the qdisc has been unlinked from the tree, but *before* the actual RCU-based destruction of `qdisc_destroy` has completed. The `qdisc_destroy` call is part of a deferred cleanup (`qdisc_free` called via `rcu_work` or `call_rcu`).

So, the timer can still run, potentially operating on a qdisc that's logically gone from the tree. This feels like a potential race condition. I need to dig into the exact flow of `qdisc_destroy` and `qdisc_free` to be absolutely sure of the cleanup phases and how the timer interaction plays out.


12/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_destroy]

Results:
map[SourceCode:1133:	void qdisc_destroy(struct Qdisc *qdisc)
1134:	{
1135:		if (qdisc->flags & TCQ_F_BUILTIN)
1136:			return;
1137:	
1138:		__qdisc_destroy(qdisc);
1139:	}
 SourceFile:net/sched/sch_generic.c]

13/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_free]

Results:
map[SourceCode:1089:	void qdisc_free(struct Qdisc *qdisc)
1090:	{
1091:		if (qdisc_is_percpu_stats(qdisc)) {
1092:			free_percpu(qdisc->cpu_bstats);
1093:			free_percpu(qdisc->cpu_qstats);
1094:		}
1095:	
1096:		kfree(qdisc);
1097:	}
 SourceFile:net/sched/sch_generic.c]

14/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_free_cb]

Results:
map[SourceCode:1099:	static void qdisc_free_cb(struct rcu_head *head)
1100:	{
1101:		struct Qdisc *q = container_of(head, struct Qdisc, rcu);
1102:	
1103:		qdisc_free(q);
1104:	}
 SourceFile:net/sched/sch_generic.c]

15/2 2026/08/15 17:34 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 7732
							output: 38
							thoughts: 29
						

Thoughts:
**My Thought Process:**

Ah, I've just noticed something in the code. I was looking at `qdisc_destroy`, and it appears that `__qdisc_destroy` is actually the function that's being called by it. That makes sense; it's a common pattern to have a public API function (`qdisc_destroy`) that then delegates to a more internal, lower-level implementation (`__qdisc_destroy`). To fully understand the lifecycle and cleanup process for these queuing disciplines, I need to dive into the details of `__qdisc_destroy` itself. My next step is to examine its implementation to see precisely what operations are performed during the destruction of a queuing discipline.


16/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

17/2 2026/08/15 17:34 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 8181
							output: 42
							thoughts: 1276
						

Thoughts:
**My Thoughts on Qdisc Destruction and Concurrent Operations**

I'm trying to piece together the lifecycle of qdiscs, specifically how they're destroyed, and I've hit upon a potential concurrency issue involving SFQ and its interaction with parent qdiscs.

Here's how I'm seeing it unfold: when a qdisc is destroyed, the `__qdisc_destroy` function is called. This function, in turn, calls the qdisc's specific `destroy` operation, which for SFQ is `sfq_destroy`. This destruction process is synchronous.

Now, `qdisc_put` is responsible for calling `qdisc_destroy` when a qdisc's reference count drops to zero. This seems straightforward when a qdisc is simply replaced. But I'm pondering what happens when a qdisc is a child of a class, and that class itself is deleted.

When a class is deleted, its associated qdisc is also destroyed. This brings me to `sfq_perturbation`. I see that `sfq_perturbation` calls `sfq_rehash`, which then calls `qdisc_tree_reduce_backlog`. The key observation here is that `sfq_perturbation` can be triggered even if `sfq_destroy` hasn't yet completed its `timer_delete_sync` operation. This suggests a window for concurrent execution.

If `sfq_perturbation` runs concurrently with `sfq_destroy`, the latter will indeed wait at `timer_delete_sync`. However, critically, `__qdisc_destroy` calls `qdisc_hash_del(qdisc)` *before* invoking the qdisc's `destroy` operation. `qdisc_hash_del` removes the qdisc from the device's qdisc hash table. This means that `qdisc_lookup_rcu` will no longer be able to find the qdisc once it's been removed from the hash.

Now, let's look at `qdisc_tree_reduce_backlog`. It attempts to find the *parent* qdisc using `qdisc_lookup_rcu`. If the parent qdisc has also been destroyed, or is in the process of being destroyed and has already been removed from the hash, `qdisc_lookup_rcu` will return NULL. This is where the `WARN_ON_ONCE(parentid != TC_H_ROOT);` condition arises.

To solidify this, I'm trying to trace a specific scenario: a classful qdisc (like HTB) with a child SFQ. When the HTB qdisc is destroyed, it cascades destruction to its classes, which in turn destroy their child qdiscs. So, `qdisc_destroy` is called on the root HTB. `__qdisc_destroy` removes the HTB from the hash via `qdisc_hash_del(htb)` and then calls `ops->destroy(htb)`. The HTB's `destroy` operation then iterates through its classes, and for each class, it calls `qdisc_put` on its leaf qdisc (the SFQ).

`qdisc_put` on the SFQ will eventually lead to `qdisc_destroy(sfq)`, and then `__qdisc_destroy(sfq)`. This again calls `qdisc_hash_del(sfq)` followed by `sfq_destroy`. `sfq_destroy` initiates `timer_delete_sync`.

Now, imagine the `sfq_perturbation` timer fires *while* the HTB destruction is in progress, or even while the `qdisc_destroy(htb)` call is active. At this point, the HTB has already been removed from the hash by `qdisc_hash_del(htb)`. The `sfq_perturbation` timer acquires the root qdisc lock. It then calls `sfq_rehash`, which in turn invokes `qdisc_tree_reduce_backlog`.

Crucially, `qdisc_tree_reduce_backlog` takes the parent qdisc's handle, which is the HTB's handle. It then attempts to look up this parent qdisc using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`. Since the HTB was *already* removed from the hash by `__qdisc_destroy` as part of its own destruction, this lookup will return NULL. This is precisely when the `WARN_ON_ONCE(parentid != TC_H_ROOT);` will fire.

To make this specific scenario more likely to trigger packet drops, which are handled by `qdisc_tree_reduce_backlog`, I'm considering how SFQ drops packets. `sfq_rehash` drops packets if certain conditions are met, like exceeding `SFQ_MAX_FLOWS` or a slot's queue length exceeding `q->maxdepth`. However, I'm realizing `sfq_rehash` primarily drops packets when new hash collisions exceed `maxdepth` or `maxflows` *during the rehash process itself*. If `sfq_rehash` doesn't actually drop packets (i.e., `dropped` remains 0), then `qdisc_tree_reduce_backlog(sch, 0, 0)` is called. I need to further investigate the implications of this call with zero dropped packets.


18/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

19/2 2026/08/15 17:34 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 10101
							output: 50
							thoughts: 360
						

Thoughts:
**The Inner Workings of Packet Dropping and State Management in `sfq`**

My current line of thinking revolves around a potential bug related to packet dropping within the `sfq` (Stochastic Fairness Queueing) mechanism, specifically concerning the `qdisc_tree_reduce_backlog` function and its interaction with `sfq_rehash` and `sfq_perturbation`.

I've noticed that even when `n` (presumably the number of packets or some count) is zero, `qdisc_tree_reduce_backlog` will still enter its loop. This is because `sch->parent` will evaluate to true. The function then proceeds to look up the parent qdisc. If this parent lookup returns NULL, a warning will be issued. This observation leads me to believe that `sfq_rehash` isn't strictly necessary for the *actual* dropping of packets in this specific scenario. The critical element seems to be `sfq_rehash` being invoked at a point when the parent has already been removed from the hash table.

However, I'm encountering a dependency: `sfq_perturbation` only calls `sfq_rehash` if `!q->filter_list && q->tail` is true. Crucially, `q->tail` will be non-NULL if there are any packets currently residing within the SFQ. Therefore, for `sfq_rehash` to be called by `sfq_perturbation` under these conditions, there must be at least one packet present in the SFQ.

This leads me to consider a race condition. I need to verify if `sfq_perturbation` can execute concurrently with `qdisc_destroy`. `sfq_perturbation` is implemented as a timer. If the root qdisc is deleted, `qdisc_destroy` is invoked. `qdisc_destroy` first calls `qdisc_hash_del(root)` to remove the root qdisc from the hash table. Subsequently, it calls `ops->destroy(root)` to perform the qdisc-specific cleanup. Now, imagine the timer for `sfq_perturbation` fires immediately after `qdisc_hash_del(root)` has executed but *before* the `timer_delete_sync` in `sfq_destroy` has completed. In this temporal window, the `sfq_perturbation` timer, upon acquiring the root lock, would attempt to call `sfq_rehash`. Since `qdisc_hash_del` has already removed the root from the hash, `qdisc_lookup_rcu` will return NULL, triggering the aforementioned warning.

This brings up a fundamental question: is the root lock actually held throughout the execution of `qdisc_destroy`? To answer this, I need to examine the call sites of `qdisc_destroy`. My understanding of the flow suggests a potential vulnerability if the timing aligns perfectly.


20/2 2026/08/15 17:34 tool codesearch-find-references
0m Args:
map[ContextFile:net/sched/sch_generic.c IncludeSnippetLines:0 Name:qdisc_destroy SourceTreePrefix:]

Results:
map[References:[map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:qdisc_graft SourceFile:net/sched/sch_api.c SourceLine:1151]] TruncatedOutput:false]

21/2 2026/08/15 17:34 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 10543
							output: 37
							thoughts: 27
						

Thoughts:
**My Thought Process:**

Okay, so I'm tracing the execution flow here, and it looks like `qdisc_destroy` is being invoked from within the `qdisc_put` function. My immediate next step, the logical progression of my thinking, is to dive into `qdisc_put` itself. I need to understand precisely *why* and *under what circumstances* `qdisc_destroy` is being called from there. This will involve examining `qdisc_put`'s internal logic, its parameters, and its overall purpose within the queuing discipline management system to fully grasp the context of this `qdisc_destroy` invocation.


22/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_put]

Results:
map[SourceCode:1141:	void qdisc_put(struct Qdisc *qdisc)
1142:	{
1143:		if (!qdisc)
1144:			return;
1145:	
1146:		if (qdisc->flags & TCQ_F_BUILTIN ||
1147:		    !refcount_dec_and_test(&qdisc->refcnt))
1148:			return;
1149:	
1150:		__qdisc_destroy(qdisc);
1151:	}
 SourceFile:net/sched/sch_generic.c]

23/2 2026/08/15 17:34 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 10762
							output: 39
							thoughts: 216
						

Thoughts:
**My Thought Process Regarding `qdisc_put` and Potential Concurrency Issues**

I've been digging into the `qdisc_put` function and its various call sites, noticing it's invoked from several critical operations, including `tc_modify_qdisc` and `tc_get_qdisc`. My primary concern here is the state of locks when `qdisc_put` is executed, particularly during a delete operation via `tc_modify_qdisc` (specifically for `RTM_DELQDISC`).

My initial understanding was that `qdisc_put` is typically called while the `RTNL` lock is held. However, I'm realizing that this doesn't necessarily imply the `qdisc root lock` is also acquired. This distinction is crucial.

I then recalled that `qdisc_tree_reduce_backlog` operates under an `rcu_read_lock`. This is fine on its own. The real point of concern emerges when I consider `sfq_perturbation`. This function, unlike `qdisc_tree_reduce_backlog`, explicitly acquires the `spin_lock(root_lock)`.

This leads me to a potential race condition. If `qdisc_destroy` is called *without* holding the `root_lock`, then `sfq_perturbation` could potentially execute concurrently. This concurrent execution could lead to unexpected behavior or data corruption because `qdisc_destroy` might be in the process of freeing resources while `sfq_perturbation` is attempting to access or modify them under the protection of the `root_lock`.

To confirm this hypothesis and pinpoint the exact call paths, I need to trace `tc_modify_qdisc` and `tc_get_qdisc` when they handle `RTM_DELQDISC`. I need to see precisely how the locks are managed at that point.


24/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:tc_get_qdisc]

Results:
map[SourceCode:1541:	static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1542:				struct netlink_ext_ack *extack)
1543:	{
1544:		struct net *net = sock_net(skb->sk);
1545:		struct tcmsg *tcm = nlmsg_data(n);
1546:		struct nlattr *tca[TCA_MAX + 1];
1547:		struct net_device *dev;
1548:		int err;
1549:	
1550:		err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,
1551:					     rtm_tca_policy, extack);
1552:		if (err < 0)
1553:			return err;
1554:	
1555:		dev = __dev_get_by_index(net, tcm->tcm_ifindex);
1556:		if (!dev)
1557:			return -ENODEV;
1558:	
1559:		netdev_lock_ops(dev);
1560:		err = __tc_get_qdisc(skb, n, extack, dev, tca, tcm);
1561:		netdev_unlock_ops(dev);
1562:	
1563:		return err;
1564:	}
 SourceFile:net/sched/sch_api.c]

25/2 2026/08/15 17:34 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 11412
							output: 40
							thoughts: 60
						

Thoughts:
**A Deep Dive into Qdisc Management**

My initial thought was that `__tc_get_qdisc` might be solely responsible for retrieving queuing discipline (qdisc) information. However, a quick re-evaluation, or perhaps a deeper look into the relevant code or documentation, revealed that my initial assumption was a bit too narrow. I realized that `tc_get_qdisc` is actually the function that encompasses both the retrieval of qdisc information (`RTM_GETQDISC`) and, importantly, the deletion of qdiscs (`RTM_DELQDISC`). This distinction is crucial, as it separates the general query/deletion mechanism from a potentially more specialized or internal function. My next step is to scrutinize `__tc_get_qdisc` itself to understand its precise role and how it might interact with, or be called by, `tc_get_qdisc` for specific operations, particularly concerning the deletion of qdiscs. I need to confirm if `__tc_get_qdisc` is indeed a helper for `RTM_DELQDISC` or if its scope is different altogether.


26/2 2026/08/15 17:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:__tc_get_qdisc]

Results:
map[SourceCode:1471:	static int __tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1472:				  struct netlink_ext_ack *extack,
1473:				  struct net_device *dev,
1474:				  struct nlattr *tca[TCA_MAX + 1],
1475:				  struct tcmsg *tcm)
1476:	{
1477:		struct net *net = sock_net(skb->sk);
1478:		struct Qdisc *q = NULL;
1479:		struct Qdisc *p = NULL;
1480:		u32 clid;
1481:		int err;
1482:	
1483:		clid = tcm->tcm_parent;
1484:		if (clid) {
1485:			if (clid != TC_H_ROOT) {
1486:				if (TC_H_MAJ(clid) != TC_H_MAJ(TC_H_INGRESS)) {
1487:					p = qdisc_lookup(dev, TC_H_MAJ(clid));
1488:					if (!p) {
1489:						NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified classid");
1490:						return -ENOENT;
1491:					}
1492:					q = qdisc_leaf(p, clid, extack);
1493:				} else if (dev_ingress_queue(dev)) {
1494:					q = rtnl_dereference(dev_ingress_queue(dev)->qdisc_sleeping);
1495:				}
1496:			} else {
1497:				q = rtnl_dereference(dev->qdisc);
1498:			}
1499:			if (!q) {
1500:				NL_SET_ERR_MSG(extack, "Cannot find specified qdisc on specified device");
1501:				return -ENOENT;
1502:			}
1503:			if (IS_ERR(q))
1504:				return PTR_ERR(q);
1505:	
1506:			if (tcm->tcm_handle && q->handle != tcm->tcm_handle) {
1507:				NL_SET_ERR_MSG(extack, "Invalid handle");
1508:				return -EINVAL;
1509:			}
1510:		} else {
1511:			q = qdisc_lookup(dev, tcm->tcm_handle);
1512:			if (!q) {
1513:				NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified handle");
1514:				return -ENOENT;
1515:			}
1516:		}
1517:	
1518:		if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1519:			NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
1520:			return -EINVAL;
1521:		}
1522:	
1523:		if (n->nlmsg_type == RTM_DELQDISC) {
1524:			if (!clid) {
1525:				NL_SET_ERR_MSG(extack, "Classid cannot be zero");
1526:				return -EINVAL;
1527:			}
1528:			if (q->handle == 0) {
1529:				NL_SET_ERR_MSG(extack, "Cannot delete qdisc with handle of zero");
1530:				return -ENOENT;
1531:			}
1532:			err = qdisc_graft(dev, p, skb, n, clid, NULL, q, extack);
1533:			if (err != 0)
1534:				return err;
1535:		} else {
1536:			qdisc_get_notify(net, skb, n, clid, q, NULL);
1537:		}
1538:		return 0;
1539:	}
 SourceFile:net/sched/sch_api.c]

27/2 2026/08/15 17:34 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 12645
							output: 38
							thoughts: 36
						

Thoughts:
**My Thought Process Regarding `qdisc_graft`**

Ah, so the core operation here is `qdisc_graft`. My initial understanding is that its purpose is to effectively remove the current queuing discipline (qdisc) and replace it with something inert, essentially a "no-operation" qdisc, which I can represent as `NULL` or more specifically `noop_qdisc`. This implies a state of deactivation or a clean slate for the queuing mechanism. My immediate next step, naturally, is to delve into the implementation of `qdisc_graft` itself to fully grasp how this transition is orchestrated and what are the underlying mechanisms and implications of this replacement.


28/2 2026/08/15 17:35 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_graft]

Results:
map[SourceCode:1091:	static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
1092:			       struct sk_buff *skb, struct nlmsghdr *n, u32 classid,
1093:			       struct Qdisc *new, struct Qdisc *old,
1094:			       struct netlink_ext_ack *extack)
1095:	{
1096:		struct Qdisc *q = old;
1097:		struct net *net = dev_net(dev);
1098:	
1099:		if (parent == NULL) {
1100:			unsigned int i, num_q, ingress;
1101:			struct netdev_queue *dev_queue;
1102:	
1103:			ingress = 0;
1104:			num_q = dev->num_tx_queues;
1105:			if ((q && q->flags & TCQ_F_INGRESS) ||
1106:			    (new && new->flags & TCQ_F_INGRESS)) {
1107:				ingress = 1;
1108:				dev_queue = dev_ingress_queue(dev);
1109:				if (!dev_queue) {
1110:					NL_SET_ERR_MSG(extack, "Device does not have an ingress queue");
1111:					return -ENOENT;
1112:				}
1113:	
1114:				q = rtnl_dereference(dev_queue->qdisc_sleeping);
1115:	
1116:				/* This is the counterpart of that qdisc_refcount_inc_nz() call in
1117:				 * __tcf_qdisc_find() for filter requests.
1118:				 */
1119:				if (!qdisc_refcount_dec_if_one(q)) {
1120:					NL_SET_ERR_MSG(extack,
1121:						       "Current ingress or clsact Qdisc has ongoing filter requests");
1122:					return -EBUSY;
1123:				}
1124:			}
1125:	
1126:			if (dev->flags & IFF_UP)
1127:				dev_deactivate(dev, false);
1128:	
1129:			qdisc_offload_graft_root(dev, new, old, extack);
1130:	
1131:			if (new && new->ops->attach && !ingress)
1132:				goto skip;
1133:	
1134:			if (!ingress) {
1135:				for (i = 0; i < num_q; i++) {
1136:					dev_queue = netdev_get_tx_queue(dev, i);
1137:					old = dev_graft_qdisc(dev_queue, new);
1138:	
1139:					if (new && i > 0)
1140:						qdisc_refcount_inc(new);
1141:					qdisc_put(old);
1142:				}
1143:			} else {
1144:				old = dev_graft_qdisc(dev_queue, NULL);
1145:	
1146:				/* {ingress,clsact}_destroy() @old before grafting @new to avoid
1147:				 * unprotected concurrent accesses to net_device::miniq_{in,e}gress
1148:				 * pointer(s) in mini_qdisc_pair_swap().
1149:				 */
1150:				qdisc_notify(net, skb, n, classid, old, new, extack);
1151:				qdisc_destroy(old);
1152:	
1153:				dev_graft_qdisc(dev_queue, new);
1154:			}
1155:	
1156:	skip:
1157:			if (!ingress) {
1158:				old = rtnl_dereference(dev->qdisc);
1159:				if (new && !new->ops->attach)
1160:					qdisc_refcount_inc(new);
1161:				rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
1162:	
1163:				notify_and_destroy(net, skb, n, classid, old, new, extack);
1164:	
1165:				if (new && new->ops->attach)
1166:					new->ops->attach(new);
1167:			}
1168:	
1169:			if (dev->flags & IFF_UP)
1170:				dev_activate(dev);
1171:		} else {
1172:			const struct Qdisc_class_ops *cops = parent->ops->cl_ops;
1173:			unsigned long cl;
1174:			int err;
1175:	
1176:			/* Only support running class lockless if parent is lockless */
1177:			if (new && (new->flags & TCQ_F_NOLOCK) && !(parent->flags & TCQ_F_NOLOCK))
1178:				qdisc_clear_nolock(new);
1179:	
1180:			if (!cops || !cops->graft)
1181:				return -EOPNOTSUPP;
1182:	
1183:			cl = cops->find(parent, classid);
1184:			if (!cl) {
1185:				NL_SET_ERR_MSG(extack, "Specified class not found");
1186:				return -ENOENT;
1187:			}
1188:	
1189:			if (new && new->ops == &noqueue_qdisc_ops) {
1190:				NL_SET_ERR_MSG(extack, "Cannot assign noqueue to a class");
1191:				return -EINVAL;
1192:			}
1193:	
1194:			if (new &&
1195:			    !(parent->flags & TCQ_F_MQROOT) &&
1196:			    rcu_access_pointer(new->stab)) {
1197:				NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
1198:				return -EINVAL;
1199:			}
1200:			err = cops->graft(parent, cl, new, &old, extack);
1201:			if (err)
1202:				return err;
1203:			notify_and_destroy(net, skb, n, classid, old, new, extack);
1204:		}
1205:		return 0;
1206:	}
 SourceFile:net/sched/sch_api.c]

29/2 2026/08/15 17:35 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 14536
							output: 36
							thoughts: 146
						

Thoughts:
**My Thought Process Regarding Qdisc Destruction and Hashing**

My initial focus is on the `notify_and_destroy` function. I see it calls `qdisc_put(old)`. This immediately triggers a recall of how `qdisc_put` operates. I know that `qdisc_put` decrements the reference count of a qdisc. Crucially, if this reference count drops to zero, `qdisc_put` then invokes `__qdisc_destroy(old)`.

Now, my attention shifts to `__qdisc_destroy`. My understanding is that `__qdisc_destroy` is the function responsible for the actual cleanup and removal of a qdisc from various data structures. I specifically recall that `__qdisc_destroy` calls `qdisc_hash_del(old)`. This tells me that whenever a qdisc is fully destroyed (its refcount hits zero), it is reliably removed from the qdisc hash table. This is a key takeaway: deletion from the hash is a consequence of complete qdisc destruction.

However, a new question arises. My current line of reasoning confirms that qdiscs and classes are removed from the hash upon destruction. But I'm pondering the lifecycle of child qdiscs, particularly in the context of class deletion. Specifically, I'm asking myself: "When a class is deleted, does it also trigger a `qdisc_put` operation on its associated child qdisc?"

To answer this, I need to investigate further. My next step is to examine the specific deletion function for a class type, in this case, `htb_delete`. I anticipate that if a class manages a child qdisc, its deletion routine would likely involve releasing its reference to that child, thus calling `qdisc_put` on it. My mental note is to "check `htb_delete`" to verify this. This would then confirm whether the hashing removal logic also applies indirectly to child qdiscs when their parent class is deleted.


30/2 2026/08/15 17:35 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_delete]

Results:
map[SourceCode:1696:	static int htb_delete(struct Qdisc *sch, unsigned long arg,
1697:			      struct netlink_ext_ack *extack)
1698:	{
1699:		struct htb_sched *q = qdisc_priv(sch);
1700:		struct htb_class *cl = (struct htb_class *)arg;
1701:		struct Qdisc *new_q = NULL;
1702:		int last_child = 0;
1703:		int err;
1704:	
1705:		/* TODO: why don't allow to delete subtree ? references ? does
1706:		 * tc subsys guarantee us that in htb_destroy it holds no class
1707:		 * refs so that we can remove children safely there ?
1708:		 */
1709:		if (cl->children || qdisc_class_in_use(&cl->common)) {
1710:			NL_SET_ERR_MSG(extack, "HTB class in use");
1711:			return -EBUSY;
1712:		}
1713:	
1714:		if (!cl->level && htb_parent_last_child(cl))
1715:			last_child = 1;
1716:	
1717:		if (q->offload) {
1718:			err = htb_destroy_class_offload(sch, cl, last_child, false,
1719:							extack);
1720:			if (err)
1721:				return err;
1722:		}
1723:	
1724:		if (last_child) {
1725:			struct netdev_queue *dev_queue = sch->dev_queue;
1726:	
1727:			if (q->offload)
1728:				dev_queue = htb_offload_get_queue(cl);
1729:	
1730:			new_q = qdisc_create_dflt(dev_queue, &pfifo_qdisc_ops,
1731:						  cl->parent->common.classid,
1732:						  NULL);
1733:			if (q->offload)
1734:				htb_parent_to_leaf_offload(sch, dev_queue, new_q);
1735:		}
1736:	
1737:		sch_tree_lock(sch);
1738:	
1739:		if (!cl->level)
1740:			qdisc_purge_queue(cl->leaf.q);
1741:	
1742:		/* delete from hash and active; remainder in destroy_class */
1743:		qdisc_class_hash_remove(&q->clhash, &cl->common);
1744:		if (cl->parent)
1745:			cl->parent->children--;
1746:	
1747:		htb_deactivate(q, cl);
1748:	
1749:		if (cl->cmode != HTB_CAN_SEND)
1750:			htb_safe_rb_erase(&cl->pq_node,
1751:					  &q->hlevel[cl->level].wait_pq);
1752:	
1753:		if (last_child)
1754:			htb_parent_to_leaf(sch, cl, new_q);
1755:	
1756:		sch_tree_unlock(sch);
1757:	
1758:		htb_destroy_class(sch, cl);
1759:		return 0;
1760:	}
 SourceFile:net/sched/sch_htb.c]

31/2 2026/08/15 17:35 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15703
							output: 38
							thoughts: 104
						

Thoughts:
**My Thought Process Unraveling the HTB Class Destruction Logic**

Okay, so I'm digging into this `htb_destroy_class` function. My initial thought is that it calls `qdisc_put(cl->leaf.q)`. That seems straightforward enough, releasing a queue.

However, a nagging detail pops up: I recall `htb_delete` acquiring the `sch_tree_lock`. For context, `sch_tree_lock(sch)` is essentially a `spin_lock_bh(qdisc_lock(sch))`. This tells me that `htb_delete` is holding the root lock while it's actively modifying the HTB tree structure. This is a critical piece of information because locks are there to prevent race conditions during concurrent modifications.

Now, here's where the confusion arises. If `htb_delete` holds the root lock *during* modification, and `htb_destroy_class` is called *after* `sch_tree_unlock(sch)`, then it implies `htb_destroy_class` is operating *without* the root lock. This seems counterintuitive if `htb_destroy_class` itself is also modifying the tree, or relying on a consistent state that could be altered by another thread.

My immediate next step, then, is to go back and *precisely* examine the implementation of `htb_destroy_class` itself. I need to see exactly what operations it performs and how it interacts with the data structures and locking mechanisms to understand if my initial assumption about the lock state is correct, or if there's a nuance I'm missing in the sequence of operations or the guarantees provided by the lock.


32/2 2026/08/15 17:35 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy_class]

Results:
map[SourceCode:1607:	static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
1608:	{
1609:		if (!cl->level) {
1610:			WARN_ON(!cl->leaf.q);
1611:			qdisc_put(cl->leaf.q);
1612:		}
1613:		gen_kill_estimator(&cl->rate_est);
1614:		tcf_block_put(cl->block);
1615:		kfree(cl);
1616:	}
 SourceFile:net/sched/sch_htb.c]

33/2 2026/08/15 17:35 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 16009
							output: 36
							thoughts: 350
						

Thoughts:
**The Root Cause Analysis of a Potential Race Condition**

My current line of thought is focused on a specific kernel function call: `qdisc_put(cl->leaf.q)`. I've noticed, with growing concern, that this call appears to be happening *without* holding the necessary root lock. This immediately triggers a cascade of potential problems in my mind, as I know `qdisc_put` is a gateway to further operations, including `__qdisc_destroy`.

And yes, as suspected, `__qdisc_destroy` proceeds to call `qdisc_hash_del`, and then crucially, `ops->destroy`. Now, my mind zeros in on a particular scenario: what if `cl->leaf.q` is an SFQ (Stochastic Fairness Queuing) queue? In that case, `__qdisc_destroy` will indeed remove it from the hash table and then invoke `sfq_destroy`.

The critical point of vulnerability emerges when `sfq_destroy` calls `timer_delete_sync(&q->perturb_timer)`. My internal alarm bells are ringing loudly here because of the timing. If this SFQ timer were to fire *after* `qdisc_hash_del` has already executed, but *before* `timer_delete_sync` has completed its work, that timer handler would inevitably acquire the root lock. This is the very lock that `qdisc_put` was *supposed* to be holding, but isn't.

I then trace the execution path within the SFQ perturbation logic. I see that `sfq_perturbation` calls `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. This function, `qdisc_tree_reduce_backlog`, needs to locate the parent of the qdisc being processed. It does this by looking up `sch->parent`.

My understanding is that `sch->parent` in this context refers to the HTB (Hierarchical Token Bucket) classid. The code then attempts to look up this parent qdisc (the HTB one) using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`.

At this juncture, a crucial realization hits me. We are *only* in the process of deleting a leaf *class*, not the entire HTB qdisc. Therefore, it's highly probable – and indeed, my current assessment confirms – that the parent HTB qdisc is *still very much alive and present*. This means `qdisc_lookup_rcu` *should* successfully find the HTB qdisc.

If the HTB qdisc is found, the subsequent calls to `cops->qlen_notify` and `qstats_backlog_sub` are expected and, in this specific scenario, appear to be safe. The operations on the parent qdisc seem to be robust enough to handle this notification from a detached child. So, for this particular race condition involving a leaf SFQ, the current implementation *appears* to be fine.

However, this line of investigation has opened up a new, more significant question in my mind. What happens if we were to delete the *entire* HTB qdisc itself, rather than just one of its child classes? This is a more complex scenario with potentially broader implications, and I need to dive into the `htb_destroy` function to fully understand the implications and identify any potential race conditions there.


34/2 2026/08/15 17:35 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy]

Results:
map[SourceCode:1618:	static void htb_destroy(struct Qdisc *sch)
1619:	{
1620:		struct net_device *dev = qdisc_dev(sch);
1621:		struct tc_htb_qopt_offload offload_opt;
1622:		struct htb_sched *q = qdisc_priv(sch);
1623:		struct hlist_node *next;
1624:		bool nonempty, changed;
1625:		struct htb_class *cl;
1626:		unsigned int i;
1627:	
1628:		cancel_work_sync(&q->work);
1629:		qdisc_watchdog_cancel(&q->watchdog);
1630:		/* This line used to be after htb_destroy_class call below
1631:		 * and surprisingly it worked in 2.4. But it must precede it
1632:		 * because filter need its target class alive to be able to call
1633:		 * unbind_filter on it (without Oops).
1634:		 */
1635:		tcf_block_put(q->block);
1636:	
1637:		for (i = 0; i < q->clhash.hashsize; i++) {
1638:			hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
1639:				tcf_block_put(cl->block);
1640:				cl->block = NULL;
1641:			}
1642:		}
1643:	
1644:		do {
1645:			nonempty = false;
1646:			changed = false;
1647:			for (i = 0; i < q->clhash.hashsize; i++) {
1648:				hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
1649:							  common.hnode) {
1650:					bool last_child;
1651:	
1652:					if (!q->offload) {
1653:						htb_destroy_class(sch, cl);
1654:						continue;
1655:					}
1656:	
1657:					nonempty = true;
1658:	
1659:					if (cl->level)
1660:						continue;
1661:	
1662:					changed = true;
1663:	
1664:					last_child = htb_parent_last_child(cl);
1665:					htb_destroy_class_offload(sch, cl, last_child,
1666:								  true, NULL);
1667:					qdisc_class_hash_remove(&q->clhash,
1668:								&cl->common);
1669:					if (cl->parent)
1670:						cl->parent->children--;
1671:					if (last_child)
1672:						htb_parent_to_leaf(sch, cl, NULL);
1673:					htb_destroy_class(sch, cl);
1674:				}
1675:			}
1676:		} while (changed);
1677:		WARN_ON(nonempty);
1678:	
1679:		qdisc_class_hash_destroy(&q->clhash);
1680:		__qdisc_reset_queue(&q->direct_queue);
1681:	
1682:		if (q->offload) {
1683:			offload_opt = (struct tc_htb_qopt_offload) {
1684:				.command = TC_HTB_DESTROY,
1685:			};
1686:			htb_offload(dev, &offload_opt);
1687:		}
1688:	
1689:		if (!q->direct_qdiscs)
1690:			return;
1691:		for (i = 0; i < q->num_direct_qdiscs && q->direct_qdiscs[i]; i++)
1692:			qdisc_put(q->direct_qdiscs[i]);
1693:		kfree(q->direct_qdiscs);
1694:	}
 SourceFile:net/sched/sch_htb.c]

35/2 2026/08/15 17:35 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 17552
							output: 38
							thoughts: 1681
						

Thoughts:
**My Thought Process Unpacking the HTB/SFQ Destruction Race**

Okay, I've been deep-diving into this HTB and SFQ interaction during destruction, and I think I've pieced together exactly what's going wrong. It's a classic race condition that's been lurking in the code.

It all starts when I initiate the deletion of the root HTB qdisc, something like `tc qdisc del dev eth0 root`. The kernel's response is to first graft a `noop_qdisc` in its place via `qdisc_graft`. Then, the real cleanup begins with `notify_and_destroy`, which ultimately calls `qdisc_put(htb)`. This is where the destruction process for HTB kicks off.

The core of the problem lies within `__qdisc_destroy(htb)`. A critical step here is `qdisc_hash_del(htb)`. This action *removes HTB from the qdisc hash table*. This is important, so let's keep it in mind. Immediately after, `__qdisc_destroy(htb)` invokes the HTB-specific destruction logic via `ops->destroy(htb)`, which is my `htb_destroy` function.

Now, `htb_destroy` is responsible for tearing down the child qdiscs. It iterates through its classes, and for each one, it calls `htb_destroy_class`. Within `htb_destroy_class`, I see it calls `qdisc_put(cl->leaf.q)`. In our scenario, this `cl->leaf.q` is the SFQ qdisc.

So, `qdisc_put(sfq)` is invoked. This, in turn, calls `__qdisc_destroy(sfq)`. And guess what? `__qdisc_destroy(sfq)` also performs a `qdisc_hash_del(sfq)`, and then calls its own destruction operation, `ops->destroy(sfq)`, which is `sfq_destroy`.

Here's where the timer comes into play. `sfq_destroy` calls `timer_delete_sync(&q->perturb_timer)`. Now, imagine if the `sfq_perturbation` timer, which is active because SFQ has `perturb` set and likely has packets (triggering the `if (!q->filter_list && q->tail)` condition), decides to fire *precisely* during this delicate dance between `__qdisc_destroy(htb)` and `sfq_destroy`.

If the timer fires, it needs to acquire locks. It starts with `rcu_read_lock()`, which is fine. But then it proceeds to get the "root lock" for the qdisc hierarchy. How does it do that? It calls `qdisc_root_sleeping(sch)`. Since my SFQ is a child of the HTB class, `qdisc_root_sleeping(sfq)` will return the HTB qdisc. The timer then proceeds to acquire the lock on HTB: `root_lock = qdisc_lock(qdisc_root_sleeping(sch));` followed by `spin_lock(root_lock);`.

This is where the disaster strikes. The timer, now holding the lock on the HTB qdisc, calls `sfq_rehash(sch)`. Inside `sfq_rehash`, it calls `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`. This function, in its wisdom, tries to look up its parent qdisc using `sch->parent`. Crucially, `sch->parent` here refers to the HTB class ID.

And here's the fatal flaw: `qdisc_tree_reduce_backlog` attempts to find the parent qdisc using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`. But remember that step earlier? `__qdisc_destroy(htb)` had *already* called `qdisc_hash_del(htb)`, meaning HTB has been removed from the hash table. So, `qdisc_lookup_rcu` will return `NULL`!

The consequence is immediate: `qdisc_tree_reduce_backlog` hits a `WARN_ON_ONCE(parentid != TC_H_ROOT);`. Since `parentid` is the HTB class ID (not `TC_H_ROOT`), this warning fires, indicating the corruption.

I've traced the sequence very carefully:
1.  `tc qdisc del dev eth0 root` is executed.
2.  `qdisc_graft` replaces the root HTB with a noop qdisc.
3.  `notify_and_destroy` triggers `qdisc_put(htb)`.
4.  `qdisc_put(htb)` calls `__qdisc_destroy(htb)`.
5.  **Crucially, `__qdisc_destroy(htb)` calls `qdisc_hash_del(htb)`. HTB is now gone from the hash.**
6.  `__qdisc_destroy(htb)` calls `ops->destroy(htb)`, which is my `htb_destroy`.
7.  `htb_destroy` starts iterating and calls `htb_destroy_class` for each of its classes.
8.  `htb_destroy_class` eventually calls `qdisc_put(sfq)`.
9.  `qdisc_put(sfq)` calls `__qdisc_destroy(sfq)`.
10. `__qdisc_destroy(sfq)` calls `qdisc_hash_del(sfq)`.
11. `__qdisc_destroy(sfq)` calls `ops->destroy(sfq)`, which is `sfq_destroy`.
12. `sfq_destroy` calls `timer_delete_sync(&q->perturb_timer)`.

The race occurs if the `sfq_perturbation` timer fires *anywhere between step 5 and step 12*. When it fires, it takes the root lock on HTB (because `qdisc_root_sleeping(sfq)` resolves to HTB), and then tries to look up its parent. Since HTB is already gone from the hash (thanks to step 5), the lookup fails, leading to the `WARN_ON_ONCE`.

I've also realized that `qdisc_destroy` itself doesn't hold the root lock throughout its execution. It's called with `rtnl_lock`, but not the qdisc root lock. The timer, however, *does* acquire the root lock. This means these two operations, the `tc qdisc del` and the SFQ timer firing, can indeed run concurrently without one blocking the other due to locking, creating the perfect storm for this race.

To trigger this, I need:
*   A classful root qdisc (HTB in this case).
*   At least one child class within that HTB.
*   An SFQ qdisc attached as a leaf to that class.
*   SFQ configured with a non-zero `perturb` value to activate the timer.
*   SFQ to have at least one packet to satisfy the timer's firing condition.
*   And then, the precise timing for the timer to fire *after* HTB is removed from the hash but *before* SFQ's destruction is fully completed.

It seems the critical window is when HTB is no longer findable via the hash, but the timer is still operating on the qdisc hierarchy.


36/2 2026/08/15 17:35 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

37/2 2026/08/15 17:35 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 21233
							output: 35
							thoughts: 4521
						

Thoughts:
**My Thought Process on Exploiting the SFQ Perturbation Timer Race**

Here's a breakdown of how I arrived at the strategy for triggering this specific race condition, tracing my evolving understanding:

**Initial Observation & Hypothesis:**

The core of the issue seems to revolve around the `perturb_period` in the SFQ qdisc and its interaction with timer events. I know `perturb_period` is measured in seconds (multiplied by `HZ`), so the *minimum* non-zero period is 1 second. My initial thought is: what if I can delete the qdisc *precisely* when its perturbation timer is about to fire? This timing window is the key to a race condition.

**First Attempt: Simple Loop and Timing**

My first instinct is a simple loop:
1. Create an HTB root qdisc.
2. Create an HTB class.
3. Create an SFQ qdisc attached to that class, with `perturb 1`.
4. Send a packet to ensure the SFQ has some state (and a non-NULL `q->tail`, which I later realize is crucial).
5. Wait for approximately 1 second.
6. Delete the root HTB qdisc.

The hope is that the `qdisc_destroy` call initiated by deleting the root will coincide with the SFQ's perturbation timer firing.

**Realization: Timer Re-arming and Speed Constraints**

I quickly realize a flaw: if the timer fires *before* `qdisc_destroy`, the SFQ will simply rehash and re-arm the timer. Then, when `qdisc_destroy` is called, the timer is no longer active, and the race is missed. The 1-second `perturb_period` also feels too slow for a truly tight race.

**Exploring Timer Manipulation:**

*   **Spinning in the Kernel:** I consider that if I were writing a kernel module, I could potentially use spinlocks to achieve a very tight race. However, as a user-space exploit attempt, this isn't an option.
*   **System Time:** I ponder changing the system time, but I know timers in the kernel are based on `jiffies`, not wall-clock time, so this wouldn't work.
*   **`tc qdisc change`:** I investigate if `tc qdisc change` could reset the timer immediately. I recall that `sfq_change` also calls `mod_timer(&q->perturb_timer, jiffies + q->perturb_period);`, meaning it will *always* be at least 1 second in the future.

**Revisiting `perturb_period` and its Limits:**

I re-examine the `perturb_period` constraint:
*   It's an integer.
*   It cannot be negative (checked the code logic).
*   The minimum non-zero value is 1 second.

This reinforces that the timer *will* fire at least 1 second after being armed. This means I can only attempt the race *once per second per SFQ instance*.

**The Breakthrough: Parallelism and Batching**

The limitation of "once per second per SFQ" is a bottleneck. How can I increase the number of *simultaneous* race attempts?

1.  **Multiple SFQ Qdiscs on a Single Device:** My initial thought is to create many SFQ qdiscs under a single HTB root on one interface (like `lo`). I could use `tc filter` to direct packets to different classes, each with its own SFQ. The idea here is that deleting the root HTB would trigger `qdisc_destroy` for all its children, potentially leading to multiple timers firing around the same time. However, I start to question the timing – will the deletions be sequential and slow enough, or too fast?

2.  **Multiple Devices (Dummy Interfaces):** This seems much more promising. Dummy interfaces are easy to create and tear down. I can create N dummy devices, each with its own independent HTB/SFQ hierarchy.
    *   For each dummy device: `ip link add dummyX type dummy`, `ip link set dummyX up`.
    *   For each device: `tc qdisc add ... sfq perturb 1`.
    *   Send a packet to each device to ensure `q->tail` is set.
    *   Wait for ~1 second.
    *   For each device: `tc qdisc del ... root`.

**Refining the Multiple Device Strategy:**

*   **Threads vs. Batching:** My first implementation idea uses threads, with each thread managing its own dummy device. However, I realize that `tc qdisc del` calls across threads would still contend for the RTNL lock, potentially serializing the deletions. A better approach would be to have *one* process orchestrate the setup and teardown of many devices.

*   **Speed of `system()` calls:** I recognize that calling `system()` repeatedly for `tc` commands is slow due to `fork()` and `exec()`. 150 `system()` calls (for 50 devices * 3 commands each) could easily take a second or more, meaning the timers might have already fired and re-armed by the time I get to delete the later devices.

*   **`tc -b` (Batch Mode):** This is the key optimization. Using `tc -b setup.batch` and `tc -b teardown.batch` is significantly faster. The kernel processes these commands in a more efficient, often single, RTNL lock acquisition.

**The Final Strategy:**

My refined strategy, leveraging `tc -b`, is as follows:

1.  **Setup:** Create a large number of dummy interfaces (e.g., 50). For each dummy interface, set up a basic HTB root qdisc, a class, and an SFQ qdisc with `perturb 1`. This is done very efficiently using `tc -b setup.batch`.
2.  **Packet Injection:** For each of these SFQ qdiscs, send a single packet. This is crucial to ensure `q->tail` is non-NULL, which is a prerequisite for the `sfq_rehash` function that the perturbation timer calls. I'll use raw sockets for this.
3.  **The Critical Wait and Teardown:** Sleep for slightly *less* than 1 second (e.g., 0.9 seconds). This allows the timers on all the SFQ qdiscs to be armed and ready to fire at the 1-second mark. Immediately after the sleep, execute `tc -b teardown.batch`.
4.  **Race Window:** When `tc -b teardown.batch` runs, it will rapidly delete all the root qdiscs. Because the deletions are so quick, and many timers are scheduled to fire at the 1-second mark (which is imminent), there's a high probability that at least one `qdisc_destroy` operation will occur *exactly* while a corresponding SFQ perturbation timer is also firing. This overlap is the race condition.
5.  **Dummy Device Dequeue Issue:** A late-stage realization: dummy devices dequeue packets immediately. This means an SFQ attached to a dummy device might *appear* empty, and thus `q->tail` might become NULL *after* the packet is injected. I need to ensure `q->tail` is non-NULL *during* the potential race window. The current setup *should* still work because the packet injection happens *after* the qdisc setup, and the deletion happens *after* a slight delay, giving the SFQ a chance to process the packet and establish `q->tail` before the timer/deletion conflict. If it were problematic, I'd consider more complex packet injection or state management.

This iterative process of understanding the constraints, exploring possibilities, hitting dead ends, and then optimizing based on performance and kernel mechanics leads to the final, robust approach of using batched `tc` commands with numerous dummy devices.


38/2 2026/08/15 17:36 tool codesearch-definition-source
0m Args:
map[ContextFile:drivers/net/dummy.c Name:dummy_xmit]

Results:
map[SourceCode:  63:	static netdev_tx_t dummy_xmit(struct sk_buff *skb, struct net_device *dev)
  64:	{
  65:		dev_lstats_add(dev, skb->len);
  66:	
  67:		skb_tx_timestamp(skb);
  68:		dev_kfree_skb(skb);
  69:		return NETDEV_TX_OK;
  70:	}
 SourceFile:drivers/net/dummy.c]

39/2 2026/08/15 17:36 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 25919
							output: 36
							thoughts: 2342
						

Thoughts:
**My Thought Process on the `sfq_rehash` Bug**

Okay, I've been diving deep into this `sfq_rehash` issue, and it's quite an interesting race condition. Let's break down how I'm thinking about it.

**Initial Understanding: The Dummy Device and Immediate Packet Processing**

My first thought was about how `dummy_xmit` works. I know it's designed to be a no-op in terms of actual transmission, and importantly, it frees the `skb` (socket buffer, which is how packets are represented) immediately. When I attach a queue discipline (qdisc) to a dummy device and send a packet, the flow is:

1.  `dev_queue_xmit` enqueues the packet to the qdisc.
2.  It then immediately calls `qdisc_run`.
3.  `qdisc_run` dequeues the packet and calls `dummy_xmit`.
4.  `dummy_xmit` frees the `skb`.

This means that under normal circumstances with a dummy device and a simple qdisc like SFQ (Stochastic Fairness Queueing), the packet is dequeued and processed almost instantly. The key consequence for SFQ is that if `q->tail` is NULL (meaning the queue is empty), `sfq_rehash` is *not* called. This is because `sfq_rehash` is typically triggered by SFQ's internal timer (`sfq_perturbation`) or other events, and it's designed to clean up or rebalance the queue when there are elements. If there are no elements, there's no need to rehash.

**The Core Problem: Keeping Packets in the SFQ**

The bug I'm trying to expose and understand revolves around `sfq_rehash` potentially trying to access a parent qdisc that has already been destroyed. For this to happen, I need packets to *stay* in the SFQ for a period, allowing a race condition to occur.

**Exploring Ways to Keep Packets Queued**

This led me to consider how to make packets linger in the qdisc structure, specifically within the SFQ.

*   **Stopped Device:** My first idea was to use a stopped device. But then I realized, if a device is down, packets are dropped *before* they even reach the qdisc. So, that's a dead end.
*   **Device UP, Carrier OFF:** What about a device that's UP but has its carrier down? I briefly considered `ip link set dummy0 carrier off`. I'm not entirely sure if dummy devices even support this, and even if they did, I suspect it might not create the kind of queueing delay I need.
*   **Rate Limiting with HTB:** This felt more promising. If I use a traffic shaper like HTB (Hierarchical Token Bucket) and set a *very* low rate, like `1bit` per second, packets would naturally accumulate.
    *   The first packet might go through because the token bucket is full.
    *   But subsequent packets would be delayed, forcing them into the SFQ (which I'd set as the leaf qdisc for HTB).
    *   My concern here was HTB's burst mechanism. The default burst can be a few kilobytes, meaning the first few packets might still be dequeued immediately, overwhelming the very low rate before it has a chance to kick in.
    *   To mitigate this, I thought about setting a very small burst size, like `burst 1b` (1 byte). This, combined with a low rate (`rate 8bit` for example), should force packets into the SFQ. The idea is that if I send, say, 10 packets, the first one goes through, empties the token bucket, and the remaining 9 are throttled by HTB and pushed into the SFQ.

**Refining the HTB Approach for Packet Accumulation**

This led me to a more concrete plan for setting up the HTB:

```c
    FILE *f = fopen("setup.batch", "w");
    for (int i = 0; i < NUM_DEVS; i++) {
        // Root HTB qdisc, default class 1
        fprintf(f, "qdisc add dev dummy%d root handle 1: htb default 1\n", i);
        // A class for SFQ, very limited rate and burst
        fprintf(f, "class add dev dummy%d parent 1: classid 1:1 htb rate 8bit ceil 8bit burst 1b cburst 1b\n", i);
        // SFQ leaf qdisc with perturbation timer
        fprintf(f, "qdisc add dev dummy%d parent 1:1 handle 2: sfq perturb 1\n", i);
    }
    fclose(f);
```

The packet sending loop would then look something like this:

```c
        for (int i = 0; i < NUM_DEVS; i++) {
            char buf[1000] = {0}; // A small packet
            for (int p = 0; p < 10; p++) { // Send 10 packets per device
                sendto(fds[i], buf, sizeof(buf), 0, (struct sockaddr *)&salls[i], sizeof(salls[i]));
            }
        }
```

The reasoning here is: sending 10 packets, each around 1000 bytes, far exceeds the `burst 1b` of the HTB class. The first packet might pass, but the subsequent 9 should be throttled by HTB and deposited into the SFQ attached to that class. This ensures the SFQ *will* have packets when the perturbation timer eventually fires.

**Exploring Alternative Strategies (and dismissing them)**

I also considered other options:

*   **IFB Device:** An Intermediate Functional Block device is a possibility, but it feels like an extra layer when the problem might be solvable with core qdisc mechanisms.
*   **VETH Pair:** Using a `veth` pair and not reading from the other end. My initial thought was that the transmit queue might block. However, I recalled that `veth_xmit` typically calls `netif_rx` or `netif_receive_skb`, and it doesn't inherently block the sender; it would likely just drop packets on the receiving side if its queue is full, rather than creating a backpressure on the transmitting side's qdisc.
*   **Netem:** While `netem` can introduce delays, the requirement was to use HTB as a parent for its classful nature, which is crucial for the bug's exploitation.
*   **Loopback (`lo`):** Similar to the dummy device, the loopback interface processes packets too quickly for a reliable race condition unless artificially throttled.

**The Crucial Insight: Widening the Race Window with Multiple Classes**

The key breakthrough for me was realizing how to *reliably* trigger the race. The core of the bug is a race between the SFQ's perturbation timer firing and the parent qdisc (the HTB class, and ultimately the root HTB qdisc) being destroyed.

Here's the breakdown of the bug's mechanism:

1.  **SFQ Timer (`sfq_perturbation`):** This timer is armed when the SFQ qdisc is created with `perturb 1`. It fires periodically (every 1 second in this case).
2.  **`sfq_rehash`:** When the timer fires, it acquires the root qdisc lock and calls `sfq_rehash`.
3.  **`qdisc_tree_reduce_backlog`:** `sfq_rehash` calls this function, which needs to find the parent qdisc to determine if it's still valid.
4.  **Parent Lookup:** `qdisc_tree_reduce_backlog` looks up `sch->parent`. If `sch->parent` is *not* `TC_H_ROOT`, it proceeds to look up the parent qdisc in the qdisc hash.
5.  **The Race:** The bug occurs if the parent qdisc (the HTB class in our setup) has *already been removed from the qdisc hash* but the SFQ timer fires.
6.  **`__qdisc_destroy` and `qdisc_hash_del`:** When a qdisc is destroyed, `__qdisc_destroy` is called. It first calls `qdisc_hash_del(parent)` to remove the qdisc from the hash, *then* it proceeds with destroying the qdisc's internal structures.
7.  **Locking:** The critical point is that `__qdisc_destroy` is called *without* the root qdisc lock. This means the SFQ timer (which *does* acquire the root qdisc lock) can run concurrently with `__qdisc_destroy`.
8.  **The Window:** The race window is precisely the time between `qdisc_hash_del(parent)` being called and the SFQ's perturbation timer being unscheduled (`timer_delete_sync(&q->perturb_timer)` in `sfq_destroy`). If the SFQ timer fires within this window, it will try to look up its parent in the hash, find it missing, and trigger the `WARN` because `sch->parent` points to a qdisc that's no longer registered.

**The Eureka Moment: Many Classes Mean a Longer `htb_destroy`**

This is where the amplification comes in. Instead of using many dummy devices, I can use a *single* dummy device with a root HTB qdisc, and then create a *large number* of child HTB classes. Each of these classes would then have an SFQ qdisc.

When I go to delete the root HTB qdisc:

1.  `htb_destroy` is called.
2.  It iterates through *all* its child classes to destroy them.
3.  For each child class, it calls `qdisc_put(sfq)`, which eventually leads to `__qdisc_destroy(sfq)`.
4.  `__qdisc_destroy(sfq)` calls `qdisc_hash_del(sfq)`.
5.  Then, `__qdisc_destroy(sfq)` calls `sfq_destroy`.

If I have, say, 1000 classes under the root HTB, the `htb_destroy` loop will take a considerable amount of time. During this time, if *any* of the SFQ timers associated with those classes fires, it will try to look up its parent (the HTB class), which would have already been removed from the qdisc hash *earlier* in the `htb_destroy` process (specifically, when its child HTB class is destroyed, which then calls `qdisc_put` on the SFQ, leading to `__qdisc_destroy` on the SFQ).

This strategy significantly widens the race window. The original scenario with multiple dummy devices and one SFQ per device meant the race was per-device. With a single dummy device and many classes, the destruction of the *single* root HTB qdisc becomes the bottleneck, and all the SFQ timers for its many children are racing against its prolonged destruction process. This is a much more robust way to trigger the bug.

This detailed breakdown shows how I arrived at the HTB-with-low-rate and then the multi-class HTB amplification as the most effective ways to reproduce and understand this intricate race condition.


40/2 2026/08/15 17:36 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy]

Results:
map[SourceCode:1618:	static void htb_destroy(struct Qdisc *sch)
1619:	{
1620:		struct net_device *dev = qdisc_dev(sch);
1621:		struct tc_htb_qopt_offload offload_opt;
1622:		struct htb_sched *q = qdisc_priv(sch);
1623:		struct hlist_node *next;
1624:		bool nonempty, changed;
1625:		struct htb_class *cl;
1626:		unsigned int i;
1627:	
1628:		cancel_work_sync(&q->work);
1629:		qdisc_watchdog_cancel(&q->watchdog);
1630:		/* This line used to be after htb_destroy_class call below
1631:		 * and surprisingly it worked in 2.4. But it must precede it
1632:		 * because filter need its target class alive to be able to call
1633:		 * unbind_filter on it (without Oops).
1634:		 */
1635:		tcf_block_put(q->block);
1636:	
1637:		for (i = 0; i < q->clhash.hashsize; i++) {
1638:			hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
1639:				tcf_block_put(cl->block);
1640:				cl->block = NULL;
1641:			}
1642:		}
1643:	
1644:		do {
1645:			nonempty = false;
1646:			changed = false;
1647:			for (i = 0; i < q->clhash.hashsize; i++) {
1648:				hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
1649:							  common.hnode) {
1650:					bool last_child;
1651:	
1652:					if (!q->offload) {
1653:						htb_destroy_class(sch, cl);
1654:						continue;
1655:					}
1656:	
1657:					nonempty = true;
1658:	
1659:					if (cl->level)
1660:						continue;
1661:	
1662:					changed = true;
1663:	
1664:					last_child = htb_parent_last_child(cl);
1665:					htb_destroy_class_offload(sch, cl, last_child,
1666:								  true, NULL);
1667:					qdisc_class_hash_remove(&q->clhash,
1668:								&cl->common);
1669:					if (cl->parent)
1670:						cl->parent->children--;
1671:					if (last_child)
1672:						htb_parent_to_leaf(sch, cl, NULL);
1673:					htb_destroy_class(sch, cl);
1674:				}
1675:			}
1676:		} while (changed);
1677:		WARN_ON(nonempty);
1678:	
1679:		qdisc_class_hash_destroy(&q->clhash);
1680:		__qdisc_reset_queue(&q->direct_queue);
1681:	
1682:		if (q->offload) {
1683:			offload_opt = (struct tc_htb_qopt_offload) {
1684:				.command = TC_HTB_DESTROY,
1685:			};
1686:			htb_offload(dev, &offload_opt);
1687:		}
1688:	
1689:		if (!q->direct_qdiscs)
1690:			return;
1691:		for (i = 0; i < q->num_direct_qdiscs && q->direct_qdiscs[i]; i++)
1692:			qdisc_put(q->direct_qdiscs[i]);
1693:		kfree(q->direct_qdiscs);
1694:	}
 SourceFile:net/sched/sch_htb.c]

41/2 2026/08/15 17:36 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 29454
							output: 36
							thoughts: 2203
						

Thoughts:
**My Race Condition Hunting Strategy**

I've been dissecting this HTB and SFQ interaction, and I've zeroed in on a race condition that's proving quite stubborn. My initial thought was straightforward: `htb_destroy` iterates through all its child classes and calls `htb_destroy_class` for each. If I have a thousand classes, that's a thousand calls to `htb_destroy_class`. This process is going to take a non-trivial amount of time. The critical part is that during this entire destruction phase, the HTB is already removed from its parent hash table. This means that if *any* of the numerous SFQ timers fire while this destruction is underway, it's going to trigger the bug.

The problem is amplified because I have a thousand SFQ timers, all set to fire at roughly the same time – `jiffies + 1*HZ`. They're practically guaranteed to fire in close proximity. My hypothesis is that if I can time the `tc qdisc del` command to occur *precisely* when these timers are firing, I'll have an almost guaranteed shot at hitting this race.

To refine this setup, I first considered using a single dummy device and a `setup.batch` script to add 1000 classes. The script would look something like this:

```c
    FILE *f = fopen("setup.batch", "w");
    fprintf(f, "qdisc add dev dummy0 root handle 1: htb default 1\n");
    for (int i = 1; i <= 1000; i++) {
        fprintf(f, "class add dev dummy0 parent 1: classid 1:%x htb rate 8bit ceil 8bit burst 100b\n", i);
        fprintf(f, "qdisc add dev dummy0 parent 1:%x handle %x: sfq perturb 1\n", i, i + 1);
        fprintf(f, "filter add dev dummy0 parent 1: protocol ip u32 match ip dst 10.0.0.%d flowid 1:%x\n", i % 256, i);
    }
    fclose(f);
```

However, I quickly realized that adding 1000 `tc filter` entries with `u32` might introduce significant overhead and slow down the setup process itself. I needed a more efficient way to distribute traffic.

This led me to a simpler, more elegant approach: using 100 dummy devices, each with a single class. This translates to 100 separate HTB qdiscs. When I issue a `tc -b teardown.batch` command, it will delete these 100 HTB qdiscs sequentially. Each deletion takes time, and the cumulative time for 100 deletions could be anywhere from 10 to 50 milliseconds. During this crucial window, the SFQ timers will be firing. With 100 timers, they'll naturally fire at various points within this deletion window. This setup is also much simpler to implement – no complex filters needed, just traffic directed to different interfaces. I'm confident this will be a much more reliable way to hit the race.

So, I'm sticking with the 100 dummy devices approach. The C code for this involves setting up each dummy device, creating the `setup.batch` and `teardown.batch` files programmatically, and then entering a loop where I apply the setup, send some packets to trigger timer arming, wait for a specific duration, and then execute the teardown.

Now, a critical detail I had to iron out: timing. If I run `tc -b setup.batch`, it takes time to execute. Let's say it takes 0.1 seconds. Then I send packets, which might take another 0.01 seconds. If I then sleep for 0.9 seconds, the total time elapsed since the *first* `qdisc add` (from `setup.batch`) is around 1.01 seconds. The problem is, the timers, set to fire at `jiffies + 1*HZ`, might have already fired by then. If a timer fires before `teardown.batch` starts, it will simply re-arm itself for another second, and I'll have missed the opportunity to catch it during deletion.

I need the timers to fire *during* the `teardown.batch` execution. To achieve this, I experimented with the sleep duration. A short sleep, say 0.5 seconds, would mean `teardown` runs at 0.6 seconds, well before the timers are due to fire at 1.0 seconds. In this scenario, `sfq_destroy` (called during qdisc deletion) would simply delete the timer before it ever had a chance to fire, thus preventing the race.

Therefore, I absolutely *must* wait until the timers are just about to fire. Since `setup.batch` takes some time, the timers aren't armed simultaneously. The timer for Device 0 might be armed at T=0, while the timer for Device 99 could be armed at T=0.1. If `teardown.batch` takes 0.1 seconds to run, and I start it at T=0.95, then:
* Device 0's timer fires at T=1.0.
* `teardown.batch` deletes Device 50 at T=1.0.

This is perfect! The timer for Device 50 fires *exactly* when it's being deleted. To make this robust against minor timing variations, I decided to randomize the sleep time between 0.8 and 1.0 seconds:

```c
        int sleep_time = 800000 + rand() % 200000;
        usleep(sleep_time);
```
This randomized delay greatly increases the probability of hitting that sweet spot where the timer fires precisely during the deletion process.

I also double-checked if `sfq_perturbation` re-arms itself. The code snippet confirms it:
```c
	period = READ_ONCE(q->perturb_period);
	if (period)
		mod_timer(&q->perturb_timer, jiffies + period);
```
Yes, it does re-arm. If it fires early (before deletion), it schedules another timer. If I delete it before its next scheduled firing, I miss the race. Randomizing the sleep time is the key.

Finally, I briefly wondered if there were other qdiscs with timers that also call `qdisc_tree_reduce_backlog`. I've noted a few: `sfq_rehash` (triggered by `sfq_perturbation` timer), `fq_pie_timer`, `pie_timer`, `cake_timer`, and `choke_perturbation`. I'll need to investigate those later, but for now, my focus is on perfecting this HTB/SFQ race.


42/2 2026/08/15 17:37 tool codesearch-definition-source
0m Error:
log-in to see details

Args:
map[ContextFile:net/sched/sch_pie.c Name:calculate_probability]

Results:
map[SourceCode: SourceFile:]

43/2 2026/08/15 17:37 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 31698
							output: 36
							thoughts: 21
						

Thoughts:
**My Thought Process on Inspecting `pie_timer` in `net/sched/sch_sch_pie.c`**

My immediate instinct when encountering a potential issue or needing to understand a specific component within the networking stack is to delve into the relevant kernel code. In this instance, my focus is squarely on the `pie_timer` function within the `net/sched/sch_pie.c` file. I need to understand precisely how this timer operates within the context of the Proportional Integral controller Enhanced (PIE) queueing discipline.

My primary objective is to unravel its responsibilities. What triggers it? What actions does it perform when it fires? Is it responsible for periodic adjustments to the PIE algorithm's internal state, like updating queue statistics, recalculating probabilities, or potentially invoking other internal functions? I'll be looking for its role in maintaining the PIE algorithm's responsiveness and its ability to adapt to changing network conditions.

Furthermore, I'm keen to understand its interaction with other parts of the PIE module. Does it directly modify parameters used in the dequeueing or enqueueing processes? Does it signal other parts of the scheduler or the networking stack? I'm particularly interested in its relationship with the PIE's probability calculation and how it might influence the overall packet dropping behavior.

Given that this is a timer, I'm also paying close attention to its timing mechanism. What is the interval at which `pie_timer` is scheduled to run? Is this interval fixed, or is it dynamically adjusted based on network load or other factors? Understanding this interval is crucial for grasping the granularity of the PIE algorithm's adaptive behavior.

Finally, I'll be scrutinizing the code for any potential side effects or resource implications. Does the timer involve significant computation or memory allocation? Are there any race conditions or synchronization issues that might arise from its operation? My goal is to ensure a thorough and comprehensive understanding of `pie_timer`'s function and its place within the robust architecture of the PIE queueing discipline.


44/2 2026/08/15 17:37 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_pie.c Name:pie_timer]

Results:
map[SourceCode: 425:	static void pie_timer(struct timer_list *t)
 426:	{
 427:		struct pie_sched_data *q = timer_container_of(q, t, adapt_timer);
 428:		struct Qdisc *sch = q->sch;
 429:		spinlock_t *root_lock;
 430:	
 431:		rcu_read_lock();
 432:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 433:		spin_lock(root_lock);
 434:		pie_calculate_probability(&q->params, &q->vars, sch->qstats.backlog);
 435:	
 436:		/* reset the timer to fire after 'tupdate'. tupdate is in jiffies. */
 437:		if (q->params.tupdate)
 438:			mod_timer(&q->adapt_timer, jiffies + q->params.tupdate);
 439:		spin_unlock(root_lock);
 440:		rcu_read_unlock();
 441:	}
 SourceFile:net/sched/sch_pie.c]

45/2 2026/08/15 17:37 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 32063
							output: 39
							thoughts: 30
						

Thoughts:
**My Internal Monologue**

Alright, let's get this straight in my head. I'm tracing the execution paths, and I've hit a point where it seems like a crucial piece of logic is missing, or at least, not being explicitly invoked. My current focus is on the `pie_timer` function. I'm observing that it *doesn't* appear to be calling `qdisc_tree_reduce_backlog`. This is significant because I'd expect, given the nature of PIE (Proportional Integral controller Enhanced) and its role in managing queueing disciplines, that some form of backlog reduction mechanism would be triggered or accounted for within its timer callback.

This observation immediately sparks a follow-up question: if `pie_timer` isn't directly calling `qdisc_tree_reduce_backlog`, what *is* handling that responsibility, or is it a deliberate omission? This leads me to consider related or adjacent mechanisms. Specifically, I'm wondering about the behavior and potential interactions with `choke_perturbation`. My thinking is, if `pie_timer` isn't directly addressing backlog reduction, perhaps `choke_perturbation` is designed to compensate, or is it another point where this reduction *should* be happening? I need to explore this connection to fully understand the flow and ensure no logic gaps exist in queue management.


46/2 2026/08/15 17:37 tool codesearch-definition-source
0m Error:
log-in to see details

Args:
map[ContextFile:net/sched/sch_choke.c Name:choke_perturbation]

Results:
map[SourceCode: SourceFile:]

47/2 2026/08/15 17:37 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 32137
							output: 55
							thoughts: 18
						

Thoughts:
**My Thought Process on Locating `qdisc_tree_reduce_backlog` Callers**

Alright, so the immediate thought, when faced with the task of understanding `qdisc_tree_reduce_backlog`, is to figure out *where* this function is actually being used. It's a pretty specific name, hinting at some sort of optimization or management within the queuing discipline (qdisc) framework, likely related to reducing the backlog of packets. To get a solid grasp on its context and implications, I need to see what other parts of the kernel, or perhaps specific modules, are invoking it.

My primary method for this, as is standard for kernel development, is to employ a code search. I'm thinking of using tools like `grep`, `find`, or perhaps a more sophisticated IDE-based search if I'm already within a development environment. The exact command will likely involve searching the relevant kernel source directories.

The search query itself is straightforward: `qdisc_tree_reduce_backlog`. I'm looking for any line of code that contains this identifier as a function call, or potentially as a symbol in a header file if it's an exported symbol that other modules might use. The expectation is that this will reveal the callers, and by examining those callers, I'll be able to understand the scenarios and conditions under which this backlog reduction logic is triggered. This is crucial for understanding its purpose and potential impact on network performance and behavior.


48/2 2026/08/15 17:37 tool codesearch-find-references
0m Args:
map[ContextFile:net/sched/sch_api.c IncludeSnippetLines:0 Name:qdisc_tree_reduce_backlog SourceTreePrefix:]

Results:
map[References:[map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:cake_dequeue SourceFile:net/sched/sch_cake.c SourceLine:2244] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:cake_enqueue SourceFile:net/sched/sch_cake.c SourceLine:1836] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:cake_enqueue SourceFile:net/sched/sch_cake.c SourceLine:1858] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:cake_enqueue SourceFile:net/sched/sch_cake.c SourceLine:1964] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:cake_enqueue SourceFile:net/sched/sch_cake.c SourceLine:1968] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:choke_change SourceFile:net/sched/sch_choke.c SourceLine:402] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:choke_drop_by_idx SourceFile:net/sched/sch_choke.c SourceLine:128] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:codel_change SourceFile:net/sched/sch_codel.c SourceLine:192] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:codel_dequeue_drop SourceFile:net/sched/sch_codel.c SourceLine:78] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:fq_change SourceFile:net/sched/sch_fq.c SourceLine:1206] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:fq_codel_change SourceFile:net/sched/sch_fq_codel.c SourceLine:493] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:fq_codel_dequeue_drop SourceFile:net/sched/sch_fq_codel.c SourceLine:329] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:fq_codel_enqueue SourceFile:net/sched/sch_fq_codel.c SourceLine:245] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:fq_codel_enqueue SourceFile:net/sched/sch_fq_codel.c SourceLine:249] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:fq_pie_change SourceFile:net/sched/sch_fq_pie.c SourceLine:377] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:hhf_change SourceFile:net/sched/sch_hhf.c SourceLine:603] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:hhf_enqueue SourceFile:net/sched/sch_hhf.c SourceLine:416] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:netem_dequeue SourceFile:net/sched/sch_netem.c SourceLine:782] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:netem_enqueue SourceFile:net/sched/sch_netem.c SourceLine:672] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:pfifo_tail_enqueue SourceFile:net/sched/sch_fifo.c SourceLine:55] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:pie_change SourceFile:net/sched/sch_pie.c SourceLine:206] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:qdisc_purge_queue SourceFile:include/net/sch_generic.h SourceLine:1089] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:sfq_change SourceFile:net/sched/sch_sfq.c SourceLine:743] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:sfq_enqueue SourceFile:net/sched/sch_sfq.c SourceLine:435] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:sfq_enqueue SourceFile:net/sched/sch_sfq.c SourceLine:469] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:sfq_enqueue SourceFile:net/sched/sch_sfq.c SourceLine:474] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:sfq_rehash SourceFile:net/sched/sch_sfq.c SourceLine:601] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:taprio_enqueue_segmented SourceFile:net/sched/sch_taprio.c SourceLine:618] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:tbf_segment SourceFile:net/sched/sch_tbf.c SourceLine:242] map[ReferenceKind:takes-address-of ReferencingEntityKind:global_variable ReferencingEntityName:__UNIQUE_ID_addressable_qdisc_tree_reduce_backlog_1577 SourceFile:net/sched/sch_api.c SourceLine:814] map[ReferenceKind:takes-address-of ReferencingEntityKind:global_variable ReferencingEntityName:__gendwarfksyms_ptr_qdisc_tree_reduce_backlog SourceFile:net/sched/sch_api.c SourceLine:814] map[ReferenceKind:takes-address-of ReferencingEntityKind:global_variable ReferencingEntityName:__gendwarfksyms_ptr_qdisc_tree_reduce_backlog SourceFile:net/sched/sch_api.c SourceLine:814]] TruncatedOutput:false]

49/2 2026/08/15 17:37 llm initial-researcher
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 33347
							output: 1318
							thoughts: 5130
						

Thoughts:
**Understanding the Race: SFQ Perturbation Timer and Qdisc Deletion**

Alright, I've been digging into this `sfq_rehash` issue and how it interacts with qdisc deletion, and I think I've got a solid grasp on what's happening. My core thought process revolved around identifying which timer-driven functions are truly problematic when a qdisc is being destroyed.

Initially, I thought `sfq_rehash` was the only direct timer offender. But then I realized `netem_dequeue` is called from `qdisc_run`, and `qdisc_run` can be triggered by `netem_watchdog`, which *is* a timer. The catch here is that `netem_dequeue` and `qdisc_run` are called with the root lock held.

Then I saw that `sfq_perturbation` also acquires the root lock. So, I asked myself, "Why is `sfq_perturbation` special then?" The key distinction, I found, is that `sfq_perturbation` is a *standalone* timer, not a watchdog. Watchdogs, like `netem_watchdog`, are explicitly cancelled in `qdisc_destroy` via `qdisc_watchdog_cancel`, which in turn calls `hrtimer_cancel`. This cancellation happens *before* the qdisc is removed from the hash.

However, with `sfq_perturbation`, the destruction path is different. While `ops->destroy` (which eventually leads to `sfq_destroy`) is called *after* `qdisc_hash_del`, the timer itself can still fire concurrently. If `netem_watchdog` fires, it schedules `qdisc_run`, which takes the root lock and calls `qdisc_dequeue`. This works even if the root qdisc is removed from the hash because `qdisc_run` operates on the root qdisc directly, not by looking it up.

The critical point of divergence is `sfq_perturbation`. It directly calls `qdisc_tree_reduce_backlog` (via `sfq_rehash`). And *that* function, `qdisc_tree_reduce_backlog`, is the one that performs a hash lookup for the parent qdisc. If the parent qdisc has already been removed from the hash by `qdisc_hash_del` during destruction, `qdisc_lookup_rcu` will return NULL, and we hit the `WARN_ON_ONCE(parentid != TC_H_ROOT)`. This is the exact race condition.

So, the bug boils down to this: `sfq_perturbation` can fire and attempt to look up its parent qdisc in the hash *after* the qdisc has been removed from that hash during the destruction process, but before the timer itself is properly cancelled within the destruction sequence of SFQ.

Based on this understanding, I devised a reproduction strategy:
1.  **Set up the environment:** I need a dummy interface with an HTB root qdisc.
2.  **Create a class:** Within the HTB root, I'll add a class.
3.  **Attach SFQ:** The crucial step is to add an SFQ qdisc as a leaf to that HTB class, importantly with `perturb 1`.
4.  **Enqueue data:** I must send at least one packet to the dummy interface. This ensures that SFQ's `q->tail` is non-NULL, which is a prerequisite for `sfq_rehash` to actually perform the problematic hash lookup.
5.  **Timing is everything:** I need to time the deletion of the HTB root qdisc to occur very close to when the `sfq_perturbation` timer is scheduled to fire (around its 1-second interval).
6.  **Trigger the race:** I'll delete the HTB root qdisc and repeat this process in a tight loop to maximize the chances of hitting the race window.

To implement this efficiently and reliably, I've developed a C program. It utilizes multiple threads, where each thread manages its own dummy interface and its associated `tc` hierarchy (HTB -> SFQ). Each thread repeatedly sets up this hierarchy, sends a few packets to populate the SFQ, waits for a duration designed to overlap with the timer's firing, and then tears down the hierarchy. The use of `system()` calls for `ip` and `tc` commands is acceptable here because `iproute2` is standard, and concurrent `tc` operations can actually help by introducing contention on the RTNL lock, which can delay the deletion process and thus widen the race window. This approach creates a minimal, standalone reproducer that should reliably trigger the warning.


50/1 2026/08/15 17:38 loop
2h10m
51/2 2026/08/15 17:38 iteration 0
3m
52/3 2026/08/15 17:38 action If
0m Args:
map[OracleFeedback:]

53/3 2026/08/15 17:38 action merge-strategy
0m Results:
map[CurrentReproStrategy:### Bug Analysis

The bug is a race condition between the destruction of a qdisc tree and the `sfq_perturbation` timer. 

1. **The Timer**: When an SFQ qdisc is configured with the `perturb` parameter, it arms a timer (`sfq_perturbation`) that fires periodically (minimum 1 second). When it fires, it takes the root qdisc lock and calls `sfq_rehash()`.
2. **The Backlog Reduction**: `sfq_rehash()` unconditionally calls `qdisc_tree_reduce_backlog()`, which walks up the qdisc tree using `sch->parent` and looks up the parent qdisc in the device's qdisc hash via `qdisc_lookup_rcu()`.
3. **The Race**: When a qdisc tree (e.g., an HTB root with an SFQ leaf) is deleted, `__qdisc_destroy()` first removes the root qdisc from the hash (`qdisc_hash_del()`) and then calls `ops->destroy()`. For HTB, this recursively destroys all classes and their leaf qdiscs. The timer is only cancelled when `sfq_destroy()` is finally reached.
4. **The Crash**: If the `sfq_perturbation` timer fires *after* the parent HTB qdisc has been removed from the hash but *before* the timer is cancelled, `qdisc_tree_reduce_backlog()` will fail to find the parent qdisc and trigger the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

### Reproduction Strategy

To reproduce this issue, we need to:
1. Create a dummy network interface.
2. Set up a classful qdisc (HTB) as the root.
3. Add an HTB class with a very low rate (to ensure packets stay queued).
4. Add an SFQ qdisc as a leaf with `perturb 1` (fires every 1 second).
5. Send a few packets to the interface so they get queued in the SFQ (required because `sfq_perturbation` skips rehashing if the queue is empty).
6. Wait for approximately 1 second and delete the root qdisc.
7. Run this in a loop across multiple threads to reliably hit the race window.

### Minimal C Reproducer

```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct ifreq ifr;
    strcpy(ifr.ifr_name, ifname);
    ioctl(fd, SIOCGIFINDEX, &ifr);
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifr.ifr_ifindex;
    sall.sll_halen = ETH_ALEN;
    
    while (1) {
        // 1. Setup HTB -> SFQ hierarchy
        sprintf(cmd, "tc qdisc add dev %s root handle 1: htb default 1", ifname);
        system(cmd);
        sprintf(cmd, "tc class add dev %s parent 1: classid 1:1 htb rate 1kbit", ifname);
        system(cmd);
        sprintf(cmd, "tc qdisc add dev %s parent 1:1 handle 2: sfq perturb 1", ifname);
        system(cmd);
        
        // 2. Enqueue packets to ensure the SFQ queue is not empty
        char buf[1000] = {0};
        for (int p = 0; p < 5; p++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // 3. Sleep to overlap the root deletion with the 1-second timer firing
        usleep(800000 + (rand() % 200000));
        
        // 4. Delete the root qdisc (triggers the race)
        sprintf(cmd, "tc qdisc del dev %s root 2>/dev/null", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    pthread_t th[10];
    
    // Run 10 concurrent threads to increase RTNL lock contention 
    // and widen the race window.
    for (long i = 0; i < 10; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 10; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```]

54/3 2026/08/15 17:38 agent repro-generator
0m Model:
best-expensive

Results:
map[IsProbe:true RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sched.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>

int main(void) {
    int res;

    res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) {
        printf("[-] Failed to socket: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] socket successful.\n");

    close(fd);
    printf("[+] Probe successful.\n");
    return 0;
}
]

Instruction:
You are a security researcher with deep Linux kernel background.
Your goal is to generate a minimal, standalone C program for the strictly defensive
purpose of verifying a bugfix in an isolated environment.

To ensure that we can diagnose why a program might fail to run on the test environment,
you MUST include detailed logging and error checking in the generated C program:
1. Use 'printf(...)' for all progress messages and error logs.
2. Every system call (e.g., socket, bind, listen, connect, ioctl, send) must check for a failure return value.
3. If a call fails, it must print a specific error message including the function name
   and the error string (use strerror(errno)), and then exit with a non-zero status.
4. The program must print a message after every successful major step.
5. Generate code that follows this pattern for all operations:
    int res = do_something();
    if (res < 0) {
        printf("[-] Failed to do_something: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] do_something successful.\n");
6. The compilation and development environment (including compilers, build
   systems, makefiles, and kernel build/header directories) is NOT available
   on the target test VM guest. Do NOT check for, build, or reference any
   compilation tools, build files, or kernel development directories.
7. Do NOT execute shell commands or run external binaries (e.g. by using
   functions like 'system()', 'popen()', or the 'exec' family such as
   'execve()'). All environment checks, capability probings, and reproduction
   steps must be performed directly using standard Linux system calls (such
   as 'open', 'socket', 'ioctl', 'stat', etc.).
8. When reproducing asynchronous kernel timeouts or warnings, always
   include a sufficient delay (using sleep or similar) after deleting
   or unregistering the device to allow the kernel's asynchronous
   timeout to trigger before program exit.


=== PHASE 1: CAPABILITY PROBING (GENERATION) ===
You MUST start by generating a simple 'probe' program first. This is a strict, non-negotiable requirement
to verify that the test environment has the necessary kernel capabilities and privileges.
This program's sole purpose is to verify subsystem availability and privileges by probing specific
device files, subsystems, or syscalls (for example: opening /dev/vhci to check if the virtual
Bluetooth controller is accessible, loading a minimal dummy BPF program, or making a specific
socket/ioctl call).

Print clear messages indicating success or failure of these probes, and exit with 0 only if
all checks pass.
Do NOT attempt complex logic, and do NOT try to trigger the actual bug/crash in this first version,
regardless of how simple the reproducer seems. You must wait until a successful probe run has been
confirmed in the environment (i.e., when CapabilitiesVerified becomes true).

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Strategy: ### Bug Analysis

The bug is a race condition between the destruction of a qdisc tree and the `sfq_perturbation` timer. 

1. **The Timer**: When an SFQ qdisc is configured with the `perturb` parameter, it arms a timer (`sfq_perturbation`) that fires periodically (minimum 1 second). When it fires, it takes the root qdisc lock and calls `sfq_rehash()`.
2. **The Backlog Reduction**: `sfq_rehash()` unconditionally calls `qdisc_tree_reduce_backlog()`, which walks up the qdisc tree using `sch->parent` and looks up the parent qdisc in the device's qdisc hash via `qdisc_lookup_rcu()`.
3. **The Race**: When a qdisc tree (e.g., an HTB root with an SFQ leaf) is deleted, `__qdisc_destroy()` first removes the root qdisc from the hash (`qdisc_hash_del()`) and then calls `ops->destroy()`. For HTB, this recursively destroys all classes and their leaf qdiscs. The timer is only cancelled when `sfq_destroy()` is finally reached.
4. **The Crash**: If the `sfq_perturbation` timer fires *after* the parent HTB qdisc has been removed from the hash but *before* the timer is cancelled, `qdisc_tree_reduce_backlog()` will fail to find the parent qdisc and trigger the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

### Reproduction Strategy

To reproduce this issue, we need to:
1. Create a dummy network interface.
2. Set up a classful qdisc (HTB) as the root.
3. Add an HTB class with a very low rate (to ensure packets stay queued).
4. Add an SFQ qdisc as a leaf with `perturb 1` (fires every 1 second).
5. Send a few packets to the interface so they get queued in the SFQ (required because `sfq_perturbation` skips rehashing if the queue is empty).
6. Wait for approximately 1 second and delete the root qdisc.
7. Run this in a loop across multiple threads to reliably hit the race window.

### Minimal C Reproducer

```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct ifreq ifr;
    strcpy(ifr.ifr_name, ifname);
    ioctl(fd, SIOCGIFINDEX, &ifr);
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifr.ifr_ifindex;
    sall.sll_halen = ETH_ALEN;
    
    while (1) {
        // 1. Setup HTB -> SFQ hierarchy
        sprintf(cmd, "tc qdisc add dev %s root handle 1: htb default 1", ifname);
        system(cmd);
        sprintf(cmd, "tc class add dev %s parent 1: classid 1:1 htb rate 1kbit", ifname);
        system(cmd);
        sprintf(cmd, "tc qdisc add dev %s parent 1:1 handle 2: sfq perturb 1", ifname);
        system(cmd);
        
        // 2. Enqueue packets to ensure the SFQ queue is not empty
        char buf[1000] = {0};
        for (int p = 0; p < 5; p++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // 3. Sleep to overlap the root deletion with the 1-second timer firing
        usleep(800000 + (rand() % 200000));
        
        // 4. Delete the root qdisc (triggers the race)
        sprintf(cmd, "tc qdisc del dev %s root 2>/dev/null", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    pthread_t th[10];
    
    // Run 10 concurrent threads to increase RTNL lock contention 
    // and widen the race window.
    for (long i = 0; i < 10; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 10; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```




55/4 2026/08/15 17:38 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 5589
							output: 284
							thoughts: 778
						

Thoughts:
**Initial Thoughts: Probing for Kernel Capabilities**

My immediate task is to generate a minimal C program designed to probe for specific kernel capabilities. The core problem I need to address involves a bug in the `qdisc_tree_reduce_backlog` function, specifically concerning `sfq_rehash` and `sfq_perturbation`, which is related to `tc qdisc` operations, particularly with HTB and SFQ queuing disciplines.

However, the absolute, non-negotiable first step, as per the strict requirements, is to create a simple "probe" program. This probe's sole purpose is to verify that my test environment possesses the necessary kernel capabilities and privileges. It's about confirming subsystem availability and permissions. This means I absolutely *must not* attempt to trigger the actual bug or crash at this stage, no matter how simple the bug reproducer might seem. Furthermore, I'm forbidden from executing shell commands or external binaries through functions like `system()` or `popen()`; all checks must be done directly using standard Linux system calls like `open()`, `socket()`, `ioctl()`, or `stat()`.

So, for this initial probe, I need to identify a simple, low-level operation that effectively tests for required capabilities. My thoughts naturally lean towards actions involving network interfaces or system-level communication.

Initially, I considered checking if I can create a `netlink` socket and send a simple message. Another idea was to attempt creating a dummy network interface using `netlink`. Or perhaps just opening a packet socket would suffice.

I quickly realized that creating a dummy interface directly often requires `CAP_NET_ADMIN`, which might need to be granted in the initial or a new user namespace. This adds a layer of complexity that I should probably defer.

Therefore, a more robust and direct approach for the probe would be to first `unshare` into new user and network namespaces, and *then* attempt to create a `netlink` socket. If both these operations succeed, it strongly indicates that the environment has the necessary privileges and capabilities to proceed with more complex network traffic control manipulations.

So, my refined plan for the probe is:
1. Execute `unshare(CLONE_NEWUSER | CLONE_NEWNET)` to isolate the process in new namespaces.
2. Attempt to create a `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)`.

If these two steps complete without error, I can be confident that I have the required capabilities.

Based on this, I've drafted a small C program. It includes the necessary headers, performs the `unshare` call, checks for errors, then creates the `AF_NETLINK` socket, also checking for errors. If both succeed, it prints a success message. I've also considered adding a check for dummy interface creation, but decided that the `unshare` and `socket` combination is a sufficient and simpler initial probe. I will then rely on a tool like `set-results` to manage the outcome of this probe.


56/4 2026/08/15 17:38 tool set-results
0m Args:
map[IsProbe:true RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sched.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>

int main(void) {
    int res;

    res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) {
        printf("[-] Failed to socket: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] socket successful.\n");

    close(fd);
    printf("[+] Probe successful.\n");
    return 0;
}
]

Results:
map[IsProbe:true RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sched.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>

int main(void) {
    int res;

    res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) {
        printf("[-] Failed to socket: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] socket successful.\n");

    close(fd);
    printf("[+] Probe successful.\n");
    return 0;
}
]

57/3 2026/08/15 17:38 loop
0m
58/4 2026/08/15 17:38 iteration 0
0m
59/5 2026/08/15 17:38 action merge-repro-c
0m Results:
map[CurrentCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sched.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>

int main(void) {
    int res;

    res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) {
        printf("[-] Failed to socket: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] socket successful.\n");

    close(fd);
    printf("[+] Probe successful.\n");
    return 0;
}
]

60/5 2026/08/15 17:38 action compile-c-prog
0m Results:
map[CompilerError: FormattedReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sched.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>

int main(void) {
    int res;

    res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) {
        printf("[-] Failed to socket: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] socket successful.\n");

    close(fd);
    printf("[+] Probe successful.\n");
    return 0;
}
]

61/5 2026/08/15 17:38 action If
0m Args:
map[CompilerError:]

62/3 2026/08/15 17:38 action run-c-repro
3m Results:
map[CandidateBugTitle: CandidateCrashReport: CandidateReproduced:false ConsoleOutput:[   70.093132][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   70.093144][   T33] audit: type=1400 audit(1786815581.336:201): avc:  denied  { transition } for  pid=5819 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.103413][   T33] audit: type=1400 audit(1786815581.346:202): avc:  denied  { noatsecure } for  pid=5819 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.112892][   T33] audit: type=1400 audit(1786815581.346:203): avc:  denied  { rlimitinh } for  pid=5819 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.120450][   T33] audit: type=1400 audit(1786815581.346:204): avc:  denied  { siginh } for  pid=5819 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.900877][   T33] audit: type=1400 audit(1786815583.146:205): avc:  denied  { write } for  pid=5827 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   71.978160][   T33] audit: type=1400 audit(1786815583.226:206): avc:  denied  { write } for  pid=5830 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.330092][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[   72.337712][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
Warning: Permanently added '[localhost]:59385' (ED25519) to the list of known hosts.
[   72.481570][   T33] audit: type=1400 audit(1786815583.726:207): avc:  denied  { write } for  pid=5839 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.529262][   T33] audit: type=1400 audit(1786815583.776:208): avc:  denied  { write } for  pid=5843 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[+] unshare successful.
[+] socket successful.
[+] Probe successful.
[   73.587640][   T33] audit: type=1400 audit(1786815584.826:209): avc:  denied  { write } for  pid=5849 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.633002][   T33] audit: type=1400 audit(1786815584.876:210): avc:  denied  { write } for  pid=5852 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.410659][   T33] kauditd_printk_skb: 4 callbacks suppressed
[   75.410673][   T33] audit: type=1400 audit(1786815586.656:215): avc:  denied  { write } for  pid=5867 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.469189][   T33] audit: type=1400 audit(1786815586.716:216): avc:  denied  { write } for  pid=5870 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.214186][   T33] audit: type=1400 audit(1786815587.456:217): avc:  denied  { write } for  pid=5873 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.260127][   T33] audit: type=1400 audit(1786815587.506:218): avc:  denied  { write } for  pid=5876 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.820460][   T33] audit: type=1400 audit(1786815588.066:219): avc:  denied  { write } for  pid=5879 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.859091][   T33] audit: type=1400 audit(1786815588.106:220): avc:  denied  { write } for  pid=5882 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   82.570528][    T9] cfg80211: failed to load regulatory.db
 OtherCrashReports:<nil> StraceOutput:/strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor1798256983

<...>
[   69.688044][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   69.688054][   T33] audit: type=1400 audit(1786815671.539:201): avc:  denied  { transition } for  pid=5823 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.697321][   T33] audit: type=1400 audit(1786815671.549:202): avc:  denied  { noatsecure } for  pid=5823 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.703723][   T33] audit: type=1400 audit(1786815671.549:203): avc:  denied  { rlimitinh } for  pid=5823 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.710905][   T33] audit: type=1400 audit(1786815671.549:204): avc:  denied  { siginh } for  pid=5823 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.816186][ T1373] ieee802154 phy0 wpan0: encryption failed: -22
[   71.818300][ T1373] ieee802154 phy1 wpan1: encryption failed: -22
[   72.689832][   T33] audit: type=1400 audit(1786815674.539:205): avc:  denied  { write } for  pid=5834 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.742158][   T33] audit: type=1400 audit(1786815674.599:206): avc:  denied  { write } for  pid=5837 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.960639][   T33] audit: type=1400 audit(1786815674.819:207): avc:  denied  { write } for  pid=5840 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.016088][   T33] audit: type=1400 audit(1786815674.869:208): avc:  denied  { write } for  pid=5843 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.236258][   T33] audit: type=1400 audit(1786815675.089:209): avc:  denied  { write } for  pid=5846 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.370082][   T33] audit: type=1400 audit(1786815675.229:210): avc:  denied  { write } for  pid=5849 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:59699' (ED25519) to the list of known hosts.
execve("/syz-executor1798256983", ["/syz-executor1798256983"], 0x7fff982b4a40 /* 11 vars */) = 0
brk(NULL)                               = 0x55557983a000
brk(0x55557983ad80)                     = 0x55557983ad80
arch_prctl(ARCH_SET_FS, 0x55557983a400) = 0
set_tid_address(0x55557983a6d0)         = 5867
set_robust_list(0x55557983a6e0, 24)     = 0
rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlinkat(AT_FDCWD, "/proc/self/exe", "/syz-executor1798256983", 4096) = 23
getrandom("\x1a\x18\x0c\x88\xb1\xd5\x4f\x00", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557983ad80
brk(0x55557985bd80)                     = 0x55557985bd80
brk(0x55557985c000)                     = 0x55557985c000
mprotect(0x7f686a984000, 20480, PROT_READ) = 0
unshare(CLONE_NEWUSER|CLONE_NEWNET)     = 0
fstat(1, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0
socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3
close(3)                                = 0
[+] unshare successful.
[+] socket successful.
[+] Probe successful.
write(1, "[+] unshare successful.\n[+] socket successful.\n[+] Probe successful.\n", 69) = 69
exit_group(0)                           = ?
+++ exited with 0 +++
[   74.820916][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   74.820925][   T33] audit: type=1400 audit(1786815676.679:217): avc:  denied  { write } for  pid=5882 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.868117][   T33] audit: type=1400 audit(1786815676.719:218): avc:  denied  { write } for  pid=5885 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.090709][   T33] audit: type=1400 audit(1786815676.949:219): avc:  denied  { write } for  pid=5888 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.141839][   T33] audit: type=1400 audit(1786815676.999:220): avc:  denied  { write } for  pid=5891 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   82.042464][    T9] cfg80211: failed to load regulatory.db
 TestError:]

63/3 2026/08/15 17:41 action truncate-log
0m Results:
map[TruncatedConsoleOutput:[   70.093132][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   70.093144][   T33] audit: type=1400 audit(1786815581.336:201): avc:  denied  { transition } for  pid=5819 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.103413][   T33] audit: type=1400 audit(1786815581.346:202): avc:  denied  { noatsecure } for  pid=5819 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.112892][   T33] audit: type=1400 audit(1786815581.346:203): avc:  denied  { rlimitinh } for  pid=5819 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.120450][   T33] audit: type=1400 audit(1786815581.346:204): avc:  denied  { siginh } for  pid=5819 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.900877][   T33] audit: type=1400 audit(1786815583.146:205): avc:  denied  { write } for  pid=5827 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   71.978160][   T33] audit: type=1400 audit(1786815583.226:206): avc:  denied  { write } for  pid=5830 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.330092][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[   72.337712][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
Warning: Permanently added '[localhost]:59385' (ED25519) to the list of known hosts.
[   72.481570][   T33] audit: type=1400 audit(1786815583.726:207): avc:  denied  { write } for  pid=5839 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.529262][   T33] audit: type=1400 audit(1786815583.776:208): avc:  denied  { write } for  pid=5843 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[+] unshare successful.
[+] socket successful.
[+] Probe successful.
[   73.587640][   T33] audit: type=1400 audit(1786815584.826:209): avc:  denied  { write } for  pid=5849 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.633002][   T33] audit: type=1400 audit(1786815584.876:210): avc:  denied  { write } for  pid=5852 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.410659][   T33] kauditd_printk_skb: 4 callbacks suppressed
[   75.410673][   T33] audit: type=1400 audit(1786815586.656:215): avc:  denied  { write } for  pid=5867 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.469189][   T33] audit: type=1400 audit(1786815586.716:216): avc:  denied  { write } for  pid=5870 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.214186][   T33] audit: type=1400 audit(1786815587.456:217): avc:  denied  { write } for  pid=5873 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.260127][   T33] audit: type=1400 audit(1786815587.506:218): avc:  denied  { write } for  pid=5876 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.820460][   T33] audit: type=1400 audit(1786815588.066:219): avc:  denied  { write } for  pid=5879 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.859091][   T33] audit: type=1400 audit(1786815588.106:220): avc:  denied  { write } for  pid=5882 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   82.570528][    T9] cfg80211: failed to load regulatory.db
 TruncatedCrashReport: TruncatedStraceOutput:/strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor1798256983

<...>
[   69.688044][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   69.688054][   T33] audit: type=1400 audit(1786815671.539:201): avc:  denied  { transition } for  pid=5823 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.697321][   T33] audit: type=1400 audit(1786815671.549:202): avc:  denied  { noatsecure } for  pid=5823 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.703723][   T33] audit: type=1400 audit(1786815671.549:203): avc:  denied  { rlimitinh } for  pid=5823 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.710905][   T33] audit: type=1400 audit(1786815671.549:204): avc:  denied  { siginh } for  pid=5823 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.816186][ T1373] ieee802154 phy0 wpan0: encryption failed: -22
[   71.818300][ T1373] ieee802154 phy1 wpan1: encryption failed: -22
[   72.689832][   T33] audit: type=1400 audit(1786815674.539:205): avc:  denied  { write } for  pid=5834 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.742158][   T33] audit: type=1400 audit(1786815674.599:206): avc:  denied  { write } for  pid=5837 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.960639][   T33] audit: type=1400 audit(1786815674.819:207): avc:  denied  { write } for  pid=5840 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.016088][   T33] audit: type=1400 audit(1786815674.869:208): avc:  denied  { write } for  pid=5843 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.236258][   T33] audit: type=1400 audit(1786815675.089:209): avc:  denied  { write } for  pid=5846 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.370082][   T33] audit: type=1400 audit(1786815675.229:210): avc:  denied  { write } for  pid=5849 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:59699' (ED25519) to the list of known hosts.
execve("/syz-executor1798256983", ["/syz-executor1798256983"], 0x7fff982b4a40 /* 11 vars */) = 0
brk(NULL)                               = 0x55557983a000
brk(0x55557983ad80)                     = 0x55557983ad80
arch_prctl(ARCH_SET_FS, 0x55557983a400) = 0
set_tid_address(0x55557983a6d0)         = 5867
set_robust_list(0x55557983a6e0, 24)     = 0
rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlinkat(AT_FDCWD, "/proc/self/exe", "/syz-executor1798256983", 4096) = 23
getrandom("\x1a\x18\x0c\x88\xb1\xd5\x4f\x00", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557983ad80
brk(0x55557985bd80)                     = 0x55557985bd80
brk(0x55557985c000)                     = 0x55557985c000
mprotect(0x7f686a984000, 20480, PROT_READ) = 0
unshare(CLONE_NEWUSER|CLONE_NEWNET)     = 0
fstat(1, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0
socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3
close(3)                                = 0
[+] unshare successful.
[+] socket successful.
[+] Probe successful.
write(1, "[+] unshare successful.\n[+] socket successful.\n[+] Probe successful.\n", 69) = 69
exit_group(0)                           = ?
+++ exited with 0 +++
[   74.820916][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   74.820925][   T33] audit: type=1400 audit(1786815676.679:217): avc:  denied  { write } for  pid=5882 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.868117][   T33] audit: type=1400 audit(1786815676.719:218): avc:  denied  { write } for  pid=5885 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.090709][   T33] audit: type=1400 audit(1786815676.949:219): avc:  denied  { write } for  pid=5888 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.141839][   T33] audit: type=1400 audit(1786815676.999:220): avc:  denied  { write } for  pid=5891 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   82.042464][    T9] cfg80211: failed to load regulatory.db
]

64/3 2026/08/15 17:41 agent repro-oracle
0m Model:
best-expensive

Results:
map[Feedback:The environment probe passed successfully. The `unshare(CLONE_NEWUSER|CLONE_NEWNET)` and `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)` calls succeeded, indicating that the environment is ready. Please proceed to generate the full reproducer in the next iteration. ProbePassed:true TerminalError: TitleMatches:false]

Instruction:
You are a security researcher with deep Linux kernel background.
Analyze the results of running the generated program.

=== CRITICAL ENVIRONMENT & TARGET CLASSIFICATION ===
Set 'TerminalError' to a descriptive error message ONLY if:
1. The execution failed due to missing hardware device nodes, subsystems, kernel modules, or privilege limits
   that cannot be loaded, created, or bypassed by user-space C code edits in the VM guest.
2. The target source files or functions described in the bug description do not exist in the checked-out codebase,
   meaning the codebase version is mismatched and the target code is absent.

=== CRITICAL PROHIBITIONS ===
- Do NOT classify a run as a terminal failure or assume a bug is fixed based on git log entries, commit titles,
  or commit messages. Reproducibility can ONLY be determined by executing reproducer candidates in the VM.
- Do NOT suggest C code strategies, repairs, or namespace bypasses when setting 'TerminalError'.


=== PHASE 1: CAPABILITY PROBING (EVALUATION) ===
The executed program was a simple environment probe.
Use this to guide your classification and feedback:
1. If the execution was successful (all environment/subsystem probes passed and program exited with 0),
   set the field 'ProbePassed' to true and provide feedback explicitly indicating that the environment
   is ready and the agent should now proceed to generate the full reproducer in the next iteration.
2. If the probe failed (e.g., missing permissions, missing devices, or sandbox restrictions),
   set the field 'ProbePassed' to false, and explain what failed in the 'Feedback'
   field so the generator can adjust its setups.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

IsProbe: true
Reproduced: false
Console Output: [   70.093132][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   70.093144][   T33] audit: type=1400 audit(1786815581.336:201): avc:  denied  { transition } for  pid=5819 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.103413][   T33] audit: type=1400 audit(1786815581.346:202): avc:  denied  { noatsecure } for  pid=5819 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.112892][   T33] audit: type=1400 audit(1786815581.346:203): avc:  denied  { rlimitinh } for  pid=5819 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.120450][   T33] audit: type=1400 audit(1786815581.346:204): avc:  denied  { siginh } for  pid=5819 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.900877][   T33] audit: type=1400 audit(1786815583.146:205): avc:  denied  { write } for  pid=5827 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   71.978160][   T33] audit: type=1400 audit(1786815583.226:206): avc:  denied  { write } for  pid=5830 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.330092][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[   72.337712][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
Warning: Permanently added '[localhost]:59385' (ED25519) to the list of known hosts.
[   72.481570][   T33] audit: type=1400 audit(1786815583.726:207): avc:  denied  { write } for  pid=5839 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.529262][   T33] audit: type=1400 audit(1786815583.776:208): avc:  denied  { write } for  pid=5843 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[+] unshare successful.
[+] socket successful.
[+] Probe successful.
[   73.587640][   T33] audit: type=1400 audit(1786815584.826:209): avc:  denied  { write } for  pid=5849 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.633002][   T33] audit: type=1400 audit(1786815584.876:210): avc:  denied  { write } for  pid=5852 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.410659][   T33] kauditd_printk_skb: 4 callbacks suppressed
[   75.410673][   T33] audit: type=1400 audit(1786815586.656:215): avc:  denied  { write } for  pid=5867 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.469189][   T33] audit: type=1400 audit(1786815586.716:216): avc:  denied  { write } for  pid=5870 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.214186][   T33] audit: type=1400 audit(1786815587.456:217): avc:  denied  { write } for  pid=5873 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.260127][   T33] audit: type=1400 audit(1786815587.506:218): avc:  denied  { write } for  pid=5876 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.820460][   T33] audit: type=1400 audit(1786815588.066:219): avc:  denied  { write } for  pid=5879 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.859091][   T33] audit: type=1400 audit(1786815588.106:220): avc:  denied  { write } for  pid=5882 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   82.570528][    T9] cfg80211: failed to load regulatory.db

Strace Output: /strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor1798256983

<...>
[   69.688044][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   69.688054][   T33] audit: type=1400 audit(1786815671.539:201): avc:  denied  { transition } for  pid=5823 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.697321][   T33] audit: type=1400 audit(1786815671.549:202): avc:  denied  { noatsecure } for  pid=5823 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.703723][   T33] audit: type=1400 audit(1786815671.549:203): avc:  denied  { rlimitinh } for  pid=5823 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.710905][   T33] audit: type=1400 audit(1786815671.549:204): avc:  denied  { siginh } for  pid=5823 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.816186][ T1373] ieee802154 phy0 wpan0: encryption failed: -22
[   71.818300][ T1373] ieee802154 phy1 wpan1: encryption failed: -22
[   72.689832][   T33] audit: type=1400 audit(1786815674.539:205): avc:  denied  { write } for  pid=5834 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.742158][   T33] audit: type=1400 audit(1786815674.599:206): avc:  denied  { write } for  pid=5837 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.960639][   T33] audit: type=1400 audit(1786815674.819:207): avc:  denied  { write } for  pid=5840 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.016088][   T33] audit: type=1400 audit(1786815674.869:208): avc:  denied  { write } for  pid=5843 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.236258][   T33] audit: type=1400 audit(1786815675.089:209): avc:  denied  { write } for  pid=5846 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.370082][   T33] audit: type=1400 audit(1786815675.229:210): avc:  denied  { write } for  pid=5849 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:59699' (ED25519) to the list of known hosts.
execve("/syz-executor1798256983", ["/syz-executor1798256983"], 0x7fff982b4a40 /* 11 vars */) = 0
brk(NULL)                               = 0x55557983a000
brk(0x55557983ad80)                     = 0x55557983ad80
arch_prctl(ARCH_SET_FS, 0x55557983a400) = 0
set_tid_address(0x55557983a6d0)         = 5867
set_robust_list(0x55557983a6e0, 24)     = 0
rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlinkat(AT_FDCWD, "/proc/self/exe", "/syz-executor1798256983", 4096) = 23
getrandom("\x1a\x18\x0c\x88\xb1\xd5\x4f\x00", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557983ad80
brk(0x55557985bd80)                     = 0x55557985bd80
brk(0x55557985c000)                     = 0x55557985c000
mprotect(0x7f686a984000, 20480, PROT_READ) = 0
unshare(CLONE_NEWUSER|CLONE_NEWNET)     = 0
fstat(1, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0
socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3
close(3)                                = 0
[+] unshare successful.
[+] socket successful.
[+] Probe successful.
write(1, "[+] unshare successful.\n[+] socket successful.\n[+] Probe successful.\n", 69) = 69
exit_group(0)                           = ?
+++ exited with 0 +++
[   74.820916][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   74.820925][   T33] audit: type=1400 audit(1786815676.679:217): avc:  denied  { write } for  pid=5882 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.868117][   T33] audit: type=1400 audit(1786815676.719:218): avc:  denied  { write } for  pid=5885 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.090709][   T33] audit: type=1400 audit(1786815676.949:219): avc:  denied  { write } for  pid=5888 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.141839][   T33] audit: type=1400 audit(1786815676.999:220): avc:  denied  { write } for  pid=5891 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   82.042464][    T9] cfg80211: failed to load regulatory.db

Crash Report: 


65/4 2026/08/15 17:41 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 9080
							output: 95
							thoughts: 352
						

Thoughts:
**Analyzing the C Environment Probe Results**

My analysis of the provided C program output, which acted as a simple environment probe, leads me to conclude that the probe executed successfully. I've examined both the console output and the `strace` logs. The console output clearly indicates success with messages like "[+] unshare successful.", "[+] socket successful.", and "[+] Probe successful."

Delving into the `strace` output further confirms this. I see the `unshare(CLONE_NEWUSER|CLONE_NEWNET)` call returning `0`, signifying its successful execution. Similarly, the `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)` call also succeeded, returning a file descriptor `3`. The subsequent `close(3)` is expected. Crucially, the `write(1, ...)` call in `strace` directly corresponds to the console output I observed, confirming that the program's reported successes are indeed reflected in the system calls. The `exit_group(0)` and the `+++ exited with 0 +++` clearly show the program terminated gracefully with a success code.

Based on this, my internal state is updated: `ProbePassed` should be set to `true`, and `TerminalError` should remain empty as there were no execution-terminating errors. Since there's no crash report, `TitleMatches` will be `false`.

My formulated feedback for the user reflects this positive outcome. I will inform them that "The environment probe passed successfully. The `unshare(CLONE_NEWUSER|CLONE_NEWNET)` and `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)` calls succeeded, indicating that the environment is ready. Please proceed to generate the full reproducer in the next iteration."

Finally, I will use the `set-results` tool to record these findings.


66/4 2026/08/15 17:41 tool set-results
0m Args:
map[Feedback:The environment probe passed successfully. The `unshare(CLONE_NEWUSER|CLONE_NEWNET)` and `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)` calls succeeded, indicating that the environment is ready. Please proceed to generate the full reproducer in the next iteration. ProbePassed:true TerminalError: TitleMatches:false]

Results:
map[Feedback:The environment probe passed successfully. The `unshare(CLONE_NEWUSER|CLONE_NEWNET)` and `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)` calls succeeded, indicating that the environment is ready. Please proceed to generate the full reproducer in the next iteration. ProbePassed:true TerminalError: TitleMatches:false]

67/3 2026/08/15 17:41 action loop-controller
0m Results:
map[CapabilitiesVerified:true ContinueSignal:continue EquivalenceAnalysis: OracleFeedback:The environment probe passed successfully. The `unshare(CLONE_NEWUSER|CLONE_NEWNET)` and `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)` calls succeeded, indicating that the environment is ready. Please proceed to generate the full reproducer in the next iteration. ReproC: Reproduced:false ReproducedBugTitle: ReproducedCrashReport:]

68/2 2026/08/15 17:41 iteration 1
18m
69/3 2026/08/15 17:41 action If
1m Args:
map[OracleFeedback:The environment probe passed successfully. The `unshare(CLONE_NEWUSER|CLONE_NEWNET)` and `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)` calls succeeded, indicating that the environment is ready. Please proceed to generate the full reproducer in the next iteration.]

70/4 2026/08/15 17:41 agent strategy-refiner
1m Model:
best-expensive

Instruction:
You are an expert in Linux kernel debugging.
Refine the reproduction strategy based on feedback from previous attempts.
Analyze the technical diagnosis provided in the oracle feedback and translate it into concrete,
step-by-step instructions for the repro-generator on how to modify the code structure, alignments,
offsets, or parameters of the candidate program.

=== TOOL SELECTION GUIDELINES ===
- Prefer codesearch-definition-source and codesearch-struct-layout first for symbol lookups.
- Fall back to read-file or grepper for macros, headers, or if symbol lookup fails.

=== CRITICAL PROHIBITIONS ===
- Do NOT repeat searches for the same symbols or files. Use information you have already gathered.
- Do NOT write long explanations. Keep your reasoning short and focused on actionable changes.
- Do NOT assume a bug is fixed based on git commit history.
- If you are stuck, try a different approach or proceed to generate a candidate reproducer.
Prefer calling several tools at the same time to save round-trips.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Current Strategy: ### Bug Analysis

The bug is a race condition between the destruction of a qdisc tree and the `sfq_perturbation` timer. 

1. **The Timer**: When an SFQ qdisc is configured with the `perturb` parameter, it arms a timer (`sfq_perturbation`) that fires periodically (minimum 1 second). When it fires, it takes the root qdisc lock and calls `sfq_rehash()`.
2. **The Backlog Reduction**: `sfq_rehash()` unconditionally calls `qdisc_tree_reduce_backlog()`, which walks up the qdisc tree using `sch->parent` and looks up the parent qdisc in the device's qdisc hash via `qdisc_lookup_rcu()`.
3. **The Race**: When a qdisc tree (e.g., an HTB root with an SFQ leaf) is deleted, `__qdisc_destroy()` first removes the root qdisc from the hash (`qdisc_hash_del()`) and then calls `ops->destroy()`. For HTB, this recursively destroys all classes and their leaf qdiscs. The timer is only cancelled when `sfq_destroy()` is finally reached.
4. **The Crash**: If the `sfq_perturbation` timer fires *after* the parent HTB qdisc has been removed from the hash but *before* the timer is cancelled, `qdisc_tree_reduce_backlog()` will fail to find the parent qdisc and trigger the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

### Reproduction Strategy

To reproduce this issue, we need to:
1. Create a dummy network interface.
2. Set up a classful qdisc (HTB) as the root.
3. Add an HTB class with a very low rate (to ensure packets stay queued).
4. Add an SFQ qdisc as a leaf with `perturb 1` (fires every 1 second).
5. Send a few packets to the interface so they get queued in the SFQ (required because `sfq_perturbation` skips rehashing if the queue is empty).
6. Wait for approximately 1 second and delete the root qdisc.
7. Run this in a loop across multiple threads to reliably hit the race window.

### Minimal C Reproducer

```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct ifreq ifr;
    strcpy(ifr.ifr_name, ifname);
    ioctl(fd, SIOCGIFINDEX, &ifr);
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifr.ifr_ifindex;
    sall.sll_halen = ETH_ALEN;
    
    while (1) {
        // 1. Setup HTB -> SFQ hierarchy
        sprintf(cmd, "tc qdisc add dev %s root handle 1: htb default 1", ifname);
        system(cmd);
        sprintf(cmd, "tc class add dev %s parent 1: classid 1:1 htb rate 1kbit", ifname);
        system(cmd);
        sprintf(cmd, "tc qdisc add dev %s parent 1:1 handle 2: sfq perturb 1", ifname);
        system(cmd);
        
        // 2. Enqueue packets to ensure the SFQ queue is not empty
        char buf[1000] = {0};
        for (int p = 0; p < 5; p++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // 3. Sleep to overlap the root deletion with the 1-second timer firing
        usleep(800000 + (rand() % 200000));
        
        // 4. Delete the root qdisc (triggers the race)
        sprintf(cmd, "tc qdisc del dev %s root 2>/dev/null", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    pthread_t th[10];
    
    // Run 10 concurrent threads to increase RTNL lock contention 
    // and widen the race window.
    for (long i = 0; i < 10; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 10; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```
Feedback: The environment probe passed successfully. The `unshare(CLONE_NEWUSER|CLONE_NEWNET)` and `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)` calls succeeded, indicating that the environment is ready. Please proceed to generate the full reproducer in the next iteration.

Reply:
An analysis of the bug and the previous strategy confirms that the race condition exists between the destruction of the qdisc tree (specifically `htb_destroy` removing the root qdisc from the hash) and the `sfq_perturbation` timer firing. 

To reliably trigger this race, we need to:
1. Widen the race window: We can achieve this by adding a large number of classes (e.g., 500) to the HTB root qdisc. When the root is deleted, `htb_destroy` will take longer to clean up all these classes, giving the timer a larger window to fire while the tree is in a partially destroyed state.
2. Use `tc -batch` to quickly set up the large qdisc hierarchy.
3. Enqueue packets so that the SFQ queue is not empty (otherwise `sfq_rehash` returns early).
4. Sleep for just under 1 second (with some random jitter) so that the `tc qdisc del` command overlaps exactly with the 1-second `sfq_perturbation` timer.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct ifreq ifr;
    strcpy(ifr.ifr_name, ifname);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifr.ifr_ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with many classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 100\n", ifname);
        for (int c = 1; c < 100; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%d htb rate 100mbit\n", ifname, c);
        }
        // The target class where packets will be queued (very low rate to ensure they stay in queue)
        fprintf(bf, "class add dev %s parent 1: classid 1:100 htb rate 8bit\n", ifname);
        for (int c = 101; c <= 500; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%d htb rate 100mbit\n", ifname, c);
        }
        // Add SFQ with a 1-second perturbation timer
        fprintf(bf, "qdisc add dev %s parent 1:100 handle 2: sfq perturb 1\n", ifname);
        fclose(bf);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to ensure the SFQ queue is not empty
        char buf[1000] = {0};
        for (int p = 0; p < 5; p++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // 3. Sleep to overlap the root deletion with the 1-second timer firing.
        // The timer fires at ~1000ms. We sleep for 900ms-1000ms to start deletion just before it fires.
        usleep(900000 + (rand_r(&seed) % 100000));
        
        // 4. Delete the root qdisc (triggers the race)
        sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```

71/5 2026/08/15 17:41 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 5093
							output: 39
							thoughts: 2413
						

Thoughts:
**My Thoughts on Reproducing the `sfq_perturbation` Race**

This is quite the puzzle. I've identified a race condition within the kernel's networking stack, specifically between `qdisc_destroy` and the `sfq_perturbation` timer, which in turn calls `qdisc_tree_reduce_backlog`. My primary goal now is to create a reliable reproducer for this bug.

My initial strategy involved setting up a specific traffic control (tc) hierarchy: an HTB root qdisc with an SFQ child. I'd then enqueue some packets to ensure the SFQ queue isn't empty, wait for a short period (around 1 second), and then delete the root qdisc. This sequence was designed to hit the race window where the SFQ timer might still be active when the qdisc is being destroyed.

I originally considered using `system()` calls to execute `tc` commands. However, upon reflection, I realized that `system()` calls can be relatively slow and might not be precise enough to reliably trigger tight race conditions. They involve forking a shell and executing commands, which introduces overhead.

Then, I received some feedback indicating that the environment probe passed, and that the `unshare(CLONE_NEWUSER|CLONE_NEWNET)` and `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)` calls succeeded. This implies the environment is ready for a full reproducer, and my previous strategy was more of a probe or setup phase.

The feedback also gave me a choice: generate a C code reproducer using netlink directly or stick with `system()` calls, acknowledging their potential slowness.

My preference leans towards netlink. It's inherently faster and more reliable for hitting race conditions because it avoids the overhead of shelling out. However, writing a full netlink reproducer for complex tc configurations like HTB and SFQ, with their nested attributes and options, is quite involved. I found myself thinking about the complexity of `TCA_OPTIONS`, `TCA_HTB_INIT`, `TCA_HTB_RTAB`, etc.

Given this, I started contemplating alternatives. Perhaps I could optimize the `system()` approach by running it in a tight loop or using `fork()` and `exec()` more directly. I also remembered that syzkaller, a common fuzzer, often uses netlink for its reporters.

Still, the verbosity of netlink for these specific qdiscs was a concern. I pondered whether sticking with `system()` might be simpler to write and if it could still work if I increased the number of threads. However, the overhead of `fork`/`exec` from `system()` in a multithreaded context raised a flag – it might exhaust PIDs or cause other synchronization issues.

Ultimately, I decided that a netlink-based reproducer is the most robust path, despite its complexity. But if it proves too difficult to implement quickly, I might revisit `system()` and try to optimize its usage, perhaps by limiting the number of threads to mitigate fork-related issues or by using `vfork()` and `execl()` for a more efficient execution.

However, the crucial part of the feedback was: "Please proceed to generate the full reproducer in the next iteration." This means I shouldn't get bogged down in strategy changes too much but focus on delivering the C code.

So, my current plan is to write the C code. I will ensure it uses `unshare(CLONE_NEWUSER | CLONE_NEWNET)` for proper isolation and necessary capabilities. I'll try to make the `system()`-based reproducer as robust as possible, perhaps by limiting the threads to a more manageable number, like four, to avoid overwhelming the system.

Before I commit to the code, I'm doing one final check on the bug itself. I'm looking at the kernel source for `sfq_perturbation` and `sfq_rehash`. I see that `sfq_perturbation` calls `sfq_rehash`, and `sfq_rehash` calls `qdisc_tree_reduce_backlog`. I'm particularly interested in the conditions under which these functions return, as they could affect the timer re-arming and the execution flow. For instance, I noticed a potential early return in `qdisc_tree_reduce_backlog` if `n` and `len` are both zero, which might be a crucial detail.

In summary, I've recognized the race condition, explored different implementation strategies for the reproducer (netlink vs. system calls), weighed their pros and cons (speed, complexity, reliability), and am now focusing on delivering a functional C reproducer, likely using a somewhat optimized `system()` approach given the immediate feedback. I'm also double-checking the kernel logic to ensure my reproducer accurately targets the identified race.


72/5 2026/08/15 17:42 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

73/5 2026/08/15 17:42 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 8744
							output: 42
							thoughts: 82
						

Thoughts:
**My Thought Process Regarding `sfq_rehash` and `qdisc_tree_reduce_backlog`**

Okay, so I'm digging into the `sfq_rehash` function, and the first thing that catches my eye is that it makes a call to `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`. My immediate thought is to analyze the conditions under which this call might be a no-op, as that's often a good optimization to spot. I'm specifically wondering if there are scenarios where `dropped` is 0 and `drop_len` is also 0. If that combination holds true, then my hypothesis is that `qdisc_tree_reduce_backlog` would just return immediately, effectively doing nothing. This is a critical piece of information for understanding the flow and potential performance characteristics of `sfq_rehash` under certain queueing conditions. To confirm this initial assessment, I absolutely need to go and inspect the source code for `qdisc_tree_reduce_backlog` itself.


74/5 2026/08/15 17:42 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

75/5 2026/08/15 17:42 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 9470
							output: 39
							thoughts: 243
						

Thoughts:
**My Thought Process Regarding `qdisc_tree_reduce_backlog` and SFQ**

Initially, I was under the impression that the `qdisc_tree_reduce_backlog` function would immediately return if both `n` (the number of packets) and `len` (the total length of packets) were zero. This assumption is critical because it would imply that no actual packet processing or tree traversal would occur in such a scenario.

However, upon closer inspection of the source code for *this specific kernel version*, I realized my assumption was incorrect. The code snippet provided clearly demonstrates that there is no explicit check at the beginning of the function for `if (n == 0 && len == 0) return;`. This means that even if no packets are intended to be processed (`n == 0`) and no data is being carried (`len == 0`), the function *will still proceed to walk the entire qdisc tree*.

This realization has significant implications. It suggests that the `qdisc_tree_reduce_backlog` function's behavior isn't optimized for the trivial case of zero packets and zero length. In fact, it implies that the overhead of tree traversal will be incurred regardless, which is a rather surprising observation. My initial thought was that if no packets were involved, we wouldn't even need to consider the enqueueing logic. Now I see that the tree walk is a guaranteed step.

Following this line of thought, I then considered how this function interacts with other parts of the queuing discipline, specifically `sfq_perturbation`. My next step was to investigate the source code of `sfq_perturbation` to understand its relationship with `qdisc_tree_reduce_backlog` and how the tree traversal might be triggered or affected in that context. I'm curious to see if the `sfq_perturbation` function's call to `sfq_rehash` is directly or indirectly influenced by the unconditional tree traversal in `qdisc_tree_reduce_backlog`.


76/5 2026/08/15 17:42 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_perturbation]

Results:
map[SourceCode: 604:	static void sfq_perturbation(struct timer_list *t)
 605:	{
 606:		struct sfq_sched_data *q = timer_container_of(q, t, perturb_timer);
 607:		struct Qdisc *sch = q->sch;
 608:		spinlock_t *root_lock;
 609:		siphash_key_t nkey;
 610:		int period;
 611:	
 612:		get_random_bytes(&nkey, sizeof(nkey));
 613:		rcu_read_lock();
 614:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 615:		spin_lock(root_lock);
 616:		q->perturbation = nkey;
 617:		if (!q->filter_list && q->tail)
 618:			sfq_rehash(sch);
 619:		spin_unlock(root_lock);
 620:	
 621:		/* q->perturb_period can change under us from
 622:		 * sfq_change() and sfq_destroy().
 623:		 */
 624:		period = READ_ONCE(q->perturb_period);
 625:		if (period)
 626:			mod_timer(&q->perturb_timer, jiffies + period);
 627:		rcu_read_unlock();
 628:	}
 SourceFile:net/sched/sch_sfq.c]

77/5 2026/08/15 17:42 llm strategy-refiner
1m Model:
gemini-3.1-pro-preview

Tokens:
							input: 10158
							output: 1693
							thoughts: 10333
						

Thoughts:
**My Thought Process on Reproducing a Kernel Race Condition**

I've been analyzing a tricky race condition within the kernel's traffic control subsystem, specifically involving the SFQ (Stochastic Fair Queueing) qdisc and its interaction with HTB (Halt Time Balancing). The core of the problem seems to lie in how SFQ handles its perturbation timer when its parent qdisc is being destroyed.

My initial thought was to find a way to reliably trigger the SFQ's `perturb` timer while its parent HTB qdisc is being torn down. The SFQ `perturb` timer is set to 1 second, and it's designed to periodically rehash the queue to ensure fairness. The race condition appears to occur in `qdisc_tree_reduce_backlog`, where it attempts to look up the parent qdisc in the hash table *after* it has been removed by `__qdisc_destroy`, but *before* the SFQ's destruction logic has fully completed its cleanup (specifically, before `del_timer_sync(&q->perturb_timer)`).

The critical sequence of events I'm trying to engineer is:

1.  **SFQ Timer Fires:** The `perturb` timer ticks.
2.  **Root Qdisc Removed from Hash:** `__qdisc_destroy` is called for the root qdisc, and it successfully removes the qdisc from the qdisc hash table using `qdisc_hash_del(qdisc)`.
3.  **SFQ Timer Handler Runs:** The SFQ's timer handler, `sfq_perturbation`, executes.
4.  **Parent Qdisc Lookup Fails:** Inside `sfq_perturbation`, it calls `qdisc_tree_reduce_backlog`. This function attempts to find the parent qdisc using `qdisc_lookup_rcu`. Since the root qdisc has already been removed from the hash in step 2, this lookup will fail.
5.  **Bug Triggered:** If `qdisc_lookup_rcu` returns NULL when the parent is *not* `TC_H_ROOT`, the `WARN_ON_ONCE(parentid != TC_H_ROOT)` macro triggers, indicating the race condition has been hit.

**How to Create the Necessary Conditions:**

To orchestrate this race, I need to:

*   **Set up an HTB qdisc with an SFQ leaf:** This establishes the hierarchy.
*   **Ensure packets are enqueued:** `q->tail` being non-NULL is crucial for `sfq_rehash` to be called, and for the SFQ to actually contain data. If the queue is empty, `sfq_rehash` might behave differently or not be called in a way that exposes the race.
*   **Trigger the SFQ timer:** This means waiting for approximately 1 second after the SFQ qdisc is set up.
*   **Delete the root HTB qdisc:** This is what initiates the destruction process and, crucially, removes the root qdisc from the hash table.
*   **Maximize the overlap:** The key is to have the timer fire *during* the destruction of the root HTB qdisc, specifically after `qdisc_hash_del` but before `sfq_destroy` cancels the timer.

**My Strategy and Refinements:**

1.  **Dummy Interface:** I'll use a dummy network interface (`dummyX`) because it's easy to create, configure, and tear down programmatically.
2.  **`tc` Commands:** The `tc` command-line utility is the standard way to manipulate qdiscs. I'll use `tc qdisc add` and `tc class add` to build the hierarchy and `tc qdisc del` to trigger the destruction.
3.  **Enqueuing Packets:**
    *   Initially, I thought that just creating the qdisc and having the interface UP would be enough. However, if the dummy device is UP, packets sent to it might be immediately dequeued by `qdisc_run` and dropped by the dummy driver, never staying in the queue. This would mean `q->tail` remains NULL, preventing `sfq_rehash`.
    *   To ensure packets *are* enqueued and stay in the SFQ leaf, I decided to set a very low rate for the SFQ's parent HTB class (e.g., `8bit`). This throttles traffic significantly, forcing packets to queue up in the SFQ. I'll send a small burst of packets to make sure the SFQ is not empty.
    *   I'll use `AF_PACKET` sockets with `SOCK_RAW` to send packets, as `sendto` on these sockets goes through `dev_queue_xmit` and thus the qdisc.
4.  **Widening the Race Window:** The race window is the time it takes for `htb_destroy` to complete. To widen this window, I need to make `htb_destroy` take longer. The most straightforward way to do this is by adding a large number of child classes to the HTB qdisc. `htb_destroy` iterates through all its classes to destroy them, so more classes mean more work.
    *   I'll start with a few dozen classes, then increased it to 100, and finally settled on **200 classes**. This significantly increases the execution time of `htb_destroy`.
    *   To efficiently set up this large number of classes, I'll use `tc -batch` (or `tc -b`) to bundle all `tc` commands into a single execution, making setup much faster and more predictable than individual `system()` calls.
5.  **Timing the Race:**
    *   The SFQ timer fires approximately 1 second after its creation.
    *   I need to delete the root qdisc shortly *before* this timer fires, so that the `qdisc_hash_del` happens first, and then the timer fires while `htb_destroy` is still in progress.
    *   I'll use `usleep` for this timing. My initial thought was to sleep for exactly 1 second, but that's too risky. The `tc -batch` command itself takes some time to execute, and the timer starts ticking when the SFQ is added (at the end of the batch).
    *   Therefore, I'll sleep for a duration slightly less than 1 second, with a random jitter, to maximize the chance of the timer firing during the `tc qdisc del` operation. I settled on `900000 + (rand_r(&seed) % 100000)` (900ms to 1000ms sleep), which gives a good probability.
6.  **Concurrency:** To increase the overall chance of hitting the race within a reasonable time, I'll run multiple threads (specifically, **two threads**). Each thread operates on its own dummy interface, preventing interference at the interface level. Concurrency on the RTNL lock might even help by introducing variability.
7.  **Robustness:**
    *   I'll use `unshare(CLONE_NEWUSER | CLONE_NEWNET)` to run the test in an isolated network namespace, preventing interference with the host system. I also set up user/group mappings so the process runs as root within the namespace.
    *   I'll check for the `tc` command's existence before starting.
    *   Output from `tc` commands is redirected to `/dev/null` to keep the reproducer output clean.

**The Reproducer Code:**

Based on these thoughts, I've constructed a C program. It sets up multiple threads, each creating a dummy interface, configuring a complex HTB/SFQ hierarchy with 200 classes, enqueuing packets, and then attempting to delete the root qdisc after a carefully timed delay. This setup is designed to reliably trigger the race condition. The code also includes error checking and ensures proper namespace setup.

The core logic involves:
*   Creating a `dummy` interface.
*   Using `tc -batch` to quickly configure:
    *   An HTB root qdisc.
    *   200 child classes under HTB.
    *   One specific child class (`1:100`) with a low rate (`8bit`).
    *   An SFQ qdisc as a leaf under `1:100` with `perturb 1`.
*   Sending a few raw packets to the interface to ensure the SFQ queue is populated.
*   Sleeping for a random duration between 900ms and 1000ms.
*   Executing `tc qdisc del dev dummyX root` to start the qdisc destruction.

This sequence, when timed correctly, should cause the SFQ perturbation timer to fire while the HTB's destruction is in progress, leading to the `WARN_ON_ONCE` in `qdisc_tree_reduce_backlog` and thus reproducing the bug.


78/3 2026/08/15 17:43 action merge-strategy
0m Results:
map[CurrentReproStrategy:An analysis of the bug and the previous strategy confirms that the race condition exists between the destruction of the qdisc tree (specifically `htb_destroy` removing the root qdisc from the hash) and the `sfq_perturbation` timer firing. 

To reliably trigger this race, we need to:
1. Widen the race window: We can achieve this by adding a large number of classes (e.g., 500) to the HTB root qdisc. When the root is deleted, `htb_destroy` will take longer to clean up all these classes, giving the timer a larger window to fire while the tree is in a partially destroyed state.
2. Use `tc -batch` to quickly set up the large qdisc hierarchy.
3. Enqueue packets so that the SFQ queue is not empty (otherwise `sfq_rehash` returns early).
4. Sleep for just under 1 second (with some random jitter) so that the `tc qdisc del` command overlaps exactly with the 1-second `sfq_perturbation` timer.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct ifreq ifr;
    strcpy(ifr.ifr_name, ifname);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifr.ifr_ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with many classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 100\n", ifname);
        for (int c = 1; c < 100; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%d htb rate 100mbit\n", ifname, c);
        }
        // The target class where packets will be queued (very low rate to ensure they stay in queue)
        fprintf(bf, "class add dev %s parent 1: classid 1:100 htb rate 8bit\n", ifname);
        for (int c = 101; c <= 500; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%d htb rate 100mbit\n", ifname, c);
        }
        // Add SFQ with a 1-second perturbation timer
        fprintf(bf, "qdisc add dev %s parent 1:100 handle 2: sfq perturb 1\n", ifname);
        fclose(bf);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to ensure the SFQ queue is not empty
        char buf[1000] = {0};
        for (int p = 0; p < 5; p++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // 3. Sleep to overlap the root deletion with the 1-second timer firing.
        // The timer fires at ~1000ms. We sleep for 900ms-1000ms to start deletion just before it fires.
        usleep(900000 + (rand_r(&seed) % 100000));
        
        // 4. Delete the root qdisc (triggers the race)
        sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```]

79/3 2026/08/15 17:43 agent repro-generator
7m Model:
best-expensive

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    int len = recvmsg(fd, &msg, 0);
    if (len < 0) return -1;
    struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
    if (ret_n->nlmsg_type == NLMSG_ERROR) {
        struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
        if (err->error == 0) return 0;
        return err->error;
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_drr(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    return send_nl_req(fd, &req.n);
}

int add_class_drr(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    addattr32(&req.n, sizeof(req), 1, 1000); // TCA_DRR_QUANTUM = 1
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *sender_thread(void *arg) {
    void **args = (void **)arg;
    int ifindex = (int)(long)args[0];
    int *stop = (int *)args[1];
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    int prio = TC_H_MAKE(1<<16, 100);
    if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    char buf[64] = {0};
    while (!*stop) {
        for (int i = 0; i < 100; i++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        sched_yield();
    }
    close(fd);
    return NULL;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    int stop = 0;
    void *args[2] = { (void *)(long)ifindex, &stop };
    pthread_t th;
    pthread_create(&th, NULL, sender_thread, args);
    
    unsigned int seed = time(NULL) + id;
    
    for (int iter = 0; iter < 20; iter++) {
        add_qdisc_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT);
        
        for (int c = 1; c <= 500; c++) {
            add_class_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_MAKE(1<<16, c));
        }
        
        add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE(2<<16, 0), TC_H_MAKE(1<<16, 100));
        
        usleep(900000 + (rand_r(&seed) % 100000));
        
        del_qdisc_root(nl_fd, ifindex);
    }
    
    stop = 1;
    pthread_join(th, NULL);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}
]

Instruction:
You are a security researcher with deep Linux kernel background.
Your goal is to generate a minimal, standalone C program for the strictly defensive
purpose of verifying a bugfix in an isolated environment.

To ensure that we can diagnose why a program might fail to run on the test environment,
you MUST include detailed logging and error checking in the generated C program:
1. Use 'printf(...)' for all progress messages and error logs.
2. Every system call (e.g., socket, bind, listen, connect, ioctl, send) must check for a failure return value.
3. If a call fails, it must print a specific error message including the function name
   and the error string (use strerror(errno)), and then exit with a non-zero status.
4. The program must print a message after every successful major step.
5. Generate code that follows this pattern for all operations:
    int res = do_something();
    if (res < 0) {
        printf("[-] Failed to do_something: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] do_something successful.\n");
6. The compilation and development environment (including compilers, build
   systems, makefiles, and kernel build/header directories) is NOT available
   on the target test VM guest. Do NOT check for, build, or reference any
   compilation tools, build files, or kernel development directories.
7. Do NOT execute shell commands or run external binaries (e.g. by using
   functions like 'system()', 'popen()', or the 'exec' family such as
   'execve()'). All environment checks, capability probings, and reproduction
   steps must be performed directly using standard Linux system calls (such
   as 'open', 'socket', 'ioctl', 'stat', etc.).
8. When reproducing asynchronous kernel timeouts or warnings, always
   include a sufficient delay (using sleep or similar) after deleting
   or unregistering the device to allow the kernel's asynchronous
   timeout to trigger before program exit.


=== PHASE 2: BUG REPRODUCTION (GENERATION) ===
You must now generate a full reproducer candidate attempting to trigger the target bug/crash.
Do NOT generate a probe program. Focus directly on triggering the bug/crash described in the description.
You can assume that all necessary kernel capabilities and privileges (e.g., access to /dev/vhci,
ability to load BPF programs, etc.) have already been verified and are available in the environment.

Do not spend too much time analyzing or trying to generate a perfect one-shot reproducer.
Instead, follow an iterative approach: generate a simple candidate, execute it, analyze the results,
and improve it. Keep your reasoning steps short and focused on the next logical experiment.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Strategy: An analysis of the bug and the previous strategy confirms that the race condition exists between the destruction of the qdisc tree (specifically `htb_destroy` removing the root qdisc from the hash) and the `sfq_perturbation` timer firing. 

To reliably trigger this race, we need to:
1. Widen the race window: We can achieve this by adding a large number of classes (e.g., 500) to the HTB root qdisc. When the root is deleted, `htb_destroy` will take longer to clean up all these classes, giving the timer a larger window to fire while the tree is in a partially destroyed state.
2. Use `tc -batch` to quickly set up the large qdisc hierarchy.
3. Enqueue packets so that the SFQ queue is not empty (otherwise `sfq_rehash` returns early).
4. Sleep for just under 1 second (with some random jitter) so that the `tc qdisc del` command overlaps exactly with the 1-second `sfq_perturbation` timer.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct ifreq ifr;
    strcpy(ifr.ifr_name, ifname);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifr.ifr_ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with many classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 100\n", ifname);
        for (int c = 1; c < 100; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%d htb rate 100mbit\n", ifname, c);
        }
        // The target class where packets will be queued (very low rate to ensure they stay in queue)
        fprintf(bf, "class add dev %s parent 1: classid 1:100 htb rate 8bit\n", ifname);
        for (int c = 101; c <= 500; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%d htb rate 100mbit\n", ifname, c);
        }
        // Add SFQ with a 1-second perturbation timer
        fprintf(bf, "qdisc add dev %s parent 1:100 handle 2: sfq perturb 1\n", ifname);
        fclose(bf);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to ensure the SFQ queue is not empty
        char buf[1000] = {0};
        for (int p = 0; p < 5; p++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // 3. Sleep to overlap the root deletion with the 1-second timer firing.
        // The timer fires at ~1000ms. We sleep for 900ms-1000ms to start deletion just before it fires.
        usleep(900000 + (rand_r(&seed) % 100000));
        
        // 4. Delete the root qdisc (triggers the race)
        sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```


Previous Reproducer Attempt:
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sched.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>

int main(void) {
    int res;

    res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) {
        printf("[-] Failed to socket: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] socket successful.\n");

    close(fd);
    printf("[+] Probe successful.\n");
    return 0;
}




Execution Results & Debugging Feedback:
The environment probe passed successfully. The `unshare(CLONE_NEWUSER|CLONE_NEWNET)` and `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)` calls succeeded, indicating that the environment is ready. Please proceed to generate the full reproducer in the next iteration.

80/4 2026/08/15 17:43 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 6257
							output: 39
							thoughts: 1136
						

Thoughts:
**My Thought Process for Reproducing the `qdisc_tree_reduce_backlog` Warning**

Okay, my primary objective is to create a C reproducer for this `WARNING in qdisc_tree_reduce_backlog` bug. I've been given the exact location of the warning in `sch_api.c` and the relevant stack trace, which points to `sfq_rehash` within `sfq_perturbation` being the culprit.

The user has provided a strategic outline: setting up an HTB -> SFQ hierarchy with numerous classes, enqueuing packets, sleeping to allow the 1-second timer to overlap with root qdisc deletion, and finally deleting the root qdisc. This seems like a solid approach to induce a race condition.

However, a critical constraint has been laid out: I absolutely cannot use `system()`, `popen()`, or any `exec` family functions. This means the `tc ...` commands suggested by the user are off-limits. I must perform all qdisc and class configuration directly using standard Linux system calls, specifically through netlink sockets. This adds a layer of complexity, as I'll need to construct and send netlink messages for operations like creating a dummy interface, adding HTB roots and classes, and then adding the SFQ qdisc with its `perturb` setting.

I need to dive into the source code of `sch_api.c` and `sch_sfq.c` to truly grasp the bug. The warning message itself, `WARN_ON(parentid != TC_H_ROOT)`, is particularly interesting. It implies that within `qdisc_tree_reduce_backlog`, there's an expectation that `parentid` should always be `TC_H_ROOT` under certain conditions, and this expectation is being violated. This will be key to understanding *why* the race condition is happening.

So, my plan is to translate the user's suggested `tc` commands into netlink calls. Initially, I was thinking of using HTB, but upon reviewing its netlink attributes, I realize it's quite involved, requiring rate tables and specific initialization structures. This makes me pause and consider if HTB is strictly necessary. The core of the bug seems to be the interaction between SFQ's timer (`sfq_perturbation`) and the deletion of a parent qdisc.

Could I achieve the same race condition with a simpler qdisc hierarchy? I'm thinking of `prio`. `prio` is considerably less complex to set up via netlink. The user's example showed `tc qdisc add dev dummy0 root handle 1: prio bands 3` and `tc qdisc add dev dummy0 parent 1:1 handle 2: sfq perturb 1`. This looks much more manageable from a netlink perspective. `prio` even automatically creates classes, simplifying things further.

The crucial part of the bug is the race: the timer in `sfq_perturbation` needs to be active when the root qdisc is deleted. The 1-second `perturb` interval in SFQ is the mechanism for this timing. So, the sequence of actions – setting up the qdisc tree, sending some traffic (to potentially trigger backlog reduction and other internal states), and then deleting the root qdisc while the timer is pending – is still the core strategy.

I'll need to meticulously craft the netlink messages to mirror the functionality of adding a dummy interface, setting up the `prio` root qdisc with a handle, attaching an SFQ qdisc with `perturb 1` to one of the `prio` bands, sending some packets, and then issuing the netlink command to delete the root qdisc. The goal is to ensure that the `sfq_perturbation` timer (which fires every second) is in progress or about to fire when `qdisc_tree_reduce_backlog` is invoked during the root qdisc deletion.

I'll also need to look more closely at `sfq_rehash` in `net/sched/sch_sfq.c`. Is it explicitly calling `qdisc_tree_reduce_backlog`? Or does `qdisc_tree_reduce_backlog` get called indirectly as a consequence of `sfq_rehash` or packet drops within the SFQ qdisc during its perturbation cycle? Understanding this call chain will be vital for pinpointing the exact moment the race condition is exposed.

I'm aware that writing netlink helpers from scratch can be tedious, but given the constraint against external libraries, it's the only path forward. I'll aim for a minimal, robust set of netlink message constructions to achieve the desired qdisc configuration.


81/4 2026/08/15 17:43 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

82/4 2026/08/15 17:43 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 8631
							output: 42
							thoughts: 68
						

Thoughts:
**My Thought Process Regarding `sfq_rehash` and `qdisc_tree_reduce_backlog`**

I've been examining the behavior of `sfq_rehash` and I've identified a point of curiosity, perhaps even a potential inefficiency I want to understand better. My initial observation is that `sfq_rehash` appears to make a call to `qdisc_tree_reduce_backlog(sch, dropped, drop_len);` every single time it's invoked, regardless of whether any packets were actually dropped. This means `dropped` could be zero, and `drop_len` could also be zero, yet the function `qdisc_tree_reduce_backlog` is still being called.

This leads me to ponder the internal workings of `qdisc_tree_reduce_backlog` itself. Specifically, I'm wondering if this function is designed to gracefully handle a scenario where `n` (which I assume corresponds to `dropped` in this context) is zero and `len` (which I assume corresponds to `drop_len`) is also zero. If it does indeed have such a null-operation path, then the unconditional call from `sfq_rehash` might be acceptable, even if it feels a bit redundant at first glance. However, if `qdisc_tree_reduce_backlog` has any non-trivial overhead even in the zero-dropped case, then this unconditional call could represent a small but perhaps optimizable performance hit. I need to confirm if `qdisc_tree_reduce_backlog` can indeed handle `n == 0 && len == 0` without doing anything meaningful, which would then clarify the impact of the unconditional call from `sfq_rehash`.


83/4 2026/08/15 17:43 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

84/4 2026/08/15 17:43 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 9343
							output: 40
							thoughts: 464
						

Thoughts:
**My Thought Process Regarding the `qdisc_tree_reduce_backlog` Warning and Race Condition**

Okay, so I've been digging into this `qdisc_tree_reduce_backlog` warning, and it's becoming clear that it's tied to a race condition. My understanding is that `qdisc_tree_reduce_backlog` iterates through the parent qdiscs of a given qdisc. The crucial part is when `qdisc_lookup_rcu` is called to find a parent. If it returns `NULL`, and the `parentid` isn't `TC_H_ROOT`, a warning is logged. This scenario arises when a parent qdisc has been removed from the hash table, but its child qdiscs still hold a reference to its handle in their `sch->parent` field.

This is precisely the race condition I’m observing: a command like `tc qdisc del dev dummy0 root` removes the root qdisc from the hash. Immediately after, or even during the destruction of child qdiscs, a `sfq_perturbation` timer on one of these children can fire. This timer triggers `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. Because the original parent (the root qdisc) is no longer in the hash table, `qdisc_lookup_rcu` correctly returns `NULL`, leading to that warning.

To reliably reproduce this, I need a specific setup:
1.  A root qdisc, like `htb`, `prio`, or `drr`.
2.  A child qdisc, specifically `sfq`, configured with a short `perturb` value – say, 1 second – to make the timer fire frequently.
3.  A mechanism to *delay* the destruction of the child qdiscs *after* the root qdisc has been removed from the hash. The user's strategy of using HTB with 500 classes was a clever way to achieve this delay, as `qdisc_destroy` can take a considerable amount of time with many classes. During this extended destruction process, the `sfq_perturbation` timer has a window to fire.

Now, since I can't execute `system("tc ...")` calls directly in my environment, I need to resort to using netlink. Crafting netlink messages to set up an HTB qdisc with 500 classes is a non-trivial task. I'm exploring alternatives, and `drr` (Deficit Round Robin) or `prio` seem like simpler options than `htb`. I'll need to investigate the specific netlink commands for creating `drr` class structures. My immediate focus is on finding a way to reproduce the race condition using netlink, and `drr` seems like a more manageable starting point for that.


85/4 2026/08/15 17:44 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_drr.c Name:drr_change_class]

Results:
map[SourceCode:  58:	static int drr_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
  59:				    struct nlattr **tca, unsigned long *arg,
  60:				    struct netlink_ext_ack *extack)
  61:	{
  62:		struct drr_sched *q = qdisc_priv(sch);
  63:		struct drr_class *cl = (struct drr_class *)*arg;
  64:		struct nlattr *opt = tca[TCA_OPTIONS];
  65:		struct nlattr *tb[TCA_DRR_MAX + 1];
  66:		u32 quantum;
  67:		int err;
  68:	
  69:		if (!opt) {
  70:			NL_SET_ERR_MSG(extack, "DRR options are required for this operation");
  71:			return -EINVAL;
  72:		}
  73:	
  74:		err = nla_parse_nested_deprecated(tb, TCA_DRR_MAX, opt, drr_policy,
  75:						  extack);
  76:		if (err < 0)
  77:			return err;
  78:	
  79:		if (tb[TCA_DRR_QUANTUM]) {
  80:			quantum = nla_get_u32(tb[TCA_DRR_QUANTUM]);
  81:			if (quantum == 0) {
  82:				NL_SET_ERR_MSG(extack, "Specified DRR quantum cannot be zero");
  83:				return -EINVAL;
  84:			}
  85:		} else
  86:			quantum = psched_mtu(qdisc_dev(sch));
  87:	
  88:		if (cl != NULL) {
  89:			if (tca[TCA_RATE]) {
  90:				err = gen_replace_estimator(&cl->bstats, NULL,
  91:							    &cl->rate_est,
  92:							    NULL, true,
  93:							    tca[TCA_RATE]);
  94:				if (err) {
  95:					NL_SET_ERR_MSG(extack, "Failed to replace estimator");
  96:					return err;
  97:				}
  98:			}
  99:	
 100:			if (tb[TCA_DRR_QUANTUM])
 101:				WRITE_ONCE(cl->quantum, quantum);
 102:	
 103:			return 0;
 104:		}
 105:	
 106:		cl = kzalloc_obj(struct drr_class);
 107:		if (cl == NULL)
 108:			return -ENOBUFS;
 109:	
 110:		gnet_stats_basic_sync_init(&cl->bstats);
 111:		INIT_LIST_HEAD(&cl->alist);
 112:		cl->common.classid = classid;
 113:		cl->quantum	   = quantum;
 114:		cl->qdisc	   = qdisc_create_dflt(sch->dev_queue,
 115:						       &pfifo_qdisc_ops, classid,
 116:						       NULL);
 117:		if (cl->qdisc == NULL)
 118:			cl->qdisc = &noop_qdisc;
 119:		else
 120:			qdisc_hash_add(cl->qdisc, true);
 121:	
 122:		if (tca[TCA_RATE]) {
 123:			err = gen_replace_estimator(&cl->bstats, NULL, &cl->rate_est,
 124:						    NULL, true, tca[TCA_RATE]);
 125:			if (err) {
 126:				NL_SET_ERR_MSG(extack, "Failed to replace estimator");
 127:				qdisc_put(cl->qdisc);
 128:				kfree(cl);
 129:				return err;
 130:			}
 131:		}
 132:	
 133:		sch_tree_lock(sch);
 134:		qdisc_class_hash_insert(&q->clhash, &cl->common);
 135:		sch_tree_unlock(sch);
 136:	
 137:		qdisc_class_hash_grow(sch, &q->clhash);
 138:	
 139:		*arg = (unsigned long)cl;
 140:		return 0;
 141:	}
 SourceFile:net/sched/sch_drr.c]

86/4 2026/08/15 17:44 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 11097
							output: 38
							thoughts: 73
						

Thoughts:
**My Thought Process Regarding `drr` and `TCA_OPTIONS`**

I'm currently pondering the correct way to configure the `drr` (Deficit Round Robin) scheduler within the `tc` (traffic control) subsystem. Specifically, my initial question was whether `drr` mandates the use of `TCA_OPTIONS` containing `TCA_DRR_QUANTUM`, or if it's acceptable to pass empty options.

My immediate recollection, or perhaps a quick mental lookup, tells me that if certain options are not provided (indicated by `!opt`), the system will return an error code, specifically `-EINVAL`. This leads me to conclude that simply passing empty options for `drr` will not suffice.

Therefore, my current understanding is that I *must* provide `TCA_OPTIONS` and, within that, I need to specify the `TCA_DRR_QUANTUM`. This quantum value is crucial for the operation of the DRR algorithm, defining the amount of credit distributed to each class.

Now that I've established the requirement for `TCA_DRR_QUANTUM`, my next step is to shift my focus to the `prio` (priority) scheduler, to understand its configuration requirements and how it might interact with or differ from the `drr` setup.


87/4 2026/08/15 17:44 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_prio.c Name:prio_tune]

Results:
map[SourceCode: 176:	static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
 177:			     struct netlink_ext_ack *extack)
 178:	{
 179:		struct prio_sched_data *q = qdisc_priv(sch);
 180:		struct Qdisc *queues[TCQ_PRIO_BANDS];
 181:		int oldbands = q->bands, i;
 182:		struct tc_prio_qopt *qopt;
 183:	
 184:		if (nla_len(opt) < sizeof(*qopt))
 185:			return -EINVAL;
 186:		qopt = nla_data(opt);
 187:	
 188:		if (qopt->bands > TCQ_PRIO_BANDS || qopt->bands < TCQ_MIN_PRIO_BANDS)
 189:			return -EINVAL;
 190:	
 191:		for (i = 0; i <= TC_PRIO_MAX; i++) {
 192:			if (qopt->priomap[i] >= qopt->bands)
 193:				return -EINVAL;
 194:		}
 195:	
 196:		/* Before commit, make sure we can allocate all new qdiscs */
 197:		for (i = oldbands; i < qopt->bands; i++) {
 198:			queues[i] = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
 199:						      TC_H_MAKE(sch->handle, i + 1),
 200:						      extack);
 201:			if (!queues[i]) {
 202:				while (i > oldbands)
 203:					qdisc_put(queues[--i]);
 204:				return -ENOMEM;
 205:			}
 206:		}
 207:	
 208:		prio_offload(sch, qopt);
 209:		sch_tree_lock(sch);
 210:		q->bands = qopt->bands;
 211:		memcpy(q->prio2band, qopt->priomap, TC_PRIO_MAX+1);
 212:	
 213:		for (i = q->bands; i < oldbands; i++)
 214:			qdisc_purge_queue(q->queues[i]);
 215:	
 216:		for (i = oldbands; i < q->bands; i++) {
 217:			q->queues[i] = queues[i];
 218:			if (q->queues[i] != &noop_qdisc)
 219:				qdisc_hash_add(q->queues[i], true);
 220:		}
 221:	
 222:		sch_tree_unlock(sch);
 223:	
 224:		for (i = q->bands; i < oldbands; i++)
 225:			qdisc_put(q->queues[i]);
 226:		return 0;
 227:	}
 SourceFile:net/sched/sch_prio.c]

88/4 2026/08/15 17:44 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 12080
							output: 38
							thoughts: 2650
						

Thoughts:
**My Thought Process on Setting up Network Traffic Control for Delaying `qdisc_destroy`**

This entire endeavor is driven by the need to delay the destruction of a traffic control queueing discipline (`qdisc_destroy`), a requirement that necessitates creating a complex setup within the network stack. The core challenge is to instantiate enough network objects to keep the system busy for a measurable period.

Initially, I considered using the `prio` qdisc. My understanding is that `prio` requires a `struct tc_prio_qopt`, which defines the number of "bands" and a mapping from logical priority to these bands. I noted that `TC_PRIO_MAX` is 15, leading to a `priomap` of 16 bytes and a total structure size of 20 bytes. This seemed quite straightforward to construct. The `prio` qdisc itself supports up to 16 bands. My initial thought was: "If I use `prio`, I can create a root `prio` qdisc with 16 bands. Then I can add `sfq` to one of the bands."

However, a crucial question arose: "Is 16 bands enough to delay `qdisc_destroy`?" I recalled that the user's strategy involved creating 500 classes to achieve the desired delay. The limitation of 16 bands in `prio` seemed insufficient for this scale. This led me to re-evaluate my approach.

My next thought was, "If 16 bands is not enough, maybe I can use `drr` and create 500 classes?" I revisited the requirements for `drr`. Class creation for `drr` requires `TCA_OPTIONS` with `TCA_DRR_QUANTUM`. I confirmed that this also seemed "very easy to construct."

Before diving into coding, I paused to consider the *method* of implementation. The instructions explicitly state: "Do NOT execute shell commands or run external binaries (e.g. by using functions like 'system()', 'popen()', or the 'exec' family such as 'execve()'). All environment checks, capability probings, and reproduction steps must be performed directly using standard Linux system calls (such as 'open', 'socket', 'ioctl', 'stat', etc.)." This means I *must not* use `system()` or similar shell-out functions.

Therefore, the path forward was clear: I need to interact directly with the kernel's netlink interface. This led me to the idea of writing a "netlink helper" to send these network control messages.

I started sketching out the necessary netlink helper functions: `addattr_l` for adding attributes, `addattr32` for 32-bit attributes, `addattr_str` for string attributes, and `addattr_nest` for creating nested attributes.

Next, I focused on the prerequisites for setting up traffic control: a network interface. I decided the most robust way to do this programmatically would be to create a dummy interface. I outlined the netlink message structure for creating a dummy interface (`create_dummy`), including setting the interface name and type.

Then came the thought of bringing the interface up. While `ioctl(SIOCSIFFLAGS)` is a possibility, I considered if netlink could handle this too. I noted that bringing it up via netlink is also feasible. However, I realized `ioctl(SIOCSIFFLAGS)` is a direct system call and thus perfectly acceptable according to the constraints. I also briefly questioned if `ioctl(SIOCSIFNAME)` could create an interface, but quickly dismissed it as incorrect for interface creation.

My netlink interaction plan solidified: I'd use `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)` to establish a connection to the kernel's routing netlink socket. I began writing a generic `send_nl_req` function to handle sending netlink messages and receiving acknowledgments or errors.

With the general netlink infrastructure in place, I refined the `create_dummy` function to use `send_nl_req`. I also considered the case where the dummy interface might already exist, noting that receiving `-EEXIST` would be acceptable behavior.

For interface management, I decided to use `ioctl` for simplicity where appropriate. I wrote functions to get an interface index (`get_ifindex`) and to bring an interface up (`bring_up`) using `SIOCGIFFLAGS` and `SIOCSIFFLAGS`.

Finally, I returned to the core task of setting up the traffic control. I started defining the function to add the root `drr` qdisc (`add_qdisc_drr`), specifying its handle and parent. My thought process here was that I would need to add the root qdisc first, and then proceed to add classes within it to reach the target of 500 classes. I also briefly paused to double-check the requirements for the `drr` qdisc initialization itself, specifically if it required any options during root qdisc creation, and noted that my initial understanding was that it did not strictly require them at this stage.


89/4 2026/08/15 17:44 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_drr.c Name:drr_init]

Results:
map[SourceCode: 488:	static int __init drr_init(void)
 489:	{
 490:		return register_qdisc(&drr_qdisc_ops);
 491:	}
 SourceFile:net/sched/sch_drr.c]

90/4 2026/08/15 17:44 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 14836
							output: 41
							thoughts: 13
						

Thoughts:
**My Thought Process Regarding `drr_init_qdisc`**

Ah, I see the confusion here. My mind immediately went to `drr_init_qdisc`. That's what I was *actually* thinking about when I processed the input, not some other `drr_init` function. I know the distinction is critical, especially in this context. The initialization sequence for the Deficit Round Robin (DRR) queueing discipline is a specific and well-defined process, and it's this particular function, `drr_init_qdisc`, that handles its setup. I was anticipating the need to delve into its parameters, its role in allocating bandwidth, and how it integrates with the broader networking stack. This level of detail is paramount for any expert in the field who needs to understand the nuances of traffic shaping and queuing mechanisms.


91/4 2026/08/15 17:44 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_drr.c Name:drr_init_qdisc]

Results:
map[SourceCode: 411:	static int drr_init_qdisc(struct Qdisc *sch, struct nlattr *opt,
 412:				  struct netlink_ext_ack *extack)
 413:	{
 414:		struct drr_sched *q = qdisc_priv(sch);
 415:		int err;
 416:	
 417:		err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
 418:		if (err)
 419:			return err;
 420:		err = qdisc_class_hash_init(&q->clhash);
 421:		if (err < 0)
 422:			return err;
 423:		INIT_LIST_HEAD(&q->active);
 424:		return 0;
 425:	}
 SourceFile:net/sched/sch_drr.c]

92/4 2026/08/15 17:44 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15134
							output: 38
							thoughts: 696
						

Thoughts:
**My Thought Process on Network Traffic Control Configuration**

Alright, so my immediate thought here is about the specifics of the `drr_init_qdisc` function. I've confirmed, and it seems straightforward enough, that it doesn't actually *require* any specific options to initialize. That's a good baseline to have.

Next, I'm focused on the practical implementation of creating a DRR (Deficit Round Robin) class. I've got the C code laid out for `add_class_drr`. Looking at the structure, I'm setting up a Netlink message (`nlmsghdr`) and the traffic control message (`tcmsg`). The flags are standard for a request to create something new, ensuring exclusivity (`NLM_F_EXCL`) and expecting an acknowledgment (`NLM_F_ACK`). I'm specifying the interface index, parent handle, and the desired class ID. Critically, I'm marking the kind of traffic control object as "drr" using `addattr_str`. Then, within the `TCA_OPTIONS` attribute, I'm adding the configuration specific to DRR. I see `TCA_DRR_QUANTUM` is set to `1000` (which I've noted in the code comment as being represented by attribute type `1`). This value is fundamental to how DRR operates, dictating the credit given to each class.

Following this, my attention shifts to configuring an SFQ (Stochastic Fairness Queuing) qdisc. The `add_qdisc_sfq` function is where I'm at. Similar to the DRR class creation, I'm constructing a Netlink request with the necessary message headers and traffic control parameters, including the interface index, handle, and parent. I'm designating "sfq" as the qdisc kind. Now, the interesting part is within the `TCA_OPTIONS` for SFQ. I'm pausing here because I need to be precise about the SFQ options. I'm mentally referencing the structure `tc_sfq_qopt_v1`, but I'm also recalling that SFQ can accept a simpler `tc_sfq_qopt` structure. This detail is crucial for ensuring the correct parameters are passed and that the SFQ qdisc is configured as intended. I need to double-check the exact version of the SFQ options structure that `sfq_change` expects or that is supported in this context.


93/4 2026/08/15 17:44 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

94/4 2026/08/15 17:44 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 17830
							output: 39
							thoughts: 2474
						

Thoughts:
**My Thought Process Regarding SFQ and DRR Interaction for Delayed Destruction**

Alright, I've been digging into how the `sfq` qdisc operates within the traffic control framework, specifically when I need to orchestrate its delayed destruction. My initial goal was to understand the `sfq_change` operation and how to pass its configuration options.

I recalled that `sfq_change` expects a `struct tc_sfq_qopt`. Looking at its definition:

```c
struct tc_sfq_qopt {
	unsigned	quantum;		/* Bytes per round allocated to flow */
	int		perturb_period;		/* Period of hash perturbation */
	__u32		limit;			/* Maximal packets in queue */
	unsigned	divisor;		/* Hash divisor  */
	unsigned	flows;			/* Maximal number of flows  */
};
```

My first inclination was that I could directly pass this structure as the `TCA_OPTIONS` attribute when creating or modifying the `sfq` qdisc. I even drafted some code to reflect this:

```c
struct tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024]; // Buffer for attributes
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq"); // Specify the qdisc type

    // Configure SFQ options
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second for perturbation
        .limit = 1000,      // Max packets in queue
        .divisor = 1024,    // Hash divisor
        .flows = 127,       // Max flows
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt)); // Pass the struct directly

    return send_nl_req(fd, &req.n); // Send the netlink message
}
```

However, upon closer inspection of how `sfq_change` processes `TCA_OPTIONS`, I realized my assumption was correct. The code snippet `struct tc_sfq_qopt *ctl = nla_data(opt);` confirms that the `TCA_OPTIONS` attribute for `sfq` indeed contains the `struct tc_sfq_qopt` data directly, not nested attributes. This simplifies things considerably.

Next, I needed to figure out how to delete the root qdisc. This is a more straightforward operation using the `RTM_DELQDISC` message type with `TC_H_ROOT` as the parent:

```c
int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024]; // Buffer for attributes
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK, // Request deletion and acknowledge
        .n.nlmsg_type = RTM_DELQDISC,              // Message type for deleting a qdisc
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,                 // Target the root qdisc
        .t.tcm_handle = 0,                         // Handle is often 0 for root deletion
    };
    return send_nl_req(fd, &req.n); // Send the netlink message
}
```

Now, the critical part: setting up the environment to delay the destruction of `sfq`. My strategy here involves using `drr` (Deficit Round Robin) as a parent qdisc and creating a large number of classes under it. This is because the `sfq` qdisc's cleanup logic, specifically `sfq_rehash` and its subsequent call to `qdisc_tree_reduce_backlog`, can trigger warnings if the parent qdisc (when deleted) is not `TC_H_ROOT`. To avoid this, I want to ensure that the `sfq` qdisc is attached to a class that will be deleted *after* the root qdisc is requested for deletion, but not immediately.

The `drr` qdisc allows for creating many classes, and I planned to create 500 of them. The `setup_qdiscs` function outlines this:

```c
// Assuming helper functions like TC_H_MAKE, add_qdisc_drr, add_class_drr, add_qdisc_sfq exist

int setup_qdiscs(int fd, int ifindex) {
    // Add the DRR root qdisc
    add_qdisc_drr(fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT);

    // Create 500 DRR classes, each as a child of the DRR root
    for (int i = 1; i <= 500; i++) {
        add_class_drr(fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_MAKE(1<<16, i));
    }

    // Attach the SFQ qdisc to class 1:100
    add_qdisc_sfq(fd, ifindex, TC_H_MAKE(2<<16, 0), TC_H_MAKE(1<<16, 100));
    return 0;
}
```

I had a moment of doubt about the `add_class_drr` parameters. Specifically, I questioned whether the `parent` argument should be the DRR qdisc handle. Checking the `drr_change_class` function's requirements confirmed that classes are indeed attached to the DRR qdisc. Therefore, the `parent` for these classes should be the DRR qdisc's handle, and the `classid` would be unique for each class. This led me to correct the `add_class_drr` usage:

```c
// Corrected understanding of add_class_drr parameters
int add_class_drr(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024]; // Buffer for attributes
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS, // Message type for creating a class
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,       // The parent qdisc or class handle
        .t.tcm_handle = classid,      // The unique class identifier
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr"); // Specify DRR class type

    // DRR specific options (e.g., quantum) are nested within TCA_OPTIONS
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    addattr32(&req.n, sizeof(req), 1, 1000); // TCA_DRR_QUANTUM attribute
    addattr_nest_end(&req.n, opts);

    return send_nl_req(fd, &req.n); // Send the netlink message
}
```
So, the setup becomes:
```c
    // Add the DRR root qdisc
    add_qdisc_drr(fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT);
    // Create 500 DRR classes, where the parent is the DRR qdisc handle
    for (int i = 1; i <= 500; i++) {
        add_class_drr(fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_MAKE(1<<16, i));
    }
    // Attach SFQ to class 1:100
    add_qdisc_sfq(fd, ifindex, TC_H_MAKE(2<<16, 0), TC_H_MAKE(1<<16, 100));
```

My next thought was about packet classification. I wondered if I needed to explicitly send packets and classify them into class `1:100` for them to enter the `sfq` qdisc. If packets didn't reach `sfq`, then `sfq_rehash` wouldn't find any queued packets, and the whole cleanup logic might behave differently.

However, I dug into `sfq_rehash`'s behavior more deeply. It iterates through its slots, and if `slot->qlen` is zero, it `continue`s. Crucially, even if no packets are queued (`dropped` remains 0), it still calls `qdisc_tree_reduce_backlog(sch, 0, 0)`. This function, when processing the backlog reduction, walks up the qdisc tree using `sch->parent`. If the root qdisc is deleted, `qdisc_lookup_rcu` will return `NULL` when looking up the parent `1<<16`. This then triggers a `WARN_ON_ONCE(parentid != TC_H_ROOT)`, as `parentid` would be `1:100`, not `TC_H_ROOT`.

This is a key insight: **I don't need to send any packets.** The mere act of attempting to clean up the `sfq` qdisc (which will happen implicitly or explicitly as part of the deletion process) coupled with the deletion of its parent qdisc (the DRR root) is enough to trigger the problematic warning. The presence of the 500 DRR classes ensures that the DRR qdisc itself isn't the root of the tree being deleted directly.

The final question was whether `sfq_rehash` is *always* called when `sch->q.qlen == 0`. I suspect it might be tied to `sfq_perturbation` or other internal timers/events that would ensure the rehashing logic runs even with an empty queue, leading to the `qdisc_tree_reduce_backlog` call. Regardless, the mechanism for triggering the warning is solid based on the `qdisc_tree_reduce_backlog` logic. This simplifies the setup significantly, as I don't need to worry about traffic generation or complex classification rules to achieve the delayed destruction effect.


95/4 2026/08/15 17:45 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_perturbation]

Results:
map[SourceCode: 604:	static void sfq_perturbation(struct timer_list *t)
 605:	{
 606:		struct sfq_sched_data *q = timer_container_of(q, t, perturb_timer);
 607:		struct Qdisc *sch = q->sch;
 608:		spinlock_t *root_lock;
 609:		siphash_key_t nkey;
 610:		int period;
 611:	
 612:		get_random_bytes(&nkey, sizeof(nkey));
 613:		rcu_read_lock();
 614:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 615:		spin_lock(root_lock);
 616:		q->perturbation = nkey;
 617:		if (!q->filter_list && q->tail)
 618:			sfq_rehash(sch);
 619:		spin_unlock(root_lock);
 620:	
 621:		/* q->perturb_period can change under us from
 622:		 * sfq_change() and sfq_destroy().
 623:		 */
 624:		period = READ_ONCE(q->perturb_period);
 625:		if (period)
 626:			mod_timer(&q->perturb_timer, jiffies + period);
 627:		rcu_read_unlock();
 628:	}
 SourceFile:net/sched/sch_sfq.c]

96/4 2026/08/15 17:45 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 20749
							output: 38
							thoughts: 387
						

Thoughts:
**My Thought Process Regarding Packet Queuing and Dummy Interfaces**

My initial contemplation centers on the condition `if (!q->filter_list && q->tail)`. I'm keenly aware that `q->tail` being non-NULL signifies the presence of packets waiting in the queue. The critical insight here is that if `q->tail` is NULL, the `sfq_rehash` function is *not* invoked. This immediately leads me to conclude that, in this scenario, packets *must* be sent and, crucially, they *need* to be enqueued within the `sfq` qdisc.

A subsequent question arises: if packets are enqueued, does that mean they won't be dequeued right away? My knowledge of the network stack suggests that if the interface is UP, the qdisc *could* be dequeued by the network stack. However, I immediately recall that this is a dummy interface. Dummy interfaces have a specific behavior: they immediately drop packets within the `dummy_xmit` function.

My next line of inquiry is directed at `dummy_xmit` and its interaction with the qdisc. Does `dummy_xmit` actually dequeue packets from the qdisc? I understand that `dev_queue_xmit` is responsible for enqueuing packets to the qdisc, and then `qdisc_run` handles the dequeueing process, eventually calling `dev_hard_start_xmit`.

This brings me to a strategic consideration: if my objective is to ensure packets remain within the qdisc, should I keep the interface DOWN? The counterpoint to this is that if the interface is DOWN, `dev_queue_xmit` itself might drop packets *before* they even get a chance to be enqueued to the qdisc.

I then pivot to an alternative strategy. What if the interface is UP, but I deliberately set a very low rate for the associated class? The expectation is that packets would then remain in the queue. However, I immediately recognize that the `drr` (Deficit Round Robin) scheduler, which is likely in play here, does not inherently support rate limiting. If `drr` is used, packets will be dequeued immediately, defeating my goal.

So, the fundamental question becomes: how can I *ensure* packets stay within the queue? My mind drifts to the `tbf` (Token Bucket Filter) as a potential mechanism for rate limiting. But then I ponder: can I attach `sfq` to `tbf`? My understanding is that `tbf` is typically a classless qdisc. However, a quick mental check (or a lookup if I were unsure) reminds me that `tbf` *is* classful; it has a single class. This realization prompts me to investigate `tbf` further.


97/4 2026/08/15 17:45 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_tbf.c Name:tbf_change]

Results:
map[SourceCode: 362:	static int tbf_change(struct Qdisc *sch, struct nlattr *opt,
 363:			      struct netlink_ext_ack *extack)
 364:	{
 365:		int err;
 366:		struct tbf_sched_data *q = qdisc_priv(sch);
 367:		struct nlattr *tb[TCA_TBF_MAX + 1];
 368:		struct tc_tbf_qopt *qopt;
 369:		struct Qdisc *child = NULL;
 370:		struct Qdisc *old = NULL;
 371:		struct psched_ratecfg rate;
 372:		struct psched_ratecfg peak;
 373:		u64 max_size;
 374:		s64 buffer, mtu;
 375:		u64 rate64 = 0, prate64 = 0;
 376:	
 377:		err = nla_parse_nested_deprecated(tb, TCA_TBF_MAX, opt, tbf_policy,
 378:						  NULL);
 379:		if (err < 0)
 380:			return err;
 381:	
 382:		err = -EINVAL;
 383:		if (tb[TCA_TBF_PARMS] == NULL)
 384:			goto done;
 385:	
 386:		qopt = nla_data(tb[TCA_TBF_PARMS]);
 387:		if (qopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
 388:			qdisc_put_rtab(qdisc_get_rtab(&qopt->rate,
 389:						      tb[TCA_TBF_RTAB],
 390:						      NULL));
 391:	
 392:		if (qopt->peakrate.linklayer == TC_LINKLAYER_UNAWARE)
 393:				qdisc_put_rtab(qdisc_get_rtab(&qopt->peakrate,
 394:							      tb[TCA_TBF_PTAB],
 395:							      NULL));
 396:	
 397:		buffer = min_t(u64, PSCHED_TICKS2NS(qopt->buffer), ~0U);
 398:		mtu = min_t(u64, PSCHED_TICKS2NS(qopt->mtu), ~0U);
 399:	
 400:		if (tb[TCA_TBF_RATE64])
 401:			rate64 = nla_get_u64(tb[TCA_TBF_RATE64]);
 402:		psched_ratecfg_precompute(&rate, &qopt->rate, rate64);
 403:	
 404:		if (tb[TCA_TBF_BURST]) {
 405:			max_size = nla_get_u32(tb[TCA_TBF_BURST]);
 406:			buffer = psched_l2t_ns(&rate, max_size);
 407:		} else {
 408:			max_size = min_t(u64, psched_ns_t2l(&rate, buffer), ~0U);
 409:		}
 410:	
 411:		if (qopt->peakrate.rate) {
 412:			if (tb[TCA_TBF_PRATE64])
 413:				prate64 = nla_get_u64(tb[TCA_TBF_PRATE64]);
 414:			psched_ratecfg_precompute(&peak, &qopt->peakrate, prate64);
 415:			if (peak.rate_bytes_ps <= rate.rate_bytes_ps) {
 416:				pr_warn_ratelimited("sch_tbf: peakrate %llu is lower than or equals to rate %llu !\n",
 417:						peak.rate_bytes_ps, rate.rate_bytes_ps);
 418:				err = -EINVAL;
 419:				goto done;
 420:			}
 421:	
 422:			if (tb[TCA_TBF_PBURST]) {
 423:				u32 pburst = nla_get_u32(tb[TCA_TBF_PBURST]);
 424:				max_size = min_t(u32, max_size, pburst);
 425:				mtu = psched_l2t_ns(&peak, pburst);
 426:			} else {
 427:				max_size = min_t(u64, max_size, psched_ns_t2l(&peak, mtu));
 428:			}
 429:		} else {
 430:			memset(&peak, 0, sizeof(peak));
 431:		}
 432:	
 433:		if (max_size < psched_mtu(qdisc_dev(sch)))
 434:			pr_warn_ratelimited("sch_tbf: burst %llu is lower than device %s mtu (%u) !\n",
 435:					    max_size, qdisc_dev(sch)->name,
 436:					    psched_mtu(qdisc_dev(sch)));
 437:	
 438:		if (!max_size) {
 439:			err = -EINVAL;
 440:			goto done;
 441:		}
 442:	
 443:		if (q->qdisc != &noop_qdisc) {
 444:			err = fifo_set_limit(q->qdisc, qopt->limit);
 445:			if (err)
 446:				goto done;
 447:		} else if (qopt->limit > 0) {
 448:			child = fifo_create_dflt(sch, &bfifo_qdisc_ops, qopt->limit,
 449:						 extack);
 450:			if (IS_ERR(child)) {
 451:				err = PTR_ERR(child);
 452:				goto done;
 453:			}
 454:	
 455:			/* child is fifo, no need to check for noop_qdisc */
 456:			qdisc_hash_add(child, true);
 457:		}
 458:	
 459:		sch_tree_lock(sch);
 460:		if (child) {
 461:			qdisc_purge_queue(q->qdisc);
 462:			old = q->qdisc;
 463:			q->qdisc = child;
 464:		}
 465:		q->limit = qopt->limit;
 466:		if (tb[TCA_TBF_PBURST])
 467:			q->mtu = mtu;
 468:		else
 469:			q->mtu = PSCHED_TICKS2NS(qopt->mtu);
 470:		q->max_size = max_size;
 471:		if (tb[TCA_TBF_BURST])
 472:			q->buffer = buffer;
 473:		else
 474:			q->buffer = PSCHED_TICKS2NS(qopt->buffer);
 475:		q->tokens = q->buffer;
 476:		q->ptokens = q->mtu;
 477:	
 478:		memcpy(&q->rate, &rate, sizeof(struct psched_ratecfg));
 479:		memcpy(&q->peak, &peak, sizeof(struct psched_ratecfg));
 480:	
 481:		sch_tree_unlock(sch);
 482:		qdisc_put(old);
 483:		err = 0;
 484:	
 485:		tbf_offload_change(sch, extack);
 486:	done:
 487:		return err;
 488:	}
 SourceFile:net/sched/sch_tbf.c]

98/4 2026/08/15 17:45 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 23355
							output: 36
							thoughts: 99
						

Thoughts:
**My Thought Process Regarding Queue Management**

Initially, I was considering implementing a Token Bucket Filter (`tbf`) qdisc. However, I quickly realized that configuring `tbf` via netlink presents a significant level of complexity. It necessitates the use of `TCA_TBF_PARMS` along with the `struct tc_tbf_qopt`, and I would also need to manage rate tables. This seems like overkill for my current objective.

Then, a more straightforward solution occurred to me: what if I simply want to ensure that packets remain buffered within the queue for a period, without necessarily imposing strict rate limiting as a `tbf` does? This is precisely where the `plug` qdisc comes into play. I recalled that the `plug` qdisc is specifically designed for this scenario. Its core functionality is to buffer packets until it receives an explicit command to release them. This aligns perfectly with my immediate need. Therefore, my next step is to thoroughly investigate the `plug` qdisc's capabilities and configuration.


99/4 2026/08/15 17:45 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_plug.c Name:plug_change]

Results:
map[SourceCode: 148:	/* Receives 4 types of messages:
 149:	 * TCQ_PLUG_BUFFER: Inset a plug into the queue and
 150:	 *  buffer any incoming packets
 151:	 * TCQ_PLUG_RELEASE_ONE: Dequeue packets from queue head
 152:	 *   to beginning of the next plug.
 153:	 * TCQ_PLUG_RELEASE_INDEFINITE: Dequeue all packets from queue.
 154:	 *   Stop buffering packets until the next TCQ_PLUG_BUFFER
 155:	 *   command is received (just act as a pass-thru queue).
 156:	 * TCQ_PLUG_LIMIT: Increase/decrease queue size
 157:	 */
 158:	static int plug_change(struct Qdisc *sch, struct nlattr *opt,
 159:			       struct netlink_ext_ack *extack)
 160:	{
 161:		struct plug_sched_data *q = qdisc_priv(sch);
 162:		struct tc_plug_qopt *msg;
 163:	
 164:		msg = nla_data(opt);
 165:		if (nla_len(opt) < sizeof(*msg))
 166:			return -EINVAL;
 167:	
 168:		switch (msg->action) {
 169:		case TCQ_PLUG_BUFFER:
 170:			/* Save size of the current buffer */
 171:			q->pkts_last_epoch = q->pkts_current_epoch;
 172:			q->pkts_current_epoch = 0;
 173:			if (q->unplug_indefinite)
 174:				q->throttled = true;
 175:			q->unplug_indefinite = false;
 176:			break;
 177:		case TCQ_PLUG_RELEASE_ONE:
 178:			/* Add packets from the last complete buffer to the
 179:			 * packets to be released set.
 180:			 */
 181:			q->pkts_to_release += q->pkts_last_epoch;
 182:			q->pkts_last_epoch = 0;
 183:			q->throttled = false;
 184:			netif_schedule_queue(sch->dev_queue);
 185:			break;
 186:		case TCQ_PLUG_RELEASE_INDEFINITE:
 187:			q->unplug_indefinite = true;
 188:			q->pkts_to_release = 0;
 189:			q->pkts_last_epoch = 0;
 190:			q->pkts_current_epoch = 0;
 191:			q->throttled = false;
 192:			netif_schedule_queue(sch->dev_queue);
 193:			break;
 194:		case TCQ_PLUG_LIMIT:
 195:			/* Limit is supplied in bytes */
 196:			q->limit = msg->limit;
 197:			break;
 198:		default:
 199:			return -EINVAL;
 200:		}
 201:	
 202:		return 0;
 203:	}
 SourceFile:net/sched/sch_plug.c]

100/4 2026/08/15 17:45 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 24392
							output: 38
							thoughts: 120
						

Thoughts:
**My Thought Process Regarding SFQ Attachment**

Okay, so my initial thought is about `plug`. I understand that `plug` is a classless queuing discipline (qdisc). This immediately flags a problem for me because `sfq` (Stochastic Fairness Queuing) absolutely requires a parent class to operate within. You can't directly attach `sfq` to something that doesn't have any concept of classes.

Then, I pause and re-evaluate my understanding of `plug`. I confirm to myself that, yes, `plug` truly lacks any class hierarchy. This reinforces the earlier realization: I *need* `sfq` to be a child of *some* classful qdisc. My goal is to have `sfq` manage the queuing, ensuring packets stay within its fairness mechanism.

My mind then drifts to `prio` (priority) as a potential parent. However, I quickly recall its behavior: with `prio`, packets are typically dequeued immediately based on their priority. This isn't what I want; I want them to *stay* in `sfq` for its fairness processing, not be immediately snatched up by `prio`.

This leads me to a slightly different line of inquiry. What if I could intercept the packets *before* they even get to the qdisc layer? I start considering the possibility of simply *not* bringing the network interface UP. My hypothesis here is that if the interface isn't active, packets might be dropped at an earlier stage, specifically within the `dev_queue_xmit` function, before they ever have a chance to interact with any qdisc, including the one I might have configured. This seems like a potentially simpler way to achieve a "drop everything" behavior if the interface isn't ready. To validate this, I need to go and investigate the `dev_queue_xmit` function itself.


101/4 2026/08/15 17:45 tool codesearch-definition-source
0m Args:
map[ContextFile:net/core/dev.c Name:__dev_queue_xmit]

Results:
map[SourceCode:4750:	/**
4751:	 * __dev_queue_xmit() - transmit a buffer
4752:	 * @skb:	buffer to transmit
4753:	 * @sb_dev:	suboordinate device used for L2 forwarding offload
4754:	 *
4755:	 * Queue a buffer for transmission to a network device. The caller must
4756:	 * have set the device and priority and built the buffer before calling
4757:	 * this function. The function can be called from an interrupt.
4758:	 *
4759:	 * When calling this method, interrupts MUST be enabled. This is because
4760:	 * the BH enable code must have IRQs enabled so that it will not deadlock.
4761:	 *
4762:	 * Regardless of the return value, the skb is consumed, so it is currently
4763:	 * difficult to retry a send to this method. (You can bump the ref count
4764:	 * before sending to hold a reference for retry if you are careful.)
4765:	 *
4766:	 * Return:
4767:	 * * 0				- buffer successfully transmitted
4768:	 * * positive qdisc return code	- NET_XMIT_DROP etc.
4769:	 * * negative errno		- other errors
4770:	 */
4771:	int __dev_queue_xmit(struct sk_buff *skb, struct net_device *sb_dev)
4772:	{
4773:		struct net_device *dev = skb->dev;
4774:		struct netdev_queue *txq = NULL;
4775:		enum skb_drop_reason reason;
4776:		int cpu, rc = -ENOMEM;
4777:		bool again = false;
4778:		struct Qdisc *q;
4779:	
4780:		skb_reset_mac_header(skb);
4781:		skb_assert_len(skb);
4782:	
4783:		if (unlikely(skb_shinfo(skb)->tx_flags &
4784:			     (SKBTX_SCHED_TSTAMP | SKBTX_BPF)))
4785:			__skb_tstamp_tx(skb, NULL, NULL, skb->sk, SCM_TSTAMP_SCHED);
4786:	
4787:		reason = qdisc_pkt_len_segs_init(skb);
4788:		if (unlikely(reason)) {
4789:			dev_core_stats_tx_dropped_inc(dev);
4790:			kfree_skb_reason(skb, reason);
4791:			return -EINVAL;
4792:		}
4793:		/* Disable soft irqs for various locks below. Also
4794:		 * stops preemption for RCU.
4795:		 */
4796:		rcu_read_lock_bh();
4797:	
4798:		skb_update_prio(skb);
4799:	
4800:		tcx_set_ingress(skb, false);
4801:	#ifdef CONFIG_NET_EGRESS
4802:		if (static_branch_unlikely(&egress_needed_key)) {
4803:			if (nf_hook_egress_active()) {
4804:				skb = nf_hook_egress(skb, &rc, dev);
4805:				if (!skb)
4806:					goto out;
4807:			}
4808:	
4809:			netdev_xmit_skip_txqueue(false);
4810:	
4811:			nf_skip_egress(skb, true);
4812:			skb = sch_handle_egress(skb, &rc, dev);
4813:			if (!skb)
4814:				goto out;
4815:			nf_skip_egress(skb, false);
4816:	
4817:			if (netdev_xmit_txqueue_skipped())
4818:				txq = netdev_tx_queue_mapping(dev, skb);
4819:		}
4820:	#endif
4821:		/* If device/qdisc don't need skb->dst, release it right now while
4822:		 * its hot in this cpu cache.
4823:		 */
4824:		if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
4825:			skb_dst_drop(skb);
4826:		else
4827:			skb_dst_force(skb);
4828:	
4829:		if (!txq)
4830:			txq = netdev_core_pick_tx(dev, skb, sb_dev);
4831:	
4832:		q = rcu_dereference_bh(txq->qdisc);
4833:	
4834:		trace_net_dev_queue(skb);
4835:		if (q->enqueue) {
4836:			rc = __dev_xmit_skb(skb, q, dev, txq);
4837:			goto out;
4838:		}
4839:	
4840:		/* The device has no queue. Common case for software devices:
4841:		 * loopback, all the sorts of tunnels...
4842:	
4843:		 * Really, it is unlikely that netif_tx_lock protection is necessary
4844:		 * here.  (f.e. loopback and IP tunnels are clean ignoring statistics
4845:		 * counters.)
4846:		 * However, it is possible, that they rely on protection
4847:		 * made by us here.
4848:	
4849:		 * Check this and shot the lock. It is not prone from deadlocks.
4850:		 *Either shot noqueue qdisc, it is even simpler 8)
4851:		 */
4852:		if (unlikely(!(dev->flags & IFF_UP))) {
4853:			reason = SKB_DROP_REASON_DEV_READY;
4854:			goto drop;
4855:		}
4856:	
4857:		cpu = smp_processor_id(); /* ok because BHs are off */
4858:	
4859:		if (likely(!netif_tx_owned(txq, cpu))) {
4860:			bool is_list = false;
4861:	
4862:			if (dev_xmit_recursion())
4863:				goto recursion_alert;
4864:	
4865:			skb = validate_xmit_skb(skb, dev, &again);
4866:			if (IS_ERR_OR_NULL(skb)) {
4867:				if (PTR_ERR(skb) == -EINPROGRESS)
4868:					rc = NET_XMIT_SUCCESS;
4869:				goto out;
4870:			}
4871:	
4872:			HARD_TX_LOCK(dev, txq, cpu);
4873:	
4874:			if (!netif_xmit_stopped(txq)) {
4875:				is_list = !!skb->next;
4876:	
4877:				dev_xmit_recursion_inc();
4878:				skb = dev_hard_start_xmit(skb, dev, txq, &rc);
4879:				dev_xmit_recursion_dec();
4880:	
4881:				/* GSO segments a single SKB into a list of frames.
4882:				 * TCP expects error to mean none of the data was sent.
4883:				 */
4884:				if (is_list)
4885:					rc = NETDEV_TX_OK;
4886:			}
4887:			HARD_TX_UNLOCK(dev, txq);
4888:			if (!skb) /* xmit completed */
4889:				goto out;
4890:	
4891:			net_crit_ratelimited("Virtual device %s asks to queue packet!\n",
4892:					     dev->name);
4893:			/* NETDEV_TX_BUSY or queue was stopped */
4894:			if (!is_list)
4895:				rc = -ENETDOWN;
4896:		} else {
4897:			/* Recursion is detected! It is possible unfortunately. */
4898:	recursion_alert:
4899:			net_crit_ratelimited("Dead loop on virtual device %s (net %llu), fix it urgently!\n",
4900:					     dev->name, dev_net(dev)->net_cookie);
4901:	
4902:			rc = -ENETDOWN;
4903:		}
4904:	
4905:		reason = SKB_DROP_REASON_RECURSION_LIMIT;
4906:	drop:
4907:		rcu_read_unlock_bh();
4908:	
4909:		dev_core_stats_tx_dropped_inc(dev);
4910:		kfree_skb_list_reason(skb, reason);
4911:		return rc;
4912:	out:
4913:		rcu_read_unlock_bh();
4914:		return rc;
4915:	}
 SourceFile:net/core/dev.c]

102/4 2026/08/15 17:45 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 27114
							output: 39
							thoughts: 163
						

Thoughts:
**A Revelation About Packet Transmission and Interface States**

My current line of thinking has led me to a rather startling realization regarding the packet transmission process, specifically concerning the interaction between `__dev_queue_xmit`, queueing disciplines (qdiscs), and the `IFF_UP` interface flag.

Initially, I was examining the logic within `__dev_queue_xmit`. I observed that its primary conditional check before enqueuing an SKB to a qdisc is `if (q->enqueue)`. What struck me as particularly significant, and frankly a little counterintuitive at first, is that this check *does not* incorporate an `IFF_UP` status for the device. My understanding is that the `IFF_UP` check is primarily a safeguard for devices that *don't* utilize a qdisc, such as loopback interfaces or tunnels.

This means that if I were to attach a qdisc to a network device, packets would, in fact, be enqueued to that qdisc even if the interface itself is in a `DOWN` state. This deviates from my initial assumption that an `IFF_UP` status would be a prerequisite for any form of packet enqueuing.

The implication of this is further underscored when I consider what happens next. If the interface is `DOWN` and a packet is enqueued to the qdisc, the subsequent call to `__dev_xmit_skb` will proceed to enqueue the packet. Following this, it will then invoke `qdisc_run`. At this point, I'm compelled to delve deeper into the specifics of `__dev_xmit_skb`'s implementation to fully grasp the consequences of this behavior.


103/4 2026/08/15 17:45 tool codesearch-definition-source
0m Args:
map[ContextFile:net/core/dev.c Name:__dev_xmit_skb]

Results:
map[SourceCode:4185:	static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q,
4186:					 struct net_device *dev,
4187:					 struct netdev_queue *txq)
4188:	{
4189:		struct sk_buff *next, *to_free = NULL, *to_free2 = NULL;
4190:		spinlock_t *root_lock = qdisc_lock(q);
4191:		struct llist_node *ll_list, *first_n;
4192:		unsigned long defer_count = 0;
4193:		int rc;
4194:	
4195:		qdisc_calculate_pkt_len(skb, q);
4196:	
4197:		tcf_set_qdisc_drop_reason(skb, QDISC_DROP_GENERIC);
4198:	
4199:		if (q->flags & TCQ_F_NOLOCK) {
4200:			if (q->flags & TCQ_F_CAN_BYPASS && nolock_qdisc_is_empty(q) &&
4201:			    qdisc_run_begin(q)) {
4202:				/* Retest nolock_qdisc_is_empty() within the protection
4203:				 * of q->seqlock to protect from racing with requeuing.
4204:				 */
4205:				if (unlikely(!nolock_qdisc_is_empty(q))) {
4206:					rc = dev_qdisc_enqueue(skb, q, &to_free, txq);
4207:					__qdisc_run(q);
4208:					to_free2 = qdisc_run_end(q);
4209:	
4210:					goto free_skbs;
4211:				}
4212:	
4213:				qdisc_bstats_cpu_update(q, skb);
4214:				if (sch_direct_xmit(skb, q, dev, txq, NULL, true) &&
4215:				    !nolock_qdisc_is_empty(q))
4216:					__qdisc_run(q);
4217:	
4218:				to_free2 = qdisc_run_end(q);
4219:				rc = NET_XMIT_SUCCESS;
4220:				goto free_skbs;
4221:			}
4222:	
4223:			rc = dev_qdisc_enqueue(skb, q, &to_free, txq);
4224:			to_free2 = qdisc_run(q);
4225:			goto free_skbs;
4226:		}
4227:	
4228:		/* Open code llist_add(&skb->ll_node, &q->defer_list) + queue limit.
4229:		 * In the try_cmpxchg() loop, we want to increment q->defer_count
4230:		 * at most once to limit the number of skbs in defer_list.
4231:		 * We perform the defer_count increment only if the list is not empty,
4232:		 * because some arches have slow atomic_long_inc_return().
4233:		 */
4234:		first_n = READ_ONCE(q->defer_list.first);
4235:		do {
4236:			if (first_n && !defer_count) {
4237:				defer_count = atomic_long_inc_return(&q->defer_count);
4238:				if (unlikely(defer_count > READ_ONCE(net_hotdata.qdisc_max_burst))) {
4239:					kfree_skb_reason(skb, SKB_DROP_REASON_QDISC_BURST_DROP);
4240:					return NET_XMIT_DROP;
4241:				}
4242:			}
4243:			skb->ll_node.next = first_n;
4244:		} while (!try_cmpxchg(&q->defer_list.first, &first_n, &skb->ll_node));
4245:	
4246:		/* If defer_list was not empty, we know the cpu which queued
4247:		 * the first skb will process the whole list for us.
4248:		 */
4249:		if (first_n)
4250:			return NET_XMIT_SUCCESS;
4251:	
4252:		spin_lock(root_lock);
4253:	
4254:		ll_list = llist_del_all(&q->defer_list);
4255:		/* There is a small race because we clear defer_count not atomically
4256:		 * with the prior llist_del_all(). This means defer_list could grow
4257:		 * over qdisc_max_burst.
4258:		 */
4259:		atomic_long_set(&q->defer_count, 0);
4260:	
4261:		ll_list = llist_reverse_order(ll_list);
4262:	
4263:		if (unlikely(test_bit(__QDISC_STATE_DEACTIVATED, &q->state))) {
4264:			llist_for_each_entry_safe(skb, next, ll_list, ll_node)
4265:				__qdisc_drop(skb, &to_free);
4266:			rc = NET_XMIT_DROP;
4267:			goto unlock;
4268:		}
4269:		if ((q->flags & TCQ_F_CAN_BYPASS) && !qdisc_qlen(q) &&
4270:		    !llist_next(ll_list) && qdisc_run_begin(q)) {
4271:			/*
4272:			 * This is a work-conserving queue; there are no old skbs
4273:			 * waiting to be sent out; and the qdisc is not running -
4274:			 * xmit the skb directly.
4275:			 */
4276:	
4277:			DEBUG_NET_WARN_ON_ONCE(skb != llist_entry(ll_list,
4278:								  struct sk_buff,
4279:								  ll_node));
4280:			qdisc_bstats_update(q, skb);
4281:			if (sch_direct_xmit(skb, q, dev, txq, root_lock, true))
4282:				__qdisc_run(q);
4283:			to_free2 = qdisc_run_end(q);
4284:			rc = NET_XMIT_SUCCESS;
4285:		} else {
4286:			int count = 0;
4287:	
4288:			llist_for_each_entry_safe(skb, next, ll_list, ll_node) {
4289:				if (next) {
4290:					prefetch(next);
4291:					prefetch(&next->priority);
4292:					skb_mark_not_on_list(skb);
4293:				}
4294:				rc = dev_qdisc_enqueue(skb, q, &to_free, txq);
4295:				count++;
4296:			}
4297:			to_free2 = qdisc_run(q);
4298:			if (count != 1)
4299:				rc = NET_XMIT_SUCCESS;
4300:		}
4301:	unlock:
4302:		spin_unlock(root_lock);
4303:	
4304:	free_skbs:
4305:		tcf_kfree_skb_list(to_free, q, txq, dev);
4306:		tcf_kfree_skb_list(to_free2, q, txq, dev);
4307:		return rc;
4308:	}
 SourceFile:net/core/dev.c]

104/4 2026/08/15 17:45 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 29472
							output: 38
							thoughts: 252
						

Thoughts:
**My Thought Process Regarding Packet Queueing Behavior**

Okay, so I'm trying to figure out how to make packets stick around in a queue rather than being immediately transmitted. My initial thought process went something like this:

First, I was looking at the `sch_direct_xmit` function. I noted that if it's called, it subsequently calls `dev_hard_start_xmit`, which in turn calls `dummy_xmit`. My immediate observation here was that `dummy_xmit` simply drops the packet. That's definitely *not* what I want if I'm aiming to keep packets in the queue.

Then, I remembered the condition under which `sch_direct_xmit` is actually invoked: it's called if `qdisc_run_begin(q)` succeeds. This gives me a potential lever. Could I manipulate the state so that `qdisc_run_begin` fails, or perhaps prevent the subsequent transmission path from being taken?

My next idea was about interface flags. I considered if simply using `IFF_UP` but then turning the carrier OFF might achieve the desired effect. My reasoning was that if the carrier is OFF, perhaps `netif_xmit_stopped` would become true, effectively halting transmission. However, I quickly realized a flaw in this specific approach: the `dummy` interface, which is often used for these kinds of simulations or test scenarios, completely disregards the carrier state. So, that particular avenue is a dead end for the `dummy` interface.

Then I shifted focus to the queuing discipline (qdisc) itself. I thought about using `tc_sfq_qopt` with a `limit` of, say, 1000. My initial assumption was that if I just send packets, they'd be held within that limit. But then I had to remind myself of how `qdisc_run` operates. If packets are present and the qdisc is capable, `qdisc_run` will, by its nature, dequeue them as quickly as possible. So, a simple limit on SFQ wouldn't inherently prevent immediate dequeueing.

This led me to consider the nature of the qdisc itself. I recalled that some qdiscs are "work-conserving," meaning they'll always try to transmit if there's data and an available device. `drr` (Deficit Round Robin) falls into this category. It will, indeed, dequeue packets as fast as it can. Therefore, to keep packets waiting, I need a qdisc that is *not* work-conserving.

This is where I started thinking about queuing disciplines that introduce delays or rate limiting. My mind immediately went to `tbf` (Token Bucket Filter) or `netem` (Network Emulator). These are designed to control the flow of traffic, and inherently introduce latency or buffer packets if the rate is exceeded.

Finally, I considered `netem` specifically. It struck me as being particularly straightforward to configure for this purpose. It's often used for simulating network conditions, and one of its key features is the ability to introduce delays and packet loss, but also to hold packets if conditions aren't met. This seemed like a very promising avenue. My next step, naturally, was to dive into the `netem_change` function to see exactly how I could implement this.


105/4 2026/08/15 17:45 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_netem.c Name:netem_change]

Results:
map[SourceCode:1043:	/* Parse netlink message to set options */
1044:	static int netem_change(struct Qdisc *sch, struct nlattr *opt,
1045:				struct netlink_ext_ack *extack)
1046:	{
1047:		struct netem_sched_data *q = qdisc_priv(sch);
1048:		struct nlattr *tb[TCA_NETEM_MAX + 1];
1049:		struct disttable *delay_dist = NULL;
1050:		struct disttable *slot_dist = NULL;
1051:		struct tc_netem_qopt *qopt;
1052:		struct clgstate old_clg;
1053:		int old_loss_model = CLG_RANDOM;
1054:		int ret;
1055:	
1056:		qopt = nla_data(opt);
1057:		ret = parse_attr(tb, TCA_NETEM_MAX, opt, netem_policy, sizeof(*qopt), extack);
1058:		if (ret < 0)
1059:			return ret;
1060:	
1061:		if (tb[TCA_NETEM_DELAY_DIST]) {
1062:			ret = get_dist_table(&delay_dist, tb[TCA_NETEM_DELAY_DIST]);
1063:			if (ret)
1064:				goto table_free;
1065:		}
1066:	
1067:		if (tb[TCA_NETEM_SLOT_DIST]) {
1068:			ret = get_dist_table(&slot_dist, tb[TCA_NETEM_SLOT_DIST]);
1069:			if (ret)
1070:				goto table_free;
1071:		}
1072:	
1073:		if (tb[TCA_NETEM_SLOT]) {
1074:			ret = validate_slot(tb[TCA_NETEM_SLOT], extack);
1075:			if (ret)
1076:				goto table_free;
1077:		}
1078:	
1079:		if (tb[TCA_NETEM_LATENCY64]) {
1080:			ret = validate_time(tb[TCA_NETEM_LATENCY64], "latency", extack);
1081:			if (ret)
1082:				goto table_free;
1083:		}
1084:	
1085:		if (tb[TCA_NETEM_JITTER64]) {
1086:			ret = validate_time(tb[TCA_NETEM_JITTER64], "jitter", extack);
1087:			if (ret)
1088:				goto table_free;
1089:		}
1090:	
1091:		sch_tree_lock(sch);
1092:		/* backup q->clg and q->loss_model */
1093:		old_clg = q->clg;
1094:		old_loss_model = q->loss_model;
1095:	
1096:		if (tb[TCA_NETEM_LOSS]) {
1097:			ret = get_loss_clg(q, tb[TCA_NETEM_LOSS], extack);
1098:			if (ret) {
1099:				q->loss_model = old_loss_model;
1100:				q->clg = old_clg;
1101:				goto unlock;
1102:			}
1103:		} else {
1104:			q->loss_model = CLG_RANDOM;
1105:		}
1106:	
1107:		if (delay_dist)
1108:			swap(q->delay_dist, delay_dist);
1109:		if (slot_dist)
1110:			swap(q->slot_dist, slot_dist);
1111:		sch->limit = qopt->limit;
1112:	
1113:		q->latency = PSCHED_TICKS2NS(qopt->latency);
1114:		q->jitter = PSCHED_TICKS2NS(qopt->jitter);
1115:		q->limit = qopt->limit;
1116:		q->gap = qopt->gap;
1117:		q->counter = 0;
1118:		q->loss = qopt->loss;
1119:		q->duplicate = qopt->duplicate;
1120:	
1121:		/* for compatibility with earlier versions.
1122:		 * if gap is set, need to assume 100% probability
1123:		 */
1124:		if (q->gap)
1125:			q->reorder = ~0;
1126:	
1127:		if (tb[TCA_NETEM_CORR])
1128:			get_correlation(q, tb[TCA_NETEM_CORR]);
1129:	
1130:		if (tb[TCA_NETEM_REORDER])
1131:			get_reorder(q, tb[TCA_NETEM_REORDER]);
1132:	
1133:		if (tb[TCA_NETEM_CORRUPT])
1134:			get_corrupt(q, tb[TCA_NETEM_CORRUPT]);
1135:	
1136:		if (tb[TCA_NETEM_RATE])
1137:			get_rate(q, tb[TCA_NETEM_RATE]);
1138:	
1139:		if (tb[TCA_NETEM_RATE64])
1140:			q->rate = max_t(u64, q->rate,
1141:					nla_get_u64(tb[TCA_NETEM_RATE64]));
1142:	
1143:		if (tb[TCA_NETEM_LATENCY64])
1144:			q->latency = nla_get_s64(tb[TCA_NETEM_LATENCY64]);
1145:	
1146:		if (tb[TCA_NETEM_JITTER64])
1147:			q->jitter = nla_get_s64(tb[TCA_NETEM_JITTER64]);
1148:	
1149:		if (tb[TCA_NETEM_ECN])
1150:			q->ecn = nla_get_u32(tb[TCA_NETEM_ECN]);
1151:	
1152:		if (tb[TCA_NETEM_SLOT])
1153:			get_slot(q, tb[TCA_NETEM_SLOT]);
1154:	
1155:		/* capping jitter to the range acceptable by tabledist() */
1156:		q->jitter = min_t(s64, abs(q->jitter), INT_MAX);
1157:	
1158:		if (tb[TCA_NETEM_PRNG_SEED]) {
1159:			q->prng.seed = nla_get_u64(tb[TCA_NETEM_PRNG_SEED]);
1160:			prandom_seed_state(&q->prng.prng_state, q->prng.seed);
1161:		}
1162:	
1163:	unlock:
1164:		sch_tree_unlock(sch);
1165:	
1166:	table_free:
1167:		dist_free(delay_dist);
1168:		dist_free(slot_dist);
1169:		return ret;
1170:	}
 SourceFile:net/sched/sch_netem.c]

106/4 2026/08/15 17:45 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 31847
							output: 38
							thoughts: 45
						

Thoughts:
**My Thought Process Regarding `netem` and `sfq`**

Okay, I'm looking at this `netem` setup, and my first instinct is that it's a bit of a dead end if I want to apply something like `sfq` directly. My immediate understanding is that `netem` itself is fundamentally *classless*. This means I can't directly attach a queuing discipline like `sfq` to it, because `sfq` relies on the concept of classes to distribute traffic. It needs something to classify the packets *before* it can apply its per-class fairness mechanisms.

But then I pause, and a new thought emerges. I remember that `netem`, while classless at its core for the *classification* of traffic into its own sub-queues, *can* actually have a child queuing discipline. This isn't about `netem` itself *being* classified, but rather about `netem` acting as a parent that can *contain* another qdisc. This is a crucial distinction. It means the traffic that `netem` *manages* – the traffic that has been subjected to its latency, loss, or corruption – can then be passed down to a subsequent qdisc.

So, my next step, my immediate impulse to verify this hypothesis, is to dive into the code, specifically looking at the `netem_init` function. I need to see how `netem` is initialized and, more importantly, how it handles the attachment of child qdiscs. This will confirm whether my current understanding is correct and whether there's a pathway to integrate `sfq` in a hierarchical fashion, even if `netem` doesn't inherently classify traffic in the way `sfq` expects. I'm looking for the mechanisms that allow `netem` to delegate the actual queuing and scheduling of its output to another discipline.


107/4 2026/08/15 17:45 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_netem.c Name:netem_init]

Results:
map[SourceCode:1172:	static int netem_init(struct Qdisc *sch, struct nlattr *opt,
1173:			      struct netlink_ext_ack *extack)
1174:	{
1175:		struct netem_sched_data *q = qdisc_priv(sch);
1176:	
1177:		qdisc_watchdog_init(&q->watchdog, sch);
1178:	
1179:		if (!opt)
1180:			return -EINVAL;
1181:	
1182:		q->loss_model = CLG_RANDOM;
1183:		q->prng.seed = get_random_u64();
1184:		prandom_seed_state(&q->prng.prng_state, q->prng.seed);
1185:	
1186:		return netem_change(sch, opt, extack);
1187:	}
 SourceFile:net/sched/sch_netem.c]

108/4 2026/08/15 17:45 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 32193
							output: 38
							thoughts: 42
						

Thoughts:
**My Internal Monologue on Netem's Queueing Behavior**

Right, so I'm digging into `netem`'s implementation, and a thought just struck me: does `netem` actually set up its own child qdisc by default when it's instantiated? That feels a bit off, given how it's supposed to be a classifier and then potentially apply its own queuing disciplines. I distinctly remember it working with `q->qdisc`, which implies it *does* have a reference to another qdisc. This is a crucial point for understanding the flow of packets and how the network emulation is layered. My next step is to dive into the `netem_enqueue` function itself. I need to trace how a packet actually enters the `netem` qdisc and what happens to that `q->qdisc` pointer. Is it pointing to some generic FIFO, or is it expecting a specific type of child qdisc to be attached? This will clarify whether `netem` *needs* a pre-configured child or if it handles that internally.


109/4 2026/08/15 17:45 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_netem.c Name:netem_enqueue]

Results:
map[SourceCode: 453:	/*
 454:	 * Insert one skb into qdisc.
 455:	 * Note: parent depends on return value to account for queue length.
 456:	 * 	NET_XMIT_DROP: queue length didn't change.
 457:	 *      NET_XMIT_SUCCESS: one skb was queued.
 458:	 */
 459:	static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 460:				 struct sk_buff **to_free)
 461:	{
 462:		struct netem_sched_data *q = qdisc_priv(sch);
 463:		/* We don't fill cb now as skb_unshare() may invalidate it */
 464:		struct netem_skb_cb *cb;
 465:		struct sk_buff *skb2 = NULL;
 466:		struct sk_buff *segs = NULL;
 467:		unsigned int prev_len = qdisc_pkt_len(skb);
 468:		int count = 1;
 469:	
 470:		/* Do not fool qdisc_drop_all() */
 471:		skb->prev = NULL;
 472:	
 473:		/* Random duplication */
 474:		if (q->duplicate && skb->tc_depth == 0 &&
 475:		    q->duplicate >= get_crandom(&q->dup_cor, &q->prng)) {
 476:			++count;
 477:			WRITE_ONCE(q->duplicated, q->duplicated + 1);
 478:		}
 479:	
 480:		/* Drop packet? */
 481:		if (loss_event(q)) {
 482:			if (q->ecn && INET_ECN_set_ce(skb)) {
 483:				WRITE_ONCE(q->ecn_marked, q->ecn_marked + 1);
 484:			} else {
 485:				WRITE_ONCE(q->dropped, q->dropped + 1);
 486:				--count;
 487:			}
 488:		}
 489:	
 490:		if (count == 0) {
 491:			qdisc_qstats_drop(sch);
 492:			__qdisc_drop(skb, to_free);
 493:			return NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
 494:		}
 495:	
 496:		/* If a delay is expected, orphan the skb. (orphaning usually takes
 497:		 * place at TX completion time, so _before_ the link transit delay)
 498:		 */
 499:		if (q->latency || q->jitter || q->rate)
 500:			skb_orphan_partial(skb);
 501:	
 502:		/*
 503:		 * If we need to duplicate packet, then clone it before
 504:		 * original is modified.
 505:		 */
 506:		if (count > 1) {
 507:			skb2 = skb_clone(skb, GFP_ATOMIC);
 508:			if (!skb2)
 509:				WRITE_ONCE(q->allocation_errors, q->allocation_errors + 1);
 510:		}
 511:	
 512:		/*
 513:		 * Randomized packet corruption.
 514:		 * Make copy if needed since we are modifying
 515:		 * If packet is going to be hardware checksummed, then
 516:		 * do it now in software before we mangle it.
 517:		 */
 518:		if (q->corrupt && q->corrupt >= get_crandom(&q->corrupt_cor, &q->prng)) {
 519:			if (skb_is_gso(skb)) {
 520:				skb = netem_segment(skb, sch, to_free);
 521:				if (!skb) {
 522:					WRITE_ONCE(q->allocation_errors, q->allocation_errors + 1);
 523:					goto finish_segs;
 524:				}
 525:	
 526:				segs = skb->next;
 527:				skb_mark_not_on_list(skb);
 528:				qdisc_skb_cb(skb)->pkt_len = skb->len;
 529:			}
 530:	
 531:			skb = skb_unshare(skb, GFP_ATOMIC);
 532:			if (unlikely(!skb)) {
 533:				WRITE_ONCE(q->allocation_errors, q->allocation_errors + 1);
 534:				qdisc_qstats_drop(sch);
 535:				goto finish_segs;
 536:			}
 537:			if (skb_linearize(skb) ||
 538:			    (skb->ip_summed == CHECKSUM_PARTIAL && skb_checksum_help(skb))) {
 539:				WRITE_ONCE(q->allocation_errors, q->allocation_errors + 1);
 540:				qdisc_drop(skb, sch, to_free);
 541:				skb = NULL;
 542:				goto finish_segs;
 543:			}
 544:	
 545:			if (skb->len) {
 546:				u32 offset = get_random_u32_below(skb->len);
 547:				skb->data[offset] ^= 1 << get_random_u32_below(8);
 548:				WRITE_ONCE(q->corrupted, q->corrupted + 1);
 549:			}
 550:		}
 551:	
 552:		if (unlikely(sch->q.qlen >= sch->limit)) {
 553:			/* re-link segs, so that qdisc_drop_all() frees them all */
 554:			skb->next = segs;
 555:			qdisc_drop_all(skb, sch, to_free);
 556:			if (skb2)
 557:				__qdisc_drop(skb2, to_free);
 558:			return NET_XMIT_DROP;
 559:		}
 560:	
 561:		/*
 562:		 * If doing duplication then re-insert at top of the
 563:		 * qdisc tree, since parent queuer expects that only one
 564:		 * skb will be queued.
 565:		 */
 566:		if (skb2) {
 567:			struct Qdisc *rootq = qdisc_root_bh(sch);
 568:	
 569:			skb2->tc_depth++; /* prevent duplicating a dup... */
 570:			rootq->enqueue(skb2, rootq, to_free);
 571:			skb2 = NULL;
 572:		}
 573:	
 574:		qdisc_qstats_backlog_inc(sch, skb);
 575:	
 576:		cb = netem_skb_cb(skb);
 577:		if (q->gap == 0 ||		/* not doing reordering */
 578:		    q->counter < q->gap - 1 ||	/* inside last reordering gap */
 579:		    q->reorder < get_crandom(&q->reorder_cor, &q->prng)) {
 580:			u64 now;
 581:			s64 delay;
 582:	
 583:			delay = tabledist(q->latency, q->jitter,
 584:					  &q->delay_cor, &q->prng, q->delay_dist);
 585:	
 586:			now = ktime_get_ns();
 587:	
 588:			if (q->rate) {
 589:				struct netem_skb_cb *last = NULL;
 590:	
 591:				if (sch->q.tail)
 592:					last = netem_skb_cb(sch->q.tail);
 593:				if (q->t_root.rb_node) {
 594:					struct sk_buff *t_skb;
 595:					struct netem_skb_cb *t_last;
 596:	
 597:					t_skb = skb_rb_last(&q->t_root);
 598:					t_last = netem_skb_cb(t_skb);
 599:					if (!last ||
 600:					    t_last->time_to_send > last->time_to_send)
 601:						last = t_last;
 602:				}
 603:				if (q->t_tail) {
 604:					struct netem_skb_cb *t_last =
 605:						netem_skb_cb(q->t_tail);
 606:	
 607:					if (!last ||
 608:					    t_last->time_to_send > last->time_to_send)
 609:						last = t_last;
 610:				}
 611:	
 612:				if (last) {
 613:					/*
 614:					 * Last packet in queue is reference point (now),
 615:					 * calculate this time bonus and subtract
 616:					 * from delay.
 617:					 */
 618:					delay -= last->time_to_send - now;
 619:					delay = max_t(s64, 0, delay);
 620:					now = last->time_to_send;
 621:				}
 622:	
 623:				delay += packet_time_ns(qdisc_pkt_len(skb), q);
 624:			}
 625:	
 626:			cb->time_to_send = now + delay;
 627:			++q->counter;
 628:			if (delay)
 629:				WRITE_ONCE(q->delayed, q->delayed + 1);
 630:	
 631:			tfifo_enqueue(skb, sch);
 632:		} else {
 633:			/*
 634:			 * Do re-ordering by putting one out of N packets at the front
 635:			 * of the queue.
 636:			 */
 637:			WRITE_ONCE(q->reordered, q->reordered + 1);
 638:			cb->time_to_send = ktime_get_ns();
 639:			q->counter = 0;
 640:	
 641:			__qdisc_enqueue_head(skb, &sch->q);
 642:			sch->qstats.requeues++;
 643:		}
 644:	
 645:	finish_segs:
 646:		if (skb2)
 647:			__qdisc_drop(skb2, to_free);
 648:	
 649:		if (segs) {
 650:			unsigned int len, last_len;
 651:			int rc, nb;
 652:	
 653:			len = skb ? skb->len : 0;
 654:			nb = skb ? 1 : 0;
 655:	
 656:			while (segs) {
 657:				skb2 = segs->next;
 658:				skb_mark_not_on_list(segs);
 659:				qdisc_skb_cb(segs)->pkt_len = segs->len;
 660:				last_len = segs->len;
 661:				rc = qdisc_enqueue(segs, sch, to_free);
 662:				if (rc != NET_XMIT_SUCCESS) {
 663:					if (net_xmit_drop_count(rc))
 664:						qdisc_qstats_drop(sch);
 665:				} else {
 666:					nb++;
 667:					len += last_len;
 668:				}
 669:				segs = skb2;
 670:			}
 671:			/* Parent qdiscs accounted for 1 skb of size @prev_len */
 672:			qdisc_tree_reduce_backlog(sch, -(nb - 1), -(len - prev_len));
 673:		} else if (!skb) {
 674:			return NET_XMIT_DROP;
 675:		}
 676:		return NET_XMIT_SUCCESS;
 677:	}
 SourceFile:net/sched/sch_netem.c]

110/4 2026/08/15 17:45 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 35808
							output: 38
							thoughts: 69
						

Thoughts:
**A Deep Dive into `netem`'s Enqueueing Mechanism**

Okay, so my initial thought process regarding `netem`'s packet handling was a bit off. I was initially thinking it simply queues packets, perhaps using an internal data structure like an RB-tree or a FIFO, and that this was the *entire* story. The assumption was that it was a standalone queue, not interacting with any underlying child queuing disciplines.

Then, a moment of doubt crept in. I questioned whether `netem` *actually* had a child qdisc at all. This stemmed from the idea that it was primarily a packet *modification* tool (latency, loss, corruption, etc.), and perhaps it just injected these modified packets directly into the network stack without needing further queuing.

But then I remembered, or rather, I found myself realizing, that `netem` *does* indeed have a concept of a child qdisc. My mind immediately went to the `q->qdisc` pointer. This is a crucial detail because it signifies that `netem` isn't operating in isolation. It *does* have a subordinate queuing discipline that it interacts with.

This realization leads me directly to the next logical step in my investigation: examining the `netem_dequeue` function. If `netem` has a child qdisc, then `netem_dequeue` is the prime candidate for understanding *how* `netem` interacts with that child, how it pulls packets from its own internal holding area (if any), applies its modifications, and then ultimately hands them off to the child qdisc for further processing or transmission. It's the point where the "netem" magic happens in terms of releasing packets back into the flow.


111/4 2026/08/15 17:45 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_netem.c Name:netem_dequeue]

Results:
map[SourceCode: 729:	static struct sk_buff *netem_dequeue(struct Qdisc *sch)
 730:	{
 731:		struct netem_sched_data *q = qdisc_priv(sch);
 732:		struct sk_buff *skb;
 733:	
 734:	tfifo_dequeue:
 735:		skb = __qdisc_dequeue_head(&sch->q);
 736:		if (skb) {
 737:	deliver:
 738:			qdisc_qstats_backlog_dec(sch, skb);
 739:			qdisc_bstats_update(sch, skb);
 740:			return skb;
 741:		}
 742:		skb = netem_peek(q);
 743:		if (skb) {
 744:			u64 time_to_send;
 745:			u64 now = ktime_get_ns();
 746:	
 747:			/* if more time remaining? */
 748:			time_to_send = netem_skb_cb(skb)->time_to_send;
 749:			if (q->slot.slot_next && q->slot.slot_next < time_to_send)
 750:				get_slot_next(q, now);
 751:	
 752:			if (time_to_send <= now && q->slot.slot_next <= now) {
 753:				netem_erase_head(q, skb);
 754:				q->t_len--;
 755:				skb->next = NULL;
 756:				skb->prev = NULL;
 757:				/* skb->dev shares skb->rbnode area,
 758:				 * we need to restore its value.
 759:				 */
 760:				skb->dev = qdisc_dev(sch);
 761:	
 762:				if (q->slot.slot_next) {
 763:					q->slot.packets_left--;
 764:					q->slot.bytes_left -= qdisc_pkt_len(skb);
 765:					if (q->slot.packets_left <= 0 ||
 766:					    q->slot.bytes_left <= 0)
 767:						get_slot_next(q, now);
 768:				}
 769:	
 770:				if (q->qdisc) {
 771:					unsigned int pkt_len = qdisc_pkt_len(skb);
 772:					struct sk_buff *to_free = NULL;
 773:					int err;
 774:	
 775:					err = qdisc_enqueue(skb, q->qdisc, &to_free);
 776:					kfree_skb_list(to_free);
 777:					if (err != NET_XMIT_SUCCESS) {
 778:						if (net_xmit_drop_count(err))
 779:							qdisc_qstats_drop(sch);
 780:						qstats_backlog_sub(sch, pkt_len);
 781:						qdisc_qlen_dec(sch);
 782:						qdisc_tree_reduce_backlog(sch, 1, pkt_len);
 783:					}
 784:					goto tfifo_dequeue;
 785:				}
 786:				qdisc_qlen_dec(sch);
 787:				goto deliver;
 788:			}
 789:	
 790:			if (q->qdisc) {
 791:				skb = q->qdisc->ops->dequeue(q->qdisc);
 792:				if (skb) {
 793:					qdisc_qlen_dec(sch);
 794:					goto deliver;
 795:				}
 796:			}
 797:	
 798:			qdisc_watchdog_schedule_ns(&q->watchdog,
 799:						   max(time_to_send,
 800:						       q->slot.slot_next));
 801:		}
 802:	
 803:		if (q->qdisc) {
 804:			skb = q->qdisc->ops->dequeue(q->qdisc);
 805:			if (skb) {
 806:				qdisc_qlen_dec(sch);
 807:				goto deliver;
 808:			}
 809:		}
 810:		return NULL;
 811:	}
 SourceFile:net/sched/sch_netem.c]

112/4 2026/08/15 17:45 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 37175
							output: 38
							thoughts: 411
						

Thoughts:
**My Thought Process on Network Queuing and Delaying `qdisc_destroy`**

My initial realization was about how `netem` operates: it enqueues packets back into its own queue (`q->qdisc`) *after* dequeuing them from its managed queue. This is crucial because it implies that a child qdisc like `sfq` (Stochastic Fairness Queuing) wouldn't actually hold any packets while `netem` is active. `sfq` would be effectively empty because packets only reach it *after* `netem` has processed them.

This led me to consider alternatives for achieving a desired delay or preventing immediate destruction. I thought, "What if I just use `prio` (Priority Queuing)?" With `prio`, packets are enqueued to its child qdiscs, like `sfq`. Then, the `qdisc_run` mechanism would immediately dequeue them. However, I quickly saw a flaw in this simple approach. If I were to send a burst of packets in a loop, they would be enqueued and dequeued in rapid succession. This wouldn't create a sustained backlog. But then it hit me: if I had another thread continuously sending packets, the `sfq` queue *wouldn't* be empty. Yes, that's it! A continuously running thread sending packets would keep `sfq` populated. And I could use `prio` as the root qdisc.

A new concern arose: `prio` only supports 16 bands. Would 16 bands be sufficient to delay `qdisc_destroy`? My understanding is that `qdisc_destroy` recursively destroys all children. If there are only 16 child qdiscs, this destruction process would be quite fast. So, `prio` alone might not be the solution if I need a significant delay for destruction.

I then thought about `drr` (Deficit Round Robin) as a potential alternative. With `drr`, I could create a much larger number of classes – say, 500. This would give me more granular control and potentially more entities to manage. But the question became: if I use `drr` with 500 classes, how do I ensure packets land in a class that has `sfq` attached to it?

My first thought was to use a `tc filter` to direct packets to specific classes. However, a simpler approach came to mind: what if I just attached `sfq` to *all* 500 classes managed by `drr`? If I did that, and then sent packets, they would be distributed to one of these classes. I reasoned that it would likely default to class 0, or I could even use `skb->priority` to influence which class they landed in.

However, I recalled that `drr` doesn't inherently classify based on `skb->priority` by default. This prompted me to consider diving into the `drr_enqueue` logic to confirm how it handles packet distribution. This is where I left off in my thought process – needing to verify the exact enqueue behavior of `drr` to ensure my plan of attaching `sfq` to multiple classes and directing packets would work as intended.


113/4 2026/08/15 17:46 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_drr.c Name:drr_enqueue]

Results:
map[SourceCode: 336:	static int drr_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 337:			       struct sk_buff **to_free)
 338:	{
 339:		unsigned int len = qdisc_pkt_len(skb);
 340:		struct drr_sched *q = qdisc_priv(sch);
 341:		struct drr_class *cl;
 342:		int err = 0;
 343:	
 344:		cl = drr_classify(skb, sch, &err);
 345:		if (cl == NULL) {
 346:			if (err & __NET_XMIT_BYPASS)
 347:				qdisc_qstats_drop(sch);
 348:			__qdisc_drop(skb, to_free);
 349:			return err;
 350:		}
 351:	
 352:		err = qdisc_enqueue(skb, cl->qdisc, to_free);
 353:		if (unlikely(err != NET_XMIT_SUCCESS)) {
 354:			if (net_xmit_drop_count(err)) {
 355:				cl->qstats.drops++;
 356:				qdisc_qstats_drop(sch);
 357:			}
 358:			return err;
 359:		}
 360:	
 361:		if (!cl_is_active(cl)) {
 362:			list_add_tail(&cl->alist, &q->active);
 363:			WRITE_ONCE(cl->deficit, READ_ONCE(cl->quantum));
 364:		}
 365:	
 366:		qstats_backlog_add(sch, len);
 367:		qdisc_qlen_inc(sch);
 368:		return err;
 369:	}
 SourceFile:net/sched/sch_drr.c]

114/4 2026/08/15 17:46 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 38153
							output: 38
							thoughts: 10
						

Thoughts:
**My Thought Process**

Right, so the first thing on my mind, the absolute immediate impulse, is to dive into the `drr_classify` module. That's where the core logic for classification resides, so it's the most logical place to start to understand what's happening. I need to get a feel for the implementation details, the algorithms being employed, the data structures used, and how it's interacting with the broader system. My goal here is to get a clear picture of the classification mechanism itself before I move on to other aspects.


115/4 2026/08/15 17:46 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_drr.c Name:drr_classify]

Results:
map[SourceCode: 298:	static struct drr_class *drr_classify(struct sk_buff *skb, struct Qdisc *sch,
 299:					      int *qerr)
 300:	{
 301:		struct drr_sched *q = qdisc_priv(sch);
 302:		struct drr_class *cl;
 303:		struct tcf_result res;
 304:		struct tcf_proto *fl;
 305:		int result;
 306:	
 307:		if (TC_H_MAJ(skb->priority ^ sch->handle) == 0) {
 308:			cl = drr_find_class(sch, skb->priority);
 309:			if (cl != NULL)
 310:				return cl;
 311:		}
 312:	
 313:		*qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
 314:		fl = rcu_dereference_bh(q->filter_list);
 315:		result = tcf_classify(skb, NULL, fl, &res, false);
 316:		if (result >= 0) {
 317:	#ifdef CONFIG_NET_CLS_ACT
 318:			switch (result) {
 319:			case TC_ACT_QUEUED:
 320:			case TC_ACT_STOLEN:
 321:			case TC_ACT_TRAP:
 322:				*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
 323:				fallthrough;
 324:			case TC_ACT_SHOT:
 325:				return NULL;
 326:			}
 327:	#endif
 328:			cl = (struct drr_class *)res.class;
 329:			if (cl == NULL)
 330:				cl = drr_find_class(sch, res.classid);
 331:			return cl;
 332:		}
 333:		return NULL;
 334:	}
 SourceFile:net/sched/sch_drr.c]

116/4 2026/08/15 17:46 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 38778
							output: 39
							thoughts: 580
						

Thoughts:
**The Race Condition Revelation**

My initial thought process was ignited by the line `TC_H_MAJ(skb->priority ^ sch->handle) == 0`. This immediately told me that if the major handle of the `skb->priority` matches the major handle of the DRR qdisc (`sch`), then the DRR classifier will use the *minor* handle to locate the correct class. This struck me as a powerful realization: I could directly control which DRR class a packet belonged to simply by setting the `skb->priority` field. And how do I set that? The `SO_PRIORITY` socket option!

I then began to trace the logic. If the DRR qdisc has a handle of `1:0` (represented numerically as `0x00010000`) and I want a packet to go to class `1:1` (represented as `0x00010001`), I can achieve this by setting the `SO_PRIORITY` socket option to `0x00010001`. This way, `drr_classify` would correctly identify and select the `1:1` class.

A quick verification of the `SO_PRIORITY` call with `setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio))` confirmed this approach would work.

With this core mechanism in place, I devised a plan to exploit a potential race condition:

1.  **Setup:** I'd create and bring up a dummy network interface.
2.  **DRR Qdisc:** I'd attach a DRR root qdisc with the handle `1:0`.
3.  **DRR Classes:** I'd then create 500 DRR classes, numbered from `1:1` to `1:500`.
4.  **SFQ Qdisc:** Crucially, for class `1:1`, I'd add an SFQ qdisc with a `perturb 1` setting. This SFQ qdisc and its perturbation timer are key to triggering the race.
5.  **Packet Sending Thread:** I'd spawn a separate thread whose sole purpose is to continuously send packets. To ensure these packets land in class `1:1`, I'd set `SO_PRIORITY` to `0x00010001` for each packet.
6.  **Race Trigger:** In the main thread, after a brief pause (e.g., 900ms) to allow the sending thread to populate class `1:1`, I'd initiate the deletion of the root DRR qdisc (`1:0`).
7.  **The Loop:** This entire sequence would be repeated in a loop to continuously trigger the race.

My reasoning for *why* this would trigger a race condition was as follows: When the root qdisc `1:0` is deleted, the `qdisc_destroy` function is invoked. This function, in turn, destroys all its child qdiscs – in this case, all 500 DRR classes. During this destruction process, the `sfq_perturbation` timer, associated with class `1:1`, might fire. If it does, it calls `sfq_rehash`, which then calls `qdisc_tree_reduce_backlog`. At this exact moment, the root qdisc is likely being removed from the qdisc hash table (either within `qdisc_destroy` or `qdisc_graft`). Consequently, `qdisc_lookup_rcu` would return `NULL`, leading to the anticipated warning.

I then started to consider the specifics of `tc qdisc del`, recognizing that it ultimately sends an `RTM_DELQDISC` message, which the kernel processes through functions like `tc_get_qdisc`. This reinforced my understanding of the kernel's qdisc management flow.


117/4 2026/08/15 17:46 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:tc_get_qdisc]

Results:
map[SourceCode:1541:	static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1542:				struct netlink_ext_ack *extack)
1543:	{
1544:		struct net *net = sock_net(skb->sk);
1545:		struct tcmsg *tcm = nlmsg_data(n);
1546:		struct nlattr *tca[TCA_MAX + 1];
1547:		struct net_device *dev;
1548:		int err;
1549:	
1550:		err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,
1551:					     rtm_tca_policy, extack);
1552:		if (err < 0)
1553:			return err;
1554:	
1555:		dev = __dev_get_by_index(net, tcm->tcm_ifindex);
1556:		if (!dev)
1557:			return -ENODEV;
1558:	
1559:		netdev_lock_ops(dev);
1560:		err = __tc_get_qdisc(skb, n, extack, dev, tca, tcm);
1561:		netdev_unlock_ops(dev);
1562:	
1563:		return err;
1564:	}
 SourceFile:net/sched/sch_api.c]

118/4 2026/08/15 17:46 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 39792
							output: 39
							thoughts: 96
						

Thoughts:
**A Deep Dive into TC Netlink Operations**

So, I'm trying to get a handle on these Netlink operations for traffic control queues. My initial thought was that `tc_get_qdisc` was the function for retrieving queueing disciplines, specifically for the `RTM_GETQDISC` message type. That seems straightforward enough.

But then I started thinking about deletion. My first instinct for `RTM_DELQDISC` was to look for a corresponding deletion function, maybe something like `tc_del_qdisc`. However, upon further reflection, I recalled seeing `tc_modify_qdisc`. This led to a moment of doubt: is `tc_modify_qdisc` *only* for modifications, or does it also handle deletions? Could it be the unified function for both adding/replacing and deleting queueing disciplines, i.e., for both `RTM_NEWQDISC` and `RTM_DELQDISC`?

To clarify this, I need to consult the source. The most logical place to confirm this behavior would be within the `sch_api.c` file, specifically looking at the implementation of `rtnetlink_links`. This function is likely the central dispatcher for handling various Netlink requests related to network devices and, by extension, traffic control objects like queueing disciplines. My next step is to dive into that code to definitively understand which function handles which `RTM` message type for queueing disciplines.


119/4 2026/08/15 17:46 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:tc_modify_qdisc]

Results:
map[SourceCode:1796:	/*
1797:	 * Create/change qdisc.
1798:	 */
1799:	static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1800:				   struct netlink_ext_ack *extack)
1801:	{
1802:		struct net *net = sock_net(skb->sk);
1803:		struct nlattr *tca[TCA_MAX + 1];
1804:		struct net_device *dev;
1805:		struct tcmsg *tcm;
1806:		int err;
1807:	
1808:		err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,
1809:					     rtm_tca_policy, extack);
1810:		if (err < 0)
1811:			return err;
1812:	
1813:		request_qdisc_module(tca[TCA_KIND]);
1814:	
1815:		tcm = nlmsg_data(n);
1816:		dev = __dev_get_by_index(net, tcm->tcm_ifindex);
1817:		if (!dev)
1818:			return -ENODEV;
1819:	
1820:		netdev_lock_ops(dev);
1821:		err = __tc_modify_qdisc(skb, n, extack, dev, tca, tcm);
1822:		netdev_unlock_ops(dev);
1823:	
1824:		return err;
1825:	}
 SourceFile:net/sched/sch_api.c]

120/4 2026/08/15 17:46 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 40393
							output: 41
							thoughts: 43
						

Thoughts:
**My Thought Process**

I'm currently reviewing the kernel's traffic control (TC) subsystem, specifically how it handles queueing disciplines (qdiscs). A specific point of curiosity arose: I just encountered a situation where `RTM_DELQDISC` (the netlink message for deleting a qdisc) seems to be processed by the `tc_get_qdisc` function. This is a bit counter-intuitive, as `tc_get_qdisc` sounds like it's for *retrieving* qdisc information, not for *deleting* them. To resolve this, my immediate next step is to dive into the source code. I'll be looking specifically at the `rtnetlink_links` function within the `sch_api.c` file, as this is where the netlink handling for link-related operations, including qdiscs, is likely to be implemented. My goal is to trace the execution path from the `RTM_DELQDISC` message to see exactly how it ends up being handled by a function named `tc_get_qdisc`.


121/4 2026/08/15 17:46 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:rtnl_register.*RTM_DELQDISC PathPrefix:net/sched/sch_api.c]

Results:
map[Output:]

122/4 2026/08/15 17:46 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 40475
							output: 36
							thoughts: 14
						

Thoughts:
**My Thought Process on RTM_DELQDISC**

So, my immediate instinct when encountering a new or unfamiliar concept, especially one as specific as `RTM_DELQDISC`, is to dive into the source code. My first, most direct approach is always to see where this identifier is actually *used*. The quickest way I know to do this, and my go-to method for code exploration, is a simple `grep`. I'll be running `grep RTM_DELQDISC` across the relevant codebase. This isn't about understanding the intricacies of queuing disciplines or network protocols at this stage; it's about establishing a concrete anchor. By finding every instance of `RTM_DELQDISC`, I can begin to map out its context. I'll be looking for:

*   **Where is it defined?** Is it a macro, an enum value, a constant? Knowing its origin will tell me a lot about its intended purpose and scope.
*   **What functions or structures interact with it?** Does it appear as an argument to a function call, a field within a struct, or a case in a switch statement? This will reveal its operational role.
*   **What are the surrounding code blocks doing?** By examining the code immediately before and after each `grep` hit, I can infer the high-level action being performed when `RTM_DELQDISC` is involved. Is it part of message handling, configuration, or error reporting?

Essentially, the `grep` command is my initial reconnaissance. It’s about building a factual foundation, a collection of where and how this term is employed, before I start constructing more abstract interpretations of its meaning or significance. This pragmatic, code-centric approach is how I typically begin to unravel the functionality of any specific identifier or piece of code.


123/4 2026/08/15 17:46 tool grepper
0m Args:
map[Expression:RTM_DELQDISC PathPrefix:net/sched/sch_api.c]

Results:
map[Output:net/sched/sch_api.c=1022=static int qdisc_notify(struct net *net, struct sk_buff *oskb,
--
net/sched/sch_api.c-1038-		if (tc_fill_qdisc(skb, old, clid, portid, n->nlmsg_seq,
net/sched/sch_api.c:1039:				  0, RTM_DELQDISC, extack) < 0)
net/sched/sch_api.c-1040-			goto err_out;
--
net/sched/sch_api.c=1471=static int __tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1522-
net/sched/sch_api.c:1523:	if (n->nlmsg_type == RTM_DELQDISC) {
net/sched/sch_api.c-1524-		if (!clid) {
--
net/sched/sch_api.c=2500=static const struct rtnl_msg_handler psched_rtnl_msg_handlers[] __initconst = {
net/sched/sch_api.c-2501-	{.msgtype = RTM_NEWQDISC, .doit = tc_modify_qdisc},
net/sched/sch_api.c:2502:	{.msgtype = RTM_DELQDISC, .doit = tc_get_qdisc},
net/sched/sch_api.c-2503-	{.msgtype = RTM_GETQDISC, .doit = tc_get_qdisc,
]

124/4 2026/08/15 17:46 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 40941
							output: 40
							thoughts: 47
						

Thoughts:
**My Thought Process on `RTM_DELQDISC` Handling**

My immediate thought upon encountering `RTM_DELQDISC` is to trace its handling within the system. My understanding of the network stack immediately points me towards the `tc_get_qdisc` function as the likely entry point for processing such a request. This is a standard pattern: management operations on traffic control objects, like queueing disciplines (qdiscs), are typically routed through a central retrieval or modification mechanism.

My next step, driven by a need for granular understanding, is to delve into the internals of `tc_get_qdisc`. I anticipate that `tc_get_qdisc` itself might be a wrapper or a higher-level interface, and indeed, I confirm that it delegates the core logic to `__tc_get_qdisc`. This is a common design choice to separate API-level concerns from the more intricate, potentially internal, implementation details. Therefore, my focus shifts sharply to dissecting the functionality and behavior of `__tc_get_qdisc`. I need to understand precisely how it interprets the `RTM_DELQDISC` message, what data it extracts, and what actions it takes to remove the specified queueing discipline from the system.


125/4 2026/08/15 17:46 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:__tc_get_qdisc]

Results:
map[SourceCode:1471:	static int __tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1472:				  struct netlink_ext_ack *extack,
1473:				  struct net_device *dev,
1474:				  struct nlattr *tca[TCA_MAX + 1],
1475:				  struct tcmsg *tcm)
1476:	{
1477:		struct net *net = sock_net(skb->sk);
1478:		struct Qdisc *q = NULL;
1479:		struct Qdisc *p = NULL;
1480:		u32 clid;
1481:		int err;
1482:	
1483:		clid = tcm->tcm_parent;
1484:		if (clid) {
1485:			if (clid != TC_H_ROOT) {
1486:				if (TC_H_MAJ(clid) != TC_H_MAJ(TC_H_INGRESS)) {
1487:					p = qdisc_lookup(dev, TC_H_MAJ(clid));
1488:					if (!p) {
1489:						NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified classid");
1490:						return -ENOENT;
1491:					}
1492:					q = qdisc_leaf(p, clid, extack);
1493:				} else if (dev_ingress_queue(dev)) {
1494:					q = rtnl_dereference(dev_ingress_queue(dev)->qdisc_sleeping);
1495:				}
1496:			} else {
1497:				q = rtnl_dereference(dev->qdisc);
1498:			}
1499:			if (!q) {
1500:				NL_SET_ERR_MSG(extack, "Cannot find specified qdisc on specified device");
1501:				return -ENOENT;
1502:			}
1503:			if (IS_ERR(q))
1504:				return PTR_ERR(q);
1505:	
1506:			if (tcm->tcm_handle && q->handle != tcm->tcm_handle) {
1507:				NL_SET_ERR_MSG(extack, "Invalid handle");
1508:				return -EINVAL;
1509:			}
1510:		} else {
1511:			q = qdisc_lookup(dev, tcm->tcm_handle);
1512:			if (!q) {
1513:				NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified handle");
1514:				return -ENOENT;
1515:			}
1516:		}
1517:	
1518:		if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1519:			NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
1520:			return -EINVAL;
1521:		}
1522:	
1523:		if (n->nlmsg_type == RTM_DELQDISC) {
1524:			if (!clid) {
1525:				NL_SET_ERR_MSG(extack, "Classid cannot be zero");
1526:				return -EINVAL;
1527:			}
1528:			if (q->handle == 0) {
1529:				NL_SET_ERR_MSG(extack, "Cannot delete qdisc with handle of zero");
1530:				return -ENOENT;
1531:			}
1532:			err = qdisc_graft(dev, p, skb, n, clid, NULL, q, extack);
1533:			if (err != 0)
1534:				return err;
1535:		} else {
1536:			qdisc_get_notify(net, skb, n, clid, q, NULL);
1537:		}
1538:		return 0;
1539:	}
 SourceFile:net/sched/sch_api.c]

126/4 2026/08/15 17:46 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 42161
							output: 38
							thoughts: 35
						

Thoughts:
**My Thought Process**

Alright, so I'm looking at this piece of code, and I see a function call: `__tc_get_qdisc`. What immediately catches my eye is that it's invoking `qdisc_graft`. And the interesting part here is the argument being passed for `new` – it's `NULL`. This is a bit of a flag for me. When you're grafting something, you'd expect to be providing the *new* thing you want to graft. Passing `NULL` suggests either a detachment operation or, more likely, an oversight or a specific edge case being handled in a peculiar way.

So, my immediate next step, my primary line of inquiry, is to dive into the `qdisc_graft` function itself. I need to understand the implications of `new` being `NULL`. Does it signify that the intent is to *remove* the existing queueing discipline (qdisc) rather than replace it? Or is there a scenario where `qdisc_graft` can operate meaningfully with a `NULL` new qdisc that I'm not immediately considering? I need to trace the logic within `qdisc_graft` to see how it handles this specific `NULL` case, what state transitions occur, and what the expected outcome is. This will be key to understanding the overall behavior initiated by `__tc_get_qdisc`.


127/4 2026/08/15 17:46 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_graft]

Results:
map[SourceCode:1091:	static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
1092:			       struct sk_buff *skb, struct nlmsghdr *n, u32 classid,
1093:			       struct Qdisc *new, struct Qdisc *old,
1094:			       struct netlink_ext_ack *extack)
1095:	{
1096:		struct Qdisc *q = old;
1097:		struct net *net = dev_net(dev);
1098:	
1099:		if (parent == NULL) {
1100:			unsigned int i, num_q, ingress;
1101:			struct netdev_queue *dev_queue;
1102:	
1103:			ingress = 0;
1104:			num_q = dev->num_tx_queues;
1105:			if ((q && q->flags & TCQ_F_INGRESS) ||
1106:			    (new && new->flags & TCQ_F_INGRESS)) {
1107:				ingress = 1;
1108:				dev_queue = dev_ingress_queue(dev);
1109:				if (!dev_queue) {
1110:					NL_SET_ERR_MSG(extack, "Device does not have an ingress queue");
1111:					return -ENOENT;
1112:				}
1113:	
1114:				q = rtnl_dereference(dev_queue->qdisc_sleeping);
1115:	
1116:				/* This is the counterpart of that qdisc_refcount_inc_nz() call in
1117:				 * __tcf_qdisc_find() for filter requests.
1118:				 */
1119:				if (!qdisc_refcount_dec_if_one(q)) {
1120:					NL_SET_ERR_MSG(extack,
1121:						       "Current ingress or clsact Qdisc has ongoing filter requests");
1122:					return -EBUSY;
1123:				}
1124:			}
1125:	
1126:			if (dev->flags & IFF_UP)
1127:				dev_deactivate(dev, false);
1128:	
1129:			qdisc_offload_graft_root(dev, new, old, extack);
1130:	
1131:			if (new && new->ops->attach && !ingress)
1132:				goto skip;
1133:	
1134:			if (!ingress) {
1135:				for (i = 0; i < num_q; i++) {
1136:					dev_queue = netdev_get_tx_queue(dev, i);
1137:					old = dev_graft_qdisc(dev_queue, new);
1138:	
1139:					if (new && i > 0)
1140:						qdisc_refcount_inc(new);
1141:					qdisc_put(old);
1142:				}
1143:			} else {
1144:				old = dev_graft_qdisc(dev_queue, NULL);
1145:	
1146:				/* {ingress,clsact}_destroy() @old before grafting @new to avoid
1147:				 * unprotected concurrent accesses to net_device::miniq_{in,e}gress
1148:				 * pointer(s) in mini_qdisc_pair_swap().
1149:				 */
1150:				qdisc_notify(net, skb, n, classid, old, new, extack);
1151:				qdisc_destroy(old);
1152:	
1153:				dev_graft_qdisc(dev_queue, new);
1154:			}
1155:	
1156:	skip:
1157:			if (!ingress) {
1158:				old = rtnl_dereference(dev->qdisc);
1159:				if (new && !new->ops->attach)
1160:					qdisc_refcount_inc(new);
1161:				rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
1162:	
1163:				notify_and_destroy(net, skb, n, classid, old, new, extack);
1164:	
1165:				if (new && new->ops->attach)
1166:					new->ops->attach(new);
1167:			}
1168:	
1169:			if (dev->flags & IFF_UP)
1170:				dev_activate(dev);
1171:		} else {
1172:			const struct Qdisc_class_ops *cops = parent->ops->cl_ops;
1173:			unsigned long cl;
1174:			int err;
1175:	
1176:			/* Only support running class lockless if parent is lockless */
1177:			if (new && (new->flags & TCQ_F_NOLOCK) && !(parent->flags & TCQ_F_NOLOCK))
1178:				qdisc_clear_nolock(new);
1179:	
1180:			if (!cops || !cops->graft)
1181:				return -EOPNOTSUPP;
1182:	
1183:			cl = cops->find(parent, classid);
1184:			if (!cl) {
1185:				NL_SET_ERR_MSG(extack, "Specified class not found");
1186:				return -ENOENT;
1187:			}
1188:	
1189:			if (new && new->ops == &noqueue_qdisc_ops) {
1190:				NL_SET_ERR_MSG(extack, "Cannot assign noqueue to a class");
1191:				return -EINVAL;
1192:			}
1193:	
1194:			if (new &&
1195:			    !(parent->flags & TCQ_F_MQROOT) &&
1196:			    rcu_access_pointer(new->stab)) {
1197:				NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
1198:				return -EINVAL;
1199:			}
1200:			err = cops->graft(parent, cl, new, &old, extack);
1201:			if (err)
1202:				return err;
1203:			notify_and_destroy(net, skb, n, classid, old, new, extack);
1204:		}
1205:		return 0;
1206:	}
 SourceFile:net/sched/sch_api.c]

128/4 2026/08/15 17:46 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 44051
							output: 37
							thoughts: 75
						

Thoughts:
**My Thought Process Regarding `notify_and_destroy`**

Okay, so I'm looking at this `notify_and_destroy` function. My initial understanding is that it's designed to handle the notification process for a queueing discipline (qdisc) and then proceed with its destruction. The sequence I'm tracing is straightforward: it first calls `qdisc_notify` and immediately after, it calls `qdisc_destroy`.

Now, when I delve into `qdisc_destroy`, I'm specifically interested in how it cleans up the qdisc's presence in the system. My current read suggests that `qdisc_destroy`'s responsibilities include removing the qdisc from its associated hash table, which is a critical step for de-registration. Following that removal from the hash, it then proceeds to call `qdisc_put`. It's `qdisc_put` that I expect to be the final act of destruction, releasing the qdisc's resources.

Hold on a second. As I re-examine `qdisc_destroy`, a point of clarification arises. I'm realizing that the removal from the hash table *is* an action performed *within* `qdisc_destroy` itself, not just as a precursor to `qdisc_put`. This is a key detail that refines my understanding of the internal workings of `qdisc_destroy`. To be absolutely certain about this specific sequence and responsibility, I need to carefully review the implementation details of `qdisc_destroy`.


129/4 2026/08/15 17:46 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_destroy]

Results:
map[SourceCode:1133:	void qdisc_destroy(struct Qdisc *qdisc)
1134:	{
1135:		if (qdisc->flags & TCQ_F_BUILTIN)
1136:			return;
1137:	
1138:		__qdisc_destroy(qdisc);
1139:	}
 SourceFile:net/sched/sch_generic.c]

130/4 2026/08/15 17:46 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 44266
							output: 38
							thoughts: 18
						

Thoughts:
**My Thought Process on Locating `__qdisc_destroy`**

Ah, right, so the thought first strikes me: "Wait, where *is* `__qdisc_destroy`?" My immediate mental navigation points me towards the kernel's networking subsystem, specifically the queuing discipline (qdisc) framework. Given its fundamental role in managing packet queues, I'm thinking it's likely to be in a core, generic implementation file rather than a highly specific driver. My internal index of kernel code quickly brings up `sch_generic.c` as the prime candidate. That's where the fundamental building blocks and generic logic for queuing disciplines are typically housed. So, yes, my immediate conclusion is that `__qdisc_destroy` resides within `sch_generic.c`.


131/4 2026/08/15 17:47 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

132/4 2026/08/15 17:47 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 44704
							output: 39
							thoughts: 4260
						

Thoughts:
**The Root of the Timing Issue: A Race Between Qdisc Removal and Timer-Driven Rehashing**

It appears I've finally pinpointed the exact timing window that's causing this kernel bug. The core of the problem lies in the sequence of operations when deleting a queuing discipline (`qdisc`). Specifically, `qdisc_hash_del(qdisc)` is invoked *before* `ops->destroy(qdisc)`. This is crucial because the `ops->destroy` function for the `drr` (Deficit Round Robin) scheduler is responsible for tearing down all its associated classes. When these classes are destroyed, any child `qdiscs`, such as our `sfq` (Stochastic Fairness Queuing) instances attached to them, are also destroyed.

The issue arises when this class destruction process, especially with a large number of classes, takes a non-trivial amount of time. During this period of active destruction, the `sfq_perturbation` timer can fire. This timer's handler, `sfq_rehash`, subsequently calls `qdisc_tree_reduce_backlog`. This function, in turn, attempts to look up the parent `qdisc` in the hash table using `qdisc_lookup_rcu`. However, because `qdisc_hash_del` has *already* removed the parent `qdisc` from the hash table, `qdisc_lookup_rcu` returns `NULL`. This unexpected `NULL` result then triggers a `WARN_ON_ONCE(parentid != TC_H_ROOT)` assertion, which is precisely what we're observing as the bug. This confirms my suspicion that the reproducer logic is sound.

Now, I need to translate this understanding into a concrete C implementation. The plan is to construct a scenario that reliably triggers this race condition:

1.  **Establish a dummy network interface:** I'll create a dummy interface, as it's lightweight and sufficient for this test.
2.  **Bring the interface UP:** This is necessary for packet transmission.
3.  **Attach a `drr` root qdisc:** This will be the parent scheduler.
4.  **Create a substantial number of `drr` classes:** Approximately 500 classes are needed to ensure the destruction process takes enough time to overlap with the timer.
5.  **Attach an `sfq` qdisc to a specific `drr` class:** I'll target class `1:100` for the `sfq` attachment.
6.  **Initiate packet sending:** A separate thread will continuously send packets. Crucially, these packets will be marked with `SO_PRIORITY = 0x00010064`, which corresponds to the `1:100` class identifier (`TC_H_MAKE(1<<16, 100)`).
7.  **Introduce a delay:** A short sleep of around 900ms is required to allow the `sfq_perturbation` timer to potentially fire during the `drr` class destruction.
8.  **Delete the root `drr` qdisc:** This is the action that initiates the problematic sequence.
9.  **Repeat the process:** The entire setup will be repeated to ensure consistent reproduction of the bug.

I need to be precise about the `SO_PRIORITY` value. The `TC_H_MAKE` macro constructs the `classid` from major and minor components. For class `1:100`, this translates to `(1 << 16) | 100`, which is indeed `0x00010064`.

The next step is to implement the necessary Netlink helper functions for interacting with the kernel's traffic control subsystem. This involves functions for adding attributes to Netlink messages, sending requests, and handling responses. I've outlined the structures and logic required for creating dummy interfaces, bringing them up, and adding/deleting `drr` and `sfq` queuing disciplines and classes.

I've also started drafting the sender thread. It needs to create a raw socket, set the `SO_PRIORITY` option, and continuously send packets to the target interface.

However, a critical realization has just struck me regarding packet queuing. If packets are continuously sent and `drr` is work-conserving, it will dequeue packets almost immediately. This would mean the `sfq` queue remains largely empty, and the `sfq_perturbation` timer won't trigger `sfq_rehash` because the condition `q->tail` (indicating packets in the queue) won't be met.

I need packets to *stay* in the `sfq` queue so that `sfq_perturbation` has a chance to fire. Initially, I considered leaving the interface DOWN, but that would cause packets to be dropped *before* they even reach the `qdisc`. The key insight is in how `__dev_queue_xmit` handles `q->enqueue`. If `q->enqueue` is non-NULL (which it will be when we attach a `qdisc`), it proceeds to `dev_qdisc_enqueue` and `qdisc_run` without checking the interface's `IFF_UP` flag at that specific point. This means packets *will* be enqueued even if the interface is DOWN.

The question now is: what happens *after* `qdisc_run` calls `sch_direct_xmit` and then `dev_hard_start_xmit`? Does `dev_hard_start_xmit` have a check for `IFF_UP` that would prevent transmission and thus keep packets in the queue? This is the next crucial detail to investigate.


133/4 2026/08/15 17:47 tool codesearch-definition-source
0m Args:
map[ContextFile:net/core/dev.c Name:dev_hard_start_xmit]

Results:
map[SourceCode:3895:	struct sk_buff *dev_hard_start_xmit(struct sk_buff *first, struct net_device *dev,
3896:					    struct netdev_queue *txq, int *ret)
3897:	{
3898:		struct sk_buff *skb = first;
3899:		int rc = NETDEV_TX_OK;
3900:	
3901:		while (skb) {
3902:			struct sk_buff *next = skb->next;
3903:	
3904:			skb_mark_not_on_list(skb);
3905:			rc = xmit_one(skb, dev, txq, next != NULL);
3906:			if (unlikely(!dev_xmit_complete(rc))) {
3907:				skb->next = next;
3908:				goto out;
3909:			}
3910:	
3911:			skb = next;
3912:			if (netif_tx_queue_stopped(txq) && skb) {
3913:				rc = NETDEV_TX_BUSY;
3914:				break;
3915:			}
3916:		}
3917:	
3918:	out:
3919:		*ret = rc;
3920:		return skb;
3921:	}
 SourceFile:net/core/dev.c]

134/4 2026/08/15 17:47 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 49392
							output: 39
							thoughts: 416
						

Thoughts:
**My Thought Process on Packet Queuing and Transmission Control**

Okay, so I'm tracing the packet transmission flow, and I've identified a critical path: `xmit_one` calls `__netdev_start_xmit`, which then invokes the actual device driver's transmit function, `ops->ndo_start_xmit`. What's concerning here is that `__netdev_start_xmit` doesn't seem to be checking the `IFF_UP` flag. This means that even if the network interface is down, packets are still being sent to the driver's transmit function – in this case, a `dummy_xmit`. The consequence is that these packets are immediately dropped, but crucially, this implies the transmit queue (`txq`) will indeed appear empty from the perspective of the queuing discipline.

My next question then becomes: how can I prevent `qdisc_run` from dequeuing packets in the first place, thereby effectively stopping transmissions? My initial thought is `netif_tx_stop_queue(txq)`. But how do I achieve that from userspace?

I consider using `tc qdisc add ... netem`. However, I recall that `netem` doesn't actually *hold* packets within its own queuing discipline; it just modifies them. So, that's not going to work for holding packets.

Then I remember the `plug` qdisc. But `plug` is classless. This is a problem because I need to attach something like `sfq` to it, and `sfq` requires a class. Could I attach `plug` to `drr`? No, `plug` is a qdisc itself, and I can attach it to a *class*, but I need `sfq` to be the one holding the packets. If I attach `sfq` to `drr`, and I want packets to remain in `sfq`, I *must* stop the queue.

So, I'm back to the core problem of stopping the queue. Can I use `IFF_NOARP`? No, that's unrelated to queue management.

What about `tbf`? `tbf` is classful, and it has one class. This looks promising. If I use `tbf` as the root qdisc and attach `sfq` to its class, and then set the `tbf` rate to an incredibly low value, like 1 bit per second, it should dequeue one packet, and then because of the throttling, it should effectively stop the queue. This seems like a viable mechanism for throttling and thus stopping the queue!

Now I need to dig into the specifics of `tbf` classes. Wait a minute, does `tbf` actually allow attaching other qdiscs to its classes? I need to check the `tbf_graft` functionality to be sure. This is the key to see if my `tbf` + `sfq` strategy will actually work.


135/4 2026/08/15 17:47 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_tbf.c Name:tbf_graft]

Results:
map[SourceCode: 568:	static int tbf_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
 569:			     struct Qdisc **old, struct netlink_ext_ack *extack)
 570:	{
 571:		struct tbf_sched_data *q = qdisc_priv(sch);
 572:	
 573:		if (new == NULL)
 574:			new = &noop_qdisc;
 575:	
 576:		*old = qdisc_replace(sch, new, &q->qdisc);
 577:	
 578:		tbf_offload_graft(sch, new, *old, extack);
 579:		return 0;
 580:	}
 SourceFile:net/sched/sch_tbf.c]

136/4 2026/08/15 17:47 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 50067
							output: 38
							thoughts: 185
						

Thoughts:
**My Thought Process on Qdisc Configuration for `qdisc_destroy` Delay**

Aha! My initial thought was that `tbf` would be the perfect tool for this. I know `tbf` is a "classful" qdisc, meaning I can attach child qdiscs to it. This seemed promising for creating the layered structure I needed to delay `qdisc_destroy`.

However, I immediately recalled a crucial detail about `tbf`: it's designed to have only *one* class. This presented a problem. If I were to use `tbf` at the root of my qdisc tree, I could only attach a single `sfq` (Stochastic Fairness Queuing) instance to it. But my goal requires *many* separate classes to effectively delay the `qdisc_destroy` operation. The limitation of a single child qdisc under `tbf` meant I couldn't achieve the necessary multiplicity.

So, I had to pivot. My next idea was to use `drr` (Deficit Round Robin) as the root qdisc. `drr` is inherently capable of supporting a large number of classes – I specifically thought of using 500 classes. This would give me the many independent queues I needed.

Then, within each of these 500 `drr` classes, I could attach a `tbf` instance. And *within* that `tbf` instance, I would finally attach an `sfq`. This established the hierarchical structure: `drr` -> `tbf` -> `sfq`.

The logic here was that the `drr` would distribute traffic across its many classes, and then the `tbf` in each class would act as the throttling mechanism. My thought was that by throttling the queue with `tbf`, packets would be kept *in* the `sfq` associated with that `tbf` instance, thereby achieving the desired delay.

But then, a moment of self-doubt crept in. I needed to be absolutely sure about the interaction between `tbf` and `sfq`. If `tbf` is throttling the queue, does it actually keep packets *in* the `sfq` itself, or does it simply limit the rate at which packets *leave* the `sfq`? To confirm this critical detail, I knew I had to consult the `tbf_enqueue` implementation.


137/4 2026/08/15 17:47 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_tbf.c Name:tbf_enqueue]

Results:
map[SourceCode: 251:	static int tbf_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 252:			       struct sk_buff **to_free)
 253:	{
 254:		struct tbf_sched_data *q = qdisc_priv(sch);
 255:		unsigned int len = qdisc_pkt_len(skb);
 256:		int ret;
 257:	
 258:		if (qdisc_pkt_len(skb) > q->max_size) {
 259:			if (skb_is_gso(skb) &&
 260:			    skb_gso_validate_mac_len(skb, q->max_size))
 261:				return tbf_segment(skb, sch, to_free);
 262:			return qdisc_drop(skb, sch, to_free);
 263:		}
 264:		ret = qdisc_enqueue(skb, q->qdisc, to_free);
 265:		if (ret != NET_XMIT_SUCCESS) {
 266:			if (net_xmit_drop_count(ret))
 267:				qdisc_qstats_drop(sch);
 268:			return ret;
 269:		}
 270:	
 271:		qstats_backlog_add(sch, len);
 272:		qdisc_qlen_inc(sch);
 273:		return NET_XMIT_SUCCESS;
 274:	}
 SourceFile:net/sched/sch_tbf.c]

138/4 2026/08/15 17:47 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 50713
							output: 40
							thoughts: 936
						

Thoughts:
**Aha! The Puzzle Piece Fits: TBF and SFQ Synergizing for Packet Hold-Up**

I've just had a significant realization regarding the interaction between `tbf_enqueue` and `q->qdisc` (which I now firmly grasp is my `sfq` instance). The core insight is that `tbf_enqueue` *does* indeed store packets within `q->qdisc`. This is crucial because `tbf_dequeue`'s behavior is entirely token-dependent. By setting the `tbf` rate to an incredibly low value, say 1 bit per second, `tbf_dequeue` will only be able to release a single packet before exhausting its token supply. This means subsequent packets will remain queued in `sfq`, effectively creating a buffer. This is precisely the behavior I was aiming for!

My next step was to delve into the configuration of the `tbf` qdisc. I examined the `struct tc_tbf_qopt`, noting the essential fields: `rate`, `peakrate`, `limit`, `buffer`, and `mtu`. I understood that I would need to pass these parameters under the `TCA_TBF_PARMS` attribute when configuring the `tbf` qdisc.

I began to construct the `tc_tbf_qopt` structure, setting the `rate` to `1` (representing 1 byte per second, as this seems to be the interpretation within this context) and reasonable values for `limit`, `buffer`, and `mtu`.

However, a closer look at the `tbf_change` function revealed a potential pitfall. It appears that `tbf_change` not only checks for `TCA_TBF_PARMS` but also for `TCA_TBF_RTAB` when the `linklayer` is `TC_LINKLAYER_UNAWARE` (which defaults to 0). My current code snippet for `add_qdisc_tbf` only includes `TCA_TBF_PARMS`. The concern is that if `TCA_TBF_RTAB` is *not* present, the call to `qdisc_get_rtab` within `tbf_change` might fail. This is something I need to address immediately to ensure the `tbf` qdisc is configured correctly and robustly.


139/4 2026/08/15 17:48 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_get_rtab]

Results:
map[SourceCode: 419:	struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r,
 420:						struct nlattr *tab,
 421:						struct netlink_ext_ack *extack)
 422:	{
 423:		struct qdisc_rate_table *rtab;
 424:	
 425:		if (tab == NULL || r->rate == 0 ||
 426:		    r->cell_log == 0 || r->cell_log >= 32 ||
 427:		    nla_len(tab) != TC_RTAB_SIZE) {
 428:			NL_SET_ERR_MSG(extack, "Invalid rate table parameters for searching");
 429:			return NULL;
 430:		}
 431:	
 432:		for (rtab = qdisc_rtab_list; rtab; rtab = rtab->next) {
 433:			if (!memcmp(&rtab->rate, r, sizeof(struct tc_ratespec)) &&
 434:			    !memcmp(&rtab->data, nla_data(tab), TC_RTAB_SIZE)) {
 435:				rtab->refcnt++;
 436:				return rtab;
 437:			}
 438:		}
 439:	
 440:		rtab = kmalloc_obj(*rtab);
 441:		if (rtab) {
 442:			rtab->rate = *r;
 443:			rtab->refcnt = 1;
 444:			memcpy(rtab->data, nla_data(tab), TC_RTAB_SIZE);
 445:			if (r->linklayer == TC_LINKLAYER_UNAWARE)
 446:				r->linklayer = __detect_linklayer(r, rtab->data);
 447:			rtab->next = qdisc_rtab_list;
 448:			qdisc_rtab_list = rtab;
 449:		} else {
 450:			NL_SET_ERR_MSG(extack, "Failed to allocate new qdisc rate table");
 451:		}
 452:		return rtab;
 453:	}
 SourceFile:net/sched/sch_api.c]

140/4 2026/08/15 17:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 52297
							output: 43
							thoughts: 1459
						

Thoughts:
**A Journey Through Queueing Discipline Design**

Initially, I was grappling with the intricacies of establishing a robust queue throttling mechanism. My thoughts turned to the requirement of a non-null `tab` pointer, implying the necessity of passing a substantial 1024-byte array, specifically `TCA_TBF_RTAB`. This felt overly complex, prompting me to question if a more straightforward approach to queue throttling existed.

My mind then wandered to `netem`. However, I quickly realized that `netem` internally manages its own queue and then dequeues to the underlying queue discipline, in this case, `sfq`. The critical observation was that `sfq`, being work-conserving, would immediately dequeue any packet handed to it. I delved into the `netem_dequeue` function and saw it enqueuing to `q->qdisc` and then immediately calling `q->qdisc->ops->dequeue(q->qdisc)`. My initial interpretation was that this meant packets would indeed pass through `sfq` briefly.

However, upon closer examination of `tfifo_dequeue`, I noticed it dequeues from `sch->q`, which is `netem`'s internal FIFO, *not* `q->qdisc`. This led me to question where the dequeue from `q->qdisc` was actually happening. I found it: the dequeue from `q->qdisc` occurs at the very end of `netem_dequeue`. This clarified that a packet would only reside in `sfq` for the extremely short duration of the `netem_dequeue` execution, not persisting there.

This realization shifted my focus. What if I could leverage `prio` without bringing the interface UP? While `dev_hard_start_xmit` would drop packets, I started thinking about scenarios where a sender thread continuously injects packets. In such a continuous flow, `sfq` would hold packets *at the precise moment* a timer event, like `sfq_perturbation`, fires because the sender thread is constantly enqueuing and `qdisc_run` is constantly dequeuing. This continuous activity creates a high probability that `sfq` will indeed contain packets when its perturbation logic needs to run.

This line of thinking led me to a much simpler and more elegant solution: the `drr` to `sfq` combination, coupled with continuous packet injection. My proposed setup involves a `drr` root, followed by 500 `drr` classes, and crucially, `sfq` attached to one of these classes (specifically `1:100`). A sender thread would then continuously enqueue packets with a priority that maps to this `sfq`-attached `drr` class. Packets would flow into `drr`, be classified to the target class, and then enqueued into `sfq`. The `qdisc_run` mechanism would then dequeue from `drr`, which in turn dequeues from `sfq`. With multiple sender threads running in a tight loop, `sfq` would be consistently populated, and the perturbation logic would have a high likelihood of encountering packets. This approach bypasses the complexities of `tbf` and `netem` entirely.

As I refined this idea, I began to outline the `setup_qdiscs` function, detailing the addition of the `drr` root, the creation of the 500 classes, and the attachment of `sfq` to class `1:100`. My thoughts then turned to the specifics of `drr` configuration, particularly the `TCA_DRR_QUANTUM`. I then documented the `add_class_drr` function, noting the `TCA_DRR_QUANTUM` parameter being set to 1, and resolved to verify this specific setting.


141/4 2026/08/15 17:48 tool codesearch-definition-source
0m Error:
log-in to see details

Args:
map[ContextFile:include/uapi/linux/pkt_sched.h Name:tc_drr_tca]

Results:
map[SourceCode: SourceFile:]

142/4 2026/08/15 17:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 53804
							output: 40
							thoughts: 15
						

Thoughts:
**My Thought Process on Locating `TCA_DRR_QUANTUM`**

Alright, so the immediate task before me is to find where this specific identifier, `TCA_DRR_QUANTUM`, is being used or defined within the codebase. My natural inclination, given this kind of objective, is to leverage a robust text-searching tool. For me, `grep` is the go-to. It's efficient, it's powerful, and it's precisely what I need to quickly scan through a potentially large number of files. So, my first step, my primary mental action, is to initiate that search. I'm thinking, "Let's grep for `TCA_DRR_QUANTUM`." That's the most direct and effective way to begin pinpointing its location.


143/4 2026/08/15 17:48 tool grepper
0m Args:
map[Expression:TCA_DRR_QUANTUM PathPrefix:include/uapi/linux/pkt_sched.h]

Results:
map[Output:include/uapi/linux/pkt_sched.h=584=enum {
include/uapi/linux/pkt_sched.h-585-	TCA_DRR_UNSPEC,
include/uapi/linux/pkt_sched.h:586:	TCA_DRR_QUANTUM,
include/uapi/linux/pkt_sched.h-587-	__TCA_DRR_MAX
]

144/4 2026/08/15 17:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 53958
							output: 36
							thoughts: 27
						

Thoughts:
**My Thought Process for Approving `TCA_DRR_QUANTUM` and Initiating `TCA_OPTIONS` Verification**

My immediate confirmation that `TCA_DRR_QUANTUM` is set to 1 is a critical first step. This value, as I understand it, represents a fundamental parameter governing the behavior of some system or process I'm overseeing. Its value of 1 likely signifies a specific mode of operation, a default setting, or perhaps the activation of a particular feature set that I've previously deemed appropriate or necessary. This isn't just a casual observation; it's a validation against established criteria or prior decisions.

Following this verification, my attention naturally shifts to `TCA_OPTIONS`. This parameter, by its very name, suggests a higher level of configuration or a set of more granular controls. If `TCA_DRR_QUANTUM` represents the "what," then `TCA_OPTIONS` likely dictates the "how" or the "under what conditions." Therefore, it's imperative for me to examine its current state. I need to ensure that the available options are consistent with the implications of `TCA_DRR_QUANTUM` being 1. This involves a careful review to see if the selected options align with our overarching objectives, any security protocols, performance tuning requirements, or specific operational needs that are currently in play. It’s about ensuring that the underlying system is configured not just correctly, but optimally and securely based on the established baseline.


145/4 2026/08/15 17:48 tool grepper
0m Args:
map[Expression:TCA_OPTIONS PathPrefix:include/uapi/linux/rtnetlink.h]

Results:
map[Output:include/uapi/linux/rtnetlink.h=635=enum {
--
include/uapi/linux/rtnetlink.h-637-	TCA_KIND,
include/uapi/linux/rtnetlink.h:638:	TCA_OPTIONS,
include/uapi/linux/rtnetlink.h-639-	TCA_STATS,
]

146/4 2026/08/15 17:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 54112
							output: 37
							thoughts: 56
						

Thoughts:
**My Thought Process Regarding Network Interface Configuration:**

Alright, so my initial check confirms that `TCA_OPTIONS` is indeed set to 2. That aligns with what I'd expect for this particular configuration. Now, I need to move on to verifying `TCA_KIND`.

My next step is to ascertain the value of `TCA_KIND`. After a quick inspection, I'm seeing that `TCA_KIND` is 1. This is a critical piece of information, as it dictates how the traffic control rules are interpreted.

Following that, the crucial verification points are `IFLA_IFNAME` and `IFLA_LINKINFO`. I need to ensure that these parameters are correctly populated to accurately identify and associate the network interface and its underlying link information with the traffic control configuration I'm working with. This will be the final confirmation before I can proceed with confidence.


147/4 2026/08/15 17:48 tool grepper
0m Args:
map[Expression:IFLA_IFNAME PathPrefix:include/uapi/linux/if_link.h]

Results:
map[Output:include/uapi/linux/if_link.h=296=enum {
--
include/uapi/linux/if_link.h-299-	IFLA_BROADCAST,
include/uapi/linux/if_link.h:300:	IFLA_IFNAME,
include/uapi/linux/if_link.h-301-	IFLA_MTU,
]

148/4 2026/08/15 17:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 54299
							output: 37
							thoughts: 11
						

Thoughts:
**A Deep Dive into the IFLA_IFNAME Value**

Alright, so I've got this `IFLA_IFNAME` variable, and its current value is 3. This is the core piece of information I'm grappling with, and it immediately triggers a cascade of considerations given my expertise in this domain.

What does `IFLA_IFNAME` actually represent? My immediate thought is that it's some kind of identifier related to network interfaces. The "IFLA" prefix strongly suggests it's part of the Netlink interface attribute family. "IFNAME" itself points directly to an interface name. So, I'm looking at a numerical representation of a network interface's name.

Now, the value is 3. This is where the nuance comes in. In many networking contexts, interface names aren't inherently numerical. We're used to seeing things like "eth0," "wlan1," "lo," or more modern names like "ens33" or "wlp2s0." So, a raw integer like 3 isn't a human-readable interface name itself.

This leads me to several hypotheses about what this '3' could signify:

1.  **An Index or Ordinal Number:** The most probable scenario is that '3' is an index within a list or array of network interface names. The system likely enumerates its interfaces sequentially, and this particular interface, whatever its actual name (e.g., "eth2" or "ens3"), happens to be the third one in that ordered list. This is a common pattern for internal system management.

2.  **A Specific, Predefined Interface:** It's also possible that '3' directly maps to a *specific* interface that has this numerical designation. While less common for general-purpose network interfaces, some specialized or virtual interfaces might be referred to by numerical IDs. However, given the "IFNAME" part, this is less likely than the index interpretation unless there's a well-defined, albeit unusual, convention at play.

3.  **A Deprecated or Internal Representation:** Could this be a legacy identifier, or an internal representation that's not directly exposed to the user in a human-readable format? The fact that it's a simple integer suggests it might be an older mechanism or used primarily for internal kernel or library communication where efficiency over human readability is prioritized.

4.  **A Placeholder or Error:** While I should consider this, my expertise tells me to lean towards a functional interpretation first. If it were an error, I'd expect a different kind of flag or perhaps a specific error code, not a seemingly valid integer. A placeholder is possible if the interface isn't fully configured yet, but again, it's a less likely primary interpretation.

So, my primary line of inquiry is: "What is the *actual* name of the interface that this `IFLA_IFNAME` value of 3 refers to?" This would likely involve querying the system's network interface configuration. I'd be looking at tools or APIs that can translate this numerical attribute back into a conventional interface name.

In essence, this '3' isn't an end in itself, but a pointer. It's a reference point that I, as an expert, need to resolve to understand the concrete network interface it pertains to. My next step would be to correlate this `IFLA_IFNAME` with other Netlink attributes or system calls that provide the actual interface name string, such as `IFLA_IFNAME` (which is confusingly the same name as the attribute family itself but often refers to the *string name* in the payload when `IFLA_IFNAME` is 3 in *this specific context*), or by iterating through the list of interface attributes to find the one associated with this index. The goal is to move from this abstract numerical handle to the tangible network entity it represents.


149/4 2026/08/15 17:49 tool grepper
0m Args:
map[Expression:IFLA_LINKINFO PathPrefix:include/uapi/linux/if_link.h]

Results:
map[Output:include/uapi/linux/if_link.h=296=enum {
--
include/uapi/linux/if_link.h-322-	IFLA_LINKMODE,
include/uapi/linux/if_link.h:323:	IFLA_LINKINFO,
include/uapi/linux/if_link.h:324:#define IFLA_LINKINFO IFLA_LINKINFO
include/uapi/linux/if_link.h-325-	IFLA_NET_NS_PID,
]

150/4 2026/08/15 17:49 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 54474
							output: 39
							thoughts: 12
						

Thoughts:
**My Internal Deliberations Regarding IFLA_LINKINFO**

My current assessment points to a specific value for `IFLA_LINKINFO`: it's sixteen. This is a key data point in my ongoing analysis, and I'm holding this figure firmly in mind as I continue to process the information at hand.


151/4 2026/08/15 17:49 tool grepper
0m Args:
map[Expression:IFLA_INFO_KIND PathPrefix:include/uapi/linux/if_link.h]

Results:
map[Output:include/uapi/linux/if_link.h=1168=enum {
include/uapi/linux/if_link.h-1169-	IFLA_INFO_UNSPEC,
include/uapi/linux/if_link.h:1170:	IFLA_INFO_KIND,
include/uapi/linux/if_link.h-1171-	IFLA_INFO_DATA,
]

152/4 2026/08/15 17:49 llm repro-generator
1m Model:
gemini-3.1-pro-preview

Tokens:
							input: 54625
							output: 3858
							thoughts: 13897
						

Thoughts:
**A Deep Dive into Network Traffic Control: Reproducing a Kernel Race Condition**

This is fascinating. I've been digging into the intricacies of the Linux kernel's traffic control (TC) subsystem, specifically trying to pinpoint a race condition that occurs during the dynamic modification of queuing disciplines (qdiscs) and their associated classes. My goal here is to construct a reliable reproducer for this behavior.

Initially, I was looking at the constants defined within the `linux/rtnetlink.h` and `linux/if_link.h` headers. I noticed `IFLA_INFO_KIND` was defined as `1`. My first thought was, "I should define these locally in my C code to avoid missing header includes and ensure everything is self-contained." I even jotted down some definitions like `TCA_KIND`, `TCA_OPTIONS`, `IFLA_IFNAME`, `IFLA_LINKINFO`, `IFLA_INFO_KIND`, and `TCA_DRR_QUANTUM`.

But then, a crucial realization hit me: these constants are already well-defined in standard kernel headers like `linux/rtnetlink.h` and `linux/if_link.h`. Why reinvent the wheel? I can simply include those headers. This is much cleaner and leverages the existing kernel API definitions. I also needed `linux/pkt_sched.h` for structures like `tc_sfq_qopt`.

Next, I focused on the `tc_sfq_qopt` structure. I confirmed that it's indeed defined in `linux/pkt_sched.h` and examined its members: `quantum`, `perturb_period`, `limit`, `divisor`, and `flows`. This structure is central to configuring the Stochastic Fairness Queuing (SFQ) algorithm.

With the necessary headers and structures in mind, I started constructing the full reproducer. This involved creating helper functions for Netlink message construction (`addattr_l`, `addattr32`, `addattr_str`, `addattr_nest`, `addattr_nest_end`) and for sending/receiving Netlink requests (`send_nl_req`).

The core of the reproducer involves creating and manipulating network interfaces and their associated traffic control objects. I implemented functions to:

*   **Create dummy interfaces**: `create_dummy` uses Netlink to create a `dummy` interface, essential for isolating our traffic control experiments.
*   **Get interface index**: `get_ifindex` is a utility to retrieve the numerical index of an interface, which is required for most Netlink operations targeting specific interfaces.
*   **Bring up interfaces**: `bring_up` uses `ioctl` to set the `IFF_UP` flag, ensuring the interface is administratively enabled.
*   **Add DRR qdisc**: `add_qdisc_drr` sets up a DRR (Deficit Round Robin) queuing discipline as the root qdisc for an interface.
*   **Add DRR class**: `add_class_drr` creates a DRR class under a parent qdisc, specifying parameters like `TCA_DRR_QUANTUM`.
*   **Add SFQ qdisc**: `add_qdisc_sfq` configures an SFQ qdisc as a child qdisc, with parameters like `perturb_period`, `limit`, `divisor`, and `flows`. This is the target of our race condition.
*   **Delete root qdisc**: `del_qdisc_root` is critical for the race; it removes the entire qdisc hierarchy from the root.

The heart of the reproducer lies in the `racer` thread. This function creates a dummy interface, brings it up, and then enters a loop. Inside the loop, it:

1.  **Sets up DRR**: It adds a DRR qdisc and then populates it with a large number of DRR classes (500 in this case). This is to create a significant overhead when deleting.
2.  **Adds SFQ**: It attaches an SFQ qdisc to one of the DRR classes. The `perturb_period` of SFQ is set to 1 second, meaning its internal hashing structure will be re-randomized every second.
3.  **Introduces the race**: It then sleeps for a duration precisely designed to overlap with the SFQ's 1-second timer. Shortly before the timer is due to expire and trigger the SFQ rehash, it calls `del_qdisc_root` to tear down the entire qdisc hierarchy. The race condition occurs if the SFQ timer fires *while* the root qdisc is being deleted. This can lead to the SFQ trying to access data structures that are no longer valid.
4.  **Sender thread**: A separate `sender_thread` is launched to continuously inject traffic into the interface. This is important to ensure that the SFQ queue is not empty when the race condition occurs, increasing the likelihood of hitting the bug. The `setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio))` call ensures that the sent packets are tagged with a priority that matches one of the DRR classes, increasing the chance of them being processed. I refined this to use `sched_yield()` to prevent the sender from completely starving other processes or softirqs, while still maximizing traffic injection.

The `main` function orchestrates the whole process:

1.  **Namespaces**: It uses `unshare(CLONE_NEWUSER | CLONE_NEWNET)` to create new user and network namespaces. This is crucial for isolating the operations and mapping UIDs/GIDs correctly, preventing interference with the host system. I had to carefully handle the UID/GID mapping by capturing the original UIDs *before* the `unshare` call.
2.  **Interface setup**: It brings up the loopback interface (`lo`) as a baseline.
3.  **Thread creation**: It then launches two `racer` threads concurrently. The goal is for both threads to trigger the race condition repeatedly, increasing the probability of observing the bug.
4.  **Synchronization**: `pthread_join` ensures that the main thread waits for both `racer` threads to complete their iterations. A final `sleep(2)` is added to allow any lingering timers or asynchronous operations to finish.

I spent some time carefully reviewing the Netlink message construction and the traffic control object parameters (handles, parents, class IDs) to ensure they were correctly formed according to the `tc` command-line tool's behavior. I also made a critical correction regarding `getuid()` and `getgid()` after `unshare(CLONE_NEWUSER)`. Initially, I called these functions *after* `unshare`, which would return values from within the new, unmapped namespace. The correct approach is to capture the real UIDs and GIDs *before* creating the new namespace.

The choice of parameters, like the 500 classes and the sleep duration, is a balancing act. Too few classes and the deletion is too fast; too many and the setup itself might take too long. The sleep duration is precisely calibrated to hit the SFQ's 1-second perturbation timer. The jitter in the sleep adds variability, making the race more likely to manifest across different runs and configurations.

This setup should reliably trigger the race condition related to SFQ's timer firing during qdisc deletion, providing a solid foundation for further debugging and analysis of the kernel's behavior.


153/4 2026/08/15 17:51 tool set-results
0m Args:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    int len = recvmsg(fd, &msg, 0);
    if (len < 0) return -1;
    struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
    if (ret_n->nlmsg_type == NLMSG_ERROR) {
        struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
        if (err->error == 0) return 0;
        return err->error;
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_drr(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    return send_nl_req(fd, &req.n);
}

int add_class_drr(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    addattr32(&req.n, sizeof(req), 1, 1000); // TCA_DRR_QUANTUM = 1
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *sender_thread(void *arg) {
    void **args = (void **)arg;
    int ifindex = (int)(long)args[0];
    int *stop = (int *)args[1];
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    int prio = TC_H_MAKE(1<<16, 100);
    if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    char buf[64] = {0};
    while (!*stop) {
        for (int i = 0; i < 100; i++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        sched_yield();
    }
    close(fd);
    return NULL;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    int stop = 0;
    void *args[2] = { (void *)(long)ifindex, &stop };
    pthread_t th;
    pthread_create(&th, NULL, sender_thread, args);
    
    unsigned int seed = time(NULL) + id;
    
    for (int iter = 0; iter < 20; iter++) {
        add_qdisc_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT);
        
        for (int c = 1; c <= 500; c++) {
            add_class_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_MAKE(1<<16, c));
        }
        
        add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE(2<<16, 0), TC_H_MAKE(1<<16, 100));
        
        usleep(900000 + (rand_r(&seed) % 100000));
        
        del_qdisc_root(nl_fd, ifindex);
    }
    
    stop = 1;
    pthread_join(th, NULL);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}
]

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    int len = recvmsg(fd, &msg, 0);
    if (len < 0) return -1;
    struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
    if (ret_n->nlmsg_type == NLMSG_ERROR) {
        struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
        if (err->error == 0) return 0;
        return err->error;
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_drr(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    return send_nl_req(fd, &req.n);
}

int add_class_drr(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    addattr32(&req.n, sizeof(req), 1, 1000); // TCA_DRR_QUANTUM = 1
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *sender_thread(void *arg) {
    void **args = (void **)arg;
    int ifindex = (int)(long)args[0];
    int *stop = (int *)args[1];
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    int prio = TC_H_MAKE(1<<16, 100);
    if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    char buf[64] = {0};
    while (!*stop) {
        for (int i = 0; i < 100; i++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        sched_yield();
    }
    close(fd);
    return NULL;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    int stop = 0;
    void *args[2] = { (void *)(long)ifindex, &stop };
    pthread_t th;
    pthread_create(&th, NULL, sender_thread, args);
    
    unsigned int seed = time(NULL) + id;
    
    for (int iter = 0; iter < 20; iter++) {
        add_qdisc_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT);
        
        for (int c = 1; c <= 500; c++) {
            add_class_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_MAKE(1<<16, c));
        }
        
        add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE(2<<16, 0), TC_H_MAKE(1<<16, 100));
        
        usleep(900000 + (rand_r(&seed) % 100000));
        
        del_qdisc_root(nl_fd, ifindex);
    }
    
    stop = 1;
    pthread_join(th, NULL);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}
]

154/3 2026/08/15 17:51 loop
0m
155/4 2026/08/15 17:51 iteration 0
0m
156/5 2026/08/15 17:51 action merge-repro-c
0m Results:
map[CurrentCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    int len = recvmsg(fd, &msg, 0);
    if (len < 0) return -1;
    struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
    if (ret_n->nlmsg_type == NLMSG_ERROR) {
        struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
        if (err->error == 0) return 0;
        return err->error;
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_drr(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    return send_nl_req(fd, &req.n);
}

int add_class_drr(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    addattr32(&req.n, sizeof(req), 1, 1000); // TCA_DRR_QUANTUM = 1
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *sender_thread(void *arg) {
    void **args = (void **)arg;
    int ifindex = (int)(long)args[0];
    int *stop = (int *)args[1];
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    int prio = TC_H_MAKE(1<<16, 100);
    if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    char buf[64] = {0};
    while (!*stop) {
        for (int i = 0; i < 100; i++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        sched_yield();
    }
    close(fd);
    return NULL;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    int stop = 0;
    void *args[2] = { (void *)(long)ifindex, &stop };
    pthread_t th;
    pthread_create(&th, NULL, sender_thread, args);
    
    unsigned int seed = time(NULL) + id;
    
    for (int iter = 0; iter < 20; iter++) {
        add_qdisc_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT);
        
        for (int c = 1; c <= 500; c++) {
            add_class_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_MAKE(1<<16, c));
        }
        
        add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE(2<<16, 0), TC_H_MAKE(1<<16, 100));
        
        usleep(900000 + (rand_r(&seed) % 100000));
        
        del_qdisc_root(nl_fd, ifindex);
    }
    
    stop = 1;
    pthread_join(th, NULL);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}
]

157/5 2026/08/15 17:51 action compile-c-prog
0m Results:
map[CompilerError: FormattedReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    int len = recvmsg(fd, &msg, 0);
    if (len < 0) return -1;
    struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
    if (ret_n->nlmsg_type == NLMSG_ERROR) {
        struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
        if (err->error == 0) return 0;
        return err->error;
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_drr(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    return send_nl_req(fd, &req.n);
}

int add_class_drr(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    addattr32(&req.n, sizeof(req), 1, 1000); // TCA_DRR_QUANTUM = 1
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *sender_thread(void *arg) {
    void **args = (void **)arg;
    int ifindex = (int)(long)args[0];
    int *stop = (int *)args[1];
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    int prio = TC_H_MAKE(1<<16, 100);
    if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    char buf[64] = {0};
    while (!*stop) {
        for (int i = 0; i < 100; i++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        sched_yield();
    }
    close(fd);
    return NULL;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    int stop = 0;
    void *args[2] = { (void *)(long)ifindex, &stop };
    pthread_t th;
    pthread_create(&th, NULL, sender_thread, args);
    
    unsigned int seed = time(NULL) + id;
    
    for (int iter = 0; iter < 20; iter++) {
        add_qdisc_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT);
        
        for (int c = 1; c <= 500; c++) {
            add_class_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_MAKE(1<<16, c));
        }
        
        add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE(2<<16, 0), TC_H_MAKE(1<<16, 100));
        
        usleep(900000 + (rand_r(&seed) % 100000));
        
        del_qdisc_root(nl_fd, ifindex);
    }
    
    stop = 1;
    pthread_join(th, NULL);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}
]

158/5 2026/08/15 17:51 action If
0m Args:
map[CompilerError:]

159/3 2026/08/15 17:51 action run-c-repro
5m Results:
map[CandidateBugTitle: CandidateCrashReport: CandidateReproduced:false ConsoleOutput:[   70.125833][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   70.125842][   T33] audit: type=1400 audit(1786816336.215:201): avc:  denied  { transition } for  pid=5818 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.135149][   T33] audit: type=1400 audit(1786816336.215:202): avc:  denied  { noatsecure } for  pid=5818 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.146729][   T33] audit: type=1400 audit(1786816336.215:203): avc:  denied  { rlimitinh } for  pid=5818 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.155113][   T33] audit: type=1400 audit(1786816336.215:204): avc:  denied  { siginh } for  pid=5818 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.780670][ T1373] ieee802154 phy0 wpan0: encryption failed: -22
[   71.782833][ T1373] ieee802154 phy1 wpan1: encryption failed: -22
[   72.443879][   T33] audit: type=1400 audit(1786816338.535:205): avc:  denied  { write } for  pid=5826 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.490154][   T33] audit: type=1400 audit(1786816338.585:206): avc:  denied  { write } for  pid=5829 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:65517' (ED25519) to the list of known hosts.
[   73.116432][   T33] audit: type=1400 audit(1786816339.205:207): avc:  denied  { write } for  pid=5840 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.170526][   T33] audit: type=1400 audit(1786816339.265:208): avc:  denied  { write } for  pid=5843 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.207823][   T33] audit: type=1400 audit(1786816339.295:209): avc:  denied  { create } for  pid=5839 comm="syz-executor652" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   73.221540][   T33] audit: type=1400 audit(1786816339.295:210): avc:  denied  { net_raw } for  pid=5839 comm="syz-executor652" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[   75.211808][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   75.211819][   T33] audit: type=1400 audit(1786816341.305:217): avc:  denied  { write } for  pid=5864 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.294042][   T33] audit: type=1400 audit(1786816341.385:218): avc:  denied  { write } for  pid=5867 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.684753][   T33] audit: type=1400 audit(1786816341.775:219): avc:  denied  { write } for  pid=5870 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.787121][   T33] audit: type=1400 audit(1786816341.875:220): avc:  denied  { write } for  pid=5873 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.258310][   T33] audit: type=1400 audit(1786816342.345:221): avc:  denied  { write } for  pid=5876 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.363364][   T33] audit: type=1400 audit(1786816342.455:222): avc:  denied  { write } for  pid=5879 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.498019][   T33] audit: type=1400 audit(1786816342.585:223): avc:  denied  { write } for  pid=5882 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.576402][   T33] audit: type=1400 audit(1786816342.665:224): avc:  denied  { write } for  pid=5885 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   82.026492][    T9] cfg80211: failed to load regulatory.db
[+] unshare successful.
[+] Done.
 OtherCrashReports:<nil> StraceOutput:/strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor624013804

<...>
=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=0x25 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00"], iov_len=36}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] <... sendmsg resumed>)      = 36
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] recvmsg(3 <unfinished ...>
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5859}, {error=0, msg={nlmsg_len=36, nlmsg_type=0x25 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] futex(0x7f1c99aca990, FUTEX_WAIT_BITSET|FUTEX_CLOCK_REALTIME, 5878, NULL, FUTEX_BITSET_MATCH_ANY <unfinished ...>
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] close(5)                    = 0
[pid  5878] rt_sigprocmask(SIG_BLOCK, ~[RT_1], NULL, 8) = 0
[pid  5878] madvise(0x7f1c992ca000, 8372224, MADV_DONTNEED) = 0
[pid  5878] exit(0)                     = ?
[pid  5878] +++ exited with 0 +++
[pid  5872] <... futex resumed>)        = 0
[pid  5872] close(3)                    = 0
[pid  5872] rt_sigprocmask(SIG_BLOCK, ~[RT_1], NULL, 8) = 0
[pid  5872] madvise(0x7f1c9a2cc000, 8372224, MADV_DONTNEED) = 0
[pid  5872] exit(0)                     = ?
[pid  5859] <... futex resumed>)        = 0
[pid  5872] +++ exited with 0 +++
write(1, "[+] unshare successful.\n[+] Done.\n", 34) = 34
exit_group(0)                           = ?
[+] unshare successful.
[+] Done.
+++ exited with 0 +++
 TestError:]

160/3 2026/08/15 17:56 action truncate-log
0m Results:
map[TruncatedConsoleOutput:[   70.125833][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   70.125842][   T33] audit: type=1400 audit(1786816336.215:201): avc:  denied  { transition } for  pid=5818 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.135149][   T33] audit: type=1400 audit(1786816336.215:202): avc:  denied  { noatsecure } for  pid=5818 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.146729][   T33] audit: type=1400 audit(1786816336.215:203): avc:  denied  { rlimitinh } for  pid=5818 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.155113][   T33] audit: type=1400 audit(1786816336.215:204): avc:  denied  { siginh } for  pid=5818 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.780670][ T1373] ieee802154 phy0 wpan0: encryption failed: -22
[   71.782833][ T1373] ieee802154 phy1 wpan1: encryption failed: -22
[   72.443879][   T33] audit: type=1400 audit(1786816338.535:205): avc:  denied  { write } for  pid=5826 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.490154][   T33] audit: type=1400 audit(1786816338.585:206): avc:  denied  { write } for  pid=5829 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:65517' (ED25519) to the list of known hosts.
[   73.116432][   T33] audit: type=1400 audit(1786816339.205:207): avc:  denied  { write } for  pid=5840 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.170526][   T33] audit: type=1400 audit(1786816339.265:208): avc:  denied  { write } for  pid=5843 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.207823][   T33] audit: type=1400 audit(1786816339.295:209): avc:  denied  { create } for  pid=5839 comm="syz-executor652" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   73.221540][   T33] audit: type=1400 audit(1786816339.295:210): avc:  denied  { net_raw } for  pid=5839 comm="syz-executor652" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[   75.211808][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   75.211819][   T33] audit: type=1400 audit(1786816341.305:217): avc:  denied  { write } for  pid=5864 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.294042][   T33] audit: type=1400 audit(1786816341.385:218): avc:  denied  { write } for  pid=5867 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.684753][   T33] audit: type=1400 audit(1786816341.775:219): avc:  denied  { write } for  pid=5870 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.787121][   T33] audit: type=1400 audit(1786816341.875:220): avc:  denied  { write } for  pid=5873 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.258310][   T33] audit: type=1400 audit(1786816342.345:221): avc:  denied  { write } for  pid=5876 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.363364][   T33] audit: type=1400 audit(1786816342.455:222): avc:  denied  { write } for  pid=5879 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.498019][   T33] audit: type=1400 audit(1786816342.585:223): avc:  denied  { write } for  pid=5882 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.576402][   T33] audit: type=1400 audit(1786816342.665:224): avc:  denied  { write } for  pid=5885 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   82.026492][    T9] cfg80211: failed to load regulatory.db
[+] unshare successful.
[+] Done.
 TruncatedCrashReport: TruncatedStraceOutput:/strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor624013804

<...>
=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=0x25 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00"], iov_len=36}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] <... sendmsg resumed>)      = 36
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] recvmsg(3 <unfinished ...>
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5859}, {error=0, msg={nlmsg_len=36, nlmsg_type=0x25 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] futex(0x7f1c99aca990, FUTEX_WAIT_BITSET|FUTEX_CLOCK_REALTIME, 5878, NULL, FUTEX_BITSET_MATCH_ANY <unfinished ...>
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] close(5)                    = 0
[pid  5878] rt_sigprocmask(SIG_BLOCK, ~[RT_1], NULL, 8) = 0
[pid  5878] madvise(0x7f1c992ca000, 8372224, MADV_DONTNEED) = 0
[pid  5878] exit(0)                     = ?
[pid  5878] +++ exited with 0 +++
[pid  5872] <... futex resumed>)        = 0
[pid  5872] close(3)                    = 0
[pid  5872] rt_sigprocmask(SIG_BLOCK, ~[RT_1], NULL, 8) = 0
[pid  5872] madvise(0x7f1c9a2cc000, 8372224, MADV_DONTNEED) = 0
[pid  5872] exit(0)                     = ?
[pid  5859] <... futex resumed>)        = 0
[pid  5872] +++ exited with 0 +++
write(1, "[+] unshare successful.\n[+] Done.\n", 34) = 34
exit_group(0)                           = ?
[+] unshare successful.
[+] Done.
+++ exited with 0 +++
]

161/3 2026/08/15 17:56 agent repro-oracle
4m Model:
best-expensive

Results:
map[Feedback:The reproduction attempt failed because the generated program did not hit the extremely narrow race window required to trigger this bug.

### Diagnosis & Root Cause
The `WARN_ON_ONCE(parentid != TC_H_ROOT)` in `qdisc_tree_reduce_backlog()` is triggered when a child qdisc attempts to update its parent's backlog, but the parent qdisc cannot be found in the qdisc tree. 

This happens due to a race condition between the destruction of a classful root qdisc (e.g., HTB) and the asynchronous perturbation timer of an SFQ child qdisc:
1. When a root qdisc is deleted, `qdisc_graft()` replaces `dev->qdisc` with `noop_qdisc` and then calls `qdisc_destroy()` on the old root.
2. `qdisc_destroy()` on the root (e.g., `htb_destroy()`) iterates over all its classes and destroys their leaf qdiscs sequentially.
3. If an SFQ leaf qdisc has a perturbation timer (`perturb_timer`), and this timer fires *after* `dev->qdisc` is updated but *before* `sfq_destroy()` is called to cancel the timer (`del_timer_sync`), the timer callback (`sfq_perturbation()`) will execute.
4. `sfq_perturbation()` calls `sfq_rehash()`, which unconditionally calls `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`.
5. `qdisc_tree_reduce_backlog()` attempts to look up the parent qdisc using `qdisc_lookup_rcu(dev, parentid)`. Since `dev->qdisc` has already been replaced with `noop_qdisc`, the lookup fails and returns `NULL`, triggering the warning.

### How to Reproduce Reliably
To trigger this reliably, you must artificially widen the race window (the execution time of the parent's `destroy` function) and align the timer expiration with this window:
1. Create a dummy interface and attach an HTB root qdisc.
2. Add a large number of classes (e.g., 2000-5000) to the HTB qdisc. This will make `htb_destroy()` take a significant amount of time to execute.
3. Attach an SFQ qdisc with `perturb 1` (1 second timer) to each class. Set the HTB class rate to a very low value (e.g., `rate 8bit`).
4. Send multiple packets to the dummy interface with `SO_PRIORITY` set to the respective class IDs. The low HTB rate ensures the packets remain queued in the SFQ qdiscs (which is required for `sfq_rehash` to proceed).
5. Sleep for slightly less than 1 second (e.g., `usleep(900000)` to `950000`) and then delete the HTB root qdisc.
6. The 1-second timers will fire while `htb_destroy()` is slowly iterating through the thousands of classes, reliably hitting the race condition and triggering the warning. ProbePassed:false TerminalError: TitleMatches:false]

Instruction:
You are a security researcher with deep Linux kernel background.
Analyze the results of running the generated program.

=== CRITICAL ENVIRONMENT & TARGET CLASSIFICATION ===
Set 'TerminalError' to a descriptive error message ONLY if:
1. The execution failed due to missing hardware device nodes, subsystems, kernel modules, or privilege limits
   that cannot be loaded, created, or bypassed by user-space C code edits in the VM guest.
2. The target source files or functions described in the bug description do not exist in the checked-out codebase,
   meaning the codebase version is mismatched and the target code is absent.

=== CRITICAL PROHIBITIONS ===
- Do NOT classify a run as a terminal failure or assume a bug is fixed based on git log entries, commit titles,
  or commit messages. Reproducibility can ONLY be determined by executing reproducer candidates in the VM.
- Do NOT suggest C code strategies, repairs, or namespace bypasses when setting 'TerminalError'.


=== PHASE 2: BUG REPRODUCTION (EVALUATION) ===
The executed program was a full reproducer candidate attempting to trigger the target bug/crash.
Use this to guide your classification and feedback:
1. If a crash was triggered (Reproduced is true):
   - Determine if the triggered crash matches the expected bug.
   - If you conclude they represent the same underlying bug (the same root cause)
     despite different titles, crash signatures, or call traces, set TitleMatches
     to true and provide a detailed, technical, and verbose explanation of the
     equivalence in the 'Feedback' field.
   - If they do not represent the same bug (a completely unrelated crash/collision),
     set TitleMatches to false and explain the collision in 'Feedback'.
   - If they match exactly, set TitleMatches to true and provide a brief confirmation in 'Feedback'.
2. If the execution was successful (exit 0) WITHOUT a crash (Reproduced is false):
   - The reproduction attempt failed to trigger the bug. Analyze the console/strace output
     to understand why the bug did not trigger (e.g., timing, input arguments, environment setup)
     and provide feedback on how to improve the reproducer logic to trigger the crash.

Critical Diagnostic Rule for Reproduction Failures:
If the reproduction attempt fails (e.g., a system call returns an error, or a
warning/error message appears in the console log), you MUST:
1. Identify the failing system call from the execution trace or strace output.
2. Identify any corresponding warning or error messages in the console log.
3. Immediately search the kernel source tree for the warning message strings or
   the code of the failing system call/subsystem to locate the validation logic.
4. Trace the kernel's validation logic to diagnose the exact constraint violation
   or input mismatch in the generated program.
5. Provide a technical diagnosis in the feedback explaining the exact kernel constraint that was violated and why.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

IsProbe: false
Reproduced: false
Console Output: [   70.125833][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   70.125842][   T33] audit: type=1400 audit(1786816336.215:201): avc:  denied  { transition } for  pid=5818 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.135149][   T33] audit: type=1400 audit(1786816336.215:202): avc:  denied  { noatsecure } for  pid=5818 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.146729][   T33] audit: type=1400 audit(1786816336.215:203): avc:  denied  { rlimitinh } for  pid=5818 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   70.155113][   T33] audit: type=1400 audit(1786816336.215:204): avc:  denied  { siginh } for  pid=5818 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.780670][ T1373] ieee802154 phy0 wpan0: encryption failed: -22
[   71.782833][ T1373] ieee802154 phy1 wpan1: encryption failed: -22
[   72.443879][   T33] audit: type=1400 audit(1786816338.535:205): avc:  denied  { write } for  pid=5826 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.490154][   T33] audit: type=1400 audit(1786816338.585:206): avc:  denied  { write } for  pid=5829 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:65517' (ED25519) to the list of known hosts.
[   73.116432][   T33] audit: type=1400 audit(1786816339.205:207): avc:  denied  { write } for  pid=5840 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.170526][   T33] audit: type=1400 audit(1786816339.265:208): avc:  denied  { write } for  pid=5843 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.207823][   T33] audit: type=1400 audit(1786816339.295:209): avc:  denied  { create } for  pid=5839 comm="syz-executor652" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   73.221540][   T33] audit: type=1400 audit(1786816339.295:210): avc:  denied  { net_raw } for  pid=5839 comm="syz-executor652" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[   75.211808][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   75.211819][   T33] audit: type=1400 audit(1786816341.305:217): avc:  denied  { write } for  pid=5864 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.294042][   T33] audit: type=1400 audit(1786816341.385:218): avc:  denied  { write } for  pid=5867 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.684753][   T33] audit: type=1400 audit(1786816341.775:219): avc:  denied  { write } for  pid=5870 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.787121][   T33] audit: type=1400 audit(1786816341.875:220): avc:  denied  { write } for  pid=5873 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.258310][   T33] audit: type=1400 audit(1786816342.345:221): avc:  denied  { write } for  pid=5876 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.363364][   T33] audit: type=1400 audit(1786816342.455:222): avc:  denied  { write } for  pid=5879 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.498019][   T33] audit: type=1400 audit(1786816342.585:223): avc:  denied  { write } for  pid=5882 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.576402][   T33] audit: type=1400 audit(1786816342.665:224): avc:  denied  { write } for  pid=5885 comm="rm" name="hook-state" dev="tmpfs" ino=1809 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   82.026492][    T9] cfg80211: failed to load regulatory.db
[+] unshare successful.
[+] Done.

Strace Output: /strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor624013804

<...>
=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=0x25 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00"], iov_len=36}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] <... sendmsg resumed>)      = 36
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] recvmsg(3 <unfinished ...>
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5859}, {error=0, msg={nlmsg_len=36, nlmsg_type=0x25 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20 <unfinished ...>
[pid  5872] futex(0x7f1c99aca990, FUTEX_WAIT_BITSET|FUTEX_CLOCK_REALTIME, 5878, NULL, FUTEX_BITSET_MATCH_ANY <unfinished ...>
[pid  5878] <... sendto resumed>)       = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sendto(5, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("wpan0"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
[pid  5878] sched_yield()               = 0
[pid  5878] close(5)                    = 0
[pid  5878] rt_sigprocmask(SIG_BLOCK, ~[RT_1], NULL, 8) = 0
[pid  5878] madvise(0x7f1c992ca000, 8372224, MADV_DONTNEED) = 0
[pid  5878] exit(0)                     = ?
[pid  5878] +++ exited with 0 +++
[pid  5872] <... futex resumed>)        = 0
[pid  5872] close(3)                    = 0
[pid  5872] rt_sigprocmask(SIG_BLOCK, ~[RT_1], NULL, 8) = 0
[pid  5872] madvise(0x7f1c9a2cc000, 8372224, MADV_DONTNEED) = 0
[pid  5872] exit(0)                     = ?
[pid  5859] <... futex resumed>)        = 0
[pid  5872] +++ exited with 0 +++
write(1, "[+] unshare successful.\n[+] Done.\n", 34) = 34
exit_group(0)                           = ?
[+] unshare successful.
[+] Done.
+++ exited with 0 +++

Crash Report: 


162/4 2026/08/15 17:56 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 178044
							output: 39
							thoughts: 555
						

Thoughts:
**My Analysis of the Reproducer Execution and the `qdisc_tree_reduce_backlog` Warning**

I've been examining the execution of a reproducer aimed at triggering a specific bug: "WARNING in `qdisc_tree_reduce_backlog`." The bug report pointed to a warning occurring in `net/sched/sch_api.c` at line 797, specifically the condition `parentid != TC_H_ROOT`.

I ran the provided reproducer, expecting to see the crash or at least the warning manifest. However, my initial observation was that it didn't reproduce the crash as expected. The console output I captured showed some interesting, though seemingly unrelated, messages:

*   `[ 71.780670][ T1373] ieee802154 phy0 wpan0: encryption failed: -22`
*   `[ 71.782833][ T1373] ieee802154 phy1 wpan1: encryption failed: -22`
*   `[ 82.026492][ T9] cfg80211: failed to load regulatory.db`

These suggest potential issues with wireless interfaces and regulatory database loading, but don't immediately explain the absence of the `qdisc_tree_reduce_backlog` warning.

Diving into the `strace` output, I observed a significant number of `sendto` calls originating from a packet socket bound to `wpan0` (specifically, AF_PACKET). These `sendto` calls were consistently returning a value of 64. Additionally, there was activity on a netlink socket, indicating a message was being sent. This packet traffic is consistent with the reproducer's intent of sending data through the network stack.

Now, I'm pausing to reconsider. The bug I'm chasing is within `qdisc_tree_reduce_backlog`, which is fundamentally tied to traffic control (tc) mechanisms and queueing disciplines (qdiscs). The reproducer's design involves creating qdiscs and then sending packets, which *should* exercise this part of the code. So, the question remains: why did it not trigger the bug?

I need to understand the specific conditions under which `qdisc_tree_reduce_backlog` is called with `parentid != TC_H_ROOT`. Looking closer at the call stack (or where the warning originates), I found this snippet:

```
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
```

This tells me that the problematic function call is being initiated by a timer within `sch_sfq.c`, specifically during `sfq_perturbation`. The SFQ (Stochastic Fair Queuing) qdisc is designed with a perturbation interval, and when its timer fires, it calls `sfq_rehash`. The `sfq_rehash` function is where packets might be dropped (if the queue is full or under certain conditions), and it's within this function that `qdisc_tree_reduce_backlog` is invoked.

My next step, therefore, is to meticulously examine the `sfq_rehash` function in `net/sched/sch_sfq.c` to pinpoint exactly how and when it leads to `qdisc_tree_reduce_backlog` being called with a non-root parent ID. This seems to be the crucial path I need to follow to understand why the reproducer, as is, isn't hitting the bug.


163/4 2026/08/15 17:56 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

164/4 2026/08/15 17:56 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 179837
							output: 42
							thoughts: 22
						

Thoughts:
**My Thought Process on `qdisc_tree_reduce_backlog`**

Alright, so the core of this is a warning that's popping up, and it's specifically located within the `qdisc_tree_reduce_backlog` function. My immediate instinct is to dive into that function and understand *why* this warning is being triggered. What is `qdisc_tree_reduce_backlog` doing, and what conditions are leading to this particular alert? I need to examine its logic, its inputs, and its expected outputs to pinpoint the source of the issue. This isn't just about silencing a message; it's about understanding the underlying behavior it's trying to flag.


165/4 2026/08/15 17:56 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

166/4 2026/08/15 17:56 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 180503
							output: 39
							thoughts: 224
						

Thoughts:
**A Deep Dive into the SFQ Perturbation Timer and Parent Qdisc Lifecycle**

I'm encountering a warning, `WARN_ON_ONCE(parentid != TC_H_ROOT);`, originating at line 797. My analysis indicates this warning fires specifically when `qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid))` returns NULL, *yet* the `parentid` in question is *not* `TC_H_ROOT`.

This immediately raises the question: why would `qdisc_lookup_rcu` return NULL? The most straightforward explanation is that the parent qdisc it's trying to find has either been destroyed or was never properly established in the first place.

However, the context of this warning is critical. It arises from `qdisc_tree_reduce_backlog`, which in turn is invoked by `sfq_rehash`, and ultimately by the `sfq_perturbation` timer. This sequence suggests a temporal race condition. If the `sfq_perturbation` timer fires *after* its parent qdisc has already been destroyed, then `qdisc_lookup_rcu` would naturally return NULL.

This leads to a more fundamental concern: if a parent qdisc is destroyed, shouldn't its child qdiscs, including the one I'm concerned with, also be destroyed? Logically, yes. But the timer might still be in a pending state, perhaps if it wasn't cancelled as effectively as it should have been during the parent's destruction, or if there's a concurrency issue allowing the timer to execute even after the parent's lifecycle has ended. My next step is to scrutinize the `sfq_perturbation` function itself to understand its cancellation mechanisms and how it interacts with the qdisc lifecycle during destruction events.


167/4 2026/08/15 17:56 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_perturbation]

Results:
map[SourceCode: 604:	static void sfq_perturbation(struct timer_list *t)
 605:	{
 606:		struct sfq_sched_data *q = timer_container_of(q, t, perturb_timer);
 607:		struct Qdisc *sch = q->sch;
 608:		spinlock_t *root_lock;
 609:		siphash_key_t nkey;
 610:		int period;
 611:	
 612:		get_random_bytes(&nkey, sizeof(nkey));
 613:		rcu_read_lock();
 614:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 615:		spin_lock(root_lock);
 616:		q->perturbation = nkey;
 617:		if (!q->filter_list && q->tail)
 618:			sfq_rehash(sch);
 619:		spin_unlock(root_lock);
 620:	
 621:		/* q->perturb_period can change under us from
 622:		 * sfq_change() and sfq_destroy().
 623:		 */
 624:		period = READ_ONCE(q->perturb_period);
 625:		if (period)
 626:			mod_timer(&q->perturb_timer, jiffies + period);
 627:		rcu_read_unlock();
 628:	}
 SourceFile:net/sched/sch_sfq.c]

168/4 2026/08/15 17:56 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 181172
							output: 37
							thoughts: 309
						

Thoughts:
**My Internal Monologue on SFQ Destruction and Timer Synchronization**

My current train of thought is focused on a potential race condition or subtle interaction within the SFQ (Stochastic Fairness Queueing) qdisc's destruction path. I'm specifically examining the interplay between `sfq_destroy`, `del_timer_sync`, and the lifecycle of the `perturb_timer`.

Here's how my thinking is unfolding:

I've noticed that `sfq_destroy` has the capability to modify `q->perturb_period` and set it to 0. This is an interesting detail, but my immediate concern shifts to the implications of `sfq_destroy` also calling `del_timer_sync(&q->perturb_timer)`. My understanding is that `del_timer_sync` is designed to block, waiting for the associated timer to complete its execution if it's currently running. This, in itself, seems like a reasonable safeguard to prevent operations on a timer that's in the process of firing.

However, my mind immediately jumps to a more complex scenario: what happens if the qdisc *isn't* explicitly being destroyed by the user, but rather its parent qdisc is destroyed? My initial intuition is that the destruction of the parent should cascade and lead to the destruction of its child qdiscs, including the SFQ instance.

This leads me to ponder the implications of qdisc grafting. If an SFQ qdisc is grafted onto a different parent, its `sch->parent` pointer is updated. But does this update fully decouple it from its original parent's lifecycle in a way that would prevent destruction if the *original* parent is destroyed? My current understanding is that qdiscs *are* destroyed when their parent is destroyed. This seems like a fundamental aspect of the qdisc hierarchy.

The critical juncture for my concern arises when I consider the possibility of the `perturb_timer` firing *concurrently* with the qdisc being destroyed. I'm tracing the execution flow, and I see that `sfq_destroy` is indeed invoked by `qdisc_destroy`. My thinking is now leading me to dive deeper into the specifics of `qdisc_destroy` to understand precisely how it handles the destruction of child qdiscs and the timing of timer synchronization calls within that broader destruction process. I need to confirm if the `del_timer_sync` call within `sfq_destroy` is sufficient to prevent issues if the timer handler itself is being reaped or if the qdisc structure it operates on is being deallocated concurrently.

My focus is on uncovering any potential for a state where the timer handler might execute after `sfq_destroy` has already modified `q->perturb_period` or even begun deallocating the qdisc structure, leading to a use-after-free or similar corruption. This is why I'm directing my attention to the `qdisc_destroy` function itself – it's the orchestrator of this destruction process, and its internal logic will be key to understanding the full picture.


169/4 2026/08/15 17:56 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_destroy]

Results:
map[SourceCode:1133:	void qdisc_destroy(struct Qdisc *qdisc)
1134:	{
1135:		if (qdisc->flags & TCQ_F_BUILTIN)
1136:			return;
1137:	
1138:		__qdisc_destroy(qdisc);
1139:	}
 SourceFile:net/sched/sch_generic.c]

170/4 2026/08/15 17:56 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 181621
							output: 38
							thoughts: 22
						

Thoughts:
**My Thought Process Regarding `__qdisc_destroy`**

Ah, so it seems my initial assumption about the location of `__qdisc_destroy` was a bit off. I was just rummaging through my mental index of kernel functions, specifically those related to queueing disciplines, and I had a fleeting thought that it might be tucked away in a different corner of the network stack. However, a quick mental check – or perhaps a rapid internal search, if you will – has pinpointed its actual residence. I've just realized that `__qdisc_destroy` is located within `net/sched/sch_generic.c`. This is a crucial detail, of course, as understanding the exact file where a function resides is fundamental to tracing its execution flow, identifying its dependencies, and ultimately, comprehending its role within the broader network scheduler framework. It's like knowing the specific library and chapter a particular theorem is found in; it grounds the abstract concept in tangible code.


171/4 2026/08/15 17:56 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

172/4 2026/08/15 17:56 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 182063
							output: 37
							thoughts: 469
						

Thoughts:
**My Thought Process Regarding the Race Condition in Qdisc Destruction**

Alright, let's walk through what I'm observing here. My immediate attention is drawn to the ordering of operations when a qdisc is being destroyed, specifically the sequence involving `qdisc_hash_del(qdisc)` and `ops->destroy(qdisc)`.

I've noted that `qdisc_hash_del` is executed *before* `ops->destroy`. This makes sense, as `qdisc_hash_del` is responsible for removing the qdisc from its hash table, effectively making it inaccessible via direct lookup.

Now, consider the scenario where `qdisc_tree_reduce_backlog` is running concurrently. My initial thought is that `qdisc_tree_reduce_backlog` uses `qdisc_lookup_rcu` to find qdiscs, and if the parent qdisc is in the process of being destroyed, it would have already been removed from the hash table by `qdisc_hash_del`. This seems problematic.

However, I'm realizing that `qdisc_tree_reduce_backlog` doesn't look up the *qdisc itself* being destroyed; it looks up the *parent qdisc*. This is a crucial distinction. If the parent qdisc is indeed being destroyed, it *will* be removed from the hash table first. Following that, its `ops->destroy` function will be invoked.

The crux of the issue arises when the parent qdisc's `destroy` function subsequently calls `qdisc_destroy` on its children (for example, an SFQ qdisc). At this point, the parent qdisc has been removed from the hash table, but its children haven't necessarily been destroyed yet. This creates a window of opportunity: if a child's timer (in the SFQ example, triggering `sfq_perturbation`) fires during this precise interval, it will attempt to rehash or reduce its backlog.

This rehash operation, specifically within `sfq_perturbation` leading to `sfq_rehash` and then `qdisc_tree_reduce_backlog`, will perform a lookup for the *parent* qdisc. Since the parent has already been removed from the hash table, this lookup will fail. This failure to find the expected parent is what triggers the warning message I'm seeing.

To solidify this hypothesis, I'm envisioning the sequence of events like this:

1.  The parent qdisc enters its destruction phase.
2.  `qdisc_hash_del(parent)` is executed, removing it from the hash table.
3.  The parent's `ops->destroy` function is called.
4.  *Concurrently*, a child qdisc's timer fires.
5.  This timer callback leads to `sfq_perturbation`, which attempts to acquire a lock. My immediate question is: what lock is `sfq_perturbation` acquiring? It seems to be `root_lock = qdisc_lock(qdisc_root_sleeping(sch));`.
6.  A key question arises: is this `root_lock` being held while the parent is being destroyed? Typically, `qdisc_destroy` is called while the RTNL lock is held, but not necessarily the `root_lock`.
7.  I also need to re-examine the pre-destroy steps. Before `ops->destroy` is called, `qdisc_reset` is invoked. Does `qdisc_reset` acquire the `root_lock`? My understanding is that it might not necessarily do so.

This detailed breakdown of the sequence, the dependencies, and the potential concurrency seems to pinpoint the race condition I'm observing.


173/4 2026/08/15 17:56 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_reset]

Results:
map[SourceCode:1072:	void qdisc_reset(struct Qdisc *qdisc)
1073:	{
1074:		const struct Qdisc_ops *ops = qdisc->ops;
1075:	
1076:		trace_qdisc_reset(qdisc);
1077:	
1078:		if (ops->reset)
1079:			ops->reset(qdisc);
1080:	
1081:		__skb_queue_purge(&qdisc->gso_skb);
1082:		__skb_queue_purge(&qdisc->skb_bad_txq);
1083:	
1084:		WRITE_ONCE(qdisc->q.qlen, 0);
1085:		WRITE_ONCE(qdisc->qstats.backlog, 0);
1086:	}
 SourceFile:net/sched/sch_generic.c]

174/4 2026/08/15 17:56 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 182807
							output: 38
							thoughts: 62
						

Thoughts:
**A Deep Dive into `qdisc_reset` and Potential Locking Issues**

My initial understanding was that `qdisc_reset` itself doesn't acquire the `root_lock`. This seems straightforward enough, as a reset operation on a queue discipline's root wouldn't necessarily need exclusive access to the entire root structure if it's just clearing its own internal state.

However, I'm now having a moment of doubt, or rather, a critical re-evaluation. I know that `qdisc_reset` is a generic function, and its actual work is delegated to the specific queue discipline's implementation via the `ops->reset` function pointer. This is where the potential issue lies. What if the *specific* `ops->reset` implementation for a particular queue discipline, like SFQ (Stochastic Fairness Queueing), *does* acquire the `root_lock`?

My immediate thought is to trace this execution path. If `qdisc_reset` calls `ops->reset`, and for SFQ, `ops->reset` points to `sfq_reset`, then the crucial question becomes: does `sfq_reset` itself take the `root_lock`? This is precisely what I need to verify next. I'll be looking into the `sfq_reset` function's implementation to determine its locking behavior.


175/4 2026/08/15 17:57 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_reset]

Results:
map[SourceCode: 519:	static void
 520:	sfq_reset(struct Qdisc *sch)
 521:	{
 522:		struct sk_buff *skb;
 523:	
 524:		while ((skb = sfq_dequeue(sch)) != NULL)
 525:			rtnl_kfree_skbs(skb, skb);
 526:	}
 SourceFile:net/sched/sch_sfq.c]

176/4 2026/08/15 17:57 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 183029
							output: 38
							thoughts: 1444
						

Thoughts:
**A Deep Dive into the `sfq_rehash` and `qdisc_lookup_rcu` Race Condition**

Okay, I've been tracing a really interesting bug, and I think I've nailed down the root cause. It all hinges on a specific race condition involving the `sfq_perturbation` timer and the destruction of a parent qdisc, like HTB.

Here's how my thought process unfolded:

Initially, I was looking at `sfq_reset`, thinking it was involved, but I quickly realized it just dequeues packets and doesn't hold the `root_lock`. That wasn't the problem.

The real clue came when I considered the lifecycle of a qdisc and how it gets destroyed. I know that `qdisc_destroy` is typically called when a qdisc's reference count drops to zero, and crucially, this usually happens under the RTNL lock. However, the `sfq_perturbation` timer operates in a softirq context, and importantly, it *does* acquire the `root_lock`.

Now, let's imagine a scenario where a parent qdisc, let's say HTB, is being destroyed. When `qdisc_destroy` is called on the parent HTB, it's responsible for removing itself from the qdisc hash table. Then, it calls the parent's specific `destroy` operation. For HTB, this `htb_destroy` function is key because it iterates through its classes and, in doing so, destroys any child qdiscs.

This is where it gets dicey. When `htb_destroy` destroys a class, it calls `qdisc_put` on the child qdisc, which in this case is our SFQ. `qdisc_put` will, in turn, call `qdisc_destroy` on the SFQ. The `qdisc_destroy` for SFQ involves calling `sfq_hash_del` to remove it from the hash table, and then it proceeds to `sfq_destroy`. A critical part of `sfq_destroy` is calling `del_timer_sync(&q->perturb_timer)`.

Here's the core of the race: it's absolutely possible for the `sfq_perturbation` timer to fire *after* the parent (HTB) has been removed from the hash table by `qdisc_hash_del(parent)` but *before* `del_timer_sync(&q->perturb_timer)` has completed its work.

If the timer fires within this narrow window, it will trigger `sfq_rehash`. `sfq_rehash`'s job is to manage the SFQ's internal state, and a part of that involves calling `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`. Inside `qdisc_tree_reduce_backlog`, the code attempts to look up the parent qdisc using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`.

But remember, the parent HTB was *just* removed from the hash table by the destruction process. So, `qdisc_lookup_rcu` will return `NULL`. This is precisely where the `WARN_ON_ONCE(parentid != TC_H_ROOT)` statement gets hit, and we see the bug report. This perfectly explains the observed behavior.

To reliably reproduce this, I figured out the necessary conditions:
1.  We need a parent qdisc capable of having children, such as HTB, CBQ, or DRR.
2.  We need an SFQ qdisc attached as a child to this parent. Crucially, the SFQ must have its perturbation timer enabled.
3.  We need at least one packet enqueued to the SFQ. My initial thought was that `sfq_rehash` needed to drop packets to trigger `qdisc_tree_reduce_backlog` with a non-zero `dropped` count. However, a closer look at `qdisc_tree_reduce_backlog` showed that even if `n` (which comes from `dropped`) is 0, the loop still executes and attempts to look up the parent. `sfq_rehash` is called if the SFQ has a non-empty tail, meaning at least one packet is present. So, just enqueuing a single packet is sufficient.

Then, the race window can be triggered by:
*   **Thread 1 (User/Netlink):**
    *   Create a parent HTB qdisc.
    *   Create a class under the HTB.
    *   Create an SFQ qdisc as the leaf of that class, setting a small perturbation interval (e.g., 1 second).
    *   Enqueue a single packet to the SFQ.
    *   Initiate the deletion of the HTB qdisc. This leads to `qdisc_destroy(htb)`, which calls `qdisc_hash_del(htb)`, removing it from the hash table. This is where the race can begin.
    *   The subsequent calls (`htb_destroy` -> `qdisc_put(sfq)` -> `qdisc_destroy(sfq)` -> `sfq_destroy` -> `del_timer_sync`) are where the thread can be preempted or delayed.

*   **Thread 2 (SoftIRQ):**
    *   The `sfq_perturbation` timer fires. This timer acquires the `root_lock`. Importantly, since the parent HTB destruction is happening under the RTNL lock and *not* the `root_lock`, the timer can acquire `root_lock` unimpeded.
    *   The timer calls `sfq_rehash`.
    *   `sfq_rehash` calls `qdisc_tree_reduce_backlog`.
    *   `qdisc_tree_reduce_backlog` attempts to find the parent HTB in the hash table.
    *   The parent HTB is not found, leading to the `WARN_ON_ONCE`.

The key to reliably triggering this is the asynchronous nature of the timer and the fact that the parent's removal from the hash table happens relatively quickly after the deletion command is issued, creating a small but exploitable window. Repeatedly performing the creation and deletion sequence should eventually hit this race condition.


177/4 2026/08/15 17:57 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

178/4 2026/08/15 17:57 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 186473
							output: 36
							thoughts: 1977
						

Thoughts:
**My Thoughts on Exploiting the SFQ Perturbation Race**

I've been digging into this SFQ perturbation issue, and it seems like the core of the problem lies in a race condition. The `perturb_period` for SFQ is defined in seconds, meaning the timer will fire at least one second after it's set. My initial thought was to create an HTB qdisc, then an SFQ qdisc nested within it, send a packet, wait for roughly a second, and then delete the HTB qdisc just as the SFQ perturbation timer is about to fire. This timing is crucial because the timer triggers `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. If the parent HTB qdisc is gone by the time `sfq_rehash` tries to access it, we've got a problem.

I considered using `tc` commands via `system()` calls, but I quickly realized that the overhead and jitter involved would make it incredibly difficult to hit such a tight race window. The race appears to be between the removal of the HTB qdisc from the hash table and the destruction of the SFQ qdisc. This happens in very few instructions.

My next idea was to use `timerfd` or similar mechanisms to get precise timing, but that felt like overcomplicating it. A more pragmatic approach came to mind: instead of relying on precise timing in a single thread, what if I could create a situation where the HTB qdisc *takes a long time to destroy*?

I started looking at how HTB is destroyed. The `htb_destroy` function iterates through all its classes. If I can create an HTB qdisc with a *massive* number of child classes, then when `qdisc_destroy` is called on the HTB, the `htb_destroy` function will have to loop through all those classes before it's fully gone. This significantly widens the window between the HTB being removed from the qdisc hash and the SFQ qdisc being destroyed.

So, the refined plan is:

1.  **Create a dummy network device.** This gives us something to attach qdiscs to.
2.  **Set up a parent HTB qdisc.** The crucial part here is to add a *huge* number of child classes to this HTB qdisc. I'm thinking thousands, maybe tens of thousands, to ensure `htb_destroy` takes a noticeable amount of time.
3.  **Nest an SFQ qdisc within the last HTB class.** I'll set its `perturb` value to 1 second.
4.  **Send a packet.** This packet needs to get enqueued in the SFQ qdisc. I'll need to ensure the HTB rate is very low (like `rate 8bit`) so the packet doesn't get dequeued too quickly. I might also need to play with the device state (e.g., carrier down) if simply setting a low rate isn't enough.
5.  **Trigger the deletion of the HTB qdisc.** This is the action that initiates the long `htb_destroy` process. The SFQ perturbation timer, set to fire in ~1 second, will eventually fire during this protracted destruction.

The key insight is that `sfq_perturbation` runs in a softirq context and doesn't hold the RTNL lock, while `qdisc_destroy` (which calls `htb_destroy`) *does* hold the RTNL lock. This allows them to run concurrently. By making `htb_destroy` take a very long time, I'm creating a much larger window for the SFQ timer to fire and hit the race condition within `qdisc_tree_reduce_backlog` while the parent HTB is in the process of being destroyed. This approach avoids the need for extremely precise, low-level timing and relies on a predictable widening of the race window. I'll likely use raw netlink for creation and deletion rather than `system()` calls for better performance and control, although the syzkaller reproducer might have used `system()`.


179/4 2026/08/15 17:57 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy]

Results:
map[SourceCode:1618:	static void htb_destroy(struct Qdisc *sch)
1619:	{
1620:		struct net_device *dev = qdisc_dev(sch);
1621:		struct tc_htb_qopt_offload offload_opt;
1622:		struct htb_sched *q = qdisc_priv(sch);
1623:		struct hlist_node *next;
1624:		bool nonempty, changed;
1625:		struct htb_class *cl;
1626:		unsigned int i;
1627:	
1628:		cancel_work_sync(&q->work);
1629:		qdisc_watchdog_cancel(&q->watchdog);
1630:		/* This line used to be after htb_destroy_class call below
1631:		 * and surprisingly it worked in 2.4. But it must precede it
1632:		 * because filter need its target class alive to be able to call
1633:		 * unbind_filter on it (without Oops).
1634:		 */
1635:		tcf_block_put(q->block);
1636:	
1637:		for (i = 0; i < q->clhash.hashsize; i++) {
1638:			hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
1639:				tcf_block_put(cl->block);
1640:				cl->block = NULL;
1641:			}
1642:		}
1643:	
1644:		do {
1645:			nonempty = false;
1646:			changed = false;
1647:			for (i = 0; i < q->clhash.hashsize; i++) {
1648:				hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
1649:							  common.hnode) {
1650:					bool last_child;
1651:	
1652:					if (!q->offload) {
1653:						htb_destroy_class(sch, cl);
1654:						continue;
1655:					}
1656:	
1657:					nonempty = true;
1658:	
1659:					if (cl->level)
1660:						continue;
1661:	
1662:					changed = true;
1663:	
1664:					last_child = htb_parent_last_child(cl);
1665:					htb_destroy_class_offload(sch, cl, last_child,
1666:								  true, NULL);
1667:					qdisc_class_hash_remove(&q->clhash,
1668:								&cl->common);
1669:					if (cl->parent)
1670:						cl->parent->children--;
1671:					if (last_child)
1672:						htb_parent_to_leaf(sch, cl, NULL);
1673:					htb_destroy_class(sch, cl);
1674:				}
1675:			}
1676:		} while (changed);
1677:		WARN_ON(nonempty);
1678:	
1679:		qdisc_class_hash_destroy(&q->clhash);
1680:		__qdisc_reset_queue(&q->direct_queue);
1681:	
1682:		if (q->offload) {
1683:			offload_opt = (struct tc_htb_qopt_offload) {
1684:				.command = TC_HTB_DESTROY,
1685:			};
1686:			htb_offload(dev, &offload_opt);
1687:		}
1688:	
1689:		if (!q->direct_qdiscs)
1690:			return;
1691:		for (i = 0; i < q->num_direct_qdiscs && q->direct_qdiscs[i]; i++)
1692:			qdisc_put(q->direct_qdiscs[i]);
1693:		kfree(q->direct_qdiscs);
1694:	}
 SourceFile:net/sched/sch_htb.c]

180/4 2026/08/15 17:57 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 189643
							output: 39
							thoughts: 2331
						

Thoughts:
**The Path to Reproducing the SFQ Timer Bug**

My objective here is to find a reliable way to trigger a specific bug related to the `htb` (Hierarchical Token Bucket) queuing discipline and its interaction with `sfq` (Stochastic Fairness Queuing). The core of the problem seems to stem from the timing of `sfq` timers firing *after* the `htb` qdisc has been removed from the kernel's qdisc hash table, but *before* the `sfq` instances themselves have been fully destroyed. This scenario leads to a situation where the SFQ timer callback attempts to operate on a non-existent HTB qdisc, triggering a warning.

Initially, I recalled that `htb_destroy` iterates through all its classes, calling `htb_destroy_class` for each. My immediate thought was that if I create a large number of classes (say, 10,000), this destruction process would naturally take a significant amount of time. This prolonged destruction period is key, as it increases the window during which an `sfq` timer could fire.

Then, I focused on `htb_destroy_class`, which calls `qdisc_put(cl->leaf)`. This is where the `sfq` comes into play. If an `sfq` is associated with a class that is among the last to be destroyed, its timer has a higher chance of firing during the destruction phase.

My initial idea was simply to add 10,000 classes. The ordering within the `q->clhash` (a hash table) is not guaranteed, so I couldn't rely on a specific class being destroyed last. However, the problem arises if *any* `sfq` timer fires during this window. Even having just one `sfq` with an active timer would be sufficient.

So, I considered a scenario where I add 10,000 classes, each with its own `sfq` configured with `perturb 1`. When the HTB qdisc is deleted, `htb_destroy` is invoked. Crucially, `qdisc_hash_del(htb)` is called *before* the `ops->destroy` function in `__qdisc_destroy`. This means the HTB qdisc is already gone from the hash table. If an `sfq` timer fires *after* this point, its callback (`sfq_rehash`) will eventually call `qdisc_tree_reduce_backlog`. This function will attempt to look up the HTB qdisc in the hash table, fail (because it's already deleted), and that's precisely where the warning I'm looking for will be triggered. This seemed like a robust way to reproduce the bug.

To implement this, I thought about using a bash script. However, the requirement is for a C program reproducer. I could use `system()` to execute a bash script, but writing the netlink code directly is also an option. For this specific setup, a bash script executed via `system()` felt less error-prone and simpler to orchestrate. I first considered using `tc` batch mode to set up the scenario.

I started sketching out a C program to generate the bash script. This involved adding a dummy interface, creating an HTB qdisc, and then adding a large number of classes, each with an `sfq` attached.

```c
#include <stdlib.h>
#include <stdio.h>

int main() {
    FILE *f = fopen("setup.sh", "w");
    fprintf(f, "#!/bin/bash\n");
    fprintf(f, "ip link add dev dummy0 type dummy\n");
    fprintf(f, "ip link set dev dummy0 up\n");
    fprintf(f, "tc qdisc add dev dummy0 root handle 1: htb default 1\n");
    fprintf(f, "echo 'Adding classes...'\n");
    fprintf(f, "for i in {1..1000}; do\n"); // Started with 1000, thinking of increasing
    fprintf(f, "  echo \"class add dev dummy0 parent 1: classid 1:$(printf '%%x' $i) htb rate 1kbit\"\n");
    fprintf(f, "  echo \"qdisc add dev dummy0 parent 1:$(printf '%%x' $i) handle $(printf '%%x' $((i+1))): sfq perturb 1\"\n");
    fprintf(f, "done > batch.txt\n");
    fprintf(f, "tc -b batch.txt\n");
    fprintf(f, "echo 'Sending packets...'\n");
    // Now, sending packets is important. The SFQ timers fire based on packet activity.
    // If all packets go to the default class (1:1), only one SFQ will get traffic.
    // This is sufficient, as we only need *one* timer to fire during the HTB destruction window.
    fprintf(f, "tc qdisc change dev dummy0 root handle 1: htb default 1000\n"); // Wait, default class is hex? No, let's stick to 1.
    // Ah, if default is 1, it means 1:1. Let's make 1:1 the one with SFQ.
    // And add many other classes to slow down htb_destroy.
    fprintf(f, "echo 'Deleting HTB...'\n");
    fprintf(f, "sleep 0.5\n"); // A short delay to allow timers to get close to firing.
    fprintf(f, "tc qdisc del dev dummy0 root\n");
    fclose(f);
    system("bash setup.sh");
    return 0;
}
```

A key realization then struck me: the order in which `htb_destroy` destroys classes from the hash table isn't predictable. To ensure the bug is triggered, I need to make sure that *at least one* SFQ timer fires while the HTB destruction is in progress. The simplest way to guarantee this is to ensure that packets are sent to *all* the SFQs.

How could I send packets to all SFQs? I could use `tc filter add` rules, but that seemed overly complex. A more direct approach would be to leverage `SO_PRIORITY` in a C program that sends UDP packets. The `skb->priority` field is used by HTB for classification when no explicit filters match, and I can set `SO_PRIORITY` to map directly to a class ID like `1:X`. This would direct the packets to the corresponding SFQ.

This led me to refine the C program:

```c
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
#include <pthread.h> // Initially considered threads, but decided against it for simplicity

void setup() {
    system("ip link add dev dummy0 type dummy");
    system("ip link set dev dummy0 up");
    system("tc qdisc add dev dummy0 root handle 1: htb default 1"); // Default to 1:1
    
    FILE *f = fopen("batch.txt", "w");
    for (int i = 1; i <= 2000; i++) { // Increased class count
        fprintf(f, "class add dev dummy0 parent 1: classid 1:%x htb rate 1kbit\n", i);
        fprintf(f, "qdisc add dev dummy0 parent 1:%x handle %x: sfq perturb 1\n", i, i + 1);
    }
    fclose(f);
    system("tc -b batch.txt"); // Use batch mode for efficiency
}

void send_packets() {
    int s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
    struct sockaddr_in sin = {0};
    sin.sin_family = AF_INET;
    sin.sin_port = htons(1234);
    sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
    
    // Bind to dummy0 to ensure packets go to the right interface
    setsockopt(s, SOL_SOCKET, SO_BINDTODEVICE, "dummy0", 6);
    
    for (int i = 1; i <= 2000; i++) {
        int prio = 0x10000 | i; // Constructing the priority for class 1:i
        setsockopt(s, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
        sendto(s, "hello", 5, 0, (struct sockaddr*)&sin, sizeof(sin));
    }
    close(s);
}

int main() {
    setup();
    send_packets();
    // The SFQ timers are set for 1 second. We need to delete the HTB qdisc
    // when these timers are close to firing.
    // Creating qdiscs and sending packets takes time.
    usleep(500000); // A 0.5s delay might not be enough if tc batch is slow.
    system("tc qdisc del dev dummy0 root");
    return 0;
}
```

The timing here is critical. If `tc -b` takes a considerable amount of time (e.g., if I were to use 10,000 classes), and then sending packets also takes time, followed by a short `usleep`, the total elapsed time might still be less than the 1-second SFQ timer. If the HTB qdisc is destroyed *before* the SFQ timers fire, the timers will be cancelled by `del_timer_sync`, and the bug won't manifest.

Therefore, I need to ensure the HTB destruction overlaps with the SFQ timer firing. A simple adjustment is to increase the `usleep` duration to, say, 0.9 seconds.

However, there's a slight ambiguity. The `sfq_rehash` function, which is what the timer callback leads to, only calls `qdisc_tree_reduce_backlog` if `dropped > 0`. I need to ensure some packets are indeed dropped or at least processed in a way that triggers this. The current setup with `perturb 1` and sending packets should facilitate this. The main concern remains ensuring the `htb_destroy` process is active precisely when the SFQ timers are scheduled to fire. Using a larger number of classes and a carefully chosen sleep duration seems to be the most direct way to achieve this timing window.


181/4 2026/08/15 17:58 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

182/4 2026/08/15 17:58 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 193212
							output: 39
							thoughts: 484
						

Thoughts:
**My Thought Process Regarding `qdisc_tree_reduce_backlog` and Potential Warnings**

Okay, so I've been scrutinizing this piece of code, specifically the unconditional call to `qdisc_tree_reduce_backlog(sch, dropped, drop_len);` at the end of `sfq_rehash`, even when `dropped` is zero. My initial concern is that `qdisc_tree_reduce_backlog` itself will attempt to look up its parent qdisc, even if there were no drops (`n == 0`, which is `dropped`). This lookup logic, as shown in the provided snippet, involves traversing up the qdisc hierarchy.

The core of my worry lies within this loop:

```c
	rcu_read_lock();
	while ((parentid = sch->parent)) {
		if (parentid == TC_H_ROOT)
			break;

		if (sch->flags & TCQ_F_NOPARENT)
			break;
		/* Notify parent qdisc only if child qdisc becomes empty. */
		notify = !sch->q.qlen;
		/* TODO: perform the search on a per txq basis */
		sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
		if (sch == NULL) {
			WARN_ON_ONCE(parentid != TC_H_ROOT);
			break;
		}
```

Specifically, the `if (sch == NULL)` block followed by `WARN_ON_ONCE(parentid != TC_H_ROOT);` is what's flagging my attention. If `qdisc_lookup_rcu` fails to find the parent qdisc, and the `parentid` isn't `TC_H_ROOT`, then this warning will fire.

Now, I'm asking myself if there are scenarios where this *could* happen. I've considered the `TCQ_F_NOPARENT` flag, and I'm fairly certain that SFQ itself doesn't set this.

However, the more pressing question is about how qdiscs are grafted onto classes, particularly with a scheduler like HTB. When a qdisc is grafted onto an HTB class, `sch->parent` is indeed set to the classid (e.g., `1:1`). When `qdisc_tree_reduce_backlog` processes this, it will use `TC_H_MAJ(parentid)` to find the parent. In the HTB example, `TC_H_MAJ(1:1)` would resolve to the HTB qdisc's handle, which is something like `1:0`.

If, for some reason, the HTB qdisc (e.g., `1:0`) has been removed from the qdisc hash table *before* this parent lookup happens in `qdisc_tree_reduce_backlog`, then `qdisc_lookup_rcu` would return `NULL`. And since the `parentid` (`1:1` in this case) is not `TC_H_ROOT`, the `WARN_ON_ONCE` condition becomes true. This is precisely the scenario that could trigger an unexpected warning.

This leads me to think I need to re-examine the `qdisc_hash_del` function to understand the exact timing and conditions under which a qdisc might be removed from the hash table while its children are still attempting to notify their parents.


183/4 2026/08/15 17:58 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_hash_del]

Results:
map[SourceCode: 293:	void qdisc_hash_del(struct Qdisc *q)
 294:	{
 295:		if ((q->parent != TC_H_ROOT) && !(q->flags & TCQ_F_INGRESS)) {
 296:			ASSERT_RTNL();
 297:			hash_del_rcu(&q->hash);
 298:		}
 299:	}
 SourceFile:net/sched/sch_api.c]

184/4 2026/08/15 17:58 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 193856
							output: 39
							thoughts: 149
						

Thoughts:
**My Realization about HTB and the qdisc Hash**

My initial thought process was triggered by a crucial observation: the `qdisc_hash_del` function exhibits peculiar behavior. It *only* removes a qdisc from the hash table if its parent is *not* `TC_H_ROOT`. This immediately raised a red flag because, in the context of HTB, it *is* the root qdisc, meaning its parent *is* `TC_H_ROOT`.

This led me to deduce that calling `qdisc_hash_del` on an HTB instance, precisely because it's the root, will effectively do *nothing* in terms of removing it from the hash table.

The immediate implication of this inaction is concerning: if the HTB qdisc isn't actually removed from the hash table, then subsequent lookups using `qdisc_lookup_rcu` will *still* find it. This is a critical flaw, as it suggests potential stale or incorrect qdisc references persisting in the system.

To fully understand the scope of this issue, I knew I had to investigate how qdiscs are added to the hash table in the first place. My next step, therefore, is to carefully examine the `qdisc_hash_add` function to see how it interacts with the root qdisc and what guarantees, if any, it provides regarding its presence in the hash.


185/4 2026/08/15 17:58 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_hash_add]

Results:
map[SourceCode: 282:	void qdisc_hash_add(struct Qdisc *q, bool invisible)
 283:	{
 284:		if ((q->parent != TC_H_ROOT) && !(q->flags & TCQ_F_INGRESS)) {
 285:			ASSERT_RTNL();
 286:			hash_add_rcu(qdisc_dev(q)->qdisc_hash, &q->hash, q->handle);
 287:			if (invisible)
 288:				q->flags |= TCQ_F_INVISIBLE;
 289:		}
 290:	}
 SourceFile:net/sched/sch_api.c]

186/4 2026/08/15 17:58 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 194214
							output: 40
							thoughts: 43
						

Thoughts:
**A Revelation About Root Qdiscs and Their Lookup Mechanism**

My initial understanding was that all qdiscs, regardless of their nature, would be managed within a central hash table. This was my foundational assumption as I considered how the system would efficiently locate and retrieve specific qdiscs. However, a critical observation has just struck me: root qdiscs are, in fact, *not* added to this hash table.

This realization immediately triggers a cascade of questions, the most pressing of which is: if root qdiscs bypass the hash table mechanism, how then does the `qdisc_lookup_rcu` function manage to find them? My mental model is being challenged, and I need to reconcile this apparent discrepancy. The standard lookup procedure I anticipated clearly doesn't apply directly to root qdiscs. This implies there must be a distinct, perhaps more direct or specialized, pathway for `qdisc_lookup_rcu` to access these root-level structures. I'm now keen to understand the alternative data structures or lookup strategies that are employed for root qdiscs, and how they integrate with the broader qdisc management system, particularly in the context of RCU (Read-Copy Update) synchronization. This is a significant detail that requires further investigation to fully grasp the intricacies of qdisc handling.


187/4 2026/08/15 17:58 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_lookup_rcu]

Results:
map[SourceCode: 320:	struct Qdisc *qdisc_lookup_rcu(struct net_device *dev, u32 handle)
 321:	{
 322:		struct netdev_queue *nq;
 323:		struct Qdisc *q;
 324:	
 325:		if (!handle)
 326:			return NULL;
 327:		q = qdisc_match_from_root(rcu_dereference(dev->qdisc), handle);
 328:		if (q)
 329:			goto out;
 330:	
 331:		nq = dev_ingress_queue_rcu(dev);
 332:		if (nq)
 333:			q = qdisc_match_from_root(rcu_dereference(nq->qdisc_sleeping),
 334:						  handle);
 335:	out:
 336:		return q;
 337:	}
 SourceFile:net/sched/sch_api.c]

188/4 2026/08/15 17:58 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 194562
							output: 41
							thoughts: 20
						

Thoughts:
**My Thought Process Regarding `qdisc_lookup_rcu` and `qdisc_match_from_root`**

Okay, so my initial observation, when diving into this particular section of the code, is a direct dependency: `qdisc_lookup_rcu` isn't just a standalone function; it's immediately invoking `qdisc_match_from_root`. This tells me that the core logic, the *actual work* of finding or identifying a specific queueing discipline (qdisc) within the RCU (Read-Copy Update) context, is offloaded or delegated to `qdisc_match_from_root`.

From my perspective as an expert, this suggests a clear separation of concerns, which is generally a good design principle. `qdisc_lookup_rcu` likely handles the RCU-specific aspects – perhaps the safe retrieval of the root qdisc structure under RCU protection mechanisms, ensuring that the underlying data structures aren't being modified concurrently in an unsafe manner. It's the gatekeeper for accessing the relevant data safely.

Then, `qdisc_match_from_root` takes over. This is where the actual *matching* happens. What does "matching" mean in this context? It implies that there's some criteria being applied to identify a particular qdisc. This could be by its identifier, its type, its parent, or some other characteristic. This function is therefore likely responsible for traversing the qdisc tree (or whatever structure is in place) starting from the root, and applying these matching rules.

So, my internal monologue is essentially: "Alright, `qdisc_lookup_rcu` is the RCU-aware entry point. It sets the stage for a safe lookup. Once that's established, it passes the baton to `qdisc_match_from_root` to perform the actual selection based on the query's parameters. The heavy lifting of the *search* is in `qdisc_match_from_root`, while `qdisc_lookup_rcu` is about enabling that search to be done safely in a concurrent, RCU-protected environment." It's a clear pipeline: RCU safety first, then the specific lookup logic.


189/4 2026/08/15 17:58 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_match_from_root]

Results:
map[SourceCode: 263:	static struct Qdisc *qdisc_match_from_root(struct Qdisc *root, u32 handle)
 264:	{
 265:		struct Qdisc *q;
 266:	
 267:		if (!qdisc_dev(root))
 268:			return (root->handle == handle ? root : NULL);
 269:	
 270:		if (!(root->flags & TCQ_F_BUILTIN) &&
 271:		    root->handle == handle)
 272:			return root;
 273:	
 274:		hash_for_each_possible_rcu(qdisc_dev(root)->qdisc_hash, q, hash, handle,
 275:					   lockdep_rtnl_is_held()) {
 276:			if (q->handle == handle)
 277:				return q;
 278:		}
 279:		return NULL;
 280:	}
 SourceFile:net/sched/sch_api.c]

190/4 2026/08/15 17:58 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 194897
							output: 38
							thoughts: 106
						

Thoughts:
**My Thought Process Regarding Queueing Discipline Matching**

Alright, let's break down how I'm understanding the `qdisc_match_from_root` function and its implications. My primary focus is on how the root queueing discipline (qdisc) is located.

My initial thought is that `qdisc_match_from_root` starts with a very straightforward check: does the `handle` I'm looking for match the `handle` of the `root` qdisc itself? If there's a direct hit, great, I've found it and can return the `root` immediately. This is the most efficient path, naturally.

However, if the `handle` doesn't match the `root` directly, my next step, based on my understanding of the function's logic, is to consult a hash table. This implies that the root qdisc isn't the *only* place we look, or that there's a mechanism for looking up qdiscs based on their handles beyond just the root.

The crucial insight for me here is that the `dev->qdisc` pointer is how the *actual* root qdisc for a given device is accessed. This makes perfect sense; the device structure should logically point to its primary qdisc.

This then naturally leads to the question: "When does this `dev->qdisc` pointer get updated?" If I need to find the root qdisc, I need to know when its identity might change. My immediate thought goes to operations that fundamentally alter the qdisc hierarchy. The functions `tc_modify_qdisc` and `qdisc_graft` immediately come to mind as prime candidates for such modifications.

Given that `qdisc_graft` seems like a very direct way to replace or attach qdiscs, I'm now going to dive into the `qdisc_graft` implementation to understand precisely how it might influence `dev->qdisc` and, consequently, what `qdisc_match_from_root` would encounter. This seems like the most direct path to understanding the dynamic nature of the root qdisc.


191/4 2026/08/15 17:59 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_graft]

Results:
map[SourceCode:1091:	static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
1092:			       struct sk_buff *skb, struct nlmsghdr *n, u32 classid,
1093:			       struct Qdisc *new, struct Qdisc *old,
1094:			       struct netlink_ext_ack *extack)
1095:	{
1096:		struct Qdisc *q = old;
1097:		struct net *net = dev_net(dev);
1098:	
1099:		if (parent == NULL) {
1100:			unsigned int i, num_q, ingress;
1101:			struct netdev_queue *dev_queue;
1102:	
1103:			ingress = 0;
1104:			num_q = dev->num_tx_queues;
1105:			if ((q && q->flags & TCQ_F_INGRESS) ||
1106:			    (new && new->flags & TCQ_F_INGRESS)) {
1107:				ingress = 1;
1108:				dev_queue = dev_ingress_queue(dev);
1109:				if (!dev_queue) {
1110:					NL_SET_ERR_MSG(extack, "Device does not have an ingress queue");
1111:					return -ENOENT;
1112:				}
1113:	
1114:				q = rtnl_dereference(dev_queue->qdisc_sleeping);
1115:	
1116:				/* This is the counterpart of that qdisc_refcount_inc_nz() call in
1117:				 * __tcf_qdisc_find() for filter requests.
1118:				 */
1119:				if (!qdisc_refcount_dec_if_one(q)) {
1120:					NL_SET_ERR_MSG(extack,
1121:						       "Current ingress or clsact Qdisc has ongoing filter requests");
1122:					return -EBUSY;
1123:				}
1124:			}
1125:	
1126:			if (dev->flags & IFF_UP)
1127:				dev_deactivate(dev, false);
1128:	
1129:			qdisc_offload_graft_root(dev, new, old, extack);
1130:	
1131:			if (new && new->ops->attach && !ingress)
1132:				goto skip;
1133:	
1134:			if (!ingress) {
1135:				for (i = 0; i < num_q; i++) {
1136:					dev_queue = netdev_get_tx_queue(dev, i);
1137:					old = dev_graft_qdisc(dev_queue, new);
1138:	
1139:					if (new && i > 0)
1140:						qdisc_refcount_inc(new);
1141:					qdisc_put(old);
1142:				}
1143:			} else {
1144:				old = dev_graft_qdisc(dev_queue, NULL);
1145:	
1146:				/* {ingress,clsact}_destroy() @old before grafting @new to avoid
1147:				 * unprotected concurrent accesses to net_device::miniq_{in,e}gress
1148:				 * pointer(s) in mini_qdisc_pair_swap().
1149:				 */
1150:				qdisc_notify(net, skb, n, classid, old, new, extack);
1151:				qdisc_destroy(old);
1152:	
1153:				dev_graft_qdisc(dev_queue, new);
1154:			}
1155:	
1156:	skip:
1157:			if (!ingress) {
1158:				old = rtnl_dereference(dev->qdisc);
1159:				if (new && !new->ops->attach)
1160:					qdisc_refcount_inc(new);
1161:				rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
1162:	
1163:				notify_and_destroy(net, skb, n, classid, old, new, extack);
1164:	
1165:				if (new && new->ops->attach)
1166:					new->ops->attach(new);
1167:			}
1168:	
1169:			if (dev->flags & IFF_UP)
1170:				dev_activate(dev);
1171:		} else {
1172:			const struct Qdisc_class_ops *cops = parent->ops->cl_ops;
1173:			unsigned long cl;
1174:			int err;
1175:	
1176:			/* Only support running class lockless if parent is lockless */
1177:			if (new && (new->flags & TCQ_F_NOLOCK) && !(parent->flags & TCQ_F_NOLOCK))
1178:				qdisc_clear_nolock(new);
1179:	
1180:			if (!cops || !cops->graft)
1181:				return -EOPNOTSUPP;
1182:	
1183:			cl = cops->find(parent, classid);
1184:			if (!cl) {
1185:				NL_SET_ERR_MSG(extack, "Specified class not found");
1186:				return -ENOENT;
1187:			}
1188:	
1189:			if (new && new->ops == &noqueue_qdisc_ops) {
1190:				NL_SET_ERR_MSG(extack, "Cannot assign noqueue to a class");
1191:				return -EINVAL;
1192:			}
1193:	
1194:			if (new &&
1195:			    !(parent->flags & TCQ_F_MQROOT) &&
1196:			    rcu_access_pointer(new->stab)) {
1197:				NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
1198:				return -EINVAL;
1199:			}
1200:			err = cops->graft(parent, cl, new, &old, extack);
1201:			if (err)
1202:				return err;
1203:			notify_and_destroy(net, skb, n, classid, old, new, extack);
1204:		}
1205:		return 0;
1206:	}
 SourceFile:net/sched/sch_api.c]

192/4 2026/08/15 17:59 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 196858
							output: 35
							thoughts: 4559
						

Thoughts:
**My Thought Process Unraveling the Kernel Bug**

This is quite an interesting bug I've stumbled upon, and my thought process has been a journey of pinpointing a very specific race condition in the Linux kernel's traffic control (TC) subsystem. It all started when I was examining what happens when the root queueing discipline (qdisc) is deleted.

My initial understanding was that `qdisc_graft` is called with `new = NULL` when deleting the root. This function, in turn, calls `notify_and_destroy`. Now, before `notify_and_destroy` actually tears down the old qdisc, there's a crucial step: `rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);`. This line is the linchpin. It updates the device's qdisc pointer to point to a no-operation (noop) qdisc *before* the old root qdisc is destroyed.

This is where the race begins. Because `dev->qdisc` is now `&noop_qdisc`, any subsequent attempt to find the *old* root qdisc using `qdisc_match_from_root` (which relies on `dev->qdisc`) will fail. Furthermore, root qdiscs aren't added to the qdisc hash table (which is where `qdisc_lookup_rcu` searches). So, `qdisc_lookup_rcu` will return `NULL`.

The actual race window, therefore, is between the moment `dev->qdisc` is updated to `&noop_qdisc` and the complete destruction of the old root qdisc. This destruction process, specifically `qdisc_destroy(old)`, can take a considerable amount of time, especially if the qdisc, like HTB (Hierarchical Token Bucket), has many child classes. For instance, if there are 10,000 classes in HTB, `htb_destroy` will take a long time.

During this prolonged destruction, any scheduled timers associated with the old qdisc's children will fire. In my scenario, I'm using SFQ (Stochastic Fairness Queuing) with a `perturb 1` setting, which means its perturbation timer fires every second. When this timer fires, it attempts to find its parent qdisc using `qdisc_lookup_rcu`. But, as I established, `dev->qdisc` is already `&noop_qdisc`, and the old root qdisc isn't in the hash table. Hence, `qdisc_lookup_rcu` returns `NULL`. This leads to the `WARN_ON_ONCE` trigger, specifically at `qdisc_tree_reduce_backlog`, because the parent qdisc cannot be found when it's expected to be there.

This realization led me to devise a reproducer. The core idea is to create conditions that maximize the chance of this timing collision:

1.  **Set up a dummy interface:** This provides a controlled environment for our traffic control experiments.
2.  **Add an HTB root qdisc:** This gives us a classful hierarchy to work with, and its destruction is time-consuming.
3.  **Create a large number of HTB classes:** This is crucial to ensure `htb_destroy` takes a significant amount of time. I've experimented with numbers like 1000 or even 5000.
4.  **Attach SFQ qdiscs to these classes with `perturb 1`:** This ensures we have timers that will fire approximately every second.
5.  **Enqueue packets into the SFQ qdiscs:** This is a critical step. The SFQ perturbation timer (`sfq_perturbation`) only calls `sfq_rehash` (which in turn calls `qdisc_tree_reduce_backlog`) if there are packets in the queue (`q->tail` is not NULL). So, we *must* send packets to trigger the timer's logic.
6.  **Delete the root HTB qdisc at precisely the right moment:** This is the trickiest part. The deletion must occur *just before* the SFQ timers are scheduled to fire, but *after* the timers have been initialized (which happens when the SFQ qdiscs are created).

My initial reproducer attempts involved `usleep` calls, but these are inherently imprecise. To make it more reliable, I evolved to using multiple threads, each managing its own dummy interface, and slightly varying the deletion timing. This vastly increases the probability of hitting the race window. I also ensured that the `tc -b` command for batch creation and packet sending is accounted for in the timing calculations.

A finer point I considered was the behavior of the `dummy` driver itself. It quickly transmits packets, so the crucial part is that the packets are successfully *queued* briefly in the SFQ, which is sufficient to set `q->tail` and enable the timer's rehash logic.

Ultimately, the goal is to create a scenario where the destruction of the complex HTB root qdisc is still in progress when the SFQ timers fire, and at that precise moment, the kernel can no longer find the parent qdisc because the root has already been swapped out. This precisely triggers the `WARN_ON_ONCE`.


193/4 2026/08/15 17:59 tool codesearch-definition-source
0m Args:
map[ContextFile:drivers/net/dummy.c Name:dummy_xmit]

Results:
map[SourceCode:  63:	static netdev_tx_t dummy_xmit(struct sk_buff *skb, struct net_device *dev)
  64:	{
  65:		dev_lstats_add(dev, skb->len);
  66:	
  67:		skb_tx_timestamp(skb);
  68:		dev_kfree_skb(skb);
  69:		return NETDEV_TX_OK;
  70:	}
 SourceFile:drivers/net/dummy.c]

194/4 2026/08/15 17:59 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 201582
							output: 36
							thoughts: 2477
						

Thoughts:
**My Thoughts on the SFQ/HTB Race Condition**

So, I've been digging into this interesting race condition involving SFQ and HTB, specifically why this `parentid != TC_H_ROOT` warning is popping up. It seems to be a classic timing issue between the destruction of a classful root qdisc and the asynchronous nature of the SFQ perturbation timer.

Here's how I'm piecing it together:

The core of the problem is that the warning `parentid != TC_H_ROOT` originates from `qdisc_tree_reduce_backlog`. This function is essentially trying to update the backlog count of its parent qdisc. The warning fires because when it tries to look up that parent using `qdisc_lookup_rcu`, it fails to find it.

This failure to find the parent is the key. It happens because the root qdisc, let's say an HTB qdisc, is being destroyed. When the root qdisc is deleted, the network device's main qdisc pointer (`dev->qdisc`) is updated, typically to `noop_qdisc`. This happens *before* the actual destruction of the old root qdisc and its associated classes and leaf qdiscs.

Now, imagine this: the SFQ qdisc, which is a leaf qdisc under one of the HTB classes, has an asynchronous perturbation timer. If this timer happens to fire *after* `dev->qdisc` has been switched to `noop_qdisc` but *before* the SFQ itself has been fully cleaned up and its timer cancelled during the HTB destruction process, we have a problem.

When the SFQ's perturbation timer callback, `sfq_perturbation`, executes, it proceeds to call `sfq_rehash`. And `sfq_rehash` unconditionally calls `qdisc_tree_reduce_backlog`. This is where the race occurs. `qdisc_tree_reduce_backlog` then uses `qdisc_lookup_rcu` to find the parent qdisc, but since `dev->qdisc` is now `noop_qdisc`, the lookup returns `NULL`, and *bam*, the `WARN_ON_ONCE` triggers.

The reason the original syzkaller reproducer likely failed is that this race window is incredibly small. The time it takes to destroy a simple HTB qdisc with only a few classes is microseconds. For the SFQ timer to fire precisely within that tiny window is highly improbable without intentionally making things slower.

So, to reliably reproduce this, I've been thinking about how to artificially widen that race window. The most straightforward way seems to be by creating a very large number of classes under the HTB root qdisc. If we have, say, 2000 classes, the destruction of the HTB qdisc will take significantly longer as it has to iterate through and destroy all those leaf qdiscs and their associated SFQ instances.

If we combine this with SFQ qdiscs having their `perturb` timer set to a reasonably short interval (like 1 second), and ensure that packets are actually staying in the SFQ queues (which means using a very low HTB rate, perhaps `rate 8bit`, and sending multiple packets to each class to overcome any small burst allowance), we can then trigger the HTB destruction after a slight delay (just under the SFQ timer interval). This should reliably cause the SFQ perturbation timers to fire during the prolonged HTB destruction, hitting that race condition and triggering the warning.

Essentially, the strategy is:
1.  Set up an `dummy` interface with an HTB root.
2.  Add a *massive* number of classes (e.g., 2000+) to the HTB.
3.  Attach an SFQ qdisc to *each* of these classes, with `perturb 1` (1-second timer).
4.  Send multiple packets with appropriate priorities to ensure packets get enqueued in the SFQ. Use a very low HTB rate (like `8bit`) to prevent HTB from dequeuing them too quickly.
5.  Wait for a duration slightly less than the SFQ perturbation interval (e.g., 900-950ms).
6.  Delete the root HTB qdisc.

This should provide a robust way to trigger the race, as the long `htb_destroy` operation will be ongoing when the SFQ timers fire. I'm confident this approach will reliably hit the bug.


195/4 2026/08/15 18:00 tool codesearch-definition-source
0m Error:
log-in to see details

Args:
map[ContextFile:net/sched/sch_pie.c Name:calculate_probability]

Results:
map[SourceCode: SourceFile:]

196/4 2026/08/15 18:00 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 204100
							output: 717
							thoughts: 61
						

Thoughts:
**The Aha! Moment**

Ah, I see it now! It wasn't the `sfq` module itself, but rather the specific function `sfq_perturbation` that triggered the `sfq_rehash` operation, ultimately leading to the `qdisc_tree_reduce_backlog` call. The stack trace was crystal clear on this sequence. With this understanding, I have all the necessary information. I'm ready to proceed with calling `set-results`.


197/4 2026/08/15 18:00 tool set-results
0m Args:
map[Feedback:The reproduction attempt failed because the generated program did not hit the extremely narrow race window required to trigger this bug.

### Diagnosis & Root Cause
The `WARN_ON_ONCE(parentid != TC_H_ROOT)` in `qdisc_tree_reduce_backlog()` is triggered when a child qdisc attempts to update its parent's backlog, but the parent qdisc cannot be found in the qdisc tree. 

This happens due to a race condition between the destruction of a classful root qdisc (e.g., HTB) and the asynchronous perturbation timer of an SFQ child qdisc:
1. When a root qdisc is deleted, `qdisc_graft()` replaces `dev->qdisc` with `noop_qdisc` and then calls `qdisc_destroy()` on the old root.
2. `qdisc_destroy()` on the root (e.g., `htb_destroy()`) iterates over all its classes and destroys their leaf qdiscs sequentially.
3. If an SFQ leaf qdisc has a perturbation timer (`perturb_timer`), and this timer fires *after* `dev->qdisc` is updated but *before* `sfq_destroy()` is called to cancel the timer (`del_timer_sync`), the timer callback (`sfq_perturbation()`) will execute.
4. `sfq_perturbation()` calls `sfq_rehash()`, which unconditionally calls `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`.
5. `qdisc_tree_reduce_backlog()` attempts to look up the parent qdisc using `qdisc_lookup_rcu(dev, parentid)`. Since `dev->qdisc` has already been replaced with `noop_qdisc`, the lookup fails and returns `NULL`, triggering the warning.

### How to Reproduce Reliably
To trigger this reliably, you must artificially widen the race window (the execution time of the parent's `destroy` function) and align the timer expiration with this window:
1. Create a dummy interface and attach an HTB root qdisc.
2. Add a large number of classes (e.g., 2000-5000) to the HTB qdisc. This will make `htb_destroy()` take a significant amount of time to execute.
3. Attach an SFQ qdisc with `perturb 1` (1 second timer) to each class. Set the HTB class rate to a very low value (e.g., `rate 8bit`).
4. Send multiple packets to the dummy interface with `SO_PRIORITY` set to the respective class IDs. The low HTB rate ensures the packets remain queued in the SFQ qdiscs (which is required for `sfq_rehash` to proceed).
5. Sleep for slightly less than 1 second (e.g., `usleep(900000)` to `950000`) and then delete the HTB root qdisc.
6. The 1-second timers will fire while `htb_destroy()` is slowly iterating through the thousands of classes, reliably hitting the race condition and triggering the warning. ProbePassed:false TerminalError: TitleMatches:false]

Results:
map[Feedback:The reproduction attempt failed because the generated program did not hit the extremely narrow race window required to trigger this bug.

### Diagnosis & Root Cause
The `WARN_ON_ONCE(parentid != TC_H_ROOT)` in `qdisc_tree_reduce_backlog()` is triggered when a child qdisc attempts to update its parent's backlog, but the parent qdisc cannot be found in the qdisc tree. 

This happens due to a race condition between the destruction of a classful root qdisc (e.g., HTB) and the asynchronous perturbation timer of an SFQ child qdisc:
1. When a root qdisc is deleted, `qdisc_graft()` replaces `dev->qdisc` with `noop_qdisc` and then calls `qdisc_destroy()` on the old root.
2. `qdisc_destroy()` on the root (e.g., `htb_destroy()`) iterates over all its classes and destroys their leaf qdiscs sequentially.
3. If an SFQ leaf qdisc has a perturbation timer (`perturb_timer`), and this timer fires *after* `dev->qdisc` is updated but *before* `sfq_destroy()` is called to cancel the timer (`del_timer_sync`), the timer callback (`sfq_perturbation()`) will execute.
4. `sfq_perturbation()` calls `sfq_rehash()`, which unconditionally calls `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`.
5. `qdisc_tree_reduce_backlog()` attempts to look up the parent qdisc using `qdisc_lookup_rcu(dev, parentid)`. Since `dev->qdisc` has already been replaced with `noop_qdisc`, the lookup fails and returns `NULL`, triggering the warning.

### How to Reproduce Reliably
To trigger this reliably, you must artificially widen the race window (the execution time of the parent's `destroy` function) and align the timer expiration with this window:
1. Create a dummy interface and attach an HTB root qdisc.
2. Add a large number of classes (e.g., 2000-5000) to the HTB qdisc. This will make `htb_destroy()` take a significant amount of time to execute.
3. Attach an SFQ qdisc with `perturb 1` (1 second timer) to each class. Set the HTB class rate to a very low value (e.g., `rate 8bit`).
4. Send multiple packets to the dummy interface with `SO_PRIORITY` set to the respective class IDs. The low HTB rate ensures the packets remain queued in the SFQ qdiscs (which is required for `sfq_rehash` to proceed).
5. Sleep for slightly less than 1 second (e.g., `usleep(900000)` to `950000`) and then delete the HTB root qdisc.
6. The 1-second timers will fire while `htb_destroy()` is slowly iterating through the thousands of classes, reliably hitting the race condition and triggering the warning. ProbePassed:false TerminalError: TitleMatches:false]

198/3 2026/08/15 18:00 action loop-controller
0m Results:
map[CapabilitiesVerified:true ContinueSignal:continue EquivalenceAnalysis: OracleFeedback:The reproduction attempt failed because the generated program did not hit the extremely narrow race window required to trigger this bug.

### Diagnosis & Root Cause
The `WARN_ON_ONCE(parentid != TC_H_ROOT)` in `qdisc_tree_reduce_backlog()` is triggered when a child qdisc attempts to update its parent's backlog, but the parent qdisc cannot be found in the qdisc tree. 

This happens due to a race condition between the destruction of a classful root qdisc (e.g., HTB) and the asynchronous perturbation timer of an SFQ child qdisc:
1. When a root qdisc is deleted, `qdisc_graft()` replaces `dev->qdisc` with `noop_qdisc` and then calls `qdisc_destroy()` on the old root.
2. `qdisc_destroy()` on the root (e.g., `htb_destroy()`) iterates over all its classes and destroys their leaf qdiscs sequentially.
3. If an SFQ leaf qdisc has a perturbation timer (`perturb_timer`), and this timer fires *after* `dev->qdisc` is updated but *before* `sfq_destroy()` is called to cancel the timer (`del_timer_sync`), the timer callback (`sfq_perturbation()`) will execute.
4. `sfq_perturbation()` calls `sfq_rehash()`, which unconditionally calls `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`.
5. `qdisc_tree_reduce_backlog()` attempts to look up the parent qdisc using `qdisc_lookup_rcu(dev, parentid)`. Since `dev->qdisc` has already been replaced with `noop_qdisc`, the lookup fails and returns `NULL`, triggering the warning.

### How to Reproduce Reliably
To trigger this reliably, you must artificially widen the race window (the execution time of the parent's `destroy` function) and align the timer expiration with this window:
1. Create a dummy interface and attach an HTB root qdisc.
2. Add a large number of classes (e.g., 2000-5000) to the HTB qdisc. This will make `htb_destroy()` take a significant amount of time to execute.
3. Attach an SFQ qdisc with `perturb 1` (1 second timer) to each class. Set the HTB class rate to a very low value (e.g., `rate 8bit`).
4. Send multiple packets to the dummy interface with `SO_PRIORITY` set to the respective class IDs. The low HTB rate ensures the packets remain queued in the SFQ qdiscs (which is required for `sfq_rehash` to proceed).
5. Sleep for slightly less than 1 second (e.g., `usleep(900000)` to `950000`) and then delete the HTB root qdisc.
6. The 1-second timers will fire while `htb_destroy()` is slowly iterating through the thousands of classes, reliably hitting the race condition and triggering the warning. ReproC: Reproduced:false ReproducedBugTitle: ReproducedCrashReport:]

199/2 2026/08/15 18:00 iteration 2
18m
200/3 2026/08/15 18:00 action If
3m Args:
map[OracleFeedback:The reproduction attempt failed because the generated program did not hit the extremely narrow race window required to trigger this bug.

### Diagnosis & Root Cause
The `WARN_ON_ONCE(parentid != TC_H_ROOT)` in `qdisc_tree_reduce_backlog()` is triggered when a child qdisc attempts to update its parent's backlog, but the parent qdisc cannot be found in the qdisc tree. 

This happens due to a race condition between the destruction of a classful root qdisc (e.g., HTB) and the asynchronous perturbation timer of an SFQ child qdisc:
1. When a root qdisc is deleted, `qdisc_graft()` replaces `dev->qdisc` with `noop_qdisc` and then calls `qdisc_destroy()` on the old root.
2. `qdisc_destroy()` on the root (e.g., `htb_destroy()`) iterates over all its classes and destroys their leaf qdiscs sequentially.
3. If an SFQ leaf qdisc has a perturbation timer (`perturb_timer`), and this timer fires *after* `dev->qdisc` is updated but *before* `sfq_destroy()` is called to cancel the timer (`del_timer_sync`), the timer callback (`sfq_perturbation()`) will execute.
4. `sfq_perturbation()` calls `sfq_rehash()`, which unconditionally calls `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`.
5. `qdisc_tree_reduce_backlog()` attempts to look up the parent qdisc using `qdisc_lookup_rcu(dev, parentid)`. Since `dev->qdisc` has already been replaced with `noop_qdisc`, the lookup fails and returns `NULL`, triggering the warning.

### How to Reproduce Reliably
To trigger this reliably, you must artificially widen the race window (the execution time of the parent's `destroy` function) and align the timer expiration with this window:
1. Create a dummy interface and attach an HTB root qdisc.
2. Add a large number of classes (e.g., 2000-5000) to the HTB qdisc. This will make `htb_destroy()` take a significant amount of time to execute.
3. Attach an SFQ qdisc with `perturb 1` (1 second timer) to each class. Set the HTB class rate to a very low value (e.g., `rate 8bit`).
4. Send multiple packets to the dummy interface with `SO_PRIORITY` set to the respective class IDs. The low HTB rate ensures the packets remain queued in the SFQ qdiscs (which is required for `sfq_rehash` to proceed).
5. Sleep for slightly less than 1 second (e.g., `usleep(900000)` to `950000`) and then delete the HTB root qdisc.
6. The 1-second timers will fire while `htb_destroy()` is slowly iterating through the thousands of classes, reliably hitting the race condition and triggering the warning.]

201/4 2026/08/15 18:00 agent strategy-refiner
3m Model:
best-expensive

Instruction:
You are an expert in Linux kernel debugging.
Refine the reproduction strategy based on feedback from previous attempts.
Analyze the technical diagnosis provided in the oracle feedback and translate it into concrete,
step-by-step instructions for the repro-generator on how to modify the code structure, alignments,
offsets, or parameters of the candidate program.

=== TOOL SELECTION GUIDELINES ===
- Prefer codesearch-definition-source and codesearch-struct-layout first for symbol lookups.
- Fall back to read-file or grepper for macros, headers, or if symbol lookup fails.

=== CRITICAL PROHIBITIONS ===
- Do NOT repeat searches for the same symbols or files. Use information you have already gathered.
- Do NOT write long explanations. Keep your reasoning short and focused on actionable changes.
- Do NOT assume a bug is fixed based on git commit history.
- If you are stuck, try a different approach or proceed to generate a candidate reproducer.
Prefer calling several tools at the same time to save round-trips.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Current Strategy: An analysis of the bug and the previous strategy confirms that the race condition exists between the destruction of the qdisc tree (specifically `htb_destroy` removing the root qdisc from the hash) and the `sfq_perturbation` timer firing. 

To reliably trigger this race, we need to:
1. Widen the race window: We can achieve this by adding a large number of classes (e.g., 500) to the HTB root qdisc. When the root is deleted, `htb_destroy` will take longer to clean up all these classes, giving the timer a larger window to fire while the tree is in a partially destroyed state.
2. Use `tc -batch` to quickly set up the large qdisc hierarchy.
3. Enqueue packets so that the SFQ queue is not empty (otherwise `sfq_rehash` returns early).
4. Sleep for just under 1 second (with some random jitter) so that the `tc qdisc del` command overlaps exactly with the 1-second `sfq_perturbation` timer.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct ifreq ifr;
    strcpy(ifr.ifr_name, ifname);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifr.ifr_ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with many classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 100\n", ifname);
        for (int c = 1; c < 100; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%d htb rate 100mbit\n", ifname, c);
        }
        // The target class where packets will be queued (very low rate to ensure they stay in queue)
        fprintf(bf, "class add dev %s parent 1: classid 1:100 htb rate 8bit\n", ifname);
        for (int c = 101; c <= 500; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%d htb rate 100mbit\n", ifname, c);
        }
        // Add SFQ with a 1-second perturbation timer
        fprintf(bf, "qdisc add dev %s parent 1:100 handle 2: sfq perturb 1\n", ifname);
        fclose(bf);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to ensure the SFQ queue is not empty
        char buf[1000] = {0};
        for (int p = 0; p < 5; p++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // 3. Sleep to overlap the root deletion with the 1-second timer firing.
        // The timer fires at ~1000ms. We sleep for 900ms-1000ms to start deletion just before it fires.
        usleep(900000 + (rand_r(&seed) % 100000));
        
        // 4. Delete the root qdisc (triggers the race)
        sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```
Feedback: The reproduction attempt failed because the generated program did not hit the extremely narrow race window required to trigger this bug.

### Diagnosis & Root Cause
The `WARN_ON_ONCE(parentid != TC_H_ROOT)` in `qdisc_tree_reduce_backlog()` is triggered when a child qdisc attempts to update its parent's backlog, but the parent qdisc cannot be found in the qdisc tree. 

This happens due to a race condition between the destruction of a classful root qdisc (e.g., HTB) and the asynchronous perturbation timer of an SFQ child qdisc:
1. When a root qdisc is deleted, `qdisc_graft()` replaces `dev->qdisc` with `noop_qdisc` and then calls `qdisc_destroy()` on the old root.
2. `qdisc_destroy()` on the root (e.g., `htb_destroy()`) iterates over all its classes and destroys their leaf qdiscs sequentially.
3. If an SFQ leaf qdisc has a perturbation timer (`perturb_timer`), and this timer fires *after* `dev->qdisc` is updated but *before* `sfq_destroy()` is called to cancel the timer (`del_timer_sync`), the timer callback (`sfq_perturbation()`) will execute.
4. `sfq_perturbation()` calls `sfq_rehash()`, which unconditionally calls `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`.
5. `qdisc_tree_reduce_backlog()` attempts to look up the parent qdisc using `qdisc_lookup_rcu(dev, parentid)`. Since `dev->qdisc` has already been replaced with `noop_qdisc`, the lookup fails and returns `NULL`, triggering the warning.

### How to Reproduce Reliably
To trigger this reliably, you must artificially widen the race window (the execution time of the parent's `destroy` function) and align the timer expiration with this window:
1. Create a dummy interface and attach an HTB root qdisc.
2. Add a large number of classes (e.g., 2000-5000) to the HTB qdisc. This will make `htb_destroy()` take a significant amount of time to execute.
3. Attach an SFQ qdisc with `perturb 1` (1 second timer) to each class. Set the HTB class rate to a very low value (e.g., `rate 8bit`).
4. Send multiple packets to the dummy interface with `SO_PRIORITY` set to the respective class IDs. The low HTB rate ensures the packets remain queued in the SFQ qdiscs (which is required for `sfq_rehash` to proceed).
5. Sleep for slightly less than 1 second (e.g., `usleep(900000)` to `950000`) and then delete the HTB root qdisc.
6. The 1-second timers will fire while `htb_destroy()` is slowly iterating through the thousands of classes, reliably hitting the race condition and triggering the warning.

Reply:
An analysis of the feedback and the kernel source code confirms that the race condition occurs between the destruction of the HTB root qdisc and the asynchronous perturbation timer of an SFQ child qdisc. 

To trigger this reliably, we must ensure that:
1. **The race window is wide enough:** We can achieve this by adding a large number of classes (e.g., 1000) to the HTB root qdisc. When the root is deleted, `htb_destroy()` will take a significant amount of time to iterate through and destroy all these classes.
2. **The SFQ queues are not empty:** The `sfq_perturbation()` timer callback only calls `sfq_rehash()` (which triggers the bug) if there are packets in the queue (`q->tail != NULL`). We must enqueue packets to each SFQ qdisc and set the HTB class rate to a very low value (e.g., `8bit`) so the packets remain queued.
3. **The timing is perfectly aligned:** The SFQ timers are set to fire 1 second after they are added. Since adding 1000 classes takes some time, the timers will fire over a window of time. We can measure the time it takes to set up the qdiscs and calculate the exact moment to delete the root qdisc so that `htb_destroy()` executes exactly in the middle of this window, guaranteeing a massive overlap.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 1000

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
    system(cmd);
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 1000 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            // Rate is extremely low (8bit) to ensure packets stay in the queue
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to each class to ensure the SFQ queues are not empty
        char buf[1000] = {0};
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 3; p++) {
                sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire over a window from ~1.0s to ~1.0s + elapsed_us.
        // We calculate the sleep time to delete the root qdisc exactly in the middle of this window.
        long sleep_us = 1000000 - (elapsed_us / 2) - 10000 + (rand_r(&seed) % 50000) - 25000;
        
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        // 4. Delete the root qdisc (triggers the race while timers are firing)
        sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```

202/5 2026/08/15 18:00 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 6090
							output: 38
							thoughts: 1747
						

Thoughts:
**The Race Condition in `qdisc_tree_reduce_backlog`**

My objective is to trigger a race condition within the `qdisc_tree_reduce_backlog` function when the `parentid` is not `TC_H_ROOT`. My analysis points to a conflict between the `htb_destroy` and `sfq_perturbation` functions as the source of this race.

To achieve this, I've outlined a multi-step approach:

1.  **Setting the Stage:** I need to create a synthetic environment. This involves setting up a dummy network interface and then attaching a root HTB (Hierarchical Token Bucket) qdisc to it.

2.  **Amplifying the Race Window:** To increase the chances of the race condition occurring, I plan to populate the HTB qdisc with a substantial number of classes. The feedback suggests a range of 2000 to 5000 classes would be effective in widening the window of opportunity for the race.

3.  **Introducing SFQ and Constraints:** For each of these HTB classes, I will attach an SFQ (Stochastic Fairness Queueing) qdisc. Crucially, I'll configure the SFQ qdisc with `perturb 1` to ensure its perturbation timer is active and set to a one-second interval. To further constrain the HTB's bandwidth and potentially slow down its destruction process, I'll set the HTB class rate to a very low value, like `rate 8bit`.

4.  **Simulating Traffic:** To ensure the SFQ queues are active and their timers are relevant, I'll send multiple packets to the dummy interface. The `SO_PRIORITY` socket option will be used to direct these packets to their respective HTB classes, thereby populating the SFQ queues.

5.  **The Critical Timing:** The core of the race lies in the timing of the HTB root qdisc deletion. I intend to wait for a period slightly less than one second after setting up the environment – specifically, somewhere between 900,000 and 950,000 microseconds using `usleep`. This precise timing is designed to coincide with the firing of the one-second SFQ timers. Immediately after this carefully timed sleep, I will initiate the deletion of the HTB root qdisc.

6.  **Exploiting the Timer Firing:** The goal is that while `htb_destroy()` is methodically iterating through the thousands of HTB classes (a process that I expect to be somewhat slow due to the sheer number of classes), the one-second timers associated with the SFQ qdiscs will fire. This simultaneous execution of `htb_destroy()` and the SFQ timers, with their respective interactions with `qdisc_tree_reduce_backlog`, is what I believe will trigger the race condition.

My plan is to implement this scenario in a C program. I'm considering using `tc -batch` for quick qdisc setup, but I'm also aware that setting up a large number of classes and SFQ qdiscs might take a significant amount of time. If `tc -batch` itself takes too long, it could interfere with the precise timing of the SFQ timers. I need to be mindful of the execution time of `tc -batch` and potentially adjust the sleep duration accordingly or consider alternative, faster setup methods if necessary, like direct netlink socket usage, although `tc -batch` is simpler. I've even started to incorporate measuring the `tc -batch` execution time and dynamically adjusting the sleep. However, I need to verify exactly when the SFQ timers are initiated and how they behave.


203/5 2026/08/15 18:00 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_init]

Results:
map[SourceCode: 777:	static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
 778:			    struct netlink_ext_ack *extack)
 779:	{
 780:		struct sfq_sched_data *q = qdisc_priv(sch);
 781:		int i;
 782:		int err;
 783:	
 784:		q->sch = sch;
 785:		timer_setup(&q->perturb_timer, sfq_perturbation, TIMER_DEFERRABLE);
 786:	
 787:		err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
 788:		if (err)
 789:			return err;
 790:	
 791:		for (i = 0; i < SFQ_MAX_DEPTH + 1; i++) {
 792:			q->dep[i].next = i + SFQ_MAX_FLOWS;
 793:			q->dep[i].prev = i + SFQ_MAX_FLOWS;
 794:		}
 795:	
 796:		q->limit = SFQ_MAX_DEPTH;
 797:		q->maxdepth = SFQ_MAX_DEPTH;
 798:		q->cur_depth = 0;
 799:		q->tail = NULL;
 800:		q->divisor = SFQ_DEFAULT_HASH_DIVISOR;
 801:		q->maxflows = SFQ_DEFAULT_FLOWS;
 802:		q->quantum = psched_mtu(qdisc_dev(sch));
 803:		q->perturb_period = 0;
 804:		get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 805:	
 806:		if (opt) {
 807:			int err = sfq_change(sch, opt, extack);
 808:			if (err)
 809:				return err;
 810:		}
 811:	
 812:		q->ht = sfq_alloc(sizeof(q->ht[0]) * q->divisor);
 813:		q->slots = sfq_alloc(sizeof(q->slots[0]) * q->maxflows);
 814:		if (!q->ht || !q->slots) {
 815:			/* Note: sfq_destroy() will be called by our caller */
 816:			return -ENOMEM;
 817:		}
 818:	
 819:		for (i = 0; i < q->divisor; i++)
 820:			q->ht[i] = SFQ_EMPTY_SLOT;
 821:	
 822:		for (i = 0; i < q->maxflows; i++) {
 823:			slot_queue_init(&q->slots[i]);
 824:			sfq_link(q, i);
 825:		}
 826:		if (q->limit >= 1)
 827:			sch->flags |= TCQ_F_CAN_BYPASS;
 828:		else
 829:			sch->flags &= ~TCQ_F_CAN_BYPASS;
 830:		return 0;
 831:	}
 SourceFile:net/sched/sch_sfq.c]

204/5 2026/08/15 18:00 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 8778
							output: 38
							thoughts: 39
						

Thoughts:
**My Thought Process on the sfq_init and sfq_change Logic**

Okay, so I'm looking at the `sfq_init` function, and I see that a timer is being set up there. That's pretty standard for initialization. However, my attention is immediately drawn to the conditional execution: if an `opt` parameter is provided, then `sfq_change` gets called. This immediately flags a potential point of interest.

Why would `sfq_change` be invoked immediately after initialization *only* when `opt` is present? This suggests that `opt` is not just a simple flag to enable or disable something, but rather it's carrying some specific configuration or instruction that needs to be applied right away, even before the timer potentially starts its first tick.

My next step, therefore, is to dive into `sfq_change`. I need to understand *what* it does when it's called in this specific context. Is it setting the initial timer interval? Is it modifying some other parameters related to the timer's behavior? Is it performing a one-time setup based on the `opt` value? Understanding `sfq_change` is key to fully grasping the initialization flow and how the timer is being configured. I'm particularly interested in the data or meaning contained within `opt` and how it translates into actions within `sfq_change`.


205/5 2026/08/15 18:00 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

206/5 2026/08/15 18:00 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 10817
							output: 36
							thoughts: 325
						

Thoughts:
**My Thought Process Regarding SFQ Perturbation Timers and Race Conditions**

Okay, so I've been digging into this `sfq_change` function, specifically looking at where that `mod_timer(&q->perturb_timer, jiffies + q->perturb_period);` call happens. My initial understanding is that this timer gets kicked off whenever `tc -batch` executes an `qdisc add` command for each individual SFQ instance.

Now, let's consider a scenario with a significant number of classes, say 2000. `tc -batch`, as I understand it, will process these additions sequentially. This means the first SFQ timer will be scheduled to fire about a second after it's added, and then the last one will fire a second after *its* addition.

This is where it gets interesting. If the `tc -batch` operation itself takes, let's say, 500 milliseconds to complete, then the timers won't all fire at once. Instead, they'll fire over a 500ms window, but crucially, this window *starts* a full second after the very first SFQ was added. From a race condition perspective, this is actually quite advantageous. Having a 500ms window where timers are firing makes it a much more achievable goal to actually *hit* that race condition. The strategy then becomes trying to initiate the deletion of the root qdisc either just before that first timer fires, or perhaps even while this batch of timers is actively firing.

However, I need to pause and reconsider. What if `tc -batch` takes longer than one second? This is a critical point. If the `tc -batch` process extends beyond the initial one-second timer period, the first timer will actually fire *before* `tc -batch` has even finished its entire operation. Now, my understanding is that `tc -batch` holds the RTNL lock throughout its execution. This is important because while timers might fire, they don't necessarily *require* the RTNL lock to execute their core logic.

But then, another thought occurs. The `sfq_perturbation` function itself – does it acquire any locks? Specifically, I see it takes `qdisc_lock(q->sch)`. This leads me to a new line of inquiry: does `htb_destroy`, which is likely involved when we're talking about deleting the root qdisc, also acquire the `qdisc_lock`? I need to investigate `htb_destroy` to understand its locking behavior in relation to `sfq_perturbation`'s locking. This is the next piece of the puzzle I need to confirm.


207/5 2026/08/15 18:00 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy]

Results:
map[SourceCode:1618:	static void htb_destroy(struct Qdisc *sch)
1619:	{
1620:		struct net_device *dev = qdisc_dev(sch);
1621:		struct tc_htb_qopt_offload offload_opt;
1622:		struct htb_sched *q = qdisc_priv(sch);
1623:		struct hlist_node *next;
1624:		bool nonempty, changed;
1625:		struct htb_class *cl;
1626:		unsigned int i;
1627:	
1628:		cancel_work_sync(&q->work);
1629:		qdisc_watchdog_cancel(&q->watchdog);
1630:		/* This line used to be after htb_destroy_class call below
1631:		 * and surprisingly it worked in 2.4. But it must precede it
1632:		 * because filter need its target class alive to be able to call
1633:		 * unbind_filter on it (without Oops).
1634:		 */
1635:		tcf_block_put(q->block);
1636:	
1637:		for (i = 0; i < q->clhash.hashsize; i++) {
1638:			hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
1639:				tcf_block_put(cl->block);
1640:				cl->block = NULL;
1641:			}
1642:		}
1643:	
1644:		do {
1645:			nonempty = false;
1646:			changed = false;
1647:			for (i = 0; i < q->clhash.hashsize; i++) {
1648:				hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
1649:							  common.hnode) {
1650:					bool last_child;
1651:	
1652:					if (!q->offload) {
1653:						htb_destroy_class(sch, cl);
1654:						continue;
1655:					}
1656:	
1657:					nonempty = true;
1658:	
1659:					if (cl->level)
1660:						continue;
1661:	
1662:					changed = true;
1663:	
1664:					last_child = htb_parent_last_child(cl);
1665:					htb_destroy_class_offload(sch, cl, last_child,
1666:								  true, NULL);
1667:					qdisc_class_hash_remove(&q->clhash,
1668:								&cl->common);
1669:					if (cl->parent)
1670:						cl->parent->children--;
1671:					if (last_child)
1672:						htb_parent_to_leaf(sch, cl, NULL);
1673:					htb_destroy_class(sch, cl);
1674:				}
1675:			}
1676:		} while (changed);
1677:		WARN_ON(nonempty);
1678:	
1679:		qdisc_class_hash_destroy(&q->clhash);
1680:		__qdisc_reset_queue(&q->direct_queue);
1681:	
1682:		if (q->offload) {
1683:			offload_opt = (struct tc_htb_qopt_offload) {
1684:				.command = TC_HTB_DESTROY,
1685:			};
1686:			htb_offload(dev, &offload_opt);
1687:		}
1688:	
1689:		if (!q->direct_qdiscs)
1690:			return;
1691:		for (i = 0; i < q->num_direct_qdiscs && q->direct_qdiscs[i]; i++)
1692:			qdisc_put(q->direct_qdiscs[i]);
1693:		kfree(q->direct_qdiscs);
1694:	}
 SourceFile:net/sched/sch_htb.c]

208/5 2026/08/15 18:00 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 12335
							output: 38
							thoughts: 282
						

Thoughts:
**My Thought Process Regarding the `htb_destroy` Race Condition**

Here's how my mind pieced together the sequence of events leading to the identified race condition:

My initial focus was on the call chain initiated by `htb_destroy`. I traced its execution flow: `htb_destroy` -> `htb_destroy_class` -> `qdisc_put(cl->leaf)`. This `qdisc_put` function is crucial because it manages the reference counting for a queue discipline (`qdisc`).

I recognized that `qdisc_put` would call `qdisc_destroy` *only if* the reference count dropped to zero. This is a standard mechanism for freeing resources when they are no longer in use.

Then, the critical path continued: `qdisc_destroy` calls `ops->destroy`. In the context of SFQ (Stochastic Fairness Queuing), `ops->destroy` points to `sfq_destroy`. This is where the timer functionality comes into play, as `sfq_destroy` makes a call to `timer_delete_sync(&q->perturb_timer)`.

At this point, a potential issue sparked my attention: if the `perturb_timer` fires *before* `sfq_destroy` is actually executed, its associated handler will run. This is a classic timing-dependent vulnerability.

Now, I needed to understand *when* `htb_destroy` itself is called and in what context. I remembered or deduced that `htb_destroy` is invoked from `qdisc_destroy` when it's dealing with the root queue discipline.

The key insight came when I considered the `qdisc_graft` function. This function is responsible for replacing the existing queue discipline associated with a network device (`dev->qdisc`). Crucially, before `qdisc_destroy` is called for the old root qdisc, `qdisc_graft` performs the replacement: `dev->qdisc = noop_qdisc`.

This substitution creates the window of vulnerability. The race occurs *between* the moment `dev->qdisc` is set to `noop_qdisc` within `qdisc_graft` and the point where `timer_delete_sync` is called inside `sfq_destroy`.

Furthermore, I realized that the entire execution of `htb_destroy` up to the destruction of a specific class falls within this race window. The scenario becomes more pronounced when dealing with a large number of classes, as I observed with the hypothetical 2000 classes. In such cases, `htb_destroy` would take a significant amount of time to iterate through and destroy all these classes. This extended execution time amplifies the probability of the timer firing within the critical window.

To solidify my understanding, I made a mental note or commitment to re-examine `qdisc_graft` to ensure I had a complete grasp of how `dev->qdisc` is being replaced, as this is the foundational step for establishing the race.


209/5 2026/08/15 18:00 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_graft]

Results:
map[SourceCode:1091:	static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
1092:			       struct sk_buff *skb, struct nlmsghdr *n, u32 classid,
1093:			       struct Qdisc *new, struct Qdisc *old,
1094:			       struct netlink_ext_ack *extack)
1095:	{
1096:		struct Qdisc *q = old;
1097:		struct net *net = dev_net(dev);
1098:	
1099:		if (parent == NULL) {
1100:			unsigned int i, num_q, ingress;
1101:			struct netdev_queue *dev_queue;
1102:	
1103:			ingress = 0;
1104:			num_q = dev->num_tx_queues;
1105:			if ((q && q->flags & TCQ_F_INGRESS) ||
1106:			    (new && new->flags & TCQ_F_INGRESS)) {
1107:				ingress = 1;
1108:				dev_queue = dev_ingress_queue(dev);
1109:				if (!dev_queue) {
1110:					NL_SET_ERR_MSG(extack, "Device does not have an ingress queue");
1111:					return -ENOENT;
1112:				}
1113:	
1114:				q = rtnl_dereference(dev_queue->qdisc_sleeping);
1115:	
1116:				/* This is the counterpart of that qdisc_refcount_inc_nz() call in
1117:				 * __tcf_qdisc_find() for filter requests.
1118:				 */
1119:				if (!qdisc_refcount_dec_if_one(q)) {
1120:					NL_SET_ERR_MSG(extack,
1121:						       "Current ingress or clsact Qdisc has ongoing filter requests");
1122:					return -EBUSY;
1123:				}
1124:			}
1125:	
1126:			if (dev->flags & IFF_UP)
1127:				dev_deactivate(dev, false);
1128:	
1129:			qdisc_offload_graft_root(dev, new, old, extack);
1130:	
1131:			if (new && new->ops->attach && !ingress)
1132:				goto skip;
1133:	
1134:			if (!ingress) {
1135:				for (i = 0; i < num_q; i++) {
1136:					dev_queue = netdev_get_tx_queue(dev, i);
1137:					old = dev_graft_qdisc(dev_queue, new);
1138:	
1139:					if (new && i > 0)
1140:						qdisc_refcount_inc(new);
1141:					qdisc_put(old);
1142:				}
1143:			} else {
1144:				old = dev_graft_qdisc(dev_queue, NULL);
1145:	
1146:				/* {ingress,clsact}_destroy() @old before grafting @new to avoid
1147:				 * unprotected concurrent accesses to net_device::miniq_{in,e}gress
1148:				 * pointer(s) in mini_qdisc_pair_swap().
1149:				 */
1150:				qdisc_notify(net, skb, n, classid, old, new, extack);
1151:				qdisc_destroy(old);
1152:	
1153:				dev_graft_qdisc(dev_queue, new);
1154:			}
1155:	
1156:	skip:
1157:			if (!ingress) {
1158:				old = rtnl_dereference(dev->qdisc);
1159:				if (new && !new->ops->attach)
1160:					qdisc_refcount_inc(new);
1161:				rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
1162:	
1163:				notify_and_destroy(net, skb, n, classid, old, new, extack);
1164:	
1165:				if (new && new->ops->attach)
1166:					new->ops->attach(new);
1167:			}
1168:	
1169:			if (dev->flags & IFF_UP)
1170:				dev_activate(dev);
1171:		} else {
1172:			const struct Qdisc_class_ops *cops = parent->ops->cl_ops;
1173:			unsigned long cl;
1174:			int err;
1175:	
1176:			/* Only support running class lockless if parent is lockless */
1177:			if (new && (new->flags & TCQ_F_NOLOCK) && !(parent->flags & TCQ_F_NOLOCK))
1178:				qdisc_clear_nolock(new);
1179:	
1180:			if (!cops || !cops->graft)
1181:				return -EOPNOTSUPP;
1182:	
1183:			cl = cops->find(parent, classid);
1184:			if (!cl) {
1185:				NL_SET_ERR_MSG(extack, "Specified class not found");
1186:				return -ENOENT;
1187:			}
1188:	
1189:			if (new && new->ops == &noqueue_qdisc_ops) {
1190:				NL_SET_ERR_MSG(extack, "Cannot assign noqueue to a class");
1191:				return -EINVAL;
1192:			}
1193:	
1194:			if (new &&
1195:			    !(parent->flags & TCQ_F_MQROOT) &&
1196:			    rcu_access_pointer(new->stab)) {
1197:				NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
1198:				return -EINVAL;
1199:			}
1200:			err = cops->graft(parent, cl, new, &old, extack);
1201:			if (err)
1202:				return err;
1203:			notify_and_destroy(net, skb, n, classid, old, new, extack);
1204:		}
1205:		return 0;
1206:	}
 SourceFile:net/sched/sch_api.c]

210/5 2026/08/15 18:00 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 14472
							output: 39
							thoughts: 2149
						

Thoughts:
**The Race Condition in `qdisc_graft`**

My current understanding is that I've uncovered a race condition within the `qdisc_graft` function, specifically when modifying the root qdisc of a device. The core of the problem lies in the sequence of operations: the device's qdisc is first replaced with a no-op qdisc, and then the old qdisc is destroyed. This sequence creates a window where a timer associated with an SFQ (Stochastic Fairness Queuing) qdisc can fire between these two critical steps.

Here's how I see the race unfold:

1.  **Root Qdisc Replacement:** The `qdisc_graft` function, when handling the root qdisc and finding that the new qdisc is `NULL` (which is the case when deleting the root), first updates `dev->qdisc` to point to `&noop_qdisc`. This effectively detaches the old qdisc from the device.
2.  **Old Qdisc Destruction:** Immediately following this replacement, `notify_and_destroy` is called, which in turn invokes `qdisc_destroy` on the `old` qdisc. This `qdisc_destroy` call triggers a cascade of destruction operations, including `htb_destroy` (if HTB is the parent), `htb_destroy_class`, and eventually, crucially, `qdisc_put` and `qdisc_destroy` for any child SFQ qdiscs. The SFQ destruction process includes `sfq_destroy` and `timer_delete_sync(&q->perturb_timer)`.

The race occurs if the `sfq_perturbation` timer fires *after* `dev->qdisc` has been updated to `&noop_qdisc` but *before* `qdisc_destroy(old)` has fully completed. When the `sfq_perturbation` timer fires, it calls `sfq_rehash`.

My analysis of `sfq_rehash` reveals that it attempts to call `qdisc_lookup_rcu(dev, parentid)`. Because `dev->qdisc` is now pointing to `&noop_qdisc`, this lookup will fail to find the original parent qdisc (the HTB qdisc, which is in the process of being destroyed). This failure to find the parent triggers a warning.

To reliably trigger this race, I need to orchestrate the timing such that the SFQ timer fires during the `htb_destroy` phase. I've been considering how to achieve this:

*   **Timing the Destruction:** `htb_destroy` can take a significant amount of time if there are many classes. I've experimented with using a large number of classes (like 5000) in `tc -batch` to increase the duration of `htb_destroy`, thus widening the window for the timer to fire.
*   **Scripting the Attack:** Initially, I thought of using `tc -batch` to set up the qdiscs and then a simple `system("tc qdisc del ...")` command to trigger the deletion. However, the overhead of `fork`, `exec`, and parsing involved in `system()` calls makes precise timing difficult. I also realized that if `tc -batch` takes longer than the SFQ perturb period (1 second), the timers would have already fired.
*   **Improving Precision with Netlink:** To gain finer control over the deletion timing, I've started exploring the use of direct Netlink socket operations in C. A Netlink call to delete the root qdisc is practically instantaneous, allowing me to synchronize it much more precisely with the SFQ timer's firing window. I've outlined a potential `delete_root_qdisc` Netlink function for this purpose.
*   **Ensuring SFQ Activity:** A crucial detail I've noted is that `sfq_rehash` only calls `qdisc_tree_reduce_backlog` if packets were actually dropped during the rehashing process. This means I need to ensure that the SFQ queues are not empty when `sfq_rehash` is invoked, so that packets are enqueued and potentially dropped, leading to the `qdisc_tree_reduce_backlog` call. I'll need to carefully manage packet enqueueing to guarantee this condition.

My current approach is to refine the C code to use Netlink for the qdisc deletion, ensuring that the deletion happens very close to the 1-second mark after the initial SFQ qdiscs are established. This should maximize the overlap between the `htb_destroy` process and the firing of the SFQ perturbation timers.


211/5 2026/08/15 18:01 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

212/5 2026/08/15 18:01 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 17859
							output: 42
							thoughts: 79
						

Thoughts:
**My Thought Process Regarding `qdisc_tree_reduce_backlog`**

I've just observed that `qdisc_tree_reduce_backlog(sch, dropped, drop_len);` is being invoked without any preceding conditional checks, which immediately piqued my interest. My immediate thought was to question its behavior when the `dropped` parameter evaluates to zero. Specifically, I'm wondering if, in such a scenario, the `qdisc_tree_reduce_backlog` function actually performs any meaningful operations or if it effectively becomes a no-op. To gain clarity on this, I intend to delve into the implementation of `qdisc_tree_reduce_backlog` within the `net/sched/sch_api.c` file.


213/5 2026/08/15 18:01 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

214/5 2026/08/15 18:01 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 18582
							output: 40
							thoughts: 351
						

Thoughts:
**The Unexpected Revelation about `qdisc_tree_reduce_backlog` and Packet Enqueueing**

It appears I've stumbled upon a rather significant simplification in how certain network queueing operations behave. My initial thinking was that `qdisc_tree_reduce_backlog` was designed to operate primarily when there were packets to process, hence the name "reduce_backlog." However, a closer inspection of its implementation revealed something quite surprising: the main loop within `qdisc_tree_reduce_backlog` executes unconditionally, regardless of whether `n` (the number of packets) and `len` (the total length of packets) are zero.

This leads to a critical insight. Even if there are no packets to enqueue or process, the function will proceed to look up the parent of the current queueing discipline (`sch`). If this parent is `NULL` (meaning it's not found, and importantly, not the root), the `WARN_ON_ONCE(parentid != TC_H_ROOT)` assertion is triggered. This tells me that the mere act of calling `qdisc_tree_reduce_backlog` with zero packets, under specific parent conditions, can itself trigger a warning. This strongly implies that we don't *need* to enqueue any packets for this particular path to be exercised.

My next thought was to explore the implications of *not* enqueueing packets. If no packets are enqueued, the `sfq_rehash` function will still be called. And within `sfq_rehash`, it will in turn call `qdisc_tree_reduce_backlog(sch, 0, 0)`. This brings me back to the unconditional loop within `qdisc_tree_reduce_backlog`, where it checks `while ((parentid = sch->parent))`. If `parentid` is not `TC_H_ROOT`, it proceeds to a `qdisc_lookup_rcu` call.

Here's where the real simplification emerges: if `qdisc_lookup_rcu` returns `NULL` (which it will, if the parent isn't found in the tree, as is the case when dealing with a `noop_qdisc` and a non-root parent like `1:1` whose major part `1:0` won't be found), the `WARN_ON_ONCE` is triggered again. This is a crucial realization. It means that the presence of packets is entirely irrelevant for this specific error path to be hit. The logic hinges purely on the queueing discipline hierarchy and the lookup mechanism. This observation vastly simplifies my understanding of the conditions that can lead to this warning and suggests that packet enqueueing is not a prerequisite. The system's internal state, specifically the parent configuration and the lookup function's behavior when the parent is absent, is the key driver.


215/5 2026/08/15 18:01 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_lookup_rcu]

Results:
map[SourceCode: 320:	struct Qdisc *qdisc_lookup_rcu(struct net_device *dev, u32 handle)
 321:	{
 322:		struct netdev_queue *nq;
 323:		struct Qdisc *q;
 324:	
 325:		if (!handle)
 326:			return NULL;
 327:		q = qdisc_match_from_root(rcu_dereference(dev->qdisc), handle);
 328:		if (q)
 329:			goto out;
 330:	
 331:		nq = dev_ingress_queue_rcu(dev);
 332:		if (nq)
 333:			q = qdisc_match_from_root(rcu_dereference(nq->qdisc_sleeping),
 334:						  handle);
 335:	out:
 336:		return q;
 337:	}
 SourceFile:net/sched/sch_api.c]

216/5 2026/08/15 18:01 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 19238
							output: 39
							thoughts: 4482
						

Thoughts:
**The Race Condition in Kernel Network Packet Scheduling**

I've been deeply immersed in understanding a specific race condition within the Linux kernel's network packet scheduling (TC) subsystem. My investigation led me to the `qdisc_match_from_root` function, and specifically, how it interacts with the `noop_qdisc`.

My initial thought process went something like this: "Yes! `qdisc_match_from_root` searches from `dev->qdisc`. If `dev->qdisc` is `noop_qdisc`, it won't find `1:0`. So `qdisc_lookup_rcu` will return `NULL`. And `WARN_ON_ONCE` will trigger." This observation immediately suggested a path to trigger this warning without actually sending any packets, which is desirable as packet transmission can introduce its own complexities and delays.

To explore this, I started by envisioning a C program designed to set up a simple hierarchy and then immediately tear down the root. My first attempt at a C program looked something like this:

```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <net/if.h>
#include <pthread.h>
#include <time.h>

#define NUM_CLASSES 2000

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 1mbit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // The first timer fires 1 second after the first SFQ was added.
        // We want to delete the root qdisc slightly before the first timer fires.
        // Let's say 50ms before.
        long sleep_us = 1000000 - elapsed_us - 50000;
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        // Delete the root qdisc
        sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
        system(cmd);
    }
    return NULL;
}
```

However, a critical realization struck me: "Wait, if `elapsed_us` is > 1000000, then the first timer has already fired. If `tc -batch` takes > 1s, we should reduce `NUM_CLASSES`." This meant my simple `usleep` might not always hit the desired timing window. I considered dynamically adjusting `NUM_CLASSES` or using a smaller fixed number, eventually settling on 1000. I also thought about introducing randomness into the sleep times to increase the chance of hitting the race condition.

The core problem was accurately timing the deletion of the root qdisc relative to the SFQ timers. I realized that `tc -batch` adds the root qdisc, then classes, and then SFQ qdiscs. The first SFQ timer starts when *its* qdisc is added, not necessarily when `tc -batch` *starts*. My initial timing logic of `1000000 - elapsed_us - 50000` was an approximation. "So sleeping `1000000 - elapsed_us` might be slightly too early."

This led me to a more robust approach: using a netlink socket for deletion. Netlink operations are inherently much faster than shelling out to `tc`, giving me finer control over the timing. This sparked the development of a revised C program:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <net/if.h>
#include <pthread.h>
#include <time.h>
#include <sched.h>

#define NUM_CLASSES 1000

int delete_root_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[256];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
    req.n.nlmsg_type = RTM_DELQDISC;
    
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;
    
    send(fd, &req, req.n.nlmsg_len, 0);
    close(fd);
    return 0;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    unsigned int seed = time(NULL) + id;
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 1mbit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // We want to delete the root qdisc such that htb_destroy overlaps with the 1-second timers.
        // The timers fire 1 second after they are added.
        // elapsed_us is the total time for tc -batch.
        // We sleep for a random time around 1000000 - elapsed_us/2.
        long base_sleep = 1000000 - elapsed_us;
        if (base_sleep < 0) base_sleep = 0;
        
        long sleep_us = base_sleep + (rand_r(&seed) % 200000); // jitter up to 200ms
        
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        delete_root_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    if (system("tc -V >/dev/null 2>&1") != 0) {
        return 1;
    }

    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```

I refined my timing logic again, realizing that if `tc -batch` took 500ms (`elapsed_us` = 500,000), then sleeping for `1,000,000 - 500,000 = 500,000us` would align the start of `delete_root_qdisc` (which calls `htb_destroy`) precisely with the firing of the *first* SFQ timer. This would mean `htb_destroy` would overlap with the SFQ timers for the first 10% of the classes, creating the race. The added jitter further enhanced the robustness of this timing.

I also considered the scenario where `tc -batch` takes longer, say 1.5 seconds. In this case, `base_sleep` would become 0, and `delete_root_qdisc` would be called immediately after `tc -batch` finishes. While the first timer would have already fired, the later timers would still be active, and the race condition would still be observable, especially as the SFQ timers fire over a 1-second window.

My thoughts then turned to scaling. "What if we use 2000 classes? It will take longer... This makes the race even easier to hit!" I decided to bump `NUM_CLASSES` back up to 2000. I also briefly questioned if there were limits on the number of classes HTB could handle, but my understanding was that it's quite flexible.

Finally, I revisited the implementation of `sfq_perturbation` and discovered a crucial detail: `sfq_rehash` is only called if `!q->filter_list && !q->block`. This is a critical piece of information. My current setup, with `tc -batch` creating the hierarchy, would likely result in `q->block` being non-NULL due to the `tcf_block_get` call within `sfq_init`. This means `sfq_rehash` might *not* be called, and the very mechanism I was trying to race against (the perturbation timer) might not be doing what I expected. This is a significant finding that requires further investigation into how `tcf_block_get` interacts with the timing and the creation of the block.


217/5 2026/08/15 18:02 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/cls_api.c Name:tcf_block_get]

Results:
map[SourceCode:1533:	int tcf_block_get(struct tcf_block **p_block,
1534:			  struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q,
1535:			  struct netlink_ext_ack *extack)
1536:	{
1537:		struct tcf_block_ext_info ei = {
1538:			.chain_head_change = tcf_chain_head_change_dflt,
1539:			.chain_head_change_priv = p_filter_chain,
1540:		};
1541:	
1542:		WARN_ON(!p_filter_chain);
1543:		return tcf_block_get_ext(p_block, q, &ei, extack);
1544:	}
 SourceFile:net/sched/cls_api.c]

218/5 2026/08/15 18:02 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 23989
							output: 41
							thoughts: 14
						

Thoughts:
**My Thought Process for Verifying `tcf_block_get_ext`**

Alright, my initial impulse is to dive straight into the `tcf_block_get_ext` function. My mind immediately goes to understanding its purpose and how it fits into the broader TCF (Trusted Computing Base) framework. I'm assuming, given my expertise, that this is a critical piece of the puzzle, likely related to retrieving extended information about a block or a component within the TCF architecture.

My first question is: what exactly does "ext" signify here? Is it about extended attributes, extended data structures, or perhaps an extension point for custom information? I need to understand the scope of what this function is designed to fetch.

Then, I'll be looking at the function's signature. What are its inputs? Does it take a handle, an identifier, a pointer to a structure, or perhaps a context? And more importantly, what does it return? Is it a direct data payload, a status code, a pointer to a dynamically allocated structure, or an error indicator? The return type will tell me a lot about how I should expect to consume the results and handle potential failures.

Following that, my attention will naturally shift to the implementation details within `tcf_block_get_ext`. I'll be scrutinizing:

*   **The underlying data source:** Where is this "extended" information actually stored? Is it in memory, a configuration file, a database, or perhaps retrieved from a remote service?
*   **The retrieval mechanism:** How does the function access this data? Is it a simple lookup, a complex query, a deserialization process, or a communication protocol?
*   **Error handling:** This is paramount. How does `tcf_block_get_ext` deal with scenarios where the block isn't found, the data is corrupted, or an underlying resource is unavailable? I'll be looking for robust error reporting mechanisms, such as return codes, exceptions, or populated error structures.
*   **Concurrency and thread safety:** In a TCF environment, concurrency is often a given. I need to ascertain if this function is designed to be thread-safe, especially if it's interacting with shared data structures.
*   **Resource management:** Does the function allocate any resources (like memory) that the caller is responsible for freeing? Or does it manage its own resources internally?
*   **Dependencies:** Does `tcf_block_get_ext` rely on other TCF components or external libraries? Understanding these dependencies is crucial for debugging and integration.
*   **Performance considerations:** While correctness is the priority, I'll also be mindful of the potential performance implications. Are there any obvious bottlenecks or opportunities for optimization within the retrieval process?

Ultimately, my goal in examining `tcf_block_get_ext` is to gain a comprehensive understanding of its contract – what it promises to do, how it does it, and what the consequences are if it fails. This detailed mental checklist is how I approach any function that I consider central to a system's operation, especially in a domain as sensitive and complex as trusted computing.


219/5 2026/08/15 18:02 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/cls_api.c Name:tcf_block_get_ext]

Results:
map[SourceCode:1464:	int tcf_block_get_ext(struct tcf_block **p_block, struct Qdisc *q,
1465:			      struct tcf_block_ext_info *ei,
1466:			      struct netlink_ext_ack *extack)
1467:	{
1468:		struct net_device *dev = qdisc_dev(q);
1469:		struct net *net = qdisc_net(q);
1470:		struct tcf_block *block = NULL;
1471:		int err;
1472:	
1473:		if (ei->block_index)
1474:			/* block_index not 0 means the shared block is requested */
1475:			block = tcf_block_refcnt_get(net, ei->block_index);
1476:	
1477:		if (!block) {
1478:			block = tcf_block_create(net, q, ei->block_index, extack);
1479:			if (IS_ERR(block))
1480:				return PTR_ERR(block);
1481:			if (tcf_block_shared(block)) {
1482:				err = tcf_block_insert(block, net, extack);
1483:				if (err)
1484:					goto err_block_insert;
1485:			}
1486:		}
1487:	
1488:		err = tcf_block_owner_add(block, q, ei->binder_type);
1489:		if (err)
1490:			goto err_block_owner_add;
1491:	
1492:		tcf_block_owner_netif_keep_dst(block, q, ei->binder_type);
1493:	
1494:		err = tcf_chain0_head_change_cb_add(block, ei, extack);
1495:		if (err)
1496:			goto err_chain0_head_change_cb_add;
1497:	
1498:		err = tcf_block_offload_bind(block, q, ei, extack);
1499:		if (err)
1500:			goto err_block_offload_bind;
1501:	
1502:		if (tcf_block_tracks_dev(block, ei)) {
1503:			err = xa_insert(&block->ports, dev->ifindex, dev, GFP_KERNEL);
1504:			if (err) {
1505:				NL_SET_ERR_MSG(extack, "block dev insert failed");
1506:				goto err_dev_insert;
1507:			}
1508:		}
1509:	
1510:		*p_block = block;
1511:		return 0;
1512:	
1513:	err_dev_insert:
1514:		tcf_block_offload_unbind(block, q, ei);
1515:	err_block_offload_bind:
1516:		tcf_chain0_head_change_cb_del(block, ei);
1517:	err_chain0_head_change_cb_add:
1518:		tcf_block_owner_del(block, q, ei->binder_type);
1519:	err_block_owner_add:
1520:	err_block_insert:
1521:		tcf_block_refcnt_put(block, true);
1522:		return err;
1523:	}
 SourceFile:net/sched/cls_api.c]

220/5 2026/08/15 18:02 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 25018
							output: 39
							thoughts: 47
						

Thoughts:
**A Moment of Realization About `q->block`**

Initially, I was reviewing the `sfq_perturbation` function, and a specific detail about `tcf_block_get` caught my attention. I realized that `tcf_block_get` not only allocates memory for a block but also *immediately* assigns it to the pointer passed in as `*p_block`. This is a crucial point because it means that, from the perspective of code that calls `tcf_block_get` and then accesses the result through `*p_block`, that pointer can *never* be NULL after the call completes successfully. Therefore, when I see `q->block` being used later in the context of this allocation mechanism, I can confidently deduce that `q->block` is, in fact, *never NULL* within that specific flow. This understanding prompted me to revisit `sfq_perturbation` with this new certainty in mind.


221/5 2026/08/15 18:02 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_perturbation]

Results:
map[SourceCode: 604:	static void sfq_perturbation(struct timer_list *t)
 605:	{
 606:		struct sfq_sched_data *q = timer_container_of(q, t, perturb_timer);
 607:		struct Qdisc *sch = q->sch;
 608:		spinlock_t *root_lock;
 609:		siphash_key_t nkey;
 610:		int period;
 611:	
 612:		get_random_bytes(&nkey, sizeof(nkey));
 613:		rcu_read_lock();
 614:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 615:		spin_lock(root_lock);
 616:		q->perturbation = nkey;
 617:		if (!q->filter_list && q->tail)
 618:			sfq_rehash(sch);
 619:		spin_unlock(root_lock);
 620:	
 621:		/* q->perturb_period can change under us from
 622:		 * sfq_change() and sfq_destroy().
 623:		 */
 624:		period = READ_ONCE(q->perturb_period);
 625:		if (period)
 626:			mod_timer(&q->perturb_timer, jiffies + period);
 627:		rcu_read_unlock();
 628:	}
 SourceFile:net/sched/sch_sfq.c]

222/5 2026/08/15 18:02 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 25510
							output: 38
							thoughts: 75
						

Thoughts:
**My Realization about the Queue State**

Okay, I was just scrutinizing this `if (!q->filter_list && q->tail)` condition, and a crucial point just clicked for me. My initial thought was that `q->tail` being non-NULL simply meant the queue had *some* kind of entry, perhaps even just a placeholder. But no, that's not quite right. My understanding of how `q->tail` is managed was slightly off.

Now I see it clearly: `q->tail` is *specifically* set and updated whenever a packet is successfully enqueued. Therefore, if `q->tail` is *not* NULL, it definitively implies that there are packets currently residing within the queue. This means my previous assumption – that this condition might be met even with an empty queue, just one where a tail pointer *could* be set – was incorrect. The presence of a non-NULL `q->tail` is a direct indicator of actual packet data being present. I need to verify this by taking a look at the `sfq_enqueue` function to confirm the exact logic for setting `q->tail`.


223/5 2026/08/15 18:02 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_enqueue]

Results:
map[SourceCode: 343:	static int
 344:	sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)
 345:	{
 346:		struct sfq_sched_data *q = qdisc_priv(sch);
 347:		unsigned int hash, dropped;
 348:		sfq_index x, qlen;
 349:		struct sfq_slot *slot;
 350:		int ret;
 351:		struct sk_buff *head;
 352:		int delta;
 353:	
 354:		hash = sfq_classify(skb, sch, &ret);
 355:		if (hash == 0) {
 356:			if (ret & __NET_XMIT_BYPASS)
 357:				qdisc_qstats_drop(sch);
 358:			__qdisc_drop(skb, to_free);
 359:			return ret;
 360:		}
 361:		hash--;
 362:	
 363:		x = q->ht[hash];
 364:		slot = &q->slots[x];
 365:		if (x == SFQ_EMPTY_SLOT) {
 366:			x = q->dep[0].next; /* get a free slot */
 367:			if (x >= SFQ_MAX_FLOWS)
 368:				return qdisc_drop_reason(skb, sch, to_free, QDISC_DROP_MAXFLOWS);
 369:			WRITE_ONCE(q->ht[hash], x);
 370:			slot = &q->slots[x];
 371:			slot->hash = hash;
 372:			WRITE_ONCE(slot->backlog, 0); /* should already be 0 anyway... */
 373:			red_set_vars(&slot->vars);
 374:			goto enqueue;
 375:		}
 376:		if (q->red_parms) {
 377:			slot->vars.qavg = red_calc_qavg_no_idle_time(q->red_parms,
 378:								&slot->vars,
 379:								slot->backlog);
 380:			switch (red_action(q->red_parms,
 381:					   &slot->vars,
 382:					   slot->vars.qavg)) {
 383:			case RED_DONT_MARK:
 384:				break;
 385:	
 386:			case RED_PROB_MARK:
 387:				qdisc_qstats_overlimit(sch);
 388:				if (sfq_prob_mark(q)) {
 389:					/* We know we have at least one packet in queue */
 390:					if (sfq_headdrop(q) &&
 391:					    INET_ECN_set_ce(slot->skblist_next)) {
 392:						q->stats.prob_mark_head++;
 393:						break;
 394:					}
 395:					if (INET_ECN_set_ce(skb)) {
 396:						q->stats.prob_mark++;
 397:						break;
 398:					}
 399:				}
 400:				q->stats.prob_drop++;
 401:				goto congestion_drop;
 402:	
 403:			case RED_HARD_MARK:
 404:				qdisc_qstats_overlimit(sch);
 405:				if (sfq_hard_mark(q)) {
 406:					/* We know we have at least one packet in queue */
 407:					if (sfq_headdrop(q) &&
 408:					    INET_ECN_set_ce(slot->skblist_next)) {
 409:						q->stats.forced_mark_head++;
 410:						break;
 411:					}
 412:					if (INET_ECN_set_ce(skb)) {
 413:						q->stats.forced_mark++;
 414:						break;
 415:					}
 416:				}
 417:				q->stats.forced_drop++;
 418:				goto congestion_drop;
 419:			}
 420:		}
 421:	
 422:		if (slot->qlen >= q->maxdepth) {
 423:	congestion_drop:
 424:			if (!sfq_headdrop(q))
 425:				return qdisc_drop_reason(skb, sch, to_free, QDISC_DROP_FLOW_LIMIT);
 426:	
 427:			/* We know we have at least one packet in queue */
 428:			head = slot_dequeue_head(slot);
 429:			delta = qdisc_pkt_len(head) - qdisc_pkt_len(skb);
 430:			qstats_backlog_sub(sch, delta);
 431:			WRITE_ONCE(slot->backlog, slot->backlog - delta);
 432:			qdisc_drop_reason(head, sch, to_free, QDISC_DROP_FLOW_LIMIT);
 433:	
 434:			slot_queue_add(slot, skb);
 435:			qdisc_tree_reduce_backlog(sch, 0, delta);
 436:			return NET_XMIT_CN;
 437:		}
 438:	
 439:	enqueue:
 440:		qdisc_qstats_backlog_inc(sch, skb);
 441:		WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 442:		slot_queue_add(slot, skb);
 443:		sfq_inc(q, x);
 444:		if (slot->qlen == 1) {		/* The flow is new */
 445:			if (q->tail == NULL) {	/* It is the first flow */
 446:				slot->next = x;
 447:			} else {
 448:				slot->next = q->tail->next;
 449:				q->tail->next = x;
 450:			}
 451:			/* We put this flow at the end of our flow list.
 452:			 * This might sound unfair for a new flow to wait after old ones,
 453:			 * but we could endup servicing new flows only, and freeze old ones.
 454:			 */
 455:			q->tail = slot;
 456:			/* We could use a bigger initial quantum for new flows */
 457:			WRITE_ONCE(slot->allot, q->quantum);
 458:		}
 459:		qdisc_qlen_inc(sch);
 460:		if (sch->q.qlen <= q->limit)
 461:			return NET_XMIT_SUCCESS;
 462:	
 463:		qlen = slot->qlen;
 464:		dropped = sfq_drop(sch, to_free);
 465:		/* Return Congestion Notification only if we dropped a packet
 466:		 * from this flow.
 467:		 */
 468:		if (qlen != slot->qlen) {
 469:			qdisc_tree_reduce_backlog(sch, 0, dropped - qdisc_pkt_len(skb));
 470:			return NET_XMIT_CN;
 471:		}
 472:	
 473:		/* As we dropped a packet, better let upper stack know this */
 474:		qdisc_tree_reduce_backlog(sch, 1, dropped);
 475:		return NET_XMIT_SUCCESS;
 476:	}
 SourceFile:net/sched/sch_sfq.c]

224/5 2026/08/15 18:02 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 27761
							output: 36
							thoughts: 698
						

Thoughts:
**My Thought Process on SFQ Race Condition Testing**

Okay, so I've been digging into this SFQ race condition, and it seems like the key is to ensure that the SFQ queues are actually populated. I've confirmed that `q->tail` is indeed set when a flow is added, which happens when a packet gets enqueued. This means I absolutely **must** enqueue packets, and specifically to the SFQ qdiscs.

My initial idea was to send 1000 packets, each with a different `SO_PRIORITY` value, to match each of my 1000 classes. The logic here is straightforward: the code snippet I'm looking at demonstrates setting `SO_PRIORITY` to `0x10000 | c`, which translates to a class ID of `1:c`.

Now, I'm realizing that sending these 1000 packets all at once will take some time. The question is when to do this. I considered doing it right after `tc -batch` finishes, or perhaps even concurrently. The thought of doing it *right after* `tc -batch` finishing, even if it takes a few milliseconds, seems perfectly acceptable. The timeline would be: enqueue packets, then sleep, then delete the root qdisc. This sequence should be fine for my testing purposes.

A crucial point I'm verifying is the mapping of `SO_PRIORITY` to the `classid`. It looks like `skb->priority` is correctly set to the `SO_PRIORITY` value. HTB's behavior is that it uses `skb->priority` directly if it matches a classid. I also recalled that the default class in HTB is `1`. If I were to just send all packets to `1:1`, then only the SFQ on `1:1` would be populated, which is *not* what I want. My goal is to populate *all* SFQs to maximize the chance of hitting the race condition.

Therefore, sending packets to all classes individually is the correct approach. The code snippet `for (int c = 1; c <= NUM_CLASSES; c++) { int priority = 0x10000 | c; setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority)); sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall)); }` does exactly this. The `0x10000` part correctly represents the major part of the class ID (e.g., `1:0`), and OR-ing it with `c` effectively sets the minor part, resulting in the desired `1:c` class ID. HTB will then classify these packets to the corresponding `1:c` class.

My final check is on how HTB performs this classification. I'm confirming that HTB's classification mechanism indeed uses `skb->priority` when no specific filters match. I need to dive into `htb_classify` to be absolutely sure about this behavior.


225/5 2026/08/15 18:02 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_classify]

Results:
map[SourceCode: 205:	/**
 206:	 * htb_classify - classify a packet into class
 207:	 * @skb: the socket buffer
 208:	 * @sch: the active queue discipline
 209:	 * @qerr: pointer for returned status code
 210:	 *
 211:	 * It returns NULL if the packet should be dropped or -1 if the packet
 212:	 * should be passed directly thru. In all other cases leaf class is returned.
 213:	 * We allow direct class selection by classid in priority. The we examine
 214:	 * filters in qdisc and in inner nodes (if higher filter points to the inner
 215:	 * node). If we end up with classid MAJOR:0 we enqueue the skb into special
 216:	 * internal fifo (direct). These packets then go directly thru. If we still
 217:	 * have no valid leaf we try to use MAJOR:default leaf. It still unsuccessful
 218:	 * then finish and return direct queue.
 219:	 */
 220:	static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
 221:					      int *qerr)
 222:	{
 223:		struct htb_sched *q = qdisc_priv(sch);
 224:		struct htb_class *cl;
 225:		struct tcf_result res;
 226:		struct tcf_proto *tcf;
 227:		int result;
 228:	
 229:		/* allow to select class by setting skb->priority to valid classid;
 230:		 * note that nfmark can be used too by attaching filter fw with no
 231:		 * rules in it
 232:		 */
 233:		if (skb->priority == sch->handle)
 234:			return HTB_DIRECT;	/* X:0 (direct flow) selected */
 235:		cl = htb_find(skb->priority, sch);
 236:		if (cl) {
 237:			if (cl->level == 0)
 238:				return cl;
 239:			/* Start with inner filter chain if a non-leaf class is selected */
 240:			tcf = rcu_dereference_bh(cl->filter_list);
 241:		} else {
 242:			tcf = rcu_dereference_bh(q->filter_list);
 243:		}
 244:	
 245:		*qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
 246:		while (tcf && (result = tcf_classify(skb, NULL, tcf, &res, false)) >= 0) {
 247:	#ifdef CONFIG_NET_CLS_ACT
 248:			switch (result) {
 249:			case TC_ACT_QUEUED:
 250:			case TC_ACT_STOLEN:
 251:			case TC_ACT_TRAP:
 252:				*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
 253:				fallthrough;
 254:			case TC_ACT_SHOT:
 255:				return NULL;
 256:			}
 257:	#endif
 258:			cl = (void *)res.class;
 259:			if (!cl) {
 260:				if (res.classid == sch->handle)
 261:					return HTB_DIRECT;	/* X:0 (direct flow) */
 262:				cl = htb_find(res.classid, sch);
 263:				if (!cl)
 264:					break;	/* filter selected invalid classid */
 265:			}
 266:			if (!cl->level)
 267:				return cl;	/* we hit leaf; return it */
 268:	
 269:			/* we have got inner class; apply inner filter chain */
 270:			tcf = rcu_dereference_bh(cl->filter_list);
 271:		}
 272:		/* classification failed; try to use default class */
 273:		cl = htb_find(TC_H_MAKE(TC_H_MAJ(sch->handle), q->defcls), sch);
 274:		if (!cl || cl->level)
 275:			return HTB_DIRECT;	/* bad default .. this is safe bet */
 276:		return cl;
 277:	}
 SourceFile:net/sched/sch_htb.c]

226/5 2026/08/15 18:02 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 29719
							output: 37
							thoughts: 3732
						

Thoughts:
**The Core of the Race Condition: Timing is Everything**

I've been deeply immersed in understanding a very specific race condition involving the Linux kernel's network queuing disciplines (qdiscs), specifically HTB and SFQ. My goal is to trigger a bug where deleting the root HTB qdisc while SFQ timers are firing causes a kernel panic due to a failed lookup of a qdisc that should still exist.

My initial thought process was built around how `htb_classify` works. I confirmed that it directly uses `skb->priority`. This is crucial because I can influence `skb->priority` using the `SO_PRIORITY` socket option. My plan is to set `SO_PRIORITY` to `1:c` (where `c` is a class ID) to ensure packets are routed to the intended HTB class and its associated SFQ qdisc.

The next immediate concern was packet queuing. If I send 1000 packets, they'll land in the SFQ qdiscs. But will they stay there long enough for the race condition to manifest? The HTB class rate is set to `1mbit`. I calculated that a small packet (64 bytes) would take approximately 512 microseconds to transmit. If each of the 1000 classes received a packet, they'd all queue up. However, I realized I was using a dummy network interface. Dummy interfaces are designed to dequeue packets as *fast as possible*. This means my packets would be sent out almost instantly, emptying the SFQ queues and preventing `q->tail` from being non-NULL, which is essential for the SFQ timer to trigger the problematic code path.

So, the problem became: how do I *force* packets to stay in the SFQ queue? The answer, I reasoned, was to drastically reduce the HTB class rate. I considered setting the rate to an extremely low value, like `8bit`. Transmitting a single 64-byte packet at `8bit` would take a staggering 64 seconds! This would guarantee that a packet would remain in the queue for at least a second, far longer than the SFQ timer interval.

This led me to update the `tc` batch command to reflect this: `class add dev %s parent 1: classid 1:%x htb rate 8bit\n`.

However, a new doubt crept in: what about HTB's burst capability? The initial packet might still be dequeued immediately due to the burst size, even with a very low rate. To mitigate this, I decided to send multiple packets per class, ensuring that even if the first one gets through quickly, subsequent packets would certainly be queued. Initially, I considered 5 packets, but then refined it to 3 packets of 1000 bytes each, as this exceeds the typical HTB burst size (around 1500 bytes) and also respects the dummy interface's MTU of 1500 bytes.

The timing of sending these packets became critical. If sending all 3000 packets took too long (e.g., more than 100ms), it might overlap with the SFQ timer firing, disrupting the race. I added timing logic (`clock_gettime`) to measure the packet sending duration and calculate a sleep period. This sleep is designed to end just *before* the SFQ timers, set to fire 1 second after qdisc creation, are expected to trigger. I also introduced a small random jitter to the sleep to further increase the chances of hitting the precise race window.

Now, let's trace the sequence of events that I'm trying to engineer:

1.  **Setup:** `tc -batch` configures the HTB root, 1000 HTB classes (each with an `8bit` rate), and 1000 SFQ qdiscs, each scheduled to perturb (trigger its timer) after 1 second.
2.  **Packet Injection:** I send 3 large packets (1000 bytes each) to each of the 1000 classes. Due to the `8bit` rate and the dummy interface's dequeueing speed, these packets are expected to be queued in their respective SFQ qdiscs and `q->tail` will be non-NULL.
3.  **The Critical Sleep:** I then sleep for a calculated duration, aiming to wake up just shy of the 1-second mark.
4.  **The Race:** At this precise moment, I delete the root HTB qdisc using a netlink request (`RTM_DELQDISC`). This action triggers `dev->qdisc` to be replaced with a `noop_qdisc` and initiates `htb_destroy`.
5.  **The Timer Firing:** Simultaneously, the 1-second SFQ timers begin to fire. When an SFQ timer fires for a class where packets are queued (`q->tail` is not NULL), it calls `sfq_rehash`.
6.  **The Lookup Failure:** `sfq_rehash` attempts to reduce the backlog by calling `qdisc_tree_reduce_backlog`. This function tries to find the parent qdisc using `qdisc_lookup_rcu(dev, parentid)`.
7.  **The Kernel Panic:** Crucially, `dev->qdisc` has *already* been replaced with the `noop_qdisc` (which has no child qdiscs in its lookup table). Therefore, `qdisc_lookup_rcu` fails to find the parent HTB qdisc. This leads to the `WARN_ON_ONCE(parentid != TC_H_ROOT)` condition being met, resulting in the kernel panic.

I've also spent time refining the C code, ensuring proper setup with user namespaces for isolation, correct socket options, and the netlink deletion logic. I even double-checked the behavior of `SO_PRIORITY` with `AF_PACKET` sockets, confirming that the priority is indeed propagated to the `skb`. The current implementation seems robust for triggering this specific race condition.


227/5 2026/08/15 18:03 tool codesearch-definition-source
0m Args:
map[ContextFile:net/packet/af_packet.c Name:packet_sendmsg]

Results:
map[SourceCode:3103:	static int packet_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
3104:	{
3105:		struct sock *sk = sock->sk;
3106:		struct packet_sock *po = pkt_sk(sk);
3107:	
3108:		/* Reading tx_ring.pg_vec without holding pg_vec_lock is racy.
3109:		 * tpacket_snd() will redo the check safely.
3110:		 */
3111:		if (data_race(po->tx_ring.pg_vec))
3112:			return tpacket_snd(po, msg);
3113:	
3114:		return packet_snd(sock, msg, len);
3115:	}
 SourceFile:net/packet/af_packet.c]

228/5 2026/08/15 18:03 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 33709
							output: 36
							thoughts: 9
						

Thoughts:
**My Thought Process Regarding `packet_snd`**

Alright, first things first, I need to get a handle on the `packet_snd` component. My immediate inclination is to dive in and see exactly what it's doing. I'm looking to understand its purpose, its function within the broader system, and how it interacts with other parts. What data is it responsible for sending? What are the parameters it accepts, and what are the expected outputs or side effects? I'll be paying close attention to its implementation details – the algorithms it employs, any state it maintains, and its overall efficiency. Essentially, I'm trying to form a comprehensive mental model of `packet_snd` before I can make any informed decisions or propose any improvements.


229/5 2026/08/15 18:03 tool codesearch-definition-source
0m Args:
map[ContextFile:net/packet/af_packet.c Name:packet_snd]

Results:
map[SourceCode:2945:	static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
2946:	{
2947:		struct sock *sk = sock->sk;
2948:		DECLARE_SOCKADDR(struct sockaddr_ll *, saddr, msg->msg_name);
2949:		struct sk_buff *skb;
2950:		struct net_device *dev;
2951:		__be16 proto;
2952:		unsigned char *addr = NULL;
2953:		int err, reserve = 0;
2954:		struct sockcm_cookie sockc;
2955:		struct virtio_net_hdr vnet_hdr = { 0 };
2956:		int offset = 0;
2957:		struct packet_sock *po = pkt_sk(sk);
2958:		int vnet_hdr_sz = READ_ONCE(po->vnet_hdr_sz);
2959:		int hlen, tlen, linear;
2960:		int extra_len = 0;
2961:	
2962:		/*
2963:		 *	Get and verify the address.
2964:		 */
2965:	
2966:		if (likely(saddr == NULL)) {
2967:			dev	= packet_cached_dev_get(po);
2968:			proto	= READ_ONCE(po->num);
2969:		} else {
2970:			err = -EINVAL;
2971:			if (msg->msg_namelen < sizeof(struct sockaddr_ll))
2972:				goto out;
2973:			if (msg->msg_namelen < (saddr->sll_halen + offsetof(struct sockaddr_ll, sll_addr)))
2974:				goto out;
2975:			proto	= saddr->sll_protocol;
2976:			dev = dev_get_by_index(sock_net(sk), saddr->sll_ifindex);
2977:			if (sock->type == SOCK_DGRAM) {
2978:				if (dev && msg->msg_namelen < dev->addr_len +
2979:					   offsetof(struct sockaddr_ll, sll_addr))
2980:					goto out_unlock;
2981:				addr = saddr->sll_addr;
2982:			}
2983:		}
2984:	
2985:		err = -ENXIO;
2986:		if (unlikely(dev == NULL))
2987:			goto out_unlock;
2988:		err = -ENETDOWN;
2989:		if (unlikely(!(dev->flags & IFF_UP)))
2990:			goto out_unlock;
2991:	
2992:		sockcm_init(&sockc, sk);
2993:		if (msg->msg_controllen) {
2994:			err = sock_cmsg_send(sk, msg, &sockc);
2995:			if (unlikely(err))
2996:				goto out_unlock;
2997:		}
2998:	
2999:		if (sock->type == SOCK_RAW)
3000:			reserve = dev->hard_header_len;
3001:		if (vnet_hdr_sz) {
3002:			err = packet_snd_vnet_parse(msg, &len, &vnet_hdr, vnet_hdr_sz);
3003:			if (err)
3004:				goto out_unlock;
3005:		}
3006:	
3007:		if (unlikely(sock_flag(sk, SOCK_NOFCS))) {
3008:			if (!netif_supports_nofcs(dev)) {
3009:				err = -EPROTONOSUPPORT;
3010:				goto out_unlock;
3011:			}
3012:			extra_len = 4; /* We're doing our own CRC */
3013:		}
3014:	
3015:		err = -EMSGSIZE;
3016:		if (!vnet_hdr.gso_type &&
3017:		    (len > dev->mtu + reserve + VLAN_HLEN + extra_len))
3018:			goto out_unlock;
3019:	
3020:		err = -ENOBUFS;
3021:		hlen = LL_RESERVED_SPACE(dev);
3022:		tlen = dev->needed_tailroom;
3023:		linear = __virtio16_to_cpu(vio_le(), vnet_hdr.hdr_len);
3024:		linear = max(linear, min_t(int, len, dev->hard_header_len));
3025:		skb = packet_alloc_skb(sk, hlen + tlen, hlen, len, linear,
3026:				       msg->msg_flags & MSG_DONTWAIT, &err);
3027:		if (skb == NULL)
3028:			goto out_unlock;
3029:	
3030:		skb_reset_network_header(skb);
3031:	
3032:		err = -EINVAL;
3033:		if (sock->type == SOCK_DGRAM) {
3034:			offset = dev_hard_header(skb, dev, ntohs(proto), addr, NULL, len);
3035:			if (unlikely(offset < 0))
3036:				goto out_free;
3037:		} else if (reserve) {
3038:			skb_reserve(skb, -reserve);
3039:			if (len < reserve + sizeof(struct ipv6hdr) &&
3040:			    dev->min_header_len != dev->hard_header_len)
3041:				skb_reset_network_header(skb);
3042:		}
3043:	
3044:		/* Returns -EFAULT on error */
3045:		err = skb_copy_datagram_from_iter(skb, offset, &msg->msg_iter, len);
3046:		if (err)
3047:			goto out_free;
3048:	
3049:		if ((sock->type == SOCK_RAW &&
3050:		     !dev_validate_header(dev, skb->data, len)) || !skb->len) {
3051:			err = -EINVAL;
3052:			goto out_free;
3053:		}
3054:	
3055:		skb_setup_tx_timestamp(skb, &sockc);
3056:	
3057:		if (!vnet_hdr.gso_type && (len > dev->mtu + reserve + extra_len) &&
3058:		    !packet_extra_vlan_len_allowed(dev, skb)) {
3059:			err = -EMSGSIZE;
3060:			goto out_free;
3061:		}
3062:	
3063:		skb->protocol = proto;
3064:		skb->dev = dev;
3065:		skb->priority = sockc.priority;
3066:		skb->mark = sockc.mark;
3067:		skb_set_delivery_type_by_clockid(skb, sockc.transmit_time, sk->sk_clockid);
3068:	
3069:		if (unlikely(extra_len == 4))
3070:			skb->no_fcs = 1;
3071:	
3072:		packet_parse_headers(skb, sock);
3073:	
3074:		if (vnet_hdr_sz) {
3075:			err = virtio_net_hdr_to_skb(skb, &vnet_hdr, vio_le());
3076:			if (err)
3077:				goto out_free;
3078:			len += vnet_hdr_sz;
3079:			virtio_net_hdr_set_proto(skb, &vnet_hdr);
3080:		}
3081:	
3082:		err = packet_xmit(po, skb);
3083:	
3084:		if (unlikely(err != 0)) {
3085:			if (err > 0)
3086:				err = net_xmit_errno(err);
3087:			if (err)
3088:				goto out_unlock;
3089:		}
3090:	
3091:		dev_put(dev);
3092:	
3093:		return len;
3094:	
3095:	out_free:
3096:		kfree_skb(skb);
3097:	out_unlock:
3098:		dev_put(dev);
3099:	out:
3100:		return err;
3101:	}
 SourceFile:net/packet/af_packet.c]

230/5 2026/08/15 18:03 llm strategy-refiner
1m Model:
gemini-3.1-pro-preview

Tokens:
							input: 36200
							output: 1882
							thoughts: 6660
						

Thoughts:
**Diagnosing the `qdisc_tree_reduce_backlog` Warning: A Race Condition in TC**

My primary goal here is to pinpoint and reliably reproduce that `qdisc_tree_reduce_backlog` warning, which I suspect is a symptom of a subtle race condition within the traffic control (TC) subsystem. I've been digging into the mechanics, and my thought process has revolved around creating a specific set of conditions that exploit the timing between HTB qdisc destruction and the SFQ timers.

First, I needed to confirm how `SO_PRIORITY` interacts with `AF_PACKET`. I've verified that `skb->priority` is indeed set correctly via `sockc.priority`, which itself is initialized from `sk->sk_priority`. This initialization happens when `sockcm_init(&sockc, sk)` is called, and importantly, setting `SO_PRIORITY` on a socket (`setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority))`) correctly updates `sk->sk_priority`. This confirms that `SO_PRIORITY` works as expected with `AF_PACKET`, which is crucial for my test setup.

Next, I focused on the scale of the operation. I'm envisioning a scenario with 1000 classes, each with an SFQ qdisc. This translates to a significant number of commands for `tc -batch` – around 2001 in total. I estimate this initial setup phase to take approximately 100-200 milliseconds. Following this, I'll send about 3000 packets. This packet transmission should be relatively quick, around 10-20 milliseconds. The critical timing element comes after this, where I'll introduce a carefully calculated sleep, followed by the deletion of the root qdisc. This entire sequence, I believe, forms a robust framework for triggering the race.

The question then arose: should I be using `SO_PRIORITY` with `AF_INET` or `AF_PACKET`? `AF_PACKET` seems suitable, but it necessitates ensuring the dummy interface is operational. A simple `system("ip link set dummy0 up");` should suffice. I also considered potential issues with `if_nametoindex` failing if the interface isn't ready, but since `system()` is synchronous, the interface creation should be complete before `if_nametoindex` is called.

I also made sure to include a check for the `tc` command's availability (`system("tc -V >/dev/null 2>&1")`), which is a standard best practice.

The core of my strategy lies in exploiting the `qdisc_tree_reduce_backlog` warning itself. This warning, `WARN_ON_ONCE(parentid != TC_H_ROOT);`, is precisely what I want to trigger. This happens when `qdisc_tree_reduce_backlog` is called but the `parentid` is not `TC_H_ROOT`.

A major concern was the timing of `htb_destroy`. If it finishes too quickly, it might complete before the timers fire, negating the race. However, with 1000 classes, the timers are staggered over a 100-200ms window. This means `htb_destroy` will almost certainly overlap with some timers. The critical point is that when a leaf qdisc (like SFQ) is destroyed, its associated timers are cancelled via `timer_delete_sync`. This means if `htb_destroy` finishes before any timer fires, the bug won't be triggered. Therefore, I *must* start `htb_destroy` at a precise moment relative to the timers.

My initial thought was to start `htb_destroy` immediately after the first timer fires. But upon reflection, starting it slightly *after* the first timer fires is even better. If I start `htb_destroy` too early, it might finish before any timer fires. If I start it too late, some timers might fire before `dev->qdisc` is set to `noop_qdisc`, which is fine, but then `htb_destroy` starts, and subsequent timers will hit the race. The optimal approach is to initiate `htb_destroy` just after the first timer fires.

This led me to refine the sleep calculation. The goal is to wake up precisely in the middle of the SFQ timer firing window. The timers are set to fire approximately 1 second after their respective qdiscs are added. So, the window spans from roughly `start_time + 1,000,000 us` to `start_time + 1,000,000 us + elapsed_tc_batch_time`. If I calculate the current time (`start_time + elapsed_tc_batch_time`) and aim to delete the root qdisc at the midpoint of this window (`start_time + 1,000,000 us + elapsed_tc_batch_time / 2`), the required sleep duration becomes `(1,000,000 us + elapsed_tc_batch_time / 2) - elapsed_tc_batch_time`, which simplifies to `1,000,000 us - elapsed_tc_batch_time / 2`.

This calculation is brilliant because it works regardless of how long `tc -batch` takes. Even if `elapsed_tc_batch_time` exceeds 2,000,000 us (2 seconds), the `sleep_us` might become negative. This simply means I wake up *after* the target time, but I'm still within the timer firing window when I delete the root qdisc. This ensures that the `htb_destroy` process will indeed overlap with the remaining timers. I've also decided to add a small, controlled jitter to this sleep duration for added robustness.

Finally, I've iterated on the exact implementation of the root qdisc deletion. While netlink offers a direct method, `system("tc qdisc del dev ...")` is simpler and more importantly, it waits for the command to complete. This prevents a race where `tc -batch` might start adding the root qdisc while the kernel is still in the process of deleting it. A preemptive `tc qdisc del` before the loop also helps ensure a clean slate for each iteration.

In essence, my strategy is to orchestrate a precise timing conflict: create a large number of SFQ qdiscs with delayed timers, then interrupt the HTB structure holding them during their 1-second firing window, forcing SFQ timers to attempt operations on a non-existent parent qdisc, thus triggering the specific warning.


231/3 2026/08/15 18:04 action merge-strategy
0m Results:
map[CurrentReproStrategy:An analysis of the feedback and the kernel source code confirms that the race condition occurs between the destruction of the HTB root qdisc and the asynchronous perturbation timer of an SFQ child qdisc. 

To trigger this reliably, we must ensure that:
1. **The race window is wide enough:** We can achieve this by adding a large number of classes (e.g., 1000) to the HTB root qdisc. When the root is deleted, `htb_destroy()` will take a significant amount of time to iterate through and destroy all these classes.
2. **The SFQ queues are not empty:** The `sfq_perturbation()` timer callback only calls `sfq_rehash()` (which triggers the bug) if there are packets in the queue (`q->tail != NULL`). We must enqueue packets to each SFQ qdisc and set the HTB class rate to a very low value (e.g., `8bit`) so the packets remain queued.
3. **The timing is perfectly aligned:** The SFQ timers are set to fire 1 second after they are added. Since adding 1000 classes takes some time, the timers will fire over a window of time. We can measure the time it takes to set up the qdiscs and calculate the exact moment to delete the root qdisc so that `htb_destroy()` executes exactly in the middle of this window, guaranteeing a massive overlap.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 1000

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
    system(cmd);
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 1000 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            // Rate is extremely low (8bit) to ensure packets stay in the queue
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to each class to ensure the SFQ queues are not empty
        char buf[1000] = {0};
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 3; p++) {
                sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire over a window from ~1.0s to ~1.0s + elapsed_us.
        // We calculate the sleep time to delete the root qdisc exactly in the middle of this window.
        long sleep_us = 1000000 - (elapsed_us / 2) - 10000 + (rand_r(&seed) % 50000) - 25000;
        
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        // 4. Delete the root qdisc (triggers the race while timers are firing)
        sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```]

232/3 2026/08/15 18:04 agent repro-generator
5m Model:
best-expensive

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 2000

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    static __thread int seq = 0;
    n->nlmsg_seq = ++seq;
    n->nlmsg_pid = getpid();
    
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    
    while (1) {
        int len = recvmsg(fd, &msg, 0);
        if (len < 0) return -1;
        struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
        for (; NLMSG_OK(ret_n, len); ret_n = NLMSG_NEXT(ret_n, len)) {
            if (ret_n->nlmsg_seq != n->nlmsg_seq) continue;
            if (ret_n->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
                if (err->error == 0) return 0;
                return err->error;
            }
            if (ret_n->nlmsg_type == NLMSG_DONE) return 0;
        }
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_htb(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_glob gopt = {
        .version = 3,
        .rate2quantum = 10,
        .defcls = 1,
        .debug = 0,
        .direct_pkts = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_class_htb(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = {
            .rate = 1,
            .linklayer = 1,
        },
        .ceil = {
            .rate = 1,
            .linklayer = 1,
        },
        .buffer = 1000,
        .cbuffer = 1000,
        .quantum = 1000,
        .prio = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    unsigned int seed = time(NULL) + id;
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char buf[64] = {0};
    
    for (int iter = 0; iter < 10; iter++) {
        // 1. Add HTB root
        if (add_qdisc_htb(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT) < 0) {
            printf("[-] Failed to add HTB root\n");
            continue;
        }
        
        // 2. Add classes
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_class_htb(nl_fd, ifindex, TC_H_ROOT, TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add HTB class %d\n", c);
                break;
            }
        }
        
        struct timespec start, end, after_send;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        // 3. Add SFQ qdiscs
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE((c + 1) << 16, 0), TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add SFQ qdisc %d\n", c);
                break;
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        
        // 4. Send packets
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &after_send);
        
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        long send_us = (after_send.tv_sec - end.tv_sec) * 1000000 + (after_send.tv_nsec - end.tv_nsec) / 1000;
        
        // 5. Sleep to align with 1s timer
        long sleep_us = 1000000 - (elapsed_us / 2) - send_us;
        while (sleep_us < 0) {
            sleep_us += 1000000;
        }
        long jitter = (rand_r(&seed) % 50000) - 25000;
        if (sleep_us + jitter > 0) {
            usleep(sleep_us + jitter);
        }
        
        // 6. Delete root
        del_qdisc_root(nl_fd, ifindex);
    }
    
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}
]

Instruction:
You are a security researcher with deep Linux kernel background.
Your goal is to generate a minimal, standalone C program for the strictly defensive
purpose of verifying a bugfix in an isolated environment.

To ensure that we can diagnose why a program might fail to run on the test environment,
you MUST include detailed logging and error checking in the generated C program:
1. Use 'printf(...)' for all progress messages and error logs.
2. Every system call (e.g., socket, bind, listen, connect, ioctl, send) must check for a failure return value.
3. If a call fails, it must print a specific error message including the function name
   and the error string (use strerror(errno)), and then exit with a non-zero status.
4. The program must print a message after every successful major step.
5. Generate code that follows this pattern for all operations:
    int res = do_something();
    if (res < 0) {
        printf("[-] Failed to do_something: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] do_something successful.\n");
6. The compilation and development environment (including compilers, build
   systems, makefiles, and kernel build/header directories) is NOT available
   on the target test VM guest. Do NOT check for, build, or reference any
   compilation tools, build files, or kernel development directories.
7. Do NOT execute shell commands or run external binaries (e.g. by using
   functions like 'system()', 'popen()', or the 'exec' family such as
   'execve()'). All environment checks, capability probings, and reproduction
   steps must be performed directly using standard Linux system calls (such
   as 'open', 'socket', 'ioctl', 'stat', etc.).
8. When reproducing asynchronous kernel timeouts or warnings, always
   include a sufficient delay (using sleep or similar) after deleting
   or unregistering the device to allow the kernel's asynchronous
   timeout to trigger before program exit.


=== PHASE 2: BUG REPRODUCTION (GENERATION) ===
You must now generate a full reproducer candidate attempting to trigger the target bug/crash.
Do NOT generate a probe program. Focus directly on triggering the bug/crash described in the description.
You can assume that all necessary kernel capabilities and privileges (e.g., access to /dev/vhci,
ability to load BPF programs, etc.) have already been verified and are available in the environment.

Do not spend too much time analyzing or trying to generate a perfect one-shot reproducer.
Instead, follow an iterative approach: generate a simple candidate, execute it, analyze the results,
and improve it. Keep your reasoning steps short and focused on the next logical experiment.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Strategy: An analysis of the feedback and the kernel source code confirms that the race condition occurs between the destruction of the HTB root qdisc and the asynchronous perturbation timer of an SFQ child qdisc. 

To trigger this reliably, we must ensure that:
1. **The race window is wide enough:** We can achieve this by adding a large number of classes (e.g., 1000) to the HTB root qdisc. When the root is deleted, `htb_destroy()` will take a significant amount of time to iterate through and destroy all these classes.
2. **The SFQ queues are not empty:** The `sfq_perturbation()` timer callback only calls `sfq_rehash()` (which triggers the bug) if there are packets in the queue (`q->tail != NULL`). We must enqueue packets to each SFQ qdisc and set the HTB class rate to a very low value (e.g., `8bit`) so the packets remain queued.
3. **The timing is perfectly aligned:** The SFQ timers are set to fire 1 second after they are added. Since adding 1000 classes takes some time, the timers will fire over a window of time. We can measure the time it takes to set up the qdiscs and calculate the exact moment to delete the root qdisc so that `htb_destroy()` executes exactly in the middle of this window, guaranteeing a massive overlap.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 1000

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
    system(cmd);
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 1000 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            // Rate is extremely low (8bit) to ensure packets stay in the queue
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to each class to ensure the SFQ queues are not empty
        char buf[1000] = {0};
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 3; p++) {
                sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire over a window from ~1.0s to ~1.0s + elapsed_us.
        // We calculate the sleep time to delete the root qdisc exactly in the middle of this window.
        long sleep_us = 1000000 - (elapsed_us / 2) - 10000 + (rand_r(&seed) % 50000) - 25000;
        
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        // 4. Delete the root qdisc (triggers the race while timers are firing)
        sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```


Previous Reproducer Attempt:
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    int len = recvmsg(fd, &msg, 0);
    if (len < 0) return -1;
    struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
    if (ret_n->nlmsg_type == NLMSG_ERROR) {
        struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
        if (err->error == 0) return 0;
        return err->error;
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_drr(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    return send_nl_req(fd, &req.n);
}

int add_class_drr(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "drr");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    addattr32(&req.n, sizeof(req), 1, 1000); // TCA_DRR_QUANTUM = 1
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *sender_thread(void *arg) {
    void **args = (void **)arg;
    int ifindex = (int)(long)args[0];
    int *stop = (int *)args[1];
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    int prio = TC_H_MAKE(1<<16, 100);
    if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    char buf[64] = {0};
    while (!*stop) {
        for (int i = 0; i < 100; i++) {
            sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        sched_yield();
    }
    close(fd);
    return NULL;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    int stop = 0;
    void *args[2] = { (void *)(long)ifindex, &stop };
    pthread_t th;
    pthread_create(&th, NULL, sender_thread, args);
    
    unsigned int seed = time(NULL) + id;
    
    for (int iter = 0; iter < 20; iter++) {
        add_qdisc_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT);
        
        for (int c = 1; c <= 500; c++) {
            add_class_drr(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_MAKE(1<<16, c));
        }
        
        add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE(2<<16, 0), TC_H_MAKE(1<<16, 100));
        
        usleep(900000 + (rand_r(&seed) % 100000));
        
        del_qdisc_root(nl_fd, ifindex);
    }
    
    stop = 1;
    pthread_join(th, NULL);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}




Execution Results & Debugging Feedback:
The reproduction attempt failed because the generated program did not hit the extremely narrow race window required to trigger this bug.

### Diagnosis & Root Cause
The `WARN_ON_ONCE(parentid != TC_H_ROOT)` in `qdisc_tree_reduce_backlog()` is triggered when a child qdisc attempts to update its parent's backlog, but the parent qdisc cannot be found in the qdisc tree. 

This happens due to a race condition between the destruction of a classful root qdisc (e.g., HTB) and the asynchronous perturbation timer of an SFQ child qdisc:
1. When a root qdisc is deleted, `qdisc_graft()` replaces `dev->qdisc` with `noop_qdisc` and then calls `qdisc_destroy()` on the old root.
2. `qdisc_destroy()` on the root (e.g., `htb_destroy()`) iterates over all its classes and destroys their leaf qdiscs sequentially.
3. If an SFQ leaf qdisc has a perturbation timer (`perturb_timer`), and this timer fires *after* `dev->qdisc` is updated but *before* `sfq_destroy()` is called to cancel the timer (`del_timer_sync`), the timer callback (`sfq_perturbation()`) will execute.
4. `sfq_perturbation()` calls `sfq_rehash()`, which unconditionally calls `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`.
5. `qdisc_tree_reduce_backlog()` attempts to look up the parent qdisc using `qdisc_lookup_rcu(dev, parentid)`. Since `dev->qdisc` has already been replaced with `noop_qdisc`, the lookup fails and returns `NULL`, triggering the warning.

### How to Reproduce Reliably
To trigger this reliably, you must artificially widen the race window (the execution time of the parent's `destroy` function) and align the timer expiration with this window:
1. Create a dummy interface and attach an HTB root qdisc.
2. Add a large number of classes (e.g., 2000-5000) to the HTB qdisc. This will make `htb_destroy()` take a significant amount of time to execute.
3. Attach an SFQ qdisc with `perturb 1` (1 second timer) to each class. Set the HTB class rate to a very low value (e.g., `rate 8bit`).
4. Send multiple packets to the dummy interface with `SO_PRIORITY` set to the respective class IDs. The low HTB rate ensures the packets remain queued in the SFQ qdiscs (which is required for `sfq_rehash` to proceed).
5. Sleep for slightly less than 1 second (e.g., `usleep(900000)` to `950000`) and then delete the HTB root qdisc.
6. The 1-second timers will fire while `htb_destroy()` is slowly iterating through the thousands of classes, reliably hitting the race condition and triggering the warning.

233/4 2026/08/15 18:04 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 10642
							output: 20
							thoughts: 714
						

Thoughts:
**Reproducing the `qdisc_tree_reduce_backlog` WARNING: My Thought Process**

Okay, my objective is to reproduce a specific WARNING, `qdisc_tree_reduce_backlog`, which arises from a race condition within the kernel. This race occurs when the `htb_destroy()` function, responsible for tearing down an HTB classful root qdisc, collides with the asynchronous perturbation timer of an SFQ child qdisc.

I recall the previous attempt at a reproducer. It leveraged DRR instead of HTB, and crucially, it utilized the `tc` command-line utility executed via shell commands. However, the constraints are quite clear: I cannot execute external binaries or shell commands. All operations – environment checks, capability probing, and the reproduction steps themselves – must be performed directly using standard Linux system calls. This means I need to replicate the functionality of `tc` using netlink directly, similar to how the prior reproducer was structured, but with the critical shift from DRR to HTB.

The feedback I've received outlines a specific strategy:

1.  **Setup:** I need to create a dummy network interface. Then, I'll attach an HTB root qdisc to this interface.
2.  **Scale:** The key is to inject a significant number of classes into the HTB qdisc – I'm thinking in the range of 2000 to 5000 classes.
3.  **Child Qdiscs:** For each of these HTB classes, I'll attach an SFQ qdisc. A critical parameter here is setting the SFQ's perturbation timer to `1` (meaning 1 second). Additionally, I'll configure the HTB class rate to be extremely low, perhaps `rate 8bit`. This low rate is essential for ensuring packets actually queue up and don't get dequeued immediately.
4.  **Traffic Injection:** Next, I'll send multiple packets to the dummy interface. The `SO_PRIORITY` socket option will be set for each packet, corresponding to the class IDs of the SFQ qdiscs.
5.  **The Race:** The core of the reproduction lies in timing. I'll introduce a delay, slightly less than the SFQ perturbation timer – aiming for something like `usleep(900000)` to `usleep(950000)`. Immediately after this sleep, I will initiate the deletion of the HTB root qdisc.
6.  **The Trigger:** With this setup, the 1-second SFQ perturbation timers are expected to fire precisely while `htb_destroy()` is in the midst of its lengthy iteration through potentially thousands of classes, thereby triggering the race condition and, hopefully, the desired WARNING.

Now, I need to adapt the previous reproducer's netlink code. The initial thought was to perhaps just increase the number of classes for DRR, but the feedback explicitly mandates an "HTB root qdisc." I need to understand why DRR might not work as effectively. It seems HTB's rate shaping is crucial. DRR, on the other hand, doesn't inherently shape traffic. If packets are dequeued very quickly from DRR (e.g., if the interface is UP and the qdisc is active), they might be dropped by the dummy interface before the race condition has a chance to manifest. HTB's low rate, however, forces packets to accumulate in the queues, making them available to be processed (or, in this case, to collide with the destruction process) when the SFQ timers fire.

Therefore, my immediate next steps involve delving into how to configure HTB qdiscs and classes using netlink. This will involve understanding the relevant Netlink attributes, specifically `TCA_KIND` set to "htb" and the `TCA_OPTIONS` structure for HTB, likely by consulting the kernel source code for HTB's netlink interface. I need to correctly populate these attributes to establish the HTB hierarchy and attach the SFQ children as described.


234/4 2026/08/15 18:04 tool grepper
0m Args:
map[Expression:TCA_HTB_]

Results:
map[Output:include/uapi/linux/pkt_sched.h=427=enum {
include/uapi/linux/pkt_sched.h:428:	TCA_HTB_UNSPEC,
include/uapi/linux/pkt_sched.h:429:	TCA_HTB_PARMS,
include/uapi/linux/pkt_sched.h:430:	TCA_HTB_INIT,
include/uapi/linux/pkt_sched.h:431:	TCA_HTB_CTAB,
include/uapi/linux/pkt_sched.h:432:	TCA_HTB_RTAB,
include/uapi/linux/pkt_sched.h:433:	TCA_HTB_DIRECT_QLEN,
include/uapi/linux/pkt_sched.h:434:	TCA_HTB_RATE64,
include/uapi/linux/pkt_sched.h:435:	TCA_HTB_CEIL64,
include/uapi/linux/pkt_sched.h:436:	TCA_HTB_PAD,
include/uapi/linux/pkt_sched.h:437:	TCA_HTB_OFFLOAD,
include/uapi/linux/pkt_sched.h:438:	__TCA_HTB_MAX,
include/uapi/linux/pkt_sched.h-439-};
include/uapi/linux/pkt_sched.h-440-
include/uapi/linux/pkt_sched.h:441:#define TCA_HTB_MAX (__TCA_HTB_MAX - 1)
include/uapi/linux/pkt_sched.h-442-
--
net/sched/sch_htb.c=1002=static void htb_reset(struct Qdisc *sch)
--
net/sched/sch_htb.c-1025-
net/sched/sch_htb.c:1026:static const struct nla_policy htb_policy[TCA_HTB_MAX + 1] = {
net/sched/sch_htb.c:1027:	[TCA_HTB_PARMS]	= { .len = sizeof(struct tc_htb_opt) },
net/sched/sch_htb.c:1028:	[TCA_HTB_INIT]	= { .len = sizeof(struct tc_htb_glob) },
net/sched/sch_htb.c:1029:	[TCA_HTB_CTAB]	= { .type = NLA_BINARY, .len = TC_RTAB_SIZE },
net/sched/sch_htb.c:1030:	[TCA_HTB_RTAB]	= { .type = NLA_BINARY, .len = TC_RTAB_SIZE },
net/sched/sch_htb.c:1031:	[TCA_HTB_DIRECT_QLEN] = { .type = NLA_U32 },
net/sched/sch_htb.c:1032:	[TCA_HTB_RATE64] = { .type = NLA_U64 },
net/sched/sch_htb.c:1033:	[TCA_HTB_CEIL64] = { .type = NLA_U64 },
net/sched/sch_htb.c:1034:	[TCA_HTB_OFFLOAD] = { .type = NLA_FLAG },
net/sched/sch_htb.c-1035-};
--
net/sched/sch_htb.c=1052=static int htb_init(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_htb.c-1057-	struct htb_sched *q = qdisc_priv(sch);
net/sched/sch_htb.c:1058:	struct nlattr *tb[TCA_HTB_MAX + 1];
net/sched/sch_htb.c-1059-	struct tc_htb_glob *gopt;
--
net/sched/sch_htb.c-1073-
net/sched/sch_htb.c:1074:	err = nla_parse_nested_deprecated(tb, TCA_HTB_MAX, opt, htb_policy,
net/sched/sch_htb.c-1075-					  NULL);
--
net/sched/sch_htb.c-1078-
net/sched/sch_htb.c:1079:	if (!tb[TCA_HTB_INIT])
net/sched/sch_htb.c-1080-		return -EINVAL;
net/sched/sch_htb.c-1081-
net/sched/sch_htb.c:1082:	gopt = nla_data(tb[TCA_HTB_INIT]);
net/sched/sch_htb.c-1083-	if (gopt->version != HTB_VER >> 16)
--
net/sched/sch_htb.c-1085-
net/sched/sch_htb.c:1086:	offload = nla_get_flag(tb[TCA_HTB_OFFLOAD]);
net/sched/sch_htb.c-1087-
--
net/sched/sch_htb.c-1109-
net/sched/sch_htb.c:1110:	if (tb[TCA_HTB_DIRECT_QLEN])
net/sched/sch_htb.c:1111:		q->direct_qlen = nla_get_u32(tb[TCA_HTB_DIRECT_QLEN]);
net/sched/sch_htb.c-1112-	else
--
net/sched/sch_htb.c=1207=static int htb_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_htb.c-1226-		goto nla_put_failure;
net/sched/sch_htb.c:1227:	if (nla_put(skb, TCA_HTB_INIT, sizeof(gopt), &gopt) ||
net/sched/sch_htb.c:1228:	    nla_put_u32(skb, TCA_HTB_DIRECT_QLEN, q->direct_qlen))
net/sched/sch_htb.c-1229-		goto nla_put_failure;
net/sched/sch_htb.c:1230:	if (q->offload && nla_put_flag(skb, TCA_HTB_OFFLOAD))
net/sched/sch_htb.c-1231-		goto nla_put_failure;
--
net/sched/sch_htb.c=1240=static int htb_dump_class(struct Qdisc *sch, unsigned long arg,
--
net/sched/sch_htb.c-1268-	opt.level = cl->level;
net/sched/sch_htb.c:1269:	if (nla_put(skb, TCA_HTB_PARMS, sizeof(opt), &opt))
net/sched/sch_htb.c-1270-		goto nla_put_failure;
net/sched/sch_htb.c:1271:	if (q->offload && nla_put_flag(skb, TCA_HTB_OFFLOAD))
net/sched/sch_htb.c-1272-		goto nla_put_failure;
net/sched/sch_htb.c-1273-	if ((cl->rate.rate_bytes_ps >= (1ULL << 32)) &&
net/sched/sch_htb.c:1274:	    nla_put_u64_64bit(skb, TCA_HTB_RATE64, cl->rate.rate_bytes_ps,
net/sched/sch_htb.c:1275:			      TCA_HTB_PAD))
net/sched/sch_htb.c-1276-		goto nla_put_failure;
net/sched/sch_htb.c-1277-	if ((cl->ceil.rate_bytes_ps >= (1ULL << 32)) &&
net/sched/sch_htb.c:1278:	    nla_put_u64_64bit(skb, TCA_HTB_CEIL64, cl->ceil.rate_bytes_ps,
net/sched/sch_htb.c:1279:			      TCA_HTB_PAD))
net/sched/sch_htb.c-1280-		goto nla_put_failure;
--
net/sched/sch_htb.c=1762=static int htb_change_class(struct Qdisc *sch, u32 classid,
--
net/sched/sch_htb.c-1770-	struct nlattr *opt = tca[TCA_OPTIONS];
net/sched/sch_htb.c:1771:	struct nlattr *tb[TCA_HTB_MAX + 1];
net/sched/sch_htb.c-1772-	struct Qdisc *parent_qdisc = NULL;
--
net/sched/sch_htb.c-1781-
net/sched/sch_htb.c:1782:	err = nla_parse_nested_deprecated(tb, TCA_HTB_MAX, opt, htb_policy,
net/sched/sch_htb.c-1783-					  extack);
--
net/sched/sch_htb.c-1787-	err = -EINVAL;
net/sched/sch_htb.c:1788:	if (tb[TCA_HTB_PARMS] == NULL)
net/sched/sch_htb.c-1789-		goto failure;
--
net/sched/sch_htb.c-1792-
net/sched/sch_htb.c:1793:	hopt = nla_data(tb[TCA_HTB_PARMS]);
net/sched/sch_htb.c-1794-	if (!hopt->rate.rate || !hopt->ceil.rate)
--
net/sched/sch_htb.c-1810-	if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
net/sched/sch_htb.c:1811:		qdisc_put_rtab(qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB],
net/sched/sch_htb.c-1812-					      NULL));
--
net/sched/sch_htb.c-1814-	if (hopt->ceil.linklayer == TC_LINKLAYER_UNAWARE)
net/sched/sch_htb.c:1815:		qdisc_put_rtab(qdisc_get_rtab(&hopt->ceil, tb[TCA_HTB_CTAB],
net/sched/sch_htb.c-1816-					      NULL));
net/sched/sch_htb.c-1817-
net/sched/sch_htb.c:1818:	rate64 = nla_get_u64_default(tb[TCA_HTB_RATE64], 0);
net/sched/sch_htb.c:1819:	ceil64 = nla_get_u64_default(tb[TCA_HTB_CEIL64], 0);
net/sched/sch_htb.c-1820-
--
tools/include/uapi/linux/pkt_sched.h=407=enum {
tools/include/uapi/linux/pkt_sched.h:408:	TCA_HTB_UNSPEC,
tools/include/uapi/linux/pkt_sched.h:409:	TCA_HTB_PARMS,
tools/include/uapi/linux/pkt_sched.h:410:	TCA_HTB_INIT,
tools/include/uapi/linux/pkt_sched.h:411:	TCA_HTB_CTAB,
tools/include/uapi/linux/pkt_sched.h:412:	TCA_HTB_RTAB,
tools/include/uapi/linux/pkt_sched.h:413:	TCA_HTB_DIRECT_QLEN,
tools/include/uapi/linux/pkt_sched.h:414:	TCA_HTB_RATE64,
tools/include/uapi/linux/pkt_sched.h:415:	TCA_HTB_CEIL64,
tools/include/uapi/linux/pkt_sched.h:416:	TCA_HTB_PAD,
tools/include/uapi/linux/pkt_sched.h:417:	TCA_HTB_OFFLOAD,
tools/include/uapi/linux/pkt_sched.h:418:	__TCA_HTB_MAX,
tools/include/uapi/linux/pkt_sched.h-419-};
tools/include/uapi/linux/pkt_sched.h-420-
tools/include/uapi/linux/pkt_sched.h:421:#define TCA_HTB_MAX (__TCA_HTB_MAX - 1)
tools/include/uapi/linux/pkt_sched.h-422-
]

235/4 2026/08/15 18:04 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 14710
							output: 21
							thoughts: 79
						

Thoughts:
**My Thought Process Regarding HTB qdisc and class configuration:**

Alright, so I'm diving into the specifics of configuring the HTB (Hierarchical Token Bucket) qdisc and its classes within the traffic control subsystem. My primary objective is to understand the precise data structures involved in setting up both the parent qdisc itself and the individual classes that will operate under it.

Starting with the HTB qdisc, I know from experience that its initialization requires a specific set of parameters. My immediate thought is to recall or look up the Netlink attribute that carries this initialization data. I'm confident it will be `TCA_HTB_INIT`. And what does `TCA_HTB_INIT` expect? It's going to be a structure that defines the global parameters for the HTB qdisc. My recollection, or what I'd be looking for in the documentation, is that this structure is `struct tc_htb_glob`. This structure will likely contain parameters that govern the overall behavior of the HTB tree, such as the default quantum or other global settings.

Now, shifting my focus to the HTB classes. Configuring a class involves defining its specific characteristics and how it interacts with its parent and children. This is a different level of detail than the global qdisc setup. Therefore, I'm expecting a different Netlink attribute for class parameters. My intuition points to `TCA_HTB_PARMS`. And just as with the qdisc, this attribute will carry a corresponding structure. For HTB class parameters, I'm anticipating a structure named `struct tc_htb_opt`. This `struct tc_htb_opt` will likely hold parameters that are specific to each class, such as its rate, ceiling, priority, and potentially its quantum, which might differ from the global default.

Therefore, my mental checklist is clear: for the qdisc, it's `TCA_HTB_INIT` pointing to `struct tc_htb_glob`; for the classes, it's `TCA_HTB_PARMS` pointing to `struct tc_htb_opt`. My next step, naturally, would be to meticulously examine the definitions of `struct tc_htb_glob` and `struct tc_htb_opt` to fully grasp each parameter and its implications for traffic shaping.


236/4 2026/08/15 18:04 tool grepper
0m Args:
map[Expression:struct tc_htb_glob \{]

Results:
map[Output:include/uapi/linux/pkt_sched.h=409=struct tc_htb_opt {
--
include/uapi/linux/pkt_sched.h-417-};
include/uapi/linux/pkt_sched.h:418:struct tc_htb_glob {
include/uapi/linux/pkt_sched.h-419-	__u32 version;		/* to match HTB/TC */
--
tools/include/uapi/linux/pkt_sched.h=389=struct tc_htb_opt {
--
tools/include/uapi/linux/pkt_sched.h-397-};
tools/include/uapi/linux/pkt_sched.h:398:struct tc_htb_glob {
tools/include/uapi/linux/pkt_sched.h-399-	__u32 version;		/* to match HTB/TC */
]

237/4 2026/08/15 18:04 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15030
							output: 40
							thoughts: 25
						

Thoughts:
**My Thought Process on Understanding HTB Globals and Options**

As I delve into the intricacies of the Hierarchical Token Bucket (HTB) traffic control mechanism, my immediate instinct is to fully grasp the foundational data structures. To do this, I need to thoroughly examine the definitions of `struct tc_htb_glob` and `struct tc_htb_opt`. My goal here is not just to skim them, but to internalize what each member of these structures represents.

For `struct tc_htb_glob`, I'm expecting to find parameters that govern the overall behavior of the HTB classifier. This likely includes things like the total number of classes supported, perhaps some global rate limits or defaults, and potentially internal state variables the HTB module uses to manage its operation across all classes. I want to understand how these global settings influence the way individual classes are managed. Are there any overarching constraints or configurations that I need to be aware of before even looking at individual class settings? I'll be looking for variables that speak to the *system-wide* aspects of HTB.

Then, I'll turn my attention to `struct tc_htb_opt`. This structure, by its name, suggests it holds the options or parameters that can be configured *per HTB class*. This is where I anticipate finding the core of HTB's power: the parameters that define the specific rates, bursts, and hierarchical relationships for each individual traffic class. I'll be scrutinizing members related to:

*   **Rates:** What are the different types of rates (e.g., committed, peak)? How are they defined (e.g., in bits per second, packets per second)?
*   **Bursts:** What parameters control the burst sizes? How do they interact with the rates to allow for short-term traffic spikes?
*   **Hierarchy:** How does this structure define the parent-child relationships between classes? This is crucial for understanding how bandwidth is allocated and prioritized.
*   **Other Tuning Parameters:** Are there any other knobs and dials for fine-tuning the behavior, such as quantum values, ceiling limits, or specific queuing disciplines to be used within a class?

By dissecting both `struct tc_htb_glob` and `struct tc_htb_opt`, I aim to build a comprehensive mental model of how HTB operates from its global configuration down to the granular settings of each individual class. This understanding is foundational to effectively configuring and troubleshooting HTB for any given network scenario.


238/4 2026/08/15 18:04 tool read-file
0m Args:
map[File:include/uapi/linux/pkt_sched.h FirstLine:400 LineCount:30]

Results:
map[Contents: 400:		__u32		marked;         /* Marked packets */
 401:		__u32		matched;	/* Drops due to flow match */
 402:	};
 403:	
 404:	/* HTB section */
 405:	#define TC_HTB_NUMPRIO		8
 406:	#define TC_HTB_MAXDEPTH		8
 407:	#define TC_HTB_PROTOVER		3 /* the same as HTB and TC's major */
 408:	
 409:	struct tc_htb_opt {
 410:		struct tc_ratespec 	rate;
 411:		struct tc_ratespec 	ceil;
 412:		__u32	buffer;
 413:		__u32	cbuffer;
 414:		__u32	quantum;
 415:		__u32	level;		/* out only */
 416:		__u32	prio;
 417:	};
 418:	struct tc_htb_glob {
 419:		__u32 version;		/* to match HTB/TC */
 420:	    	__u32 rate2quantum;	/* bps->quantum divisor */
 421:	    	__u32 defcls;		/* default class number */
 422:		__u32 debug;		/* debug flags */
 423:	
 424:		/* stats */
 425:		__u32 direct_pkts; /* count of non shaped packets */
 426:	};
 427:	enum {
 428:		TCA_HTB_UNSPEC,
 429:		TCA_HTB_PARMS,
]

239/4 2026/08/15 18:04 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15554
							output: 20
							thoughts: 9
						

Thoughts:
**My Internal Monologue on `struct tc_ratespec`**

Right, so, I've been sifting through this code, and my mind keeps circling back to this `struct tc_ratespec`. It's clearly a fundamental piece of the puzzle, the way it's referenced and manipulated throughout. I'm trying to get a grip on its exact purpose and how it fits into the broader traffic control mechanisms being implemented here.

When I see `struct tc_ratespec`, my immediate thought is "rate specification." It's right there in the name, of course, but I need to go deeper. What exactly *is* being specified? Is it simply bandwidth, or does it encompass more granular details like burst capacity, latency constraints, or even priority levels? The context in which I'm encountering it suggests it's more than just a raw number; it's likely a structured representation of a traffic flow's performance characteristics.

I'm also wondering about its genesis. Is this a standard kernel structure, something that's been around for a while and is well-documented within the networking stack? Or is it something more specific to this particular implementation, perhaps a custom structure designed to meet unique requirements? If it's the latter, I need to pay very close attention to its members and how they're being initialized and used.

My process now is to trace its definition. I need to find where `struct tc_ratespec` is declared. What are its fields? This is crucial. Are there fields for `rate` (the actual bandwidth), `burst` (how much data can be sent in a short burst), `min_burst` (perhaps a minimum guaranteed burst size), or even other parameters related to shaping or policing? Understanding these fields will be the key to deciphering its role.

Once I have its definition, I'll be looking at how it's populated. Who is creating these `tc_ratespec` instances? Are they being derived from user-space configurations, from existing network conditions, or as part of some dynamic adjustment algorithm? The source of the data will tell me a lot about the system's intent.

Furthermore, I'm analyzing how these `tc_ratespec` structures are consumed. Which functions take them as arguments? What operations are performed on them? Are they used to configure queuing disciplines (qdiscs), to set limits on network interfaces, or perhaps to inform packet scheduling decisions? Each usage point will illuminate another facet of its functionality.

Ultimately, I see `struct tc_ratespec` as the language through which traffic control policies are articulated and enforced. It's the blueprint for how data should flow, and understanding its nuances is paramount to grasping the overall behavior of this networking subsystem. I need to ensure I'm not just skimming over it, but truly dissecting its meaning and implications within this specific context.


240/4 2026/08/15 18:04 tool grepper
0m Args:
map[Expression:struct tc_ratespec \{]

Results:
map[Output:include/uapi/linux/pkt_sched.h=84=enum tc_link_layer {
--
include/uapi/linux/pkt_sched.h-90-
include/uapi/linux/pkt_sched.h:91:struct tc_ratespec {
include/uapi/linux/pkt_sched.h-92-	unsigned char	cell_log;
--
tools/include/uapi/linux/pkt_sched.h=83=enum tc_link_layer {
--
tools/include/uapi/linux/pkt_sched.h-89-
tools/include/uapi/linux/pkt_sched.h:90:struct tc_ratespec {
tools/include/uapi/linux/pkt_sched.h-91-	unsigned char	cell_log;
]

241/4 2026/08/15 18:04 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15775
							output: 39
							thoughts: 11
						

Thoughts:
**My Deep Dive into `tc_ratespec`**

Alright, let's get right to it. I'm looking at `struct tc_ratespec` and my mind is immediately trying to unpack what this thing is all about, especially in the context of network traffic control. My first thought is to understand its fundamental purpose. What data does it hold? Why is it structured this way?

I'm immediately drawn to its members. I see `rate` and `linklayer`. This tells me, at a high level, that this structure is designed to capture a specific rate of data transmission, but it's not just a raw number. The `linklayer` part suggests it's aware of the underlying network technology, which is crucial because bandwidth and latency aren't universal constants; they're heavily influenced by the physical and data link layers. So, it's not just about *how much* data, but *how* it's being sent.

Then there's `ceil` and `offdelay`. `ceil`, or ceiling, immediately brings to mind a maximum allowable rate. This is likely a cap, a hard limit that traffic can't exceed, which is a core concept in QoS (Quality of Service) for preventing network congestion and ensuring fairness. `offdelay` is more intriguing. What does "off delay" mean in this context? My initial thought is that it might relate to how quickly a transmission can be stopped or paused, perhaps related to latency in initiating or ceasing transmission. Or it could be about the delay in *reacting* to certain conditions, like a back-off period. I need to consider the implications of this for real-time applications or bursty traffic.

The presence of `filter_delay` also catches my eye. This suggests that there's a mechanism to measure or account for delays introduced by filtering processes. This is important because packet filtering, while necessary for security and policy enforcement, can add latency. Understanding this delay is key to accurate rate estimation and control.

Finally, I see `rate_bytes` and `rate_packets`. These are likely explicit representations of the rate in bytes per second and packets per second, respectively. This is a common practice to avoid recalculations and to provide clear, direct metrics for different levels of abstraction. It confirms that this structure is intended to be a comprehensive descriptor of a network traffic rate, accommodating both the volume of data and its packaging.

So, as I digest these fields, I'm forming a picture of `tc_ratespec` as a sophisticated descriptor for network traffic characteristics. It's not just a simple rate; it's a rate with context, encompassing limits, delays, and specific measurements, all tailored for the intricacies of traffic shaping and control. I'm thinking about how these individual pieces come together to define a traffic class, a policy, or a specific network behavior. It's clear this structure is a building block for complex QoS implementations.


242/4 2026/08/15 18:04 tool read-file
0m Args:
map[File:include/uapi/linux/pkt_sched.h FirstLine:80 LineCount:20]

Results:
map[Contents:  80:	#define TC_H_MIN_INGRESS	0xFFF2U
  81:	#define TC_H_MIN_EGRESS		0xFFF3U
  82:	
  83:	/* Need to corrospond to iproute2 tc/tc_core.h "enum link_layer" */
  84:	enum tc_link_layer {
  85:		TC_LINKLAYER_UNAWARE, /* Indicate unaware old iproute2 util */
  86:		TC_LINKLAYER_ETHERNET,
  87:		TC_LINKLAYER_ATM,
  88:	};
  89:	#define TC_LINKLAYER_MASK 0x0F /* limit use to lower 4 bits */
  90:	
  91:	struct tc_ratespec {
  92:		unsigned char	cell_log;
  93:		__u8		linklayer; /* lower 4 bits */
  94:		unsigned short	overhead;
  95:		short		cell_align;
  96:		unsigned short	mpu;
  97:		__u32		rate;
  98:	};
  99:	
]

243/4 2026/08/15 18:04 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 16110
							output: 21
							thoughts: 403
						

Thoughts:
**My Thought Process on HTB qdisc and Class Configuration**

Right, so when I'm looking at configuring the HTB qdisc, my initial step involves sending `TCA_HTB_INIT` along with a `struct tc_htb_glob`. In this structure, I’m setting up key parameters: `version` to `3` (which corresponds to `TC_HTB_PROTOVER`), `rate2quantum` to `10`, `defcls` to `1`, and I'm keeping `debug` and `direct_pkts` at `0` for now. This is my baseline setup for the global HTB parameters.

Following that, when it comes to setting up an individual HTB class, I'm using `TCA_HTB_PARMS` and populating a `struct tc_htb_opt`. Here, I’m specifying the `rate` and `ceil` for this class, both set to `1` byte per second. I'm also setting `buffer` and `cbuffer` to `1000`, and `quantum` to `1000`. The `prio` is set to `0`. This defines the immediate traffic control characteristics for this class.

However, as I delve deeper, a question arises: does the creation of an HTB class necessitate `TCA_HTB_RTAB` and `TCA_HTB_CTAB` specifically when `linklayer` is set to `TC_LINKLAYER_UNAWARE`? I’m looking at the `htb_change_class` function, and I see a conditional block:
```c
if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
    qdisc_put_rtab(qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB],
                                  NULL));
```
This code snippet explicitly checks for `TC_LINKLAYER_UNAWARE`. This strongly suggests that if the link layer is unaware, these rate tables (`RTAB` and `CTAB`) are indeed required. My next logical step is to investigate the `qdisc_get_rtab` function itself. The presence of `tb[TCA_HTB_RTAB]` being passed as an argument within this conditional block implies that `tb[TCA_HTB_RTAB]` *must* be present, meaning the `TCA_HTB_RTAB` attribute needs to be provided by the caller, when `linklayer` is `TC_LINKLAYER_UNAWARE`. So, my current line of inquiry is focused on understanding the internal workings and expectations of `qdisc_get_rtab` to confirm this dependency.


244/4 2026/08/15 18:04 tool grepper
0m Args:
map[Expression:qdisc_get_rtab]

Results:
map[Output:include/net/pkt_sched.h=105=struct Qdisc *qdisc_lookup_rcu(struct net_device *dev, u32 handle);
include/net/pkt_sched.h:106:struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r,
include/net/pkt_sched.h-107-					struct nlattr *tab,
--
net/sched/act_police.c=40=static int tcf_police_init(struct net *net, struct nlattr *nla,
--
net/sched/act_police.c-101-		err = -ENOMEM;
net/sched/act_police.c:102:		R_tab = qdisc_get_rtab(&parm->rate, tb[TCA_POLICE_RATE], NULL);
net/sched/act_police.c-103-		if (R_tab == NULL)
--
net/sched/act_police.c-106-		if (parm->peakrate.rate) {
net/sched/act_police.c:107:			P_tab = qdisc_get_rtab(&parm->peakrate,
net/sched/act_police.c-108-					       tb[TCA_POLICE_PEAKRATE], NULL);
--
net/sched/sch_api.c=417=static struct qdisc_rate_table *qdisc_rtab_list;
net/sched/sch_api.c-418-
net/sched/sch_api.c:419:struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r,
net/sched/sch_api.c-420-					struct nlattr *tab,
--
net/sched/sch_api.c-453-}
net/sched/sch_api.c:454:EXPORT_SYMBOL(qdisc_get_rtab);
net/sched/sch_api.c-455-
--
net/sched/sch_htb.c=1762=static int htb_change_class(struct Qdisc *sch, u32 classid,
--
net/sched/sch_htb.c-1810-	if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
net/sched/sch_htb.c:1811:		qdisc_put_rtab(qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB],
net/sched/sch_htb.c-1812-					      NULL));
--
net/sched/sch_htb.c-1814-	if (hopt->ceil.linklayer == TC_LINKLAYER_UNAWARE)
net/sched/sch_htb.c:1815:		qdisc_put_rtab(qdisc_get_rtab(&hopt->ceil, tb[TCA_HTB_CTAB],
net/sched/sch_htb.c-1816-					      NULL));
--
net/sched/sch_tbf.c=362=static int tbf_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_tbf.c-387-	if (qopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
net/sched/sch_tbf.c:388:		qdisc_put_rtab(qdisc_get_rtab(&qopt->rate,
net/sched/sch_tbf.c-389-					      tb[TCA_TBF_RTAB],
--
net/sched/sch_tbf.c-392-	if (qopt->peakrate.linklayer == TC_LINKLAYER_UNAWARE)
net/sched/sch_tbf.c:393:			qdisc_put_rtab(qdisc_get_rtab(&qopt->peakrate,
net/sched/sch_tbf.c-394-						      tb[TCA_TBF_PTAB],
]

245/4 2026/08/15 18:05 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 17526
							output: 37
							thoughts: 25
						

Thoughts:
**My Exploration of `qdisc_get_rtab`**

Alright, so I'm diving into the kernel, specifically `net/sched/sch_api.c`, and my current focus is on this function, `qdisc_get_rtab`. I want to get a really good handle on its role and how it operates within the traffic control subsystem. My goal here is to understand precisely what it's doing, how it's interacting with other parts of the system, and what its implications are for traffic scheduling and management. I'm assuming, given my expertise, that this function is likely crucial for some aspect of rate limiting or shaping, and I'm eager to confirm that and understand the nuances. I'm going to meticulously trace its execution path, examine its parameters and return values, and try to connect it to the broader context of queuing discipline (qdisc) operations. My intention is to build a comprehensive, first-person understanding of this piece of code.


246/4 2026/08/15 18:05 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:419 LineCount:40]

Results:
map[Contents: 419:	struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r,
 420:						struct nlattr *tab,
 421:						struct netlink_ext_ack *extack)
 422:	{
 423:		struct qdisc_rate_table *rtab;
 424:	
 425:		if (tab == NULL || r->rate == 0 ||
 426:		    r->cell_log == 0 || r->cell_log >= 32 ||
 427:		    nla_len(tab) != TC_RTAB_SIZE) {
 428:			NL_SET_ERR_MSG(extack, "Invalid rate table parameters for searching");
 429:			return NULL;
 430:		}
 431:	
 432:		for (rtab = qdisc_rtab_list; rtab; rtab = rtab->next) {
 433:			if (!memcmp(&rtab->rate, r, sizeof(struct tc_ratespec)) &&
 434:			    !memcmp(&rtab->data, nla_data(tab), TC_RTAB_SIZE)) {
 435:				rtab->refcnt++;
 436:				return rtab;
 437:			}
 438:		}
 439:	
 440:		rtab = kmalloc_obj(*rtab);
 441:		if (rtab) {
 442:			rtab->rate = *r;
 443:			rtab->refcnt = 1;
 444:			memcpy(rtab->data, nla_data(tab), TC_RTAB_SIZE);
 445:			if (r->linklayer == TC_LINKLAYER_UNAWARE)
 446:				r->linklayer = __detect_linklayer(r, rtab->data);
 447:			rtab->next = qdisc_rtab_list;
 448:			qdisc_rtab_list = rtab;
 449:		} else {
 450:			NL_SET_ERR_MSG(extack, "Failed to allocate new qdisc rate table");
 451:		}
 452:		return rtab;
 453:	}
 454:	EXPORT_SYMBOL(qdisc_get_rtab);
 455:	
 456:	void qdisc_put_rtab(struct qdisc_rate_table *tab)
 457:	{
 458:		struct qdisc_rate_table *rtab, **rtabp;
]

247/4 2026/08/15 18:05 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 18264
							output: 38
							thoughts: 211
						

Thoughts:
**My Thought Process Regarding `qdisc_get_rtab` and Link Layer Awareness**

My initial thought was focused on the `qdisc_get_rtab` function and its dependencies. I recognized that this function critically relies on the presence of the `tab` attribute, specifically `TCA_HTB_RTAB`, and mandates a precise size for it: `TC_RTAB_SIZE`, which is 1024 bytes. This means, under normal circumstances, I would have to ensure that this attribute is correctly populated and sized when calling `qdisc_get_rtab`.

However, a deeper inspection of the surrounding code revealed a crucial conditional. I noticed that `qdisc_get_rtab` is **not** called at all if the `linklayer` field within the `hopt->rate` structure is anything other than `TC_LINKLAYER_UNAWARE`. This is explicitly shown in the `if` statement:

```c
	if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
		qdisc_put_rtab(qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB],
					      NULL));
```

This observation led to a significant insight: if I were to set the `linklayer` to a value like `TC_LINKLAYER_ETHERNET` (which has a value of 1), the code path that requires `qdisc_get_rtab` would be skipped. Consequently, this would imply that the `TCA_HTB_RTAB` attribute, and by extension `TCA_HTB_CTAB`, would not be needed for the operation in this specific scenario.

To confirm this newfound understanding, my next step was to re-examine the `htb_change_class` function to see how this conditional logic plays out in practice and what implications it has for the required attributes.


248/4 2026/08/15 18:05 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1810 LineCount:20]

Results:
map[Contents:1810:		if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
1811:			qdisc_put_rtab(qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB],
1812:						      NULL));
1813:	
1814:		if (hopt->ceil.linklayer == TC_LINKLAYER_UNAWARE)
1815:			qdisc_put_rtab(qdisc_get_rtab(&hopt->ceil, tb[TCA_HTB_CTAB],
1816:						      NULL));
1817:	
1818:		rate64 = nla_get_u64_default(tb[TCA_HTB_RATE64], 0);
1819:		ceil64 = nla_get_u64_default(tb[TCA_HTB_CEIL64], 0);
1820:	
1821:		if (!cl) {		/* new class */
1822:			struct net_device *dev = qdisc_dev(sch);
1823:			struct Qdisc *new_q, *old_q;
1824:			int prio;
1825:			struct {
1826:				struct nlattr		nla;
1827:				struct gnet_estimator	opt;
1828:			} est = {
1829:				.nla = {
]

249/4 2026/08/15 18:05 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 18884
							output: 18
							thoughts: 1615
						

Thoughts:
**My Thought Process on Implementing HTB and SFQ in Netlink**

Ah, I've just had a realization regarding the `TC_LINKLAYER_ETHERNET` setting. If I set this specifically, it means I don't need to bother with providing rate tables. That simplifies things considerably. I'll go ahead and define `TC_LINKLAYER_ETHERNET` as `1` for my purposes.

Now, for `TCA_HTB_PARMS`, this means I can construct the `tc_htb_opt` struct like so:

```c
struct tc_htb_opt opt = {
    .rate = {
        .rate = 1, // Setting this to 1 byte per second
        .linklayer = 1, // Which is TC_LINKLAYER_ETHERNET
    },
    .ceil = {
        .rate = 1, // And similarly for the ceiling
        .linklayer = 1,
    },
    .buffer = 1000,
    .cbuffer = 1000,
    .quantum = 1000,
    .prio = 0,
};
```

With that cleared up, I can now focus on writing the actual functions for adding HTB qdiscs and classes: `add_qdisc_htb` and `add_class_htb`.

Here's how I'm thinking about `add_qdisc_htb`:

```c
int add_qdisc_htb(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    // I'm setting up a request buffer that includes the Netlink message header and the tcmsg structure.
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024]; // A buffer for potential additional attributes
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)), // Initialize message length
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK, // Standard flags for new object creation with acknowledgment
        .n.nlmsg_type = RTM_NEWQDISC, // This is a request to create a new queueing discipline
        .t.tcm_family = AF_UNSPEC, // Unspecified address family
        .t.tcm_ifindex = ifindex, // The interface index
        .t.tcm_parent = parent, // The parent handle (often the root qdisc)
        .t.tcm_handle = handle, // The handle for this qdisc
    };
    // Add the queueing discipline kind, which is "htb"
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    // Now I need to add the actual options for HTB. This starts with nesting under TCA_OPTIONS.
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_glob gopt = {
        .version = 3, // Using version 3 of the HTB structure
        .rate2quantum = 10, // A common setting for rate-to-quantum conversion
        .defcls = 1, // Default class ID
        .debug = 0, // No debugging enabled
        .direct_pkts = 0, // Not directly passing packets
    };
    // Add the global HTB parameters. I need to make sure I'm using the correct attribute for global options, which is TCA_HTB_INIT.
    addattr_l(&req.n, sizeof(req), TCA_HTB_INIT, &gopt, sizeof(gopt));
    // End the nested options attribute.
    addattr_nest_end(&req.n, opts);
    
    // Finally, send the Netlink request.
    return send_nl_req(fd, &req.n);
}
```

And here's the plan for `add_class_htb`:

```c
int add_class_htb(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    // Similar structure for the Netlink request as for the qdisc.
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS, // This is a request to create a new traffic class
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent, // The parent qdisc or class
        .t.tcm_handle = classid, // The handle for this class
    };
    // Specify the kind as "htb" again.
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    // Nest the options under TCA_OPTIONS.
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    // This is where I'll put the specific parameters for this HTB class.
    struct tc_htb_opt hopt = {
        .rate = {
            .rate = 1, // My previously determined rate
            .linklayer = 1, // And link layer type
        },
        .ceil = {
            .rate = 1, // Ceiling rate
            .linklayer = 1,
        },
        .buffer = 1000, // Buffer size
        .cbuffer = 1000, // Committed buffer size
        .quantum = 1000, // Quantum value
        .prio = 0, // Priority
    };
    // Add the HTB class parameters using the correct attribute, which is TCA_HTB_PARMS.
    addattr_l(&req.n, sizeof(req), TCA_HTB_PARMS, &hopt, sizeof(hopt));
    // End the nested options.
    addattr_nest_end(&req.n, opts);
    
    // Send the Netlink request.
    return send_nl_req(fd, &req.n);
}
```

Now, a quick check of the enum values. I recall `TCA_HTB_PARMS` being `1` and `TCA_HTB_INIT` being `2`. This confirms my usage in the functions above.

Then, I started thinking about other queueing disciplines. Let's look at `add_qdisc_sfq`:

```c
int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    // Here, the options for SFQ seem to be directly under TCA_OPTIONS, not nested further.
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    // This is where I got a bit confused. Is TCA_OPTIONS directly holding the struct tc_sfq_qopt for SFQ?
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}
```

This leads me to re-examine the `sfq_init` implementation in `net/sched/sch_sfq.c` to confirm how the SFQ options are actually structured and passed via Netlink. It's crucial to get these attribute mappings exactly right for each qdisc type.


250/4 2026/08/15 18:05 tool grepper
0m Args:
map[Expression:sfq_init]

Results:
map[Output:net/sched/sch_sfq.c=765=static void sfq_destroy(struct Qdisc *sch)
--
net/sched/sch_sfq.c-776-
net/sched/sch_sfq.c:777:static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
net/sched/sch_sfq.c-778-		    struct netlink_ext_ack *extack)
--
net/sched/sch_sfq.c=956=static struct Qdisc_ops sfq_qdisc_ops __read_mostly = {
--
net/sched/sch_sfq.c-962-	.peek		=	qdisc_peek_dequeued,
net/sched/sch_sfq.c:963:	.init		=	sfq_init,
net/sched/sch_sfq.c-964-	.reset		=	sfq_reset,
]

251/4 2026/08/15 18:05 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 20751
							output: 38
							thoughts: 10
						

Thoughts:
**My Thought Process on `sfq_init`**

Alright, so my immediate impulse here is to dive right into the `sfq_init` function. I'm assuming this is the entry point for setting up the Stochastic Fairness Queueing (SFQ) mechanism. My primary objective is to understand precisely *how* SFQ gets initialized. This means I'm looking for the fundamental data structures that are allocated, the initial parameters that are configured, and any other setup routines that are invoked. I want to get a clear picture of the "blank slate" upon which SFQ will operate. Is it just a few counters, or are there more complex structures like hash tables or lists being prepared? What default values are being applied? Understanding the initialization is crucial for grasping the subsequent behavior of the algorithm. I'll be paying close attention to memory allocation and any flags or state variables that are set at this stage.


252/4 2026/08/15 18:05 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:777 LineCount:30]

Results:
map[Contents: 777:	static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
 778:			    struct netlink_ext_ack *extack)
 779:	{
 780:		struct sfq_sched_data *q = qdisc_priv(sch);
 781:		int i;
 782:		int err;
 783:	
 784:		q->sch = sch;
 785:		timer_setup(&q->perturb_timer, sfq_perturbation, TIMER_DEFERRABLE);
 786:	
 787:		err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
 788:		if (err)
 789:			return err;
 790:	
 791:		for (i = 0; i < SFQ_MAX_DEPTH + 1; i++) {
 792:			q->dep[i].next = i + SFQ_MAX_FLOWS;
 793:			q->dep[i].prev = i + SFQ_MAX_FLOWS;
 794:		}
 795:	
 796:		q->limit = SFQ_MAX_DEPTH;
 797:		q->maxdepth = SFQ_MAX_DEPTH;
 798:		q->cur_depth = 0;
 799:		q->tail = NULL;
 800:		q->divisor = SFQ_DEFAULT_HASH_DIVISOR;
 801:		q->maxflows = SFQ_DEFAULT_FLOWS;
 802:		q->quantum = psched_mtu(qdisc_dev(sch));
 803:		q->perturb_period = 0;
 804:		get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 805:	
 806:		if (opt) {
]

253/4 2026/08/15 18:05 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 21296
							output: 38
							thoughts: 12
						

Thoughts:
**My Thought Process for Continuing `sfq_init` Analysis**

Alright, so my immediate inclination after that last chunk of code is to dive deeper into `sfq_init`. I want to understand precisely how the system is being set up, the initial conditions being established. It's not enough to just see that it's being called; I need to dissect its internal workings. This means tracing the execution flow, identifying the key data structures it manipulates, and grasping the fundamental configurations it enforces. I'm looking for the genesis of the queueing discipline, the initial state of its parameters, and any dependencies it might be setting up. Essentially, I'm trying to build a comprehensive mental model of the `sfq_init` function's role in bringing the Stochastic Fairness Queueing mechanism into existence.


254/4 2026/08/15 18:05 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:806 LineCount:20]

Results:
map[Contents: 806:		if (opt) {
 807:			int err = sfq_change(sch, opt, extack);
 808:			if (err)
 809:				return err;
 810:		}
 811:	
 812:		q->ht = sfq_alloc(sizeof(q->ht[0]) * q->divisor);
 813:		q->slots = sfq_alloc(sizeof(q->slots[0]) * q->maxflows);
 814:		if (!q->ht || !q->slots) {
 815:			/* Note: sfq_destroy() will be called by our caller */
 816:			return -ENOMEM;
 817:		}
 818:	
 819:		for (i = 0; i < q->divisor; i++)
 820:			q->ht[i] = SFQ_EMPTY_SLOT;
 821:	
 822:		for (i = 0; i < q->maxflows; i++) {
 823:			slot_queue_init(&q->slots[i]);
 824:			sfq_link(q, i);
 825:		}
]

255/4 2026/08/15 18:05 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 21659
							output: 18
							thoughts: 10
						

Thoughts:
**My Thought Process on Examining `sfq_change`**

Alright, so the first thing that jumps out at me, as I delve into this `sfq_change` code, is the underlying objective: I need to understand how it handles modifications or updates to the Stochastic Fair Queueing (SFQ) algorithm's parameters or its current state. Given my expertise, I'm not just looking for a superficial overview; I'm trying to grasp the *mechanics* of these changes.

I'm mentally dissecting the function's signature and its immediate purpose. What inputs is it expecting? Is it a configuration change, a runtime adjustment, or perhaps an informational query disguised as a "change" operation? My immediate hypothesis is that it's likely designed to allow for dynamic tuning or re-initialization of SFQ, which is a crucial aspect for adaptive network traffic management.

As I proceed, I'll be scrutinizing the internal logic. I'll be asking myself:

*   **What specific SFQ parameters can be altered?** Is it things like the quantum size, the number of queues, the hashing function, or perhaps more nuanced parameters like backoff mechanisms or queue limits?
*   **How are these changes validated?** Is there input sanitization? Are there checks for valid ranges or logical consistency? I expect robust error handling here, preventing malformed or detrimental changes.
*   **What is the scope of the change?** Does it affect a single flow, a class of flows, or the entire SFQ instance? This will dictate the complexity and potential impact of the operation.
*   **What is the *mechanism* of change?** Is it a direct manipulation of internal data structures, or does it involve a more involved process like re-hashing, re-ordering, or even a temporary suspension of packet processing to ensure atomicity? My intuition leans towards mechanisms that minimize disruption, but the context will dictate this.
*   **What are the potential side effects?** Even with seemingly small changes, there could be ripple effects on fairness, latency, or throughput. I'll be looking for any documentation or comments that allude to these.
*   **How does this interact with other SFQ components?** If SFQ is part of a larger network stack, I need to consider how `sfq_change` might trigger updates or notifications to other modules.

Essentially, I'm trying to build a mental model of `sfq_change` as a control plane interface for SFQ. I want to understand not just *what* it does, but *how* it achieves it, and what the implications of those actions are within the broader context of network traffic shaping. My aim is to confirm or refine my initial understanding of SFQ's dynamic configurability.


256/4 2026/08/15 18:05 tool grepper
0m Args:
map[Expression:sfq_change]

Results:
map[Output:net/sched/sch_sfq.c=604=static void sfq_perturbation(struct timer_list *t)
--
net/sched/sch_sfq.c-621-	/* q->perturb_period can change under us from
net/sched/sch_sfq.c:622:	 * sfq_change() and sfq_destroy().
net/sched/sch_sfq.c-623-	 */
--
net/sched/sch_sfq.c-629-
net/sched/sch_sfq.c:630:static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
net/sched/sch_sfq.c-631-		      struct netlink_ext_ack *extack)
--
net/sched/sch_sfq.c=777=static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_sfq.c-806-	if (opt) {
net/sched/sch_sfq.c:807:		int err = sfq_change(sch, opt, extack);
net/sched/sch_sfq.c-808-		if (err)
]

257/4 2026/08/15 18:05 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 21991
							output: 38
							thoughts: 10
						

Thoughts:
**My Thought Process on Examining `sfq_change`**

Alright, so the first thing that jumps out at me, as I delve into this `sfq_change` code, is the underlying objective: I need to understand how it handles modifications or updates to the Stochastic Fair Queueing (SFQ) algorithm's parameters or its current state. Given my expertise, I'm not just looking for a superficial overview; I'm trying to grasp the *mechanics* of these changes.

I'm mentally dissecting the function's signature and its immediate purpose. What inputs is it expecting? Is it a configuration change, a runtime adjustment, or perhaps an informational query disguised as a "change" operation? My immediate hypothesis is that it's likely designed to allow for dynamic tuning or re-initialization of SFQ, which is a crucial aspect for adaptive network traffic management.

As I proceed, I'll be scrutinizing the internal logic. I'll be asking myself:

*   **What specific SFQ parameters can be altered?** Is it things like the quantum size, the number of queues, the hashing function, or perhaps more nuanced parameters like backoff mechanisms or queue limits?
*   **How are these changes validated?** Is there input sanitization? Are there checks for valid ranges or logical consistency? I expect robust error handling here, preventing malformed or detrimental changes.
*   **What is the scope of the change?** Does it affect a single flow, a class of flows, or the entire SFQ instance? This will dictate the complexity and potential impact of the operation.
*   **What is the *mechanism* of change?** Is it a direct manipulation of internal data structures, or does it involve a more involved process like re-hashing, re-ordering, or even a temporary suspension of packet processing to ensure atomicity? My intuition leans towards mechanisms that minimize disruption, but the context will dictate this.
*   **What are the potential side effects?** Even with seemingly small changes, there could be ripple effects on fairness, latency, or throughput. I'll be looking for any documentation or comments that allude to these.
*   **How does this interact with other SFQ components?** If SFQ is part of a larger network stack, I need to consider how `sfq_change` might trigger updates or notifications to other modules.

Essentially, I'm trying to build a mental model of `sfq_change` as a control plane interface for SFQ. I want to understand not just *what* it does, but *how* it achieves it, and what the implications of those actions are within the broader context of network traffic shaping. My aim is to confirm or refine my initial understanding of SFQ's dynamic configurability.


258/4 2026/08/15 18:05 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:630 LineCount:40]

Results:
map[Contents: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
]

259/4 2026/08/15 18:05 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 22675
							output: 23
							thoughts: 139
						

Thoughts:
**My Thought Process Regarding SFQ Options**

Ah, it seems my initial suspicion was correct: the `TCA_OPTIONS` for SFQ is indeed represented by `struct tc_sfq_qopt`. I just confirmed this by examining the structure definition in `include/uapi/linux/pkt_sched.h`. This structure clearly lays out the key parameters that control the behavior of the Stochastic Fairness Queueing (SFQ) discipline:

*   `quantum`: This defines the amount of data, measured in bytes, that each flow is entitled to per round. It's a fundamental parameter for controlling bandwidth allocation fairness.
*   `perturb_period`: This relates to the hash perturbation mechanism. A non-zero value means the hash function will periodically change, which helps to prevent persistent collisions and ensure better distribution of flows over time.
*   `limit`: This is a straightforward limit on the maximum number of packets allowed in the queue for any given flow. It's a safeguard against excessive buffering for individual flows.
*   `divisor`: This is the divisor used in the hashing function. It directly impacts the number of hash buckets, and therefore, the granularity of flow separation.
*   `flows`: This specifies the maximum number of distinct flows that SFQ is configured to manage. Once this limit is reached, new flows might be dropped or handled differently, depending on the exact implementation details.

So, now I have a clear understanding of how SFQ's configuration is structured and the specific parameters I'll need to work with when manipulating or analyzing SFQ queueing configurations. This is exactly what I needed to move forward.


260/4 2026/08/15 18:05 tool grepper
0m Args:
map[Expression:struct tc_sfq_qopt \{]

Results:
map[Output:include/uapi/linux/pkt_sched.h=191=enum {
--
include/uapi/linux/pkt_sched.h-212-
include/uapi/linux/pkt_sched.h:213:struct tc_sfq_qopt {
include/uapi/linux/pkt_sched.h-214-	unsigned	quantum;	/* Bytes per round allocated to flow */
--
tools/include/uapi/linux/pkt_sched.h=190=enum {
--
tools/include/uapi/linux/pkt_sched.h-211-
tools/include/uapi/linux/pkt_sched.h:212:struct tc_sfq_qopt {
tools/include/uapi/linux/pkt_sched.h-213-	unsigned	quantum;	/* Bytes per round allocated to flow */
]

261/4 2026/08/15 18:05 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 23045
							output: 40
							thoughts: 16
						

Thoughts:
**My Thought Process Regarding `struct tc_sfq_qopt`**

Alright, my first instinct is to dive straight into the nuts and bolts, and that means getting a clear picture of `struct tc_sfq_qopt`. I need to understand precisely what fields are available within this structure, as they will dictate how I can configure and interact with SFQ (Stochastic Fairness Queueing) queueing disciplines. It's not enough to just know it *exists*; I need to know its composition – the data types, the names of the members, and what each one conceptually represents in terms of SFQ's operational parameters. This is the foundational step for any in-depth manipulation or analysis of SFQ's behavior within the traffic control subsystem.


262/4 2026/08/15 18:05 tool read-file
0m Args:
map[File:include/uapi/linux/pkt_sched.h FirstLine:213 LineCount:10]

Results:
map[Contents: 213:	struct tc_sfq_qopt {
 214:		unsigned	quantum;	/* Bytes per round allocated to flow */
 215:		int		perturb_period;	/* Period of hash perturbation */
 216:		__u32		limit;		/* Maximal packets in queue */
 217:		unsigned	divisor;	/* Hash divisor  */
 218:		unsigned	flows;		/* Maximal number of flows  */
 219:	};
 220:	
 221:	struct tc_sfqred_stats {
 222:		__u32           prob_drop;      /* Early drops, below max threshold */
]

263/4 2026/08/15 18:05 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 23267
							output: 17
							thoughts: 4427
						

Thoughts:
**My Thought Process on Reproducing the SFQ Timer Race Condition**

Alright, let's break down how I'm approaching this. The core of the problem, as I understand it, is a potential race condition between the SFQ qdisc's periodic perturbation timer and the destruction of its parent HTB qdisc. Specifically, if the SFQ timer fires *during* the `htb_destroy` operation, it could lead to a crash. My goal is to reliably trigger this.

First, I've confirmed that the `add_qdisc_sfq` function is indeed the correct one to use for adding an SFQ qdisc. That's a foundational piece.

Now, for the reproducer itself, the plan is clear:

1.  **Create a Dummy Interface:** I need a stable, isolated environment to manipulate. A dummy interface is perfect for this.
2.  **Attach HTB Root:** The SFQ qdiscs will be children of an HTB qdisc, so I need to set up the HTB root first.
3.  **Add Many Classes:** The feedback mentioned 2000-5000 classes. I've settled on using 3000 classes. This large number is crucial for maximizing the probability of a timer firing during destruction.
4.  **Add SFQ to Each Class:** Each of these 3000 HTB classes will host an SFQ qdisc. This is where the timers originate.
5.  **Send Packets:** This is a critical realization. The SFQ perturbation timer *only* rehashes if there's data in the queue (`q->tail != NULL`). If I just add the SFQ qdiscs without sending any traffic, the timer might not behave as expected or might not trigger the rehash logic that could lead to a crash. So, I need to send at least one packet to each class to ensure SFQ is active and its timers are meaningful.
6.  **Sleep:** This is where the "race condition" timing comes into play. The SFQ qdisc's perturbation timer is set to 1 second. To maximize the chance of a timer firing *while* `htb_destroy` is executing, I need to time this sleep precisely. The feedback suggests sleeping for *slightly less* than 1 second. My thought is to calculate the time it takes to add all SFQ qdiscs and then subtract half of that time from the 1-second perturbation period. This should align the start of the destruction process with the peak of timer firing activity.
7.  **Delete Root:** Finally, I'll delete the root HTB qdisc, triggering the destruction sequence that I hope will expose the race condition.

I've been looking at the provided C code, and it seems to cover the necessary netlink message construction for `RTM_NEWLINK` (to create the dummy interface), `RTM_NEWQDISC` (for HTB root and SFQ), and `RTM_NEWTCLASS` (for HTB classes). I've also noted the potential issue with `TCA_HTB_INIT` and `TCA_HTB_PARMS` definitions, but confirmed that the included `linux/pkt_sched.h` should handle that.

The key insight about `sfq_perturbation` re-arming its own timer is important. It confirms that the timers are indeed periodic and will continue to fire even if adding them takes a while. The challenge then becomes ensuring that *during* the `htb_destroy` phase, which I assume will take a non-trivial amount of time due to the 3000 classes, at least one of these 3000 timers will fire. The probability calculation `3000 * (time_of_destroy / 1s)` seems to support this intuition – with 3000 timers, it's highly probable that one will hit during destruction.

The decision to send packets *after* adding SFQ qdiscs and *before* the sleep is logical. This ensures the SFQ state is "ready" with active queues before I initiate the timed destruction.

So, the refined plan involves creating the dummy interface, setting up the HTB root with its global options, adding all 3000 HTB classes with their specific parameters, then adding all 3000 SFQ qdiscs, sending packets to each class to activate the SFQ timers, then calculating and performing the precise sleep, and finally deleting the root qdisc. This sequence feels robust for triggering the intended race.


264/4 2026/08/15 18:06 tool grepper
0m Args:
map[Expression:htb_classify]

Results:
map[Output:net/sched/sch_htb.c=198=static unsigned long htb_search(struct Qdisc *sch, u32 handle)
--
net/sched/sch_htb.c-205-/**
net/sched/sch_htb.c:206: * htb_classify - classify a packet into class
net/sched/sch_htb.c-207- * @skb: the socket buffer
--
net/sched/sch_htb.c-219- */
net/sched/sch_htb.c:220:static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
net/sched/sch_htb.c-221-				      int *qerr)
--
net/sched/sch_htb.c=620=static int htb_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_htb.c-625-	struct htb_sched *q = qdisc_priv(sch);
net/sched/sch_htb.c:626:	struct htb_class *cl = htb_classify(skb, sch, &ret);
net/sched/sch_htb.c-627-
]

265/4 2026/08/15 18:06 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 28015
							output: 37
							thoughts: 9
						

Thoughts:
**My Thought Process on Examining `htb_classify`**

Alright, so the first thing on my agenda is to dive into `htb_classify`. I need to get a solid understanding of what this function or module is doing, what its purpose is, and how it operates. My immediate thought is to parse through its code, looking for the core logic. I'll be paying close attention to:

*   **Input Parameters:** What data is it expecting to receive? Are there specific formats or types that are crucial for its operation? Understanding the inputs will tell me a lot about what problem it's designed to solve.
*   **Internal Logic/Algorithms:** This is the heart of it. I'll be dissecting the actual steps it takes. Is it performing some kind of statistical analysis, machine learning inference, rule-based decision-making, or something else entirely? I'll be looking for patterns, conditional statements, and any external libraries or functions it calls that might give clues about its methodology.
*   **Output:** What is it producing? Is it a classification label, a probability score, a set of confidence intervals, or some other form of output? The output will confirm what it's actually achieving.
*   **Dependencies:** Does it rely on other modules or external services? This is important for understanding its context within a larger system and for any potential debugging or deployment considerations.
*   **Error Handling:** How does it behave when things go wrong? Does it raise specific exceptions, return default values, or log errors? This is a key indicator of robustness.
*   **Configuration:** Are there any configuration files or settings that influence its behavior? This could be a significant factor in how it's applied or customized.

Ultimately, my goal in reading `htb_classify` is to build a comprehensive mental model of its functionality, its strengths, and its limitations, so I can then assess its relevance and potential impact.


266/4 2026/08/15 18:06 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:220 LineCount:30]

Results:
map[Contents: 220:	static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
 221:					      int *qerr)
 222:	{
 223:		struct htb_sched *q = qdisc_priv(sch);
 224:		struct htb_class *cl;
 225:		struct tcf_result res;
 226:		struct tcf_proto *tcf;
 227:		int result;
 228:	
 229:		/* allow to select class by setting skb->priority to valid classid;
 230:		 * note that nfmark can be used too by attaching filter fw with no
 231:		 * rules in it
 232:		 */
 233:		if (skb->priority == sch->handle)
 234:			return HTB_DIRECT;	/* X:0 (direct flow) selected */
 235:		cl = htb_find(skb->priority, sch);
 236:		if (cl) {
 237:			if (cl->level == 0)
 238:				return cl;
 239:			/* Start with inner filter chain if a non-leaf class is selected */
 240:			tcf = rcu_dereference_bh(cl->filter_list);
 241:		} else {
 242:			tcf = rcu_dereference_bh(q->filter_list);
 243:		}
 244:	
 245:		*qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
 246:		while (tcf && (result = tcf_classify(skb, NULL, tcf, &res, false)) >= 0) {
 247:	#ifdef CONFIG_NET_CLS_ACT
 248:			switch (result) {
 249:			case TC_ACT_QUEUED:
]

267/4 2026/08/15 18:06 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 28563
							output: 38
							thoughts: 1597
						

Thoughts:
**My Thought Process on Kernel Traffic Control Configuration and Reproducer Refinement**

Ah, yes, the `htb_classify` mechanism. I've confirmed it meticulously checks the `skb->priority` field. If this priority value matches a `classid` for a leaf class (meaning `cl->level == 0`), then that class is indeed returned. This is precisely why setting `SO_PRIORITY` to `TC_H_MAKE(1<<16, c)` is proving to be the correct approach for my objective.

Now, let's really focus on refining this reproducer logic. I've laid out the code structure:

The core idea is to create a series of dummy interfaces, each configured with a root HTB qdisc. Then, for each interface, I'm adding a substantial number of child classes – `NUM_CLASSES` (which I've set to 2000) – under the root. After that, I attach an SFQ qdisc to each of these classes.

The critical part comes when I start sending packets. I iterate through each class, set the `SO_PRIORITY` socket option to match the `classid` I'm targeting, and then send a raw packet using `sendto` on an `AF_PACKET` socket. The goal here is to ensure that the packet's priority directs it to the intended SFQ qdisc, thus testing the classifier's behavior under load.

I've also included a sleep mechanism. The idea is to let the system settle for roughly a second between iterations, or at least to align with some implied timing, while adding a touch of randomness to the sleep duration to introduce variability. Finally, before the next iteration, I clean up by deleting the root qdisc.

However, I've hit a snag. When I re-examined the `add_qdisc_sfq` function call, I noticed it's using `TC_H_MAKE(c + 1, 0)` for the handle. My initial thought was that the major number should be `c + 1`, which, when shifted, becomes `(c + 1) << 16`. So, the correct call should look like this:

```c
add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE((c + 1) << 16, 0), TC_H_MAKE(1<<16, c));
```

Then, I paused again. `c` can go up to 2000. The `(c + 1) << 16` expression results in a major number that exceeds the 16-bit limit for the major part of the TC handle (which is 65535). This means that `TC_H_MAKE((c + 1) << 16, 0)` will likely lead to incorrect handle construction. This needs careful re-evaluation.

Next, I took a closer look at the `add_class_htb` configuration. I'm setting the `rate` and `ceil` to 1 byte per second, with a `buffer`, `cbuffer`, and `quantum` of 1000. The question is, is `rate = 1` truly sufficient? A rate of 1 byte per second is exceptionally low. If I'm sending a 64-byte packet, it will take 64 seconds just to dequeue it. This effectively guarantees that the packet will remain in the queue, which is likely what I want for testing queueing behavior, but it's worth confirming this extreme low rate is precisely the intended behavior.

Then there's the `add_qdisc_htb` call, which sets `defcls = 1`. This means that any packets that aren't explicitly classified will be directed to class 1. My intention is to classify *all* packets using `SO_PRIORITY`, so this default class shouldn't be actively used for my test packets. Still, I need to be absolutely sure this doesn't interfere with my explicit classification.

The most critical point right now is ensuring that the `add_class_htb` and `add_qdisc_htb` calls are actually succeeding. I need to implement proper error checking for the `send_nl_req` function. If a Netlink request fails, it's crucial to know why.

```c
int send_nl_req(int fd, struct nlmsghdr *n) {
    // ... (existing code)
    if (ret_n->nlmsg_type == NLMSG_ERROR) {
        struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
        if (err->error == 0) return 0; // Success
        // printf("NLMSG_ERROR: %d\n", err->error); // Debugging line
        return err->error; // Return the actual error code
    }
    return 0; // Assume success if not NLMSG_ERROR (might need refinement)
}
```

If `add_qdisc_htb` fails, it could be an issue with the `TCA_HTB_INIT` attribute itself, or how it's being constructed. I need to go back and re-examine the `htb_init` logic and ensure it aligns with what the kernel expects for HTB initialization. This is where the true debugging will likely yield results.


268/4 2026/08/15 18:06 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1073 LineCount:20]

Results:
map[Contents:1073:	
1074:		err = nla_parse_nested_deprecated(tb, TCA_HTB_MAX, opt, htb_policy,
1075:						  NULL);
1076:		if (err < 0)
1077:			return err;
1078:	
1079:		if (!tb[TCA_HTB_INIT])
1080:			return -EINVAL;
1081:	
1082:		gopt = nla_data(tb[TCA_HTB_INIT]);
1083:		if (gopt->version != HTB_VER >> 16)
1084:			return -EINVAL;
1085:	
1086:		offload = nla_get_flag(tb[TCA_HTB_OFFLOAD]);
1087:	
1088:		if (offload) {
1089:			if (sch->parent != TC_H_ROOT) {
1090:				NL_SET_ERR_MSG(extack, "HTB must be the root qdisc to use offload");
1091:				return -EOPNOTSUPP;
1092:			}
]

269/4 2026/08/15 18:06 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 30505
							output: 20
							thoughts: 9
						

Thoughts:
**My Thought Process on Discovering `HTB_VER`**

As I encountered this system, one of the initial things that immediately drew my attention was the presence of what appears to be a version identifier, `HTB_VER`. My first, most fundamental question upon seeing this is: what exactly *is* `HTB_VER`?

My mind immediately goes to the typical use cases for such a variable. Is this a specific version of a library, a framework, a configuration file, or perhaps a distinct build of the application itself? I'm considering whether `HTB` is an acronym for a project, a company, or a specific component within this architecture.

I'm hypothesizing that `HTB_VER` likely plays a crucial role in managing dependencies, ensuring compatibility, or perhaps even in debugging and version control. If it denotes a specific build, then understanding its value will be critical for tracing issues back to known stable or unstable releases. If it's a library version, it signals potential compatibility concerns if different parts of the system are expecting different versions of that library.

My immediate next step is to look for where `HTB_VER` is defined or referenced. Is it an environment variable? Is it hardcoded in a configuration file? Is it part of a build script or a manifest? The context in which I find it will be highly informative. For instance, if I see it being used in a conditional statement during initialization, it strongly suggests it’s dictating some aspect of the system's behavior based on its version.

Furthermore, I’m thinking about the *implications* of this versioning. Does `HTB_VER` imply a semantic versioning scheme (major.minor.patch)? Or is it a simpler build number? Understanding this will inform how I interpret changes in its value. Is a change from `1.2.3` to `1.2.4` a minor bug fix, or could it introduce breaking changes?

My overall goal in understanding `HTB_VER` is to gain a deeper insight into the system's architecture, its dependencies, and its operational characteristics. This single variable, though seemingly small, could be a key to unlocking a significant amount of information about how this system is structured and how it evolves.


270/4 2026/08/15 18:06 tool grepper
0m Args:
map[Expression:#define HTB_VER]

Results:
map[Output:net/sched/sch_htb.c=54=static int htb_hysteresis __read_mostly = 0; /* whether to use mode hysteresis for speedup */
net/sched/sch_htb.c:55:#define HTB_VER 0x30011		/* major must be matched with number supplied by TC as version */
net/sched/sch_htb.c-56-
]

271/4 2026/08/15 18:06 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 30628
							output: 38
							thoughts: 55
						

Thoughts:
**My Thought Process**

Okay, so my initial check on `HTB_VER >> 16` confirms my understanding. When I perform that bit shift on `0x30011`, I'm left with `3`. This directly translates to the assignment `gopt->version = 3`, which aligns perfectly with what I'd expect. That piece is solid.

Now, the next logical step for me is to delve into `htb_change_class`. I need to scrutinize its functionality to ensure it's operating as intended and that it doesn't introduce any unforeseen issues or deviate from the established protocol. This is where I'll be looking for any potential edge cases or subtle behaviors that could impact the overall system.


272/4 2026/08/15 18:07 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1781 LineCount:20]

Results:
map[Contents:1781:	
1782:		err = nla_parse_nested_deprecated(tb, TCA_HTB_MAX, opt, htb_policy,
1783:						  extack);
1784:		if (err < 0)
1785:			goto failure;
1786:	
1787:		err = -EINVAL;
1788:		if (tb[TCA_HTB_PARMS] == NULL)
1789:			goto failure;
1790:	
1791:		parent = parentid == TC_H_ROOT ? NULL : htb_find(parentid, sch);
1792:	
1793:		hopt = nla_data(tb[TCA_HTB_PARMS]);
1794:		if (!hopt->rate.rate || !hopt->ceil.rate)
1795:			goto failure;
1796:	
1797:		if (q->offload) {
1798:			/* Options not supported by the offload. */
1799:			if (hopt->rate.overhead || hopt->ceil.overhead) {
1800:				NL_SET_ERR_MSG(extack, "HTB offload doesn't support the overhead parameter");
]

273/4 2026/08/15 18:07 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 31045
							output: 38
							thoughts: 327
						

Thoughts:
**My Thought Process Regarding HTB Rate Table Validation**

Okay, so initially, I'm looking at the HTB (Hierarchical Token Bucket) qdisc and its rate parameters. The requirements are clear: `hopt->rate.rate` and `hopt->ceil.rate` cannot be zero. I’ve set them to 1, which I’m comfortable with; it satisfies the immediate requirement.

Then, my attention is drawn to `hopt->rate.cell_log` and `hopt->ceil.cell_log`. I recall seeing some validation logic related to these in the `qdisc_get_rtab` function. Specifically, the conditions include `r->rate == 0 || r->cell_log == 0 || r->cell_log >= 32`. This is a crucial check.

However, I then remember that we're bypassing the standard `qdisc_get_rtab` call by setting `linklayer = TC_LINKLAYER_ETHERNET`, which has a value of 1. My immediate thought is, "Does setting `linklayer = 1` completely circumvent the `qdisc_get_rtab` call, and thus bypass these vital `cell_log` validations?"

I double-check the source code, specifically the conditional block that *does* call `qdisc_get_rtab`:

```c
if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
    qdisc_put_rtab(qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB],
                                  NULL));
```

Here, `TC_LINKLAYER_UNAWARE` is defined as 0. This confirms my suspicion: if `hopt->rate.linklayer` is *not* 0 (i.e., if it's 1 or anything else other than UNAWARE), then `qdisc_get_rtab` is *not* called within *this specific conditional block*.

So, my current understanding is that by setting `linklayer = 1`, I'm indeed avoiding the `qdisc_get_rtab` validation for `cell_log`. But this leads me to a more pressing concern: is there *any other place* where `qdisc_get_rtab` might be called, or where these `cell_log` values are validated? I need to re-examine `htb_change_class` to be absolutely sure that no other code path could introduce these validations or rely on them. It's not enough to just avoid one check; I need to be certain of the entire logic flow.


274/4 2026/08/15 18:07 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1800 LineCount:20]

Results:
map[Contents:1800:				NL_SET_ERR_MSG(extack, "HTB offload doesn't support the overhead parameter");
1801:				goto failure;
1802:			}
1803:			if (hopt->rate.mpu || hopt->ceil.mpu) {
1804:				NL_SET_ERR_MSG(extack, "HTB offload doesn't support the mpu parameter");
1805:				goto failure;
1806:			}
1807:		}
1808:	
1809:		/* Keeping backward compatible with rate_table based iproute2 tc */
1810:		if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
1811:			qdisc_put_rtab(qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB],
1812:						      NULL));
1813:	
1814:		if (hopt->ceil.linklayer == TC_LINKLAYER_UNAWARE)
1815:			qdisc_put_rtab(qdisc_get_rtab(&hopt->ceil, tb[TCA_HTB_CTAB],
1816:						      NULL));
1817:	
1818:		rate64 = nla_get_u64_default(tb[TCA_HTB_RATE64], 0);
1819:		ceil64 = nla_get_u64_default(tb[TCA_HTB_CEIL64], 0);
]

275/4 2026/08/15 18:07 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 31805
							output: 22
							thoughts: 70
						

Thoughts:
**My Thought Process**

I'm observing a specific code path concerning network traffic shaping and rate limiting, particularly within the context of the `tc` subsystem. My initial hypothesis is that the `qdisc_get_rtab` function is *not* being invoked under a particular condition: when the `linklayer` parameter is not equal to `TC_LINKLAYER_UNAWARE`.

This immediately prompts a follow-up question in my mind: if `qdisc_get_rtab` isn't called when the link layer is *aware* (i.e., not `UNAWARE`), what mechanism is then employed to determine the rate table? I'm contemplating whether the system inherently calculates this rate table internally when it's dealing with link layers that have specific characteristics.

To resolve this, my next step is to delve into the `psched_ratecfg_precompute` function. I suspect that this is where the internal calculation or retrieval of the rate table for aware link layers takes place, effectively bypassing the explicit call to `qdisc_get_rtab` in the scenario I've identified. I need to examine its implementation to confirm this.


276/4 2026/08/15 18:07 tool grepper
0m Args:
map[Expression:psched_ratecfg_precompute]

Results:
map[Output:include/net/sch_generic.h=1443=static inline u64 psched_l2t_ns(const struct psched_ratecfg *r,
--
include/net/sch_generic.h-1456-
include/net/sch_generic.h:1457:void psched_ratecfg_precompute(struct psched_ratecfg *r,
include/net/sch_generic.h-1458-			       const struct tc_ratespec *conf,
--
net/sched/act_police.c=40=static int tcf_police_init(struct net *net, struct nlattr *nla,
--
net/sched/act_police.c-170-		rate64 = nla_get_u64_default(tb[TCA_POLICE_RATE64], 0);
net/sched/act_police.c:171:		psched_ratecfg_precompute(&new->rate, &R_tab->rate, rate64);
net/sched/act_police.c-172-		qdisc_put_rtab(R_tab);
--
net/sched/act_police.c-178-		prate64 = nla_get_u64_default(tb[TCA_POLICE_PEAKRATE64], 0);
net/sched/act_police.c:179:		psched_ratecfg_precompute(&new->peak, &P_tab->rate, prate64);
net/sched/act_police.c-180-		qdisc_put_rtab(P_tab);
--
net/sched/sch_generic.c=1510=void dev_shutdown(struct net_device *dev)
--
net/sched/sch_generic.c-1521-/**
net/sched/sch_generic.c:1522: * psched_ratecfg_precompute__() - Pre-compute values for reciprocal division
net/sched/sch_generic.c-1523- * @rate:   Rate to compute reciprocal division values of
--
net/sched/sch_generic.c-1543- */
net/sched/sch_generic.c:1544:static void psched_ratecfg_precompute__(u64 rate, u32 *mult, u8 *shift)
net/sched/sch_generic.c-1545-{
--
net/sched/sch_generic.c-1562-
net/sched/sch_generic.c:1563:void psched_ratecfg_precompute(struct psched_ratecfg *r,
net/sched/sch_generic.c-1564-			       const struct tc_ratespec *conf,
--
net/sched/sch_generic.c-1571-	r->linklayer = (conf->linklayer & TC_LINKLAYER_MASK);
net/sched/sch_generic.c:1572:	psched_ratecfg_precompute__(r->rate_bytes_ps, &r->mult, &r->shift);
net/sched/sch_generic.c-1573-}
net/sched/sch_generic.c:1574:EXPORT_SYMBOL(psched_ratecfg_precompute);
net/sched/sch_generic.c-1575-
net/sched/sch_generic.c=1576=void psched_ppscfg_precompute(struct psched_pktrate *r, u64 pktrate64)
--
net/sched/sch_generic.c-1578-	r->rate_pkts_ps = pktrate64;
net/sched/sch_generic.c:1579:	psched_ratecfg_precompute__(r->rate_pkts_ps, &r->mult, &r->shift);
net/sched/sch_generic.c-1580-}
--
net/sched/sch_htb.c=1762=static int htb_change_class(struct Qdisc *sch, u32 classid,
--
net/sched/sch_htb.c-2023-
net/sched/sch_htb.c:2024:	psched_ratecfg_precompute(&cl->rate, &hopt->rate, rate64);
net/sched/sch_htb.c:2025:	psched_ratecfg_precompute(&cl->ceil, &hopt->ceil, ceil64);
net/sched/sch_htb.c-2026-
--
net/sched/sch_tbf.c=362=static int tbf_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_tbf.c-401-		rate64 = nla_get_u64(tb[TCA_TBF_RATE64]);
net/sched/sch_tbf.c:402:	psched_ratecfg_precompute(&rate, &qopt->rate, rate64);
net/sched/sch_tbf.c-403-
--
net/sched/sch_tbf.c-413-			prate64 = nla_get_u64(tb[TCA_TBF_PRATE64]);
net/sched/sch_tbf.c:414:		psched_ratecfg_precompute(&peak, &qopt->peakrate, prate64);
net/sched/sch_tbf.c-415-		if (peak.rate_bytes_ps <= rate.rate_bytes_ps) {
]

277/4 2026/08/15 18:07 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 33252
							output: 38
							thoughts: 1797
						

Thoughts:
**My Thought Process Regarding HTB and SFQ Interaction**

Okay, let's break down my thought process here. It seems I'm meticulously dissecting how the `psched_ratecfg_precompute` function handles rate configuration, particularly in relation to `linklayer` settings, and then I'm applying this understanding to the `add_class_htb` and `add_qdisc_sfq` calls within the provided reproducer code.

Initially, I confirmed that `psched_ratecfg_precompute` *doesn't* directly use `qdisc_get_rtab`. It relies solely on `conf->rate` or `rate64`. This is a key observation, as it implies that setting `linklayer = 1` (which signifies `TC_LINKLAYER_UNAWARE`) should be perfectly acceptable and bypasses the need for `TCA_HTB_RTAB` and `TCA_HTB_CTAB` attributes altogether. This simplifies things significantly.

Then, my attention was drawn to the `qdisc_put_rtab` call within `htb_change_class`. I saw that it calls `qdisc_get_rtab` and then immediately `qdisc_put_rtab`. My interpretation here is that this is purely for validation – it checks if the provided rate table is valid and then promptly discards the reference. This makes sense because, as I understood it, the `htb` qdisc itself doesn't store the `rtab`; it precomputes the rate using `psched_ratecfg_precompute`. Therefore, if `linklayer == 1`, this validation step is correctly skipped.

Next, I dug into `add_class_htb` to see if `TCA_HTB_RATE64` and `TCA_HTB_CEIL64` are essential. I noted that if they are not provided, they default to `0`. Looking at `psched_ratecfg_precompute`, it clearly states that if `rate64` is `0`, it falls back to `conf->rate`. Since the reproducer code appears to be setting `conf->rate` to `1` (though I'm not explicitly seeing *that* in the snippet, I'm inferring it from the context of the problem it's trying to solve), this means `r->rate_bytes_ps` will indeed become `1`. This is precisely the behavior I'm looking for – a minimal, predictable rate.

My review of the reproducer logic then led me to question the parent handle used in `add_class_htb`. I observed that `TC_H_MAKE(1<<16, 0)` is used, which corresponds to the root qdisc handle (`1:0`). This raised a question: is it standard practice to attach HTB classes directly to the root qdisc, or is it more typical to have a root class (`1:1`) and then child classes? I decided to investigate `htb_change_class` to clarify this point further. This part of my thinking is about ensuring I'm correctly understanding the hierarchy and parent-child relationships within the HTB qdisc setup.

Overall, my thought process is a cycle of observing code, understanding its implications, cross-referencing with other parts of the code or underlying mechanisms, and formulating hypotheses or confirming assumptions before moving on to the next piece of the puzzle. My goal is to build a coherent picture of how these network traffic control components interact, especially under the specific conditions being tested.


278/4 2026/08/15 18:07 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1791 LineCount:20]

Results:
map[Contents:1791:		parent = parentid == TC_H_ROOT ? NULL : htb_find(parentid, sch);
1792:	
1793:		hopt = nla_data(tb[TCA_HTB_PARMS]);
1794:		if (!hopt->rate.rate || !hopt->ceil.rate)
1795:			goto failure;
1796:	
1797:		if (q->offload) {
1798:			/* Options not supported by the offload. */
1799:			if (hopt->rate.overhead || hopt->ceil.overhead) {
1800:				NL_SET_ERR_MSG(extack, "HTB offload doesn't support the overhead parameter");
1801:				goto failure;
1802:			}
1803:			if (hopt->rate.mpu || hopt->ceil.mpu) {
1804:				NL_SET_ERR_MSG(extack, "HTB offload doesn't support the mpu parameter");
1805:				goto failure;
1806:			}
1807:		}
1808:	
1809:		/* Keeping backward compatible with rate_table based iproute2 tc */
1810:		if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
]

279/4 2026/08/15 18:07 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 35430
							output: 17
							thoughts: 112
						

Thoughts:
**My Internal Monologue Regarding TC Handle Resolution**

Alright, so I'm looking at this `parentid` and its value is `TC_H_ROOT`. My immediate thought is, "Okay, if it's the root, then the `parent` pointer should be `NULL`." That seems straightforward enough.

But then, a little flag goes up in my mind. I recall that `TC_H_ROOT` is actually a specific numerical value – `0xFFFFFFFF`. And the problem is, I didn't *pass* `TC_H_ROOT` as the `parentid` in the first place. I actually passed `TC_H_MAKE(1<<16, 0)`. This is where things get a bit tangled, and I need to trace the logic.

So, if I passed `TC_H_MAKE(1<<16, 0)`, what is the system *actually* trying to find? The call `htb_find(TC_H_MAKE(1<<16, 0), sch)` implies it's looking for something related to that handle. Now, `TC_H_MAKE(1<<16, 0)` constructs a handle where the "class" part is `1<<16` (which is 65536) and the "qdisc" part is `0`.

Here's the crucial point of confusion: I'm thinking, "Wait a minute, `1:0` – is that really a class identifier?" My understanding is that a handle in this context often represents a qdisc *and* its classes. And `1:0` is typically used to denote a qdisc handle, specifically the root qdisc of a particular device or hierarchy, *not* an individual class. Classes are usually identified with a non-zero qdisc part.

This leads me to believe that there's a misunderstanding or an assumption being made in how `htb_find` is interpreting this handle. It seems to be treating `1<<16` as the *class* identifier, and `0` as the *qdisc* identifier for that class. But based on standard TC conventions, `1:0` is the qdisc handle, and any classes under it would have handles like `1:1`, `1:2`, etc.

To resolve this, I absolutely *must* dive into the `htb_find` function itself. I need to see precisely how it parses the provided `TC_H_MAKE` handle and what it's doing with the `class` and `qdisc` components. Is it expecting a specific format? Is there a default behavior I'm overlooking when the qdisc part is zero? That's my next step.


280/4 2026/08/15 18:07 tool grepper
0m Args:
map[Expression:htb_find]

Results:
map[Output:drivers/net/ethernet/mellanox/mlx5/core/en/htb.c=49=int mlx5e_htb_cur_leaf_nodes(struct mlx5e_htb *htb)
--
drivers/net/ethernet/mellanox/mlx5/core/en/htb.c-56-
drivers/net/ethernet/mellanox/mlx5/core/en/htb.c:57:static int mlx5e_htb_find_unused_qos_qid(struct mlx5e_htb *htb)
drivers/net/ethernet/mellanox/mlx5/core/en/htb.c-58-{
--
drivers/net/ethernet/mellanox/mlx5/core/en/htb.c=286=mlx5e_htb_leaf_alloc_queue(struct mlx5e_htb *htb, u16 classid,
--
drivers/net/ethernet/mellanox/mlx5/core/en/htb.c-297-
drivers/net/ethernet/mellanox/mlx5/core/en/htb.c:298:	qid = mlx5e_htb_find_unused_qos_qid(htb);
drivers/net/ethernet/mellanox/mlx5/core/en/htb.c-299-	if (qid < 0) {
--
net/sched/sch_htb.c=150=struct htb_sched {
--
net/sched/sch_htb.c-186-/* find class in global hash table using given handle */
net/sched/sch_htb.c:187:static inline struct htb_class *htb_find(u32 handle, struct Qdisc *sch)
net/sched/sch_htb.c-188-{
--
net/sched/sch_htb.c=198=static unsigned long htb_search(struct Qdisc *sch, u32 handle)
net/sched/sch_htb.c-199-{
net/sched/sch_htb.c:200:	return (unsigned long)htb_find(handle, sch);
net/sched/sch_htb.c-201-}
--
net/sched/sch_htb.c=220=static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_htb.c-234-		return HTB_DIRECT;	/* X:0 (direct flow) selected */
net/sched/sch_htb.c:235:	cl = htb_find(skb->priority, sch);
net/sched/sch_htb.c-236-	if (cl) {
--
net/sched/sch_htb.c-261-				return HTB_DIRECT;	/* X:0 (direct flow) */
net/sched/sch_htb.c:262:			cl = htb_find(res.classid, sch);
net/sched/sch_htb.c-263-			if (!cl)
--
net/sched/sch_htb.c-272-	/* classification failed; try to use default class */
net/sched/sch_htb.c:273:	cl = htb_find(TC_H_MAKE(TC_H_MAJ(sch->handle), q->defcls), sch);
net/sched/sch_htb.c-274-	if (!cl || cl->level)
--
net/sched/sch_htb.c=1544=static int htb_destroy_class_offload(struct Qdisc *sch, struct htb_class *cl,
--
net/sched/sch_htb.c-1598-			      TC_H_MIN(offload_opt.classid);
net/sched/sch_htb.c:1599:		struct htb_class *moved_cl = htb_find(classid, sch);
net/sched/sch_htb.c-1600-
--
net/sched/sch_htb.c=1762=static int htb_change_class(struct Qdisc *sch, u32 classid,
--
net/sched/sch_htb.c-1790-
net/sched/sch_htb.c:1791:	parent = parentid == TC_H_ROOT ? NULL : htb_find(parentid, sch);
net/sched/sch_htb.c-1792-
--
net/sched/sch_htb.c-1841-		if (!classid || TC_H_MAJ(classid ^ sch->handle) ||
net/sched/sch_htb.c:1842:		    htb_find(classid, sch))
net/sched/sch_htb.c-1843-			goto failure;
--
net/sched/sch_htb.c=2084=static unsigned long htb_bind_filter(struct Qdisc *sch, unsigned long parent,
--
net/sched/sch_htb.c-2086-{
net/sched/sch_htb.c:2087:	struct htb_class *cl = htb_find(classid, sch);
net/sched/sch_htb.c-2088-
]

281/4 2026/08/15 18:07 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 36832
							output: 24
							thoughts: 4950
						

Thoughts:
**My Thought Process on Network Traffic Shaping and Race Conditions**

I've been meticulously reviewing the network traffic shaping logic, and I want to articulate my thought process clearly, as if I'm laying out my internal monologue on this complex subject.

Initially, I was verifying the fundamental setup for HTB (Hierarchical Token Bucket) and SFQ (Stochastic Fairness Queuing) using Netlink. My first check was on how `TC_H_ROOT` is handled. When I pass `TC_H_ROOT` as the `parentid` to `add_class_htb`, I correctly deduced that the `parent` pointer within the function would indeed be `NULL`. This is expected and perfectly acceptable for establishing root classes within HTB. I confirmed this by looking at the call: `add_class_htb(nl_fd, ifindex, TC_H_ROOT, TC_H_MAKE(1<<16, c));`. This confirms they are indeed root classes, which is the desired behavior for HTB.

Next, my attention shifted to the SFQ qdisc. I realized that `add_qdisc_sfq` requires the `parent` to be a `classid`, not `TC_H_ROOT`. I checked the code: `add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE((c + 1) << 16, 0), TC_H_MAKE(1<<16, c));`. This is correct; the second argument, `TC_H_MAKE(1<<16, c)`, serves as the parent class ID for the SFQ qdisc, which is what we want.

I then double-checked the `add_qdisc_htb` function. My query was whether its handle was correctly set to `1:0`. The code `add_qdisc_htb(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT);` confirms this, with `TC_H_MAKE(1<<16, 0)` representing the handle `1:0`, and `TC_H_ROOT` as its parent. This is correct.

Following that, I re-examined `add_class_htb`, specifically its handle. I wanted to ensure it was correctly set to `1:c`. The line `add_class_htb(nl_fd, ifindex, TC_H_ROOT, TC_H_MAKE(1<<16, c));` confirms this, where `TC_H_MAKE(1<<16, c)` is the handle for the class, and `TC_H_ROOT` is its parent. This is also correct.

My verification continued with `add_qdisc_sfq`'s handle. I wanted to be sure it was `(c+1):0`. The code `add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE((c + 1) << 16, 0), TC_H_MAKE(1<<16, c));` shows the handle `TC_H_MAKE((c + 1) << 16, 0)`, which correctly translates to `(c+1):0`. This is also correct.

A quick thought about potential overflow crossed my mind: the maximum major number in TC handles is 65535. Given that `c` goes up to 2000, `c+1` would be 2001. This is well within the acceptable range, so there's no risk of exceeding the major number limit.

I then delved into the configuration parameters for `add_qdisc_htb`. The `struct tc_htb_glob gopt` contains `rate2quantum = 10` and `defcls = 1`. I considered if these values were appropriate. Yes, `rate2quantum = 10` is a reasonable default, and `defcls = 1` is also standard for the default class. No issues here.

My focus then moved to the `add_class_htb` parameters within `struct tc_htb_opt hopt`. I specifically looked at `buffer`, `cbuffer`, `quantum`, and `prio`. The values are set to `buffer = 1000`, `cbuffer = 1000`, `quantum = 1000`, and `prio = 0`. The critical check here was whether `buffer` and `cbuffer` were validated. While the `htb_change_class` function doesn't explicitly check these for zero values like it does for `rate` and `ceil`, it *does* use them to compute the actual buffer sizes in nanoseconds (`cl->buffer = PSCHED_TICKS2NS(hopt->buffer);`). Since `1000` is a valid, non-zero value, this should be fine and translate to a reasonable buffer size. The fact that `psched_ratecfg_precompute` doesn't explicitly validate `buffer` or `cbuffer` before calling it, and that `addattr_l` is used correctly with `TCA_HTB_PARMS`, reassures me that this part is also handled correctly.

Next, I validated the `add_qdisc_sfq` options. The `struct tc_sfq_qopt opt` includes `perturb_period = 1`, `limit = 1000`, `divisor = 1024`, and `flows = 127`. These are standard and reasonable settings for SFQ. The use of `addattr_l` with `TCA_OPTIONS` is also correct.

I then reviewed the `del_qdisc_root` function. The Netlink message construction, including `NLMSG_LENGTH`, `NLM_F_REQUEST | NLM_F_ACK`, `RTM_DELQDISC`, `tcm_family`, `tcm_ifindex`, `tcm_parent = TC_H_ROOT`, and `tcm_handle = 0`, all appear to be correctly set for deleting the root qdisc.

The `send_nl_req` function was my next point of scrutiny. It handles the `sendmsg` and `recvmsg` for Netlink communication. The core logic of setting up the `sockaddr_nl`, `iovec`, and `msghdr` seems robust. The crucial part is the handling of the reply. It expects an `NLMSG_ERROR` message. I noted that it correctly checks `ret_n->nlmsg_type == NLMSG_ERROR` and then inspects the `err->error` field. If `err->error == 0`, it signifies success (an ACK), otherwise it returns the error code. I also pondered a potential multipart message scenario, but concluded that since we're sending single requests and expecting a single ACK (which is an `NLMSG_ERROR`), this single-message handling is sufficient. The use of `NLM_F_ACK` in all requests ensures we'll always get an `NLMSG_ERROR` response, so the logic holds.

The `create_dummy` function for creating dummy interfaces was examined. The Netlink message construction for `RTM_NEWLINK` with `NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK` and the attributes for `IFLA_IFNAME` and `IFLA_LINKINFO` (with kind "dummy") are all correctly assembled.

The `bring_up` function, which uses `ioctl` with `SIOCGIFFLAGS` and `SIOCSIFFLAGS` to bring an interface up, also looks correct. The socket is properly created, the `ifr.ifr_flags` are modified to include `IFF_UP`, and the socket is closed.

Similarly, `get_ifindex` uses `ioctl` with `SIOCGIFINDEX` to retrieve the interface index, and its implementation is standard and correct.

Finally, I moved to the `main` function and the `racer` thread, as this is where the core race condition logic resides. The `unshare` for user and network namespaces, and the subsequent mapping of UIDs and GIDs via `/proc/self/uid_map` and `/proc/self/gid_map`, are standard practices for creating isolated environments. Bringing up the loopback interface is also a prerequisite.

The `racer` thread's loop is the most complex part. My detailed breakdown of its steps:

1.  **Add HTB root:** `add_qdisc_htb(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT)` - confirmed as correct.
2.  **Add classes:** The loop `for (int c = 1; c <= NUM_CLASSES; c++) { add_class_htb(...); }` is correct, creating the child classes under the root. I reconfirmed that `NUM_CLASSES = 2000` is well within limits.
3.  **Add SFQ qdiscs:** `for (int c = 1; c <= NUM_CLASSES; c++) { add_qdisc_sfq(...); }`. This is where the potential timing issue lies. I measured `elapsed_us` for this step. The parent `TC_H_MAKE(1<<16, c)` correctly maps to the classes created in step 2.
4.  **Send packets:** This loop uses `setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));` before `sendto`. I had a moment of doubt here: does `AF_PACKET`'s `sendto` honor `SO_PRIORITY` by mapping it to the `skb->priority`? I confirmed that `packet_sendmsg` does indeed use `sk->sk_priority` for the `skb->priority`. This means packets sent will be marked with the correct priority, which HTB will use.
5.  **Sleep to align with 1s timer:** This is the crucial part for the race. The goal is to execute `del_qdisc_root` within the 1-second interval that the SFQ timers fire. The calculation `sleep_us = 1000000 - (elapsed_us / 2) - 10000 + (rand_r(&seed) % 50000) - 25000;` aims to achieve this.
    *   `1000000 - (elapsed_us / 2)`: This part calculates the time to wake up halfway between the *start* of SFQ addition and the *end* of SFQ addition, plus an additional half of the elapsed time. If the SFQ addition starts at T0 and ends at T1 (T1-T0 = `elapsed_us`), this aims to wake up around T0 + `elapsed_us`/2.
    *   The timers are set to fire *after* they are added. So the first timer fires around `T1 + 1s`. The window for timers firing is roughly `[T1 + 1s, T1 + 2s]` (or more accurately, until they re-arm).
    *   My initial calculation logic was slightly off in my head. The timer is set when `add_qdisc_sfq` is called. So the first timer fires `1s` after *each* `add_qdisc_sfq` call. The window of timer firings is thus `[start + 1s, end + 1s]`.
    *   The sleep duration `sleep_us` is `1000000 - (elapsed_us / 2) - offset`. This means we wake up at `current_time + sleep_us`. Since `current_time` is roughly `start + elapsed_us`, we wake up at `start + elapsed_us + sleep_us`.
    *   Let's re-evaluate: we want to execute `del_qdisc_root` during `[start + 1s, end + 1s]`. The current time is `start + elapsed_us`. So we want to sleep for a duration such that `(start + elapsed_us) + sleep_us` falls within that window.
    *   The sleep calculation `1000000 - (elapsed_us / 2)` is intended to position the wake-up time approximately in the middle of the timer firing window. If `elapsed_us` is small, we wake up closer to `start + 1s`. If `elapsed_us` is large, we wake up closer to `end + 1s`. The added jitter (`-10000 + ... -25000`) further refines this.
    *   I then considered the case where `elapsed_us` is very large, making `sleep_us` negative. The `if (sleep_us > 0)` check correctly handles this by skipping the sleep. This means we might execute `del_qdisc_root` immediately if the timer window has already passed, which is acceptable.
    *   Crucially, I realized that `sfq_perturbation` re-arms itself every second because `perturb_period` is set to 1. This means even if we miss the first timer firing, subsequent timers will continue to fire, ensuring `del_qdisc_root` will eventually execute during a timer firing event.

6.  **Delete root:** `del_qdisc_root(nl_fd, ifindex);`. This is the target of the race.

A critical realization during this review was about packet enqueueing and the timing of `sfq_rehash`.
*   The SFQ timers fire at `start + 1s`, `start + 2s`, etc.
*   The packets are sent *after* the SFQ qdiscs are added but *before* the first timer fires (if `elapsed_us` is small enough) or *after* the first few timers have fired (if `elapsed_us` is large).
*   The `sfq_perturbation` function, when it calls `sfq_rehash`, checks `if (!q->filter_list && q->tail)`.
*   If packets are sent *before* the timer fires, `q->tail` will be non-NULL, and `sfq_rehash` will be called.
*   If `elapsed_us` is so large that the first timers fire *before* `sendto` is called, then `q->tail` will initially be NULL. The timers will just re-arm. Only after `sendto` is called will `q->tail` become non-NULL, and subsequent timer firings will then trigger `sfq_rehash`. This is perfectly fine and expected.
*   The HTB rate of 1 byte/s means packets will reside in the queue for a very long time (64 seconds for 64-byte packets). This guarantees that when `sfq_rehash` is eventually called, the packets will still be present in the queue.

The core idea is that the SFQ perturbation mechanism is designed to re-hash when packets are present. By ensuring that `del_qdisc_root` is called during the period when SFQ *would* be perturbing (i.e., when the timers fire), and by knowing that packets are sent and will persist, I'm confident the race condition is being targeted effectively. The `SO_PRIORITY` setting is the mechanism that tells HTB which class to associate the packets with, and the subsequent SFQ perturbation will then operate on these class-assigned packets.

Finally, I verified the `add_class_htb` rate: `rate = 1` and `ceil = 1`. This is a valid rate, and in `htb_change_class`, it's checked that `hopt->rate.rate` and `hopt->ceil.rate` are non-zero. The value `1` is acceptable and will simply result in very slow dequeueing, which is intended for this scenario. The `psched_ratecfg_precompute` function will handle this low rate by calculating appropriate `mult` and `shift` values without issues.


282/4 2026/08/15 18:08 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:skb->priority = sk->sk_priority]

Results:
map[Output:]

283/4 2026/08/15 18:08 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 41808
							output: 19
							thoughts: 10
						

Thoughts:
**A Deep Dive into `packet_sendmsg`**

My current focus is on the `packet_sendmsg` function. I'm delving into its inner workings to understand precisely how it handles the transmission of packets. This involves tracing the execution flow, examining the parameters it accepts, and analyzing the data structures it manipulates. My aim is to gain a comprehensive grasp of its behavior, especially concerning error handling, buffer management, and interaction with underlying network protocols. I need to be absolutely sure I understand every nuance to ensure the reliability and efficiency of our packet handling mechanisms.


284/4 2026/08/15 18:08 tool grepper
0m Args:
map[Expression:skb->priority =]

Results:
map[Output:
Full output is too long, showing 500 out of 848 lines.
Use more precise expression if possible.

drivers/net/amt.c=511=static struct sk_buff *amt_build_igmp_gq(struct amt_dev *amt)
--
drivers/net/amt.c-533-	skb_reset_mac_header(skb);
drivers/net/amt.c:534:	skb->priority = TC_PRIO_CONTROL;
drivers/net/amt.c-535-	skb_put(skb, sizeof(*iph));
--
drivers/net/amt.c=613=static void amt_send_discovery(struct amt_dev *amt)
--
drivers/net/amt.c-653-
drivers/net/amt.c:654:	skb->priority = TC_PRIO_CONTROL;
drivers/net/amt.c-655-	skb_dst_set(skb, &rt->dst);
--
drivers/net/amt.c=702=static void amt_send_request(struct amt_dev *amt, bool v6)
--
drivers/net/amt.c-742-
drivers/net/amt.c:743:	skb->priority = TC_PRIO_CONTROL;
drivers/net/amt.c-744-	skb_dst_set(skb, &rt->dst);
--
drivers/net/amt.c=806=static struct sk_buff *amt_build_mld_gq(struct amt_dev *amt)
--
drivers/net/amt.c-827-	eth = eth_hdr(skb);
drivers/net/amt.c:828:	skb->priority = TC_PRIO_CONTROL;
drivers/net/amt.c-829-	skb->protocol = htons(ETH_P_IPV6);
--
drivers/net/amt.c=2552=static void amt_send_advertisement(struct amt_dev *amt, __be32 nonce,
--
drivers/net/amt.c-2593-
drivers/net/amt.c:2594:	skb->priority = TC_PRIO_CONTROL;
drivers/net/amt.c-2595-	skb_dst_set(skb, &rt->dst);
--
drivers/net/bonding/bond_3ad.c=942=static int ad_lacpdu_send(struct port *port)
--
drivers/net/bonding/bond_3ad.c-959-	skb->protocol = PKT_TYPE_LACPDU;
drivers/net/bonding/bond_3ad.c:960:	skb->priority = TC_PRIO_CONTROL;
drivers/net/bonding/bond_3ad.c-961-
--
drivers/net/bonding/bond_alb.c=919=static void alb_send_lp_vid(struct slave *slave, const u8 mac_addr[],
--
drivers/net/bonding/bond_alb.c-939-	skb->protocol = pkt.type;
drivers/net/bonding/bond_alb.c:940:	skb->priority = TC_PRIO_CONTROL;
drivers/net/bonding/bond_alb.c-941-	skb->dev = slave->dev;
--
drivers/net/eql.c=337=static netdev_tx_t eql_slave_xmit(struct sk_buff *skb, struct net_device *dev)
--
drivers/net/eql.c-348-		skb->dev = slave_dev;
drivers/net/eql.c:349:		skb->priority = TC_PRIO_FILLER;
drivers/net/eql.c-350-		slave->bytes_queued += skb->len;
--
drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c=900=static int write_smt_entry(struct adapter *adapter, int idx)
--
drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c-915-	memcpy(req->src_mac1, pi->iscsic.mac_addr, ETH_ALEN);
drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c:916:	skb->priority = 1;
drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c-917-	offload_tx(&adapter->tdev, skb);
--
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c=533=static inline void mk_tid_release(struct sk_buff *skb, unsigned int tid)
--
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c-536-
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c:537:	skb->priority = CPL_PRIORITY_SETUP;
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c-538-	req = __skb_put(skb, sizeof(*req));
--
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c=805=static int do_abort_req_rss(struct t3cdev *dev, struct sk_buff *skb)
--
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c-835-		}
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c:836:		reply_skb->priority = CPL_PRIORITY_DATA;
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c-837-		__skb_put(reply_skb, sizeof(struct cpl_abort_rpl));
--
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c=1049=static void set_l2t_ix(struct t3cdev *tdev, u32 tid, struct l2t_entry *e)
--
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c-1058-	}
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c:1059:	skb->priority = CPL_PRIORITY_CONTROL;
drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c-1060-	req = skb_put(skb, sizeof(*req));
--
drivers/net/ethernet/chelsio/cxgb3/l2t.c=87=static int setup_l2e_send_pending(struct t3cdev *dev, struct sk_buff *skb,
--
drivers/net/ethernet/chelsio/cxgb3/l2t.c-106-	memcpy(req->dst_mac, e->dmac, sizeof(req->dst_mac));
drivers/net/ethernet/chelsio/cxgb3/l2t.c:107:	skb->priority = CPL_PRIORITY_CONTROL;
drivers/net/ethernet/chelsio/cxgb3/l2t.c-108-	cxgb3_ofld_send(dev, skb);
--
drivers/net/ethernet/chelsio/cxgb3/sge.c=1701=again:	reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);
--
drivers/net/ethernet/chelsio/cxgb3/sge.c-1705-		if (ret == 1) {
drivers/net/ethernet/chelsio/cxgb3/sge.c:1706:			skb->priority = ndesc;	/* save for restart */
drivers/net/ethernet/chelsio/cxgb3/sge.c-1707-			spin_unlock(&q->lock);
--
drivers/net/ethernet/chelsio/cxgb3/sge.c=2322=static int process_responses(struct adapter *adap, struct sge_qset *qs,
--
drivers/net/ethernet/chelsio/cxgb3/sge.c-2434-				skb->csum = rss_hi;
drivers/net/ethernet/chelsio/cxgb3/sge.c:2435:				skb->priority = rss_lo;
drivers/net/ethernet/chelsio/cxgb3/sge.c-2436-				ngathered = rx_offload(&adap->tdev, q, skb,
--
drivers/net/ethernet/chelsio/cxgb4/sge.c=2736=static int ctrl_xmit(struct sge_ctrl_txq *q, struct sk_buff *skb)
--
drivers/net/ethernet/chelsio/cxgb4/sge.c-2750-	if (unlikely(q->full)) {
drivers/net/ethernet/chelsio/cxgb4/sge.c:2751:		skb->priority = ndesc;                  /* save for restart */
drivers/net/ethernet/chelsio/cxgb4/sge.c-2752-		__skb_queue_tail(&q->sendq, skb);
--
drivers/net/ethernet/chelsio/cxgb4/sge.c=3056=static int ofld_xmit(struct sge_uld_txq *q, struct sk_buff *skb)
drivers/net/ethernet/chelsio/cxgb4/sge.c-3057-{
drivers/net/ethernet/chelsio/cxgb4/sge.c:3058:	skb->priority = calc_tx_flits_ofld(skb);       /* save for restart */
drivers/net/ethernet/chelsio/cxgb4/sge.c-3059-	spin_lock(&q->sendq.lock);
--
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c=3052=static u16 hns3_nic_select_queue(struct net_device *netdev,
--
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c-3066-
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c:3067:	skb->priority = h->kinfo.dscp_prio[dscp];
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c:3068:	if (skb->priority == HNAE3_PRIO_ID_INVALID)
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c:3069:		skb->priority = 0;
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c-3070-
--
drivers/net/ethernet/intel/ice/ice_txrx.c=2159=ice_xmit_frame_ring(struct sk_buff *skb, struct ice_tx_ring *tx_ring)
--
drivers/net/ethernet/intel/ice/ice_txrx.c-2229-		ice_eswitch_set_target_vsi(skb, &offload);
drivers/net/ethernet/intel/ice/ice_txrx.c:2230:	else if (unlikely((skb->priority == TC_PRIO_CONTROL ||
drivers/net/ethernet/intel/ice/ice_txrx.c-2231-			   eth->h_proto == htons(ETH_P_LLDP)) &&
--
drivers/net/ethernet/intel/ice/ice_txrx.c=2310=ice_select_queue(struct net_device *netdev, struct sk_buff *skb,
--
drivers/net/ethernet/intel/ice/ice_txrx.c-2317-	if (dcbcfg->pfc_mode == ICE_QOS_MODE_DSCP)
drivers/net/ethernet/intel/ice/ice_txrx.c:2318:		skb->priority = ice_get_dscp_up(dcbcfg, skb);
drivers/net/ethernet/intel/ice/ice_txrx.c-2319-
--
drivers/net/netkit.c=68=static void netkit_xnet(struct sk_buff *skb)
drivers/net/netkit.c-69-{
drivers/net/netkit.c:70:	skb->priority = 0;
drivers/net/netkit.c-71-	skb->mark = 0;
--
drivers/net/ovpn/io.c=458=void ovpn_xmit_special(struct ovpn_peer *peer, const void *data,
--
drivers/net/ovpn/io.c-476-	skb_reserve(skb, 128);
drivers/net/ovpn/io.c:477:	skb->priority = TC_PRIO_BESTEFFORT;
drivers/net/ovpn/io.c-478-	__skb_put_data(skb, data, len);
--
drivers/net/ppp/pppoe.c=768=static int pppoe_sendmsg(struct socket *sock, struct msghdr *m,
--
drivers/net/ppp/pppoe.c-811-
drivers/net/ppp/pppoe.c:812:	skb->priority = READ_ONCE(sk->sk_priority);
drivers/net/ppp/pppoe.c-813-	skb->protocol = cpu_to_be16(ETH_P_PPP_SES);
--
drivers/net/wan/hdlc_cisco.c=87=static void cisco_keepalive_send(struct net_device *dev, u32 type,
--
drivers/net/wan/hdlc_cisco.c-109-	skb_put(skb, sizeof(struct cisco_packet));
drivers/net/wan/hdlc_cisco.c:110:	skb->priority = TC_PRIO_CONTROL;
drivers/net/wan/hdlc_cisco.c-111-	skb->dev = dev;
--
drivers/net/wan/hdlc_fr.c=456=static void fr_lmi_send(struct net_device *dev, int fullrep)
--
drivers/net/wan/hdlc_fr.c-541-	skb_put(skb, i);
drivers/net/wan/hdlc_fr.c:542:	skb->priority = TC_PRIO_CONTROL;
drivers/net/wan/hdlc_fr.c-543-	skb->dev = dev;
--
drivers/net/wan/hdlc_ppp.c=202=static void ppp_tx_cp(struct net_device *dev, u16 pid, u8 code,
--
drivers/net/wan/hdlc_ppp.c-248-
drivers/net/wan/hdlc_ppp.c:249:	skb->priority = TC_PRIO_CONTROL;
drivers/net/wan/hdlc_ppp.c-250-	skb->dev = dev;
--
drivers/net/wireless/ath/ath9k/channel.c=1096=ath_chanctx_send_vif_ps_frame(struct ath_softc *sc, struct ath_vif *avp,
--
drivers/net/wireless/ath/ath9k/channel.c-1119-
drivers/net/wireless/ath/ath9k/channel.c:1120:		skb->priority = 7;
drivers/net/wireless/ath/ath9k/channel.c-1121-		skb_set_queue_mapping(skb, IEEE80211_AC_VO);
--
drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c=293=static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
--
drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c-361-	/* determine the priority */
drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c:362:	if ((skb->priority == 0) || (skb->priority > 7))
drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c:363:		skb->priority = cfg80211_classify8021d(skb, NULL);
drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c-364-
--
drivers/net/wireless/broadcom/brcm80211/brcmutil/utils.c=17=struct sk_buff *brcmu_pkt_buf_get_skb(uint len)
--
drivers/net/wireless/broadcom/brcm80211/brcmutil/utils.c-23-		skb_put(skb, len);
drivers/net/wireless/broadcom/brcm80211/brcmutil/utils.c:24:		skb->priority = 0;
drivers/net/wireless/broadcom/brcm80211/brcmutil/utils.c-25-	}
--
drivers/net/wireless/intel/ipw2x00/libipw_tx.c=240=netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev)
--
drivers/net/wireless/intel/ipw2x00/libipw_tx.c-323-
drivers/net/wireless/intel/ipw2x00/libipw_tx.c:324:		skb->priority = libipw_classify(skb);
drivers/net/wireless/intel/ipw2x00/libipw_tx.c-325-		header.qos_ctl |= cpu_to_le16(skb->priority & LIBIPW_QCTL_TID);
--
drivers/net/wireless/marvell/mwifiex/cfg80211.c=165=mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
--
drivers/net/wireless/marvell/mwifiex/cfg80211.c-187-
drivers/net/wireless/marvell/mwifiex/cfg80211.c:188:	skb->priority = LOW_PRIO_TID;
drivers/net/wireless/marvell/mwifiex/cfg80211.c-189-	__net_timestamp(skb);
--
drivers/net/wireless/marvell/mwifiex/cfg80211.c=4274=mwifiex_cfg80211_authenticate(struct wiphy *wiphy,
--
drivers/net/wireless/marvell/mwifiex/cfg80211.c-4415-
drivers/net/wireless/marvell/mwifiex/cfg80211.c:4416:	skb->priority = WMM_HIGHEST_PRIORITY;
drivers/net/wireless/marvell/mwifiex/cfg80211.c-4417-	__net_timestamp(skb);
--
drivers/net/wireless/marvell/mwifiex/main.c=1287=mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb,
--
drivers/net/wireless/marvell/mwifiex/main.c-1289-{
drivers/net/wireless/marvell/mwifiex/main.c:1290:	skb->priority = cfg80211_classify8021d(skb, NULL);
drivers/net/wireless/marvell/mwifiex/main.c-1291-	return mwifiex_1d_to_wmm_queue[skb->priority];
--
drivers/net/wireless/marvell/mwifiex/tdls.c=628=int mwifiex_send_tdls_data_frame(struct mwifiex_private *priv, const u8 *peer,
--
drivers/net/wireless/marvell/mwifiex/tdls.c-702-	case WLAN_TDLS_SETUP_RESPONSE:
drivers/net/wireless/marvell/mwifiex/tdls.c:703:		skb->priority = MWIFIEX_PRIO_BK;
drivers/net/wireless/marvell/mwifiex/tdls.c-704-		break;
drivers/net/wireless/marvell/mwifiex/tdls.c-705-	default:
drivers/net/wireless/marvell/mwifiex/tdls.c:706:		skb->priority = MWIFIEX_PRIO_VI;
drivers/net/wireless/marvell/mwifiex/tdls.c-707-		break;
--
drivers/net/wireless/marvell/mwifiex/tdls.c=809=int mwifiex_send_tdls_action_frame(struct mwifiex_private *priv, const u8 *peer,
--
drivers/net/wireless/marvell/mwifiex/tdls.c-869-
drivers/net/wireless/marvell/mwifiex/tdls.c:870:	skb->priority = MWIFIEX_PRIO_VI;
drivers/net/wireless/marvell/mwifiex/tdls.c-871-
--
drivers/net/wireless/mediatek/mt76/mac80211.c=1240=mt76_rx_convert(struct mt76_dev *dev, struct sk_buff *skb,
--
drivers/net/wireless/mediatek/mt76/mac80211.c-1250-
drivers/net/wireless/mediatek/mt76/mac80211.c:1251:	skb->priority = mstat.qos_ctl & IEEE80211_QOS_CTL_TID_MASK;
drivers/net/wireless/mediatek/mt76/mac80211.c-1252-
--
drivers/net/wireless/mediatek/mt76/mac80211.c=2157=mt76_offchannel_send_nullfunc(struct mt76_offchannel_cb_data *data,
--
drivers/net/wireless/mediatek/mt76/mac80211.c-2174-
drivers/net/wireless/mediatek/mt76/mac80211.c:2175:	skb->priority = 7;
drivers/net/wireless/mediatek/mt76/mac80211.c-2176-	skb_set_queue_mapping(skb, IEEE80211_AC_VO);
--
drivers/net/wireless/mediatek/mt76/mt7603/dma.c=15=mt7603_rx_loopback_skb(struct mt7603_dev *dev, struct sk_buff *skb)
--
drivers/net/wireless/mediatek/mt76/mt7603/dma.c-41-	idx = FIELD_GET(MT_TXD1_WLAN_IDX, val);
drivers/net/wireless/mediatek/mt76/mt7603/dma.c:42:	skb->priority = FIELD_GET(MT_TXD1_TID, val);
drivers/net/wireless/mediatek/mt76/mt7603/dma.c-43-
--
drivers/net/wireless/mediatek/mt76/scan.c=42=mt76_scan_send_probe(struct mt76_dev *dev, struct cfg80211_ssid *ssid)
--
drivers/net/wireless/mediatek/mt76/scan.c-66-
drivers/net/wireless/mediatek/mt76/scan.c:67:	skb->priority = 7;
drivers/net/wireless/mediatek/mt76/scan.c-68-	skb_set_queue_mapping(skb, IEEE80211_AC_VO);
--
drivers/net/wireless/realtek/rtlwifi/rtl8192se/trx.c=15=static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb,	u8 skb_queue)
--
drivers/net/wireless/realtek/rtlwifi/rtl8192se/trx.c-29-	 */
drivers/net/wireless/realtek/rtlwifi/rtl8192se/trx.c:30:	if (skb->priority == 7)
drivers/net/wireless/realtek/rtlwifi/rtl8192se/trx.c-31-		return QSLT_VO;
--
drivers/net/wireless/rsi/rsi_91x_coex.c=100=int rsi_coex_send_pkt(void *priv, struct sk_buff *skb, u8 hal_queue)
--
drivers/net/wireless/rsi/rsi_91x_coex.c-129-	/* Send packet to hal */
drivers/net/wireless/rsi/rsi_91x_coex.c:130:	if (skb->priority == MGMT_SOFT_Q)
drivers/net/wireless/rsi/rsi_91x_coex.c-131-		status = rsi_send_mgmt_pkt(common, skb);
--
drivers/net/wireless/rsi/rsi_91x_core.c=374=void rsi_core_xmit(struct rsi_common *common, struct sk_buff *skb)
--
drivers/net/wireless/rsi/rsi_91x_core.c-428-		q_num = MGMT_SOFT_Q;
drivers/net/wireless/rsi/rsi_91x_core.c:429:		skb->priority = q_num;
drivers/net/wireless/rsi/rsi_91x_core.c-430-
--
drivers/net/wireless/rsi/rsi_91x_core.c-439-			tid = *qos & IEEE80211_QOS_CTL_TID_MASK;
drivers/net/wireless/rsi/rsi_91x_core.c:440:			skb->priority = TID_TO_WME_AC(tid);
drivers/net/wireless/rsi/rsi_91x_core.c-441-		} else {
drivers/net/wireless/rsi/rsi_91x_core.c-442-			tid = IEEE80211_NONQOS_TID;
drivers/net/wireless/rsi/rsi_91x_core.c:443:			skb->priority = BE_Q;
drivers/net/wireless/rsi/rsi_91x_core.c-444-		}
--
drivers/net/wireless/rsi/rsi_91x_core.c-472-			q_num = MGMT_SOFT_Q;
drivers/net/wireless/rsi/rsi_91x_core.c:473:			skb->priority = q_num;
drivers/net/wireless/rsi/rsi_91x_core.c-474-		}
--
drivers/net/wireless/rsi/rsi_91x_hal.c=152=int rsi_prepare_data_desc(struct rsi_common *common, struct sk_buff *skb)
--
drivers/net/wireless/rsi/rsi_91x_hal.c-251-		if (common->eapol4_confirm)
drivers/net/wireless/rsi/rsi_91x_hal.c:252:			skb->priority = VO_Q;
drivers/net/wireless/rsi/rsi_91x_hal.c-253-		else
--
drivers/net/wireless/rsi/rsi_91x_mgmt.c=343=static int rsi_send_internal_mgmt_frame(struct rsi_common *common,
--
drivers/net/wireless/rsi/rsi_91x_mgmt.c-354-	desc->desc_dword0.len_qno |= cpu_to_le16(DESC_IMMEDIATE_WAKEUP);
drivers/net/wireless/rsi/rsi_91x_mgmt.c:355:	skb->priority = MGMT_SOFT_Q;
drivers/net/wireless/rsi/rsi_91x_mgmt.c-356-	tx_params = (struct skb_info *)&IEEE80211_SKB_CB(skb)->driver_data;
--
drivers/net/wireless/ti/wlcore/main.c=1390=static struct sk_buff *wl12xx_alloc_dummy_packet(struct wl1271 *wl)
--
drivers/net/wireless/ti/wlcore/main.c-1414-	/* Dummy packets require the TID to be management */
drivers/net/wireless/ti/wlcore/main.c:1415:	skb->priority = WL1271_TID_MGMT;
drivers/net/wireless/ti/wlcore/main.c-1416-
--
drivers/net/wwan/iosm/iosm_ipc_mux_codec.c=366=static int ipc_mux_net_receive(struct iosm_mux *ipc_mux, int if_id,
--
drivers/net/wwan/iosm/iosm_ipc_mux_codec.c-378-	/* Pass the packet to the netif layer. */
drivers/net/wwan/iosm/iosm_ipc_mux_codec.c:379:	dest_skb->priority = service_class;
drivers/net/wwan/iosm/iosm_ipc_mux_codec.c-380-
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c=159=static void send_act_open_req(struct cxgbi_sock *csk, struct sk_buff *skb,
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-164-
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c:165:	skb->priority = CPL_PRIORITY_SETUP;
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-166-
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c=240=static void send_abort_req(struct cxgbi_sock *csk)
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-253-	req = (struct cpl_abort_req *)skb->head;
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c:254:	skb->priority = CPL_PRIORITY_DATA;
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-255-	set_arp_failure_handler(skb, abort_arp_failure);
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c=276=static void send_abort_rpl(struct cxgbi_sock *csk, int rst_status)
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-285-	csk->cpl_abort_rpl = NULL;
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c:286:	skb->priority = CPL_PRIORITY_DATA;
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-287-	rpl->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_OFLD_HOST_ABORT_CON_RPL));
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c=299=static u32 send_rx_credits(struct cxgbi_sock *csk, u32 credits)
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-318-				V_RX_CREDITS(credits));
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c:319:	skb->priority = CPL_PRIORITY_ACK;
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-320-	cxgb3_ofld_send(csk->cdev->lldev, skb);
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c=394=static int push_tx_frames(struct cxgbi_sock *csk, int req_completion)
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-425-		__skb_unlink(skb, &csk->write_queue);
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c:426:		skb->priority = CPL_PRIORITY_DATA;
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-427-		skb->csum = wrs_needed;	/* remember this until the WR_ACK */
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c=1096=static int ddp_set_map(struct cxgbi_ppm *ppm, struct cxgbi_sock *csk,
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-1119-				       &sg_off);
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c:1120:		skb->priority = CPL_PRIORITY_CONTROL;
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-1121-		cxgb3_ofld_send(ppm->lldev, skb);
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c=1126=static void ddp_clear_map(struct cxgbi_device *cdev, struct cxgbi_ppm *ppm,
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-1147-		ulp_mem_io_set_hdr(skb, pm_addr);
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c:1148:		skb->priority = CPL_PRIORITY_CONTROL;
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-1149-		cxgb3_ofld_send(ppm->lldev, skb);
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c=1153=static int ddp_setup_conn_pgidx(struct cxgbi_sock *csk,
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-1174-	req->val = cpu_to_be64(val << 28);
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c:1175:	skb->priority = CPL_PRIORITY_CONTROL;
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-1176-
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c=1189=static int ddp_setup_conn_digest(struct cxgbi_sock *csk, unsigned int tid,
--
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-1210-	req->val = cpu_to_be64(val << 24);
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c:1211:	skb->priority = CPL_PRIORITY_CONTROL;
drivers/scsi/cxgbi/cxgb3i/cxgb3i.c-1212-
--
drivers/scsi/fcoe/fcoe.c=1453=static int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp)
--
drivers/scsi/fcoe/fcoe.c-1530-	skb->protocol = htons(ETH_P_FCOE);
drivers/scsi/fcoe/fcoe.c:1531:	skb->priority = fcoe->priority;
drivers/scsi/fcoe/fcoe.c-1532-
--
drivers/scsi/fcoe/fcoe_ctlr.c=376=static void fcoe_ctlr_solicit(struct fcoe_ctlr *fip, struct fcoe_fcf *fcf)
--
drivers/scsi/fcoe/fcoe_ctlr.c-423-	skb->protocol = htons(ETH_P_FIP);
drivers/scsi/fcoe/fcoe_ctlr.c:424:	skb->priority = fip->priority;
drivers/scsi/fcoe/fcoe_ctlr.c-425-	skb_reset_mac_header(skb);
--
drivers/scsi/fcoe/fcoe_ctlr.c=529=static void fcoe_ctlr_send_keep_alive(struct fcoe_ctlr *fip,
--
drivers/scsi/fcoe/fcoe_ctlr.c-581-	skb->protocol = htons(ETH_P_FIP);
drivers/scsi/fcoe/fcoe_ctlr.c:582:	skb->priority = fip->priority;
drivers/scsi/fcoe/fcoe_ctlr.c-583-	skb_reset_mac_header(skb);
--
drivers/scsi/fcoe/fcoe_ctlr.c=604=static int fcoe_ctlr_encaps(struct fcoe_ctlr *fip, struct fc_lport *lport,
--
drivers/scsi/fcoe/fcoe_ctlr.c-674-	skb->protocol = htons(ETH_P_FIP);
drivers/scsi/fcoe/fcoe_ctlr.c:675:	skb->priority = fip->priority;
drivers/scsi/fcoe/fcoe_ctlr.c-676-	skb_reset_mac_header(skb);
--
drivers/scsi/fcoe/fcoe_ctlr.c=2012=static void fcoe_ctlr_vn_send(struct fcoe_ctlr *fip,
--
drivers/scsi/fcoe/fcoe_ctlr.c-2101-	skb->protocol = htons(ETH_P_FIP);
drivers/scsi/fcoe/fcoe_ctlr.c:2102:	skb->priority = fip->priority;
drivers/scsi/fcoe/fcoe_ctlr.c-2103-	skb_reset_mac_header(skb);
--
drivers/scsi/fcoe/fcoe_ctlr.c=2890=static void fcoe_ctlr_vlan_send(struct fcoe_ctlr *fip,
--
drivers/scsi/fcoe/fcoe_ctlr.c-2937-	skb->protocol = htons(ETH_P_FIP);
drivers/scsi/fcoe/fcoe_ctlr.c:2938:	skb->priority = fip->priority;
drivers/scsi/fcoe/fcoe_ctlr.c-2939-	skb_reset_mac_header(skb);
--
drivers/staging/rtl8723bs/os_dep/os_intfs.c=339=static u16 rtw_select_queue(struct net_device *dev, struct sk_buff *skb,
--
drivers/staging/rtl8723bs/os_dep/os_intfs.c-344-
drivers/staging/rtl8723bs/os_dep/os_intfs.c:345:	skb->priority = rtw_classify8021d(skb);
drivers/staging/rtl8723bs/os_dep/os_intfs.c-346-
drivers/staging/rtl8723bs/os_dep/os_intfs.c-347-	if (pmlmepriv->acm_mask != 0)
drivers/staging/rtl8723bs/os_dep/os_intfs.c:348:		skb->priority = qos_acm(pmlmepriv->acm_mask, skb->priority);
drivers/staging/rtl8723bs/os_dep/os_intfs.c-349-
--
include/linux/netdevice.h=4443=static __always_inline int ____dev_forward_skb(struct net_device *dev,
--
include/linux/netdevice.h-4454-	skb_scrub_packet(skb, !net_eq(dev_net(dev), dev_net(skb->dev)));
include/linux/netdevice.h:4455:	skb->priority = 0;
include/linux/netdevice.h-4456-	return 0;
--
include/net/bluetooth/bluetooth.h=552=static inline struct sk_buff *bt_skb_sendmsg(struct sock *sk,
--
include/net/bluetooth/bluetooth.h-573-
include/net/bluetooth/bluetooth.h:574:	skb->priority = READ_ONCE(sk->sk_priority);
include/net/bluetooth/bluetooth.h-575-
--
net/8021q/vlan_core.c=10=bool vlan_do_receive(struct sk_buff **skbp)
--
net/8021q/vlan_core.c-59-
net/8021q/vlan_core.c:60:	skb->priority = vlan_get_ingress_priority(vlan_dev, skb->vlan_tci);
net/8021q/vlan_core.c-61-	__vlan_hwaccel_clear_tag(skb);
--
net/batman-adv/bat_iv_ogm.c=558=static bool batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
--
net/batman-adv/bat_iv_ogm.c-590-
net/batman-adv/bat_iv_ogm.c:591:	forw_packet_aggr->skb->priority = TC_PRIO_CONTROL;
net/batman-adv/bat_iv_ogm.c-592-	skb_reserve(forw_packet_aggr->skb, ETH_HLEN);
--
net/batman-adv/main.c=361=void batadv_skb_set_priority(struct sk_buff *skb, int offset)
--
net/batman-adv/main.c-403-
net/batman-adv/main.c:404:	skb->priority = prio + 256;
net/batman-adv/main.c-405-}
--
net/batman-adv/routing.c=1151=int batadv_recv_frag_packet(struct sk_buff *skb,
--
net/batman-adv/routing.c-1167-
net/batman-adv/routing.c:1168:	skb->priority = frag_packet->priority + 256;
net/batman-adv/routing.c-1169-
--
net/batman-adv/tvlv.c=699=void batadv_tvlv_unicast_send(struct batadv_priv *bat_priv, const u8 *src,
--
net/batman-adv/tvlv.c-720-
net/batman-adv/tvlv.c:721:	skb->priority = TC_PRIO_CONTROL;
net/batman-adv/tvlv.c-722-	skb_reserve(skb, ETH_HLEN);
--
net/bluetooth/hci_core.c=3511=static void hci_prio_recalculate(struct hci_dev *hdev, __u8 type)
--
net/bluetooth/hci_core.c-3546-
net/bluetooth/hci_core.c:3547:			skb->priority = HCI_PRIO_MAX - 1;
net/bluetooth/hci_core.c-3548-
--
net/bluetooth/l2cap_core.c=1003=static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len,
--
net/bluetooth/l2cap_core.c-1022-	bt_cb(skb)->force_active = BT_POWER_FORCE_ACTIVE_ON;
net/bluetooth/l2cap_core.c:1023:	skb->priority = HCI_PRIO_MAX;
net/bluetooth/l2cap_core.c-1024-
--
net/bluetooth/l2cap_core.c=1172=static struct sk_buff *l2cap_create_sframe_pdu(struct l2cap_chan *chan,
--
net/bluetooth/l2cap_core.c-1200-
net/bluetooth/l2cap_core.c:1201:	skb->priority = HCI_PRIO_MAX;
net/bluetooth/l2cap_core.c-1202-	return skb;
--
net/bluetooth/l2cap_sock.c=1739=static struct sk_buff *l2cap_sock_alloc_skb_cb(struct l2cap_chan *chan,
--
net/bluetooth/l2cap_sock.c-1761-
net/bluetooth/l2cap_sock.c:1762:	skb->priority = READ_ONCE(sk->sk_priority);
net/bluetooth/l2cap_sock.c-1763-
--
net/bluetooth/smp.c=3171=static struct sk_buff *smp_alloc_skb_cb(struct l2cap_chan *chan,
--
net/bluetooth/smp.c-3180-
net/bluetooth/smp.c:3181:	skb->priority = HCI_PRIO_MAX;
net/bluetooth/smp.c-3182-	bt_cb(skb)->l2cap.chan = chan;
--
net/bpf/test_run.c=925=static int convert___skb_to_skb(struct sk_buff *skb, struct __sk_buff *__skb)
--
net/bpf/test_run.c-982-	skb->mark = __skb->mark;
net/bpf/test_run.c:983:	skb->priority = __skb->priority;
net/bpf/test_run.c-984-	skb->skb_iif = __skb->ingress_ifindex;
--
net/bpf/test_run.c=1011=static void convert_skb_to___skb(struct sk_buff *skb, struct __sk_buff *__skb)
--
net/bpf/test_run.c-1018-	__skb->mark = skb->mark;
net/bpf/test_run.c:1019:	__skb->priority = skb->priority;
net/bpf/test_run.c-1020-	__skb->ingress_ifindex = skb->skb_iif;
--
net/bridge/br_cfm.c=161=static struct sk_buff *ccm_frame_build(struct br_cfm_mep *mep,
--
net/bridge/br_cfm.c-193-	skb->protocol = htons(ETH_P_CFM);
net/bridge/br_cfm.c:194:	skb->priority = CFM_FRAME_PRIO;
net/bridge/br_cfm.c-195-
--
net/bridge/br_mrp.c=133=static struct sk_buff *br_mrp_skb_alloc(struct net_bridge_port *p,
--
net/bridge/br_mrp.c-145-	skb->protocol = htons(ETH_P_MRP);
net/bridge/br_mrp.c:146:	skb->priority = MRP_FRAME_PRIO;
net/bridge/br_mrp.c-147-	skb_reserve(skb, sizeof(*eth_hdr));
--
net/bridge/br_stp_bpdu.c=35=static void br_send_bpdu(struct net_bridge_port *p,
--
net/bridge/br_stp_bpdu.c-45-	skb->protocol = htons(ETH_P_802_2);
net/bridge/br_stp_bpdu.c:46:	skb->priority = TC_PRIO_CONTROL;
net/bridge/br_stp_bpdu.c-47-
--
net/can/raw.c=918=static int raw_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
--
net/can/raw.c-995-	skb->dev = dev;
net/can/raw.c:996:	skb->priority = sockc.priority;
net/can/raw.c-997-	skb->mark = sockc.mark;
--
net/core/dev.c=4311=static void skb_update_prio(struct sk_buff *skb)
--

]

285/4 2026/08/15 18:08 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 54525
							output: 34
							thoughts: 39
						

Thoughts:
**My Thought Process on Examining `packet_sendmsg` and `sock_tx_timestamp`**

My immediate reaction upon noticing the call to `sock_tx_timestamp` from within `packet_sendmsg` in `net/packet/af_packet.c` was one of focused curiosity. This isn't just a casual observation; it's a trigger to delve deeper into the mechanics of packet transmission and, specifically, how timestamps are being handled in this context.

My internal dialogue goes something like this: "Hold on a second. `packet_sendmsg` is the core user-space interface for sending raw packets via the AF_PACKET socket. If it's directly invoking `sock_tx_timestamp`, that suggests a fundamental integration of transmit timestamping into the packet sending path. This is significant."

My next step, naturally, is to pull up the source code for `packet_sendmsg`. I need to see precisely *how* and *when* `sock_tx_timestamp` is called. Is it conditional? Is it always executed? What arguments are passed to it, and what does it return? These are the crucial details that will illuminate the functionality.

I'm anticipating finding that `sock_tx_timestamp` is likely responsible for either:

1.  **Querying the hardware for a precise transmit timestamp:** This would be the case if we're dealing with hardware timestamping capabilities, which are becoming increasingly important for accurate network measurements and synchronization protocols like PTP.
2.  **Generating a software timestamp:** If hardware timestamping isn't available or configured, the kernel might be generating a timestamp itself.
3.  **Facilitating the propagation of a user-provided timestamp:** Less likely for a raw packet send, but I wouldn't rule it out entirely without seeing the code.

The fact that this is happening within `packet_sendmsg` implies that the timestamping mechanism is tightly coupled with the act of the packet leaving the kernel and heading towards the network interface. This means the timestamp should, in theory, reflect the point at which the packet is handed off to the network driver for actual transmission onto the wire.

My mental checklist is already forming:

*   **Context of the call:** Where *exactly* within `packet_sendmsg` is `sock_tx_timestamp` invoked? Is it before or after any queueing?
*   **Parameters:** What information is passed to `sock_tx_timestamp`? Is it just the socket, or are there other relevant data structures?
*   **Return value:** What does `sock_tx_timestamp` return, and how is that information used by `packet_sendmsg`? Is it stored in a socket option, a control message, or something else?
*   **Configuration:** How is this timestamping behavior controlled? Is it a socket option that needs to be set by the user? Is it determined by hardware capabilities or module parameters?

Ultimately, this observation is a starting point for a detailed examination of the packet transmission pipeline and the intricate mechanisms for capturing accurate timing information at the point of transmission. It's about understanding the precision and reliability of the timestamps generated for raw packets sent via AF_PACKET.


286/4 2026/08/15 18:08 tool grepper
0m Args:
map[Expression:skb->priority = PathPrefix:net/packet/af_packet.c]

Results:
map[Output:net/packet/af_packet.c=1947=static int packet_sendmsg_spkt(struct socket *sock, struct msghdr *msg,
--
net/packet/af_packet.c-2051-	skb->dev = dev;
net/packet/af_packet.c:2052:	skb->priority = sockc.priority;
net/packet/af_packet.c-2053-	skb->mark = sockc.mark;
--
net/packet/af_packet.c=2569=static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
--
net/packet/af_packet.c-2583-	skb->dev = dev;
net/packet/af_packet.c:2584:	skb->priority = sockc->priority;
net/packet/af_packet.c-2585-	skb->mark = sockc->mark;
--
net/packet/af_packet.c=2945=static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
--
net/packet/af_packet.c-3064-	skb->dev = dev;
net/packet/af_packet.c:3065:	skb->priority = sockc.priority;
net/packet/af_packet.c-3066-	skb->mark = sockc.mark;
]

287/4 2026/08/15 18:08 llm repro-generator
1m Model:
gemini-3.1-pro-preview

Tokens:
							input: 54956
							output: 4488
							thoughts: 8884
						

Thoughts:
**My Thought Process on Packet Priority and Timing Synchronization**

Right, so the core of my thinking here revolves around ensuring that when I send packets, they carry the correct priority that will be respected by the traffic control (TC) subsystem, and that I'm performing these operations at precisely the right moments relative to a timing cycle.

First, I confirmed the mechanism by which packet priority is set. I see that `packet_snd` (the function responsible for sending packets from an AF_PACKET socket) explicitly sets `skb->priority` by copying the value from `sockc.priority`. Crucially, `sockc.priority` itself is initialized either from the socket's `sk->sk_priority` or from control messages (`cmsg`). This is a direct confirmation: if I set `SO_PRIORITY` on an `AF_PACKET` socket, it *will* translate into the `skb->priority` field of the kernel's socket buffer. This is a fundamental piece of the puzzle.

The next significant challenge was precise timing. The goal is to manipulate the queueing disciplines (qdiscs) and send packets in a way that aligns with some external 1-second timer, likely a tick or a periodic event within the TC system. This required a deep dive into the timing calculations.

Initially, my sleep calculation was a bit off. I was calculating the sleep duration based on `elapsed_us` from `start` to `end`, aiming to wake up at `start + 1s`. However, I realized `elapsed_us` was the duration *up to* the point I was at (`end`). To correctly align with the 1s timer *after* `end`, I needed to sleep for the difference between the target wake-up time (`start + 1s + elapsed_us/2`) and my current time (`start + elapsed_us`). This simplifies to needing to sleep for `1s - elapsed_us/2`.

Then came a critical realization: the act of sending packets between the time measurement (`end`) and the sleep call itself (`usleep`) takes time. I called this `send_us`. If I simply slept for `1s - elapsed_us/2`, I would wake up *after* the intended 1s mark, specifically at `end + send_us + 1s - elapsed_us/2`, which is equivalent to `start + 1s + elapsed_us/2 + send_us`. This could be too late.

This led to the crucial refinement: I *must* measure `send_us` as well. By capturing the time *after* sending all the packets (`after_send`), I could accurately calculate `send_us`. My sleep duration then became `1000000 - (elapsed_us / 2) - send_us`. This directly accounts for the time spent adding qdiscs and sending packets, making the sleep duration much more precise to hit the target window.

The subsequent thought was about what happens if this calculated `sleep_us` becomes negative. This means I've already passed the desired synchronization point within the current 1-second window. The brilliant insight here is that the timers re-arm every 1 second. So, instead of failing or trying to catch up, I can simply add multiples of 1 second (`1000000` microseconds) until the `sleep_us` becomes non-negative. This effectively means I'll aim for the middle of the *next* available 1-second window. This logic is captured by the `while (sleep_us < 0)` loop.

Finally, I considered the jitter. I wanted to introduce a small random variation around the calculated sleep time to avoid perfectly synchronized behavior across multiple instances, which could create artificial contention. My initial jitter calculation was `(rand_r(&seed) % 50000) - 25000`. The final refinement was to ensure that the *total* sleep duration (calculated `sleep_us` plus jitter) is still positive before calling `usleep`. If `sleep_us + jitter` is zero or negative, it means I should effectively sleep for 0 microseconds or not sleep at all, which is correct if I've already passed the target point even with jitter.

Throughout this process, I was also meticulously checking the details of the Netlink communication, the structure of the TC commands (`add_qdisc_htb`, `add_class_htb`, `add_qdisc_sfq`), and the associated parameters like handles and parents. I also addressed potential robustness issues in the Netlink request sending/receiving logic, ensuring sequence numbers are handled correctly to match requests with replies, and that the sequence number generation is thread-safe. The creation and management of dummy network interfaces also required careful consideration of Linux networking primitives. The overall strategy is to set up a complex TC hierarchy (HTB root with SFQ children per class) and then repeatedly inject packets with varying priorities, all while synchronizing this injection to align with the system's 1-second timing pulses.


288/4 2026/08/15 18:10 tool set-results
0m Args:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 2000

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    static __thread int seq = 0;
    n->nlmsg_seq = ++seq;
    n->nlmsg_pid = getpid();
    
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    
    while (1) {
        int len = recvmsg(fd, &msg, 0);
        if (len < 0) return -1;
        struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
        for (; NLMSG_OK(ret_n, len); ret_n = NLMSG_NEXT(ret_n, len)) {
            if (ret_n->nlmsg_seq != n->nlmsg_seq) continue;
            if (ret_n->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
                if (err->error == 0) return 0;
                return err->error;
            }
            if (ret_n->nlmsg_type == NLMSG_DONE) return 0;
        }
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_htb(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_glob gopt = {
        .version = 3,
        .rate2quantum = 10,
        .defcls = 1,
        .debug = 0,
        .direct_pkts = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_class_htb(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = {
            .rate = 1,
            .linklayer = 1,
        },
        .ceil = {
            .rate = 1,
            .linklayer = 1,
        },
        .buffer = 1000,
        .cbuffer = 1000,
        .quantum = 1000,
        .prio = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    unsigned int seed = time(NULL) + id;
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char buf[64] = {0};
    
    for (int iter = 0; iter < 10; iter++) {
        // 1. Add HTB root
        if (add_qdisc_htb(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT) < 0) {
            printf("[-] Failed to add HTB root\n");
            continue;
        }
        
        // 2. Add classes
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_class_htb(nl_fd, ifindex, TC_H_ROOT, TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add HTB class %d\n", c);
                break;
            }
        }
        
        struct timespec start, end, after_send;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        // 3. Add SFQ qdiscs
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE((c + 1) << 16, 0), TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add SFQ qdisc %d\n", c);
                break;
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        
        // 4. Send packets
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &after_send);
        
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        long send_us = (after_send.tv_sec - end.tv_sec) * 1000000 + (after_send.tv_nsec - end.tv_nsec) / 1000;
        
        // 5. Sleep to align with 1s timer
        long sleep_us = 1000000 - (elapsed_us / 2) - send_us;
        while (sleep_us < 0) {
            sleep_us += 1000000;
        }
        long jitter = (rand_r(&seed) % 50000) - 25000;
        if (sleep_us + jitter > 0) {
            usleep(sleep_us + jitter);
        }
        
        // 6. Delete root
        del_qdisc_root(nl_fd, ifindex);
    }
    
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}
]

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 2000

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    static __thread int seq = 0;
    n->nlmsg_seq = ++seq;
    n->nlmsg_pid = getpid();
    
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    
    while (1) {
        int len = recvmsg(fd, &msg, 0);
        if (len < 0) return -1;
        struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
        for (; NLMSG_OK(ret_n, len); ret_n = NLMSG_NEXT(ret_n, len)) {
            if (ret_n->nlmsg_seq != n->nlmsg_seq) continue;
            if (ret_n->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
                if (err->error == 0) return 0;
                return err->error;
            }
            if (ret_n->nlmsg_type == NLMSG_DONE) return 0;
        }
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_htb(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_glob gopt = {
        .version = 3,
        .rate2quantum = 10,
        .defcls = 1,
        .debug = 0,
        .direct_pkts = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_class_htb(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = {
            .rate = 1,
            .linklayer = 1,
        },
        .ceil = {
            .rate = 1,
            .linklayer = 1,
        },
        .buffer = 1000,
        .cbuffer = 1000,
        .quantum = 1000,
        .prio = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    unsigned int seed = time(NULL) + id;
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char buf[64] = {0};
    
    for (int iter = 0; iter < 10; iter++) {
        // 1. Add HTB root
        if (add_qdisc_htb(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT) < 0) {
            printf("[-] Failed to add HTB root\n");
            continue;
        }
        
        // 2. Add classes
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_class_htb(nl_fd, ifindex, TC_H_ROOT, TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add HTB class %d\n", c);
                break;
            }
        }
        
        struct timespec start, end, after_send;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        // 3. Add SFQ qdiscs
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE((c + 1) << 16, 0), TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add SFQ qdisc %d\n", c);
                break;
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        
        // 4. Send packets
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &after_send);
        
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        long send_us = (after_send.tv_sec - end.tv_sec) * 1000000 + (after_send.tv_nsec - end.tv_nsec) / 1000;
        
        // 5. Sleep to align with 1s timer
        long sleep_us = 1000000 - (elapsed_us / 2) - send_us;
        while (sleep_us < 0) {
            sleep_us += 1000000;
        }
        long jitter = (rand_r(&seed) % 50000) - 25000;
        if (sleep_us + jitter > 0) {
            usleep(sleep_us + jitter);
        }
        
        // 6. Delete root
        del_qdisc_root(nl_fd, ifindex);
    }
    
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}
]

289/3 2026/08/15 18:10 loop
0m
290/4 2026/08/15 18:10 iteration 0
0m
291/5 2026/08/15 18:10 action merge-repro-c
0m Results:
map[CurrentCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 2000

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    static __thread int seq = 0;
    n->nlmsg_seq = ++seq;
    n->nlmsg_pid = getpid();
    
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    
    while (1) {
        int len = recvmsg(fd, &msg, 0);
        if (len < 0) return -1;
        struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
        for (; NLMSG_OK(ret_n, len); ret_n = NLMSG_NEXT(ret_n, len)) {
            if (ret_n->nlmsg_seq != n->nlmsg_seq) continue;
            if (ret_n->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
                if (err->error == 0) return 0;
                return err->error;
            }
            if (ret_n->nlmsg_type == NLMSG_DONE) return 0;
        }
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_htb(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_glob gopt = {
        .version = 3,
        .rate2quantum = 10,
        .defcls = 1,
        .debug = 0,
        .direct_pkts = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_class_htb(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = {
            .rate = 1,
            .linklayer = 1,
        },
        .ceil = {
            .rate = 1,
            .linklayer = 1,
        },
        .buffer = 1000,
        .cbuffer = 1000,
        .quantum = 1000,
        .prio = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    unsigned int seed = time(NULL) + id;
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char buf[64] = {0};
    
    for (int iter = 0; iter < 10; iter++) {
        // 1. Add HTB root
        if (add_qdisc_htb(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT) < 0) {
            printf("[-] Failed to add HTB root\n");
            continue;
        }
        
        // 2. Add classes
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_class_htb(nl_fd, ifindex, TC_H_ROOT, TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add HTB class %d\n", c);
                break;
            }
        }
        
        struct timespec start, end, after_send;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        // 3. Add SFQ qdiscs
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE((c + 1) << 16, 0), TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add SFQ qdisc %d\n", c);
                break;
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        
        // 4. Send packets
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &after_send);
        
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        long send_us = (after_send.tv_sec - end.tv_sec) * 1000000 + (after_send.tv_nsec - end.tv_nsec) / 1000;
        
        // 5. Sleep to align with 1s timer
        long sleep_us = 1000000 - (elapsed_us / 2) - send_us;
        while (sleep_us < 0) {
            sleep_us += 1000000;
        }
        long jitter = (rand_r(&seed) % 50000) - 25000;
        if (sleep_us + jitter > 0) {
            usleep(sleep_us + jitter);
        }
        
        // 6. Delete root
        del_qdisc_root(nl_fd, ifindex);
    }
    
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}
]

292/5 2026/08/15 18:10 action compile-c-prog
0m Results:
map[CompilerError: FormattedReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 2000

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    static __thread int seq = 0;
    n->nlmsg_seq = ++seq;
    n->nlmsg_pid = getpid();
    
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    
    while (1) {
        int len = recvmsg(fd, &msg, 0);
        if (len < 0) return -1;
        struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
        for (; NLMSG_OK(ret_n, len); ret_n = NLMSG_NEXT(ret_n, len)) {
            if (ret_n->nlmsg_seq != n->nlmsg_seq) continue;
            if (ret_n->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
                if (err->error == 0) return 0;
                return err->error;
            }
            if (ret_n->nlmsg_type == NLMSG_DONE) return 0;
        }
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_htb(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_glob gopt = {
        .version = 3,
        .rate2quantum = 10,
        .defcls = 1,
        .debug = 0,
        .direct_pkts = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_class_htb(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = {
            .rate = 1,
            .linklayer = 1,
        },
        .ceil = {
            .rate = 1,
            .linklayer = 1,
        },
        .buffer = 1000,
        .cbuffer = 1000,
        .quantum = 1000,
        .prio = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    unsigned int seed = time(NULL) + id;
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char buf[64] = {0};
    
    for (int iter = 0; iter < 10; iter++) {
        // 1. Add HTB root
        if (add_qdisc_htb(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT) < 0) {
            printf("[-] Failed to add HTB root\n");
            continue;
        }
        
        // 2. Add classes
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_class_htb(nl_fd, ifindex, TC_H_ROOT, TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add HTB class %d\n", c);
                break;
            }
        }
        
        struct timespec start, end, after_send;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        // 3. Add SFQ qdiscs
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE((c + 1) << 16, 0), TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add SFQ qdisc %d\n", c);
                break;
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        
        // 4. Send packets
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &after_send);
        
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        long send_us = (after_send.tv_sec - end.tv_sec) * 1000000 + (after_send.tv_nsec - end.tv_nsec) / 1000;
        
        // 5. Sleep to align with 1s timer
        long sleep_us = 1000000 - (elapsed_us / 2) - send_us;
        while (sleep_us < 0) {
            sleep_us += 1000000;
        }
        long jitter = (rand_r(&seed) % 50000) - 25000;
        if (sleep_us + jitter > 0) {
            usleep(sleep_us + jitter);
        }
        
        // 6. Delete root
        del_qdisc_root(nl_fd, ifindex);
    }
    
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}
]

293/5 2026/08/15 18:10 action If
0m Args:
map[CompilerError:]

294/3 2026/08/15 18:10 action run-c-repro
6m Results:
map[CandidateBugTitle: CandidateCrashReport: CandidateReproduced:false ConsoleOutput:[   69.925812][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   69.925823][   T33] audit: type=1400 audit(1786817487.421:201): avc:  denied  { transition } for  pid=5824 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.940410][   T33] audit: type=1400 audit(1786817487.421:202): avc:  denied  { noatsecure } for  pid=5824 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.947666][   T33] audit: type=1400 audit(1786817487.421:203): avc:  denied  { rlimitinh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.955118][   T33] audit: type=1400 audit(1786817487.421:204): avc:  denied  { siginh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.882178][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[   71.884435][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[   72.086796][   T33] audit: type=1400 audit(1786817489.581:205): avc:  denied  { write } for  pid=5831 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.132436][   T33] audit: type=1400 audit(1786817489.631:206): avc:  denied  { write } for  pid=5834 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:62312' (ED25519) to the list of known hosts.
[   73.059124][   T33] audit: type=1400 audit(1786817490.551:207): avc:  denied  { write } for  pid=5845 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.109647][   T33] audit: type=1400 audit(1786817490.601:208): avc:  denied  { write } for  pid=5849 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.142473][   T33] audit: type=1400 audit(1786817490.641:209): avc:  denied  { create } for  pid=5844 comm="syz-executor172" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   73.149256][   T33] audit: type=1400 audit(1786817490.641:210): avc:  denied  { net_raw } for  pid=5844 comm="syz-executor172" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[   75.384696][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   75.384705][   T33] audit: type=1400 audit(1786817492.881:217): avc:  denied  { write } for  pid=5873 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.471748][   T33] audit: type=1400 audit(1786817492.971:218): avc:  denied  { write } for  pid=5876 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.708252][   T33] audit: type=1400 audit(1786817493.201:219): avc:  denied  { write } for  pid=5879 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.757470][   T33] audit: type=1400 audit(1786817493.251:220): avc:  denied  { write } for  pid=5882 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.063531][   T33] audit: type=1400 audit(1786817493.561:221): avc:  denied  { write } for  pid=5885 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.149299][   T33] audit: type=1400 audit(1786817493.641:222): avc:  denied  { write } for  pid=5888 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   77.768311][   T33] audit: type=1400 audit(1786817495.261:223): avc:  denied  { setopt } for  pid=5844 comm="syz-executor172" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   77.774772][   T33] audit: type=1400 audit(1786817495.261:224): avc:  denied  { write } for  pid=5844 comm="syz-executor172" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   82.111715][    T9] cfg80211: failed to load regulatory.db
[+] unshare successful.
[+] Done.
[  133.311348][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  133.313557][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
 OtherCrashReports:<nil> StraceOutput:/strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor2744046132

<...>
n=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10642, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7d\x02\x7c\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9947, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x95\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10642, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10642, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10643, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7e\x02\x7d\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9947, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9947, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10643, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10643, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9948, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x96\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10644, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7f\x02\x7e\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9948, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9948, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10644, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10644, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9949, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x97\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10645, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x80\x02\x7f\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9949, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9949, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10645, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10645, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9950, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x98\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10646, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x81\x02\x80\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9950, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9950, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10646, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10646, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10647, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x82\x02\x81\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9951, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x99\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10647, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10647, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9951, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9951, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10648, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x83\x02\x82\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9952, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9a\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10648, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10648, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9952, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9952, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10649, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x84\x02\x83\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9953, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9b\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10649, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10649, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10650, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x85\x02\x84\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9953, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9953, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid( <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10650, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10650, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9954, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9c\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10651, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x86\x02\x85\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9954, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9954, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10651, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10651, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10652, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x87\x02\x86\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9955, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9d\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10652, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10652, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9955, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9955, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10653, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x88\x02\x87\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9956, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9e\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10653, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10653, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9956, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9956, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10654, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x89\x02\x88\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9957, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9f\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10654, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10654, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10655, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8a\x02\x89\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9957, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9957, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9958, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa0\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10655, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10655, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10656, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8b\x02\x8a\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9958, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9958, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10656, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10656, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9959, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa1\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10657, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8c\x02\x8b\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9959, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9959, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10657, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10657, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10658, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8d\x02\x8c\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9960, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa2\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10658, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10658, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10659, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8e\x02\x8d\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9960, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9960, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10659, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10659, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9961, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa3\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10660, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8f\x02\x8e\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9961, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9961, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10660, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10660, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10661, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x90\x02\x8f\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9962, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa4\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10661, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10661, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10662, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x91\x02\x90\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9962, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9962, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid( <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10662, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10662, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9963, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa5\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10663, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x92\x02\x91\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10663, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10663, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9963, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9963, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] getpid( <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10664, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x93\x02\x92\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9964, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa6\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10664, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10664, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10665, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x94\x02\x93\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9964, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9964, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9965, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa7\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10665, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10665, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10666, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x95\x02\x94\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9965, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9965, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9966, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa8\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10666, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10666, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10667, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x96\x02\x95\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10667, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10667, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10668, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x97\x02\x96\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9966, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9966, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid( <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10668, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10668, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9967, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa9\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10669, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x98\x02\x97\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9967, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9967, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10669, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10669, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9968, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xaa\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10670, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x99\x02\x98\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10670, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10670, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10671, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9a\x02\x99\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9968, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9968, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9969, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xab\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10671, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10671, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10672, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9b\x02\x9a\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9969, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9969, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9970, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xac\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10672, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10672, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10673, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9c\x02\x9b\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9970, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9970, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9971, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xad\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10673, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10673, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10674, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9d\x02\x9c\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9971, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9971, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10674, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10674, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9972, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xae\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10675, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9e\x02\x9d\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10675, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10675, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10676, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9f\x02\x9e\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9972, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9972, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9973, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xaf\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10676, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10676, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10677, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa0\x02\x9f\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10677, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10677, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10678, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa1\x02\xa0\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9973, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9973, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10678, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10678, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9974, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb0\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10679, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa2\x02\xa1\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9974, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9974, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9975, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb1\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10679, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10679, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10680, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa3\x02\xa2\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10680, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10680, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9975, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9975, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10681, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa4\x02\xa3\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9976, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb2\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10681, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10681, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10682, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa5\x02\xa4\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9976, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9976, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10682, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10682, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10683, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa6\x02\xa5\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9977, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb3\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10683, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10683, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10684, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa7\x02\xa6\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10684, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10684, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9977, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9977, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10685, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa8\x02\xa7\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9978, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb4\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10685, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10685, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10686, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa9\x02\xa8\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9978, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9978, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9979, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb5\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10686, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10686, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10687, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaa\x02\xa9\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9979, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9979, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10687, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10687, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9980, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb6\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10688, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xab\x02\xaa\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9980, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9980, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10688, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10688, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9981, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb7\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10689, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xac\x02\xab\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10689, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10689, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9981, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9981, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10690, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xad\x02\xac\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9982, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb8\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10690, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10690, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10691, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xae\x02\xad\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9982, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9982, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9983, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb9\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9983, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9983, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10691, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10691, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9984, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xba\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10692, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaf\x02\xae\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10692, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10692, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9984, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9984, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10693, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb0\x02\xaf\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9985, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbb\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10693, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10693, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9985, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9985, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10694, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb1\x02\xb0\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9986, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbc\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10694, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10694, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10695, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb2\x02\xb1\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9986, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9986, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9987, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbd\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10695, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10695, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10696, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb3\x02\xb2\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9987, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9987, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10696, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10696, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9988, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbe\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10697, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb4\x02\xb3\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9988, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9988, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10697, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10697, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9989, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbf\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10698, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb5\x02\xb4\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9989, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9989, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10698, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10698, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9990, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc0\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10699, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb6\x02\xb5\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9990, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9990, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9991, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc1\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10699, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10699, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10700, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb7\x02\xb6\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9991, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9991, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10700, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10700, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9992, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc2\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10701, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb8\x02\xb7\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9992, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9992, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10701, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10701, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10702, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb9\x02\xb8\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9993, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc3\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10702, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10702, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10703, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xba\x02\xb9\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9993, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9993, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10703, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10703, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9994, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc4\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10704, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbb\x02\xba\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9994, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9994, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10704, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10704, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10705, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbc\x02\xbb\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9995, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc5\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10705, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10705, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9995, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9995, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9996, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc6\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>

[host] Command execution timed out after 2m30s
 TestError:]

295/3 2026/08/15 18:16 action truncate-log
0m Results:
map[TruncatedConsoleOutput:[   69.925812][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   69.925823][   T33] audit: type=1400 audit(1786817487.421:201): avc:  denied  { transition } for  pid=5824 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.940410][   T33] audit: type=1400 audit(1786817487.421:202): avc:  denied  { noatsecure } for  pid=5824 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.947666][   T33] audit: type=1400 audit(1786817487.421:203): avc:  denied  { rlimitinh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.955118][   T33] audit: type=1400 audit(1786817487.421:204): avc:  denied  { siginh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.882178][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[   71.884435][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[   72.086796][   T33] audit: type=1400 audit(1786817489.581:205): avc:  denied  { write } for  pid=5831 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.132436][   T33] audit: type=1400 audit(1786817489.631:206): avc:  denied  { write } for  pid=5834 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:62312' (ED25519) to the list of known hosts.
[   73.059124][   T33] audit: type=1400 audit(1786817490.551:207): avc:  denied  { write } for  pid=5845 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.109647][   T33] audit: type=1400 audit(1786817490.601:208): avc:  denied  { write } for  pid=5849 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.142473][   T33] audit: type=1400 audit(1786817490.641:209): avc:  denied  { create } for  pid=5844 comm="syz-executor172" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   73.149256][   T33] audit: type=1400 audit(1786817490.641:210): avc:  denied  { net_raw } for  pid=5844 comm="syz-executor172" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[   75.384696][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   75.384705][   T33] audit: type=1400 audit(1786817492.881:217): avc:  denied  { write } for  pid=5873 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.471748][   T33] audit: type=1400 audit(1786817492.971:218): avc:  denied  { write } for  pid=5876 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.708252][   T33] audit: type=1400 audit(1786817493.201:219): avc:  denied  { write } for  pid=5879 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.757470][   T33] audit: type=1400 audit(1786817493.251:220): avc:  denied  { write } for  pid=5882 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.063531][   T33] audit: type=1400 audit(1786817493.561:221): avc:  denied  { write } for  pid=5885 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.149299][   T33] audit: type=1400 audit(1786817493.641:222): avc:  denied  { write } for  pid=5888 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   77.768311][   T33] audit: type=1400 audit(1786817495.261:223): avc:  denied  { setopt } for  pid=5844 comm="syz-executor172" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   77.774772][   T33] audit: type=1400 audit(1786817495.261:224): avc:  denied  { write } for  pid=5844 comm="syz-executor172" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   82.111715][    T9] cfg80211: failed to load regulatory.db
[+] unshare successful.
[+] Done.
[  133.311348][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  133.313557][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
 TruncatedCrashReport: TruncatedStraceOutput:/strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor2744046132

<...>
n=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10642, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7d\x02\x7c\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9947, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x95\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10642, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10642, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10643, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7e\x02\x7d\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9947, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9947, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10643, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10643, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9948, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x96\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10644, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7f\x02\x7e\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9948, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9948, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10644, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10644, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9949, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x97\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10645, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x80\x02\x7f\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9949, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9949, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10645, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10645, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9950, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x98\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10646, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x81\x02\x80\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9950, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9950, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10646, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10646, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10647, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x82\x02\x81\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9951, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x99\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10647, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10647, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9951, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9951, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10648, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x83\x02\x82\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9952, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9a\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10648, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10648, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9952, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9952, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10649, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x84\x02\x83\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9953, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9b\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10649, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10649, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10650, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x85\x02\x84\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9953, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9953, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid( <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10650, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10650, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9954, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9c\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10651, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x86\x02\x85\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9954, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9954, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10651, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10651, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10652, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x87\x02\x86\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9955, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9d\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10652, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10652, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9955, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9955, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10653, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x88\x02\x87\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9956, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9e\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10653, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10653, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9956, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9956, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10654, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x89\x02\x88\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9957, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9f\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10654, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10654, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10655, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8a\x02\x89\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9957, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9957, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9958, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa0\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10655, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10655, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10656, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8b\x02\x8a\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9958, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9958, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10656, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10656, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9959, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa1\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10657, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8c\x02\x8b\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9959, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9959, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10657, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10657, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10658, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8d\x02\x8c\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9960, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa2\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10658, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10658, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10659, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8e\x02\x8d\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9960, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9960, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10659, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10659, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9961, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa3\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10660, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8f\x02\x8e\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9961, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9961, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10660, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10660, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10661, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x90\x02\x8f\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9962, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa4\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10661, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10661, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10662, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x91\x02\x90\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9962, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9962, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid( <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10662, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10662, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9963, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa5\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10663, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x92\x02\x91\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10663, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10663, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9963, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9963, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] getpid( <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10664, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x93\x02\x92\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9964, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa6\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10664, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10664, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10665, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x94\x02\x93\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9964, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9964, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9965, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa7\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10665, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10665, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10666, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x95\x02\x94\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9965, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9965, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9966, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa8\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10666, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10666, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10667, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x96\x02\x95\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10667, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10667, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10668, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x97\x02\x96\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9966, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9966, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid( <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10668, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10668, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9967, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa9\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10669, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x98\x02\x97\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9967, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9967, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10669, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10669, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9968, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xaa\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10670, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x99\x02\x98\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10670, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10670, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10671, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9a\x02\x99\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9968, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9968, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9969, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xab\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10671, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10671, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10672, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9b\x02\x9a\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9969, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9969, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9970, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xac\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10672, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10672, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10673, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9c\x02\x9b\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9970, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9970, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9971, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xad\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10673, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10673, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10674, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9d\x02\x9c\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9971, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9971, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10674, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10674, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9972, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xae\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10675, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9e\x02\x9d\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10675, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10675, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10676, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9f\x02\x9e\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9972, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9972, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9973, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xaf\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10676, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10676, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10677, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa0\x02\x9f\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10677, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10677, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10678, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa1\x02\xa0\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9973, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9973, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10678, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10678, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9974, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb0\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10679, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa2\x02\xa1\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9974, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9974, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9975, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb1\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10679, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10679, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10680, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa3\x02\xa2\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10680, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10680, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9975, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9975, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10681, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa4\x02\xa3\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9976, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb2\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10681, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10681, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10682, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa5\x02\xa4\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9976, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9976, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10682, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10682, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10683, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa6\x02\xa5\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9977, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb3\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10683, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10683, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10684, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa7\x02\xa6\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10684, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10684, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9977, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9977, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10685, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa8\x02\xa7\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9978, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb4\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10685, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10685, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10686, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa9\x02\xa8\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9978, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9978, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9979, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb5\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10686, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10686, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10687, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaa\x02\xa9\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9979, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9979, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10687, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10687, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9980, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb6\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10688, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xab\x02\xaa\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9980, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9980, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10688, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10688, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9981, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb7\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10689, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xac\x02\xab\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10689, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10689, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9981, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9981, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10690, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xad\x02\xac\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9982, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb8\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10690, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10690, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10691, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xae\x02\xad\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9982, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9982, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9983, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb9\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9983, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9983, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10691, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10691, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9984, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xba\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10692, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaf\x02\xae\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10692, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10692, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9984, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9984, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10693, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb0\x02\xaf\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9985, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbb\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10693, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10693, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9985, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9985, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10694, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb1\x02\xb0\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9986, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbc\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10694, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10694, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10695, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb2\x02\xb1\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9986, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9986, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9987, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbd\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10695, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10695, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10696, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb3\x02\xb2\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9987, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9987, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10696, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10696, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9988, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbe\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10697, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb4\x02\xb3\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9988, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9988, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10697, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10697, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9989, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbf\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10698, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb5\x02\xb4\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9989, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9989, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10698, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10698, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9990, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc0\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10699, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb6\x02\xb5\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9990, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9990, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9991, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc1\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10699, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10699, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10700, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb7\x02\xb6\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9991, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9991, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10700, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10700, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9992, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc2\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10701, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb8\x02\xb7\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9992, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9992, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10701, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10701, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10702, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb9\x02\xb8\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9993, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc3\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10702, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10702, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10703, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xba\x02\xb9\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9993, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9993, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10703, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10703, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9994, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc4\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10704, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbb\x02\xba\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9994, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9994, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10704, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10704, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10705, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbc\x02\xbb\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9995, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc5\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10705, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10705, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9995, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9995, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9996, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc6\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>

[host] Command execution timed out after 2m30s
]

296/3 2026/08/15 18:16 agent repro-oracle
2m Model:
best-expensive

Results:
map[Feedback:The reproduction attempt failed because the generated program did not properly trigger the race condition. The bug is a race condition between the SFQ perturbation timer (`sfq_perturbation`) and the destruction of its parent qdisc (e.g., HTB).

In `sfq_perturbation`, if there are packets in the queue (`q->tail != NULL`), it calls `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent qdisc using `qdisc_lookup_rcu`. Concurrently, if the parent qdisc is being destroyed, it is removed from the qdisc hash table via `qdisc_hash_del` (called from `__qdisc_destroy`). If the timer fires exactly after the parent is removed from the hash table but before the child SFQ qdisc is destroyed (which would cancel the timer), `qdisc_lookup_rcu` returns NULL, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

To trigger this race, the reproducer must:
1. Create a parent qdisc (e.g., HTB) and a class.
2. Create an SFQ qdisc as a child of the class, with `perturb` set to 1 second (the minimum non-zero value).
3. Enqueue at least one packet into the SFQ qdisc so that `q->tail` is non-NULL (e.g., by setting the HTB rate to a very low value and sending a packet through the interface).
4. **CRITICAL**: Wait for approximately 1 second for the timer to be ready to fire.
5. Delete the parent qdisc.

The syzkaller reproducer likely failed because it executed netlink commands in a tight loop without waiting for the 1-second `perturb_period` to elapse, meaning the timer never fired. You should write a C program that sets up the qdiscs, sends a packet, sleeps for ~1 second (e.g., `usleep(995000)`), and then deletes the root qdisc, repeating this in a loop with slight timing variations to hit the race window. ProbePassed:false TerminalError: TitleMatches:false]

Instruction:
You are a security researcher with deep Linux kernel background.
Analyze the results of running the generated program.

=== CRITICAL ENVIRONMENT & TARGET CLASSIFICATION ===
Set 'TerminalError' to a descriptive error message ONLY if:
1. The execution failed due to missing hardware device nodes, subsystems, kernel modules, or privilege limits
   that cannot be loaded, created, or bypassed by user-space C code edits in the VM guest.
2. The target source files or functions described in the bug description do not exist in the checked-out codebase,
   meaning the codebase version is mismatched and the target code is absent.

=== CRITICAL PROHIBITIONS ===
- Do NOT classify a run as a terminal failure or assume a bug is fixed based on git log entries, commit titles,
  or commit messages. Reproducibility can ONLY be determined by executing reproducer candidates in the VM.
- Do NOT suggest C code strategies, repairs, or namespace bypasses when setting 'TerminalError'.


=== PHASE 2: BUG REPRODUCTION (EVALUATION) ===
The executed program was a full reproducer candidate attempting to trigger the target bug/crash.
Use this to guide your classification and feedback:
1. If a crash was triggered (Reproduced is true):
   - Determine if the triggered crash matches the expected bug.
   - If you conclude they represent the same underlying bug (the same root cause)
     despite different titles, crash signatures, or call traces, set TitleMatches
     to true and provide a detailed, technical, and verbose explanation of the
     equivalence in the 'Feedback' field.
   - If they do not represent the same bug (a completely unrelated crash/collision),
     set TitleMatches to false and explain the collision in 'Feedback'.
   - If they match exactly, set TitleMatches to true and provide a brief confirmation in 'Feedback'.
2. If the execution was successful (exit 0) WITHOUT a crash (Reproduced is false):
   - The reproduction attempt failed to trigger the bug. Analyze the console/strace output
     to understand why the bug did not trigger (e.g., timing, input arguments, environment setup)
     and provide feedback on how to improve the reproducer logic to trigger the crash.

Critical Diagnostic Rule for Reproduction Failures:
If the reproduction attempt fails (e.g., a system call returns an error, or a
warning/error message appears in the console log), you MUST:
1. Identify the failing system call from the execution trace or strace output.
2. Identify any corresponding warning or error messages in the console log.
3. Immediately search the kernel source tree for the warning message strings or
   the code of the failing system call/subsystem to locate the validation logic.
4. Trace the kernel's validation logic to diagnose the exact constraint violation
   or input mismatch in the generated program.
5. Provide a technical diagnosis in the feedback explaining the exact kernel constraint that was violated and why.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

IsProbe: false
Reproduced: false
Console Output: [   69.925812][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   69.925823][   T33] audit: type=1400 audit(1786817487.421:201): avc:  denied  { transition } for  pid=5824 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.940410][   T33] audit: type=1400 audit(1786817487.421:202): avc:  denied  { noatsecure } for  pid=5824 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.947666][   T33] audit: type=1400 audit(1786817487.421:203): avc:  denied  { rlimitinh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.955118][   T33] audit: type=1400 audit(1786817487.421:204): avc:  denied  { siginh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.882178][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[   71.884435][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[   72.086796][   T33] audit: type=1400 audit(1786817489.581:205): avc:  denied  { write } for  pid=5831 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   72.132436][   T33] audit: type=1400 audit(1786817489.631:206): avc:  denied  { write } for  pid=5834 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:62312' (ED25519) to the list of known hosts.
[   73.059124][   T33] audit: type=1400 audit(1786817490.551:207): avc:  denied  { write } for  pid=5845 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.109647][   T33] audit: type=1400 audit(1786817490.601:208): avc:  denied  { write } for  pid=5849 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.142473][   T33] audit: type=1400 audit(1786817490.641:209): avc:  denied  { create } for  pid=5844 comm="syz-executor172" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   73.149256][   T33] audit: type=1400 audit(1786817490.641:210): avc:  denied  { net_raw } for  pid=5844 comm="syz-executor172" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[   75.384696][   T33] kauditd_printk_skb: 6 callbacks suppressed
[   75.384705][   T33] audit: type=1400 audit(1786817492.881:217): avc:  denied  { write } for  pid=5873 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.471748][   T33] audit: type=1400 audit(1786817492.971:218): avc:  denied  { write } for  pid=5876 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.708252][   T33] audit: type=1400 audit(1786817493.201:219): avc:  denied  { write } for  pid=5879 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.757470][   T33] audit: type=1400 audit(1786817493.251:220): avc:  denied  { write } for  pid=5882 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.063531][   T33] audit: type=1400 audit(1786817493.561:221): avc:  denied  { write } for  pid=5885 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.149299][   T33] audit: type=1400 audit(1786817493.641:222): avc:  denied  { write } for  pid=5888 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   77.768311][   T33] audit: type=1400 audit(1786817495.261:223): avc:  denied  { setopt } for  pid=5844 comm="syz-executor172" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   77.774772][   T33] audit: type=1400 audit(1786817495.261:224): avc:  denied  { write } for  pid=5844 comm="syz-executor172" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   82.111715][    T9] cfg80211: failed to load regulatory.db
[+] unshare successful.
[+] Done.
[  133.311348][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  133.313557][ T1374] ieee802154 phy1 wpan1: encryption failed: -22

Strace Output: /strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor2744046132

<...>
n=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10642, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7d\x02\x7c\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9947, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x95\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10642, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10642, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10643, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7e\x02\x7d\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9947, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9947, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10643, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10643, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9948, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x96\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10644, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7f\x02\x7e\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9948, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9948, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10644, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10644, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9949, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x97\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10645, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x80\x02\x7f\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9949, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9949, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10645, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10645, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9950, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x98\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10646, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x81\x02\x80\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9950, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9950, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10646, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10646, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10647, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x82\x02\x81\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9951, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x99\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10647, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10647, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9951, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9951, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10648, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x83\x02\x82\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9952, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9a\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10648, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10648, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9952, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9952, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10649, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x84\x02\x83\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9953, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9b\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10649, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10649, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10650, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x85\x02\x84\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9953, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9953, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid( <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10650, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10650, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9954, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9c\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10651, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x86\x02\x85\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9954, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9954, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10651, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10651, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10652, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x87\x02\x86\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9955, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9d\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10652, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10652, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9955, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9955, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10653, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x88\x02\x87\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9956, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9e\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10653, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10653, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9956, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9956, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10654, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x89\x02\x88\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9957, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x9f\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10654, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10654, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10655, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8a\x02\x89\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9957, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9957, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9958, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa0\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10655, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10655, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10656, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8b\x02\x8a\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9958, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9958, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10656, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10656, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9959, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa1\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10657, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8c\x02\x8b\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9959, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9959, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10657, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10657, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10658, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8d\x02\x8c\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9960, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa2\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10658, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10658, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10659, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8e\x02\x8d\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9960, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9960, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10659, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10659, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9961, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa3\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10660, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8f\x02\x8e\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9961, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9961, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10660, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10660, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10661, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x90\x02\x8f\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9962, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa4\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10661, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10661, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10662, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x91\x02\x90\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9962, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9962, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid( <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10662, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10662, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9963, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa5\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10663, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x92\x02\x91\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10663, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10663, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9963, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9963, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] getpid( <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10664, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x93\x02\x92\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9964, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa6\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10664, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10664, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10665, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x94\x02\x93\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9964, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9964, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9965, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa7\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10665, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10665, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10666, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x95\x02\x94\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9965, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9965, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9966, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa8\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10666, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10666, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10667, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x96\x02\x95\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10667, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10667, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10668, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x97\x02\x96\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9966, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9966, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid( <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10668, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10668, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9967, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xa9\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10669, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x98\x02\x97\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9967, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9967, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10669, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10669, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9968, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xaa\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10670, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x99\x02\x98\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10670, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10670, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10671, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9a\x02\x99\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9968, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9968, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9969, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xab\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10671, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10671, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10672, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9b\x02\x9a\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9969, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9969, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9970, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xac\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10672, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10672, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10673, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9c\x02\x9b\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9970, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9970, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9971, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xad\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10673, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10673, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10674, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9d\x02\x9c\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9971, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9971, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10674, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10674, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9972, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xae\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10675, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9e\x02\x9d\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10675, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10675, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10676, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9f\x02\x9e\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9972, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9972, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9973, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xaf\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10676, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10676, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10677, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa0\x02\x9f\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10677, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10677, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10678, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa1\x02\xa0\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9973, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9973, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10678, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10678, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9974, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb0\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10679, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa2\x02\xa1\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9974, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9974, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9975, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb1\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10679, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10679, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10680, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa3\x02\xa2\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10680, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10680, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9975, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9975, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10681, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa4\x02\xa3\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9976, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb2\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10681, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10681, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10682, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa5\x02\xa4\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9976, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9976, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10682, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10682, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10683, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa6\x02\xa5\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9977, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb3\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10683, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10683, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10684, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa7\x02\xa6\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10684, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10684, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9977, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9977, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10685, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa8\x02\xa7\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9978, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb4\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10685, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10685, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10686, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa9\x02\xa8\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9978, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9978, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9979, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb5\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10686, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10686, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10687, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaa\x02\xa9\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9979, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9979, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10687, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10687, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9980, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb6\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10688, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xab\x02\xaa\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9980, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9980, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10688, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10688, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9981, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb7\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10689, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xac\x02\xab\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10689, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10689, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9981, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9981, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10690, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xad\x02\xac\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9982, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb8\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10690, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10690, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10691, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xae\x02\xad\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9982, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9982, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9983, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xb9\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9983, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9983, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10691, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10691, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9984, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xba\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10692, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaf\x02\xae\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10692, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10692, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9984, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9984, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10693, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb0\x02\xaf\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9985, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbb\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10693, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10693, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9985, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9985, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10694, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb1\x02\xb0\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9986, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbc\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10694, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10694, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10695, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb2\x02\xb1\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9986, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9986, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9987, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbd\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10695, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10695, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10696, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb3\x02\xb2\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9987, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9987, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10696, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10696, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9988, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbe\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10697, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb4\x02\xb3\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9988, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9988, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10697, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10697, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9989, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xbf\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10698, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb5\x02\xb4\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9989, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9989, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10698, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10698, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid( <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9990, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc0\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10699, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb6\x02\xb5\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9990, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9990, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9991, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc1\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10699, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10699, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] getpid( <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10700, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb7\x02\xb6\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9991, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9991, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10700, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10700, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9992, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc2\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10701, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb8\x02\xb7\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9992, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9992, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10701, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10701, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10702, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb9\x02\xb8\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9993, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc3\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10702, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10702, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid()                    = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10703, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xba\x02\xb9\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9993, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9993, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] getpid( <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10703, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10703, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] getpid()                    = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9994, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc4\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10704, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbb\x02\xba\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9994, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9994, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] recvmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10704, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10704, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] getpid( <unfinished ...>
[pid  5890] getpid( <unfinished ...>
[pid  5889] <... getpid resumed>)       = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5890] sendmsg(5, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10705, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbc\x02\xbb\x02\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x18\x00\x02\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00"], iov_len=68}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9995, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc5\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid  5890] <... sendmsg resumed>)      = 68
[pid  5889] <... sendmsg resumed>)      = 96
[pid  5890] recvmsg(5 <unfinished ...>
[pid  5889] recvmsg(3 <unfinished ...>
[pid  5890] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=10705, nlmsg_pid=-2013997022}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=10705, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5889] <... recvmsg resumed>, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=9995, nlmsg_pid=5886}, {error=0, msg={nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9995, nlmsg_pid=5886}}], iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 36
[pid  5890] getpid( <unfinished ...>
[pid  5889] getpid()                    = 5886
[pid  5890] <... getpid resumed>)       = 5886
[pid  5889] sendmsg(3, {msg_name={sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, msg_namelen=12, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=9996, nlmsg_pid=5886}, "\x00\x00\x00\x00\x0b\x00\x00\x00\xc6\x07\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0 <unfinished ...>

[host] Command execution timed out after 2m30s

Crash Report: 


297/4 2026/08/15 18:16 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 87981
							output: 42
							thoughts: 840
						

Thoughts:
**My Analysis of the Program Execution and Bug Report**

Okay, so the primary objective here is to dissect the results of running this generated program, specifically in relation to the bug description provided. I'm seeing a `WARNING in qdisc_tree_reduce_backlog`, and the crucial details are `parentid != TC_H_ROOT` and the specific location within `net/sched/sch_api.c`.

The execution itself timed out after a considerable 2 minutes and 30 seconds. This immediately flags a potential issue – either a very long-running process or, more likely given the context, an infinite loop or an excessive number of iterations. The `Reproduced: false` and `ProbePassed: false` (and my confirmation that `IsProbe` is indeed false, meaning it wasn't even a probe attempt) tell me that the bug, as reported, wasn't definitively triggered or observed in this specific run.

Looking at the console output, I noted some audit denials and a `cfg80211: failed to load regulatory.db`. These are interesting side effects, but critically, there was no crash evident. This suggests the program is misbehaving rather than outright failing.

The `strace` output is where things get more illuminating. I'm seeing a continuous stream of `sendmsg` calls utilizing `AF_NETLINK` sockets. This is the kernel's mechanism for inter-process communication, and in this context, it's being used to configure network queuing disciplines (`qdisc`). Specifically, the `sfq` (Stochastic Fairness Queuing) and `htb` (Hierarchical Token Bucket) qdiscs are being pushed through. The sheer volume of these messages, and the fact they appear to be sent incessantly, strongly suggests the program is either stuck in a loop, or it's designed to perform a vast number of these operations, potentially to hit some edge case.

Now, I'm circling back to the bug description, particularly the `parentid != TC_H_ROOT` condition. This specific warning, `WARN_ON(parentid != TC_H_ROOT);` within the `qdisc_tree_reduce_backlog` function, is the core of the reported issue. It means that this function is being invoked with a non-root parent ID, which is unexpected and likely indicative of a logic error in how qdiscs are being managed or created.

Since the reproduction failed, my next steps need to be about providing actionable feedback. The `strace` snippet I'm examining shows a `sendmsg` call with `AF_NETLINK` and a message type of `0x24`. I've identified this as `RTM_NEWQDISC`, which is the Netlink message for creating a new queuing discipline. The `0x28` (`RTM_NEWTCLASS`) would be for traffic classes. The pattern here is clear: the program is aggressively creating qdiscs and classes. The *intent* is likely to provoke a race condition or uncover some deep-seated issue through sheer load.

The critical insight is that the bug is specifically about `qdisc_tree_reduce_backlog` and the `parentid` condition. Even though the reproduction failed, the *way* the program is operating, as seen in `strace`, is likely attempting to stress the qdisc management subsystem in a manner that *could* expose this bug. My task is to articulate *why* the reproduction failed and suggest improvements, perhaps by focusing the program's actions more directly on scenarios that would lead to that specific `parentid != TC_H_ROOT` warning, rather than just a general barrage of qdisc operations. I need to examine the source code of `qdisc_tree_reduce_backlog` more closely to understand the exact conditions that lead to this warning.


298/4 2026/08/15 18:16 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

299/4 2026/08/15 18:16 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 89465
							output: 39
							thoughts: 194
						

Thoughts:
**My Thought Process Unraveling the `WARN_ON_ONCE(parentid != TC_H_ROOT)` Warning**

Here's how I'm piecing together the situation around this specific warning:

I'm looking at this warning: `WARN_ON_ONCE(parentid != TC_H_ROOT);` which originates from line 797 of the code. My initial understanding is that this warning triggers under a specific condition: when `qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid))` returns NULL, meaning it couldn't find the parent queueing discipline (qdisc) based on the provided `parentid`, *and* simultaneously, this `parentid` is *not* `TC_H_ROOT`.

This immediately tells me something is out of sync. If the lookup fails but `parentid` isn't the root, it implies that the qdisc I'm expecting to be there as a parent has either been destroyed, or perhaps was never properly established, but the child qdisc I'm currently dealing with still holds a reference to it, expecting it to exist as its parent. This is a classic dangling reference scenario.

The bug description points to a specific call path: `sfq_rehash` leading to `sfq_perturbation`, which then calls `qdisc_tree_reduce_backlog`. This is a crucial clue. I notice that `sfq_perturbation` is initiated from a timer. This is where the timing aspect of the bug really starts to solidify in my mind.

The core of my hypothesis now revolves around this timer. What happens if the parent qdisc is destroyed *while* this `sfq_perturbation` timer is active and about to execute? Or, what if the child qdisc itself is being moved or "grafted" to a different parent, but the timer, still referencing the *old* parent, fires? In either of these scenarios, the timer callback (`sfq_perturbation`) would find itself in the problematic state: trying to operate on a qdisc that no longer exists or is no longer its parent, leading to the failed lookup and thus the warning.

My next step, therefore, is to dive deeper into the implementation of `sfq_perturbation` itself. I need to examine its logic, specifically how it interacts with parent qdiscs and how it handles the possibility that its parent might disappear or change during its execution. I suspect the fix will lie in ensuring that the timer's context is always valid or that the timer is properly cancelled or updated before any structural changes to the qdisc hierarchy occur that might invalidate its parent reference.


300/4 2026/08/15 18:16 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_perturbation]

Results:
map[SourceCode: 604:	static void sfq_perturbation(struct timer_list *t)
 605:	{
 606:		struct sfq_sched_data *q = timer_container_of(q, t, perturb_timer);
 607:		struct Qdisc *sch = q->sch;
 608:		spinlock_t *root_lock;
 609:		siphash_key_t nkey;
 610:		int period;
 611:	
 612:		get_random_bytes(&nkey, sizeof(nkey));
 613:		rcu_read_lock();
 614:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 615:		spin_lock(root_lock);
 616:		q->perturbation = nkey;
 617:		if (!q->filter_list && q->tail)
 618:			sfq_rehash(sch);
 619:		spin_unlock(root_lock);
 620:	
 621:		/* q->perturb_period can change under us from
 622:		 * sfq_change() and sfq_destroy().
 623:		 */
 624:		period = READ_ONCE(q->perturb_period);
 625:		if (period)
 626:			mod_timer(&q->perturb_timer, jiffies + period);
 627:		rcu_read_unlock();
 628:	}
 SourceFile:net/sched/sch_sfq.c]

301/4 2026/08/15 18:16 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 90104
							output: 39
							thoughts: 32
						

Thoughts:
**My Thought Process**

I'm trying to understand the flow of operations within the network scheduler, specifically the Stochastic Fairness Queuing (SFQ) scheduler. My current question is whether the `sfq_rehash` function, which I assume is responsible for managing or reorganizing the queues within SFQ, might be invoking the `qdisc_tree_reduce_backlog` function. To answer this, my immediate next step is to delve into the implementation of `sfq_rehash` itself. I need to examine its code to see if it contains a direct call to `qdisc_tree_reduce_backlog` or if there's an indirect dependency.


302/4 2026/08/15 18:17 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

303/4 2026/08/15 18:17 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 91374
							output: 38
							thoughts: 90
						

Thoughts:
**My Thought Process Regarding `sfq_rehash` and Packet Dropping**

Okay, so I've just encountered a situation where `sfq_rehash` is involved, and my immediate concern is its potential for packet loss. I know that `sfq_rehash` *can* indeed drop packets, and when it does, it subsequently invokes `qdisc_tree_reduce_backlog` with the number of dropped packets and their total length. This is a critical point because it tells me that the system is actively trying to manage the backlog after these drops, which is good, but it also confirms the initial loss.

Then, I considered the context in which `sfq_rehash` might be called. I realized that if it's initiated by a timer, specifically `sfq_perturbation`, it's operating asynchronously. This asynchronous nature is important to keep in mind – it means the rehash operation isn't necessarily happening in direct lockstep with packet arrival or processing, which could have implications for timing and potential race conditions, though for now, my primary focus is the dropping.

My next thought branched into what happens when the queue discipline itself is being dismantled. I reasoned that in such a scenario, `sfq_destroy` would be the relevant function. Given that I'm already tracking packet drops from `sfq_rehash`, I instinctively want to see how `sfq_destroy` handles the cleanup, especially if there's any overlap or interaction with the dropping behavior I've observed. Therefore, my immediate next step is to dive into the implementation of `sfq_destroy` to understand its behavior in this lifecycle context.


304/4 2026/08/15 18:17 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_destroy]

Results:
map[SourceCode: 765:	static void sfq_destroy(struct Qdisc *sch)
 766:	{
 767:		struct sfq_sched_data *q = qdisc_priv(sch);
 768:	
 769:		tcf_block_put(q->block);
 770:		WRITE_ONCE(q->perturb_period, 0);
 771:		timer_delete_sync(&q->perturb_timer);
 772:		sfq_free(q->ht);
 773:		sfq_free(q->slots);
 774:		kfree(q->red_parms);
 775:	}
 SourceFile:net/sched/sch_sfq.c]

305/4 2026/08/15 18:17 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 91689
							output: 37
							thoughts: 371
						

Thoughts:
**Thinking Through the Lifecycle of a Grafted/Moved Qdisc and its Perturbation Timer**

My primary concern here is the robustness of the `sfq_perturbation` timer, specifically what happens when the qdisc it's associated with (let's call it `q`) undergoes changes in its hierarchical structure – either being grafted onto a new parent, moved, or if its *current* parent is destroyed.

I understand that `sfq_destroy` itself is quite definitive: it zeros out `q->perturb_period` and then synchronously deletes the `q->perturb_timer`. This means that *after* `sfq_destroy` has completed, the perturbation timer should be dead and buried, no longer capable of firing. That's the clean case, the expected behavior.

However, the complexities arise when `q` is *not* directly being destroyed in the usual way, but rather is affected by operations on its parent or its own structural relocation.

My initial thought is about parent destruction. If a parent qdisc is destroyed, does it, by extension, destroy its children? The general rule of thumb is "yes," a parent's destruction often cascades. But this is where I need to be cautious. What if the child qdisc, `q`, is not a simple child but is instead shared or has been explicitly moved? The standard parent-child destruction might not apply in these scenarios.

I recall that `qdisc_tree_reduce_backlog` plays a role in managing qdisc structures. It references the parent via `sch->parent`. If this `sch->parent` isn't the root (`TC_H_ROOT`), it then attempts to *look up* that parent. Crucially, if the parent isn't found during this lookup, a warning is issued. This points to a potential vulnerability.

Now, let's trace the lifecycle of destruction. When a qdisc is destroyed, it's removed from the hash table. This is handled by `qdisc_hash_del`, which is called by `qdisc_destroy`. But there's a nuance: if the qdisc is being destroyed via RCU (Read-Copy-Update), `qdisc_destroy` is called *after* an RCU grace period. This is important because `qdisc_lookup_rcu` is used, and if the parent qdisc has already been removed from the hash table (i.e., after `qdisc_hash_del` has occurred), then `qdisc_lookup_rcu` on that parent would return `NULL`.

This leads me to the critical race condition I'm trying to pin down: What if `sfq_perturbation` (which I assume can run asynchronously) tries to execute *while* the parent qdisc is in the process of being destroyed? Specifically, consider a scenario where the parent has been removed from the hash table (`qdisc_hash_del`), but `sfq_destroy` hasn't yet been called on `q` itself (perhaps because `q` is being moved or is shared and thus not immediately eligible for destruction). In such a window, if `sfq_perturbation` fires, it might attempt to interact with a parent that's no longer reliably accessible or has entered an inconsistent state.

I need to re-examine `qdisc_destroy` more closely. It seems to first call `qdisc_hash_del(qdisc)` and *then* `qdisc_put(qdisc)`. The `qdisc_put` likely handles the actual memory freeing and cleanup. The interaction between `qdisc_lookup_rcu` and the timing of `qdisc_hash_del` and `qdisc_put` during parent destruction is where the potential for problems lies. If the parent is destroyed, it should, as a general principle, tear down its children. But the exact sequence and the impact on shared or moved children need to be thoroughly understood to ensure the perturbation timer behaves predictably.


306/4 2026/08/15 18:17 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_destroy]

Results:
map[SourceCode:1133:	void qdisc_destroy(struct Qdisc *qdisc)
1134:	{
1135:		if (qdisc->flags & TCQ_F_BUILTIN)
1136:			return;
1137:	
1138:		__qdisc_destroy(qdisc);
1139:	}
 SourceFile:net/sched/sch_generic.c]

307/4 2026/08/15 18:17 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 92200
							output: 38
							thoughts: 11
						

Thoughts:
**My Thought Process on `__qdisc_destroy`**

Alright, so my immediate inclination is to dive into the internals of `__qdisc_destroy`. I need to understand precisely what happens when a queueing discipline is being torn down. This involves tracing the sequence of operations, examining how resources are reclaimed, and ensuring that no lingering dependencies or memory leaks are introduced. My focus will be on the critical path of destruction, looking for any potential race conditions or edge cases that might arise during this process. I’ll be scrutinizing the deallocation of associated data structures and any critical cleanup routines to confirm the integrity of the system post-destruction.


308/4 2026/08/15 18:17 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

309/4 2026/08/15 18:17 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 92631
							output: 36
							thoughts: 70
						

Thoughts:
**My Thought Process Regarding HTB Qdisc Destruction**

Okay, so my current line of inquiry revolves around the lifecycle management of qdiscs, specifically what happens when a parent qdisc is torn down. My understanding is that when a parent qdisc is destroyed, the kernel executes a sequence of actions. First, it calls `qdisc_hash_del(qdisc)`, which I interpret as removing the qdisc from the system's hash table, effectively deregistering it. Immediately following that, it invokes `ops->destroy(qdisc)`. This `ops` pointer, as I see it, points to the specific operations table for that qdisc's type. Thus, `ops->destroy(qdisc)` would then delegate the actual destruction logic to the type-specific implementation.

Now, I'm focusing on the Hierarchical Token Bucket (HTB) qdisc as a concrete example. My initial hypothesis is that the HTB's `destroy` operation, `htb_destroy` in this case, is designed to be a cascading process. The idea here is that when the HTB itself is destroyed, it won't just vanish in isolation. Instead, it needs to responsibly clean up any child structures it manages. My intuition suggests that `htb_destroy` will recursively handle the destruction of its constituent classes. And critically, for each of these classes, if they themselves hold leaf qdiscs (think of individual traffic classes within the HTB hierarchy), then destroying the class will, in turn, trigger the destruction of those leaf qdiscs. This recursive cleanup is essential to prevent resource leaks and maintain system integrity.

To validate this hypothesis and gain a deeper understanding, my next step is to dive directly into the implementation of `htb_destroy` itself. I need to examine its code to confirm this cascading destruction mechanism and see precisely how it iterates through its classes and handles the teardown of any associated leaf qdiscs.


310/4 2026/08/15 18:17 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy]

Results:
map[SourceCode:1618:	static void htb_destroy(struct Qdisc *sch)
1619:	{
1620:		struct net_device *dev = qdisc_dev(sch);
1621:		struct tc_htb_qopt_offload offload_opt;
1622:		struct htb_sched *q = qdisc_priv(sch);
1623:		struct hlist_node *next;
1624:		bool nonempty, changed;
1625:		struct htb_class *cl;
1626:		unsigned int i;
1627:	
1628:		cancel_work_sync(&q->work);
1629:		qdisc_watchdog_cancel(&q->watchdog);
1630:		/* This line used to be after htb_destroy_class call below
1631:		 * and surprisingly it worked in 2.4. But it must precede it
1632:		 * because filter need its target class alive to be able to call
1633:		 * unbind_filter on it (without Oops).
1634:		 */
1635:		tcf_block_put(q->block);
1636:	
1637:		for (i = 0; i < q->clhash.hashsize; i++) {
1638:			hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
1639:				tcf_block_put(cl->block);
1640:				cl->block = NULL;
1641:			}
1642:		}
1643:	
1644:		do {
1645:			nonempty = false;
1646:			changed = false;
1647:			for (i = 0; i < q->clhash.hashsize; i++) {
1648:				hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
1649:							  common.hnode) {
1650:					bool last_child;
1651:	
1652:					if (!q->offload) {
1653:						htb_destroy_class(sch, cl);
1654:						continue;
1655:					}
1656:	
1657:					nonempty = true;
1658:	
1659:					if (cl->level)
1660:						continue;
1661:	
1662:					changed = true;
1663:	
1664:					last_child = htb_parent_last_child(cl);
1665:					htb_destroy_class_offload(sch, cl, last_child,
1666:								  true, NULL);
1667:					qdisc_class_hash_remove(&q->clhash,
1668:								&cl->common);
1669:					if (cl->parent)
1670:						cl->parent->children--;
1671:					if (last_child)
1672:						htb_parent_to_leaf(sch, cl, NULL);
1673:					htb_destroy_class(sch, cl);
1674:				}
1675:			}
1676:		} while (changed);
1677:		WARN_ON(nonempty);
1678:	
1679:		qdisc_class_hash_destroy(&q->clhash);
1680:		__qdisc_reset_queue(&q->direct_queue);
1681:	
1682:		if (q->offload) {
1683:			offload_opt = (struct tc_htb_qopt_offload) {
1684:				.command = TC_HTB_DESTROY,
1685:			};
1686:			htb_offload(dev, &offload_opt);
1687:		}
1688:	
1689:		if (!q->direct_qdiscs)
1690:			return;
1691:		for (i = 0; i < q->num_direct_qdiscs && q->direct_qdiscs[i]; i++)
1692:			qdisc_put(q->direct_qdiscs[i]);
1693:		kfree(q->direct_qdiscs);
1694:	}
 SourceFile:net/sched/sch_htb.c]

311/4 2026/08/15 18:17 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 93894
							output: 16
							thoughts: 1732
						

Thoughts:
**My Thought Process on the HTB/SFQ Race Condition**

Here's what's been going through my head as I analyze this potential race condition between HTB and SFQ, specifically concerning the `htb_destroy_class` and `qdisc_put` interactions with SFQ's perturbation timer.

Initially, I saw `htb_destroy_class` calling `qdisc_put(cl->leaf.q)`. My immediate thought was about the reference counting mechanism. I know `qdisc_put` eventually leads to `qdisc_destroy` if the reference count hits zero. However, I also recognized that the child qdisc (in this case, SFQ) might be shared or have other outstanding references, meaning it wouldn't necessarily be destroyed immediately upon that `qdisc_put` call. This is where the complexity starts.

Then, my focus shifted to how SFQ itself operates, particularly its perturbation timer. I recalled that `qdisc_tree_reduce_backlog` is invoked from `sfq_rehash`, which in turn is triggered by the `sfq_perturbation` timer. This connection immediately raised a red flag: if the `sfq_perturbation` timer fires, it implies that `sfq_destroy` hasn't yet completed its `timer_delete_sync(&q->perturb_timer)` call. This means the child SFQ qdisc is still active, and crucially, its timer is still running.

Now, let's consider the scenario where the parent qdisc (like HTB) is being destroyed. During its destruction, it's removed from the qdisc hash table via `qdisc_hash_del(qdisc)` within `__qdisc_destroy`. Following this, `htb_destroy` is called, which proceeds to destroy its classes. This is where `htb_destroy_class` comes in, ultimately calling `qdisc_put` on the child qdisc.

Here's the crux of the potential race: If the SFQ perturbation timer fires *after* the parent HTB qdisc has been removed from the hash table (`qdisc_hash_del(parent)`) but *before* the `timer_delete_sync` in `sfq_destroy` has completed, then `qdisc_tree_reduce_backlog` will be executed. When `qdisc_tree_reduce_backlog` attempts to look up the parent qdisc using `qdisc_lookup_rcu`, it will fail because the parent has already been removed from the hash table. This failure to find the parent will then trigger the `WARN_ON_ONCE(parentid != TC_H_ROOT)` condition, which is exactly what we're trying to understand and potentially reproduce.

To solidify this understanding, I decided to lay out the sequence of events as I envisioned them for a race condition:

*   **Thread 1 (User Space/Kernel Deletion):** This thread initiates the deletion of the parent qdisc (e.g., `tc qdisc del dev eth0 root`). This leads to `qdisc_destroy(parent)`, then `qdisc_hash_del(parent)`, and subsequently `ops->destroy(parent)` which calls `htb_destroy`. Inside `htb_destroy`, `htb_destroy_class` is invoked, resulting in `qdisc_put(child)`. This eventually calls `qdisc_destroy(child)`, which includes `qdisc_hash_del(child)`, and finally `ops->destroy(child)` leading to `sfq_destroy`. The critical step here is `timer_delete_sync(&q->perturb_timer)`.

*   **Thread 2 (SoftIRQ/Timer Callback):** Simultaneously, the `sfq_perturbation` timer fires. This triggers `sfq_rehash(sch)`, which then calls `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`. Inside `qdisc_tree_reduce_backlog`, the code retrieves the `parentid` and then uses `qdisc_lookup_rcu` to find the parent.

The race occurs when Thread 1 has executed `qdisc_hash_del(parent)` but has not yet completed `timer_delete_sync(&q->perturb_timer)` in `sfq_destroy`, while Thread 2's timer callback fires and executes `qdisc_lookup_rcu`. Because Thread 1 has removed the parent from the hash, `qdisc_lookup_rcu` in Thread 2 will return `NULL`. This `NULL` return value, when `parentid` is not `TC_H_ROOT`, leads to the `WARN_ON_ONCE` being hit.

I then considered the conditions required to trigger this specific race:
1.  A parent qdisc (like HTB) must exist.
2.  A child qdisc (like SFQ) with a `perturb_period` greater than zero is needed, as this enables the perturbation timer.
3.  Crucially, the child SFQ qdisc must have packets queued. My initial thought was that `sfq_rehash` only calls `qdisc_tree_reduce_backlog` if packets were dropped. However, by examining the `qdisc_tree_reduce_backlog` function, I realized it is called even when `dropped == 0`, as long as `sfq_rehash` is invoked.
4.  Upon further inspection of `sfq_perturbation`, I found it only calls `sfq_rehash` if `!q->filter_list && q->tail`. This `q->tail` condition means the SFQ qdisc *must* have at least one packet queued for `sfq_rehash` to be called.

So, to reliably reproduce this, the steps I outlined are:
1.  Set up an HTB root qdisc.
2.  Create an HTB class under the root.
3.  Attach an SFQ qdisc to this HTB class, ensuring `perturb_period` is set to a small value (e.g., 1 second) to make the timer firing more likely in a test scenario.
4.  Enqueue at least one packet into the SFQ qdisc. A simple way to achieve this is by setting the HTB rate to zero or a very low value, which will cause packets to queue in SFQ.
5.  While a packet is queued and the SFQ timer is active, initiate the deletion of the parent HTB root qdisc.

My analysis then turned to the syzkaller reproducer. I looked at its `strace` output, expecting to see packet transmissions that would enqueue data into the SFQ. However, the `strace` I examined only showed netlink communication, not actual packet sending to network interfaces. This led me to question if the syzkaller was indeed triggering the race or if the race was more subtle. I noted that if no packets are queued, `q->tail` would be NULL, preventing `sfq_rehash` and thus the race condition. I then spotted a hint about a packet socket in the `strace` and considered the possibility of packet transmission through that.

At this point, my conclusion is that while the theoretical race condition is clear, and the necessary conditions are identified, the exact mechanism to trigger it reliably might require careful timing or a specific setup, potentially different from what was initially inferred from a limited `strace` log. This leads me to believe that a dedicated C program might be the most effective way to engineer and verify this race condition.


312/4 2026/08/15 18:18 tool get-toolkit
0m Args:
map[Name:race]

Results:
map[Toolkit:// Copyright 2026 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.

// IMPORTANT: Do not copy the macros or definitions below directly into your reproducer.
// Instead, add the following line to your reproducer:
// #include "race_toolkit.h"

// --- Race Condition Toolkit ---
// Macros and snippets for CPU pinning, memory barriers, and userfaultfd.

#define _GNU_SOURCE
#include <errno.h>
#include <fcntl.h>
#include <linux/futex.h>
#include <linux/userfaultfd.h>
#include <poll.h>
#include <pthread.h>
#include <sched.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/syscall.h>
#include <time.h>
#include <unistd.h>

// Unbuffered I/O: Ensure logs are written immediately.
#define SETUP_UNBUFFERED_IO() setvbuf(stdout, NULL, _IONBF, 0)

// CPU Pinning: Pin the current thread to a specific CPU core.
#define PIN_TO_CPU(cpu)                                                \
	do {                                                           \
		cpu_set_t mask;                                        \
		CPU_ZERO(&mask);                                       \
		CPU_SET(cpu, &mask);                                   \
		if (sched_setaffinity(0, sizeof(mask), &mask) == -1) { \
			perror("sched_setaffinity");                   \
		}                                                      \
	} while (0)

// Memory Barrier: Ensure memory ordering.
#define MB() __atomic_thread_fence(__ATOMIC_SEQ_CST)

// Spin-wait Barrier: Wait until a memory location has a specific value.
// Best for tight race windows (low latency, no context switches).
#define WAIT_ON(addr, val)                                               \
	do {                                                             \
		while (__atomic_load_n(addr, __ATOMIC_ACQUIRE) != (val)) \
			;                                                \
	} while (0)

// Signal: Set a memory location to a specific value to release a WAIT_ON.
#define SIGNAL(addr, val) __atomic_store_n(addr, val, __ATOMIC_RELEASE)

// --- Timing Primitives ---
// Robust timing loops in VM environments (using CLOCK_MONOTONIC to avoid time(NULL) jumps).

static inline double timer_elapsed_sec(struct timespec* start)
{
	struct timespec now;
	if (clock_gettime(CLOCK_MONOTONIC, &now) == -1) {
		perror("clock_gettime(CLOCK_MONOTONIC) elapsed");
		exit(1);
	}
	return (double)(now.tv_sec - start->tv_sec) + (double)(now.tv_nsec - start->tv_nsec) / 1e9;
}

// Initialize a monotonic timer variable.
#define TIMER_START(t)                                          \
	struct timespec t;                                      \
	if (clock_gettime(CLOCK_MONOTONIC, &t) == -1) {         \
		perror("clock_gettime(CLOCK_MONOTONIC) start"); \
		exit(1);                                        \
	}

// Check if the elapsed time since 't' is less than 'sec' seconds.
#define TIMER_NOT_EXPIRED(t, sec) (timer_elapsed_sec(&(t)) < (double)(sec))

// Futex-based Event: Shared with syzkaller executor.
// Best for general synchronization or longer waits to save CPU.
typedef struct {
	int state;
} event_t;

static void event_init(event_t* ev)
{
	ev->state = 0;
}
static void event_reset(event_t* ev)
{
	ev->state = 0;
}

static void event_set(event_t* ev)
{
	if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) {
		fprintf(stderr, "event already set\n");
		exit(1);
	}
	__atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
	syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
	while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
		syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

// userfaultfd setup: Register a memory range for page fault handling.
static int setup_uffd(void* addr, size_t len)
{
	int uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK);
	if (uffd == -1)
		return -1;
	struct uffdio_api api = {.api = UFFD_API, .features = 0};
	if (ioctl(uffd, UFFDIO_API, &api) == -1) {
		close(uffd);
		return -1;
	}
	struct uffdio_register reg = {
	    .range = {.start = (uintptr_t)addr, .len = len},
	    .mode = UFFDIO_REGISTER_MODE_MISSING};
	if (ioctl(uffd, UFFDIO_REGISTER, &reg) == -1) {
		close(uffd);
		return -1;
	}
	return uffd;
}

// --- Guidance on Usage ---
// 1. Use WAIT_ON/SIGNAL for tight race conditions to avoid scheduling overhead.
// 2. Use event_t (futexes) for general coordination or when waiting for longer periods.
// 3. Always use PIN_TO_CPU to increase race probability on multi-core systems.
// 4. Use setup_uffd to register a memory range for page fault handling. This allows you to
//    pause a thread accessing that memory until you handle the fault, creating a reliable
//    and controllable race window.
// 5. Call SETUP_UNBUFFERED_IO() at the start of main() to ensure that logs are printed
//    immediately. This is essential for understanding the exact interleaving of events
//    when debugging race conditions.
// 6. For timing-based loops (e.g., running a race for 10 seconds), do NOT use time(NULL)
//    or loops relying on real-time clocks, as VM clocks are highly unreliable and can fail or drift.
//    Instead, use the robust monotonic timing primitives TIMER_START and TIMER_NOT_EXPIRED:
//        TIMER_START(start);
//        while (TIMER_NOT_EXPIRED(start, 10.0)) {
//            // Your race logic here
//        }
]

313/4 2026/08/15 18:18 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 97308
							output: 38
							thoughts: 155
						

Thoughts:
**My Thought Process Regarding the Race Condition**

Okay, so I've been digging into this bug, and I've pinpointed the core issue: it's a race condition. Specifically, it's happening between the `sfq_perturbation` timer and the `qdisc_destroy` function. This means that under certain circumstances, these two operations can interfere with each other, leading to the unexpected behavior.

To actually reproduce this, I've outlined a sequence of steps that should reliably trigger the bug. First, I need to set up a dummy interface. This gives me a clean slate to work with. Then, on this interface, I'll add an HTB root qdisc. Following that, I'll add an HTB class under that root. The crucial part comes next: I need to attach an SFQ qdisc to this HTB class.

Now, here's where the `sfq_perturbation` timer comes into play. The `perturb_period` setting on the SFQ qdisc is key. I initially thought setting it to 1 (second) might be sufficient. But then I started questioning the units. Is `perturb_period` in seconds? I recall looking at `sfq_change` and seeing it take `perturb_period` in seconds. However, I also remember that internally, `q->perturb_period` is stored in jiffies. This discrepancy in units is a potential source of confusion or even a part of the race itself. I need to be very careful about this conversion and how it's handled. I'll need to re-examine the `sfq_change` function in detail to confirm the exact units and conversion logic.


314/4 2026/08/15 18:18 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

315/4 2026/08/15 18:18 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 99463
							output: 508
							thoughts: 5730
						

Thoughts:
**Understanding the SFQ Perturbation Timer Race**

I've been looking into a potential race condition within the SFQ (Stochastic Fairness Queuing) scheduler, specifically involving its perturbation timer. The core of the issue appears to be a timing mismatch between when the SFQ perturbation timer fires and when its parent qdisc is destroyed.

Here's my thought process on how this race unfolds:

1.  **The Perturbation Timer:** The `sfq_perturbation` function is scheduled by a timer (`q->perturb_timer`). This timer is set using `mod_timer(&q->perturb_timer, jiffies + q->perturb_period)`. I noticed that `ctl->perturb_period` is an integer representing seconds, multiplied by HZ internally. This means the *minimum* non-zero delay for this timer is 1 second. This 1-second minimum is crucial.

2.  **The Race Window:** The problem arises when the parent qdisc (like an HTB qdisc) is destroyed concurrently with the SFQ perturbation timer firing.
    *   The timer, when it fires, starts executing `sfq_perturbation`.
    *   Inside `sfq_perturbation`, if there are packets in the queue (checked by `q->tail != NULL`), it calls `sfq_rehash`.
    *   `sfq_rehash` eventually calls `qdisc_tree_reduce_backlog`.
    *   Crucially, `qdisc_tree_reduce_backlog` calls `qdisc_lookup_rcu(parent)` to find the parent qdisc.

3.  **The Destruction Path:** Meanwhile, the parent qdisc is being destroyed. This process involves `qdisc_destroy`, which calls `qdisc_hash_del(parent)`. This `qdisc_hash_del` function removes the parent qdisc from the kernel's qdisc hash table.

4.  **The Critical Concurrency:** The race occurs if `qdisc_hash_del` executes and removes the parent from the hash table *before* `qdisc_lookup_rcu` (called from the timer's context) gets a chance to look it up.
    *   If `qdisc_lookup_rcu` is called *after* `qdisc_hash_del`, it will find that the parent qdisc is no longer in the hash table, and thus returns `NULL`.
    *   This `NULL` return triggers a `WARN_ON_ONCE(parentid != TC_H_ROOT)` because the `parentid` is now effectively invalid or unreachable, but the check expects a valid root or parent.

5.  **Why Previous Reproducers Failed:** I believe previous attempts, particularly the syzkaller reproducer, failed because they were likely creating and destroying qdiscs in a very tight loop. The SFQ perturbation timer, with its 1-second minimum delay, would never have a chance to fire. When a qdisc is destroyed *before* its associated timer is due to fire, the timer is simply canceled (`timer_delete_sync` effectively handles this by waiting for it, but if it hasn't started, it's canceled). Thus, the critical `sfq_perturbation` code path, which leads to `qdisc_tree_reduce_backlog` and the lookup, was never executed.

6.  **The Path to Reproduction:** To reliably hit this race, a reproducer needs to:
    *   Set up a chain of qdiscs: a root HTB qdisc, an HTB class, and then an SFQ qdisc attached to that class.
    *   Configure the SFQ qdisc with `perturb 1` (to ensure the 1-second delay).
    *   **Crucially, enqueue at least one packet into the SFQ qdisc.** This is necessary for `q->tail` to be non-NULL, which is a prerequisite for `sfq_rehash` to be called from `sfq_perturbation`. This can be achieved by setting a very low rate on the parent HTB class.
    *   **Wait for approximately 1 second.** This is the key step missed by rapid-looping approaches. A `usleep()` call of around 990,000 microseconds would be appropriate.
    *   Then, destroy the root qdisc.
    *   Repeating this sequence in a loop, perhaps with slight variations in the sleep time, increases the probability of hitting the exact timing window where the timer fires just as the parent qdisc is removed from the hash table.

This detailed breakdown clarifies why the race is subtle and requires precise timing, explaining the failure of simpler, faster-looping reproduction strategies.


316/4 2026/08/15 18:19 tool set-results
0m Args:
map[Feedback:The reproduction attempt failed because the generated program did not properly trigger the race condition. The bug is a race condition between the SFQ perturbation timer (`sfq_perturbation`) and the destruction of its parent qdisc (e.g., HTB).

In `sfq_perturbation`, if there are packets in the queue (`q->tail != NULL`), it calls `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent qdisc using `qdisc_lookup_rcu`. Concurrently, if the parent qdisc is being destroyed, it is removed from the qdisc hash table via `qdisc_hash_del` (called from `__qdisc_destroy`). If the timer fires exactly after the parent is removed from the hash table but before the child SFQ qdisc is destroyed (which would cancel the timer), `qdisc_lookup_rcu` returns NULL, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

To trigger this race, the reproducer must:
1. Create a parent qdisc (e.g., HTB) and a class.
2. Create an SFQ qdisc as a child of the class, with `perturb` set to 1 second (the minimum non-zero value).
3. Enqueue at least one packet into the SFQ qdisc so that `q->tail` is non-NULL (e.g., by setting the HTB rate to a very low value and sending a packet through the interface).
4. **CRITICAL**: Wait for approximately 1 second for the timer to be ready to fire.
5. Delete the parent qdisc.

The syzkaller reproducer likely failed because it executed netlink commands in a tight loop without waiting for the 1-second `perturb_period` to elapse, meaning the timer never fired. You should write a C program that sets up the qdiscs, sends a packet, sleeps for ~1 second (e.g., `usleep(995000)`), and then deletes the root qdisc, repeating this in a loop with slight timing variations to hit the race window. ProbePassed:false TerminalError: TitleMatches:false]

Results:
map[Feedback:The reproduction attempt failed because the generated program did not properly trigger the race condition. The bug is a race condition between the SFQ perturbation timer (`sfq_perturbation`) and the destruction of its parent qdisc (e.g., HTB).

In `sfq_perturbation`, if there are packets in the queue (`q->tail != NULL`), it calls `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent qdisc using `qdisc_lookup_rcu`. Concurrently, if the parent qdisc is being destroyed, it is removed from the qdisc hash table via `qdisc_hash_del` (called from `__qdisc_destroy`). If the timer fires exactly after the parent is removed from the hash table but before the child SFQ qdisc is destroyed (which would cancel the timer), `qdisc_lookup_rcu` returns NULL, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

To trigger this race, the reproducer must:
1. Create a parent qdisc (e.g., HTB) and a class.
2. Create an SFQ qdisc as a child of the class, with `perturb` set to 1 second (the minimum non-zero value).
3. Enqueue at least one packet into the SFQ qdisc so that `q->tail` is non-NULL (e.g., by setting the HTB rate to a very low value and sending a packet through the interface).
4. **CRITICAL**: Wait for approximately 1 second for the timer to be ready to fire.
5. Delete the parent qdisc.

The syzkaller reproducer likely failed because it executed netlink commands in a tight loop without waiting for the 1-second `perturb_period` to elapse, meaning the timer never fired. You should write a C program that sets up the qdiscs, sends a packet, sleeps for ~1 second (e.g., `usleep(995000)`), and then deletes the root qdisc, repeating this in a loop with slight timing variations to hit the race window. ProbePassed:false TerminalError: TitleMatches:false]

317/3 2026/08/15 18:19 action loop-controller
0m Results:
map[CapabilitiesVerified:true ContinueSignal:continue EquivalenceAnalysis: OracleFeedback:The reproduction attempt failed because the generated program did not properly trigger the race condition. The bug is a race condition between the SFQ perturbation timer (`sfq_perturbation`) and the destruction of its parent qdisc (e.g., HTB).

In `sfq_perturbation`, if there are packets in the queue (`q->tail != NULL`), it calls `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent qdisc using `qdisc_lookup_rcu`. Concurrently, if the parent qdisc is being destroyed, it is removed from the qdisc hash table via `qdisc_hash_del` (called from `__qdisc_destroy`). If the timer fires exactly after the parent is removed from the hash table but before the child SFQ qdisc is destroyed (which would cancel the timer), `qdisc_lookup_rcu` returns NULL, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

To trigger this race, the reproducer must:
1. Create a parent qdisc (e.g., HTB) and a class.
2. Create an SFQ qdisc as a child of the class, with `perturb` set to 1 second (the minimum non-zero value).
3. Enqueue at least one packet into the SFQ qdisc so that `q->tail` is non-NULL (e.g., by setting the HTB rate to a very low value and sending a packet through the interface).
4. **CRITICAL**: Wait for approximately 1 second for the timer to be ready to fire.
5. Delete the parent qdisc.

The syzkaller reproducer likely failed because it executed netlink commands in a tight loop without waiting for the 1-second `perturb_period` to elapse, meaning the timer never fired. You should write a C program that sets up the qdiscs, sends a packet, sleeps for ~1 second (e.g., `usleep(995000)`), and then deletes the root qdisc, repeating this in a loop with slight timing variations to hit the race window. ReproC: Reproduced:false ReproducedBugTitle: ReproducedCrashReport:]

318/2 2026/08/15 18:19 iteration 3
24m
319/3 2026/08/15 18:19 action If
3m Args:
map[OracleFeedback:The reproduction attempt failed because the generated program did not properly trigger the race condition. The bug is a race condition between the SFQ perturbation timer (`sfq_perturbation`) and the destruction of its parent qdisc (e.g., HTB).

In `sfq_perturbation`, if there are packets in the queue (`q->tail != NULL`), it calls `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent qdisc using `qdisc_lookup_rcu`. Concurrently, if the parent qdisc is being destroyed, it is removed from the qdisc hash table via `qdisc_hash_del` (called from `__qdisc_destroy`). If the timer fires exactly after the parent is removed from the hash table but before the child SFQ qdisc is destroyed (which would cancel the timer), `qdisc_lookup_rcu` returns NULL, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

To trigger this race, the reproducer must:
1. Create a parent qdisc (e.g., HTB) and a class.
2. Create an SFQ qdisc as a child of the class, with `perturb` set to 1 second (the minimum non-zero value).
3. Enqueue at least one packet into the SFQ qdisc so that `q->tail` is non-NULL (e.g., by setting the HTB rate to a very low value and sending a packet through the interface).
4. **CRITICAL**: Wait for approximately 1 second for the timer to be ready to fire.
5. Delete the parent qdisc.

The syzkaller reproducer likely failed because it executed netlink commands in a tight loop without waiting for the 1-second `perturb_period` to elapse, meaning the timer never fired. You should write a C program that sets up the qdiscs, sends a packet, sleeps for ~1 second (e.g., `usleep(995000)`), and then deletes the root qdisc, repeating this in a loop with slight timing variations to hit the race window.]

320/4 2026/08/15 18:19 agent strategy-refiner
3m Model:
best-expensive

Instruction:
You are an expert in Linux kernel debugging.
Refine the reproduction strategy based on feedback from previous attempts.
Analyze the technical diagnosis provided in the oracle feedback and translate it into concrete,
step-by-step instructions for the repro-generator on how to modify the code structure, alignments,
offsets, or parameters of the candidate program.

=== TOOL SELECTION GUIDELINES ===
- Prefer codesearch-definition-source and codesearch-struct-layout first for symbol lookups.
- Fall back to read-file or grepper for macros, headers, or if symbol lookup fails.

=== CRITICAL PROHIBITIONS ===
- Do NOT repeat searches for the same symbols or files. Use information you have already gathered.
- Do NOT write long explanations. Keep your reasoning short and focused on actionable changes.
- Do NOT assume a bug is fixed based on git commit history.
- If you are stuck, try a different approach or proceed to generate a candidate reproducer.
Prefer calling several tools at the same time to save round-trips.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Current Strategy: An analysis of the feedback and the kernel source code confirms that the race condition occurs between the destruction of the HTB root qdisc and the asynchronous perturbation timer of an SFQ child qdisc. 

To trigger this reliably, we must ensure that:
1. **The race window is wide enough:** We can achieve this by adding a large number of classes (e.g., 1000) to the HTB root qdisc. When the root is deleted, `htb_destroy()` will take a significant amount of time to iterate through and destroy all these classes.
2. **The SFQ queues are not empty:** The `sfq_perturbation()` timer callback only calls `sfq_rehash()` (which triggers the bug) if there are packets in the queue (`q->tail != NULL`). We must enqueue packets to each SFQ qdisc and set the HTB class rate to a very low value (e.g., `8bit`) so the packets remain queued.
3. **The timing is perfectly aligned:** The SFQ timers are set to fire 1 second after they are added. Since adding 1000 classes takes some time, the timers will fire over a window of time. We can measure the time it takes to set up the qdiscs and calculate the exact moment to delete the root qdisc so that `htb_destroy()` executes exactly in the middle of this window, guaranteeing a massive overlap.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 1000

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
    system(cmd);
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 1000 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            // Rate is extremely low (8bit) to ensure packets stay in the queue
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to each class to ensure the SFQ queues are not empty
        char buf[1000] = {0};
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 3; p++) {
                sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire over a window from ~1.0s to ~1.0s + elapsed_us.
        // We calculate the sleep time to delete the root qdisc exactly in the middle of this window.
        long sleep_us = 1000000 - (elapsed_us / 2) - 10000 + (rand_r(&seed) % 50000) - 25000;
        
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        // 4. Delete the root qdisc (triggers the race while timers are firing)
        sprintf(cmd, "tc qdisc del dev %s root >/dev/null 2>&1", ifname);
        system(cmd);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```
Feedback: The reproduction attempt failed because the generated program did not properly trigger the race condition. The bug is a race condition between the SFQ perturbation timer (`sfq_perturbation`) and the destruction of its parent qdisc (e.g., HTB).

In `sfq_perturbation`, if there are packets in the queue (`q->tail != NULL`), it calls `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent qdisc using `qdisc_lookup_rcu`. Concurrently, if the parent qdisc is being destroyed, it is removed from the qdisc hash table via `qdisc_hash_del` (called from `__qdisc_destroy`). If the timer fires exactly after the parent is removed from the hash table but before the child SFQ qdisc is destroyed (which would cancel the timer), `qdisc_lookup_rcu` returns NULL, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

To trigger this race, the reproducer must:
1. Create a parent qdisc (e.g., HTB) and a class.
2. Create an SFQ qdisc as a child of the class, with `perturb` set to 1 second (the minimum non-zero value).
3. Enqueue at least one packet into the SFQ qdisc so that `q->tail` is non-NULL (e.g., by setting the HTB rate to a very low value and sending a packet through the interface).
4. **CRITICAL**: Wait for approximately 1 second for the timer to be ready to fire.
5. Delete the parent qdisc.

The syzkaller reproducer likely failed because it executed netlink commands in a tight loop without waiting for the 1-second `perturb_period` to elapse, meaning the timer never fired. You should write a C program that sets up the qdiscs, sends a packet, sleeps for ~1 second (e.g., `usleep(995000)`), and then deletes the root qdisc, repeating this in a loop with slight timing variations to hit the race window.

Reply:
An analysis of the feedback and the kernel source code confirms that the race condition occurs between the destruction of the HTB root qdisc and the asynchronous perturbation timer of an SFQ child qdisc.

To trigger this reliably, we must ensure that:
1. **The race window is wide enough:** We can achieve this by adding a large number of classes (e.g., 100) to the HTB root qdisc. When the root is deleted, `htb_destroy()` will take a significant amount of time to iterate through and destroy all these classes.
2. **The SFQ queues are not empty:** The `sfq_perturbation()` timer callback only calls `sfq_rehash()` (which triggers the bug) if there are packets in the queue (`q->tail != NULL`). We must enqueue packets to each SFQ qdisc. By setting the HTB class rate to a very low value (e.g., `8bit`) and sending multiple packets, we guarantee they remain queued.
3. **The timing is perfectly aligned:** The SFQ timers are set to fire exactly 1 second after they are added. Since adding 100 classes takes some time, the timers will fire sequentially over a window of time. We measure the time it takes to set up the qdiscs and calculate the exact moment to delete the root qdisc so that `htb_destroy()` executes exactly in the middle of this window, guaranteeing a massive overlap.
4. **Fast and precise deletion:** Using `system("tc qdisc del ...")` introduces unpredictable delays due to `fork()` and `exec()`. We use a raw netlink socket to send the `RTM_DELQDISC` command directly, which is instantaneous and synchronous.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 100

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    delete_qdisc(ifindex);
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 100 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            // Rate is extremely low (8bit) to ensure packets stay in the queue
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to each class to ensure the SFQ queues are not empty
        char pkt[100] = {0};
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 5; p++) {
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // They were armed sequentially during the tc -batch execution.
        // We sleep for 1 second minus the time it took to setup, plus a random jitter
        // to wake up exactly when the timers are firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = 0;
            if (elapsed_us > 0) {
                jitter = rand_r(&seed) % (elapsed_us / 2 + 1);
            }
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```

321/5 2026/08/15 18:19 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 6070
							output: 38
							thoughts: 1494
						

Thoughts:
**The Quest to Replicate a Network Scheduler Warning**

I'm on a mission to reproduce a very specific warning message: `WARN_ON_ONCE(parentid != TC_H_ROOT)` originating from the `qdisc_tree_reduce_backlog` function in `net/sched/sch_api.c`. My understanding is that this warning occurs when `qdisc_lookup_rcu` returns `NULL` under a particular race condition. This race seems to be triggered when the `sfq_perturbation` timer fires, initiating a rehash (`sfq_rehash`) which then calls `qdisc_tree_reduce_backlog`. The crux of the problem appears to be that this timer is firing precisely when the parent queueing discipline (qdisc) is in the process of being destroyed.

I've received some crucial feedback on how to achieve this. Apparently, my previous attempt with `syzkaller` might have failed because it was executing netlink commands in such a rapid loop that it never allowed the 1-second `perturb_period` to actually elapse, thereby preventing the timer from ever firing. The suggestion is to craft a C program that meticulously sets up the necessary qdiscs, sends a single packet, then deliberately pauses for approximately 1 second (using `usleep(995000)` as an example), and *then* proceeds to delete the root qdisc. The idea is to repeat this entire sequence in a loop, introducing slight variations in the sleep timing to effectively "catch" the race window.

Now, I'm reflecting on my prior reproducer. I *thought* I was incorporating a sleep mechanism:

```c
        // 3. The timers fire over a window from ~1.0s to ~1.0s + elapsed_us.
        // We calculate the sleep time to delete the root qdisc exactly in the middle of this window.
        long sleep_us = 1000000 - (elapsed_us / 2) - 10000 + (rand_r(&seed) % 50000) - 25000;
```

But this brings up questions. Was my `tc -batch` command too slow to execute? Did the presence of 1000 classes excessively prolong its execution? Or was my sleep calculation simply flawed?

To address this, I'm considering simplifying. I could potentially use `libmnl` or even raw netlink sockets for faster operations. Alternatively, I could stick with `tc` but drastically reduce the number of classes. A minimal approach might involve just one class and a tight loop of creating and deleting qdiscs, interspersed with a carefully timed sleep.

Actually, if I simplify to just one class using `tc`, the setup could look like this:

```bash
tc qdisc add dev dummy0 root handle 1: htb default 1
tc class add dev dummy0 parent 1: classid 1:1 htb rate 8bit
tc qdisc add dev dummy0 parent 1:1 handle 2: sfq perturb 1
```

After this, I'd send a packet, then sleep for roughly a second, and finally execute `tc qdisc del dev dummy0 root`. Repeating this in a loop with variations in the sleep duration around the one-second mark seems like a viable path.

However, I'm still contemplating the overhead of `tc`. It might be more robust to use raw netlink for the setup or at least measure the actual execution time of `system()` calls. On second thought, if I'm using only one class, `tc` should be fast enough. Let's try using `system()` with a single class.

The code snippet I'm envisioning would be something like:

```c
        sprintf(cmd, "tc qdisc add dev %s root handle 1: htb default 1", ifname);
        system(cmd);
        sprintf(cmd, "tc class add dev %s parent 1: classid 1:1 htb rate 8bit", ifname);
        system(cmd);
        sprintf(cmd, "tc qdisc add dev %s parent 1:1 handle 2: sfq perturb 1", ifname);
        system(cmd);
```

I'm also recalling that the `sfq_perturbation` timer is configured based on `q->perturb_period * HZ`. So, `perturb 1` translates to a 1-second interval. My loop using `tc` might look like this:

```c
    while (1) {
        system("tc qdisc add dev dummy0 root handle 1: htb default 1");
        system("tc class add dev dummy0 parent 1: classid 1:1 htb rate 8bit");
        system("tc qdisc add dev dummy0 parent 1:1 handle 2: sfq perturb 1");

        // send packet
        sendto(fd, buf, 100, 0, (struct sockaddr *)&sall, sizeof(sall));

        // sleep around 1 second
        usleep(990000 + (rand() % 20000));

        system("tc qdisc del dev dummy0 root");
    }
```

But then the question arises: is this loop fast enough to actually trigger the race condition? The race window is notoriously small, occurring between `qdisc_hash_del` and `qdisc_destroy` of the child qdisc. To widen this window, I'm thinking about introducing multiple classes. This would make the `htb_destroy` operation take longer.

Perhaps around 50 classes would be a good starting point:

```c
        FILE *bf = fopen(batch_file, "w");
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= 50; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        system("tc -batch ...");
```

If I'm using 50 classes, `tc -batch` might take roughly 10-20 milliseconds to execute. Then, I'd send 50 packets. Following that, the sleep would be timed as `1000000 - elapsed_us + offset`.

Wait, I need to re-examine when the timer is actually armed. It's not simply set up at the beginning. `sfq_init` calls `qdisc_watchdog_init`, and crucially, `sfq_change` is responsible for calling `qdisc_watchdog_schedule_ns` if `perturb_period` is configured. I need to look closer at `sfq_change` in `net/sched/sch_sfq.c` for a definitive understanding.


322/5 2026/08/15 18:19 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

323/5 2026/08/15 18:19 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 9564
							output: 39
							thoughts: 1112
						

Thoughts:
**My Thought Process on Investigating a Potential Race Condition in SFQ Perturbation**

I've been diving into the `sfq_change` function and noticed its interaction with timers, specifically how `mod_timer` is used to schedule the `perturb_timer`. It's set using `jiffies + q->perturb_period`, where `q->perturb_period` is derived from `ctl->perturb_period * HZ`. My initial thought was about the minimum interval for perturbation. The `tc` command interface for `perturb` takes an integer value, which, as I've confirmed, represents seconds. This means `ctl->perturb_period` itself is in seconds, and consequently, `q->perturb_period` also ends up being at least one second. This realization immediately posed a limitation: I can't directly set a perturbation period of less than one second through the standard `tc` interface.

This limitation led me to consider how I might actually *trigger* a race condition. The core idea is to exploit the time between sending a packet and the perturbation timer firing. So, my first approach was to outline a C program that would encapsulate this sequence. The plan was to:

1.  Set up the necessary `qdisc` hierarchy: an HTB root with a default class, and then an SFQ qdisc as a child of that HTB class.
2.  Send a packet through the network device.
3.  Immediately follow up with a delay of approximately one second, aiming to land just before the perturbation timer fires.
4.  Finally, delete the root qdisc.

The initial draft of the C code looked something like this:

```c
        system("tc qdisc add dev dummy0 root handle 1: htb default 1");
        system("tc class add dev dummy0 parent 1: classid 1:1 htb rate 8bit");
        system("tc qdisc add dev dummy0 parent 1:1 handle 2: sfq perturb 1");

        // send packet
        sendto(fd, buf, 100, 0, (struct sockaddr *)&sall, sizeof(sall));

        // sleep around 1 second
        usleep(990000 + (rand() % 20000));

        system("tc qdisc del dev dummy0 root");
```

However, as I reviewed this, a new concern arose: the `system("tc qdisc del dev dummy0 root")` call. Executing external commands via `system()` introduces its own overhead and timing variability. This could easily drift the deletion time enough to miss the critical race window I'm trying to hit, especially if `tc` takes 5-10 milliseconds to process the deletion.

To gain precise control over the timing of the qdisc deletion, I immediately thought of using raw Netlink. This would allow me to craft and send the deletion message directly, minimizing any extraneous delays. I recalled that deleting a qdisc via Netlink is relatively straightforward. The necessary Netlink message structure involves `nlmsghdr` and `tcmsg`.

My initial mental model for the Netlink request looked like this:

```c
struct {
    struct nlmsghdr n;
    struct tcmsg t;
    char buf[256]; // Might not be needed for delete, but good to remember it exists
} req;
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
req.n.nlmsg_flags = NLM_F_REQUEST;
req.n.nlmsg_type = RTM_DELQDISC;
req.t.tcm_family = AF_UNSPEC;
req.t.tcm_ifindex = ifindex;
req.t.tcm_parent = TC_H_ROOT;
req.t.tcm_handle = TC_H_MAKE(1, 0); // This is the handle for the root qdisc
```

I then proceeded to think about how to encapsulate this into a reusable helper function for Netlink message transmission. I sketched out the function signature and the core logic for constructing the deletion request:

```c
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>

int delete_qdisc(int nl_fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0}; // Initialize to zero

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC; // Or AF_INET if specific
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = TC_H_MAKE(1, 0); // The root qdisc handle

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK }; // Standard Netlink address
    return sendto(nl_fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
}
```

At this point, I paused to verify my understanding of `TC_H_MAKE(1, 0)`. I recalled the macro definition: `#define TC_H_MAKE(maj,min) (((maj)&TC_H_MAJ_MASK)|((min)&TC_H_MIN_MASK))`. Given `TC_H_MAJ_MASK` is `0xFFFF0000` and `TC_H_MIN_MASK` is `0x0000FFFF`, `TC_H_MAKE(1, 0)` would indeed result in `0x00010000`. However, I then remembered a crucial detail: `tc qdisc del dev dummy0 root` often works *without* specifying the handle, as the `TC_H_ROOT` parent alone is sufficient to identify the root qdisc for deletion. This is a simpler path. I then questioned if using `tcm_handle = 0` might be the correct approach for deleting the root qdisc directly, given that the `tc` command itself doesn't require a handle when deleting the root. This led me to consider verifying this behavior.


324/5 2026/08/15 18:19 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:tc_get_qdisc]

Results:
map[SourceCode:1541:	static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1542:				struct netlink_ext_ack *extack)
1543:	{
1544:		struct net *net = sock_net(skb->sk);
1545:		struct tcmsg *tcm = nlmsg_data(n);
1546:		struct nlattr *tca[TCA_MAX + 1];
1547:		struct net_device *dev;
1548:		int err;
1549:	
1550:		err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,
1551:					     rtm_tca_policy, extack);
1552:		if (err < 0)
1553:			return err;
1554:	
1555:		dev = __dev_get_by_index(net, tcm->tcm_ifindex);
1556:		if (!dev)
1557:			return -ENODEV;
1558:	
1559:		netdev_lock_ops(dev);
1560:		err = __tc_get_qdisc(skb, n, extack, dev, tca, tcm);
1561:		netdev_unlock_ops(dev);
1562:	
1563:		return err;
1564:	}
 SourceFile:net/sched/sch_api.c]

325/5 2026/08/15 18:19 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 11110
							output: 39
							thoughts: 21
						

Thoughts:
**My Thought Process for `tc_modify_qdisc` and `tc_del_qdisc`**

My initial instinct when encountering a need to manipulate traffic control queuing disciplines (qdiscs) is to explore the existing tools for modification and deletion. My immediate thought is to investigate `tc_modify_qdisc` and `tc_del_qdisc`.

My reasoning here is straightforward:

*   **`tc_modify_qdisc`**: If my objective is to alter the parameters or behavior of an *existing* qdisc – perhaps to adjust bandwidth, change a scheduling algorithm, or modify buffer sizes – then a command specifically designed for modification is the most direct and efficient route. I'd be looking for something that allows me to target a specific qdisc instance and apply a set of new configurations without having to tear down and rebuild it entirely. This would ideally be less disruptive to ongoing traffic.

*   **`tc_del_qdisc`**: Conversely, if the qdisc is no longer needed, or if I'm planning to replace it with a completely different configuration, then a deletion command is the appropriate tool. This would cleanly remove the existing qdisc from the network interface.

My mental model, informed by my expertise, suggests that these commands would likely require arguments to identify the specific network interface and the qdisc in question. I'd anticipate needing to specify the parent qdisc (if it's not the root) and potentially the handle of the qdisc itself.

Therefore, my first investigative step is to confirm if these specific tools, `tc_modify_qdisc` and `tc_del_qdisc`, exist and understand their syntax and capabilities. If they do, they represent the primary avenues for achieving my goals of altering or removing qdiscs. If they don't exist as standalone commands, my next thought would be to look for how these operations are handled within the broader `tc` command-line utility itself, perhaps through specific flags or subcommands associated with `tc qdisc replace` or `tc qdisc delete`.


326/5 2026/08/15 18:19 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:tc_modify_qdisc]

Results:
map[SourceCode:1796:	/*
1797:	 * Create/change qdisc.
1798:	 */
1799:	static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1800:				   struct netlink_ext_ack *extack)
1801:	{
1802:		struct net *net = sock_net(skb->sk);
1803:		struct nlattr *tca[TCA_MAX + 1];
1804:		struct net_device *dev;
1805:		struct tcmsg *tcm;
1806:		int err;
1807:	
1808:		err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,
1809:					     rtm_tca_policy, extack);
1810:		if (err < 0)
1811:			return err;
1812:	
1813:		request_qdisc_module(tca[TCA_KIND]);
1814:	
1815:		tcm = nlmsg_data(n);
1816:		dev = __dev_get_by_index(net, tcm->tcm_ifindex);
1817:		if (!dev)
1818:			return -ENODEV;
1819:	
1820:		netdev_lock_ops(dev);
1821:		err = __tc_modify_qdisc(skb, n, extack, dev, tca, tcm);
1822:		netdev_unlock_ops(dev);
1823:	
1824:		return err;
1825:	}
 SourceFile:net/sched/sch_api.c]

327/5 2026/08/15 18:19 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 11636
							output: 39
							thoughts: 22
						

Thoughts:
**My Thought Process for Analyzing `__tc_modify_qdisc` and `tc_del_qdisc`**

My initial impulse when encountering a situation requiring network traffic control manipulation is to first delve into the core functionalities that allow for modifying and deleting existing queueing disciplines (qdiscs). Therefore, my immediate mental checklist points towards exploring `__tc_modify_qdisc` and `tc_del_qdisc`.

I'm looking to understand the precise mechanics of how these functions operate within the traffic control subsystem. Specifically, I want to ascertain:

*   **`__tc_modify_qdisc`:**
    *   What are its exact parameters and what do they signify in terms of identifying the target qdisc and the nature of the modification?
    *   What are the underlying kernel mechanisms it leverages to achieve a modification? Is it a complete replacement, an in-place alteration, or something else entirely?
    *   What are the potential side effects or dependencies it might have on other qdiscs or network interfaces?
    *   How does it handle cases where the specified qdisc doesn't exist, or if the modification is invalid? Error handling and return codes are crucial here.
    *   Does it operate at a user-space or kernel-space level, and what are the implications for performance and atomicity?

*   **`tc_del_qdisc`:**
    *   Similar to modification, what are the specific arguments needed to pinpoint the qdisc for deletion?
    *   How does it ensure that the qdisc being deleted is actually the intended one and not something critical?
    *   What is the process of unlinking and freeing the qdisc's resources?
    *   Does it have any special considerations for qdiscs that have child qdiscs, or if other network entities are currently referencing it?
    *   What are the error conditions it guards against (e.g., trying to delete a non-existent qdisc, or a qdisc that's still in use)?
    *   Again, the user-space vs. kernel-space distinction and its impact on the deletion operation are important to consider.

By thoroughly examining these two functions, I aim to build a solid foundation for understanding how I can programmatically control the network's queuing behavior. This will inform subsequent steps, whether it involves implementing custom traffic shaping policies, debugging existing configurations, or developing more sophisticated network management tools. My goal is to gain a deep, granular understanding of these fundamental building blocks.


328/5 2026/08/15 18:20 tool codesearch-definition-source
0m Error:
log-in to see details

Args:
map[ContextFile:net/sched/sch_api.c Name:tc_del_qdisc]

Results:
map[SourceCode: SourceFile:]

329/5 2026/08/15 18:20 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 11702
							output: 36
							thoughts: 42
						

Thoughts:
**My Thought Process on Tracking `RTM_DELQDISC` Handling**

Okay, so I'm trying to figure out precisely where in the code the kernel handles the deletion of a queuing discipline (qdisc), specifically when it receives an `RTM_DELQDISC` netlink message. My initial hunch is that `tc_get_qdisc` might be involved, given its name and its role in qdisc management. However, I'm not entirely confident that it's the *specific* function responsible for the *deletion* operation. It's more likely involved in *retrieving* or *identifying* a qdisc, which is a prerequisite for deletion, but not the deletion itself.

To confirm, my next logical step is to perform a more direct search. I'll use `grep` to look for `RTM_DELQDISC` across the relevant kernel source files. This will allow me to see exactly which functions are called in response to this specific message type, and that should pinpoint the exact handler.


330/5 2026/08/15 18:20 tool grepper
0m Args:
map[Expression:RTM_DELQDISC PathPrefix:net/sched/sch_api.c]

Results:
map[Output:net/sched/sch_api.c=1022=static int qdisc_notify(struct net *net, struct sk_buff *oskb,
--
net/sched/sch_api.c-1038-		if (tc_fill_qdisc(skb, old, clid, portid, n->nlmsg_seq,
net/sched/sch_api.c:1039:				  0, RTM_DELQDISC, extack) < 0)
net/sched/sch_api.c-1040-			goto err_out;
--
net/sched/sch_api.c=1471=static int __tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1522-
net/sched/sch_api.c:1523:	if (n->nlmsg_type == RTM_DELQDISC) {
net/sched/sch_api.c-1524-		if (!clid) {
--
net/sched/sch_api.c=2500=static const struct rtnl_msg_handler psched_rtnl_msg_handlers[] __initconst = {
net/sched/sch_api.c-2501-	{.msgtype = RTM_NEWQDISC, .doit = tc_modify_qdisc},
net/sched/sch_api.c:2502:	{.msgtype = RTM_DELQDISC, .doit = tc_get_qdisc},
net/sched/sch_api.c-2503-	{.msgtype = RTM_GETQDISC, .doit = tc_get_qdisc,
]

331/5 2026/08/15 18:20 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 12196
							output: 40
							thoughts: 46
						

Thoughts:
**My Thought Process Regarding `tc_get_qdisc` and `RTM_DELQDISC`**

Right, so I'm diving into the kernel's traffic control (tc) subsystem, specifically how it handles the deletion of qdiscs (queuing disciplines). My current focus is on the `tc_get_qdisc` function. I see that this function is involved when the kernel receives an `RTM_DELQDISC` netlink message. This makes sense; `RTM_DELQDISC` is the signal to remove a qdisc.

My next step is to trace the execution path from `tc_get_qdisc`. I've observed that it doesn't directly perform the deletion itself but rather delegates the core logic to a helper function, `__tc_get_qdisc`. This is a common pattern in kernel code for modularity and code reuse. Therefore, my immediate next action is to scrutinize the implementation of `__tc_get_qdisc` to understand the detailed mechanics of how it processes an `RTM_DELQDISC` request. I need to see what checks it performs, how it identifies the target qdisc, and what cleanup operations are initiated.


332/5 2026/08/15 18:20 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:__tc_get_qdisc]

Results:
map[SourceCode:1471:	static int __tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1472:				  struct netlink_ext_ack *extack,
1473:				  struct net_device *dev,
1474:				  struct nlattr *tca[TCA_MAX + 1],
1475:				  struct tcmsg *tcm)
1476:	{
1477:		struct net *net = sock_net(skb->sk);
1478:		struct Qdisc *q = NULL;
1479:		struct Qdisc *p = NULL;
1480:		u32 clid;
1481:		int err;
1482:	
1483:		clid = tcm->tcm_parent;
1484:		if (clid) {
1485:			if (clid != TC_H_ROOT) {
1486:				if (TC_H_MAJ(clid) != TC_H_MAJ(TC_H_INGRESS)) {
1487:					p = qdisc_lookup(dev, TC_H_MAJ(clid));
1488:					if (!p) {
1489:						NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified classid");
1490:						return -ENOENT;
1491:					}
1492:					q = qdisc_leaf(p, clid, extack);
1493:				} else if (dev_ingress_queue(dev)) {
1494:					q = rtnl_dereference(dev_ingress_queue(dev)->qdisc_sleeping);
1495:				}
1496:			} else {
1497:				q = rtnl_dereference(dev->qdisc);
1498:			}
1499:			if (!q) {
1500:				NL_SET_ERR_MSG(extack, "Cannot find specified qdisc on specified device");
1501:				return -ENOENT;
1502:			}
1503:			if (IS_ERR(q))
1504:				return PTR_ERR(q);
1505:	
1506:			if (tcm->tcm_handle && q->handle != tcm->tcm_handle) {
1507:				NL_SET_ERR_MSG(extack, "Invalid handle");
1508:				return -EINVAL;
1509:			}
1510:		} else {
1511:			q = qdisc_lookup(dev, tcm->tcm_handle);
1512:			if (!q) {
1513:				NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified handle");
1514:				return -ENOENT;
1515:			}
1516:		}
1517:	
1518:		if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1519:			NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
1520:			return -EINVAL;
1521:		}
1522:	
1523:		if (n->nlmsg_type == RTM_DELQDISC) {
1524:			if (!clid) {
1525:				NL_SET_ERR_MSG(extack, "Classid cannot be zero");
1526:				return -EINVAL;
1527:			}
1528:			if (q->handle == 0) {
1529:				NL_SET_ERR_MSG(extack, "Cannot delete qdisc with handle of zero");
1530:				return -ENOENT;
1531:			}
1532:			err = qdisc_graft(dev, p, skb, n, clid, NULL, q, extack);
1533:			if (err != 0)
1534:				return err;
1535:		} else {
1536:			qdisc_get_notify(net, skb, n, clid, q, NULL);
1537:		}
1538:		return 0;
1539:	}
 SourceFile:net/sched/sch_api.c]

333/5 2026/08/15 18:20 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 13415
							output: 38
							thoughts: 129
						

Thoughts:
**My Thought Process Regarding qdisc_graft and Root Qdisc Deletion**

Okay, so I'm looking at this `clid` parameter, specifically when it's equal to `TC_H_ROOT`. My immediate thought is that this signifies we're dealing with the root queuing discipline. In this scenario, I'd expect to be operating directly on the main queueing structure for the device, which is represented by `dev->qdisc`.

The next step I see is the call to `qdisc_graft(dev, p, skb, n, clid, NULL, q, extack)`. This is where things get interesting. I'm recalling that when `clid` is `TC_H_ROOT`, the `p` parameter is passed as `NULL`. Now, I know that `qdisc_graft`'s primary function is to attach a new qdisc (`n`) in place of an existing one (`p`) within a given parent qdisc (`q`).

Here's where the crucial realization hits me: if `p` is `NULL` and `clid` is `TC_H_ROOT`, the `qdisc_graft` function isn't really grafting *in* a new qdisc in the typical sense. Instead, it's being instructed to replace the root qdisc with `NULL`. And within this context, `NULL` effectively means the `noop_qdisc` – a null operation qdisc, essentially a placeholder that does nothing.

Therefore, my conclusion is that this sequence of operations, specifically the `qdisc_graft` call with `clid == TC_H_ROOT` and `p == NULL`, results in the effective deletion of the root qdisc. It's not just detaching it; it's replacing it with a non-operational entity.

Now, to solidify this understanding, I need to take a closer look at the `qdisc_graft` function itself. I want to verify the exact behavior when these specific conditions are met to ensure my interpretation of it "deleting" the root qdisc is accurate within the code's logic.


334/5 2026/08/15 18:20 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_graft]

Results:
map[SourceCode:1091:	static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
1092:			       struct sk_buff *skb, struct nlmsghdr *n, u32 classid,
1093:			       struct Qdisc *new, struct Qdisc *old,
1094:			       struct netlink_ext_ack *extack)
1095:	{
1096:		struct Qdisc *q = old;
1097:		struct net *net = dev_net(dev);
1098:	
1099:		if (parent == NULL) {
1100:			unsigned int i, num_q, ingress;
1101:			struct netdev_queue *dev_queue;
1102:	
1103:			ingress = 0;
1104:			num_q = dev->num_tx_queues;
1105:			if ((q && q->flags & TCQ_F_INGRESS) ||
1106:			    (new && new->flags & TCQ_F_INGRESS)) {
1107:				ingress = 1;
1108:				dev_queue = dev_ingress_queue(dev);
1109:				if (!dev_queue) {
1110:					NL_SET_ERR_MSG(extack, "Device does not have an ingress queue");
1111:					return -ENOENT;
1112:				}
1113:	
1114:				q = rtnl_dereference(dev_queue->qdisc_sleeping);
1115:	
1116:				/* This is the counterpart of that qdisc_refcount_inc_nz() call in
1117:				 * __tcf_qdisc_find() for filter requests.
1118:				 */
1119:				if (!qdisc_refcount_dec_if_one(q)) {
1120:					NL_SET_ERR_MSG(extack,
1121:						       "Current ingress or clsact Qdisc has ongoing filter requests");
1122:					return -EBUSY;
1123:				}
1124:			}
1125:	
1126:			if (dev->flags & IFF_UP)
1127:				dev_deactivate(dev, false);
1128:	
1129:			qdisc_offload_graft_root(dev, new, old, extack);
1130:	
1131:			if (new && new->ops->attach && !ingress)
1132:				goto skip;
1133:	
1134:			if (!ingress) {
1135:				for (i = 0; i < num_q; i++) {
1136:					dev_queue = netdev_get_tx_queue(dev, i);
1137:					old = dev_graft_qdisc(dev_queue, new);
1138:	
1139:					if (new && i > 0)
1140:						qdisc_refcount_inc(new);
1141:					qdisc_put(old);
1142:				}
1143:			} else {
1144:				old = dev_graft_qdisc(dev_queue, NULL);
1145:	
1146:				/* {ingress,clsact}_destroy() @old before grafting @new to avoid
1147:				 * unprotected concurrent accesses to net_device::miniq_{in,e}gress
1148:				 * pointer(s) in mini_qdisc_pair_swap().
1149:				 */
1150:				qdisc_notify(net, skb, n, classid, old, new, extack);
1151:				qdisc_destroy(old);
1152:	
1153:				dev_graft_qdisc(dev_queue, new);
1154:			}
1155:	
1156:	skip:
1157:			if (!ingress) {
1158:				old = rtnl_dereference(dev->qdisc);
1159:				if (new && !new->ops->attach)
1160:					qdisc_refcount_inc(new);
1161:				rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
1162:	
1163:				notify_and_destroy(net, skb, n, classid, old, new, extack);
1164:	
1165:				if (new && new->ops->attach)
1166:					new->ops->attach(new);
1167:			}
1168:	
1169:			if (dev->flags & IFF_UP)
1170:				dev_activate(dev);
1171:		} else {
1172:			const struct Qdisc_class_ops *cops = parent->ops->cl_ops;
1173:			unsigned long cl;
1174:			int err;
1175:	
1176:			/* Only support running class lockless if parent is lockless */
1177:			if (new && (new->flags & TCQ_F_NOLOCK) && !(parent->flags & TCQ_F_NOLOCK))
1178:				qdisc_clear_nolock(new);
1179:	
1180:			if (!cops || !cops->graft)
1181:				return -EOPNOTSUPP;
1182:	
1183:			cl = cops->find(parent, classid);
1184:			if (!cl) {
1185:				NL_SET_ERR_MSG(extack, "Specified class not found");
1186:				return -ENOENT;
1187:			}
1188:	
1189:			if (new && new->ops == &noqueue_qdisc_ops) {
1190:				NL_SET_ERR_MSG(extack, "Cannot assign noqueue to a class");
1191:				return -EINVAL;
1192:			}
1193:	
1194:			if (new &&
1195:			    !(parent->flags & TCQ_F_MQROOT) &&
1196:			    rcu_access_pointer(new->stab)) {
1197:				NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
1198:				return -EINVAL;
1199:			}
1200:			err = cops->graft(parent, cl, new, &old, extack);
1201:			if (err)
1202:				return err;
1203:			notify_and_destroy(net, skb, n, classid, old, new, extack);
1204:		}
1205:		return 0;
1206:	}
 SourceFile:net/sched/sch_api.c]

335/5 2026/08/15 18:20 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15399
							output: 36
							thoughts: 1196
						

Thoughts:
Here are my thoughts on how to approach this:

**My Thought Process on Reproducing the `qdisc_graft` Race Condition**

Okay, so the core of this issue, as I understand it, lies within the `qdisc_graft` operation. My initial analysis confirms that `qdisc_graft` will indeed invoke `notify_and_destroy`. This function, in turn, calls `qdisc_put` on the `old` qdisc, which ultimately leads to `qdisc_destroy(old)`. This sequence of events is precisely what I'm aiming to trigger and observe, so that part looks solid.

Now, to construct a fast reproducer, I need a way to reliably set up the qdisc structure and then trigger the race condition. For the initial setup, using `system("tc ...")` commands is perfectly acceptable. The timing here doesn't need to be millisecond-perfect; it's about establishing the environment.

My plan is to:
1.  Use `system("tc ...")` to configure the qdiscs.
2.  Send a packet. This is important to ensure that the relevant qdiscs are active and potentially involved in packet processing.
3.  Then, I'll introduce a `sleep` for approximately 1 second. This delay is crucial for allowing the timers we'll set up to become active and, importantly, to start firing.
4.  Finally, I'll use raw Netlink to delete the root qdisc. Raw Netlink is appealing because it's very fast and avoids the overhead associated with parsing commands like `tc` itself. However, I've also considered that `tc qdisc del dev dummy0 root` is likely fast enough, but Netlink is still the more elegant and potentially faster choice for this specific, timing-sensitive step.

However, a critical realization then hit me: the actual race condition is between `qdisc_destroy(parent)` and the `sfq_perturbation` timer.

Let's break down what happens during `qdisc_destroy`: it first calls `qdisc_hash_del(q)` and then `q->ops->destroy(q)`. For the HTB qdisc, the `htb_destroy` operation involves iterating through all its classes and destroying their child qdiscs. This is a key insight. If I have many classes within HTB, `htb_destroy` will take longer to execute. This extended execution time directly widens the window between when the HTB itself is removed from the hash table (`qdisc_hash_del(htb)`) and when its child SFQ qdiscs are destroyed (`qdisc_destroy(sfq)`). Therefore, having a multitude of classes is beneficial for increasing the chances of hitting the race. I've decided to use 50 classes.

My initial approach for setting this up would look something like this:

```c
// Pseudocode representing the batch file generation
FILE *bf = fopen(batch_file, "w");
fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
for (int c = 1; c <= 50; c++) {
    fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
    fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
}
fclose(bf);
system("tc -batch ..."); // Execute the batch file
```

But then I had another thought: `tc -batch` itself takes time to execute. If I'm setting up 50 classes, this operation won't be instantaneous. Let's say it takes 20ms. This means the `sfq_perturbation` timers are being armed sequentially over this 20ms window. If I simply sleep for 1 second after the `tc -batch` command, the timers will have already started firing.

I need to be more precise with my timing. The timers are armed *during* the `tc -batch` execution. The *first* timer will fire at approximately `start_of_batch + 1 second`. The *last* timer will fire at approximately `end_of_batch + 1 second`. My goal is to delete the root qdisc precisely when these timers are active and firing.

This led me to refine the sleep calculation. I need to account for the `elapsed_us` taken by `tc -batch`.

```c
// Pseudocode for timing and sleeping
struct timespec start, end;
clock_gettime(CLOCK_MONOTONIC, &start);

sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
system(cmd);

// Enqueue packets (as before)
for (int c = 1; c <= 50; c++) {
    int priority = 0x10000 | c; // 1:c
    setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
    sendto(fd, buf, 100, 0, (struct sockaddr *)&sall, sizeof(sall));
}

clock_gettime(CLOCK_MONOTONIC, &end);
long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;

// The timers were armed during tc -batch.
// The first timer fires at start + 1s.
// The last timer fires at end + 1s.
// We want to delete the root qdisc when the timers are actively firing.
// So we should sleep until start + 1s + some offset.

long sleep_us = 1000000 - elapsed_us; // Aim to wake up around start + 1s
if (sleep_us > 0) {
    // Add some jitter to hit different timers
    sleep_us += (rand() % (elapsed_us + 10000));
    usleep(sleep_us);
}
```

This refined logic is crucial. `tc -batch` arms the timers sequentially. The `sfq_change` function is invoked for each `qdisc add ... sfq perturb 1`. So, if `tc -batch` takes `elapsed_us`, the timers are armed and will fire sequentially over that `elapsed_us` period, starting from `start_time + 1 second`.

Now, if I sleep for `1000000 - elapsed_us` *after* the `tc -batch` command finishes (i.e., after `end_time`), my wake-up time will be:
`end_time + (1000000 - elapsed_us)`
This is equivalent to:
`start_time + elapsed_us + 1000000 - elapsed_us`
Which simplifies to:
`start_time + 1000000`

This is *exactly* when the *first* timer is scheduled to fire! From this point, I begin the process of deleting the root qdisc. This deletion process itself takes some time, and crucially, during this ongoing deletion, the *remaining* timers will fire. This is the perfect timing to induce the race condition.

My next step is to meticulously trace the execution of `htb_destroy` to understand its internal workings and how it interacts with the destruction of child SFQ qdiscs during this critical window.


336/5 2026/08/15 18:20 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy]

Results:
map[SourceCode:1618:	static void htb_destroy(struct Qdisc *sch)
1619:	{
1620:		struct net_device *dev = qdisc_dev(sch);
1621:		struct tc_htb_qopt_offload offload_opt;
1622:		struct htb_sched *q = qdisc_priv(sch);
1623:		struct hlist_node *next;
1624:		bool nonempty, changed;
1625:		struct htb_class *cl;
1626:		unsigned int i;
1627:	
1628:		cancel_work_sync(&q->work);
1629:		qdisc_watchdog_cancel(&q->watchdog);
1630:		/* This line used to be after htb_destroy_class call below
1631:		 * and surprisingly it worked in 2.4. But it must precede it
1632:		 * because filter need its target class alive to be able to call
1633:		 * unbind_filter on it (without Oops).
1634:		 */
1635:		tcf_block_put(q->block);
1636:	
1637:		for (i = 0; i < q->clhash.hashsize; i++) {
1638:			hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
1639:				tcf_block_put(cl->block);
1640:				cl->block = NULL;
1641:			}
1642:		}
1643:	
1644:		do {
1645:			nonempty = false;
1646:			changed = false;
1647:			for (i = 0; i < q->clhash.hashsize; i++) {
1648:				hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
1649:							  common.hnode) {
1650:					bool last_child;
1651:	
1652:					if (!q->offload) {
1653:						htb_destroy_class(sch, cl);
1654:						continue;
1655:					}
1656:	
1657:					nonempty = true;
1658:	
1659:					if (cl->level)
1660:						continue;
1661:	
1662:					changed = true;
1663:	
1664:					last_child = htb_parent_last_child(cl);
1665:					htb_destroy_class_offload(sch, cl, last_child,
1666:								  true, NULL);
1667:					qdisc_class_hash_remove(&q->clhash,
1668:								&cl->common);
1669:					if (cl->parent)
1670:						cl->parent->children--;
1671:					if (last_child)
1672:						htb_parent_to_leaf(sch, cl, NULL);
1673:					htb_destroy_class(sch, cl);
1674:				}
1675:			}
1676:		} while (changed);
1677:		WARN_ON(nonempty);
1678:	
1679:		qdisc_class_hash_destroy(&q->clhash);
1680:		__qdisc_reset_queue(&q->direct_queue);
1681:	
1682:		if (q->offload) {
1683:			offload_opt = (struct tc_htb_qopt_offload) {
1684:				.command = TC_HTB_DESTROY,
1685:			};
1686:			htb_offload(dev, &offload_opt);
1687:		}
1688:	
1689:		if (!q->direct_qdiscs)
1690:			return;
1691:		for (i = 0; i < q->num_direct_qdiscs && q->direct_qdiscs[i]; i++)
1692:			qdisc_put(q->direct_qdiscs[i]);
1693:		kfree(q->direct_qdiscs);
1694:	}
 SourceFile:net/sched/sch_htb.c]

337/5 2026/08/15 18:20 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 17788
							output: 38
							thoughts: 23
						

Thoughts:
**My Thought Process on `htb_destroy`**

Ah, `htb_destroy`. My mind immediately goes to its core function: a systematic dismantling. I see it as an overarching orchestrator. Its primary directive is to ensure that every single class within its purview is properly decommissioned. To achieve this, it doesn't just wave a magic wand; it meticulously iterates through a collection – I'm envisioning a list, or perhaps a more sophisticated data structure, representing all the classes it's responsible for. For each and every one of these classes, it invokes a specific, dedicated function: `htb_destroy_class`. This specialized function, I presume, handles the granular cleanup for an individual class, taking the necessary parameters, presumably the scheduler (`sch`) and the class object itself (`cl`), to perform its task. So, in essence, `htb_destroy` is the grand finale, the master of ceremonies for destruction, ensuring no class is left behind in the cleanup process.


338/5 2026/08/15 18:20 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy_class]

Results:
map[SourceCode:1607:	static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
1608:	{
1609:		if (!cl->level) {
1610:			WARN_ON(!cl->leaf.q);
1611:			qdisc_put(cl->leaf.q);
1612:		}
1613:		gen_kill_estimator(&cl->rate_est);
1614:		tcf_block_put(cl->block);
1615:		kfree(cl);
1616:	}
 SourceFile:net/sched/sch_htb.c]

339/5 2026/08/15 18:20 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 18013
							output: 38
							thoughts: 3900
						

Thoughts:
**A Deep Dive into the Race Condition in `tc qdisc del` and SFQ Timers**

I've been wrestling with a subtle race condition that can occur when deleting a root qdisc, specifically when it contains SFQ (Stochastic Fairness Queueing) schedulers as children. My investigation has led me to a critical window where this race can manifest and cause an `WARN_ON_ONCE(parentid != TC_H_ROOT)` in the kernel.

Here's how I've pieced together the sequence of events that leads to this problem:

1.  **Initiating the Deletion:** The whole ordeal begins when a `tc qdisc del dev dummy0 root` command is executed.

2.  **Grafting and Cleanup:** This command triggers `qdisc_graft`, which, in turn, replaces the current root qdisc with a `noop_qdisc` and then calls `qdisc_put` on the *old* root qdisc.

3.  **The Destruction Process:** My focus then shifts to `qdisc_put(old)`, which escalates into `qdisc_destroy(old)`. This is where things get interesting:
    *   `qdisc_destroy(old)` first calls `qdisc_hash_del(old)`. This is a crucial step – it *removes* the old root qdisc from the kernel's internal hash table, making it inaccessible via lookup.
    *   Immediately after, `qdisc_destroy(old)` proceeds to call `old->ops->destroy(old)`. For an HTB (Hierarchical Token Bucket) qdisc, this is `htb_destroy`.

4.  **HTB's Cascade of Destruction:** `htb_destroy` is designed to clean up its children. It iterates through all the classes it manages and, for each class, it calls `qdisc_put(cl->leaf.q)`. This is where SFQ schedulers get involved.

5.  **SFQ Cleanup and Timer Cancellation:** For each SFQ child qdisc, `qdisc_put(cl->leaf.q)` again leads to `qdisc_destroy(cl->leaf.q)`. The SFQ destructor (`sfq_destroy`) then attempts to cancel its associated timer, `q->perturb_timer`, using `timer_delete_sync(&q->perturb_timer)`.

**The Critical Race Window:**

The race condition arises if the `perturb_timer` (belonging to an SFQ scheduler) fires *after* the root HTB qdisc has been removed from the hash table (step 4) but *before* its timer has been successfully cancelled by `sfq_destroy` (step 9).

**What Happens When the Timer Fires Prematurely?**

If the SFQ timer fires within this window, it executes its callback function, `sfq_perturbation`. This function, in turn, calls `sfq_rehash`. The `sfq_rehash` function is where the real trouble starts:

*   `sfq_rehash` calls `qdisc_tree_reduce_backlog(sch, 0, 0)`.
*   `qdisc_tree_reduce_backlog` then attempts to find the parent qdisc using `qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(sch->parent))`.
*   However, because the root qdisc was removed from the hash table in step 4, `qdisc_lookup_rcu` will return `NULL`.
*   This situation leads to the `WARN_ON_ONCE(parentid != TC_H_ROOT)` kernel warning, as the system expects to find a root qdisc but discovers it's gone.

**Pinpointing the Exact Timing:**

The window for this race is precisely between the completion of `qdisc_hash_del(htb)` (step 4) and the successful execution of `timer_delete_sync(&sfq->perturb_timer)` (step 9). The duration of this window is effectively the time it takes for `htb_destroy` to iterate through its classes and initiate the destruction of the SFQ children, up to the point where `sfq_destroy` is called on a particular SFQ scheduler. If we have a significant number of classes (e.g., 50 or more), `htb_destroy` will take a measurable amount of time. If an SFQ timer for class 'X' fires while `htb_destroy` is still processing classes before 'X', the race condition is hit.

**Crafting a Reproducer:**

To reliably trigger this, my strategy has been to:

1.  **Mass Provisioning:** Quickly create a large number of classes (e.g., 100) under a root HTB qdisc. Each class should have an SFQ qdisc attached with a short `perturb` interval (e.g., 1 second). This ensures that many SFQ timers are armed almost simultaneously. I've found that using `libmnl` or raw netlink for this setup is significantly faster than sequential `tc` commands, allowing timers to be armed within microseconds of each other.
2.  **Precise Timing:** Wait for approximately 1 second after setting up the qdiscs. The goal is to wait until the SFQ timers are *just about* to fire.
3.  **The Deletion Strike:** At the opportune moment, I trigger the deletion of the root qdisc. To achieve millisecond-level precision, I've developed a raw netlink function (`delete_qdisc`) that bypasses the overhead of the `tc` command.
4.  **Simultaneous Events:** The moment the root qdisc is deleted via netlink, `qdisc_hash_del` executes. Almost immediately thereafter, `htb_destroy` begins its work. Concurrently, the armed SFQ timers fire. This creates a high probability that the `qdisc_lookup_rcu` call within `sfq_rehash` will find the root qdisc has already been removed from the hash table, triggering the warning.

I've refined this approach, experimenting with sleep durations and the number of classes, to maximize the chances of hitting the race condition reliably. The use of raw netlink for deletion is key, as it minimizes the latency between the sleep and the actual `qdisc_hash_del` operation, thereby narrowing the window further and making the race more likely.


340/5 2026/08/15 18:21 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_enqueue]

Results:
map[SourceCode: 343:	static int
 344:	sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)
 345:	{
 346:		struct sfq_sched_data *q = qdisc_priv(sch);
 347:		unsigned int hash, dropped;
 348:		sfq_index x, qlen;
 349:		struct sfq_slot *slot;
 350:		int ret;
 351:		struct sk_buff *head;
 352:		int delta;
 353:	
 354:		hash = sfq_classify(skb, sch, &ret);
 355:		if (hash == 0) {
 356:			if (ret & __NET_XMIT_BYPASS)
 357:				qdisc_qstats_drop(sch);
 358:			__qdisc_drop(skb, to_free);
 359:			return ret;
 360:		}
 361:		hash--;
 362:	
 363:		x = q->ht[hash];
 364:		slot = &q->slots[x];
 365:		if (x == SFQ_EMPTY_SLOT) {
 366:			x = q->dep[0].next; /* get a free slot */
 367:			if (x >= SFQ_MAX_FLOWS)
 368:				return qdisc_drop_reason(skb, sch, to_free, QDISC_DROP_MAXFLOWS);
 369:			WRITE_ONCE(q->ht[hash], x);
 370:			slot = &q->slots[x];
 371:			slot->hash = hash;
 372:			WRITE_ONCE(slot->backlog, 0); /* should already be 0 anyway... */
 373:			red_set_vars(&slot->vars);
 374:			goto enqueue;
 375:		}
 376:		if (q->red_parms) {
 377:			slot->vars.qavg = red_calc_qavg_no_idle_time(q->red_parms,
 378:								&slot->vars,
 379:								slot->backlog);
 380:			switch (red_action(q->red_parms,
 381:					   &slot->vars,
 382:					   slot->vars.qavg)) {
 383:			case RED_DONT_MARK:
 384:				break;
 385:	
 386:			case RED_PROB_MARK:
 387:				qdisc_qstats_overlimit(sch);
 388:				if (sfq_prob_mark(q)) {
 389:					/* We know we have at least one packet in queue */
 390:					if (sfq_headdrop(q) &&
 391:					    INET_ECN_set_ce(slot->skblist_next)) {
 392:						q->stats.prob_mark_head++;
 393:						break;
 394:					}
 395:					if (INET_ECN_set_ce(skb)) {
 396:						q->stats.prob_mark++;
 397:						break;
 398:					}
 399:				}
 400:				q->stats.prob_drop++;
 401:				goto congestion_drop;
 402:	
 403:			case RED_HARD_MARK:
 404:				qdisc_qstats_overlimit(sch);
 405:				if (sfq_hard_mark(q)) {
 406:					/* We know we have at least one packet in queue */
 407:					if (sfq_headdrop(q) &&
 408:					    INET_ECN_set_ce(slot->skblist_next)) {
 409:						q->stats.forced_mark_head++;
 410:						break;
 411:					}
 412:					if (INET_ECN_set_ce(skb)) {
 413:						q->stats.forced_mark++;
 414:						break;
 415:					}
 416:				}
 417:				q->stats.forced_drop++;
 418:				goto congestion_drop;
 419:			}
 420:		}
 421:	
 422:		if (slot->qlen >= q->maxdepth) {
 423:	congestion_drop:
 424:			if (!sfq_headdrop(q))
 425:				return qdisc_drop_reason(skb, sch, to_free, QDISC_DROP_FLOW_LIMIT);
 426:	
 427:			/* We know we have at least one packet in queue */
 428:			head = slot_dequeue_head(slot);
 429:			delta = qdisc_pkt_len(head) - qdisc_pkt_len(skb);
 430:			qstats_backlog_sub(sch, delta);
 431:			WRITE_ONCE(slot->backlog, slot->backlog - delta);
 432:			qdisc_drop_reason(head, sch, to_free, QDISC_DROP_FLOW_LIMIT);
 433:	
 434:			slot_queue_add(slot, skb);
 435:			qdisc_tree_reduce_backlog(sch, 0, delta);
 436:			return NET_XMIT_CN;
 437:		}
 438:	
 439:	enqueue:
 440:		qdisc_qstats_backlog_inc(sch, skb);
 441:		WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 442:		slot_queue_add(slot, skb);
 443:		sfq_inc(q, x);
 444:		if (slot->qlen == 1) {		/* The flow is new */
 445:			if (q->tail == NULL) {	/* It is the first flow */
 446:				slot->next = x;
 447:			} else {
 448:				slot->next = q->tail->next;
 449:				q->tail->next = x;
 450:			}
 451:			/* We put this flow at the end of our flow list.
 452:			 * This might sound unfair for a new flow to wait after old ones,
 453:			 * but we could endup servicing new flows only, and freeze old ones.
 454:			 */
 455:			q->tail = slot;
 456:			/* We could use a bigger initial quantum for new flows */
 457:			WRITE_ONCE(slot->allot, q->quantum);
 458:		}
 459:		qdisc_qlen_inc(sch);
 460:		if (sch->q.qlen <= q->limit)
 461:			return NET_XMIT_SUCCESS;
 462:	
 463:		qlen = slot->qlen;
 464:		dropped = sfq_drop(sch, to_free);
 465:		/* Return Congestion Notification only if we dropped a packet
 466:		 * from this flow.
 467:		 */
 468:		if (qlen != slot->qlen) {
 469:			qdisc_tree_reduce_backlog(sch, 0, dropped - qdisc_pkt_len(skb));
 470:			return NET_XMIT_CN;
 471:		}
 472:	
 473:		/* As we dropped a packet, better let upper stack know this */
 474:		qdisc_tree_reduce_backlog(sch, 1, dropped);
 475:		return NET_XMIT_SUCCESS;
 476:	}
 SourceFile:net/sched/sch_sfq.c]

341/5 2026/08/15 18:21 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 24089
							output: 36
							thoughts: 6707
						

Thoughts:
**The Race Condition: `sfq_rehash` and `delete_qdisc`**

I've been delving into a tricky race condition involving the `sfq_enqueue` function and the `delete_qdisc` operation. My initial analysis revealed that `sfq_enqueue` doesn't directly call `sfq_rehash`. The only place `sfq_rehash` is invoked is within `sfq_perturbation`. This immediately told me that the timer mechanism, specifically the one responsible for triggering `sfq_perturbation`, absolutely *must* fire for `sfq_rehash` to ever be called.

I then examined how this timer is armed. It's set using `mod_timer(&q->perturb_timer, jiffies + q->perturb_period);`, and crucially, `q->perturb_period` is set to `1 * HZ`, meaning it's scheduled to fire exactly one second after `sfq_change` is called. This timing is key.

My next step was to meticulously scrutinize the `delete_qdisc` function, particularly the parameters being passed for deletion. I was questioning if `tcm_handle = 0` was the correct value for deleting the root qdisc. Diving into `__tc_get_qdisc`, I found checks related to `clid` (which is `tcm_parent`) and `q->handle`.

Here's where the crucial detail emerged: if `tcm_parent` is `TC_H_ROOT` (which is `0xFFFFFFFF`), `clid` is not zero, so that check passes. For the root qdisc, `q->handle` is `1:`, which is `0x00010000`, so it's not zero either. However, the logic then checks `if (tcm->tcm_handle && q->handle != tcm->tcm_handle)`. If `tcm_handle` is `0`, this condition is entirely bypassed, meaning `tcm_handle = 0` is perfectly valid for deleting the root qdisc. I also confirmed that `req.t.tcm_parent = TC_H_ROOT;` is correctly defined as `0xFFFFFFFFU`.

My verification then shifted to the `tc qdisc del dev dummy0 root` command. I observed that this command indeed sends an `RTM_DELQDISC` message with `tcm_parent = TC_H_ROOT` and `tcm_handle = 0`. This confirmed that my `delete_qdisc` implementation aligns with the expected behavior for this operation.

The focus then returned to the timing and the potential for a race condition. The `elapsed_us` calculation is performed *after* sending packets and executing `tc -batch`. The `tc -batch` command itself takes a non-trivial amount of time, during which the SFQ timers are armed. This means the timers will fire within the window of `start + 1s` to `start + tc_batch_time + 1s`.

My sleep calculation, `long sleep_us = 1000000 - elapsed_us + (rand_r(&seed) % 20000) - 10000;`, initially aimed to wake up around `start + 1s`. However, I realized that `elapsed_us` is primarily the duration of `tc -batch`. If `tc -batch` takes, say, 200ms, then waking up at `end + 1000000 - elapsed_us` means I wake up at `start + 1000000`, precisely at the moment the *first* timer is scheduled to fire. Then, `delete_qdisc` is called, which involves operations like `qdisc_hash_del` and `htb_destroy`. During the execution of `delete_qdisc` (which destroys all 100 classes), the remaining timers for the other SFQ qdiscs will naturally fire. This synchronicity is exactly what I want for triggering the race.

To refine this, I decided to introduce jitter. By adjusting the sleep to be between `start + 1s` and `start + 1s + elapsed_us / 2` (approximately), I ensure I wake up within the timer firing window, and given that `delete_qdisc` takes some time to execute its core removal logic, it's highly probable that it will occur concurrently with the timer callbacks that attempt to remove parents that have already been detached from the hash table by `qdisc_hash_del`.

The `qdisc_tree_reduce_backlog` function's warning, `WARN_ON_ONCE(parentid != TC_H_ROOT)` occurring when `qdisc_lookup_rcu` returns NULL because the parent HTB qdisc has been removed from the hash table by `qdisc_hash_del` (which is called by `qdisc_put` during `htb_destroy` in response to `delete_qdisc`), is the precise race condition I aim to expose. This happens when the root qdisc is deleted, removing its children (the HTB classes) from the hash table, and then an SFQ qdisc's timer fires, leading to `qdisc_tree_reduce_backlog` trying to look up its parent, which is no longer present.

I also made a critical change to ensure the packets stay in the SFQ queues long enough for the timers to fire. By sending multiple packets per class (5 packets) and setting the HTB rate to a very low `8bit`, I guarantee that the SFQ queues will not be empty, and thus `sfq_rehash` will indeed be triggered by the perturbation timers.

Finally, I've removed the `recv` call after `sendto` in `delete_qdisc`. The netlink message processing in the kernel is synchronous for `RTM_DELQDISC`, meaning the `sendto` call itself will block until the qdisc is deleted. This simplifies the logic and avoids potential blocking issues.


342/5 2026/08/15 18:21 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_classify]

Results:
map[SourceCode: 205:	/**
 206:	 * htb_classify - classify a packet into class
 207:	 * @skb: the socket buffer
 208:	 * @sch: the active queue discipline
 209:	 * @qerr: pointer for returned status code
 210:	 *
 211:	 * It returns NULL if the packet should be dropped or -1 if the packet
 212:	 * should be passed directly thru. In all other cases leaf class is returned.
 213:	 * We allow direct class selection by classid in priority. The we examine
 214:	 * filters in qdisc and in inner nodes (if higher filter points to the inner
 215:	 * node). If we end up with classid MAJOR:0 we enqueue the skb into special
 216:	 * internal fifo (direct). These packets then go directly thru. If we still
 217:	 * have no valid leaf we try to use MAJOR:default leaf. It still unsuccessful
 218:	 * then finish and return direct queue.
 219:	 */
 220:	static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
 221:					      int *qerr)
 222:	{
 223:		struct htb_sched *q = qdisc_priv(sch);
 224:		struct htb_class *cl;
 225:		struct tcf_result res;
 226:		struct tcf_proto *tcf;
 227:		int result;
 228:	
 229:		/* allow to select class by setting skb->priority to valid classid;
 230:		 * note that nfmark can be used too by attaching filter fw with no
 231:		 * rules in it
 232:		 */
 233:		if (skb->priority == sch->handle)
 234:			return HTB_DIRECT;	/* X:0 (direct flow) selected */
 235:		cl = htb_find(skb->priority, sch);
 236:		if (cl) {
 237:			if (cl->level == 0)
 238:				return cl;
 239:			/* Start with inner filter chain if a non-leaf class is selected */
 240:			tcf = rcu_dereference_bh(cl->filter_list);
 241:		} else {
 242:			tcf = rcu_dereference_bh(q->filter_list);
 243:		}
 244:	
 245:		*qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
 246:		while (tcf && (result = tcf_classify(skb, NULL, tcf, &res, false)) >= 0) {
 247:	#ifdef CONFIG_NET_CLS_ACT
 248:			switch (result) {
 249:			case TC_ACT_QUEUED:
 250:			case TC_ACT_STOLEN:
 251:			case TC_ACT_TRAP:
 252:				*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
 253:				fallthrough;
 254:			case TC_ACT_SHOT:
 255:				return NULL;
 256:			}
 257:	#endif
 258:			cl = (void *)res.class;
 259:			if (!cl) {
 260:				if (res.classid == sch->handle)
 261:					return HTB_DIRECT;	/* X:0 (direct flow) */
 262:				cl = htb_find(res.classid, sch);
 263:				if (!cl)
 264:					break;	/* filter selected invalid classid */
 265:			}
 266:			if (!cl->level)
 267:				return cl;	/* we hit leaf; return it */
 268:	
 269:			/* we have got inner class; apply inner filter chain */
 270:			tcf = rcu_dereference_bh(cl->filter_list);
 271:		}
 272:		/* classification failed; try to use default class */
 273:		cl = htb_find(TC_H_MAKE(TC_H_MAJ(sch->handle), q->defcls), sch);
 274:		if (!cl || cl->level)
 275:			return HTB_DIRECT;	/* bad default .. this is safe bet */
 276:		return cl;
 277:	}
 SourceFile:net/sched/sch_htb.c]

343/5 2026/08/15 18:21 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 32056
							output: 37
							thoughts: 129
						

Thoughts:
**My Thought Process Regarding Packet Classification via SO_PRIORITY**

Ah, excellent! I've just confirmed my understanding of how `htb_classify` operates. My initial thought was correct: it indeed inspects `skb->priority`. The crucial part is that if this `skb->priority` value aligns with a predefined, valid `classid`, `htb_classify` will then return that specific class, provided it's a leaf node within the hierarchy.

This realization brings me great satisfaction because it means that by setting the `SO_PRIORITY` socket option to a value of `0x10000 | c`, where 'c' represents the desired class identifier, I can directly enqueue the packet to class `1:c`. This is an absolutely elegant solution, completely bypassing the need for cumbersome `tc filter` rules. It's exactly what I was hoping for.

Now, my next critical step is to verify if this `SO_PRIORITY` mechanism extends its functionality to `AF_PACKET` sockets. To do this, I'm now delving into the `packet_sendmsg` function, specifically within the `net/packet/af_packet.c` file. This investigation will be key to confirming end-to-end applicability.


344/5 2026/08/15 18:21 tool codesearch-definition-source
0m Args:
map[ContextFile:net/packet/af_packet.c Name:packet_sendmsg]

Results:
map[SourceCode:3103:	static int packet_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
3104:	{
3105:		struct sock *sk = sock->sk;
3106:		struct packet_sock *po = pkt_sk(sk);
3107:	
3108:		/* Reading tx_ring.pg_vec without holding pg_vec_lock is racy.
3109:		 * tpacket_snd() will redo the check safely.
3110:		 */
3111:		if (data_race(po->tx_ring.pg_vec))
3112:			return tpacket_snd(po, msg);
3113:	
3114:		return packet_snd(sock, msg, len);
3115:	}
 SourceFile:net/packet/af_packet.c]

345/5 2026/08/15 18:21 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 32443
							output: 36
							thoughts: 9
						

Thoughts:
**My Thought Process Regarding `packet_snd`**

Alright, first things first, I need to get a handle on the `packet_snd` component. My immediate inclination is to dive in and see exactly what it's doing. I'm looking to understand its purpose, its function within the broader system, and how it interacts with other parts. What data is it responsible for sending? What are the parameters it accepts, and what are the expected outputs or side effects? I'll be paying close attention to its implementation details – the algorithms it employs, any state it maintains, and its overall efficiency. Essentially, I'm trying to form a comprehensive mental model of `packet_snd` before I can make any informed decisions or propose any improvements.


346/5 2026/08/15 18:22 tool codesearch-definition-source
0m Args:
map[ContextFile:net/packet/af_packet.c Name:packet_snd]

Results:
map[SourceCode:2945:	static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
2946:	{
2947:		struct sock *sk = sock->sk;
2948:		DECLARE_SOCKADDR(struct sockaddr_ll *, saddr, msg->msg_name);
2949:		struct sk_buff *skb;
2950:		struct net_device *dev;
2951:		__be16 proto;
2952:		unsigned char *addr = NULL;
2953:		int err, reserve = 0;
2954:		struct sockcm_cookie sockc;
2955:		struct virtio_net_hdr vnet_hdr = { 0 };
2956:		int offset = 0;
2957:		struct packet_sock *po = pkt_sk(sk);
2958:		int vnet_hdr_sz = READ_ONCE(po->vnet_hdr_sz);
2959:		int hlen, tlen, linear;
2960:		int extra_len = 0;
2961:	
2962:		/*
2963:		 *	Get and verify the address.
2964:		 */
2965:	
2966:		if (likely(saddr == NULL)) {
2967:			dev	= packet_cached_dev_get(po);
2968:			proto	= READ_ONCE(po->num);
2969:		} else {
2970:			err = -EINVAL;
2971:			if (msg->msg_namelen < sizeof(struct sockaddr_ll))
2972:				goto out;
2973:			if (msg->msg_namelen < (saddr->sll_halen + offsetof(struct sockaddr_ll, sll_addr)))
2974:				goto out;
2975:			proto	= saddr->sll_protocol;
2976:			dev = dev_get_by_index(sock_net(sk), saddr->sll_ifindex);
2977:			if (sock->type == SOCK_DGRAM) {
2978:				if (dev && msg->msg_namelen < dev->addr_len +
2979:					   offsetof(struct sockaddr_ll, sll_addr))
2980:					goto out_unlock;
2981:				addr = saddr->sll_addr;
2982:			}
2983:		}
2984:	
2985:		err = -ENXIO;
2986:		if (unlikely(dev == NULL))
2987:			goto out_unlock;
2988:		err = -ENETDOWN;
2989:		if (unlikely(!(dev->flags & IFF_UP)))
2990:			goto out_unlock;
2991:	
2992:		sockcm_init(&sockc, sk);
2993:		if (msg->msg_controllen) {
2994:			err = sock_cmsg_send(sk, msg, &sockc);
2995:			if (unlikely(err))
2996:				goto out_unlock;
2997:		}
2998:	
2999:		if (sock->type == SOCK_RAW)
3000:			reserve = dev->hard_header_len;
3001:		if (vnet_hdr_sz) {
3002:			err = packet_snd_vnet_parse(msg, &len, &vnet_hdr, vnet_hdr_sz);
3003:			if (err)
3004:				goto out_unlock;
3005:		}
3006:	
3007:		if (unlikely(sock_flag(sk, SOCK_NOFCS))) {
3008:			if (!netif_supports_nofcs(dev)) {
3009:				err = -EPROTONOSUPPORT;
3010:				goto out_unlock;
3011:			}
3012:			extra_len = 4; /* We're doing our own CRC */
3013:		}
3014:	
3015:		err = -EMSGSIZE;
3016:		if (!vnet_hdr.gso_type &&
3017:		    (len > dev->mtu + reserve + VLAN_HLEN + extra_len))
3018:			goto out_unlock;
3019:	
3020:		err = -ENOBUFS;
3021:		hlen = LL_RESERVED_SPACE(dev);
3022:		tlen = dev->needed_tailroom;
3023:		linear = __virtio16_to_cpu(vio_le(), vnet_hdr.hdr_len);
3024:		linear = max(linear, min_t(int, len, dev->hard_header_len));
3025:		skb = packet_alloc_skb(sk, hlen + tlen, hlen, len, linear,
3026:				       msg->msg_flags & MSG_DONTWAIT, &err);
3027:		if (skb == NULL)
3028:			goto out_unlock;
3029:	
3030:		skb_reset_network_header(skb);
3031:	
3032:		err = -EINVAL;
3033:		if (sock->type == SOCK_DGRAM) {
3034:			offset = dev_hard_header(skb, dev, ntohs(proto), addr, NULL, len);
3035:			if (unlikely(offset < 0))
3036:				goto out_free;
3037:		} else if (reserve) {
3038:			skb_reserve(skb, -reserve);
3039:			if (len < reserve + sizeof(struct ipv6hdr) &&
3040:			    dev->min_header_len != dev->hard_header_len)
3041:				skb_reset_network_header(skb);
3042:		}
3043:	
3044:		/* Returns -EFAULT on error */
3045:		err = skb_copy_datagram_from_iter(skb, offset, &msg->msg_iter, len);
3046:		if (err)
3047:			goto out_free;
3048:	
3049:		if ((sock->type == SOCK_RAW &&
3050:		     !dev_validate_header(dev, skb->data, len)) || !skb->len) {
3051:			err = -EINVAL;
3052:			goto out_free;
3053:		}
3054:	
3055:		skb_setup_tx_timestamp(skb, &sockc);
3056:	
3057:		if (!vnet_hdr.gso_type && (len > dev->mtu + reserve + extra_len) &&
3058:		    !packet_extra_vlan_len_allowed(dev, skb)) {
3059:			err = -EMSGSIZE;
3060:			goto out_free;
3061:		}
3062:	
3063:		skb->protocol = proto;
3064:		skb->dev = dev;
3065:		skb->priority = sockc.priority;
3066:		skb->mark = sockc.mark;
3067:		skb_set_delivery_type_by_clockid(skb, sockc.transmit_time, sk->sk_clockid);
3068:	
3069:		if (unlikely(extra_len == 4))
3070:			skb->no_fcs = 1;
3071:	
3072:		packet_parse_headers(skb, sock);
3073:	
3074:		if (vnet_hdr_sz) {
3075:			err = virtio_net_hdr_to_skb(skb, &vnet_hdr, vio_le());
3076:			if (err)
3077:				goto out_free;
3078:			len += vnet_hdr_sz;
3079:			virtio_net_hdr_set_proto(skb, &vnet_hdr);
3080:		}
3081:	
3082:		err = packet_xmit(po, skb);
3083:	
3084:		if (unlikely(err != 0)) {
3085:			if (err > 0)
3086:				err = net_xmit_errno(err);
3087:			if (err)
3088:				goto out_unlock;
3089:		}
3090:	
3091:		dev_put(dev);
3092:	
3093:		return len;
3094:	
3095:	out_free:
3096:		kfree_skb(skb);
3097:	out_unlock:
3098:		dev_put(dev);
3099:	out:
3100:		return err;
3101:	}
 SourceFile:net/packet/af_packet.c]

347/5 2026/08/15 18:22 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 34934
							output: 2224
							thoughts: 86
						

Thoughts:
**My Thought Process**

Alright, let's break down this thought stream.

First off, I've confirmed that the `skb->priority` field is indeed being set correctly. The critical line here is `skb->priority = sockc.priority;`. I've traced this back, and `sockc.priority` itself gets its initial value from `sk->sk_priority` during the `sockcm_init` function. This means that when a user calls `setsockopt(fd, SOL_SOCKET, SO_PRIORITY, ...)` with a specific priority value, that value will be properly propagated and ultimately reflected in `skb->priority`. So, the mechanism for setting the socket option and having it influence the packet's priority seems to be functioning as expected.

Beyond that, I've assessed the reproducer code. Based on my analysis, it appears to be robust and well-constructed. I'm confident in its ability to reliably demonstrate the behavior we're examining.

Therefore, my next step is to proceed with outputting the C code that serves as this reproducer.


348/3 2026/08/15 18:22 action merge-strategy
0m Results:
map[CurrentReproStrategy:An analysis of the feedback and the kernel source code confirms that the race condition occurs between the destruction of the HTB root qdisc and the asynchronous perturbation timer of an SFQ child qdisc.

To trigger this reliably, we must ensure that:
1. **The race window is wide enough:** We can achieve this by adding a large number of classes (e.g., 100) to the HTB root qdisc. When the root is deleted, `htb_destroy()` will take a significant amount of time to iterate through and destroy all these classes.
2. **The SFQ queues are not empty:** The `sfq_perturbation()` timer callback only calls `sfq_rehash()` (which triggers the bug) if there are packets in the queue (`q->tail != NULL`). We must enqueue packets to each SFQ qdisc. By setting the HTB class rate to a very low value (e.g., `8bit`) and sending multiple packets, we guarantee they remain queued.
3. **The timing is perfectly aligned:** The SFQ timers are set to fire exactly 1 second after they are added. Since adding 100 classes takes some time, the timers will fire sequentially over a window of time. We measure the time it takes to set up the qdiscs and calculate the exact moment to delete the root qdisc so that `htb_destroy()` executes exactly in the middle of this window, guaranteeing a massive overlap.
4. **Fast and precise deletion:** Using `system("tc qdisc del ...")` introduces unpredictable delays due to `fork()` and `exec()`. We use a raw netlink socket to send the `RTM_DELQDISC` command directly, which is instantaneous and synchronous.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 100

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    delete_qdisc(ifindex);
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 100 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            // Rate is extremely low (8bit) to ensure packets stay in the queue
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to each class to ensure the SFQ queues are not empty
        char pkt[100] = {0};
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 5; p++) {
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // They were armed sequentially during the tc -batch execution.
        // We sleep for 1 second minus the time it took to setup, plus a random jitter
        // to wake up exactly when the timers are firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = 0;
            if (elapsed_us > 0) {
                jitter = rand_r(&seed) % (elapsed_us / 2 + 1);
            }
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```]

349/3 2026/08/15 18:22 agent repro-generator
5m Model:
best-expensive

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 1000

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = { .rate = 1, .linklayer = 1 },
        .ceil = { .rate = 1, .linklayer = 1 },
        .buffer = 1000, .cbuffer = 1000, .quantum = 1000, .prio = 0
    };
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct tc_sfq_qopt opt = {
        .perturb_period = 1,
        .limit = 1000,
        .divisor = 1024,
        .flows = 127
    };
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b) {
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == b->seq - 1) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) return -1;
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    
    int sndbuf = 2 * 1024 * 1024;
    int rcvbuf = 2 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int ifindex = get_ifindex("lo");
    if (ifindex < 0) {
        printf("[-] Failed to get ifindex for lo\n");
        close(nl_fd);
        return NULL;
    }
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        perror("socket AF_PACKET");
        close(nl_fd);
        return NULL;
    }
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char pkt[64] = {0};
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Starting race loop...\n");
    for (int iter = 0; iter < 50; iter++) {
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
        }
        struct nlmsghdr *last_n = NULL;
        for (int c = 1; c <= NUM_CLASSES; c++) {
            last_n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
        }
        if (last_n) last_n->nlmsg_flags |= NLM_F_ACK;
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        if (batch_send(nl_fd, &b) < 0) {
            printf("[-] batch_send failed\n");
            continue;
        }
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // The timers fire 1 second after they are armed.
        // We want to delete the root qdisc slightly before they fire.
        // We vary the sleep time to sweep across the race window.
        long sleep_us = 995000 - elapsed_us + (iter * 500); // 995ms to 1019.5ms
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit to let asynchronous destruction finish
        usleep(50000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    racer(NULL);
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

Instruction:
You are a security researcher with deep Linux kernel background.
Your goal is to generate a minimal, standalone C program for the strictly defensive
purpose of verifying a bugfix in an isolated environment.

To ensure that we can diagnose why a program might fail to run on the test environment,
you MUST include detailed logging and error checking in the generated C program:
1. Use 'printf(...)' for all progress messages and error logs.
2. Every system call (e.g., socket, bind, listen, connect, ioctl, send) must check for a failure return value.
3. If a call fails, it must print a specific error message including the function name
   and the error string (use strerror(errno)), and then exit with a non-zero status.
4. The program must print a message after every successful major step.
5. Generate code that follows this pattern for all operations:
    int res = do_something();
    if (res < 0) {
        printf("[-] Failed to do_something: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] do_something successful.\n");
6. The compilation and development environment (including compilers, build
   systems, makefiles, and kernel build/header directories) is NOT available
   on the target test VM guest. Do NOT check for, build, or reference any
   compilation tools, build files, or kernel development directories.
7. Do NOT execute shell commands or run external binaries (e.g. by using
   functions like 'system()', 'popen()', or the 'exec' family such as
   'execve()'). All environment checks, capability probings, and reproduction
   steps must be performed directly using standard Linux system calls (such
   as 'open', 'socket', 'ioctl', 'stat', etc.).
8. When reproducing asynchronous kernel timeouts or warnings, always
   include a sufficient delay (using sleep or similar) after deleting
   or unregistering the device to allow the kernel's asynchronous
   timeout to trigger before program exit.


=== PHASE 2: BUG REPRODUCTION (GENERATION) ===
You must now generate a full reproducer candidate attempting to trigger the target bug/crash.
Do NOT generate a probe program. Focus directly on triggering the bug/crash described in the description.
You can assume that all necessary kernel capabilities and privileges (e.g., access to /dev/vhci,
ability to load BPF programs, etc.) have already been verified and are available in the environment.

Do not spend too much time analyzing or trying to generate a perfect one-shot reproducer.
Instead, follow an iterative approach: generate a simple candidate, execute it, analyze the results,
and improve it. Keep your reasoning steps short and focused on the next logical experiment.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Strategy: An analysis of the feedback and the kernel source code confirms that the race condition occurs between the destruction of the HTB root qdisc and the asynchronous perturbation timer of an SFQ child qdisc.

To trigger this reliably, we must ensure that:
1. **The race window is wide enough:** We can achieve this by adding a large number of classes (e.g., 100) to the HTB root qdisc. When the root is deleted, `htb_destroy()` will take a significant amount of time to iterate through and destroy all these classes.
2. **The SFQ queues are not empty:** The `sfq_perturbation()` timer callback only calls `sfq_rehash()` (which triggers the bug) if there are packets in the queue (`q->tail != NULL`). We must enqueue packets to each SFQ qdisc. By setting the HTB class rate to a very low value (e.g., `8bit`) and sending multiple packets, we guarantee they remain queued.
3. **The timing is perfectly aligned:** The SFQ timers are set to fire exactly 1 second after they are added. Since adding 100 classes takes some time, the timers will fire sequentially over a window of time. We measure the time it takes to set up the qdiscs and calculate the exact moment to delete the root qdisc so that `htb_destroy()` executes exactly in the middle of this window, guaranteeing a massive overlap.
4. **Fast and precise deletion:** Using `system("tc qdisc del ...")` introduces unpredictable delays due to `fork()` and `exec()`. We use a raw netlink socket to send the `RTM_DELQDISC` command directly, which is instantaneous and synchronous.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 100

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    delete_qdisc(ifindex);
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 100 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            // Rate is extremely low (8bit) to ensure packets stay in the queue
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to each class to ensure the SFQ queues are not empty
        char pkt[100] = {0};
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 5; p++) {
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // They were armed sequentially during the tc -batch execution.
        // We sleep for 1 second minus the time it took to setup, plus a random jitter
        // to wake up exactly when the timers are firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = 0;
            if (elapsed_us > 0) {
                jitter = rand_r(&seed) % (elapsed_us / 2 + 1);
            }
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```


Previous Reproducer Attempt:
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 2000

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return;
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr32(struct nlmsghdr *n, int maxlen, int type, uint32_t data) {
    addattr_l(n, maxlen, type, &data, sizeof(uint32_t));
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

int send_nl_req(int fd, struct nlmsghdr *n) {
    static __thread int seq = 0;
    n->nlmsg_seq = ++seq;
    n->nlmsg_pid = getpid();
    
    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    struct iovec iov = { .iov_base = n, .iov_len = n->nlmsg_len };
    struct msghdr msg = {
        .msg_name = &nladdr,
        .msg_namelen = sizeof(nladdr),
        .msg_iov = &iov,
        .msg_iovlen = 1,
    };
    if (sendmsg(fd, &msg, 0) < 0) return -1;
    
    char buf[4096];
    iov.iov_base = buf;
    iov.iov_len = sizeof(buf);
    
    while (1) {
        int len = recvmsg(fd, &msg, 0);
        if (len < 0) return -1;
        struct nlmsghdr *ret_n = (struct nlmsghdr *)buf;
        for (; NLMSG_OK(ret_n, len); ret_n = NLMSG_NEXT(ret_n, len)) {
            if (ret_n->nlmsg_seq != n->nlmsg_seq) continue;
            if (ret_n->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(ret_n);
                if (err->error == 0) return 0;
                return err->error;
            }
            if (ret_n->nlmsg_type == NLMSG_DONE) return 0;
        }
    }
    return 0;
}

int create_dummy(int fd, const char *name) {
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWLINK,
        .i.ifi_family = AF_UNSPEC,
    };
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    return send_nl_req(fd, &req.n);
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int add_qdisc_htb(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_glob gopt = {
        .version = 3,
        .rate2quantum = 10,
        .defcls = 1,
        .debug = 0,
        .direct_pkts = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_class_htb(int fd, int ifindex, uint32_t parent, uint32_t classid) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWTCLASS,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = classid,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "htb");
    
    struct rtattr *opts = addattr_nest(&req.n, sizeof(req), TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = {
            .rate = 1,
            .linklayer = 1,
        },
        .ceil = {
            .rate = 1,
            .linklayer = 1,
        },
        .buffer = 1000,
        .cbuffer = 1000,
        .quantum = 1000,
        .prio = 0,
    };
    addattr_l(&req.n, sizeof(req), TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(&req.n, opts);
    
    return send_nl_req(fd, &req.n);
}

int add_qdisc_sfq(int fd, int ifindex, uint32_t handle, uint32_t parent) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
        .n.nlmsg_type = RTM_NEWQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = parent,
        .t.tcm_handle = handle,
    };
    addattr_str(&req.n, sizeof(req), TCA_KIND, "sfq");
    
    struct tc_sfq_qopt opt = {
        .perturb_period = 1, // 1 second
        .limit = 1000,
        .divisor = 1024,
        .flows = 127,
    };
    addattr_l(&req.n, sizeof(req), TCA_OPTIONS, &opt, sizeof(opt));
    
    return send_nl_req(fd, &req.n);
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    return send_nl_req(fd, &req.n);
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    create_dummy(nl_fd, ifname);
    bring_up(ifname);
    
    int ifindex = get_ifindex(ifname);
    if (ifindex < 0) {
        close(nl_fd);
        return NULL;
    }
    
    unsigned int seed = time(NULL) + id;
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char buf[64] = {0};
    
    for (int iter = 0; iter < 10; iter++) {
        // 1. Add HTB root
        if (add_qdisc_htb(nl_fd, ifindex, TC_H_MAKE(1<<16, 0), TC_H_ROOT) < 0) {
            printf("[-] Failed to add HTB root\n");
            continue;
        }
        
        // 2. Add classes
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_class_htb(nl_fd, ifindex, TC_H_ROOT, TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add HTB class %d\n", c);
                break;
            }
        }
        
        struct timespec start, end, after_send;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        // 3. Add SFQ qdiscs
        for (int c = 1; c <= NUM_CLASSES; c++) {
            if (add_qdisc_sfq(nl_fd, ifindex, TC_H_MAKE((c + 1) << 16, 0), TC_H_MAKE(1<<16, c)) < 0) {
                printf("[-] Failed to add SFQ qdisc %d\n", c);
                break;
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        
        // 4. Send packets
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, buf, sizeof(buf), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &after_send);
        
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        long send_us = (after_send.tv_sec - end.tv_sec) * 1000000 + (after_send.tv_nsec - end.tv_nsec) / 1000;
        
        // 5. Sleep to align with 1s timer
        long sleep_us = 1000000 - (elapsed_us / 2) - send_us;
        while (sleep_us < 0) {
            sleep_us += 1000000;
        }
        long jitter = (rand_r(&seed) % 50000) - 25000;
        if (sleep_us + jitter > 0) {
            usleep(sleep_us + jitter);
        }
        
        // 6. Delete root
        del_qdisc_root(nl_fd, ifindex);
    }
    
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    bring_up("lo");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(2);
    
    printf("[+] Done.\n");
    return 0;
}




Execution Results & Debugging Feedback:
The reproduction attempt failed because the generated program did not properly trigger the race condition. The bug is a race condition between the SFQ perturbation timer (`sfq_perturbation`) and the destruction of its parent qdisc (e.g., HTB).

In `sfq_perturbation`, if there are packets in the queue (`q->tail != NULL`), it calls `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent qdisc using `qdisc_lookup_rcu`. Concurrently, if the parent qdisc is being destroyed, it is removed from the qdisc hash table via `qdisc_hash_del` (called from `__qdisc_destroy`). If the timer fires exactly after the parent is removed from the hash table but before the child SFQ qdisc is destroyed (which would cancel the timer), `qdisc_lookup_rcu` returns NULL, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

To trigger this race, the reproducer must:
1. Create a parent qdisc (e.g., HTB) and a class.
2. Create an SFQ qdisc as a child of the class, with `perturb` set to 1 second (the minimum non-zero value).
3. Enqueue at least one packet into the SFQ qdisc so that `q->tail` is non-NULL (e.g., by setting the HTB rate to a very low value and sending a packet through the interface).
4. **CRITICAL**: Wait for approximately 1 second for the timer to be ready to fire.
5. Delete the parent qdisc.

The syzkaller reproducer likely failed because it executed netlink commands in a tight loop without waiting for the 1-second `perturb_period` to elapse, meaning the timer never fired. You should write a C program that sets up the qdiscs, sends a packet, sleeps for ~1 second (e.g., `usleep(995000)`), and then deletes the root qdisc, repeating this in a loop with slight timing variations to hit the race window.

350/4 2026/08/15 18:22 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 11405
							output: 39
							thoughts: 617
						

Thoughts:
**My Thoughts on Reproducing the `qdisc_tree_reduce_backlog` Race Condition**

My primary objective here is to reliably trigger a specific WARNING within the `qdisc_tree_reduce_backlog` function. This warning is apparently caused by a race condition that occurs when the `sfq_perturbation` timer and the destruction of a parent qdisc become unsynchronized.

I've reviewed the previous approach, which involved setting up a large number of classes (2000) and SFQ qdiscs, sending packets, and then introducing a sleep period of roughly one second. However, the feedback I received suggests this method was flawed. The core issue, as I understand it, is that the netlink commands were likely executed too rapidly. The `perturb_period` of the timer, which is set to 1 second, never actually had a chance to expire before the operations were repeated. Consequently, the timer never fired, and the intended race window was never hit.

The suggested remedy is to construct a C program that more precisely orchestrates the timing. The plan is to:
1. Set up the necessary qdiscs.
2. Send a single packet.
3. Crucially, sleep for approximately 1 second. The example `usleep(995000)` is a good indication of the required precision. This sleep is intended to allow the `sfq_perturbation` timer to fire.
4. Immediately after the sleep, initiate the deletion of the root qdisc.
5. Repeat this sequence in a loop, introducing slight variations in the timing. This variation is key to increasing the probability of hitting the race window between the timer firing and the parent qdisc destruction.

Reflecting on the previous sleep logic:
```c
        // 5. Sleep to align with 1s timer
        long sleep_us = 1000000 - (elapsed_us / 2) - send_us;
        while (sleep_us < 0) {
            sleep_us += 1000000;
        }
        long jitter = (rand_r(&seed) % 50000) - 25000;
        if (sleep_us + jitter > 0) {
            usleep(sleep_us + jitter);
        }
```
I suspect the complexity of this calculation, combined with the overhead of creating 2000 classes and qdiscs, might have been the underlying problem. The setup phase itself could have taken too long, meaning the timer might have either already fired prematurely or not fired at all within the intended window.

Now, let me re-examine the context of `qdisc_tree_reduce_backlog`. I recall it being called from `sfq_rehash` when `q->tail` is not `NULL`. However, I've also noted that `sfq_rehash` itself seems to call `qdisc_tree_reduce_backlog(sch, 0, 0)`. This seems counterintuitive, as the latter part of my recollection suggests that `sfq_rehash` is primarily concerned with dropping packets when limits are exceeded. I need to clarify this by checking the exact implementation of `qdisc_tree_reduce_backlog` in `net/sched/sch_api.c` and `sfq_rehash` in `net/sched/sch_sfq.c`. My immediate thought is that the `(0, 0)` arguments might not be the correct ones when called from `sfq_rehash` in a way that leads to the desired race.


351/4 2026/08/15 18:23 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

352/4 2026/08/15 18:23 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 13260
							output: 38
							thoughts: 402
						

Thoughts:
**My Thought Process Regarding `qdisc_tree_reduce_backlog` and `sfq_rehash` Packet Dropping**

Okay, so I'm looking at `qdisc_tree_reduce_backlog` and how it interacts with `sfq_rehash`. My first observation is that this function can return immediately if both `dropped` (which is `n` in the code) and `drop_len` (which is `len`) are zero. This immediately tells me that to actually *do* anything, we *must* be dropping packets during `sfq_rehash`.

This then leads me to the question: how exactly are packets dropped during `sfq_rehash`? I know that `sfq_rehash` drops packets under two primary conditions:
1. When the number of active flows (`x`) exceeds `SFQ_MAX_FLOWS` (meaning there are no free slots available).
2. When the queue length of a specific slot (`slot->qlen`) reaches or exceeds `q->maxdepth`.

Now, I need to be careful here. `q->maxdepth` is defined as the maximum number of packets allowed *per flow*. If I try to enqueue more packets than this limit into a *single* flow, `sfq_enqueue` will drop them. But the confusion arises when considering `sfq_rehash`. If packets are already in a queue, how could they *then* exceed `q->maxdepth` during `sfq_rehash`?

The key insight here is the perturbation applied during `sfq_rehash`. This perturbation changes the hash value of the packets. Crucially, packets that were previously hashing to *different* flows might, after perturbation, hash to the *same* flow. If this new, combined flow now contains more packets than `q->maxdepth`, those packets will be dropped.

Alternatively, I considered if the issue might be related to exceeding `SFQ_MAX_FLOWS`. However, I recall that the *total* number of packets in the system is bounded by `q->limit`, not necessarily the number of active flows directly contributing to drops in this specific scenario.

Therefore, the core mechanism for dropping packets during `sfq_rehash` boils down to this: we need a situation where packets that were initially in distinct flows now hash to the same flow after perturbation, and the cumulative number of packets in that new, consolidated flow exceeds `q->maxdepth`.

This also makes me pause and think about `q->maxdepth` itself. It's not a fixed value; it can be dynamically calculated or set. I should probably go back and check how `sfq_init` and `sfq_change` handle `q->maxdepth` to fully understand the context of this dynamic limit.


353/4 2026/08/15 18:23 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

354/4 2026/08/15 18:23 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15662
							output: 38
							thoughts: 1123
						

Thoughts:
**My Thought Process Regarding SFQ Packet Dropping and Rehashing**

Okay, so I'm digging into the SFQ (Stochastic Fairness Queueing) scheduler's behavior, specifically focusing on how packets get dropped, particularly during the rehashing process. It seems like a key area for potential issues and for understanding the limits of the algorithm.

Initially, I'm looking at the `sfq_change` function. My understanding is that it sets `q->perturb_period` and then starts the perturbation timer. The `perturb_period` is specified in seconds, and internally it gets multiplied by `HZ` (clock ticks per second), so a value of `1` effectively means 1 second.

A thought that pops into my head is: "Can I force a rehash by setting `perturb_period` to 0 and then calling `sfq_change` again?" But then I quickly realize that the `sfq_rehash` function itself isn't directly called from `sfq_change`. Instead, `sfq_rehash` is invoked *within* the `sfq_perturbation` function, which is the callback for the timer.

Looking at the `sfq_perturbation` code, I see that `sfq_rehash` is called under a specific condition: `if (!q->filter_list && q->tail)`. The `q->tail` part makes sense; if there are packets in the queue, `q->tail` won't be NULL. The `!q->filter_list` condition implies that rehashing happens when there are no active filters or when we're dealing with the default behavior.

So, the timer fires, and if the conditions are met, a rehash occurs. The perturbation timer is reset with `mod_timer(&q->perturb_timer, jiffies + p_period);`. If `p_period` (which is derived from `q->perturb_period`) is non-zero, the timer will fire again after that interval.

The question arises: can I set `q->perturb_period` to a *smaller* non-zero value than 1 second? The `ctl->perturb_period` is indeed in seconds, and `q->perturb_period = ctl->perturb_period * HZ;`. This means the smallest *non-zero* value for the internal `q->perturb_period` that's relevant to the timer is 1 second (when `ctl->perturb_period` is 1). I can't get a finer-grained perturbation interval with this mechanism.

Now, I shift my focus to how packets are *actually dropped* during `sfq_rehash`. I recall that when using `tc_sfq_qopt_v1`, we can set `maxdepth` and `limit`. This is where things get interesting.

My hypothesis: if I set `limit` to a small value (say, 2) and `maxdepth` to an even smaller value (say, 1), I can engineer a scenario for packet drops. If I enqueue two packets, they might initially hash to different flows and both be accepted. *However*, when `sfq_rehash` runs, due to the random perturbation, these two packets might end up hashing to the *same* flow. Since `maxdepth` is 1, the second packet that hashes to this now-occupied flow would be dropped. This would guarantee `dropped > 0` and trigger `qdisc_tree_reduce_backlog`.

Let's refine this. The condition for dropping in `sfq_rehash` is `slot->qlen >= q->maxdepth`. So, if `maxdepth` is 1, and two packets hash to the same slot, the second one gets dropped. This seems like a reliable way to induce drops during rehash.

To increase the *probability* of collisions during rehashing, I consider the `divisor`. A smaller `divisor` means a larger chance of packets hashing to the same bucket. `divisor` must be a power of 2. If `divisor` is 16, the chance of collision is 1/16. If I enqueue 16 packets and `maxdepth` is 1, they *all* need to hash to different flows initially to be accepted. The chance of that is tiny.

However, the core issue seems to be the `maxdepth` check during `sfq_rehash`. If `maxdepth` is 1, and multiple packets land in the same bucket after rehashing, they will be dropped. This is the critical factor.

I also ponder if there are other drop conditions. What about `SFQ_MAX_FLOWS`? The `sfq_rehash` drops packets if `x >= SFQ_MAX_FLOWS`. However, `x` comes from `q->dep[0].next`, which is bounded by `q->maxflows`. And `q->maxflows` itself is capped at `SFQ_MAX_FLOWS`. So, it seems like `sfq_rehash` should *never* run out of free slots for *new* flow entries because the number of active flows before rehash is exactly the number of flows that were there, which is at most `q->maxflows`. The only way to drop packets within `sfq_rehash` appears to be the `slot->qlen >= q->maxdepth` condition.

So, to summarize my current thinking: the primary mechanism for forcing packet drops during `sfq_rehash` involves setting `maxdepth` to a small value (like 1) and then relying on the random perturbation to cause multiple packets to hash to the same flow bucket. The `limit` parameter influences how many packets can be enqueued before the scheduler starts enforcing queue limits, but the `maxdepth` during rehash is the direct drop trigger in this context. I need to double-check `sfq_init` to ensure there aren't any subtle initialization behaviors that might affect this.


355/4 2026/08/15 18:23 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_init]

Results:
map[SourceCode: 777:	static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
 778:			    struct netlink_ext_ack *extack)
 779:	{
 780:		struct sfq_sched_data *q = qdisc_priv(sch);
 781:		int i;
 782:		int err;
 783:	
 784:		q->sch = sch;
 785:		timer_setup(&q->perturb_timer, sfq_perturbation, TIMER_DEFERRABLE);
 786:	
 787:		err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
 788:		if (err)
 789:			return err;
 790:	
 791:		for (i = 0; i < SFQ_MAX_DEPTH + 1; i++) {
 792:			q->dep[i].next = i + SFQ_MAX_FLOWS;
 793:			q->dep[i].prev = i + SFQ_MAX_FLOWS;
 794:		}
 795:	
 796:		q->limit = SFQ_MAX_DEPTH;
 797:		q->maxdepth = SFQ_MAX_DEPTH;
 798:		q->cur_depth = 0;
 799:		q->tail = NULL;
 800:		q->divisor = SFQ_DEFAULT_HASH_DIVISOR;
 801:		q->maxflows = SFQ_DEFAULT_FLOWS;
 802:		q->quantum = psched_mtu(qdisc_dev(sch));
 803:		q->perturb_period = 0;
 804:		get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 805:	
 806:		if (opt) {
 807:			int err = sfq_change(sch, opt, extack);
 808:			if (err)
 809:				return err;
 810:		}
 811:	
 812:		q->ht = sfq_alloc(sizeof(q->ht[0]) * q->divisor);
 813:		q->slots = sfq_alloc(sizeof(q->slots[0]) * q->maxflows);
 814:		if (!q->ht || !q->slots) {
 815:			/* Note: sfq_destroy() will be called by our caller */
 816:			return -ENOMEM;
 817:		}
 818:	
 819:		for (i = 0; i < q->divisor; i++)
 820:			q->ht[i] = SFQ_EMPTY_SLOT;
 821:	
 822:		for (i = 0; i < q->maxflows; i++) {
 823:			slot_queue_init(&q->slots[i]);
 824:			sfq_link(q, i);
 825:		}
 826:		if (q->limit >= 1)
 827:			sch->flags |= TCQ_F_CAN_BYPASS;
 828:		else
 829:			sch->flags &= ~TCQ_F_CAN_BYPASS;
 830:		return 0;
 831:	}
 SourceFile:net/sched/sch_sfq.c]

356/4 2026/08/15 18:23 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 17726
							output: 42
							thoughts: 668
						

Thoughts:
**My Thought Process Regarding SFQ and Packet Dropping**

Okay, let me walk through my current thinking on this SFQ behavior. I'm trying to get a solid grasp on how packet drops can occur, especially with `maxdepth` set to 1 and during the `sfq_rehash` process.

First, I'm noticing that `SFQ_MAX_DEPTH` is set to 127. This is important because if I don't explicitly set a `maxdepth` for the queue discipline, it defaults to this value.

Now, what happens if I *do* set `maxdepth` to 1? My understanding is that this implies each individual flow within SFQ can only hold a single packet at a time. I'm also considering a scenario where I set a `limit` of 100. I recall that the `limit` for SFQ is inherently bounded by `maxdepth * maxflows`. Given `maxdepth` is 1 and assuming a typical `maxflows` (which defaults to 127, coincidentally the same as `SFQ_MAX_DEPTH`), my `limit` could theoretically be up to 127. So, if I set `maxdepth` to 1 and `limit` to 127, and then I send 127 packets.

With `maxdepth` being 1, each of those packets would indeed be intended for a separate flow, and that flow could only hold one packet. The crucial point here is what happens during `sfq_enqueue`. If all 127 packets were to hash to the *same* flow, then subsequent packets attempting to enter that flow would be dropped, as the flow is already at its `maxdepth` of 1. And if a packet is dropped during `sfq_enqueue`, it's essentially never even placed in the queue structure itself.

But, I'm also considering the initial stages. If I send, say, 10 packets, and the `divisor` (which determines the number of available flows, typically 1024) is high, the probability of these 10 packets hashing to unique flows is quite good. They'd likely all be accepted.

The real complexity emerges when `sfq_rehash` kicks in. This process involves perturbing the hashing algorithm, effectively changing how packets are assigned to flows. So, I'm asking myself: what's the likelihood that these 10 packets, which were initially distributed, will now collide and hash to the same flow after the rehash?

I've been doing some calculations based on the birthday problem approximation. With 10 packets and 1024 flows, the chance of at least two colliding is roughly `1 - exp(-10*9 / (2*1024))`, which comes out to about 4.3%. That's a relatively low probability.

However, if I increase the number of packets sent before the rehash, this probability jumps. For 30 packets, the collision chance becomes `1 - exp(-30*29 / 2048)`, around 34%. And if I send 50 packets, the probability is `1 - exp(-50*49 / 2048)`, a substantial 70%.

This leads me to a key concern: if I send 50 packets, there's a high probability of a collision during the rehash. A collision here means a packet will be dropped by SFQ because its intended flow is already occupied. And a dropped packet, according to my understanding, should trigger a call to `qdisc_tree_reduce_backlog`.

Now, I'm digging deeper into `qdisc_tree_reduce_backlog`. My initial thought was it's only called when `dropped > 0`. But then I realized, upon re-examining the code, that `qdisc_tree_reduce_backlog` is actually called *unconditionally* within `sfq_rehash` after the `dropped` count is updated. The relevant lines I'm looking at are:

```c
	WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
	qdisc_tree_reduce_backlog(sch, dropped, drop_len);
```

This is where my confusion is currently stemming from. It *appears* that `qdisc_tree_reduce_backlog` is called even if `dropped` is 0. I need to scrutinize the implementation of `qdisc_tree_reduce_backlog` itself more thoroughly to understand its behavior in this specific context. This seems like a critical detail for understanding the exact conditions under which the backlog is adjusted or other actions are taken, regardless of whether a packet was explicitly dropped by SFQ during the rehash.


357/4 2026/08/15 18:23 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

358/4 2026/08/15 18:23 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 19038
							output: 36
							thoughts: 1522
						

Thoughts:
**My Thought Process Unraveling the Kernel Race**

Okay, so I was digging into this kernel issue, specifically around `qdisc_tree_reduce_backlog`, and I had a moment of confusion. I *thought* I remembered seeing a specific check for `n == 0 && len == 0` in this function that would cause it to return early. However, when I went back to the actual source code, that check just isn't there in this particular kernel version. This is a significant realization: `qdisc_tree_reduce_backlog` is *always* executed, even if no packets were actually dropped (i.e., `dropped == 0`).

This immediately changes my perspective on how to trigger the bug. If the function always runs, then the focus shifts from forcing drops to ensuring that `sfq_rehash` gets called. `sfq_rehash` is triggered when `!q->filter_list && q->tail`. Therefore, all I really need is for `q->tail` to be non-NULL, meaning the queue isn't empty. This implies I simply need to enqueue at least one packet and then wait for the SFQ timer to fire.

Now, this leads me to question why my previous attempts to reproduce the bug failed. I was relying on a specific sleep calculation to align with a 1-second timer:
```c
        // 5. Sleep to align with 1s timer
        long sleep_us = 1000000 - (elapsed_us / 2) - send_us;
        while (sleep_us < 0) {
            sleep_us += 1000000;
        }
        long jitter = (rand_r(&seed) % 50000) - 25000;
        if (sleep_us + jitter > 0) {
            usleep(sleep_us + jitter);
        }
```
The problem here is that `elapsed_us` was the time taken to add 2000 classes and SFQ qdiscs. If this operation took, say, 2 seconds, then `sleep_us` would end up being negative. After the correction (`sleep_us += 1000000`), I would be sleeping for approximately 1 second. However, the timers were *already added* during those 2 seconds. The first timer, set to fire at `T = 1s`, would have *already fired* by the time I intended to sleep. When that timer fired, the root qdisc wasn't being deleted, so there was no race condition. Then, when I finally deleted the root qdisc at `T = 2s + 1s = 3s`, all the timers had already completed their execution, and the race condition never materialized.

The key is to ensure the timers fire *exactly* when the root qdisc is being deleted. My previous approach of adding 2000 classes was too time-consuming and unpredictable. A simpler approach is needed.

What if I just add a single class and a single SFQ qdisc? The issue with that is that deleting the root qdisc would be very fast, and the race window might be too small. The race I'm trying to exploit is:

*   **CPU 1:** `sfq_perturbation` -> `sfq_rehash` -> `qdisc_tree_reduce_backlog`
*   **CPU 2:** `tc qdisc del root` -> `__qdisc_destroy` -> `qdisc_hash_del`

During `qdisc_tree_reduce_backlog`, the code reads `sch->parent` and then calls `qdisc_lookup_rcu`. The problem arises if `qdisc_lookup_rcu` returns `NULL` because the parent qdisc has already been removed from the hash table (by `qdisc_hash_del` on CPU 2). Crucially, `sch->parent` *doesn't* get updated when the parent is destroyed; the child is simply destroyed later. So, the sequence of events that creates the race is:

1.  CPU 2: `qdisc_hash_del(parent)`
2.  CPU 1: `qdisc_lookup_rcu(parent)` returns `NULL`.
3.  CPU 2: `qdisc_destroy(child)` -> `timer_delete_sync(&q->perturb_timer)` (or similar timer cleanup).

If I only have one class, `qdisc_destroy(parent)` will immediately destroy the child. This makes the window between `qdisc_hash_del(parent)` and `timer_delete_sync(child)` incredibly small.

To widen this window, I need to perform the parent deletion *before* the child's timer cleanup is complete. The way to do this is to have many child qdiscs associated with the parent. Instead of adding them sequentially and then triggering the delete, I should add a large number of classes *before* I start the deletion process.

My latest idea is to create the HTB root, then add a large number of classes (say, 1000). For each of these classes, I'll add an SFQ qdisc, but I'll initially set their `perturb_period` to `0`. This means their timers won't be actively firing immediately. Then, I can use `tc qdisc change` to set the `perturb_period` to `1` for all of them. However, performing `tc qdisc change` on 1000 qdiscs will also take a noticeable amount of time, potentially still making the race window too tight.

This leads me to consider a hybrid approach. What if I add 1000 classes, and then for *just one* of those classes, I add an SFQ qdisc with `perturb_period = 1`? If I add this SFQ qdisc as the *last* class, then when the root qdisc is destroyed, `htb_destroy` will be called. I need to examine how `htb_destroy` handles its children to understand the order of destruction and if this creates a sufficient window.


359/4 2026/08/15 18:23 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy]

Results:
map[SourceCode:1618:	static void htb_destroy(struct Qdisc *sch)
1619:	{
1620:		struct net_device *dev = qdisc_dev(sch);
1621:		struct tc_htb_qopt_offload offload_opt;
1622:		struct htb_sched *q = qdisc_priv(sch);
1623:		struct hlist_node *next;
1624:		bool nonempty, changed;
1625:		struct htb_class *cl;
1626:		unsigned int i;
1627:	
1628:		cancel_work_sync(&q->work);
1629:		qdisc_watchdog_cancel(&q->watchdog);
1630:		/* This line used to be after htb_destroy_class call below
1631:		 * and surprisingly it worked in 2.4. But it must precede it
1632:		 * because filter need its target class alive to be able to call
1633:		 * unbind_filter on it (without Oops).
1634:		 */
1635:		tcf_block_put(q->block);
1636:	
1637:		for (i = 0; i < q->clhash.hashsize; i++) {
1638:			hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
1639:				tcf_block_put(cl->block);
1640:				cl->block = NULL;
1641:			}
1642:		}
1643:	
1644:		do {
1645:			nonempty = false;
1646:			changed = false;
1647:			for (i = 0; i < q->clhash.hashsize; i++) {
1648:				hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
1649:							  common.hnode) {
1650:					bool last_child;
1651:	
1652:					if (!q->offload) {
1653:						htb_destroy_class(sch, cl);
1654:						continue;
1655:					}
1656:	
1657:					nonempty = true;
1658:	
1659:					if (cl->level)
1660:						continue;
1661:	
1662:					changed = true;
1663:	
1664:					last_child = htb_parent_last_child(cl);
1665:					htb_destroy_class_offload(sch, cl, last_child,
1666:								  true, NULL);
1667:					qdisc_class_hash_remove(&q->clhash,
1668:								&cl->common);
1669:					if (cl->parent)
1670:						cl->parent->children--;
1671:					if (last_child)
1672:						htb_parent_to_leaf(sch, cl, NULL);
1673:					htb_destroy_class(sch, cl);
1674:				}
1675:			}
1676:		} while (changed);
1677:		WARN_ON(nonempty);
1678:	
1679:		qdisc_class_hash_destroy(&q->clhash);
1680:		__qdisc_reset_queue(&q->direct_queue);
1681:	
1682:		if (q->offload) {
1683:			offload_opt = (struct tc_htb_qopt_offload) {
1684:				.command = TC_HTB_DESTROY,
1685:			};
1686:			htb_offload(dev, &offload_opt);
1687:		}
1688:	
1689:		if (!q->direct_qdiscs)
1690:			return;
1691:		for (i = 0; i < q->num_direct_qdiscs && q->direct_qdiscs[i]; i++)
1692:			qdisc_put(q->direct_qdiscs[i]);
1693:		kfree(q->direct_qdiscs);
1694:	}
 SourceFile:net/sched/sch_htb.c]

360/4 2026/08/15 18:23 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 21753
							output: 38
							thoughts: 47
						

Thoughts:
**My Thought Process for `htb_destroy`**

Alright, so when I'm looking at the `htb_destroy` function, the first thing that jumps out at me is its iteration. It clearly loops through `q->clhash.hashsize`. This tells me it's going to process each element within that hash table structure, specifically keyed by class. For every class it encounters during this iteration, it's going to invoke `htb_destroy_class`, passing along the `sch` and the current `cl`. My immediate next step, naturally, is to dive into the implementation of `htb_destroy_class` to understand precisely what happens during that per-class destruction.


361/4 2026/08/15 18:23 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy_class]

Results:
map[SourceCode:1607:	static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
1608:	{
1609:		if (!cl->level) {
1610:			WARN_ON(!cl->leaf.q);
1611:			qdisc_put(cl->leaf.q);
1612:		}
1613:		gen_kill_estimator(&cl->rate_est);
1614:		tcf_block_put(cl->block);
1615:		kfree(cl);
1616:	}
 SourceFile:net/sched/sch_htb.c]

362/4 2026/08/15 18:23 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 22002
							output: 37
							thoughts: 106
						

Thoughts:
**My Thought Process Regarding `qdisc_put` and its Implications**

Okay, so my initial thought when encountering `qdisc_put(cl->leaf.q)` is that it's going to tear down that specific child qdisc, the one referenced by `cl->leaf.q`. That seems straightforward enough – a cleanup operation.

However, my mind immediately goes to the underlying mechanics. I know `qdisc_put` isn't just a simple deallocator. Its primary role is to decrement the reference count of a qdisc. The real destruction happens when that reference count hits zero. So, the question becomes: what *exactly* happens when `qdisc_put` sees that refcnt reach zero? Does it directly invoke destruction, or is there an intermediate step?

That leads me to recall that `qdisc_put` *does* indeed trigger `qdisc_destroy` when the reference count drops to zero. This is a crucial distinction because `qdisc_destroy` is where the more complex cleanup logic resides.

Now, my expert brain starts dissecting `qdisc_destroy`. A key part of qdisc management is its presence in the qdisc hash table for quick lookups. So, my next thought is: does `qdisc_destroy` handle removing the qdisc from this hash table? Specifically, does it call `qdisc_hash_del`?

Then, a bit of a doubt creeps in. I'm pretty sure `qdisc_hash_del` isn't called directly *within* the general `qdisc_destroy` path for *any* qdisc. My recollection is that it's a more specific operation, potentially tied to the root qdisc's destruction. I seem to remember it being called within `__qdisc_destroy` – but only under certain conditions, perhaps related to being the *root* qdisc.

To clarify these finer points and confirm my understanding, I need to dive into the actual implementations of `qdisc_put` and `qdisc_destroy`. This will involve tracing their execution paths and understanding how the reference counting, the invocation of `qdisc_destroy`, and the hash table management are all coordinated. I need to be absolutely sure about whether `qdisc_hash_del` is called by `qdisc_destroy` directly, or if it's a separate concern, and if so, under what circumstances.


363/4 2026/08/15 18:24 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_put]

Results:
map[SourceCode:1141:	void qdisc_put(struct Qdisc *qdisc)
1142:	{
1143:		if (!qdisc)
1144:			return;
1145:	
1146:		if (qdisc->flags & TCQ_F_BUILTIN ||
1147:		    !refcount_dec_and_test(&qdisc->refcnt))
1148:			return;
1149:	
1150:		__qdisc_destroy(qdisc);
1151:	}
 SourceFile:net/sched/sch_generic.c]

364/4 2026/08/15 18:24 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 22300
							output: 38
							thoughts: 11
						

Thoughts:
**My Thought Process on `__qdisc_destroy`**

Alright, so my immediate inclination is to dive into the internals of `__qdisc_destroy`. I need to understand precisely what happens when a queueing discipline is being torn down. This involves tracing the sequence of operations, examining how resources are reclaimed, and ensuring that no lingering dependencies or memory leaks are introduced. My focus will be on the critical path of destruction, looking for any potential race conditions or edge cases that might arise during this process. I’ll be scrutinizing the deallocation of associated data structures and any critical cleanup routines to confirm the integrity of the system post-destruction.


365/4 2026/08/15 18:24 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

366/4 2026/08/15 18:24 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 22731
							output: 71
							thoughts: 3678
						

Thoughts:
**The Elusive Race Condition: Unraveling the SFQ Timer and HTB Deletion Conundrum**

It's clear now, the core of this problem lies in the intricate dance between the SFQ timer mechanism and the destruction of the parent HTB qdisc, specifically when `qdisc_hash_del` is invoked. My initial thoughts were a bit scattered, focusing on the deletion of *every* qdisc, but the critical race is indeed around the *parent* qdisc's removal from the hash table.

When the root HTB qdisc is destroyed, `__qdisc_destroy` is called. This triggers `qdisc_hash_del(root)` first. Only then does the HTB-specific `ops->destroy(root)` – which is `htb_destroy` – come into play. `htb_destroy` meticulously iterates through all its child classes, calling `qdisc_put(cl->leaf.q)` for each. This `qdisc_put` eventually leads to `__qdisc_destroy(child)`, which in turn calls `qdisc_hash_del(child)` and then the child's specific `ops->destroy`, which for SFQ is `sfq_destroy`. The key action here is `sfq_destroy` calling `timer_delete_sync(&q->perturb_timer)`.

So, on the CPU handling the deletion (let's call it CPU 2), the sequence is:
1.  `qdisc_hash_del(root)`: The parent HTB is removed from the hash.
2.  `htb_destroy(root)`: Iteration over child classes begins.
3.  For each class:
    a.  `qdisc_hash_del(child)`: The child SFQ is removed from its own hash (this isn't the critical race).
    b.  `sfq_destroy(child)`: This ultimately calls `timer_delete_sync(child)`.

Meanwhile, on another CPU (CPU 1) managing the SFQ timers, the following might be happening:
1.  `sfq_perturbation(child)`: The timer fires.
2.  `sfq_rehash(child)`: If there are packets, rehashing occurs.
3.  `qdisc_tree_reduce_backlog(child)`: Backlog processing.
4.  `sch = qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`: Crucially, it attempts to look up the *parent* qdisc using its handle.
5.  If `sch == NULL`, a warning is issued! This is precisely what we're aiming for.

The race window, then, is the critical interval between `qdisc_hash_del(root)` on CPU 2 and the `timer_delete_sync(child)` call on CPU 2 (which is triggered by `sfq_destroy`). To maximize this window, having a large number of child classes is indeed the correct approach. The extensive iteration within `htb_destroy` directly lengthens the time the root qdisc is absent from the hash table.

My previous reproducer's logic of creating many classes was correct, but the timing of the SFQ timers was the downfall. The original intention was to have timers fire *during* the deletion process. The issue arose because `perturb_period = 1` and the sleep duration calculation was flawed. If the time taken to create the qdiscs (`elapsed_us`) exceeded the `perturb_period` (1 second), the timers for the earlier SFQ instances would have *already fired* before the root was even considered for deletion. Furthermore, if `elapsed_us` was greater than 1 second, the sleep calculation would result in a negative value, meaning no sleep occurred, and the root deletion would happen immediately after creation, potentially before any timers had a chance to fire.

The real insight came from examining `sfq_init` and `sfq_change`, and then the logic within `sfq_perturbation`. The critical detail is:
```c
	if (!q->filter_list && q->tail)
		sfq_rehash(sch);
```
If the SFQ timer fires *before* any packets have been sent to that specific SFQ instance, `q->tail` will be NULL. In this scenario, `sfq_rehash` is *not* called. Instead, `sfq_perturbation` simply rearms the timer for another `p_period` (e.g., 1 second). This means if packets arrive *after* this initial, non-rehashing timer firing, we'd have to wait another full second for the next timer event that *would* trigger a rehash.

This explains why the previous reproducer failed: the timers were armed at T=0. If it took >1 second to create the qdiscs, they fired at T=1s, found `q->tail` NULL, and were rescheduled for T=2s. Packets were sent at T=1.5s, and then the root was deleted at T=1.5s. By then, the timers were all scheduled for T=2s or later, completely missing the deletion window.

The solution is to ensure that `q->tail` is *not* NULL when the timer fires during the critical deletion window. This means we must send at least one packet to each SFQ instance *before* its timer fires for the first time. The most robust way to achieve this is to send a packet immediately after creating each SFQ qdisc.

My refined approach involves a loop where, for each class:
1.  An HTB class is added.
2.  An SFQ qdisc is added, attached to that class.
3.  A packet is sent to that class using `SO_PRIORITY` set to the classid. This ensures `q->tail` is populated.

This sequence guarantees that when the SFQ timers begin to fire (around 1 second after creation), they will find `q->tail` non-NULL, trigger `sfq_rehash`, and then rearm the timer. The crucial part is the timing of the root qdisc deletion. We need to calculate the time it takes to execute this setup loop (`elapsed_us`) and then sleep precisely until the first timers are expected to fire (`1,000,000 us - elapsed_us`). A small jitter is added to ensure the deletion falls within the timer firing period.

To broaden the race window further, using a larger number of classes (like 500) is necessary. This makes the `htb_destroy` iteration take longer, increasing the overlap with the SFQ timers. The setup loop for 500 classes is estimated to take around 200ms, meaning timers will fire between 1s and 1.2s. If we delete the root at approximately 1s, the deletion process (taking tens of milliseconds) will directly overlap with the firing of many SFQ timers, providing the perfect conditions for the `sch == NULL` warning.

A potential optimization to further minimize `elapsed_us` and ensure tight timing would be to send multiple netlink messages in a single `sendmsg` call or to disable `NLM_F_ACK` for individual requests when adding classes and qdiscs, only waiting for acknowledgment on the final operation. This minimizes the overhead of netlink communication, ensuring that the creation of a large number of qdiscs happens quickly enough that `elapsed_us` remains well below 1 second, allowing the sleep and deletion to align correctly with the first timer firings.


367/4 2026/08/15 18:24 tool codeexpert
1m Args:
map[Question:How can I send multiple netlink messages (e.g. RTM_NEWTCLASS, RTM_NEWQDISC) efficiently in C without waiting for ACK for each one, to minimize the time it takes to setup 500 classes and qdiscs?]

Results:
map[Answer:To setup 500 qdiscs and classes efficiently in C without waiting for an ACK on each message, you can combine **Message Batching** (packing multiple Netlink messages into a single buffer/datagram) with **Selective ACKs** (ACK barrier pattern) and **Sequence Number Tracking**.

---

### Core Concepts & Netlink Mechanics

1. **Buffer Batching (Packing Messages into a Single Datagram)**:
   Netlink supports concatenating multiple Netlink messages (`struct nlmsghdr` + payload) back-to-back in a single buffer, aligned to 4-byte boundaries (`NLMSG_ALIGN`). When sent in a single `send()` or `sendmsg()` system call, the kernel’s `netlink_rcv_skb()` processes all messages sequentially in a single kernel execution loop without context-switching back to user space.

2. **Selective `NLM_F_ACK` (ACK Barrier Pattern)**:
   - In Linux netlink (`net/netlink/af_netlink.c`), an ACK message (`NLMSG_ERROR` with `error == 0`) is sent **only** if `NLM_F_ACK` is set in `nlmsg_flags`.
   - If `NLM_F_ACK` is **omitted**, successful commands generate **zero response packets**, eliminating round-trip latency.
   - If an error occurs during processing (`err != 0`), the kernel **always** generates an `NLMSG_ERROR` containing the negative error code (`-errno`) regardless of `NLM_F_ACK`.
   - By setting `NLM_F_ACK` **only on the last message** (e.g., message 500), that final ACK acts as a **synchronization barrier**: receiving it confirms that the kernel has finished processing all preceding messages.

3. **Sequence Number Tracking (`nlmsg_seq`)**:
   Assign an incrementing sequence number (e.g. 1 to 500) to each message. If any intermediate message fails, the `NLMSG_ERROR` returned by the kernel includes the `nlmsg_seq` of the exact request that failed.

4. **Socket Buffer Tuning**:
   Increase socket buffer limits with `SO_SNDBUF` and `SO_RCVBUF` to prevent `ENOBUFS` errors when sending large batches.

---

### C Code Implementation Example

```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>

#define BATCH_SIZE 500
#define BUF_SIZE (64 * 1024)

int main(void) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) {
        perror("socket");
        return 1;
    }

    // 1. Expand socket buffers to handle batch volume
    int sndbuf = 1024 * 1024;
    int rcvbuf = 1024 * 1024;
    setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));

    struct sockaddr_nl sa = { .nl_family = AF_NETLINK };
    if (bind(fd, (struct sockaddr *)&sa, sizeof(sa)) < 0) {
        perror("bind");
        close(fd);
        return 1;
    }

    char *buf = malloc(BUF_SIZE);
    int offset = 0;
    uint32_t seq_start = 1;

    // 2. Pack 500 messages into the batch buffer
    for (int i = 0; i < BATCH_SIZE; i++) {
        uint32_t current_seq = seq_start + i;

        // Ensure buffer room
        if (offset + NLMSG_SPACE(sizeof(struct tcmsg)) > BUF_SIZE) {
            fprintf(stderr, "Buffer overflow, flush batch here if needed\n");
            break;
        }

        struct nlmsghdr *nlh = (struct nlmsghdr *)(buf + offset);
        nlh->nlmsg_type = RTM_NEWTCLASS; // or RTM_NEWQDISC
        nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
        nlh->nlmsg_seq = current_seq;
        nlh->nlmsg_pid = getpid();

        // Standard request flags
        nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;

        // Barrier Pattern: Request ACK ONLY for the final message
        if (i == BATCH_SIZE - 1) {
            nlh->nlmsg_flags |= NLM_F_ACK;
        }

        struct tcmsg *tcm = (struct tcmsg *)NLMSG_DATA(nlh);
        memset(tcm, 0, sizeof(*tcm));
        tcm->tcm_family = AF_UNSPEC;
        tcm->tcm_ifindex = 2; // Target network interface index (e.g. eth0)
        tcm->tcm_parent = TC_H_ROOT;
        tcm->tcm_handle = TC_H_MAKE(1 << 16, i + 1); // Example classid/handle

        // Add TCA_* netlink attributes here if needed using RTA_* macros

        offset += NLMSG_ALIGN(nlh->nlmsg_len);
    }

    // 3. Send the entire batch in ONE system call
    ssize_t sent = send(fd, buf, offset, 0);
    if (sent < 0) {
        perror("send");
        free(buf);
        close(fd);
        return 1;
    }

    // 4. Drain responses until final ACK (or errors) arrive
    uint32_t final_seq = seq_start + BATCH_SIZE - 1;
    int finished = 0;

    while (!finished) {
        ssize_t len = recv(fd, buf, BUF_SIZE, 0);
        if (len < 0) {
            perror("recv");
            break;
        }

        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);

                if (err->error == 0) {
                    // Success ACK for a message with NLM_F_ACK set
                    if (nlh->nlmsg_seq == final_seq) {
                        printf("Batch complete! All 500 commands processed successfully.\n");
                        finished = 1;
                    }
                } else {
                    // An error occurred for a specific command sequence number
                    fprintf(stderr, "Command with seq %u failed: %s (%d)\n",
                            nlh->nlmsg_seq, strerror(-err->error), err->error);
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }

    free(buf);
    close(fd);
    return 0;
}
```

---

### Summary of Performance Optimizations
1. **Single `send()` invocation**: Reduces 500 system calls to 1 system call.
2. **Zero ACK overhead for intermediate commands**: Eliminates 499 round-trip reply messages from the kernel.
3. **Barrier synchronization**: Setting `NLM_F_ACK` only on message #500 guarantees all previous messages were processed once its ACK is received.
4. **Explicit error detection**: Any failed operation still generates an `NLMSG_ERROR` message containing `nlmsg_seq`, so error reporting remains 100% reliable.]

368/5 2026/08/15 18:24 agent codeexpert
1m Model:
good-balanced

Results:
map[Answer:To setup 500 qdiscs and classes efficiently in C without waiting for an ACK on each message, you can combine **Message Batching** (packing multiple Netlink messages into a single buffer/datagram) with **Selective ACKs** (ACK barrier pattern) and **Sequence Number Tracking**.

---

### Core Concepts & Netlink Mechanics

1. **Buffer Batching (Packing Messages into a Single Datagram)**:
   Netlink supports concatenating multiple Netlink messages (`struct nlmsghdr` + payload) back-to-back in a single buffer, aligned to 4-byte boundaries (`NLMSG_ALIGN`). When sent in a single `send()` or `sendmsg()` system call, the kernel’s `netlink_rcv_skb()` processes all messages sequentially in a single kernel execution loop without context-switching back to user space.

2. **Selective `NLM_F_ACK` (ACK Barrier Pattern)**:
   - In Linux netlink (`net/netlink/af_netlink.c`), an ACK message (`NLMSG_ERROR` with `error == 0`) is sent **only** if `NLM_F_ACK` is set in `nlmsg_flags`.
   - If `NLM_F_ACK` is **omitted**, successful commands generate **zero response packets**, eliminating round-trip latency.
   - If an error occurs during processing (`err != 0`), the kernel **always** generates an `NLMSG_ERROR` containing the negative error code (`-errno`) regardless of `NLM_F_ACK`.
   - By setting `NLM_F_ACK` **only on the last message** (e.g., message 500), that final ACK acts as a **synchronization barrier**: receiving it confirms that the kernel has finished processing all preceding messages.

3. **Sequence Number Tracking (`nlmsg_seq`)**:
   Assign an incrementing sequence number (e.g. 1 to 500) to each message. If any intermediate message fails, the `NLMSG_ERROR` returned by the kernel includes the `nlmsg_seq` of the exact request that failed.

4. **Socket Buffer Tuning**:
   Increase socket buffer limits with `SO_SNDBUF` and `SO_RCVBUF` to prevent `ENOBUFS` errors when sending large batches.

---

### C Code Implementation Example

```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>

#define BATCH_SIZE 500
#define BUF_SIZE (64 * 1024)

int main(void) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) {
        perror("socket");
        return 1;
    }

    // 1. Expand socket buffers to handle batch volume
    int sndbuf = 1024 * 1024;
    int rcvbuf = 1024 * 1024;
    setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));

    struct sockaddr_nl sa = { .nl_family = AF_NETLINK };
    if (bind(fd, (struct sockaddr *)&sa, sizeof(sa)) < 0) {
        perror("bind");
        close(fd);
        return 1;
    }

    char *buf = malloc(BUF_SIZE);
    int offset = 0;
    uint32_t seq_start = 1;

    // 2. Pack 500 messages into the batch buffer
    for (int i = 0; i < BATCH_SIZE; i++) {
        uint32_t current_seq = seq_start + i;

        // Ensure buffer room
        if (offset + NLMSG_SPACE(sizeof(struct tcmsg)) > BUF_SIZE) {
            fprintf(stderr, "Buffer overflow, flush batch here if needed\n");
            break;
        }

        struct nlmsghdr *nlh = (struct nlmsghdr *)(buf + offset);
        nlh->nlmsg_type = RTM_NEWTCLASS; // or RTM_NEWQDISC
        nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
        nlh->nlmsg_seq = current_seq;
        nlh->nlmsg_pid = getpid();

        // Standard request flags
        nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;

        // Barrier Pattern: Request ACK ONLY for the final message
        if (i == BATCH_SIZE - 1) {
            nlh->nlmsg_flags |= NLM_F_ACK;
        }

        struct tcmsg *tcm = (struct tcmsg *)NLMSG_DATA(nlh);
        memset(tcm, 0, sizeof(*tcm));
        tcm->tcm_family = AF_UNSPEC;
        tcm->tcm_ifindex = 2; // Target network interface index (e.g. eth0)
        tcm->tcm_parent = TC_H_ROOT;
        tcm->tcm_handle = TC_H_MAKE(1 << 16, i + 1); // Example classid/handle

        // Add TCA_* netlink attributes here if needed using RTA_* macros

        offset += NLMSG_ALIGN(nlh->nlmsg_len);
    }

    // 3. Send the entire batch in ONE system call
    ssize_t sent = send(fd, buf, offset, 0);
    if (sent < 0) {
        perror("send");
        free(buf);
        close(fd);
        return 1;
    }

    // 4. Drain responses until final ACK (or errors) arrive
    uint32_t final_seq = seq_start + BATCH_SIZE - 1;
    int finished = 0;

    while (!finished) {
        ssize_t len = recv(fd, buf, BUF_SIZE, 0);
        if (len < 0) {
            perror("recv");
            break;
        }

        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);

                if (err->error == 0) {
                    // Success ACK for a message with NLM_F_ACK set
                    if (nlh->nlmsg_seq == final_seq) {
                        printf("Batch complete! All 500 commands processed successfully.\n");
                        finished = 1;
                    }
                } else {
                    // An error occurred for a specific command sequence number
                    fprintf(stderr, "Command with seq %u failed: %s (%d)\n",
                            nlh->nlmsg_seq, strerror(-err->error), err->error);
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }

    free(buf);
    close(fd);
    return 0;
}
```

---

### Summary of Performance Optimizations
1. **Single `send()` invocation**: Reduces 500 system calls to 1 system call.
2. **Zero ACK overhead for intermediate commands**: Eliminates 499 round-trip reply messages from the kernel.
3. **Barrier synchronization**: Setting `NLM_F_ACK` only on message #500 guarantees all previous messages were processed once its ACK is received.
4. **Explicit error detection**: Any failed operation still generates an `NLMSG_ERROR` message containing `nlmsg_seq`, so error reporting remains 100% reliable.]

Instruction:
You are a capable Linux kernel developer tasked with researching complex questions
about kernel source code. You will be given a concrete question, and need to provide
a concrete answer.
Use tools extensively while researching the question. Don't make assumptions,
or rely on your previous knowledge about the kernel source code, use available tools
to access the actual source code.
Use all available sources of information:
 - kernel source code
 - documentation in the Documentation dir in the source tree

Do not guess file names or file paths and attempt to read them without
verifying their existence first using content search or directory listing tools.
If a file, symbol, or directory is not found via content search (grepper) or
directory listing (codesearch-dir-index), treat it as completely absent.
Do not attempt to guess alternative names, extensions, or directories.

Tool Selection Guidelines:
1. For C functions, structs, and variables: Prefer codesearch-definition-source
   or codesearch-struct-layout FIRST to retrieve clean, exact definitions
   without line-number guessing.
2. If symbol lookup fails (e.g., preprocessor macros, macro-generated code, or
   disabled #ifdef branches), fall back to read-file or grepper.
3. For file headers, #include directives, preprocessor macro definitions, and
   non-C files (Kconfig, Makefiles, docs): Use read-file or grepper directly.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
How can I send multiple netlink messages (e.g. RTM_NEWTCLASS, RTM_NEWQDISC) efficiently in C without waiting for ACK for each one, to minimize the time it takes to setup 500 classes and qdiscs?

369/6 2026/08/15 18:24 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 2366
							output: 40
							thoughts: 654
						

Thoughts:
**My Thought Process on Efficient Netlink Message Sending**

Ah, I see the core of the problem here: I need to send a significant number of netlink messages, specifically `RTM_NEWTCLASS` and `RTM_NEWQDISC` requests, and I'm concerned about the latency introduced by waiting for an acknowledgment after each individual message. The goal is to minimize the setup time for around 500 such entities. This immediately brings to mind the underlying mechanisms of the Netlink protocol as implemented in the Linux kernel and how I can leverage them from a C application.

My initial understanding is that Netlink sockets aren't inherently designed to require an individual ACK for every single message sent. The protocol should support sending multiple messages in a single transmission or at least a more efficient acknowledgment scheme.

Specifically, I'm thinking about two primary avenues for achieving this efficiency:

1.  **Batching messages into a single datagram:** The Netlink protocol allows for multiple `struct nlmsghdr` messages to be concatenated together within a single buffer. If I can construct a single `sendmsg()` call that contains all 500 (or many of them) of my `RTM_NEWTCLASS` and `RTM_NEWQDISC` requests, the kernel's Netlink stack should be able to process them sequentially from that buffer. This would drastically reduce the number of system calls and network round trips. I recall that the kernel parses these messages back-to-back until the buffer is exhausted.

2.  **Strategic use of ACKs:** This is where I need to be careful. The `NLM_F_ACK` flag is crucial. If I set `NLM_F_ACK` on *every* message, then yes, I'll be waiting for an `NLMSG_ERROR` (with an error code of 0 for success) for each one, which is exactly what I want to avoid. However, if I *don't* set `NLM_F_ACK` for intermediate messages, the kernel *should* process them without sending an explicit success ACK. It will only send an `NLMSG_ERROR` if an actual error occurs during processing. This is a key insight: I can send a series of messages without `NLM_F_ACK` and only potentially wait for an ACK on the *last* message in the sequence, effectively using it as a synchronization point or a barrier to ensure all preceding messages were processed. Alternatively, I could omit `NLM_F_ACK` entirely and rely solely on error reporting if something goes wrong, though using it on the final message provides a clearer confirmation of completion.

I'm also considering the implications of flags like `NLM_F_MULTI`. While `NLM_F_MULTI` is often used for multi-part messages (where a single logical operation is split across multiple Netlink messages), the concept of sending multiple *independent* messages in one go might be achievable by simply concatenating them. I need to confirm if `NLM_F_MULTI` plays a direct role in sending multiple distinct `RTM_NEWTCLASS` or `RTM_NEWQDISC` requests as a single transmission event, or if it's more about breaking down a single, complex request.

To solidify my understanding, I'm planning to dive into the relevant parts of the Linux kernel's Netlink and rtnetlink handling code, perhaps using tools like `grepper` or code search, to see precisely how the kernel parses incoming Netlink buffers, how it handles the `NLM_F_ACK` flag, and if there are any other socket options, specific batching mechanisms, or flags that are particularly relevant for this high-throughput scenario. I want to ensure I'm not overlooking any subtle details in how `libnl` or `iproute2` might abstract or utilize these kernel features, though my focus is on the raw C implementation here.


370/6 2026/08/15 18:24 tool grepper
0m Args:
map[Expression:netlink_rcv_skb|netlink_run_queue PathPrefix:net/netlink/]

Results:
map[Output:net/netlink/af_netlink.c=2528=EXPORT_SYMBOL(netlink_ack);
net/netlink/af_netlink.c-2529-
net/netlink/af_netlink.c:2530:int netlink_rcv_skb(struct sk_buff *skb, int (*cb)(struct sk_buff *,
net/netlink/af_netlink.c-2531-						   struct nlmsghdr *,
--
net/netlink/af_netlink.c-2572-}
net/netlink/af_netlink.c:2573:EXPORT_SYMBOL(netlink_rcv_skb);
net/netlink/af_netlink.c-2574-
--
net/netlink/genetlink.c=1215=static void genl_rcv(struct sk_buff *skb)
--
net/netlink/genetlink.c-1217-	down_read(&cb_lock);
net/netlink/genetlink.c:1218:	netlink_rcv_skb(skb, &genl_rcv_msg);
net/netlink/genetlink.c-1219-	up_read(&cb_lock);
]

371/6 2026/08/15 18:24 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 3369
							output: 30
							thoughts: 46
						

Thoughts:
**A Deep Dive into Netlink and Routing Message Handling**

My current focus is on understanding the intricate mechanisms behind Netlink and routing message processing within the Linux kernel. To achieve this, I'm initiating a detailed examination of the `netlink_rcv_skb` function. I want to trace how a Netlink socket receives a socket buffer (`skb`) and subsequently how this `skb` is dispatched for further processing.

My immediate next steps involve scrutinizing the `rtnetlink_rcv_msg` function. This is the likely entry point for the Netlink message handling specifically related to routing information. I need to understand how it interprets the received message, identifies the type of routing operation requested (e.g., adding a route, deleting an interface, querying network state), and extracts the necessary parameters from the `skb`.

Following this, I'll dive into the `rtnetlink_rcv` function. This function, or a closely related one, is probably where the core logic for handling these routing-specific Netlink messages resides. I'm keen to see how it translates the received Netlink message into concrete actions or data retrieval operations within the kernel's networking stack. I anticipate exploring how it interacts with other networking subsystems and data structures to fulfill the user-space request. My goal is to gain a comprehensive understanding of this data path, from the initial reception of the Netlink message to its ultimate resolution within the kernel.


372/6 2026/08/15 18:24 tool grepper
0m Args:
map[Expression:rtnetlink_rcv PathPrefix:net/core/]

Results:
map[Output:net/core/rtnetlink.c=6963=static int rtnetlink_dump_start(struct sock *ssk, struct sk_buff *skb,
--
net/core/rtnetlink.c-6976-
net/core/rtnetlink.c:6977:static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
net/core/rtnetlink.c-6978-			     struct netlink_ext_ack *extack)
--
net/core/rtnetlink.c-7100-
net/core/rtnetlink.c:7101:static void rtnetlink_rcv(struct sk_buff *skb)
net/core/rtnetlink.c-7102-{
net/core/rtnetlink.c:7103:	netlink_rcv_skb(skb, &rtnetlink_rcv_msg);
net/core/rtnetlink.c-7104-}
--
net/core/rtnetlink.c=7150=static int __net_init rtnetlink_net_init(struct net *net)
--
net/core/rtnetlink.c-7154-		.groups		= RTNLGRP_MAX,
net/core/rtnetlink.c:7155:		.input		= rtnetlink_rcv,
net/core/rtnetlink.c-7156-		.flags		= NL_CFG_F_NONROOT_RECV,
]

373/6 2026/08/15 18:24 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 3821
							output: 43
							thoughts: 37
						

Thoughts:
**My Thought Process on Analyzing `netlink_rcv_skb`**

Alright, so my initial impulse is to dive deep into the `netlink_rcv_skb` function within `net/netlink/af_netlink.c`. I want to get a granular understanding of how Netlink sockets receive and process incoming skbs. My go-to tool for this kind of in-depth exploration is `codesearch-definition-source`. I'm expecting to trace the execution flow, identify key data structures involved, and pinpoint any critical logic or potential bottlenecks related to skb handling. I'm particularly interested in the intricacies of how the kernel demultiplexes messages to the correct netlink family and protocol, and how it manages socket buffers during this process. This analysis will be crucial for understanding the underlying mechanisms of Netlink communication and identifying areas for potential optimization or debugging.


374/6 2026/08/15 18:25 tool codesearch-definition-source
0m Args:
map[ContextFile:net/netlink/af_netlink.c Name:netlink_rcv_skb]

Results:
map[SourceCode:2530:	int netlink_rcv_skb(struct sk_buff *skb, int (*cb)(struct sk_buff *,
2531:							   struct nlmsghdr *,
2532:							   struct netlink_ext_ack *))
2533:	{
2534:		struct netlink_ext_ack extack;
2535:		struct nlmsghdr *nlh;
2536:		int err;
2537:	
2538:		while (skb->len >= nlmsg_total_size(0)) {
2539:			int msglen;
2540:	
2541:			memset(&extack, 0, sizeof(extack));
2542:			nlh = nlmsg_hdr(skb);
2543:			err = 0;
2544:	
2545:			if (nlh->nlmsg_len < NLMSG_HDRLEN || skb->len < nlh->nlmsg_len)
2546:				return 0;
2547:	
2548:			/* Only requests are handled by the kernel */
2549:			if (!(nlh->nlmsg_flags & NLM_F_REQUEST))
2550:				goto ack;
2551:	
2552:			/* Skip control messages */
2553:			if (nlh->nlmsg_type < NLMSG_MIN_TYPE)
2554:				goto ack;
2555:	
2556:			err = cb(skb, nlh, &extack);
2557:			if (err == -EINTR)
2558:				goto skip;
2559:	
2560:	ack:
2561:			if (nlh->nlmsg_flags & NLM_F_ACK || err)
2562:				netlink_ack(skb, nlh, err, &extack);
2563:	
2564:	skip:
2565:			msglen = NLMSG_ALIGN(nlh->nlmsg_len);
2566:			if (msglen > skb->len)
2567:				msglen = skb->len;
2568:			skb_pull(skb, msglen);
2569:		}
2570:	
2571:		return 0;
2572:	}
 SourceFile:net/netlink/af_netlink.c]

375/6 2026/08/15 18:25 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 4536
							output: 34
							thoughts: 827
						

Thoughts:
**My Thoughts on Netlink Message Handling**

This is incredibly insightful! Diving into `netlink_rcv_skb` has really clarified how Netlink handles message batches and acknowledgements.

First, I'm struck by the realization of **buffer batching or message packing**. The `while (skb->len >= nlmsg_total_size(0))` loop is key here. It means a single datagram, sent via `sendmsg` or even more advanced calls like `sendmmsg`, can contain *multiple* `struct nlmsghdr` messages sequentially. Each message, with its `nlmsg_len`, is aligned to `NLMSG_ALIGN()` (4-byte boundaries). The kernel iterates through all these headers within the received `skb`, invoking the appropriate callback (like `rtnetlink_rcv_msg`) for *each* individual message. This is a powerful mechanism for efficiency, allowing applications to send a series of related commands in one go.

Secondly, the **ACK handling mechanism**, specifically around the `NLM_F_ACK` flag on line 2561, is nuanced. The `if (nlh->nlmsg_flags & NLM_F_ACK || err)` condition is crucial. I've noticed that an ACK (an `NLMSG_ERROR` message with an error code of 0) is sent *only* if the `NLM_F_ACK` flag is set on the incoming message, *or* if an actual error (`err != 0`) occurred. This means if a message *succeeds* (`err == 0`) and the `NLM_F_ACK` flag was *not* set, the kernel sends *nothing* back. However, if an error *does* occur (`err != 0`), the kernel *always* sends an ACK/error message (an `NLMSG_ERROR` with `-errno`) back, irrespective of whether `NLM_F_ACK` was present.

Let me re-examine this:
*   If `NLM_F_ACK` is *not* set:
    *   Success (`err == 0`): Silence from the kernel.
    *   Error (`err != 0`): An `NLMSG_ERROR` message is sent back with the negative error code.
*   If `NLM_F_ACK` *is* set:
    *   The kernel sends an `NLMSG_ERROR` message, indicating success (error code 0) or the specific error (error code `-errno`).

This leads me to ponder: **how can I most efficiently batch messages and achieve synchronization without requiring an explicit ACK for every single successful operation?** My next step is to explore common patterns employed by user-space applications like `iproute2` (specifically `tcbatch`), `libnl`, and `libmnl`, as well as system daemons like `systemd-networkd` or `ovs`. I'll be looking for kernel configurations or socket options such as `NETLINK_CAP_ACK`, `NETLINK_EXT_ACK`, `NETLINK_NO_ENOBUFS`, `NETLINK_GET_STRICT_CHK`, and socket buffer size options (`SO_SNDBUF`, `SO_RCVBUF`) that might influence or support batching strategies. I'll also be searching the kernel source, particularly `net/netlink/af_netlink.c` and relevant header files, for any specific Netlink socket options related to these concepts.


376/6 2026/08/15 18:25 tool grepper
0m Args:
map[Expression:NETLINK_ PathPrefix:include/uapi/linux/netlink.h]

Results:
map[Output:include/uapi/linux/netlink.h-1-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
include/uapi/linux/netlink.h:2:#ifndef _UAPI__LINUX_NETLINK_H
include/uapi/linux/netlink.h:3:#define _UAPI__LINUX_NETLINK_H
include/uapi/linux/netlink.h-4-
--
include/uapi/linux/netlink.h-8-
include/uapi/linux/netlink.h:9:#define NETLINK_ROUTE		0	/* Routing/device hook				*/
include/uapi/linux/netlink.h:10:#define NETLINK_UNUSED		1	/* Unused number				*/
include/uapi/linux/netlink.h:11:#define NETLINK_USERSOCK	2	/* Reserved for user mode socket protocols 	*/
include/uapi/linux/netlink.h:12:#define NETLINK_FIREWALL	3	/* Unused number, formerly ip_queue		*/
include/uapi/linux/netlink.h:13:#define NETLINK_SOCK_DIAG	4	/* socket monitoring				*/
include/uapi/linux/netlink.h:14:#define NETLINK_NFLOG		5	/* netfilter/iptables ULOG */
include/uapi/linux/netlink.h:15:#define NETLINK_XFRM		6	/* ipsec */
include/uapi/linux/netlink.h:16:#define NETLINK_SELINUX		7	/* SELinux event notifications */
include/uapi/linux/netlink.h:17:#define NETLINK_ISCSI		8	/* Open-iSCSI */
include/uapi/linux/netlink.h:18:#define NETLINK_AUDIT		9	/* auditing */
include/uapi/linux/netlink.h:19:#define NETLINK_FIB_LOOKUP	10	
include/uapi/linux/netlink.h:20:#define NETLINK_CONNECTOR	11
include/uapi/linux/netlink.h:21:#define NETLINK_NETFILTER	12	/* netfilter subsystem */
include/uapi/linux/netlink.h:22:#define NETLINK_IP6_FW		13
include/uapi/linux/netlink.h:23:#define NETLINK_DNRTMSG		14	/* DECnet routing messages (obsolete) */
include/uapi/linux/netlink.h:24:#define NETLINK_KOBJECT_UEVENT	15	/* Kernel messages to userspace */
include/uapi/linux/netlink.h:25:#define NETLINK_GENERIC		16
include/uapi/linux/netlink.h:26:/* leave room for NETLINK_DM (DM Events) */
include/uapi/linux/netlink.h:27:#define NETLINK_SCSITRANSPORT	18	/* SCSI Transports */
include/uapi/linux/netlink.h:28:#define NETLINK_ECRYPTFS	19
include/uapi/linux/netlink.h:29:#define NETLINK_RDMA		20
include/uapi/linux/netlink.h:30:#define NETLINK_CRYPTO		21	/* Crypto layer */
include/uapi/linux/netlink.h:31:#define NETLINK_SMC		22	/* SMC monitoring */
include/uapi/linux/netlink.h-32-
include/uapi/linux/netlink.h:33:#define NETLINK_INET_DIAG	NETLINK_SOCK_DIAG
include/uapi/linux/netlink.h-34-
--
include/uapi/linux/netlink.h=119=struct nlmsgerr {
--
include/uapi/linux/netlink.h-122-	/*
include/uapi/linux/netlink.h:123:	 * followed by the message contents unless NETLINK_CAP_ACK was set
include/uapi/linux/netlink.h-124-	 * or the ACK indicates success (error == 0)
--
include/uapi/linux/netlink.h-128-	 * followed by TLVs defined in enum nlmsgerr_attrs
include/uapi/linux/netlink.h:129:	 * if NETLINK_EXT_ACK was set
include/uapi/linux/netlink.h-130-	 */
--
include/uapi/linux/netlink.h=150=enum nlmsgerr_attrs {
--
include/uapi/linux/netlink.h-162-
include/uapi/linux/netlink.h:163:#define NETLINK_ADD_MEMBERSHIP		1
include/uapi/linux/netlink.h:164:#define NETLINK_DROP_MEMBERSHIP		2
include/uapi/linux/netlink.h:165:#define NETLINK_PKTINFO			3
include/uapi/linux/netlink.h:166:#define NETLINK_BROADCAST_ERROR		4
include/uapi/linux/netlink.h:167:#define NETLINK_NO_ENOBUFS		5
include/uapi/linux/netlink.h-168-#ifndef __KERNEL__
include/uapi/linux/netlink.h:169:#define NETLINK_RX_RING			6
include/uapi/linux/netlink.h:170:#define NETLINK_TX_RING			7
include/uapi/linux/netlink.h-171-#endif
include/uapi/linux/netlink.h:172:#define NETLINK_LISTEN_ALL_NSID		8
include/uapi/linux/netlink.h:173:#define NETLINK_LIST_MEMBERSHIPS	9
include/uapi/linux/netlink.h:174:#define NETLINK_CAP_ACK			10
include/uapi/linux/netlink.h:175:#define NETLINK_EXT_ACK			11
include/uapi/linux/netlink.h:176:#define NETLINK_GET_STRICT_CHK		12
include/uapi/linux/netlink.h-177-
--
include/uapi/linux/netlink.h=215=enum {
include/uapi/linux/netlink.h:216:	NETLINK_UNCONNECTED = 0,
include/uapi/linux/netlink.h:217:	NETLINK_CONNECTED,
include/uapi/linux/netlink.h-218-};
--
include/uapi/linux/netlink.h=363=enum netlink_policy_type_attr {
--
include/uapi/linux/netlink.h-382-
include/uapi/linux/netlink.h:383:#endif /* _UAPI__LINUX_NETLINK_H */
]

377/6 2026/08/15 18:25 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 7071
							output: 39
							thoughts: 46
						

Thoughts:
**My Thought Process Regarding Netlink Socket Options and Flags**

As an expert in this domain, my immediate impulse upon encountering a question or task related to Netlink sockets is to delve into the foundational documentation. Specifically, I know that the definitive source for understanding Netlink socket options and flags lies within the kernel's source code. Therefore, my very first step is to orient myself to the most relevant files. I'll be looking at `include/uapi/linux/netlink.h`, as this header file is where the user-space API definitions for Netlink reside, including the constants that define various socket options and flags. In parallel, or perhaps even more critically for understanding the runtime behavior and implementation, I'll examine `net/netlink/af_netlink.c`. This C file is the heart of the Netlink subsystem's implementation within the Linux kernel, and it will provide the concrete details of how these options and flags are interpreted and utilized by the kernel itself. By thoroughly reviewing these sections, I can gain a comprehensive understanding of the entire Netlink socket interface from both the API and implementation perspectives, ensuring I don't miss any nuances or obscure but important details.


378/6 2026/08/15 18:25 tool read-file
0m Args:
map[File:include/uapi/linux/netlink.h FirstLine:40 LineCount:100]

Results:
map[Contents:  40:		__u32		nl_pid;		/* port ID	*/
  41:	       	__u32		nl_groups;	/* multicast groups mask */
  42:	};
  43:	
  44:	/**
  45:	 * struct nlmsghdr - fixed format metadata header of Netlink messages
  46:	 * @nlmsg_len:   Length of message including header
  47:	 * @nlmsg_type:  Message content type
  48:	 * @nlmsg_flags: Additional flags
  49:	 * @nlmsg_seq:   Sequence number
  50:	 * @nlmsg_pid:   Sending process port ID
  51:	 */
  52:	struct nlmsghdr {
  53:		__u32		nlmsg_len;
  54:		__u16		nlmsg_type;
  55:		__u16		nlmsg_flags;
  56:		__u32		nlmsg_seq;
  57:		__u32		nlmsg_pid;
  58:	};
  59:	
  60:	/* Flags values */
  61:	
  62:	#define NLM_F_REQUEST		0x01	/* It is request message. 	*/
  63:	#define NLM_F_MULTI		0x02	/* Multipart message, terminated by NLMSG_DONE */
  64:	#define NLM_F_ACK		0x04	/* Reply with ack, with zero or error code */
  65:	#define NLM_F_ECHO		0x08	/* Receive resulting notifications */
  66:	#define NLM_F_DUMP_INTR		0x10	/* Dump was inconsistent due to sequence change */
  67:	#define NLM_F_DUMP_FILTERED	0x20	/* Dump was filtered as requested */
  68:	
  69:	/* Modifiers to GET request */
  70:	#define NLM_F_ROOT	0x100	/* specify tree	root	*/
  71:	#define NLM_F_MATCH	0x200	/* return all matching	*/
  72:	#define NLM_F_ATOMIC	0x400	/* atomic GET		*/
  73:	#define NLM_F_DUMP	(NLM_F_ROOT|NLM_F_MATCH)
  74:	
  75:	/* Modifiers to NEW request */
  76:	#define NLM_F_REPLACE	0x100	/* Override existing		*/
  77:	#define NLM_F_EXCL	0x200	/* Do not touch, if it exists	*/
  78:	#define NLM_F_CREATE	0x400	/* Create, if it does not exist	*/
  79:	#define NLM_F_APPEND	0x800	/* Add to end of list		*/
  80:	
  81:	/* Modifiers to DELETE request */
  82:	#define NLM_F_NONREC	0x100	/* Do not delete recursively	*/
  83:	#define NLM_F_BULK	0x200	/* Delete multiple objects	*/
  84:	
  85:	/* Flags for ACK message */
  86:	#define NLM_F_CAPPED	0x100	/* request was capped */
  87:	#define NLM_F_ACK_TLVS	0x200	/* extended ACK TVLs were included */
  88:	
  89:	/*
  90:	   4.4BSD ADD		NLM_F_CREATE|NLM_F_EXCL
  91:	   4.4BSD CHANGE	NLM_F_REPLACE
  92:	
  93:	   True CHANGE		NLM_F_CREATE|NLM_F_REPLACE
  94:	   Append		NLM_F_CREATE
  95:	   Check		NLM_F_EXCL
  96:	 */
  97:	
  98:	#define NLMSG_ALIGNTO	4U
  99:	#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
 100:	#define NLMSG_HDRLEN	 ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
 101:	#define NLMSG_LENGTH(len) ((len) + NLMSG_HDRLEN)
 102:	#define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len))
 103:	#define NLMSG_DATA(nlh)  ((void *)(((char *)nlh) + NLMSG_HDRLEN))
 104:	#define NLMSG_NEXT(nlh,len)	 ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
 105:					  (struct nlmsghdr *)(((char *)(nlh)) + \
 106:					  NLMSG_ALIGN((nlh)->nlmsg_len)))
 107:	#define NLMSG_OK(nlh,len) ((len) >= (int)sizeof(struct nlmsghdr) && \
 108:				   (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
 109:				   (nlh)->nlmsg_len <= (len))
 110:	#define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len)))
 111:	
 112:	#define NLMSG_NOOP		0x1	/* Nothing.		*/
 113:	#define NLMSG_ERROR		0x2	/* Error		*/
 114:	#define NLMSG_DONE		0x3	/* End of a dump	*/
 115:	#define NLMSG_OVERRUN		0x4	/* Data lost		*/
 116:	
 117:	#define NLMSG_MIN_TYPE		0x10	/* < 0x10: reserved control messages */
 118:	
 119:	struct nlmsgerr {
 120:		int		error;
 121:		struct nlmsghdr msg;
 122:		/*
 123:		 * followed by the message contents unless NETLINK_CAP_ACK was set
 124:		 * or the ACK indicates success (error == 0)
 125:		 * message length is aligned with NLMSG_ALIGN()
 126:		 */
 127:		/*
 128:		 * followed by TLVs defined in enum nlmsgerr_attrs
 129:		 * if NETLINK_EXT_ACK was set
 130:		 */
 131:	};
 132:	
 133:	/**
 134:	 * enum nlmsgerr_attrs - nlmsgerr attributes
 135:	 * @NLMSGERR_ATTR_UNUSED: unused
 136:	 * @NLMSGERR_ATTR_MSG: error message string (string)
 137:	 * @NLMSGERR_ATTR_OFFS: offset of the invalid attribute in the original
 138:	 *	 message, counting from the beginning of the header (u32)
 139:	 * @NLMSGERR_ATTR_COOKIE: arbitrary subsystem specific cookie to
]

379/6 2026/08/15 18:25 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 9031
							output: 31
							thoughts: 842
						

Thoughts:
**My Thought Process on Efficient Netlink Batching for `tc` Operations**

My primary goal here is to understand how to send multiple `tc` (Traffic Control) commands, like creating qdiscs or classes, as efficiently as possible using Netlink, specifically aiming to avoid the overhead of waiting for an acknowledgment after every single message. I'm looking at `tc`, `iproute2`, `libnl`, and `libmnl` as potential sources of information, but I realize the core mechanism will likely be within the Netlink socket layer itself.

So, my first step is to dive into how `iproute2` or its underlying libraries handle batching. Does `tc` itself support a batch mode? Or is the batching logic handled at the `rtnetlink` or general Netlink socket level? I'll be looking for mentions of this in kernel documentation or, even better, within the kernel code comments themselves. If that's not immediately fruitful, I'll broaden my search to understand Netlink batching in general.

I've begun to conceptualize the techniques involved in sending multiple Netlink messages without awaiting an individual ACK for each one. These seem to fall into several categories:

1.  **Buffer Batching:** This is the most fundamental approach. I can construct a series of individual Netlink messages, each with its `nlmsghdr` and payload, ensuring proper alignment with `NLMSG_ALIGN`. Then, I'll pack all these messages contiguously into a single, reasonably sized buffer – perhaps anywhere from 8KB to 64KB, a common range for socket buffers. The key here is to send this entire buffer in *one* system call, like `send`, `sendto`, or `sendmsg`. The kernel, specifically within `netlink_rcv_skb`, should then be able to process each Netlink message sequentially within a single kernel-space operation, rather than returning to user space for every message.

2.  **Strategic ACK Handling:** This is about controlling the flow of acknowledgments.
    *   **Omitting `NLM_F_ACK`:** If I *don't* set the `NLM_F_ACK` flag on a message, the kernel will typically send no reply upon successful processing. This saves overhead. However, critically, if an error *does* occur during processing, the kernel *always* sends back an `NLMSG_ERROR` message, irrespective of `NLM_F_ACK`.
    *   **The Last Message as a Synchronizer:** The most effective strategy seems to be to set `NLM_F_ACK` *only* on the very last message of a batch (or perhaps a smaller group, like every 500 messages). This final ACK then acts as a synchronization point. When I receive this ACK, and its `nlmsg_seq` matches the sequence number of that last message, I can be confident that all preceding messages in the batch have been processed by the kernel. Any errors from earlier messages would have already arrived as `NLMSG_ERROR` packets, identifiable by their respective `nlmsg_seq`, before or alongside this final ACK.

3.  **Socket Tuning and Non-Blocking Operations:** To handle a large volume of messages, I need to ensure the socket itself isn't a bottleneck.
    *   **Socket Buffer Sizes:** I'll need to use `setsockopt()` to increase the `SO_SNDBUF` and `SO_RCVBUF` sizes. This is crucial to prevent `ENOBUFS` errors or blocking when trying to send, say, 500 messages at once.
    *   **Non-Blocking Mode:** Using `O_NONBLOCK` or `MSG_DONTWAIT` on the socket allows me to send batches without blocking, and then I can read back responses asynchronously. This avoids serializing sends and receives unnecessarily.

4.  **Sequence Numbering for Correlation:** To accurately pinpoint failures, each message must have a unique sequence number. I'll increment `nlmsg_seq` for every message sent within a batch (e.g., 1, 2, 3, ..., 500). When I receive responses (either ACKs or error notifications), matching the `nlh->nlmsg_seq` will tell me *exactly* which `tc` command (qdisc or class creation) failed.

5.  **`NETLINK_CAP_ACK` Optimization (Optional):** I'm also aware of an optional optimization called `NETLINK_CAP_ACK`. By setting this socket option, the kernel can truncate the echoed message payload in `NLMSG_ERROR` responses. This could be beneficial for reducing socket buffer memory usage and copy overhead if errors do occur, although it's not strictly necessary for the core batching mechanism.

My next step is to verify these conceptual approaches by digging into the Linux kernel code, specifically looking at `af_netlink.c` for implementations related to `setsockopt` on `SOL_NETLINK`. I'm essentially trying to confirm if these are the documented or implemented methods the kernel uses for efficient Netlink communication, particularly in the context of `rtnetlink` which `tc` relies on.


380/6 2026/08/15 18:25 tool grepper
0m Args:
map[Expression:netlink_setsockopt PathPrefix:net/netlink/]

Results:
map[Output:net/netlink/af_netlink.c=1635=static void netlink_update_socket_mc(struct netlink_sock *nlk,
--
net/netlink/af_netlink.c-1647-
net/netlink/af_netlink.c:1648:static int netlink_setsockopt(struct socket *sock, int level, int optname,
net/netlink/af_netlink.c-1649-			      sockptr_t optval, unsigned int optlen)
--
net/netlink/af_netlink.c=2808=static const struct proto_ops netlink_ops = {
--
net/netlink/af_netlink.c-2820-	.shutdown =	sock_no_shutdown,
net/netlink/af_netlink.c:2821:	.setsockopt =	netlink_setsockopt,
net/netlink/af_netlink.c-2822-	.getsockopt_iter = netlink_getsockopt,
]

381/6 2026/08/15 18:25 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 10157
							output: 41
							thoughts: 35
						

Thoughts:
**My Thought Process on Investigating `netlink_setsockopt`**

Alright, so my immediate instinct when dealing with a potential network-related issue, or even just exploring the intricacies of a network subsystem, is to dive into the source code. Specifically, I'm looking at `af_netlink.c` because that's where the heart of Netlink socket operations for the kernel lies. My target is the `netlink_setsockopt` function. Why? Because `setsockopt` is the standard user-space mechanism for configuring socket behavior, and `netlink_setsockopt` is the kernel's handler for those requests targeted at Netlink sockets. Understanding how the kernel interprets and acts upon these options is crucial for debugging, performance tuning, or even developing new Netlink-based tools.

My go-to tool for this kind of deep dive is `codesearch-definition-source`. It's incredibly efficient for quickly locating function definitions, understanding their arguments, return types, and the surrounding code context. I'm not just looking for the signature of `netlink_setsockopt`; I want to see *where* it's defined, *how* it's invoked, and *what* it does with the arguments it receives. I'm anticipating a series of `switch` statements or `if-else if` blocks that will branch based on the `optname` passed in by the user-space application. Each branch will likely correspond to a specific Netlink socket option, and I'll be paying close attention to the validation it performs and the actual kernel-side actions it triggers. My goal is to build a mental map of how these options translate into Netlink socket state and behavior.


382/6 2026/08/15 18:25 tool codesearch-definition-source
0m Args:
map[ContextFile:net/netlink/af_netlink.c Name:netlink_setsockopt]

Results:
map[SourceCode:1648:	static int netlink_setsockopt(struct socket *sock, int level, int optname,
1649:				      sockptr_t optval, unsigned int optlen)
1650:	{
1651:		struct sock *sk = sock->sk;
1652:		struct netlink_sock *nlk = nlk_sk(sk);
1653:		unsigned int val = 0;
1654:		int nr = -1;
1655:	
1656:		if (level != SOL_NETLINK)
1657:			return -ENOPROTOOPT;
1658:	
1659:		if (optlen >= sizeof(int) &&
1660:		    copy_from_sockptr(&val, optval, sizeof(val)))
1661:			return -EFAULT;
1662:	
1663:		switch (optname) {
1664:		case NETLINK_PKTINFO:
1665:			nr = NETLINK_F_RECV_PKTINFO;
1666:			break;
1667:		case NETLINK_ADD_MEMBERSHIP:
1668:		case NETLINK_DROP_MEMBERSHIP: {
1669:			int err;
1670:	
1671:			if (!netlink_allowed(sock, NL_CFG_F_NONROOT_RECV))
1672:				return -EPERM;
1673:			err = netlink_realloc_groups(sk);
1674:			if (err)
1675:				return err;
1676:			if (!val || val - 1 >= nlk->ngroups)
1677:				return -EINVAL;
1678:			if (optname == NETLINK_ADD_MEMBERSHIP && nlk->netlink_bind) {
1679:				err = nlk->netlink_bind(sock_net(sk), val);
1680:				if (err)
1681:					return err;
1682:			}
1683:			netlink_table_grab();
1684:			netlink_update_socket_mc(nlk, val,
1685:						 optname == NETLINK_ADD_MEMBERSHIP);
1686:			netlink_table_ungrab();
1687:			if (optname == NETLINK_DROP_MEMBERSHIP && nlk->netlink_unbind)
1688:				nlk->netlink_unbind(sock_net(sk), val);
1689:	
1690:			break;
1691:		}
1692:		case NETLINK_BROADCAST_ERROR:
1693:			nr = NETLINK_F_BROADCAST_SEND_ERROR;
1694:			break;
1695:		case NETLINK_NO_ENOBUFS:
1696:			assign_bit(NETLINK_F_RECV_NO_ENOBUFS, &nlk->flags, val);
1697:			if (val) {
1698:				clear_bit(NETLINK_S_CONGESTED, &nlk->state);
1699:				wake_up_interruptible(&nlk->wait);
1700:			}
1701:			break;
1702:		case NETLINK_LISTEN_ALL_NSID:
1703:			if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_BROADCAST))
1704:				return -EPERM;
1705:			nr = NETLINK_F_LISTEN_ALL_NSID;
1706:			break;
1707:		case NETLINK_CAP_ACK:
1708:			nr = NETLINK_F_CAP_ACK;
1709:			break;
1710:		case NETLINK_EXT_ACK:
1711:			nr = NETLINK_F_EXT_ACK;
1712:			break;
1713:		case NETLINK_GET_STRICT_CHK:
1714:			nr = NETLINK_F_STRICT_CHK;
1715:			break;
1716:		default:
1717:			return -ENOPROTOOPT;
1718:		}
1719:		if (nr >= 0)
1720:			assign_bit(nr, &nlk->flags, val);
1721:		return 0;
1722:	}
 SourceFile:net/netlink/af_netlink.c]

383/6 2026/08/15 18:25 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 11409
							output: 39
							thoughts: 70
						

Thoughts:
**My Thought Process on Netlink Buffering and Acknowledgements**

As I delve into the intricacies of Netlink communication, a few key areas demand my focused attention. My primary objective is to thoroughly understand how buffer management impacts Netlink operations, specifically investigating the behavior of `NETLINK_NO_ENOBUFS` and the socket options `SO_SNDBUF` and `SO_RCVBUF`. I'm curious about the exact mechanisms by which these settings influence message transmission and reception, and under what conditions errors like `ENOBUFS` are generated and handled.

Simultaneously, a crucial aspect of reliable Netlink communication is the acknowledgement mechanism. I need to dissect how `netlink_ack` functions to ensure that sent messages are indeed received and processed by the intended recipient. My current plan is to meticulously examine the implementation of `netlink_ack` within the `net/netlink/af_netlink.c` file. By stepping through this code, I aim to gain a granular understanding of the handshake process, including how acknowledgements are sent, received, and validated, and how the system reacts to timeouts or failures in this critical feedback loop. Ultimately, this exploration will provide me with a comprehensive picture of Netlink's robustness and performance characteristics.


384/6 2026/08/15 18:25 tool codesearch-definition-source
0m Args:
map[ContextFile:net/netlink/af_netlink.c Name:netlink_ack]

Results:
map[SourceCode:2469:	void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err,
2470:			 const struct netlink_ext_ack *extack)
2471:	{
2472:		struct sk_buff *skb;
2473:		struct nlmsghdr *rep;
2474:		struct nlmsgerr *errmsg;
2475:		size_t payload = sizeof(*errmsg);
2476:		struct netlink_sock *nlk = nlk_sk(NETLINK_CB(in_skb).sk);
2477:		unsigned int flags = 0;
2478:		size_t tlvlen;
2479:	
2480:		/* Error messages get the original request appended, unless the user
2481:		 * requests to cap the error message, and get extra error data if
2482:		 * requested.
2483:		 */
2484:		if (err && !test_bit(NETLINK_F_CAP_ACK, &nlk->flags))
2485:			payload += nlmsg_len(nlh);
2486:		else
2487:			flags |= NLM_F_CAPPED;
2488:	
2489:		tlvlen = netlink_ack_tlv_len(nlk, err, extack);
2490:		if (tlvlen)
2491:			flags |= NLM_F_ACK_TLVS;
2492:	
2493:		skb = nlmsg_new(payload + tlvlen, GFP_KERNEL);
2494:		if (!skb)
2495:			goto err_skb;
2496:	
2497:		rep = nlmsg_put(skb, NETLINK_CB(in_skb).portid, nlh->nlmsg_seq,
2498:				NLMSG_ERROR, sizeof(*errmsg), flags);
2499:		if (!rep)
2500:			goto err_bad_put;
2501:		errmsg = nlmsg_data(rep);
2502:		errmsg->error = err;
2503:		errmsg->msg = *nlh;
2504:	
2505:		if (!(flags & NLM_F_CAPPED)) {
2506:			if (!nlmsg_append(skb, nlmsg_len(nlh)))
2507:				goto err_bad_put;
2508:	
2509:			memcpy(nlmsg_data(&errmsg->msg), nlmsg_data(nlh),
2510:			       nlmsg_len(nlh));
2511:		}
2512:	
2513:		if (tlvlen)
2514:			netlink_ack_tlv_fill(skb, nlh, err, extack);
2515:	
2516:		nlmsg_end(skb, rep);
2517:	
2518:		nlmsg_unicast(in_skb->sk, skb, NETLINK_CB(in_skb).portid);
2519:	
2520:		return;
2521:	
2522:	err_bad_put:
2523:		nlmsg_free(skb);
2524:	err_skb:
2525:		WRITE_ONCE(NETLINK_CB(in_skb).sk->sk_err, ENOBUFS);
2526:		sk_error_report(NETLINK_CB(in_skb).sk);
2527:	}
 SourceFile:net/netlink/af_netlink.c]

385/6 2026/08/15 18:25 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 12483
							output: 30
							thoughts: 1037
						

Thoughts:
**My Thought Process for Efficient Multi-Netlink Message Transmission**

Here I am, diving deep into the intricate mechanics of netlink communication, specifically how to push multiple `RTM_NEWTCLASS` and `RTM_NEWQDISC` messages through the kernel without the overhead of individual acknowledgments. My goal is to achieve peak efficiency in C.

First and foremost, the key insight is **batching**. Instead of the naive approach of sending one message and waiting, I need to pack as many netlink messages as possible into a single buffer. The netlink protocol inherently supports this. By concatenating multiple `struct nlmsghdr` structures and ensuring each `nlmsg_len` is correctly set and padded to `NLMSG_ALIGN`, I can submit a single, larger datagram to the kernel. The kernel's `netlink_rcv_skb` function is designed to process these concatenated messages iteratively within a single execution path. I'm thinking ideal batch sizes would likely fall in the 16KB to 64KB range, which could comfortably hold dozens or even hundreds of individual messages, depending on their content. This single system call significantly reduces context switching and system call overhead.

Crucially, to avoid waiting for an ACK for every single message, I need to employ a strategy of **selective acknowledgments**. The default netlink behavior is helpful here: if `NLM_F_ACK` is *not* set, the kernel only sends an `NLMSG_ERROR` if an operation *fails*. If it succeeds, there's silence. This is precisely what I can leverage. I'll set `NLM_F_ACK` *only* on the very last message in my batch, or perhaps the final message of a larger sequence (like my target 500 messages). This acts as a "barrier synchronization" point. I can then send all 500 messages consecutively, without any intervening waits. After sending, I'll enter a read loop, consuming responses until I receive the ACK specifically for my final message's sequence number. Any errors from intermediate messages will surface as `NLMSG_ERROR` packets with a non-zero error code and will typically arrive *before* or *alongside* this final ACK. If I receive the final ACK and haven't seen any error messages with a non-zero error code, I can be confident that all 500 operations were successful.

To effectively manage these responses, **sequence number tracking** is paramount. Each netlink message header (`nlmsghdr`) must have a unique, incrementing `nlmsg_seq` field. When I receive an `NLMSG_ERROR` packet, I'll examine its `nlmsg_seq` to precisely pinpoint which specific qdisc or class operation failed. This allows for granular error reporting.

Considering the potential for a high volume of messages and their associated ACKs or error notifications, I must also think about **socket buffer sizing**. If the kernel's receive or send buffers become saturated due to a rapid influx of messages or their responses, I could face `ENOBUFS` errors or data loss. Therefore, I'll proactively increase the socket's send and receive buffer sizes using `setsockopt` with `SOL_SOCKET`, `SO_SNDBUF`, and `SO_RCVBUF` to ensure there's ample headroom.

Finally, for maximum throughput and responsiveness, implementing **non-blocking I/O** is a logical next step. I can set the socket to `O_NONBLOCK` or use the `MSG_DONTWAIT` flag during `sendmsg`. This allows me to fire off batches of messages without blocking, and then use mechanisms like `epoll` or `poll` (or a simple, carefully managed read loop) to efficiently drain the incoming response queue until the final ACK is received.

Regarding the specifics for qdisc and class creation, I know the netlink message structure for these operations involves a `struct nlmsghdr` followed by a `struct tcmsg` and then the actual attributes (`struct rtattr`). I'll be meticulously verifying the exact definitions of these structures in the relevant kernel headers to ensure I'm constructing the messages correctly. The plan is to have a solid C code example that encapsulates all these techniques for constructing, batching, sending, and processing the responses for a large set of netlink operations.


386/6 2026/08/15 18:25 tool grepper
0m Args:
map[Expression:struct tcmsg PathPrefix:include/uapi/linux/]

Results:
map[Output:include/uapi/linux/rtnetlink.h=605=struct prefix_cacheinfo {
--
include/uapi/linux/rtnetlink.h-614-
include/uapi/linux/rtnetlink.h:615:struct tcmsg {
include/uapi/linux/rtnetlink.h-616-	unsigned char	tcm_family;
--
include/uapi/linux/rtnetlink.h=635=enum {
--
include/uapi/linux/rtnetlink.h-662-
include/uapi/linux/rtnetlink.h:663:#define TCA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
include/uapi/linux/rtnetlink.h:664:#define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
include/uapi/linux/rtnetlink.h-665-
]

387/6 2026/08/15 18:25 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 13788
							output: 40
							thoughts: 25
						

Thoughts:
**My Thought Process on `tcmsg`**

Alright, so my current line of inquiry involves delving into the `tcmsg` structure, and my immediate impulse is to consult the definitive source: the `include/uapi/linux/rtnetlink.h` header file. This is where the kernel's user-space interface for Netlink-related operations, particularly those concerning traffic control, is laid out. I need to get a precise understanding of its fields and their intended purpose to accurately interpret any messages or configurations I encounter. My expectation is to find a well-defined structure that encapsulates all the necessary parameters for managing traffic control objects – things like the message type, family, flags, and potentially payload pointers or sizes. This will be the bedrock upon which I build my comprehension of the underlying mechanisms.


388/6 2026/08/15 18:25 tool read-file
0m Args:
map[File:include/uapi/linux/rtnetlink.h FirstLine:614 LineCount:20]

Results:
map[Contents: 614:	
 615:	struct tcmsg {
 616:		unsigned char	tcm_family;
 617:		unsigned char	tcm__pad1;
 618:		unsigned short	tcm__pad2;
 619:		int		tcm_ifindex;
 620:		__u32		tcm_handle;
 621:		__u32		tcm_parent;
 622:	/* tcm_block_index is used instead of tcm_parent
 623:	 * in case tcm_ifindex == TCM_IFINDEX_MAGIC_BLOCK
 624:	 */
 625:	#define tcm_block_index tcm_parent
 626:		__u32		tcm_info;
 627:	};
 628:	
 629:	/* For manipulation of filters in shared block, tcm_ifindex is set to
 630:	 * TCM_IFINDEX_MAGIC_BLOCK, and tcm_parent is aliased to tcm_block_index
 631:	 * which is the block index.
 632:	 */
 633:	#define TCM_IFINDEX_MAGIC_BLOCK (0xFFFFFFFFU)
]

389/6 2026/08/15 18:25 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 14170
							output: 1906
							thoughts: 1892
						

Thoughts:
**My Thought Process on Efficient Netlink Batching**

Alright, so the core problem I'm trying to solve is sending a large number of Netlink messages – say, 500 `RTM_NEWTCLASS` or `RTM_NEWQDISC` operations – as quickly as possible. The bottleneck is obviously the round-trip latency for each individual message if I just sent them one by one and waited for an ACK. I need to batch them up and minimize those ACKs.

First, I need to get a handle on the Netlink message flags. I'm looking at `include/uapi/linux/netlink.h` and clarifying the roles of `NLM_F_CREATE` (create if not exists), `NLM_F_EXCL` (error if exists), `NLM_F_REQUEST` (essential for kernel communication), and crucially, `NLM_F_ACK` (request an acknowledgment).

The strategy for batching involves a few key steps.

1.  **Packing Messages into a Buffer:** I'll need a reasonably sized buffer, say `char buf[65536]`, to hold multiple Netlink messages. Each message will be constructed with a `struct nlmsghdr`. For each message, I'll set its length (`nlh->nlmsg_len`), its type (like `RTM_NEWTCLASS`), and its flags. The `NLM_F_REQUEST`, `NLM_F_CREATE`, and `NLM_F_EXCL` flags are generally necessary for these kinds of operations. I'll also maintain a sequence number (`nlh->nlmsg_seq`) and use the process ID (`nlh->nlmsg_pid`) for identification. After filling the `struct tcmsg` and any attributes, I'll advance an offset within the buffer, making sure to use `NLMSG_ALIGN` for proper alignment.

2.  **The ACK Barrier: Selective `NLM_F_ACK`:** This is the critical optimization. For all the *intermediate* messages in my batch (e.g., messages 1 through 499 out of 500), I will *not* set the `NLM_F_ACK` flag. The kernel, by default, doesn't send an ACK for messages that *don't* have `NLM_F_ACK` set, unless an error occurs. This dramatically reduces the number of response messages I have to process. For the *very last message* in the entire batch (message 500 in my example), I *will* set `NLM_F_ACK`. This creates an "ACK barrier." Once I receive an ACK for this final message, I have a guarantee that all preceding messages in the batch have been processed by the kernel. If I were batching into multiple buffer chunks, I'd apply this logic to the last message of each chunk or just the absolute final message.

3.  **Single `send()` Call:** After packing all my messages into the buffer, I'll send the entire buffer in one go using a single `send(fd, buf, total_offset, 0)` system call. This is much more efficient than multiple individual `send` calls.

4.  **Receiving and Parsing ACKs/Errors:** I'll then enter a receiving loop, calling `recv(fd, rcv_buf, sizeof(rcv_buf), 0)`. The crucial part here is parsing these incoming Netlink messages.
    *   If I receive a message with `nlh->nlmsg_type == NLMSG_ERROR`, it means an error occurred or an ACK was sent (because `NLM_F_ACK` was set).
    *   I'll cast the data to `struct nlmsgerr *err = NLMSG_DATA(nlh);`.
    *   If `err->error == 0`, this is the successful ACK for the message that had `NLM_F_ACK` set. I need to confirm its sequence number matches the one I sent. Receiving this means everything up to that sequence number is done.
    *   If `err->error < 0`, then an error occurred for the specific command identified by `err->msg.nlmsg_seq` (or `nlh->nlmsg_seq` from the received error message). I'll need to handle and log this error for that particular operation.

I also want to be absolutely sure about how the sequence number and error code are conveyed in the `nlmsgerr` structure. Looking at `netlink_ack()` in `net/netlink/af_netlink.c`, it becomes clear: the `rep->nlmsg_seq` in the reply is set to the original request's `nlh->nlmsg_seq`. Furthermore, `errmsg->msg` contains a copy of the original request header, so `errmsg->msg.nlmsg_seq` also holds the sequence number of the request that caused the error or ACK. This confirms my ability to correlate responses to specific requests.

A few edge cases to consider:
*   **Kernel Message Processing Order:** The kernel processes the messages within the received buffer sequentially, strictly in the order they were packed.
*   **Error Handling during Batch:** If an *intermediate* message fails (e.g., it already exists when I'm trying to create it with `NLM_F_EXCL`), the kernel will generate an `NLMSG_ERROR` for that specific message. The Netlink layer will then send this error back to user space. Crucially, *it will still attempt to process the subsequent messages in the same `skb`* if possible, rather than just dropping the whole batch.
*   **Socket Buffer Limits:** Sending a large batch can easily exceed the default send and receive buffer sizes on the Netlink socket. I'll need to use `setsockopt` with `SOL_SOCKET, SO_SNDBUF` and `SO_RCVBUF` to increase these, perhaps to 1MB or 4MB, to avoid `ENOBUFS` errors.
*   **`NETLINK_CAP_ACK`:** This socket option can be set to prevent the kernel from echoing the full request headers back in error messages. This is useful if my request payloads are large, saving bandwidth, although the sequence number is still available.

I also briefly considered other batching mechanisms like `NETLINK_TX_RING` or `sendmmsg`. However, `sendmmsg` is for sending multiple *separate* datagrams, whereas my approach of packing multiple Netlink messages into a *single* datagram is more efficient for Netlink because it results in a single `skb` in the kernel, processed by a single pass through `netlink_rcv_skb`.

So, to summarize the solution for the question of efficiently sending multiple Netlink messages:
1.  **In-Memory Batching:** Concatenate all `struct nlmsghdr` messages into a single buffer, ensuring proper alignment.
2.  **ACK Barrier:** Omit `NLM_F_ACK` for all messages except the absolute final one in the batch. This makes sure I only receive one ACK (or error) for the entire batch, signifying completion. Intermediate errors will still be reported individually.
3.  **Sequence Numbers:** Use incrementing `nlmsg_seq` to track and identify individual messages, especially important for correlating errors.
4.  **Buffer Tuning:** Increase socket buffer sizes (`SO_SNDBUF`, `SO_RCVBUF`) to accommodate the large batch.
5.  **Concrete Example:** I can provide a C code snippet demonstrating socket creation, buffer population, the selective `NLM_F_ACK` strategy, the `send()` call, and the receiving loop to handle the final ACK or errors.

This approach seems robust and directly addresses the need for speed by minimizing ACK round trips.


390/6 2026/08/15 18:26 tool set-results
0m Args:
map[Answer:To setup 500 qdiscs and classes efficiently in C without waiting for an ACK on each message, you can combine **Message Batching** (packing multiple Netlink messages into a single buffer/datagram) with **Selective ACKs** (ACK barrier pattern) and **Sequence Number Tracking**.

---

### Core Concepts & Netlink Mechanics

1. **Buffer Batching (Packing Messages into a Single Datagram)**:
   Netlink supports concatenating multiple Netlink messages (`struct nlmsghdr` + payload) back-to-back in a single buffer, aligned to 4-byte boundaries (`NLMSG_ALIGN`). When sent in a single `send()` or `sendmsg()` system call, the kernel’s `netlink_rcv_skb()` processes all messages sequentially in a single kernel execution loop without context-switching back to user space.

2. **Selective `NLM_F_ACK` (ACK Barrier Pattern)**:
   - In Linux netlink (`net/netlink/af_netlink.c`), an ACK message (`NLMSG_ERROR` with `error == 0`) is sent **only** if `NLM_F_ACK` is set in `nlmsg_flags`.
   - If `NLM_F_ACK` is **omitted**, successful commands generate **zero response packets**, eliminating round-trip latency.
   - If an error occurs during processing (`err != 0`), the kernel **always** generates an `NLMSG_ERROR` containing the negative error code (`-errno`) regardless of `NLM_F_ACK`.
   - By setting `NLM_F_ACK` **only on the last message** (e.g., message 500), that final ACK acts as a **synchronization barrier**: receiving it confirms that the kernel has finished processing all preceding messages.

3. **Sequence Number Tracking (`nlmsg_seq`)**:
   Assign an incrementing sequence number (e.g. 1 to 500) to each message. If any intermediate message fails, the `NLMSG_ERROR` returned by the kernel includes the `nlmsg_seq` of the exact request that failed.

4. **Socket Buffer Tuning**:
   Increase socket buffer limits with `SO_SNDBUF` and `SO_RCVBUF` to prevent `ENOBUFS` errors when sending large batches.

---

### C Code Implementation Example

```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>

#define BATCH_SIZE 500
#define BUF_SIZE (64 * 1024)

int main(void) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) {
        perror("socket");
        return 1;
    }

    // 1. Expand socket buffers to handle batch volume
    int sndbuf = 1024 * 1024;
    int rcvbuf = 1024 * 1024;
    setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));

    struct sockaddr_nl sa = { .nl_family = AF_NETLINK };
    if (bind(fd, (struct sockaddr *)&sa, sizeof(sa)) < 0) {
        perror("bind");
        close(fd);
        return 1;
    }

    char *buf = malloc(BUF_SIZE);
    int offset = 0;
    uint32_t seq_start = 1;

    // 2. Pack 500 messages into the batch buffer
    for (int i = 0; i < BATCH_SIZE; i++) {
        uint32_t current_seq = seq_start + i;

        // Ensure buffer room
        if (offset + NLMSG_SPACE(sizeof(struct tcmsg)) > BUF_SIZE) {
            fprintf(stderr, "Buffer overflow, flush batch here if needed\n");
            break;
        }

        struct nlmsghdr *nlh = (struct nlmsghdr *)(buf + offset);
        nlh->nlmsg_type = RTM_NEWTCLASS; // or RTM_NEWQDISC
        nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
        nlh->nlmsg_seq = current_seq;
        nlh->nlmsg_pid = getpid();

        // Standard request flags
        nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;

        // Barrier Pattern: Request ACK ONLY for the final message
        if (i == BATCH_SIZE - 1) {
            nlh->nlmsg_flags |= NLM_F_ACK;
        }

        struct tcmsg *tcm = (struct tcmsg *)NLMSG_DATA(nlh);
        memset(tcm, 0, sizeof(*tcm));
        tcm->tcm_family = AF_UNSPEC;
        tcm->tcm_ifindex = 2; // Target network interface index (e.g. eth0)
        tcm->tcm_parent = TC_H_ROOT;
        tcm->tcm_handle = TC_H_MAKE(1 << 16, i + 1); // Example classid/handle

        // Add TCA_* netlink attributes here if needed using RTA_* macros

        offset += NLMSG_ALIGN(nlh->nlmsg_len);
    }

    // 3. Send the entire batch in ONE system call
    ssize_t sent = send(fd, buf, offset, 0);
    if (sent < 0) {
        perror("send");
        free(buf);
        close(fd);
        return 1;
    }

    // 4. Drain responses until final ACK (or errors) arrive
    uint32_t final_seq = seq_start + BATCH_SIZE - 1;
    int finished = 0;

    while (!finished) {
        ssize_t len = recv(fd, buf, BUF_SIZE, 0);
        if (len < 0) {
            perror("recv");
            break;
        }

        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);

                if (err->error == 0) {
                    // Success ACK for a message with NLM_F_ACK set
                    if (nlh->nlmsg_seq == final_seq) {
                        printf("Batch complete! All 500 commands processed successfully.\n");
                        finished = 1;
                    }
                } else {
                    // An error occurred for a specific command sequence number
                    fprintf(stderr, "Command with seq %u failed: %s (%d)\n",
                            nlh->nlmsg_seq, strerror(-err->error), err->error);
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }

    free(buf);
    close(fd);
    return 0;
}
```

---

### Summary of Performance Optimizations
1. **Single `send()` invocation**: Reduces 500 system calls to 1 system call.
2. **Zero ACK overhead for intermediate commands**: Eliminates 499 round-trip reply messages from the kernel.
3. **Barrier synchronization**: Setting `NLM_F_ACK` only on message #500 guarantees all previous messages were processed once its ACK is received.
4. **Explicit error detection**: Any failed operation still generates an `NLMSG_ERROR` message containing `nlmsg_seq`, so error reporting remains 100% reliable.]

Results:
map[Answer:To setup 500 qdiscs and classes efficiently in C without waiting for an ACK on each message, you can combine **Message Batching** (packing multiple Netlink messages into a single buffer/datagram) with **Selective ACKs** (ACK barrier pattern) and **Sequence Number Tracking**.

---

### Core Concepts & Netlink Mechanics

1. **Buffer Batching (Packing Messages into a Single Datagram)**:
   Netlink supports concatenating multiple Netlink messages (`struct nlmsghdr` + payload) back-to-back in a single buffer, aligned to 4-byte boundaries (`NLMSG_ALIGN`). When sent in a single `send()` or `sendmsg()` system call, the kernel’s `netlink_rcv_skb()` processes all messages sequentially in a single kernel execution loop without context-switching back to user space.

2. **Selective `NLM_F_ACK` (ACK Barrier Pattern)**:
   - In Linux netlink (`net/netlink/af_netlink.c`), an ACK message (`NLMSG_ERROR` with `error == 0`) is sent **only** if `NLM_F_ACK` is set in `nlmsg_flags`.
   - If `NLM_F_ACK` is **omitted**, successful commands generate **zero response packets**, eliminating round-trip latency.
   - If an error occurs during processing (`err != 0`), the kernel **always** generates an `NLMSG_ERROR` containing the negative error code (`-errno`) regardless of `NLM_F_ACK`.
   - By setting `NLM_F_ACK` **only on the last message** (e.g., message 500), that final ACK acts as a **synchronization barrier**: receiving it confirms that the kernel has finished processing all preceding messages.

3. **Sequence Number Tracking (`nlmsg_seq`)**:
   Assign an incrementing sequence number (e.g. 1 to 500) to each message. If any intermediate message fails, the `NLMSG_ERROR` returned by the kernel includes the `nlmsg_seq` of the exact request that failed.

4. **Socket Buffer Tuning**:
   Increase socket buffer limits with `SO_SNDBUF` and `SO_RCVBUF` to prevent `ENOBUFS` errors when sending large batches.

---

### C Code Implementation Example

```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>

#define BATCH_SIZE 500
#define BUF_SIZE (64 * 1024)

int main(void) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) {
        perror("socket");
        return 1;
    }

    // 1. Expand socket buffers to handle batch volume
    int sndbuf = 1024 * 1024;
    int rcvbuf = 1024 * 1024;
    setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));

    struct sockaddr_nl sa = { .nl_family = AF_NETLINK };
    if (bind(fd, (struct sockaddr *)&sa, sizeof(sa)) < 0) {
        perror("bind");
        close(fd);
        return 1;
    }

    char *buf = malloc(BUF_SIZE);
    int offset = 0;
    uint32_t seq_start = 1;

    // 2. Pack 500 messages into the batch buffer
    for (int i = 0; i < BATCH_SIZE; i++) {
        uint32_t current_seq = seq_start + i;

        // Ensure buffer room
        if (offset + NLMSG_SPACE(sizeof(struct tcmsg)) > BUF_SIZE) {
            fprintf(stderr, "Buffer overflow, flush batch here if needed\n");
            break;
        }

        struct nlmsghdr *nlh = (struct nlmsghdr *)(buf + offset);
        nlh->nlmsg_type = RTM_NEWTCLASS; // or RTM_NEWQDISC
        nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
        nlh->nlmsg_seq = current_seq;
        nlh->nlmsg_pid = getpid();

        // Standard request flags
        nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;

        // Barrier Pattern: Request ACK ONLY for the final message
        if (i == BATCH_SIZE - 1) {
            nlh->nlmsg_flags |= NLM_F_ACK;
        }

        struct tcmsg *tcm = (struct tcmsg *)NLMSG_DATA(nlh);
        memset(tcm, 0, sizeof(*tcm));
        tcm->tcm_family = AF_UNSPEC;
        tcm->tcm_ifindex = 2; // Target network interface index (e.g. eth0)
        tcm->tcm_parent = TC_H_ROOT;
        tcm->tcm_handle = TC_H_MAKE(1 << 16, i + 1); // Example classid/handle

        // Add TCA_* netlink attributes here if needed using RTA_* macros

        offset += NLMSG_ALIGN(nlh->nlmsg_len);
    }

    // 3. Send the entire batch in ONE system call
    ssize_t sent = send(fd, buf, offset, 0);
    if (sent < 0) {
        perror("send");
        free(buf);
        close(fd);
        return 1;
    }

    // 4. Drain responses until final ACK (or errors) arrive
    uint32_t final_seq = seq_start + BATCH_SIZE - 1;
    int finished = 0;

    while (!finished) {
        ssize_t len = recv(fd, buf, BUF_SIZE, 0);
        if (len < 0) {
            perror("recv");
            break;
        }

        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);

                if (err->error == 0) {
                    // Success ACK for a message with NLM_F_ACK set
                    if (nlh->nlmsg_seq == final_seq) {
                        printf("Batch complete! All 500 commands processed successfully.\n");
                        finished = 1;
                    }
                } else {
                    // An error occurred for a specific command sequence number
                    fprintf(stderr, "Command with seq %u failed: %s (%d)\n",
                            nlh->nlmsg_seq, strerror(-err->error), err->error);
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }

    free(buf);
    close(fd);
    return 0;
}
```

---

### Summary of Performance Optimizations
1. **Single `send()` invocation**: Reduces 500 system calls to 1 system call.
2. **Zero ACK overhead for intermediate commands**: Eliminates 499 round-trip reply messages from the kernel.
3. **Barrier synchronization**: Setting `NLM_F_ACK` only on message #500 guarantees all previous messages were processed once its ACK is received.
4. **Explicit error detection**: Any failed operation still generates an `NLMSG_ERROR` message containing `nlmsg_seq`, so error reporting remains 100% reliable.]

391/4 2026/08/15 18:26 llm repro-generator
2m Model:
gemini-3.1-pro-preview

Tokens:
							input: 28371
							output: 4305
							thoughts: 17177
						

Thoughts:
**A Deep Dive into Exploiting a Kernel Race Condition: My Thought Process**

This is fascinating! I've just had a breakthrough in understanding and reproducing a subtle kernel race condition related to network traffic control (TC) and Netlink. My goal was to trigger a specific warning in the kernel (`WARN_ON_ONCE(parentid != TC_H_ROOT)`) that indicates a problem with how qdiscs (queueing disciplines) are managed.

Here's how my thinking process unfolded:

**1. Identifying the Core Problem:**

The bug report pointed to a race between qdisc destruction and timer callbacks. Specifically, when a parent qdisc (like an HTB root) is removed from the kernel's internal hash table *before* a child's timer callback fires, the callback might fail to find the parent qdisc, leading to the `WARN_ON_ONCE`. This is a critical issue because it suggests inconsistent state management within the kernel's networking stack.

**2. The Strategy: Batching for Speed and Precision:**

To exploit this, I needed to:
*   **Create a large number of objects:** The more objects involved (classes and qdiscs), the longer the destruction process will take, increasing the window for the race.
*   **Trigger timers precisely:** I need to arm timers and then have them fire approximately one second later.
*   **Delete the parent *just before* the timers fire:** This is the crux of the race. If the parent is gone when the timers go off, we hit the bug.

Netlink, the mechanism for communicating with the kernel's networking stack, is asynchronous. Sending individual Netlink messages one by one would be too slow and introduce too much jitter. This is where **batching** comes in. By sending a large number of Netlink messages in a single `send()` call, I can significantly reduce the overhead and ensure that all the qdiscs are created almost simultaneously from the kernel's perspective.

**3. Initial Thoughts on Batching and Packet Sending:**

*   "Perfect! We can batch the netlink messages." This is the first key insight. Creating 1 HTB root, 500 HTB classes, and 500 SFQ qdiscs (1001 messages total) in one go is efficient.
*   "But wait, we also need to send packets!" Yes, these packets need to be enqueued.
*   "Can we batch packet sending? Yes, we can just call `sendto` in a loop." This is fine, but I need to be careful about timing.

**4. The Timing Dilemma:**

*   "But wait, if we send packets AFTER all 500 qdiscs are created, the timers for the first qdiscs might have already fired!" This is a potential issue. If the creation takes too long, the timers associated with the *earlier* created qdiscs might fire before the creation process is even complete.
*   "Wait, if we batch 500 qdiscs in ONE `send()` call, the kernel will process them sequentially in a single loop without context switching! So the time difference between the first timer and the last timer will be VERY small!" This is the critical realization. When the kernel processes a batch, it does so efficiently. This means all 500 SFQ qdiscs will be created with their timers armed in rapid succession. The timers will then fire roughly one second later, also in rapid succession. This tight timing is crucial for controlling the race.
*   "Then we can send 500 packets in a loop. Wait, if the timers are armed during the `send()` call, they will fire 1 second later. If we send packets immediately after `send()`, the packets will be enqueued BEFORE the timers fire! This is perfect!" This confirms my timing strategy. I'll create everything, then send packets to ensure they get classified, and then carefully manage the timing of deleting the root qdisc relative to when the timers fire.

**5. Designing the Batching Infrastructure:**

I needed robust helper functions to build Netlink messages within a buffer.
*   `struct nl_batch`: A structure to hold the buffer, current offset, max size, and sequence number for Netlink messages.
*   `batch_init`: Allocates the buffer.
*   `batch_begin`: Starts a new Netlink message, setting headers like type, flags, sequence, and PID.
*   `addattr_l`, `addattr_str`, `addattr_nest`, `addattr_nest_end`: Standard helpers to add attributes to Netlink messages.
*   `batch_end`: Advances the buffer offset after a message is complete.

A crucial correction was needed:
*   "Wait, `addattr_l` modifies `n->nlmsg_len`. But `batch_add` already advanced `b->offset` by `NLMSG_ALIGN(size)`. If `addattr_l` adds attributes, it will overwrite the next message! So we should do: `batch_begin`/`batch_end`." My initial approach was to advance the offset *before* adding attributes, which would be wrong. The `batch_begin`/`batch_end` approach correctly handles the growing message length by advancing the offset *after* the entire message (including its attributes) is finalized.

**6. Implementing the Specific TC Objects:**

I then wrote functions to add the specific Netlink messages for:
*   `batch_add_htb_root`: Creates the root HTB qdisc.
*   `batch_add_htb_class`: Creates an HTB class, ensuring its parent is correctly set to the root qdisc.
*   `batch_add_sfq`: Creates an SFQ qdisc, linked to an HTB class. This is where the timers will be attached.

**7. The `batch_send` and `del_qdisc_root` Logic:**

*   `batch_send`: Sends the batched buffer and then waits for an acknowledgement (`NLMSG_ERROR`). Critically, it needs to ensure the *last* message in the batch has the `NLM_F_ACK` flag set. This flag tells the kernel to send an error message even if the operation succeeds, allowing us to synchronize. I added `batch_set_last_ack` for this.
*   `del_qdisc_root`: This function sends a Netlink request to delete the root qdisc. It also waits for an ACK, using a unique sequence number (`999999`) to distinguish its ACK from the batched ones.

**8. The Race Window and Precise Timing:**

This was the most intricate part.
*   "But wait, if the timers are armed during the `send()` call, they will fire 1 second later." This is my target.
*   "If we send packets immediately after `send()`, the packets will be enqueued BEFORE the timers fire!" This ensures classification.
*   "Then we need to delete the root qdisc. The question is, when?" I needed to delete the root qdisc *after* the batch creation and packet sending, but *before* the SFQ timers fire.
*   "If we batch 500 qdiscs in ONE `send()` call... the time difference between the first timer and the last timer will be VERY small!" This is key. The timers will fire almost simultaneously.
*   "Wait, if the timers are armed during the `send()` call, they will fire 1 second later." Let's call this T = 1,000,000 microseconds.
*   "We need to delete the root qdisc slightly BEFORE they fire." If I sleep for, say, 995,000 microseconds *after* the `send()` and packet sending, and then call `del_qdisc_root`, and `del_qdisc_root` takes some time (e.g., 20ms), the root qdisc will be removed from the hash table just before the timers fire. When the timers *do* fire (at T=1,000,000), they will try to look up the root qdisc, find it gone, and trigger the warning!
*   **The Sweep:** To make this absolutely robust and not dependent on exact timings, I decided to *vary* the sleep duration slightly in a loop (`iter * 500` microseconds). This "sweeps" the deletion time across the critical moment when the timers fire, guaranteeing that I hit the race condition reliably. I chose `NUM_CLASSES = 1000` to make `del_qdisc_root` take long enough to ensure the window is large.

**9. Setting up the Environment:**

*   I realized that creating network configurations requires privileges. So, I used `unshare(CLONE_NEWUSER | CLONE_NEWNET)` to create a new network namespace. This allows me to run the code as a regular user and have a clean slate for network configurations.
*   I decided to use the `lo` (loopback) interface because it's always available and doesn't require loading kernel modules like `dummy`. Running multiple threads on `lo` would interfere with each other (they'd delete each other's qdiscs), so I simplified to a single thread and multiple iterations.

**10. Final Code Structure:**

The final code consolidates all these ideas:
*   A `racer` function that sets up the Netlink socket, creates the TC hierarchy using batching, sends packets, precisely times the deletion of the root qdisc, and repeats this process multiple times with varying sleep intervals.
*   A `main` function that handles the `unshare` setup and calls the `racer` function.

This detailed, step-by-step thought process, with its iterative refinement and careful consideration of timing and kernel internals, led me to the robust reproducer for this kernel race condition. It's a prime example of how understanding the precise execution order and timing within the kernel is paramount for finding and exploiting such bugs.


392/4 2026/08/15 18:28 tool set-results
0m Args:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 1000

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = { .rate = 1, .linklayer = 1 },
        .ceil = { .rate = 1, .linklayer = 1 },
        .buffer = 1000, .cbuffer = 1000, .quantum = 1000, .prio = 0
    };
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct tc_sfq_qopt opt = {
        .perturb_period = 1,
        .limit = 1000,
        .divisor = 1024,
        .flows = 127
    };
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b) {
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == b->seq - 1) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) return -1;
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    
    int sndbuf = 2 * 1024 * 1024;
    int rcvbuf = 2 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int ifindex = get_ifindex("lo");
    if (ifindex < 0) {
        printf("[-] Failed to get ifindex for lo\n");
        close(nl_fd);
        return NULL;
    }
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        perror("socket AF_PACKET");
        close(nl_fd);
        return NULL;
    }
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char pkt[64] = {0};
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Starting race loop...\n");
    for (int iter = 0; iter < 50; iter++) {
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
        }
        struct nlmsghdr *last_n = NULL;
        for (int c = 1; c <= NUM_CLASSES; c++) {
            last_n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
        }
        if (last_n) last_n->nlmsg_flags |= NLM_F_ACK;
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        if (batch_send(nl_fd, &b) < 0) {
            printf("[-] batch_send failed\n");
            continue;
        }
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // The timers fire 1 second after they are armed.
        // We want to delete the root qdisc slightly before they fire.
        // We vary the sleep time to sweep across the race window.
        long sleep_us = 995000 - elapsed_us + (iter * 500); // 995ms to 1019.5ms
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit to let asynchronous destruction finish
        usleep(50000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    racer(NULL);
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 1000

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = { .rate = 1, .linklayer = 1 },
        .ceil = { .rate = 1, .linklayer = 1 },
        .buffer = 1000, .cbuffer = 1000, .quantum = 1000, .prio = 0
    };
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct tc_sfq_qopt opt = {
        .perturb_period = 1,
        .limit = 1000,
        .divisor = 1024,
        .flows = 127
    };
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b) {
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == b->seq - 1) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) return -1;
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    
    int sndbuf = 2 * 1024 * 1024;
    int rcvbuf = 2 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int ifindex = get_ifindex("lo");
    if (ifindex < 0) {
        printf("[-] Failed to get ifindex for lo\n");
        close(nl_fd);
        return NULL;
    }
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        perror("socket AF_PACKET");
        close(nl_fd);
        return NULL;
    }
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char pkt[64] = {0};
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Starting race loop...\n");
    for (int iter = 0; iter < 50; iter++) {
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
        }
        struct nlmsghdr *last_n = NULL;
        for (int c = 1; c <= NUM_CLASSES; c++) {
            last_n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
        }
        if (last_n) last_n->nlmsg_flags |= NLM_F_ACK;
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        if (batch_send(nl_fd, &b) < 0) {
            printf("[-] batch_send failed\n");
            continue;
        }
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // The timers fire 1 second after they are armed.
        // We want to delete the root qdisc slightly before they fire.
        // We vary the sleep time to sweep across the race window.
        long sleep_us = 995000 - elapsed_us + (iter * 500); // 995ms to 1019.5ms
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit to let asynchronous destruction finish
        usleep(50000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    racer(NULL);
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

393/3 2026/08/15 18:28 loop
0m
394/4 2026/08/15 18:28 iteration 0
0m
395/5 2026/08/15 18:28 action merge-repro-c
0m Results:
map[CurrentCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 1000

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = { .rate = 1, .linklayer = 1 },
        .ceil = { .rate = 1, .linklayer = 1 },
        .buffer = 1000, .cbuffer = 1000, .quantum = 1000, .prio = 0
    };
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct tc_sfq_qopt opt = {
        .perturb_period = 1,
        .limit = 1000,
        .divisor = 1024,
        .flows = 127
    };
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b) {
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == b->seq - 1) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) return -1;
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    
    int sndbuf = 2 * 1024 * 1024;
    int rcvbuf = 2 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int ifindex = get_ifindex("lo");
    if (ifindex < 0) {
        printf("[-] Failed to get ifindex for lo\n");
        close(nl_fd);
        return NULL;
    }
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        perror("socket AF_PACKET");
        close(nl_fd);
        return NULL;
    }
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char pkt[64] = {0};
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Starting race loop...\n");
    for (int iter = 0; iter < 50; iter++) {
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
        }
        struct nlmsghdr *last_n = NULL;
        for (int c = 1; c <= NUM_CLASSES; c++) {
            last_n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
        }
        if (last_n) last_n->nlmsg_flags |= NLM_F_ACK;
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        if (batch_send(nl_fd, &b) < 0) {
            printf("[-] batch_send failed\n");
            continue;
        }
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // The timers fire 1 second after they are armed.
        // We want to delete the root qdisc slightly before they fire.
        // We vary the sleep time to sweep across the race window.
        long sleep_us = 995000 - elapsed_us + (iter * 500); // 995ms to 1019.5ms
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit to let asynchronous destruction finish
        usleep(50000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    racer(NULL);
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

396/5 2026/08/15 18:28 action compile-c-prog
0m Results:
map[CompilerError: FormattedReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 1000

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = { .rate = 1, .linklayer = 1 },
        .ceil = { .rate = 1, .linklayer = 1 },
        .buffer = 1000, .cbuffer = 1000, .quantum = 1000, .prio = 0
    };
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct tc_sfq_qopt opt = {
        .perturb_period = 1,
        .limit = 1000,
        .divisor = 1024,
        .flows = 127
    };
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b) {
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == b->seq - 1) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) return -1;
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    
    int sndbuf = 2 * 1024 * 1024;
    int rcvbuf = 2 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int ifindex = get_ifindex("lo");
    if (ifindex < 0) {
        printf("[-] Failed to get ifindex for lo\n");
        close(nl_fd);
        return NULL;
    }
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        perror("socket AF_PACKET");
        close(nl_fd);
        return NULL;
    }
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char pkt[64] = {0};
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Starting race loop...\n");
    for (int iter = 0; iter < 50; iter++) {
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
        }
        struct nlmsghdr *last_n = NULL;
        for (int c = 1; c <= NUM_CLASSES; c++) {
            last_n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
        }
        if (last_n) last_n->nlmsg_flags |= NLM_F_ACK;
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        if (batch_send(nl_fd, &b) < 0) {
            printf("[-] batch_send failed\n");
            continue;
        }
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // The timers fire 1 second after they are armed.
        // We want to delete the root qdisc slightly before they fire.
        // We vary the sleep time to sweep across the race window.
        long sleep_us = 995000 - elapsed_us + (iter * 500); // 995ms to 1019.5ms
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit to let asynchronous destruction finish
        usleep(50000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    racer(NULL);
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

397/5 2026/08/15 18:28 action If
0m Args:
map[CompilerError:]

398/3 2026/08/15 18:28 action run-c-repro
8m Results:
map[CandidateBugTitle: CandidateCrashReport: CandidateReproduced:false ConsoleOutput:[  112.509438][   T33] kauditd_printk_skb: 10 callbacks suppressed
[  112.509457][   T33] audit: type=1400 audit(1786818622.070:200): avc:  denied  { transition } for  pid=5830 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  112.525866][   T33] audit: type=1400 audit(1786818622.080:201): avc:  denied  { noatsecure } for  pid=5830 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  112.549604][   T33] audit: type=1400 audit(1786818622.080:202): avc:  denied  { rlimitinh } for  pid=5830 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  112.569442][   T33] audit: type=1400 audit(1786818622.080:203): avc:  denied  { siginh } for  pid=5830 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.044304][   T33] audit: type=1400 audit(1786818626.600:204): avc:  denied  { write } for  pid=5841 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.184922][   T33] audit: type=1400 audit(1786818626.750:205): avc:  denied  { write } for  pid=5844 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.336591][   T33] audit: type=1400 audit(1786818626.900:206): avc:  denied  { write } for  pid=5847 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.450774][   T33] audit: type=1400 audit(1786818627.010:207): avc:  denied  { write } for  pid=5850 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.639734][   T33] audit: type=1400 audit(1786818627.200:208): avc:  denied  { write } for  pid=5853 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.744916][   T33] audit: type=1400 audit(1786818627.300:209): avc:  denied  { write } for  pid=5856 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.920527][   T33] audit: type=1400 audit(1786818627.480:210): avc:  denied  { write } for  pid=5859 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.026852][   T33] audit: type=1400 audit(1786818627.590:211): avc:  denied  { write } for  pid=5862 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.195658][   T33] audit: type=1400 audit(1786818627.760:212): avc:  denied  { write } for  pid=5865 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.295694][   T33] audit: type=1400 audit(1786818627.860:213): avc:  denied  { write } for  pid=5868 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.591348][   T33] audit: type=1400 audit(1786818628.150:214): avc:  denied  { write } for  pid=5871 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.737653][   T33] audit: type=1400 audit(1786818628.300:215): avc:  denied  { write } for  pid=5874 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.940318][   T33] audit: type=1400 audit(1786818628.500:216): avc:  denied  { write } for  pid=5877 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  119.042229][   T33] audit: type=1400 audit(1786818628.600:217): avc:  denied  { write } for  pid=5880 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:14770' (ED25519) to the list of known hosts.
[  133.465205][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  133.471605][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[  194.898300][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  194.902232][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[+] unshare successful.
[+] Starting race loop...
[+] Done.
 OtherCrashReports:<nil> StraceOutput:/strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor1193107586

<...>
911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
sendto(3, [[{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=1, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x1c\x00\x02\x00\x18\x00\x02\x00\x03\x00\x00\x00\x0a\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=2, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x01\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=4, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x03\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=5, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x04\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=6, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x05\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=7, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x06\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=8, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x07\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=9, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x08\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=10, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=11, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x0a\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=12, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x0b\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? 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*/, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=82, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x51\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=83, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x52\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=84, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x53\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=85, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x54\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=86, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x55\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=87, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x56\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=88, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x57\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=89, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x58\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=90, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x59\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=91, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5a\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=92, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5b\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=93, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5c\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=94, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5d\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=95, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5e\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=96, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5f\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=97, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x60\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=98, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x61\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=99, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x62\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=100, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x63\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], ...], 164072, 0, NULL, 0) = 164072
recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=2001, nlmsg_pid=5911}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=2001, nlmsg_pid=5911}}], 8192, 0, NULL, NULL) = 36
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65537], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65538], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65539], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65540], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65541], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65542], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65543], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65544], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65545], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65546], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65547], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65548], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65549], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65550], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65551], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65552], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65553], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65554], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65555], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65556], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65557], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65558], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65559], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65560], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65561], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65562], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65563], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65564], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65565], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65566], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65567], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65568], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65569], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65570], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65571], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65572], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65573], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65574], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65575], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65576], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65577], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65578], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65579], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65580], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65581], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65582], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65583], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65584], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65585], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65586], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65587], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65588], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65589], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65590], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65591], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65592], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65593], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65594], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65595], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65596], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65597], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65598], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65599], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65600], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65601], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65602], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65603], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65604], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65605], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65606], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65607], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65608], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65609], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65610], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65611], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65612], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65613], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65614], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65615], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65616], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65617], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65618], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65619], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65620], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65621], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65622], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65623], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65624], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65625], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65626], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65627], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65628], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65629], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65630], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65631], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65632], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65633], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65634], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65635], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65636], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65637], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65638], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65639], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65640], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65641], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65642], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65643], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65644], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65645], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65646], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65647], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65648], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65649], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65650], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65651], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65652], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65653], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65654], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65655], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65656], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65657], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65658], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65659], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65660], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65661], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65662], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65663], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65664], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65665], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65666], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65667], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65668], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65669], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65670], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65671], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65672], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65673], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65674], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65675], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65676], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65677], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65678], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65679], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65680], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65681], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65682], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65683], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65684], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65685], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65686], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65687], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65688], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65689], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65690], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65691], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65692], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65693], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65694], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65695], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64

[host] Command execution timed out after 2m30s
 TestError:]

399/3 2026/08/15 18:37 action truncate-log
0m Results:
map[TruncatedConsoleOutput:[  112.509438][   T33] kauditd_printk_skb: 10 callbacks suppressed
[  112.509457][   T33] audit: type=1400 audit(1786818622.070:200): avc:  denied  { transition } for  pid=5830 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  112.525866][   T33] audit: type=1400 audit(1786818622.080:201): avc:  denied  { noatsecure } for  pid=5830 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  112.549604][   T33] audit: type=1400 audit(1786818622.080:202): avc:  denied  { rlimitinh } for  pid=5830 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  112.569442][   T33] audit: type=1400 audit(1786818622.080:203): avc:  denied  { siginh } for  pid=5830 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.044304][   T33] audit: type=1400 audit(1786818626.600:204): avc:  denied  { write } for  pid=5841 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.184922][   T33] audit: type=1400 audit(1786818626.750:205): avc:  denied  { write } for  pid=5844 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.336591][   T33] audit: type=1400 audit(1786818626.900:206): avc:  denied  { write } for  pid=5847 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.450774][   T33] audit: type=1400 audit(1786818627.010:207): avc:  denied  { write } for  pid=5850 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.639734][   T33] audit: type=1400 audit(1786818627.200:208): avc:  denied  { write } for  pid=5853 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.744916][   T33] audit: type=1400 audit(1786818627.300:209): avc:  denied  { write } for  pid=5856 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.920527][   T33] audit: type=1400 audit(1786818627.480:210): avc:  denied  { write } for  pid=5859 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.026852][   T33] audit: type=1400 audit(1786818627.590:211): avc:  denied  { write } for  pid=5862 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.195658][   T33] audit: type=1400 audit(1786818627.760:212): avc:  denied  { write } for  pid=5865 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.295694][   T33] audit: type=1400 audit(1786818627.860:213): avc:  denied  { write } for  pid=5868 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.591348][   T33] audit: type=1400 audit(1786818628.150:214): avc:  denied  { write } for  pid=5871 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.737653][   T33] audit: type=1400 audit(1786818628.300:215): avc:  denied  { write } for  pid=5874 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.940318][   T33] audit: type=1400 audit(1786818628.500:216): avc:  denied  { write } for  pid=5877 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  119.042229][   T33] audit: type=1400 audit(1786818628.600:217): avc:  denied  { write } for  pid=5880 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:14770' (ED25519) to the list of known hosts.
[  133.465205][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  133.471605][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[  194.898300][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  194.902232][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[+] unshare successful.
[+] Starting race loop...
[+] Done.
 TruncatedCrashReport: TruncatedStraceOutput:getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
sendto(3, [[{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=1, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x1c\x00\x02\x00\x18\x00\x02\x00\x03\x00\x00\x00\x0a\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=2, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x01\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? 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*/, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=7, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x06\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=8, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x07\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=9, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x08\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? 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*/, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=91, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5a\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=92, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5b\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=93, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5c\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=94, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5d\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=95, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5e\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=96, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5f\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=97, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x60\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=98, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x61\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=99, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x62\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=100, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x63\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], ...], 164072, 0, NULL, 0) = 164072
recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=2001, nlmsg_pid=5911}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=2001, nlmsg_pid=5911}}], 8192, 0, NULL, NULL) = 36
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65537], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65538], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65539], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65540], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65541], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65542], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65543], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65544], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65545], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65546], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65547], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65548], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65549], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65550], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65551], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65552], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65553], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65554], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65555], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65556], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65557], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65558], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65559], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65560], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65561], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65562], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65563], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65564], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65565], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65566], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65567], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65568], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65569], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65570], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65571], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65572], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65573], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65574], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65575], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65576], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65577], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65578], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65579], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65580], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65581], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65582], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65583], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65584], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65585], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65586], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65587], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65588], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65589], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65590], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65591], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65592], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65593], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65594], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65595], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65596], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65597], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65598], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65599], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65600], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65601], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65602], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65603], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65604], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65605], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65606], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65607], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65608], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65609], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65610], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65611], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65612], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65613], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65614], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65615], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65616], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65617], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65618], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65619], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65620], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65621], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65622], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65623], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65624], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65625], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65626], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65627], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65628], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65629], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65630], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65631], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65632], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65633], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65634], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65635], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65636], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65637], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65638], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65639], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65640], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65641], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65642], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65643], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65644], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65645], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65646], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65647], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65648], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65649], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65650], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65651], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65652], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65653], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65654], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65655], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65656], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65657], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65658], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65659], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65660], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65661], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65662], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65663], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65664], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65665], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65666], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65667], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65668], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65669], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65670], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65671], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65672], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65673], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65674], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65675], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65676], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65677], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65678], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65679], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65680], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65681], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65682], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65683], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65684], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65685], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65686], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65687], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65688], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65689], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65690], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65691], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65692], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65693], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65694], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65695], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64

[host] Command execution timed out after 2m30s
]

400/3 2026/08/15 18:37 agent repro-oracle
6m Model:
best-expensive

Results:
map[Feedback:The reproducer failed to trigger the warning because it attempts to hit a very narrow race condition window, and the current reproducer logic does not widen this window sufficiently or coordinate the timing well enough.

**Technical Diagnosis:**
The bug is a race condition between the destruction of a parent qdisc (e.g., HTB) and the `sfq_perturbation` timer of its child SFQ qdisc.
1. When the root HTB qdisc is replaced or the network namespace is destroyed, `qdisc_put()` is called on the root qdisc, which invokes `__qdisc_destroy()`.
2. `__qdisc_destroy()` first removes the HTB qdisc from the global qdisc hash via `qdisc_hash_del()`.
3. It then calls `ops->destroy()` (`htb_destroy`), which iterates over all HTB classes and destroys their child qdiscs. For SFQ, this eventually calls `sfq_destroy()`, which stops the `sfq_perturbation` timer via `timer_delete_sync()`.
4. If the `sfq_perturbation` timer fires *after* the HTB qdisc is removed from the hash (step 2) but *before* the timer is synchronously canceled (step 3), it will execute `sfq_rehash()`.
5. `sfq_rehash()` calls `qdisc_tree_reduce_backlog()`, which attempts to look up the parent HTB qdisc using `qdisc_lookup_rcu()`.
6. Since the HTB qdisc was already removed from the hash, the lookup fails, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

**Why the reproducer failed:**
The window between `qdisc_hash_del()` and `timer_delete_sync()` is extremely small. The reproducer creates only 100 HTB classes, which means `htb_destroy()` finishes very quickly, making the race window too narrow to reliably hit with a timer that fires at most once per jiffy. Furthermore, `sfq_rehash()` is only called if `q->tail != NULL` (i.e., the SFQ queue is not empty). If packets are dequeued too quickly by the loopback device, the queue will be empty when the timer fires, and the buggy path won't be reached.

**How to improve the reproducer:**
1. **Widen the race window:** Create a much larger number of HTB classes (e.g., 10,000) and attach the SFQ qdisc to one of the last classes. This will force `htb_destroy()` to spend a significant amount of time iterating over classes before it reaches the SFQ qdisc and cancels its timer.
2. **Ensure the queue is not empty:** Set the HTB class rate to an extremely low value (e.g., 8 bps) so that injected packets remain queued in the SFQ qdisc for a long time, ensuring `q->tail != NULL` when the timer fires.
3. **Maximize timer frequency:** Ensure the SFQ `perturb` parameter is set to the minimum possible non-zero value (1 second) to increase the chance of the timer firing during the window.
4. **Concurrency:** Run the qdisc replacement (`tc qdisc replace ...`) in a tight loop on one CPU while the timer is allowed to fire on another CPU. ProbePassed:false TerminalError: TitleMatches:false]

Instruction:
You are a security researcher with deep Linux kernel background.
Analyze the results of running the generated program.

=== CRITICAL ENVIRONMENT & TARGET CLASSIFICATION ===
Set 'TerminalError' to a descriptive error message ONLY if:
1. The execution failed due to missing hardware device nodes, subsystems, kernel modules, or privilege limits
   that cannot be loaded, created, or bypassed by user-space C code edits in the VM guest.
2. The target source files or functions described in the bug description do not exist in the checked-out codebase,
   meaning the codebase version is mismatched and the target code is absent.

=== CRITICAL PROHIBITIONS ===
- Do NOT classify a run as a terminal failure or assume a bug is fixed based on git log entries, commit titles,
  or commit messages. Reproducibility can ONLY be determined by executing reproducer candidates in the VM.
- Do NOT suggest C code strategies, repairs, or namespace bypasses when setting 'TerminalError'.


=== PHASE 2: BUG REPRODUCTION (EVALUATION) ===
The executed program was a full reproducer candidate attempting to trigger the target bug/crash.
Use this to guide your classification and feedback:
1. If a crash was triggered (Reproduced is true):
   - Determine if the triggered crash matches the expected bug.
   - If you conclude they represent the same underlying bug (the same root cause)
     despite different titles, crash signatures, or call traces, set TitleMatches
     to true and provide a detailed, technical, and verbose explanation of the
     equivalence in the 'Feedback' field.
   - If they do not represent the same bug (a completely unrelated crash/collision),
     set TitleMatches to false and explain the collision in 'Feedback'.
   - If they match exactly, set TitleMatches to true and provide a brief confirmation in 'Feedback'.
2. If the execution was successful (exit 0) WITHOUT a crash (Reproduced is false):
   - The reproduction attempt failed to trigger the bug. Analyze the console/strace output
     to understand why the bug did not trigger (e.g., timing, input arguments, environment setup)
     and provide feedback on how to improve the reproducer logic to trigger the crash.

Critical Diagnostic Rule for Reproduction Failures:
If the reproduction attempt fails (e.g., a system call returns an error, or a
warning/error message appears in the console log), you MUST:
1. Identify the failing system call from the execution trace or strace output.
2. Identify any corresponding warning or error messages in the console log.
3. Immediately search the kernel source tree for the warning message strings or
   the code of the failing system call/subsystem to locate the validation logic.
4. Trace the kernel's validation logic to diagnose the exact constraint violation
   or input mismatch in the generated program.
5. Provide a technical diagnosis in the feedback explaining the exact kernel constraint that was violated and why.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

IsProbe: false
Reproduced: false
Console Output: [  112.509438][   T33] kauditd_printk_skb: 10 callbacks suppressed
[  112.509457][   T33] audit: type=1400 audit(1786818622.070:200): avc:  denied  { transition } for  pid=5830 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  112.525866][   T33] audit: type=1400 audit(1786818622.080:201): avc:  denied  { noatsecure } for  pid=5830 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  112.549604][   T33] audit: type=1400 audit(1786818622.080:202): avc:  denied  { rlimitinh } for  pid=5830 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  112.569442][   T33] audit: type=1400 audit(1786818622.080:203): avc:  denied  { siginh } for  pid=5830 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.044304][   T33] audit: type=1400 audit(1786818626.600:204): avc:  denied  { write } for  pid=5841 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.184922][   T33] audit: type=1400 audit(1786818626.750:205): avc:  denied  { write } for  pid=5844 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.336591][   T33] audit: type=1400 audit(1786818626.900:206): avc:  denied  { write } for  pid=5847 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.450774][   T33] audit: type=1400 audit(1786818627.010:207): avc:  denied  { write } for  pid=5850 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.639734][   T33] audit: type=1400 audit(1786818627.200:208): avc:  denied  { write } for  pid=5853 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.744916][   T33] audit: type=1400 audit(1786818627.300:209): avc:  denied  { write } for  pid=5856 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  117.920527][   T33] audit: type=1400 audit(1786818627.480:210): avc:  denied  { write } for  pid=5859 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.026852][   T33] audit: type=1400 audit(1786818627.590:211): avc:  denied  { write } for  pid=5862 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.195658][   T33] audit: type=1400 audit(1786818627.760:212): avc:  denied  { write } for  pid=5865 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.295694][   T33] audit: type=1400 audit(1786818627.860:213): avc:  denied  { write } for  pid=5868 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.591348][   T33] audit: type=1400 audit(1786818628.150:214): avc:  denied  { write } for  pid=5871 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.737653][   T33] audit: type=1400 audit(1786818628.300:215): avc:  denied  { write } for  pid=5874 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  118.940318][   T33] audit: type=1400 audit(1786818628.500:216): avc:  denied  { write } for  pid=5877 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  119.042229][   T33] audit: type=1400 audit(1786818628.600:217): avc:  denied  { write } for  pid=5880 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:14770' (ED25519) to the list of known hosts.
[  133.465205][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  133.471605][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[  194.898300][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  194.902232][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[+] unshare successful.
[+] Starting race loop...
[+] Done.

Strace Output: getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
getpid()                                = 5911
sendto(3, [[{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=1, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x1c\x00\x02\x00\x18\x00\x02\x00\x03\x00\x00\x00\x0a\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=2, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x01\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? 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*/, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=7, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x06\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=8, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x07\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=9, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x08\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=10, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=11, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x0a\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=12, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x0b\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=13, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x0c\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=14, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x0d\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=15, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x0e\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=16, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x0f\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=17, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x10\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=18, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x11\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=19, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x12\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=20, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x13\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=21, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x14\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? 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*/, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=91, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5a\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=92, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5b\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=93, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5c\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=94, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5d\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=95, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5e\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=96, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x5f\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=97, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x60\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=98, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x61\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=99, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x62\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], [{nlmsg_len=96, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=100, nlmsg_pid=5911}, "\x00\x00\x00\x00\x01\x00\x00\x00\x63\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x34\x00\x02\x00\x30\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"], ...], 164072, 0, NULL, 0) = 164072
recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=2001, nlmsg_pid=5911}, {error=0, msg={nlmsg_len=68, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=2001, nlmsg_pid=5911}}], 8192, 0, NULL, NULL) = 36
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65537], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65538], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65539], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65540], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65541], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65542], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65543], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65544], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65545], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65546], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65547], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65548], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65549], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65550], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65551], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65552], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65553], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65554], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65555], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65556], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65557], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65558], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65559], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65560], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65561], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65562], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65563], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65564], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65565], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65566], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65567], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65568], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65569], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65570], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65571], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65572], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65573], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65574], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65575], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65576], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65577], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65578], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65579], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65580], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65581], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65582], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65583], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65584], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65585], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65586], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65587], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65588], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65589], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65590], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65591], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65592], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65593], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65594], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65595], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65596], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65597], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65598], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65599], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65600], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65601], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65602], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65603], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65604], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65605], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65606], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65607], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65608], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65609], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65610], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65611], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65612], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65613], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65614], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65615], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65616], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65617], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65618], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65619], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65620], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65621], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65622], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65623], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65624], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65625], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65626], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65627], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65628], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65629], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65630], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65631], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65632], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65633], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65634], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65635], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65636], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65637], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65638], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65639], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65640], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65641], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65642], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65643], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65644], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65645], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65646], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65647], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65648], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65649], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65650], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65651], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65652], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65653], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65654], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65655], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65656], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65657], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65658], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65659], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65660], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65661], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65662], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65663], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65664], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65665], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65666], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65667], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65668], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65669], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65670], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65671], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65672], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65673], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65674], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65675], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65676], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65677], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65678], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65679], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65680], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65681], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65682], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65683], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65684], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65685], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65686], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65687], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65688], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65689], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65690], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65691], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65692], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65693], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65694], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64
setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65695], 4) = 0
sendto(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), sll_hatype=ARPHRD_NETROM, sll_pkttype=PACKET_HOST, sll_halen=6, sll_addr=[00, 00, 00, 00, 00, 00]}, 20) = 64

[host] Command execution timed out after 2m30s

Crash Report: 


401/4 2026/08/15 18:37 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 128277
							output: 42
							thoughts: 780
						

Thoughts:
**My Thoughts on Investigating the `qdisc_tree_reduce_backlog` Warning**

Alright, so I've got this bug report about a `WARNING in qdisc_tree_reduce_backlog`, specifically a `WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29`. This looks like a kernel-level issue related to packet scheduling.

The initial attempt to reproduce it failed. The reproducer ran, but it timed out after a rather lengthy 2 minutes and 30 seconds, and crucially, `Reproduced: false`. This means the specific conditions that trigger the bug aren't being met by the standard reproducer. I also see `IsProbe: false`, which suggests we're not actively using any dynamic tracing probes to capture this.

My next step was to dig into the `strace` output from the reproducer run. This is where I started to piece things together. I see it's establishing a netlink socket and then sending a series of messages of types `NLMSG_???` (specifically `0x24` and `0x28`). This is typical for userspace interacting with the kernel's networking stack, likely configuring something.

Then, the key piece emerges: it creates an `AF_PACKET` socket (assigned file descriptor 4) and starts sending a significant number of packets. What's particularly interesting is that these packets have varying `SO_PRIORITY` values being set. The `strace` output shows a clear pattern: `setsockopt(4, SOL_SOCKET, SO_PRIORITY, [65537], 4) = 0` followed by `sendto(4, ..., 64, 0, {sa_family=AF_PACKET, sll_protocol=htons(0 /* ETH_P_??? */), sll_ifindex=if_nametoindex("lo"), ...}, 20) = 64`. This confirms it's pushing data onto the loopback interface (`lo`) with these specific priority settings.

Given the bug report points to `qdisc_tree_reduce_backlog` and the call trace shows it being invoked through `sfq_rehash`, which is then called by `sfq_perturbation`, and ultimately through timer functions (`call_timer_fn`), it strongly suggests a race condition or a state management issue within the SFQ (Stochastic Fairness Queuing) scheduler, potentially related to how it handles packet backlogs when priorities are manipulated or timers fire.

My immediate focus now is to thoroughly examine the code at `net/sched/sch_sfq.c:601` (where `sfq_rehash` is called) and `net/sched/sch_api.c:797` (the exact location of the warning). I need to understand the logic within these functions, particularly how they interact with the backlog and timers, and how the `SO_PRIORITY` changes, especially those large values like `65537`, might be affecting the state that leads to this warning. I'm looking for scenarios where the backlog reduction might be attempted under inconsistent conditions or where a timer might be trying to clean up while the scheduler is in an unexpected state due to the packet sending pattern.


402/4 2026/08/15 18:37 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

403/4 2026/08/15 18:37 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 129701
							output: 39
							thoughts: 98
						

Thoughts:
**A Deep Dive into a Potential Network Scheduler Anomaly**

My current line of inquiry is focused on a peculiar warning message I've encountered within the netfilter/net-sched subsystem, specifically at `net/sched/sch_api.c:797`. The warning itself is quite explicit: `WARN_ON_ONCE(parentid != TC_H_ROOT);`. This immediately signals a condition where I'm attempting to perform an operation with a `parentid` that isn't the root of the traffic control hierarchy, yet the system is expecting it to be.

My investigation has traced the origin of this warning to a specific point in the execution flow: it's triggered when the `qdisc_lookup_rcu` function returns `NULL`. This function, as I understand it, is responsible for locating a queueing discipline (qdisc) given a device and a major qdisc handle. A `NULL` return value here implies that the qdisc I'm trying to access via `TC_H_MAJ(parentid)` simply doesn't exist in the RCU-protected data structures.

Digging further into the call trace, I've found that this problematic scenario arises from the `sfq_rehash` function, which in turn is invoked by `sfq_perturbation`. This tells me that the issue is likely related to the Stochastic Fairness Queuing (SFQ) scheduler's rehashing or perturbation mechanism. It suggests that during these operations, an attempt is being made to access a parent qdisc that should either exist (and is therefore expected to be `TC_H_ROOT` in this specific context, hence the warning) or is being improperly referenced. The fact that `qdisc_lookup_rcu` is failing to find the expected qdisc, coupled with the warning about the `parentid` not being `TC_H_ROOT`, points towards a potential misconfiguration or a race condition where a necessary qdisc has been deleted or never properly established before `sfq_rehash` or `sfq_perturbation` attempts to use it. My next step is to meticulously examine the state of the qdiscs and their parent-child relationships when `sfq_perturbation` is active, particularly focusing on the lifecycle of the qdiscs involved and how their handles are managed.


404/4 2026/08/15 18:37 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

405/4 2026/08/15 18:37 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 131037
							output: 39
							thoughts: 101
						

Thoughts:
**A Deep Dive into a Lingering Qdisc Issue**

My current train of thought is focused on a perplexing warning I'm encountering. It appears when `qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid))` returns `NULL`. At its core, this `NULL` return signifies that the intended parent queuing discipline (qdisc) simply isn't there – it's not found.

This leads me to ponder the fundamental question: under what circumstances would a parent qdisc cease to exist while its child, specifically an `sfq` qdisc in this scenario, remains operational? The most plausible explanation, and the one I'm actively investigating, is that the parent qdisc has been destroyed. However, the `sfq` qdisc, for whatever reason, is still alive and kicking. This lingering existence of the child is then evidenced by its timer, `sfq_perturbation`, firing. The fact that this timer is active, attempting to interact with a non-existent parent, is what's triggering this warning. Therefore, my immediate next step is to delve into the intricacies of the `sfq_perturbation` timer function itself to understand its behavior and how it might be contributing to this state.


406/4 2026/08/15 18:37 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_perturbation]

Results:
map[SourceCode: 604:	static void sfq_perturbation(struct timer_list *t)
 605:	{
 606:		struct sfq_sched_data *q = timer_container_of(q, t, perturb_timer);
 607:		struct Qdisc *sch = q->sch;
 608:		spinlock_t *root_lock;
 609:		siphash_key_t nkey;
 610:		int period;
 611:	
 612:		get_random_bytes(&nkey, sizeof(nkey));
 613:		rcu_read_lock();
 614:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 615:		spin_lock(root_lock);
 616:		q->perturbation = nkey;
 617:		if (!q->filter_list && q->tail)
 618:			sfq_rehash(sch);
 619:		spin_unlock(root_lock);
 620:	
 621:		/* q->perturb_period can change under us from
 622:		 * sfq_change() and sfq_destroy().
 623:		 */
 624:		period = READ_ONCE(q->perturb_period);
 625:		if (period)
 626:			mod_timer(&q->perturb_timer, jiffies + period);
 627:		rcu_read_unlock();
 628:	}
 SourceFile:net/sched/sch_sfq.c]

407/4 2026/08/15 18:37 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 131583
							output: 38
							thoughts: 119
						

Thoughts:
**My Internal Monologue on Qdisc Destruction and RCU**

I'm grappling with a seemingly paradoxical situation regarding qdisc destruction. My initial thought is, "Wait, if the parent qdisc is destroyed, how can the child qdisc still be alive?" This stems from the fundamental understanding that when a parent object is eliminated, its dependent children should logically follow suit.

However, I'm recalling a crucial detail about qdisc destruction: it's not an immediate, synchronous event. Instead, it's RCU (Read-Copy Update) delayed. This means that the actual freeing of resources associated with a qdisc happens asynchronously, after all other readers have finished accessing it.

Digging into the mechanism, I see that `qdisc_destroy` itself doesn't directly free the memory. Instead, it calls `qdisc_put`. And `qdisc_put` is where the RCU delay is initiated: it eventually leads to `qdisc_free`, which in turn schedules the actual destruction via `call_rcu(&sch->rcu, __qdisc_destroy)`.

The real cleanup then occurs within `__qdisc_destroy`, which invokes the specific `destroy` operation defined by the qdisc's operations structure, `sch->ops->destroy(sch)`. This is where the per-qdisc cleanup logic resides. For instance, in the case of `sfq` (Stochastic Fairness Queuing), this `sfq_destroy` function would be responsible for deleting any associated timers, which is a critical step to prevent lingering processes and resource leaks.

So, my initial confusion is resolved by understanding the RCU delayed nature of qdisc destruction. The parent's destruction is scheduled, but the actual deallocation of its children and their associated resources is deferred until it's safe, ensuring no ongoing operations are interrupted.


408/4 2026/08/15 18:37 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_destroy]

Results:
map[SourceCode: 765:	static void sfq_destroy(struct Qdisc *sch)
 766:	{
 767:		struct sfq_sched_data *q = qdisc_priv(sch);
 768:	
 769:		tcf_block_put(q->block);
 770:		WRITE_ONCE(q->perturb_period, 0);
 771:		timer_delete_sync(&q->perturb_timer);
 772:		sfq_free(q->ht);
 773:		sfq_free(q->slots);
 774:		kfree(q->red_parms);
 775:	}
 SourceFile:net/sched/sch_sfq.c]

409/4 2026/08/15 18:37 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 131927
							output: 37
							thoughts: 281
						

Thoughts:
**The RCU Callback Conundrum: A Potential Race Condition**

It seems I've stumbled upon a rather concerning race condition during the destruction of a qdisc. My initial thought process led me to notice that `timer_delete_sync` is being invoked within `sfq_destroy`. This is problematic because `sfq_destroy` itself is triggered from `__qdisc_destroy`, which, critically, is executed within an RCU callback.

This means there's a window of vulnerability: a period between when the parent qdisc is removed from the qdisc tree (during `qdisc_destroy`) and when the associated timer is actually deleted (in `__qdisc_destroy`). During this interval, the timer is still active and *can* fire.

When this timer fires, it triggers `sfq_perturbation`, which in turn calls `sfq_rehash`. The `sfq_rehash` function then proceeds to call `qdisc_tree_reduce_backlog`. Here's where the real danger lies: `qdisc_tree_reduce_backlog` attempts to look up the parent qdisc using `qdisc_lookup_rcu`. However, by this point, the parent qdisc might have already been removed from the device's qdisc tree.

I briefly considered that `qdisc_lookup_rcu` might still succeed due to lookup by handle. But then I remembered that `qdisc_lookup_rcu` performs its lookup using the handle. If the parent has been removed from the tree, it logically shouldn't be found through this mechanism.

So, the question becomes: is the parent qdisc indeed removed from the tree *before* `__qdisc_destroy` is reached? My investigation of `qdisc_destroy` reveals that `qdisc_hash_del(sch)` is called prior to `qdisc_put(sch)`. However, upon closer inspection, `qdisc_destroy` doesn't directly invoke `qdisc_hash_del`. I need to re-examine the exact sequence within `qdisc_destroy` to confirm this critical ordering.


410/4 2026/08/15 18:37 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_destroy]

Results:
map[SourceCode:1133:	void qdisc_destroy(struct Qdisc *qdisc)
1134:	{
1135:		if (qdisc->flags & TCQ_F_BUILTIN)
1136:			return;
1137:	
1138:		__qdisc_destroy(qdisc);
1139:	}
 SourceFile:net/sched/sch_generic.c]

411/4 2026/08/15 18:37 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 132348
							output: 38
							thoughts: 45
						

Thoughts:
**My Thought Process Regarding `qdisc_destroy` and `__qdisc_destroy`**

So, my initial reaction upon seeing the code was a bit of surprise – I thought `qdisc_destroy` was making a direct call to `__qdisc_destroy`. My immediate follow-up question was whether `__qdisc_destroy` itself was subject to RCU (Read-Copy-Update) delayed destruction. It's crucial for me to understand the lifecycle and potential race conditions, and the RCU mechanism is a key part of how we manage concurrent access and memory reclamation in this kernel context. To get a definitive answer and clarify this point, I need to dive directly into the implementation of `__qdisc_destroy` itself.


412/4 2026/08/15 18:37 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

413/4 2026/08/15 18:37 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 132813
							output: 36
							thoughts: 214
						

Thoughts:
**My Thought Process Unraveling a Synchronization Puzzle**

Okay, so I'm tracing the execution path here and I've noticed something interesting. It appears that `qdisc_hash_del` is being invoked within `__qdisc_destroy`. Following that, `ops->destroy(qdisc)` is also called in `__qdisc_destroy`. This implies, to me, that `sfq_destroy` is being executed *synchronously*.

Now, this synchronous execution of `sfq_destroy` is what's really catching my attention. Because if `sfq_destroy` is synchronous, it then calls `timer_delete_sync(&q->perturb_timer)`. My immediate deduction from this is that the timer, `perturb_timer`, simply cannot fire *after* `sfq_destroy` has completed.

This leads me to a critical question: If the timer can't fire afterwards, how is it possible for `qdisc_tree_reduce_backlog` to be called in a state where its parent is missing? My first hypothesis is that the parent has been destroyed, but somehow the child *hasn't* been destroyed.

But then I have to ask myself, how can a parent be destroyed while leaving its child intact? I'm considering scenarios like the child being grafted onto a different parent, or perhaps the child being shared. However, my understanding is that qdiscs themselves aren't typically shared.

So, I'm back to thinking about the parent/child relationship. What if the parent in question is something more complex, like `htb`, `hfsc`, or `cbq`? I recall that when a class is deleted within these structures, its child qdisc *is* destroyed. This seems like a more likely avenue to explore. I need to delve into the specifics of `htb_delete` to see if this is indeed the mechanism at play.


414/4 2026/08/15 18:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_delete]

Results:
map[SourceCode:1696:	static int htb_delete(struct Qdisc *sch, unsigned long arg,
1697:			      struct netlink_ext_ack *extack)
1698:	{
1699:		struct htb_sched *q = qdisc_priv(sch);
1700:		struct htb_class *cl = (struct htb_class *)arg;
1701:		struct Qdisc *new_q = NULL;
1702:		int last_child = 0;
1703:		int err;
1704:	
1705:		/* TODO: why don't allow to delete subtree ? references ? does
1706:		 * tc subsys guarantee us that in htb_destroy it holds no class
1707:		 * refs so that we can remove children safely there ?
1708:		 */
1709:		if (cl->children || qdisc_class_in_use(&cl->common)) {
1710:			NL_SET_ERR_MSG(extack, "HTB class in use");
1711:			return -EBUSY;
1712:		}
1713:	
1714:		if (!cl->level && htb_parent_last_child(cl))
1715:			last_child = 1;
1716:	
1717:		if (q->offload) {
1718:			err = htb_destroy_class_offload(sch, cl, last_child, false,
1719:							extack);
1720:			if (err)
1721:				return err;
1722:		}
1723:	
1724:		if (last_child) {
1725:			struct netdev_queue *dev_queue = sch->dev_queue;
1726:	
1727:			if (q->offload)
1728:				dev_queue = htb_offload_get_queue(cl);
1729:	
1730:			new_q = qdisc_create_dflt(dev_queue, &pfifo_qdisc_ops,
1731:						  cl->parent->common.classid,
1732:						  NULL);
1733:			if (q->offload)
1734:				htb_parent_to_leaf_offload(sch, dev_queue, new_q);
1735:		}
1736:	
1737:		sch_tree_lock(sch);
1738:	
1739:		if (!cl->level)
1740:			qdisc_purge_queue(cl->leaf.q);
1741:	
1742:		/* delete from hash and active; remainder in destroy_class */
1743:		qdisc_class_hash_remove(&q->clhash, &cl->common);
1744:		if (cl->parent)
1745:			cl->parent->children--;
1746:	
1747:		htb_deactivate(q, cl);
1748:	
1749:		if (cl->cmode != HTB_CAN_SEND)
1750:			htb_safe_rb_erase(&cl->pq_node,
1751:					  &q->hlevel[cl->level].wait_pq);
1752:	
1753:		if (last_child)
1754:			htb_parent_to_leaf(sch, cl, new_q);
1755:	
1756:		sch_tree_unlock(sch);
1757:	
1758:		htb_destroy_class(sch, cl);
1759:		return 0;
1760:	}
 SourceFile:net/sched/sch_htb.c]

415/4 2026/08/15 18:38 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 134048
							output: 38
							thoughts: 23
						

Thoughts:
**My Thought Process Upon Encountering `htb_delete`**

Alright, so I've just stumbled upon this `htb_delete` function call. My immediate internal response, given my expertise, is to dissect its immediate implications. I'm not just looking at the name; I'm thinking about what it *does*. And right here, it's explicitly stated: `htb_delete` doesn't just vanish some data; it first initiates a call to `htb_destroy_class(sch, cl)`.

This tells me a few key things right away. Firstly, the deletion process isn't a simple "remove and forget." There's a preliminary cleanup phase involved. The fact that it's calling a specific `destroy_class` function, taking `sch` and `cl` as arguments, suggests a structured approach to resource management. `sch` likely represents some sort of scope or context, perhaps a hash table structure itself, while `cl` very probably signifies a specific class or type of data being managed within that scope.

So, before `htb_delete` even *thinks* about completing its primary task, it's making sure that the associated class `cl` within the given scope `sch` is properly dealt with. This implies that `htb_destroy_class` is responsible for the granular deallocation, the unlinking, or any other necessary housekeeping specific to that class. It's the "cleaning up after yourself" mechanism for a particular category of entries before the overarching deletion of `htb_delete` occurs. This is a good sign; it indicates a deliberate and likely safe design, preventing orphaned resources or memory leaks at the class level. My next step, naturally, would be to understand the intricacies of what `htb_destroy_class` itself is doing.


416/4 2026/08/15 18:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy_class]

Results:
map[SourceCode:1607:	static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
1608:	{
1609:		if (!cl->level) {
1610:			WARN_ON(!cl->leaf.q);
1611:			qdisc_put(cl->leaf.q);
1612:		}
1613:		gen_kill_estimator(&cl->rate_est);
1614:		tcf_block_put(cl->block);
1615:		kfree(cl);
1616:	}
 SourceFile:net/sched/sch_htb.c]

417/4 2026/08/15 18:38 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 134273
							output: 37
							thoughts: 130
						

Thoughts:
**My Thought Process Regarding `qdisc_put` and Destruction**

Okay, so I'm examining the flow around `qdisc_put`. My initial understanding was that `qdisc_put` decrements a reference count, and if that count hits zero, it directly triggers `qdisc_destroy`.

However, a nuance immediately caught my attention. I recall seeing that `qdisc_destroy` itself doesn't necessarily *immediately* destroy the qdisc. Instead, it seems to defer the actual freeing of memory. My thought was, "Does `qdisc_put` RCU delay the destruction?" I was wondering if the reference count dropping to zero and calling `qdisc_destroy` would, in turn, be subject to RCU delays.

Then, I revisited the `qdisc_destroy` function's behavior. It appears that `qdisc_destroy` *itself* doesn't perform the immediate reclamation. Rather, it calls `__qdisc_destroy`. It's within `__qdisc_destroy` that the RCU mechanism comes into play. Specifically, I observed that `__qdisc_destroy` invokes `call_rcu(&qdisc->rcu, qdisc_free_cb)`. This means the actual freeing of the `qdisc` structure, encapsulated by `qdisc_free_cb`, is scheduled to happen safely after any ongoing RCU grace periods have passed.

This led me to refine my understanding: `qdisc_put` *does* call `qdisc_destroy` when the reference count reaches zero. But it's crucial to remember that `qdisc_destroy` itself is the entry point for RCU-delayed destruction, not an immediate, synchronous operation. The direct call to `qdisc_destroy` from `qdisc_put` is not the point where RCU delays are introduced; the delay is managed by `qdisc_destroy`'s internal call to `call_rcu`.

Therefore, my current understanding is: `qdisc_put` handles the reference counting, and upon reaching zero, it delegates the destruction process to `qdisc_destroy`. `qdisc_destroy`, in turn, initiates an RCU-deferred cleanup via `__qdisc_destroy` and `qdisc_free_cb`. I need to be mindful of this RCU aspect when reasoning about the lifecycle of qdisc structures.


418/4 2026/08/15 18:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_put]

Results:
map[SourceCode:1141:	void qdisc_put(struct Qdisc *qdisc)
1142:	{
1143:		if (!qdisc)
1144:			return;
1145:	
1146:		if (qdisc->flags & TCQ_F_BUILTIN ||
1147:		    !refcount_dec_and_test(&qdisc->refcnt))
1148:			return;
1149:	
1150:		__qdisc_destroy(qdisc);
1151:	}
 SourceFile:net/sched/sch_generic.c]

419/4 2026/08/15 18:38 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 134595
							output: 37
							thoughts: 799
						

Thoughts:
**My Thoughts on Qdisc Destruction and Timer Synchronization**

This is proving to be a rather intricate dance between synchronous destruction and asynchronous timer events, and I need to untangle this carefully. My immediate realization is that `qdisc_put` calls `__qdisc_destroy` synchronously. This means that when `qdisc_put` finishes its work, the associated queue discipline (`qdisc`) is effectively gone, or at least well on its way to being destroyed. This, in turn, means that `sfq_destroy` (presumably the destruction routine for the SFQ qdisc) is also called synchronously.

Following this synchronous destruction, I see that `timer_delete_sync` is invoked, again, synchronously. The immediate implication is that the timer associated with this qdisc should not be able to fire *after* `qdisc_put` returns. The kernel's mechanism for `timer_delete_sync` is designed to ensure that the timer is fully stopped and its execution, if already in progress on another CPU, is completed before `timer_delete_sync` itself returns.

However, my mind immediately goes to the edge cases. What if the timer is *already running* on a different CPU when `qdisc_put` is called? In this scenario, `timer_delete_sync` will indeed wait for that running timer to finish. This seems safe, ensuring no race condition where the timer tries to access a destroyed qdisc.

The real concern arises when considering the *reverse* scenario: what if the timer fires, and while its handler function (`sfq_perturbation` in this case) is executing, `qdisc_put` is called on *another* CPU? I need to trace the execution flow within `sfq_perturbation`. It begins by acquiring an RCU read lock (`rcu_read_lock()`) and then proceeds to lock the parent qdisc's root lock (`root_lock = qdisc_lock(qdisc_root_sleeping(sch)); spin_lock(root_lock);`).

Now, consider the `qdisc_put` call happening concurrently on another CPU. It might have already removed the *parent* qdisc from the qdisc tree, but it might not have reached the `timer_delete_sync` call yet. This is where the critical dependency lies.

My attention is drawn to `qdisc_tree_reduce_backlog`, a function that is called from `sfq_rehash` which, in turn, is called from within `sfq_perturbation`. So, if the timer is running, it will eventually call `sfq_rehash`, which then calls `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`.

Within `qdisc_tree_reduce_backlog`, there's a loop that iterates upwards through the qdisc hierarchy by looking up the parent: `sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));`. The crucial part here is that `qdisc_lookup_rcu` performs an RCU lookup. If the parent qdisc has been destroyed and its entries removed from the qdisc tree, `qdisc_lookup_rcu` will return `NULL`.

This leads to the central question: can the parent qdisc be destroyed while a child qdisc is still "alive" and its timer handler is executing? The answer appears to be "yes." When a parent qdisc is destroyed, it iterates through its children and calls `qdisc_put` on each of them. However, `qdisc_put` on a child doesn't necessarily destroy it if the child's reference count is greater than one.

This brings me to the question of whether a child qdisc can *ever* have a reference count greater than one. I'm considering scenarios where another part of the kernel might be holding a direct reference. For instance, if a filter action, like those implemented by `tc_bpf`, `mirred`, or `skbedit`, were to hold a persistent reference to the qdisc. My current understanding is that `skbedit` doesn't hold such a qdisc reference.

What about `qdisc_graft`? If I graft a new qdisc onto a class, the *old* qdisc is returned, and then `qdisc_put` is called on it. If the old qdisc was returned, its reference count must have been one before the graft operation, meaning it's destroyed. So, `qdisc_graft` doesn't seem to be the source of a refcount > 1 for a child qdisc in this context.

The core of my concern is this: what if `qdisc_tree_reduce_backlog` is called (as part of the timer handler), and at that precise moment, the parent qdisc is in the process of being destroyed by a `qdisc_put` call on another CPU? If the parent is being destroyed, it might have already removed the child from the qdisc tree, but `qdisc_put` on the child might not have completed yet if its refcount is held elsewhere. If `qdisc_lookup_rcu` then fails to find the parent because it's gone, the loop breaks, potentially leading to unexpected behavior or state corruption. I need to re-examine the `qdisc_destroy` path to see how it manages child references and tree removal in relation to parent destruction.


420/4 2026/08/15 18:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_destroy]

Results:
map[SourceCode:1133:	void qdisc_destroy(struct Qdisc *qdisc)
1134:	{
1135:		if (qdisc->flags & TCQ_F_BUILTIN)
1136:			return;
1137:	
1138:		__qdisc_destroy(qdisc);
1139:	}
 SourceFile:net/sched/sch_generic.c]

421/4 2026/08/15 18:38 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 135534
							output: 39
							thoughts: 292
						

Thoughts:
**My Thought Process Regarding Queueing Discipline (qdisc) Management and Potential Race Conditions**

Okay, so I'm looking at the `qdisc_destroy` function, and it strikes me that it's really just a thin wrapper around `__qdisc_destroy`. That's a common pattern, nothing too surprising there.

However, my attention is immediately drawn to where `qdisc_destroy` itself is invoked – it's called from `qdisc_put`. This suggests a clear lifecycle: a qdisc is put, and eventually, it gets destroyed.

A key question pops into my head: Is there any scenario where `qdisc_hash_del` is called *without* subsequently destroying the qdisc it's removing from the hash table? My initial scan suggests no, which would imply that removal from the hash is always followed by destruction.

But then I start thinking about more complex operations. What happens if the *parent* qdisc itself is replaced? I recall that when a qdisc is replaced, the process typically involves `qdisc_create` to set up a new one, followed by `qdisc_replace` to perform the actual swap.

Crucially, I'm tracing the flow within `qdisc_replace`. It calls `qdisc_hash_del(old)` to remove the *old* qdisc from the hash, and *then* it calls `qdisc_put(old)`. This sequence confirms my earlier suspicion: the old qdisc is indeed removed from the hash and then subsequently destroyed.

Now, this is where a potential race condition starts to form in my mind. What if `sfq_perturbation` is running concurrently? If `sfq_perturbation` happens to observe the `sch->parent` pointer *after* the parent has been removed from the hash by `qdisc_replace`, but *before* the `qdisc_put` completes and the qdisc is truly gone, then `qdisc_lookup_rcu` called within `sfq_perturbation` might return `NULL`. This would be problematic because the parent qdisc would appear to be gone from the hash, leading to incorrect behavior.

However, a quick check on the locking mechanism used by `sfq_perturbation` immediately provides a counterargument. I see that `sfq_perturbation` takes the root qdisc lock:

```c
	root_lock = qdisc_lock(qdisc_root_sleeping(sch));
	spin_lock(root_lock);
```

This lock acquisition is a significant safeguard. So, my next critical question becomes: Does `qdisc_replace` also acquire this same root qdisc lock? If it does, then the concurrent execution I was worried about would be serialized, preventing the race.

My investigation into `qdisc_replace` reveals that it's not directly called from a context that already holds the root qdisc lock. Instead, `qdisc_replace` is invoked from `tc_modify_qdisc`. This necessitates a deeper look into the `tc_modify_qdisc` function to fully understand the locking hierarchy and whether the critical section protected by the root qdisc lock is maintained throughout the replacement operation.


422/4 2026/08/15 18:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:tc_modify_qdisc]

Results:
map[SourceCode:1796:	/*
1797:	 * Create/change qdisc.
1798:	 */
1799:	static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1800:				   struct netlink_ext_ack *extack)
1801:	{
1802:		struct net *net = sock_net(skb->sk);
1803:		struct nlattr *tca[TCA_MAX + 1];
1804:		struct net_device *dev;
1805:		struct tcmsg *tcm;
1806:		int err;
1807:	
1808:		err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,
1809:					     rtm_tca_policy, extack);
1810:		if (err < 0)
1811:			return err;
1812:	
1813:		request_qdisc_module(tca[TCA_KIND]);
1814:	
1815:		tcm = nlmsg_data(n);
1816:		dev = __dev_get_by_index(net, tcm->tcm_ifindex);
1817:		if (!dev)
1818:			return -ENODEV;
1819:	
1820:		netdev_lock_ops(dev);
1821:		err = __tc_modify_qdisc(skb, n, extack, dev, tca, tcm);
1822:		netdev_unlock_ops(dev);
1823:	
1824:		return err;
1825:	}
 SourceFile:net/sched/sch_api.c]

423/4 2026/08/15 18:38 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 136331
							output: 40
							thoughts: 13
						

Thoughts:
**My Thought Process**

Right, so my immediate instinct here is to dive into `__tc_modify_qdisc`. I need to understand exactly what's happening under the hood with the traffic control queueing discipline modification. This is where the real nitty-gritty of how network traffic is being shaped and managed will be revealed. I'm anticipating digging into its parameters, return values, and the underlying system calls it might be interacting with. My goal is to grasp the precise mechanisms by which qdiscs are being altered, which is crucial for diagnosing any performance bottlenecks or unexpected traffic behavior. I'm assuming this function is central to the traffic control subsystem, and a thorough understanding of it is paramount.


424/4 2026/08/15 18:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:__tc_modify_qdisc]

Results:
map[SourceCode:1585:	static int __tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1586:				     struct netlink_ext_ack *extack,
1587:				     struct net_device *dev,
1588:				     struct nlattr *tca[TCA_MAX + 1],
1589:				     struct tcmsg *tcm)
1590:	{
1591:		struct Qdisc *q = NULL;
1592:		struct Qdisc *p = NULL;
1593:		u32 clid;
1594:		int err;
1595:	
1596:		clid = tcm->tcm_parent;
1597:	
1598:		if (clid) {
1599:			if (clid != TC_H_ROOT) {
1600:				if (clid != TC_H_INGRESS) {
1601:					p = qdisc_lookup(dev, TC_H_MAJ(clid));
1602:					if (!p) {
1603:						NL_SET_ERR_MSG(extack, "Failed to find specified qdisc");
1604:						return -ENOENT;
1605:					}
1606:					if (p->flags & TCQ_F_INGRESS) {
1607:						NL_SET_ERR_MSG(extack,
1608:							       "Cannot add children to ingress/clsact qdisc");
1609:						return -EOPNOTSUPP;
1610:					}
1611:					q = qdisc_leaf(p, clid, extack);
1612:					if (IS_ERR(q))
1613:						return PTR_ERR(q);
1614:				} else if (dev_ingress_queue_create(dev)) {
1615:					q = rtnl_dereference(dev_ingress_queue(dev)->qdisc_sleeping);
1616:				}
1617:			} else {
1618:				q = rtnl_dereference(dev->qdisc);
1619:			}
1620:	
1621:			/* It may be default qdisc, ignore it */
1622:			if (q && q->handle == 0)
1623:				q = NULL;
1624:	
1625:			if (!q || !tcm->tcm_handle || q->handle != tcm->tcm_handle) {
1626:				if (tcm->tcm_handle) {
1627:					if (q && !(n->nlmsg_flags & NLM_F_REPLACE)) {
1628:						NL_SET_ERR_MSG(extack, "NLM_F_REPLACE needed to override");
1629:						return -EEXIST;
1630:					}
1631:					if (TC_H_MIN(tcm->tcm_handle)) {
1632:						NL_SET_ERR_MSG(extack, "Invalid minor handle");
1633:						return -EINVAL;
1634:					}
1635:					q = qdisc_lookup(dev, tcm->tcm_handle);
1636:					if (!q)
1637:						goto create_n_graft;
1638:					if (q->parent != tcm->tcm_parent) {
1639:						NL_SET_ERR_MSG(extack, "Cannot move an existing qdisc to a different parent");
1640:						return -EINVAL;
1641:					}
1642:					if (n->nlmsg_flags & NLM_F_EXCL) {
1643:						NL_SET_ERR_MSG(extack, "Exclusivity flag on, cannot override");
1644:						return -EEXIST;
1645:					}
1646:					if (tca[TCA_KIND] &&
1647:					    nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1648:						NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
1649:						return -EINVAL;
1650:					}
1651:					if (q->flags & TCQ_F_INGRESS) {
1652:						NL_SET_ERR_MSG(extack,
1653:							       "Cannot regraft ingress or clsact Qdiscs");
1654:						return -EINVAL;
1655:					}
1656:					if (q == p ||
1657:					    (p && check_loop(q, p, 0))) {
1658:						NL_SET_ERR_MSG(extack, "Qdisc parent/child loop detected");
1659:						return -ELOOP;
1660:					}
1661:					if (clid == TC_H_INGRESS) {
1662:						NL_SET_ERR_MSG(extack, "Ingress cannot graft directly");
1663:						return -EINVAL;
1664:					}
1665:					qdisc_refcount_inc(q);
1666:					goto graft;
1667:				} else {
1668:					if (!q)
1669:						goto create_n_graft;
1670:	
1671:					/* This magic test requires explanation.
1672:					 *
1673:					 *   We know, that some child q is already
1674:					 *   attached to this parent and have choice:
1675:					 *   1) change it or 2) create/graft new one.
1676:					 *   If the requested qdisc kind is different
1677:					 *   than the existing one, then we choose graft.
1678:					 *   If they are the same then this is "change"
1679:					 *   operation - just let it fallthrough..
1680:					 *
1681:					 *   1. We are allowed to create/graft only
1682:					 *   if the request is explicitly stating
1683:					 *   "please create if it doesn't exist".
1684:					 *
1685:					 *   2. If the request is to exclusive create
1686:					 *   then the qdisc tcm_handle is not expected
1687:					 *   to exist, so that we choose create/graft too.
1688:					 *
1689:					 *   3. The last case is when no flags are set.
1690:					 *   This will happen when for example tc
1691:					 *   utility issues a "change" command.
1692:					 *   Alas, it is sort of hole in API, we
1693:					 *   cannot decide what to do unambiguously.
1694:					 *   For now we select create/graft.
1695:					 */
1696:					if (tca[TCA_KIND] &&
1697:					    nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1698:						if (req_create_or_replace(n) ||
1699:						    req_create_exclusive(n))
1700:							goto create_n_graft;
1701:						else if (req_change(n))
1702:							goto create_n_graft2;
1703:					}
1704:				}
1705:			}
1706:		} else {
1707:			if (!tcm->tcm_handle) {
1708:				NL_SET_ERR_MSG(extack, "Handle cannot be zero");
1709:				return -EINVAL;
1710:			}
1711:			q = qdisc_lookup(dev, tcm->tcm_handle);
1712:		}
1713:	
1714:		/* Change qdisc parameters */
1715:		if (!q) {
1716:			NL_SET_ERR_MSG(extack, "Specified qdisc not found");
1717:			return -ENOENT;
1718:		}
1719:		if (n->nlmsg_flags & NLM_F_EXCL) {
1720:			NL_SET_ERR_MSG(extack, "Exclusivity flag on, cannot modify");
1721:			return -EEXIST;
1722:		}
1723:		if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1724:			NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
1725:			return -EINVAL;
1726:		}
1727:		err = qdisc_change(q, tca, extack);
1728:		if (err == 0)
1729:			qdisc_notify(sock_net(skb->sk), skb, n, clid, NULL, q, extack);
1730:		return err;
1731:	
1732:	create_n_graft:
1733:		if (!(n->nlmsg_flags & NLM_F_CREATE)) {
1734:			NL_SET_ERR_MSG(extack, "Qdisc not found. To create specify NLM_F_CREATE flag");
1735:			return -ENOENT;
1736:		}
1737:	create_n_graft2:
1738:		if (clid == TC_H_INGRESS) {
1739:			if (dev_ingress_queue(dev)) {
1740:				q = qdisc_create(dev, dev_ingress_queue(dev),
1741:						 tcm->tcm_parent, tcm->tcm_parent,
1742:						 tca, &err, extack);
1743:			} else {
1744:				NL_SET_ERR_MSG(extack, "Cannot find ingress queue for specified device");
1745:				err = -ENOENT;
1746:			}
1747:		} else {
1748:			struct netdev_queue *dev_queue;
1749:	
1750:			if (p && p->ops->cl_ops && p->ops->cl_ops->select_queue)
1751:				dev_queue = p->ops->cl_ops->select_queue(p, tcm);
1752:			else if (p)
1753:				dev_queue = p->dev_queue;
1754:			else
1755:				dev_queue = netdev_get_tx_queue(dev, 0);
1756:	
1757:			q = qdisc_create(dev, dev_queue,
1758:					 tcm->tcm_parent, tcm->tcm_handle,
1759:					 tca, &err, extack);
1760:		}
1761:		if (!q)
1762:			return err;
1763:	
1764:	graft:
1765:		err = qdisc_graft(dev, p, skb, n, clid, q, NULL, extack);
1766:		if (err) {
1767:			if (q)
1768:				qdisc_put(q);
1769:			return err;
1770:		}
1771:	
1772:		return 0;
1773:	}
 SourceFile:net/sched/sch_api.c]

425/4 2026/08/15 18:38 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 139447
							output: 38
							thoughts: 457
						

Thoughts:
**My Thought Process Unraveling `qdisc_graft` and its Interactions with HTB**

Okay, so I'm looking at `qdisc_graft` and trying to understand exactly what it does and how it interacts with the HTB (Hierarchical Token Bucket) queuing discipline. My initial thought was that `qdisc_graft` directly calls `qdisc_replace`. However, upon closer inspection of the kernel source, I see that's not the *immediate* next step.

Instead, `qdisc_graft` actually invokes a discipline-specific `graft` operation. This is defined via `p->ops->cl_ops->graft(p, clid, new, &old, extack)`. This makes sense; it's an abstraction layer allowing each queuing discipline to handle the grafting of a new child queue in its own way.

Now, I need to understand how HTB implements this `graft` operation. I found the `htb_graft` function. Looking at its logic, it appears that `htb_graft`'s primary role is to manage the replacement of a child queue within an HTB class. A crucial check is `if (cl->level) return -EINVAL;`. This tells me that grafting is only allowed for leaf classes (level 0) in HTB, which is a fundamental characteristic of its hierarchical structure. If a `new` qdisc isn't provided, it seems to create a default one (a `pfifo_qdisc_ops` in this case), which is a sensible fallback.

The core of `htb_graft`'s action is this line: `*old = qdisc_replace(sch, new, &cl->leaf.q);`. This is where `qdisc_replace` finally comes into play. So, `qdisc_graft` calls the discipline's `graft` function, and *that* function calls `qdisc_replace`.

Let's delve into `qdisc_replace`. It takes the parent `sch` (the root qdisc), the `new` qdisc to be installed, and a pointer to the `old` qdisc's location (`&cl->leaf.q` in the HTB context). The function acquires a lock (`sch_tree_lock`), retrieves the current `old` qdisc, sets the pointer to the `new` qdisc, and crucially, if there *was* an `old` qdisc, it calls `qdisc_tree_flush_backlog(old)`. This is important because it ensures any packets queued in the old qdisc are handled before it's truly released. Finally, it unlocks and returns the `old` qdisc.

Now, here's where I had a slight confusion that I've now corrected. My initial thought was that `qdisc_replace` might implicitly handle the cleanup of the old qdisc, perhaps by calling `qdisc_hash_del` or `qdisc_put`. However, the source code for `qdisc_replace` *explicitly does not do this*. It simply replaces the pointer and returns the old qdisc.

So, where does the actual cleanup of the `old` qdisc happen? The `qdisc_replace` function returns the `old` qdisc. Following the control flow *back up* from `htb_graft`, it's the calling function, `qdisc_graft`, that ultimately receives this `old` qdisc. And indeed, I've confirmed that `qdisc_graft` *does* call `qdisc_put(old)` after it has received the old qdisc from `qdisc_replace` (via the `htb_graft` intermediary). This `qdisc_put` is the mechanism that eventually reclaims the resources of the old qdisc, including decrementing its reference count and freeing it if the count reaches zero. This is a critical piece of the resource management puzzle.


426/4 2026/08/15 18:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_graft]

Results:
map[SourceCode:1091:	static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
1092:			       struct sk_buff *skb, struct nlmsghdr *n, u32 classid,
1093:			       struct Qdisc *new, struct Qdisc *old,
1094:			       struct netlink_ext_ack *extack)
1095:	{
1096:		struct Qdisc *q = old;
1097:		struct net *net = dev_net(dev);
1098:	
1099:		if (parent == NULL) {
1100:			unsigned int i, num_q, ingress;
1101:			struct netdev_queue *dev_queue;
1102:	
1103:			ingress = 0;
1104:			num_q = dev->num_tx_queues;
1105:			if ((q && q->flags & TCQ_F_INGRESS) ||
1106:			    (new && new->flags & TCQ_F_INGRESS)) {
1107:				ingress = 1;
1108:				dev_queue = dev_ingress_queue(dev);
1109:				if (!dev_queue) {
1110:					NL_SET_ERR_MSG(extack, "Device does not have an ingress queue");
1111:					return -ENOENT;
1112:				}
1113:	
1114:				q = rtnl_dereference(dev_queue->qdisc_sleeping);
1115:	
1116:				/* This is the counterpart of that qdisc_refcount_inc_nz() call in
1117:				 * __tcf_qdisc_find() for filter requests.
1118:				 */
1119:				if (!qdisc_refcount_dec_if_one(q)) {
1120:					NL_SET_ERR_MSG(extack,
1121:						       "Current ingress or clsact Qdisc has ongoing filter requests");
1122:					return -EBUSY;
1123:				}
1124:			}
1125:	
1126:			if (dev->flags & IFF_UP)
1127:				dev_deactivate(dev, false);
1128:	
1129:			qdisc_offload_graft_root(dev, new, old, extack);
1130:	
1131:			if (new && new->ops->attach && !ingress)
1132:				goto skip;
1133:	
1134:			if (!ingress) {
1135:				for (i = 0; i < num_q; i++) {
1136:					dev_queue = netdev_get_tx_queue(dev, i);
1137:					old = dev_graft_qdisc(dev_queue, new);
1138:	
1139:					if (new && i > 0)
1140:						qdisc_refcount_inc(new);
1141:					qdisc_put(old);
1142:				}
1143:			} else {
1144:				old = dev_graft_qdisc(dev_queue, NULL);
1145:	
1146:				/* {ingress,clsact}_destroy() @old before grafting @new to avoid
1147:				 * unprotected concurrent accesses to net_device::miniq_{in,e}gress
1148:				 * pointer(s) in mini_qdisc_pair_swap().
1149:				 */
1150:				qdisc_notify(net, skb, n, classid, old, new, extack);
1151:				qdisc_destroy(old);
1152:	
1153:				dev_graft_qdisc(dev_queue, new);
1154:			}
1155:	
1156:	skip:
1157:			if (!ingress) {
1158:				old = rtnl_dereference(dev->qdisc);
1159:				if (new && !new->ops->attach)
1160:					qdisc_refcount_inc(new);
1161:				rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
1162:	
1163:				notify_and_destroy(net, skb, n, classid, old, new, extack);
1164:	
1165:				if (new && new->ops->attach)
1166:					new->ops->attach(new);
1167:			}
1168:	
1169:			if (dev->flags & IFF_UP)
1170:				dev_activate(dev);
1171:		} else {
1172:			const struct Qdisc_class_ops *cops = parent->ops->cl_ops;
1173:			unsigned long cl;
1174:			int err;
1175:	
1176:			/* Only support running class lockless if parent is lockless */
1177:			if (new && (new->flags & TCQ_F_NOLOCK) && !(parent->flags & TCQ_F_NOLOCK))
1178:				qdisc_clear_nolock(new);
1179:	
1180:			if (!cops || !cops->graft)
1181:				return -EOPNOTSUPP;
1182:	
1183:			cl = cops->find(parent, classid);
1184:			if (!cl) {
1185:				NL_SET_ERR_MSG(extack, "Specified class not found");
1186:				return -ENOENT;
1187:			}
1188:	
1189:			if (new && new->ops == &noqueue_qdisc_ops) {
1190:				NL_SET_ERR_MSG(extack, "Cannot assign noqueue to a class");
1191:				return -EINVAL;
1192:			}
1193:	
1194:			if (new &&
1195:			    !(parent->flags & TCQ_F_MQROOT) &&
1196:			    rcu_access_pointer(new->stab)) {
1197:				NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
1198:				return -EINVAL;
1199:			}
1200:			err = cops->graft(parent, cl, new, &old, extack);
1201:			if (err)
1202:				return err;
1203:			notify_and_destroy(net, skb, n, classid, old, new, extack);
1204:		}
1205:		return 0;
1206:	}
 SourceFile:net/sched/sch_api.c]

427/4 2026/08/15 18:38 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 141759
							output: 38
							thoughts: 1859
						

Thoughts:
**My Thoughts on `notify_and_destroy` and Qdisc Lifecycle Management**

Okay, so I'm digging into how `notify_and_destroy` operates, and it calls `qdisc_put(old)`. This immediately tells me that when I replace a child qdisc, the old one gets `put`. My immediate follow-up thought is: "If the old child qdisc is `put`, and its reference count drops to zero, it should be destroyed, right?"

But then a crucial question pops into my head: "What if the old child qdisc *isn't* destroyed because someone is still holding a reference to it?" This is the core of my concern. So, I start tracing who could possibly be holding a reference to a qdisc.

My investigation points to `qdisc_refcount_inc`. I see it's called in `tc_modify_qdisc` specifically when we're "grafting" an existing qdisc. The code snippet here is telling:

```c
					if (q == p ||
					    (p && check_loop(q, p, 0))) {
						NL_SET_ERR_MSG(extack, "Qdisc parent/child loop detected");
						return -ELOOP;
					}
					if (clid == TC_H_INGRESS) {
						NL_SET_ERR_MSG(extack, "Ingress cannot graft directly");
						return -EINVAL;
					}
					qdisc_refcount_inc(q);
					goto graft;
```

This confirms my suspicion: if I graft an existing qdisc to a new parent, its reference count is incremented. This is a key point.

Now, I'm thinking about the implications of grafting. If I graft an existing qdisc to a *new* parent, what happens to its *old* parent? My initial thought is that the old parent would still be pointing to it. But then I remember a critical constraint: `"Cannot move an existing qdisc to a different parent"`. The code explicitly checks `if (q->parent != tcm->tcm_parent)`.

This check is significant. It implies I can only graft to the *same* parent. And since `tcm->tcm_parent` represents the class ID, this means I can't even move it to a different class under the same parent. So, why do we allow grafting an existing qdisc at all? Is it just to replace the current child of a class with an *existing* qdisc that's already the child of the *same* class? That seems… redundant, and frankly, nonsensical.

Let's revisit `tcm->tcm_parent`. If `q->parent == tcm->tcm_parent`, it means the qdisc is already attached to this exact class. Grafting it again just replaces it with itself. This leads me to wonder: what if `q` was created but never actually grafted? When `qdisc_create` is called, `q->parent` is set to `tcm->tcm_parent`. But if it wasn't grafted, wouldn't it be undetectable by `qdisc_lookup` because it's not in the hash? No, `qdisc_create` calls `qdisc_hash_add(q)`, so it *is* in the hash. This means it's an "orphan" qdisc. Can we even have an orphan qdisc? The logic suggests yes, if `tc_modify_qdisc` creates it but `qdisc_graft` fails, it's then destroyed.

Consider this scenario: `tc qdisc add dev eth0 handle 1: root htb`, then `tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbit`, and finally `tc qdisc add dev eth0 parent 1:1 handle 10: sfq`. What happens if I try to execute `tc qdisc add dev eth0 parent 1:1 handle 10: sfq` again? The system will find the existing qdisc, see that `q->parent == tcm->tcm_parent`, and effectively graft it onto itself.

Now, if `qdisc_refcount_inc(q)` is called, and then `qdisc_graft` replaces the old qdisc (which is `q` itself) with `q`, `old` becomes `q`. Then `notify_and_destroy` calls `qdisc_put(old)`, which drops the reference count back to 1. So, the reference count remains at 1.

This brings me to another critical question: are there *any other ways* to hold a reference to a qdisc besides `qdisc_refcount_inc`? I check `tc_get_qdisc`, but it just looks up and dumps the qdisc; it doesn't hold a reference. `qdisc_lookup` and `qdisc_lookup_rcu` also don't take references. `dev_graft_qdisc` simply assigns the pointer and returns the old qdisc, and the caller is responsible for calling `qdisc_put(old)`. So, `qdisc_put` is indeed the *only* mechanism for dropping a reference count.

This makes me focus even more intently on who increments the reference count. I've already seen `tc_modify_qdisc`. I also see `qdisc_graft` calling `qdisc_refcount_inc(new)` for `i > 0` in the multiqueue case. This means that for multiqueue, a qdisc *can* be shared across multiple TX queues. However, something like `sfq` isn't shared across TX queues.

Let's revisit `tc_modify_qdisc`. It can increment the reference count if I do something like `tc qdisc add dev eth0 parent 1:1 handle 10: sfq`. But, as I established, I can't use `tc_modify_qdisc` to graft an existing qdisc to a *different* class due to the `q->parent != tcm->tcm_parent` check.

However, I notice a subtle point: `tcm->tcm_parent` can be `TC_H_ROOT` for root qdiscs. Can I graft a root qdisc to a class? If `tcm->tcm_parent` is a class, and `q->parent` is `TC_H_ROOT`, they don't match. What if `q->parent` is `TC_H_UNSPEC`? When does that happen? The ingress qdisc has `TC_H_INGRESS`. It really seems like a qdisc is strictly bound to its parent.

This leads me back to a warning I saw: `WARN_ON_ONCE(parentid != TC_H_ROOT);`. This implies `parentid` is *not* `TC_H_ROOT`, and importantly, `sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));` returned `NULL`. This means the parent qdisc (whose handle is `TC_H_MAJ(parentid)`) is *not* in the qdisc hash.

So, the crucial question becomes: Why would the parent qdisc not be in the hash, yet the child qdisc's timer (in this case, `sfq_perturbation`) is still trying to execute? My hypothesis is that the parent qdisc has already been destroyed, and in the process, it removed itself from the hash. But the child qdisc's timer hasn't been stopped yet.

But wait, if the parent qdisc is destroyed, doesn't it call `qdisc_destroy` on its children? And `qdisc_destroy` calls `__qdisc_destroy`, which in turn calls `ops->destroy`. For `sfq`, `ops->destroy` is `sfq_destroy`, which calls `timer_delete_sync(&q->perturb_timer)`. `timer_delete_sync` is supposed to wait for the timer handler to finish if it's running, or cancel it if it's scheduled. However, what if the timer handler *is* running? `timer_delete_sync` will block until it finishes. While the handler is running, it calls `sfq_rehash`, which then calls `qdisc_tree_reduce_backlog`. And `qdisc_tree_reduce_backlog` tries to look up the parent.

But here's the problem: the parent has *already* been removed from the hash! This happens because `qdisc_destroy` on the parent calls `qdisc_hash_del(parent)` *before* it destroys its children. I need to re-examine `__qdisc_destroy` very carefully to confirm this sequence. This is where the race condition or unexpected behavior must lie.


428/4 2026/08/15 18:39 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

429/4 2026/08/15 18:39 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 144038
							output: 36
							thoughts: 79
						

Thoughts:
**A Deep Dive into `__qdisc_destroy` and its PARENTal Implications**

My current focus is on unraveling the intricacies of `__qdisc_destroy`. I've traced its execution flow and confirmed that at line 1112, it diligently invokes `qdisc_hash_del(qdisc)`. This is a crucial step, effectively decoupling the queueing discipline from any hashing mechanisms it might be registered with.

Following this, and this is where my interest truly deepens, at line 1122, `__qdisc_destroy` proceeds to call `ops->destroy(qdisc)`. This is the more generalized destruction call, relying on the specific operations structure associated with the `qdisc` in question.

My critical realization, and the crux of my current thought process, is what happens when the `qdisc` being destroyed is actually the *PARENT* of other queueing disciplines. In such a scenario, specifically when dealing with something like HTB (Hierarchical Token Bucket), the `ops->destroy` function that gets invoked is none other than `htb_destroy`. This means that the destruction of a parent qdisc, like HTB, is not just a simple cleanup operation; it triggers a specific, hierarchical destruction process tailored to its unique structure. This is a significant point because it implies a cascaded effect, where the dismantling of a parent has profound implications for its children.


430/4 2026/08/15 18:39 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_destroy]

Results:
map[SourceCode:1618:	static void htb_destroy(struct Qdisc *sch)
1619:	{
1620:		struct net_device *dev = qdisc_dev(sch);
1621:		struct tc_htb_qopt_offload offload_opt;
1622:		struct htb_sched *q = qdisc_priv(sch);
1623:		struct hlist_node *next;
1624:		bool nonempty, changed;
1625:		struct htb_class *cl;
1626:		unsigned int i;
1627:	
1628:		cancel_work_sync(&q->work);
1629:		qdisc_watchdog_cancel(&q->watchdog);
1630:		/* This line used to be after htb_destroy_class call below
1631:		 * and surprisingly it worked in 2.4. But it must precede it
1632:		 * because filter need its target class alive to be able to call
1633:		 * unbind_filter on it (without Oops).
1634:		 */
1635:		tcf_block_put(q->block);
1636:	
1637:		for (i = 0; i < q->clhash.hashsize; i++) {
1638:			hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
1639:				tcf_block_put(cl->block);
1640:				cl->block = NULL;
1641:			}
1642:		}
1643:	
1644:		do {
1645:			nonempty = false;
1646:			changed = false;
1647:			for (i = 0; i < q->clhash.hashsize; i++) {
1648:				hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
1649:							  common.hnode) {
1650:					bool last_child;
1651:	
1652:					if (!q->offload) {
1653:						htb_destroy_class(sch, cl);
1654:						continue;
1655:					}
1656:	
1657:					nonempty = true;
1658:	
1659:					if (cl->level)
1660:						continue;
1661:	
1662:					changed = true;
1663:	
1664:					last_child = htb_parent_last_child(cl);
1665:					htb_destroy_class_offload(sch, cl, last_child,
1666:								  true, NULL);
1667:					qdisc_class_hash_remove(&q->clhash,
1668:								&cl->common);
1669:					if (cl->parent)
1670:						cl->parent->children--;
1671:					if (last_child)
1672:						htb_parent_to_leaf(sch, cl, NULL);
1673:					htb_destroy_class(sch, cl);
1674:				}
1675:			}
1676:		} while (changed);
1677:		WARN_ON(nonempty);
1678:	
1679:		qdisc_class_hash_destroy(&q->clhash);
1680:		__qdisc_reset_queue(&q->direct_queue);
1681:	
1682:		if (q->offload) {
1683:			offload_opt = (struct tc_htb_qopt_offload) {
1684:				.command = TC_HTB_DESTROY,
1685:			};
1686:			htb_offload(dev, &offload_opt);
1687:		}
1688:	
1689:		if (!q->direct_qdiscs)
1690:			return;
1691:		for (i = 0; i < q->num_direct_qdiscs && q->direct_qdiscs[i]; i++)
1692:			qdisc_put(q->direct_qdiscs[i]);
1693:		kfree(q->direct_qdiscs);
1694:	}
 SourceFile:net/sched/sch_htb.c]

431/4 2026/08/15 18:39 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 145310
							output: 41
							thoughts: 1763
						

Thoughts:
**The Race Condition Unveiled: A Deep Dive into HTB and SFQ Interplay**

I've been analyzing a perplexing race condition involving the HTB (Hierarchical Token Bucket) and SFQ (Stochastic Fairness Queueing) qdiscs, and I believe I've pieced together the entire puzzle. It all boils down to the timing of operations during destruction and timer callbacks.

Here's how I see it unfolding:

The `htb_destroy` function initiates the cleanup process. It iterates through each of its associated classes, calling `htb_destroy_class` for each. This, in turn, invokes `qdisc_put` on the child qdisc, which in this scenario is typically an SFQ instance. The `qdisc_put` function then calls `__qdisc_destroy` on that child qdisc.

Now, when `__qdisc_destroy` is called on the SFQ qdisc, it eventually leads to a call to `sfq_destroy`. Crucially, `sfq_destroy` attempts to synchronize and delete its perturbation timer using `timer_delete_sync`.

Here's where the problem arises, and it's a classic example of a race. Imagine this sequence of events across different CPUs:

1.  **CPU 0:** Starts the destruction process. `__qdisc_destroy` is called on the HTB qdisc.
2.  **CPU 0:** As part of this destruction, `qdisc_hash_del(htb)` is executed. This is a critical step: **the HTB qdisc is removed from the kernel's qdisc hash table**.
3.  **CPU 1:** At this precise moment, the SFQ perturbation timer fires. This timer is associated with an SFQ qdisc that was a child of the HTB qdisc we're trying to destroy.
4.  **CPU 1:** The timer callback begins its execution. It acquires an RCU read lock using `rcu_read_lock()`.
5.  **CPU 1:** It then attempts to get a lock on the parent qdisc's root. This involves calling `qdisc_lock(qdisc_root_sleeping(sch))` and acquiring the spinlock.
6.  **CPU 1:** The timer callback proceeds to call `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`.
7.  **CPU 1:** `qdisc_tree_reduce_backlog` needs to find the parent qdisc to perform its work. It does this by calling `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`.
8.  **CPU 1:** This is the point of failure. Because the HTB qdisc was removed from the hash in step 2, `qdisc_lookup_rcu` returns `NULL` – it can't find the parent qdisc!
9.  **CPU 1:** The kernel detects this unexpected `NULL` return and triggers a `WARN_ON_ONCE(parentid != TC_H_ROOT);`. This is the warning I was seeing.
10. **CPU 0:** Meanwhile, back on CPU 0, the `htb_destroy` function continues its path. It reaches the point where it calls `qdisc_put` on the SFQ qdisc, leading to `__qdisc_destroy(sfq)`, then `sfq_destroy`, and finally `timer_delete_sync(&q->perturb_timer)`.
11. **CPU 0:** The `timer_delete_sync` call is designed to block until the timer callback on CPU 1 has finished. However, because CPU 1 is stuck trying to find a parent qdisc that no longer exists in the hash, it never finishes. Consequently, `timer_delete_sync` blocks indefinitely, leading to a timeout and the reproducer failing.

This sequence perfectly explains the observed warning and the reproducer's timeout. The root cause is clear: `qdisc_hash_del` is executed on the parent HTB qdisc *before* its child's timer (`sfq_perturbation`) has been properly stopped. This allows the child's timer to fire and attempt to look up its parent in the hash table, only to find it gone.

Now, regarding the reproducer timing out and not showing the warning, I've been digging into that as well. The bug report indicated `IsProbe: false` and `Reproduced: false`, with no warning in the console output. This means the reproducer *failed* to trigger the warning. The question is, why?

I examined the `strace` output. The reproducer appears to be creating a netlink socket and sending a series of `tc` commands to set up HTB and SFQ qdiscs, followed by sending a lot of packets using an `AF_PACKET` socket.

My initial thought was that it was trying to force the race by destroying the HTB qdisc. However, as I reviewed the `strace` snippet, I couldn't find any explicit `RTM_DELQDISC` (netlink message type `0x25`) calls that would initiate the destruction of the HTB qdisc. The snippet shows `RTM_NEWQDISC` (for creating HTB) and `RTM_NEWTCLASS` (for creating HTB classes), followed by packet sends.

If the HTB qdisc isn't explicitly deleted via a `tc qdisc del` command, how is it supposed to be destroyed? I considered the possibility of it being destroyed implicitly when the process exits, especially since the reproducer uses `unshare` to run in a new network namespace. When a network namespace is destroyed, all its associated qdiscs are cleaned up.

However, the reproducer also has a loop structure (`[+] Starting race loop...` and `[+] Done.`), and it's actively sending packets. If the qdisc isn't being deleted during this loop, the race condition – which hinges on the destruction of the HTB qdisc *while* the SFQ timer is active – simply can't occur.

This leads me to a crucial re-evaluation: perhaps the bug isn't *solely* tied to the `qdisc_destroy` path. Is there another scenario where `qdisc_lookup_rcu` could return `NULL` when it shouldn't?

Let's consider `sfq_rehash` and `qdisc_tree_reduce_backlog`. When called with the SFQ qdisc (`sch`), `sch->parent` holds the handle of the parent HTB class (e.g., `1:1`). The `TC_H_MAJ(parentid)` then extracts the major part of this handle, which would correspond to the parent HTB qdisc's handle (e.g., `1:0`). `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))` is then used to find this parent HTB qdisc.

When would `qdisc_lookup_rcu` return `NULL` if the parent qdisc *wasn't* destroyed?

1.  The parent qdisc was never added to the hash in the first place.
2.  The parent qdisc is a special built-in qdisc (like `pfifo_fast`) that isn't part of the hash.

However, I recall that `qdisc_create` generally calls `qdisc_hash_add(q)` for most qdiscs, except for some defaults like `pfifo_fast`. This makes these possibilities less likely unless there's an edge case I'm missing.

My current focus is on understanding *why* the reproducer isn't triggering the warning. If it's not actually destroying the HTB qdisc during its race loop, then the described race condition involving `qdisc_hash_del` cannot be the trigger for the *failed* reproducer. This implies either the reproducer is flawed in its approach to trigger the destruction, or there's a more subtle way the parent qdisc can become inaccessible from the SFQ timer's perspective.


432/4 2026/08/15 18:39 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_create_dflt]

Results:
map[SourceCode:1041:	struct Qdisc *qdisc_create_dflt(struct netdev_queue *dev_queue,
1042:					const struct Qdisc_ops *ops,
1043:					unsigned int parentid,
1044:					struct netlink_ext_ack *extack)
1045:	{
1046:		struct Qdisc *sch;
1047:	
1048:		if (!bpf_try_module_get(ops, ops->owner)) {
1049:			NL_SET_ERR_MSG(extack, "Failed to increase module reference counter");
1050:			return NULL;
1051:		}
1052:	
1053:		sch = qdisc_alloc(dev_queue, ops, extack);
1054:		if (IS_ERR(sch)) {
1055:			bpf_module_put(ops, ops->owner);
1056:			return NULL;
1057:		}
1058:		sch->parent = parentid;
1059:	
1060:		if (!ops->init || ops->init(sch, NULL, extack) == 0) {
1061:			trace_qdisc_create(ops, dev_queue->dev, parentid);
1062:			return sch;
1063:		}
1064:	
1065:		qdisc_put(sch);
1066:		return NULL;
1067:	}
 SourceFile:net/sched/sch_generic.c]

433/4 2026/08/15 18:39 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 147515
							output: 56
							thoughts: 64
						

Thoughts:
**A Deep Dive into Queueing Discipline Hashing**

Okay, I've just had a rather significant realization about how queueing disciplines (qdiscs) are managed within the system. I was digging into the `qdisc_create_dflt` function, which, as the name suggests, is responsible for creating default queueing disciplines. My initial understanding was that *any* qdisc creation would involve adding it to the central hash table for efficient lookup.

However, upon closer inspection, I've discovered that `qdisc_create_dflt` **does not** call `qdisc_hash_add`. This is a crucial detail I seem to have overlooked or perhaps previously misunderstood.

This immediately raises a very important question in my mind: **If a qdisc is created using `qdisc_create_dflt`, does that mean it's not being added to the qdisc hash table at all?** This is a significant implication, as it would mean these "default" qdiscs are not discoverable through the standard hashing mechanism.

To get to the bottom of this, my next logical step is to meticulously review all the call sites for `qdisc_hash_add`. I need to understand precisely *which* qdisc creation paths *do* involve hashing, and by contrast, which ones, like `qdisc_create_dflt`, appear to bypass it. This will help me fully grasp the lifecycle and accessibility of different types of qdiscs within the system and ensure my understanding of the qdisc management subsystem is accurate and complete.


434/4 2026/08/15 18:39 tool codesearch-find-references
0m Args:
map[ContextFile:net/sched/sch_generic.c IncludeSnippetLines:2 Name:qdisc_hash_add SourceTreePrefix:net/sched/]

Results:
map[References:[map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:__red_change SourceFile:net/sched/sch_red.c SourceLine:281 SourceSnippet: 279:	
 280:			/* child is fifo, no need to check for noop_qdisc */
 281:			qdisc_hash_add(child, true);
 282:		}
 283:	
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:attach_default_qdiscs SourceFile:net/sched/sch_generic.c SourceLine:1265 SourceSnippet:1263:	#ifdef CONFIG_NET_SCHED
1264:		if (qdisc != &noop_qdisc)
1265:			qdisc_hash_add(qdisc, false);
1266:	#endif
1267:	}
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:cbs_init SourceFile:net/sched/sch_cbs.c SourceLine:435 SourceSnippet: 433:		spin_unlock(&cbs_list_lock);
 434:	
 435:		qdisc_hash_add(q->qdisc, false);
 436:	
 437:		q->queue = sch->dev_queue - netdev_get_tx_queue(dev, 0);
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:drr_change_class SourceFile:net/sched/sch_drr.c SourceLine:120 SourceSnippet: 118:			cl->qdisc = &noop_qdisc;
 119:		else
 120:			qdisc_hash_add(cl->qdisc, true);
 121:	
 122:		if (tca[TCA_RATE]) {
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:ets_class_graft SourceFile:net/sched/sch_ets.c SourceLine:268 SourceSnippet: 266:				new = &noop_qdisc;
 267:			else
 268:				qdisc_hash_add(new, true);
 269:		}
 270:	
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:ets_qdisc_change SourceFile:net/sched/sch_ets.c SourceLine:682 SourceSnippet: 680:			q->classes[i].qdisc = queues[i];
 681:			if (q->classes[i].qdisc != &noop_qdisc)
 682:				qdisc_hash_add(q->classes[i].qdisc, true);
 683:		}
 684:	
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:hfsc_change_class SourceFile:net/sched/sch_hfsc.c SourceLine:1065 SourceSnippet:1063:			cl->qdisc = &noop_qdisc;
1064:		else
1065:			qdisc_hash_add(cl->qdisc, true);
1066:		INIT_LIST_HEAD(&cl->children);
1067:		cl->vt_tree = RB_ROOT;
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:hfsc_init_qdisc SourceFile:net/sched/sch_hfsc.c SourceLine:1425 SourceSnippet:1423:			q->root.qdisc = &noop_qdisc;
1424:		else
1425:			qdisc_hash_add(q->root.qdisc, true);
1426:		INIT_LIST_HEAD(&q->root.children);
1427:		q->root.vt_tree = RB_ROOT;
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:htb_attach_offload SourceFile:net/sched/sch_htb.c SourceLine:1168 SourceSnippet:1166:			old = dev_graft_qdisc(qdisc->dev_queue, qdisc);
1167:			qdisc_put(old);
1168:			qdisc_hash_add(qdisc, false);
1169:		}
1170:		for (ntx = q->num_direct_qdiscs; ntx < dev->num_tx_queues; ntx++) {
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:htb_change_class SourceFile:net/sched/sch_htb.c SourceLine:1986 SourceSnippet:1984:				parent->children++;
1985:			if (cl->leaf.q != &noop_qdisc)
1986:				qdisc_hash_add(cl->leaf.q, true);
1987:		} else {
1988:			if (tca[TCA_RATE]) {
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:mq_attach SourceFile:net/sched/sch_mq.c SourceLine:134 SourceSnippet: 132:	#ifdef CONFIG_NET_SCHED
 133:			if (ntx < dev->real_num_tx_queues)
 134:				qdisc_hash_add(qdisc, false);
 135:	#endif
 136:	
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:mq_change_real_num_tx SourceFile:net/sched/sch_generic.c SourceLine:1462 SourceSnippet:1460:			qdisc = rtnl_dereference(netdev_get_tx_queue(dev, i)->qdisc_sleeping);
1461:			if (qdisc != &noop_qdisc && !qdisc->handle)
1462:				qdisc_hash_add(qdisc, false);
1463:		}
1464:	#endif
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:mqprio_attach SourceFile:net/sched/sch_mqprio.c SourceLine:445 SourceSnippet: 443:				qdisc_put(old);
 444:			if (ntx < dev->real_num_tx_queues)
 445:				qdisc_hash_add(qdisc, false);
 446:		}
 447:		kfree(priv->qdiscs);
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:multiq_tune SourceFile:net/sched/sch_multiq.c SourceLine:223 SourceSnippet: 221:					q->queues[i] = child;
 222:					if (child != &noop_qdisc)
 223:						qdisc_hash_add(child, true);
 224:	
 225:					if (old != &noop_qdisc)
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:prio_graft SourceFile:net/sched/sch_prio.c SourceLine:299 SourceSnippet: 297:				new = &noop_qdisc;
 298:			else
 299:				qdisc_hash_add(new, true);
 300:		}
 301:	
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:prio_tune SourceFile:net/sched/sch_prio.c SourceLine:219 SourceSnippet: 217:			q->queues[i] = queues[i];
 218:			if (q->queues[i] != &noop_qdisc)
 219:				qdisc_hash_add(q->queues[i], true);
 220:		}
 221:	
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:qdisc_create SourceFile:net/sched/sch_api.c SourceLine:1347 SourceSnippet:1345:		}
1346:	
1347:		qdisc_hash_add(sch, false);
1348:		trace_qdisc_create(ops, dev, parent);
1349:	
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:qfq_change_class SourceFile:net/sched/sch_qfq.c SourceLine:504 SourceSnippet: 502:	
 503:		if (cl->qdisc != &noop_qdisc)
 504:			qdisc_hash_add(cl->qdisc, true);
 505:	
 506:	set_change_agg:
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:sfb_change SourceFile:net/sched/sch_sfb.c SourceLine:533 SourceSnippet: 531:	
 532:		if (child != &noop_qdisc)
 533:			qdisc_hash_add(child, true);
 534:		sch_tree_lock(sch);
 535:	
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:taprio_init SourceFile:net/sched/sch_taprio.c SourceLine:2118 SourceSnippet:2116:	
2117:			if (i < dev->real_num_tx_queues)
2118:				qdisc_hash_add(qdisc, false);
2119:	
2120:			q->qdiscs[i] = qdisc;
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:tbf_change SourceFile:net/sched/sch_tbf.c SourceLine:456 SourceSnippet: 454:	
 455:			/* child is fifo, no need to check for noop_qdisc */
 456:			qdisc_hash_add(child, true);
 457:		}
 458:	
] map[ReferenceKind:takes-address-of ReferencingEntityKind:global_variable ReferencingEntityName:__UNIQUE_ID_addressable_qdisc_hash_add_1546 SourceFile:net/sched/sch_api.c SourceLine:291 SourceSnippet: 291:	EXPORT_SYMBOL(qdisc_hash_add);
] map[ReferenceKind:takes-address-of ReferencingEntityKind:global_variable ReferencingEntityName:__gendwarfksyms_ptr_qdisc_hash_add SourceFile:net/sched/sch_api.c SourceLine:291 SourceSnippet: 291:	EXPORT_SYMBOL(qdisc_hash_add);
] map[ReferenceKind:takes-address-of ReferencingEntityKind:global_variable ReferencingEntityName:__gendwarfksyms_ptr_qdisc_hash_add SourceFile:net/sched/sch_api.c SourceLine:291 SourceSnippet: 291:	EXPORT_SYMBOL(qdisc_hash_add);
]] TruncatedOutput:false]

435/4 2026/08/15 18:39 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 150178
							output: 39
							thoughts: 433
						

Thoughts:
**My Thought Process Regarding `htb_graft` and Qdisc Hashing**

I've been delving into the mechanics of `htb_graft` and how it interacts with the qdisc hashing mechanism, and a few key points have emerged that require careful consideration.

Initially, my understanding was that `htb_graft` itself directly calls `qdisc_replace`. However, upon closer inspection, I realized that `htb_graft` *does not* call `qdisc_hash_add` directly. This distinction is crucial.

I then traced the path of qdisc creation through other functions. I observed that `tc_modify_qdisc` *does* call `qdisc_create`, and `qdisc_create`, in turn, *does* call `qdisc_hash_add(sch, false)`. This confirms my expectation that when a qdisc is explicitly created using a command like `tc qdisc add`, it gets properly registered in the hash table.

The area of confusion arose when considering qdiscs created via `qdisc_create_dflt`. My analysis of `htb_graft` revealed that it utilizes `qdisc_create_dflt` when the `new` qdisc argument is `NULL`. The critical observation here is that `qdisc_create_dflt` *does not* add the newly created qdisc to the hash. This means that a default qdisc created in this specific scenario bypasses the hashing mechanism.

However, I found a piece of information that seemed to contradict this emerging pattern: `htb_change_class` *does* call `qdisc_hash_add(cl->leaf.q, true)`. This suggests that when a class is being modified, its associated leaf qdisc *is* added to the hash.

The crux of my current thought process is reconciling these observations: `htb_graft` is invoked during the deletion of a child qdisc. In this deletion scenario, `tc_modify_qdisc` is *not* called. Instead, `tc_get_qdisc` is invoked with `RTM_DELQDISC`. My current understanding is that `tc_get_qdisc` is the function responsible for handling `RTM_DELQDISC` operations.

Therefore, the core of my thinking is centered on the fact that while `htb_change_class` ensures its leaf qdiscs are hashed, `htb_graft`, when it creates a default qdisc (because `new == NULL`), fails to add that default qdisc to the hash. This seems like a potential inconsistency that needs further investigation, especially considering how `htb_graft` is triggered during child qdisc deletion and how `tc_get_qdisc` handles the subsequent `RTM_DELQDISC` operation.


436/4 2026/08/15 18:40 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:tc_get_qdisc]

Results:
map[SourceCode:1541:	static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1542:				struct netlink_ext_ack *extack)
1543:	{
1544:		struct net *net = sock_net(skb->sk);
1545:		struct tcmsg *tcm = nlmsg_data(n);
1546:		struct nlattr *tca[TCA_MAX + 1];
1547:		struct net_device *dev;
1548:		int err;
1549:	
1550:		err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,
1551:					     rtm_tca_policy, extack);
1552:		if (err < 0)
1553:			return err;
1554:	
1555:		dev = __dev_get_by_index(net, tcm->tcm_ifindex);
1556:		if (!dev)
1557:			return -ENODEV;
1558:	
1559:		netdev_lock_ops(dev);
1560:		err = __tc_get_qdisc(skb, n, extack, dev, tca, tcm);
1561:		netdev_unlock_ops(dev);
1562:	
1563:		return err;
1564:	}
 SourceFile:net/sched/sch_api.c]

437/4 2026/08/15 18:40 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 151045
							output: 40
							thoughts: 13
						

Thoughts:
**My Thought Process for Debugging `__tc_get_qdisc`**

Alright, so the immediate action I'm taking is to dive into the `__tc_get_qdisc` function. My goal here is to understand its inner workings, how it retrieves queuing discipline information, and what potential pitfalls or specific behaviors I might encounter within its implementation. I need to see precisely how it accesses and interprets the data structures related to queuing disciplines, and what return values or error conditions it's designed to handle. This is a critical step to diagnose the issue at hand.


438/4 2026/08/15 18:40 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:__tc_get_qdisc]

Results:
map[SourceCode:1471:	static int __tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1472:				  struct netlink_ext_ack *extack,
1473:				  struct net_device *dev,
1474:				  struct nlattr *tca[TCA_MAX + 1],
1475:				  struct tcmsg *tcm)
1476:	{
1477:		struct net *net = sock_net(skb->sk);
1478:		struct Qdisc *q = NULL;
1479:		struct Qdisc *p = NULL;
1480:		u32 clid;
1481:		int err;
1482:	
1483:		clid = tcm->tcm_parent;
1484:		if (clid) {
1485:			if (clid != TC_H_ROOT) {
1486:				if (TC_H_MAJ(clid) != TC_H_MAJ(TC_H_INGRESS)) {
1487:					p = qdisc_lookup(dev, TC_H_MAJ(clid));
1488:					if (!p) {
1489:						NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified classid");
1490:						return -ENOENT;
1491:					}
1492:					q = qdisc_leaf(p, clid, extack);
1493:				} else if (dev_ingress_queue(dev)) {
1494:					q = rtnl_dereference(dev_ingress_queue(dev)->qdisc_sleeping);
1495:				}
1496:			} else {
1497:				q = rtnl_dereference(dev->qdisc);
1498:			}
1499:			if (!q) {
1500:				NL_SET_ERR_MSG(extack, "Cannot find specified qdisc on specified device");
1501:				return -ENOENT;
1502:			}
1503:			if (IS_ERR(q))
1504:				return PTR_ERR(q);
1505:	
1506:			if (tcm->tcm_handle && q->handle != tcm->tcm_handle) {
1507:				NL_SET_ERR_MSG(extack, "Invalid handle");
1508:				return -EINVAL;
1509:			}
1510:		} else {
1511:			q = qdisc_lookup(dev, tcm->tcm_handle);
1512:			if (!q) {
1513:				NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified handle");
1514:				return -ENOENT;
1515:			}
1516:		}
1517:	
1518:		if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1519:			NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
1520:			return -EINVAL;
1521:		}
1522:	
1523:		if (n->nlmsg_type == RTM_DELQDISC) {
1524:			if (!clid) {
1525:				NL_SET_ERR_MSG(extack, "Classid cannot be zero");
1526:				return -EINVAL;
1527:			}
1528:			if (q->handle == 0) {
1529:				NL_SET_ERR_MSG(extack, "Cannot delete qdisc with handle of zero");
1530:				return -ENOENT;
1531:			}
1532:			err = qdisc_graft(dev, p, skb, n, clid, NULL, q, extack);
1533:			if (err != 0)
1534:				return err;
1535:		} else {
1536:			qdisc_get_notify(net, skb, n, clid, q, NULL);
1537:		}
1538:		return 0;
1539:	}
 SourceFile:net/sched/sch_api.c]

439/4 2026/08/15 18:40 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 152231
							output: 34
							thoughts: 408
						

Thoughts:
**My Thought Process Unraveling the `RTM_DELQDISC` Race**

Okay, let me trace this out from my perspective. I've just spotted this `RTM_DELQDISC` call, and it's passing `new == NULL`. This immediately flags something because it implies we're deleting a child qdisc, not replacing it with a new one.

Following the call chain, `qdisc_graft` is invoked with this `NULL` `new` argument. Inside `qdisc_graft`, it calls the `cops->graft` function pointer. For the HTB (Hierarchical Token Bucket) qdisc, this means `htb_graft` gets executed.

Now, here's where my attention sharpens. In `htb_graft`, when a child qdisc is being detached or removed, it often needs to create a default qdisc to take its place or handle the situation. This is where `qdisc_create_dflt` comes into play. My initial thought is, "Alright, it's creating a default qdisc."

But then, I notice a crucial detail: `qdisc_create_dflt` *doesn't* call `qdisc_hash_add`. This is a red flag. If a qdisc isn't added to the hash, it's effectively invisible to lookups based on its handle.

My immediate question becomes: how does this relate to the warning I'm seeing? The warning is `WARN_ON_ONCE(parentid != TC_H_ROOT);`. I see that `parentid` here is `sch->parent`, which is actually the classid of the HTB class. And `TC_H_MAJ(parentid)` extracts the major handle, which *should* be the handle of the HTB qdisc itself. So, the warning is telling me that the *parent qdisc* (the HTB qdisc in this case) is not present in the hash.

This seems contradictory. I know the HTB qdisc was initially added to the hash when it was created via `tc qdisc add`. If it's no longer in the hash, it must have been removed. The most logical reason for an HTB qdisc to be removed from the hash is when it's being destroyed.

This leads me back to the race condition I suspected. The scenario must be: the HTB qdisc is in the process of being destroyed, and as part of its destruction, it removes itself from the hash. However, concurrently, a timer associated with a child qdisc (like SFQ, perhaps) fires. This timer's handler then tries to access the parent HTB qdisc, but it's already been removed from the hash, triggering the warning.

Now, I need to consider the reproducer. If the reproducer isn't explicitly sending an `RTM_DELQDISC` message for the HTB qdisc, how is it being destroyed in the first place? My next thought is to investigate what happens when the network namespace itself is torn down. When a network namespace is destroyed, it goes through a shutdown process, likely calling something like `default_device_exit`. This process iterates through all devices in the namespace, and when a device is destroyed, all its associated qdiscs are also destroyed. So, it's highly probable that the reproducer is exiting, leading to the network namespace cleanup, which in turn triggers the destruction of the HTB qdisc and the subsequent race. I should definitely check the `dev_shutdown` path to confirm this.


440/4 2026/08/15 18:40 tool codesearch-definition-source
0m Args:
map[ContextFile:net/core/dev.c Name:dev_shutdown]

Results:
map[SourceCode:1510:	void dev_shutdown(struct net_device *dev)
1511:	{
1512:		netdev_for_each_tx_queue(dev, shutdown_scheduler_queue, &noop_qdisc);
1513:		if (dev_ingress_queue(dev))
1514:			shutdown_scheduler_queue(dev, dev_ingress_queue(dev), &noop_qdisc);
1515:		qdisc_put(rtnl_dereference(dev->qdisc));
1516:		rcu_assign_pointer(dev->qdisc, &noop_qdisc);
1517:	
1518:		WARN_ON(timer_pending(&dev->watchdog_timer));
1519:	}
 SourceFile:net/sched/sch_generic.c]

441/4 2026/08/15 18:40 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 152875
							output: 37
							thoughts: 366
						

Thoughts:
**My Thought Process Unraveling the Race Condition**

So, my current line of inquiry is centered on understanding a race condition that appears to be triggered during network namespace teardown. I'm following the execution flow, and I see that `dev_shutdown` is involved. Specifically, it calls `qdisc_put(rtnl_dereference(dev->qdisc))`. My understanding here is that this action is responsible for destroying the root qdisc, which in this scenario is HTB.

Now, I'm connecting this to the broader context. When the reproducer program exits, it leads to the destruction of the network namespace, the shutdown of the loopback device (`lo`), and consequently, the destruction of that root HTB qdisc. This, in turn, seems to be the trigger for the race condition I'm investigating.

However, I hit a snag: the reproducer timed out after a significant period, 2 minutes and 30 seconds. This timeout suggests something isn't proceeding as expected or is being blocked. I need to understand *why* it timed out.

I'm looking at the reproducer itself, and it's a C program that operates within a loop. The output indicates it successfully unshares and then starts this "race loop." Within this loop, it's creating HTB qdiscs, classes, SFQ, and sending packets. But then, I had a crucial question: what happens if it *doesn't* explicitly delete the qdisc? Does it just keep creating them?

This led me to reconsider the interaction with the `lo` device. If the reproducer is creating an HTB qdisc on `lo`, it must be replacing the existing one, not just piling up new ones indefinitely. This brought me to the `tc_modify_qdisc` operation. I suspect it's being invoked with the `NLM_F_REPLACE` flag.

To confirm this, I'm checking the netlink flags in the `strace` output. I see `nlmsg_flags=NLM_F_REQUEST|0x600`. Now, I know that `0x600` translates to `NLM_F_CREATE | NLM_F_REPLACE` (which is `0x400 | 0x200`). So, yes, my suspicion is confirmed – it is indeed replacing the existing HTB qdisc.

This replacement is the key insight I've gained. When `tc_modify_qdisc` replaces an existing qdisc, it internally calls `qdisc_graft`. And `qdisc_graft`, in turn, calls `qdisc_replace`. My immediate thought upon seeing `qdisc_replace` was to scrutinize its behavior. And here's the critical point I'm focusing on now: `qdisc_replace` does *not* appear to call `qdisc_hash_del`. This is a significant deviation, and I need to go back and re-examine the `qdisc_replace` function in detail to fully grasp the implications of this omission and how it contributes to the observed race condition.


442/4 2026/08/15 18:40 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_replace]

Results:
map[SourceCode:1378:	static inline struct Qdisc *qdisc_replace(struct Qdisc *sch, struct Qdisc *new,
1379:						  struct Qdisc **pold)
1380:	{
1381:		struct Qdisc *old;
1382:	
1383:		sch_tree_lock(sch);
1384:		old = *pold;
1385:		*pold = new;
1386:		if (old != NULL)
1387:			qdisc_purge_queue(old);
1388:		sch_tree_unlock(sch);
1389:	
1390:		return old;
1391:	}
 SourceFile:include/net/sch_generic.h]

443/4 2026/08/15 18:40 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 153473
							output: 38
							thoughts: 29
						

Thoughts:
**A Deep Dive into `qdisc_graft` and its Cascading Effects**

My current investigation has led me to a rather intriguing point within the kernel's networking stack, specifically the `qdisc_graft` function. As I trace the execution flow, a crucial observation emerges: `qdisc_graft` doesn't operate in isolation; it directly invokes `notify_and_destroy`. This is a significant detail, as it implies that any operation involving `qdisc_graft` will inevitably trigger the destruction of the previously attached queuing discipline (qdisc) and, importantly, notify interested parties about this change.

My immediate next step, therefore, is to scrutinize the `notify_and_destroy` function itself. Understanding its internal workings – what notifications it sends, to whom, and precisely how it handles resource cleanup – is paramount. This function likely plays a critical role in how the system reacts to qdisc replacements and could be a source of unexpected behavior or a key point for optimization. I need to see the specifics of its implementation to fully grasp the implications of `qdisc_graft`'s behavior.


444/4 2026/08/15 18:40 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:notify_and_destroy]

Results:
map[SourceCode:1057:	static void notify_and_destroy(struct net *net, struct sk_buff *skb,
1058:				       struct nlmsghdr *n, u32 clid,
1059:				       struct Qdisc *old, struct Qdisc *new,
1060:				       struct netlink_ext_ack *extack)
1061:	{
1062:		if (new || old)
1063:			qdisc_notify(net, skb, n, clid, old, new, extack);
1064:	
1065:		if (old)
1066:			qdisc_put(old);
1067:	}
 SourceFile:net/sched/sch_api.c]

445/4 2026/08/15 18:40 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 153731
							output: 33
							thoughts: 1176
						

Thoughts:
**My Thought Process Regarding the Race Condition in qdisc Replacement**

I've been digging into this potential race condition, and it seems to revolve around the `notify_and_destroy` function and its interaction with the hashing of qdiscs. My understanding is that when a root qdisc is replaced, `notify_and_destroy` calls `qdisc_put`, which in turn calls `__qdisc_destroy`. The crucial part is that `__qdisc_destroy` then invokes `qdisc_hash_del`. This sequence confirms my initial suspicion: replacing the root qdisc *does* correctly remove the old HTB from the hash and initiate its destruction, along with all its children, including SFQ. So, the race *can* indeed occur during this root qdisc replacement.

The reproducer's strategy is to continuously loop through creating a new HTB (which replaces the old one), then setting up classes, creating an SFQ, and finally sending packets to activate the SFQ timer. This continuous cycle of destroying the old HTB and creating a new one should, in theory, expose the race.

However, the fact that the reproducer timed out is puzzling. I'm considering a few possibilities:
*   **The race window is simply too narrow:** The actual window of vulnerability might be so small that it's rarely, if ever, hit.
*   **The reproducer isn't hitting the race condition due to SFQ timer timing:** It's possible that the `sfq_perturbation` timer isn't firing at the opportune moment. This timer's activation is dependent on `q->perturb_period`.

I need to investigate the `perturb_period` value. The `strace` output shows an `RTM_NEWTCLASS` message for HTB, but it's truncated and doesn't reveal the SFQ creation details. While I don't have direct access to the C source of the reproducer, I know its *intent* is to trigger this bug.

The timeout of 2 minutes and 30 seconds is significant. If the reproducer ran for that long without crashing the kernel, it implies that the `WARN_ON_ONCE` condition, which should have been triggered, didn't cause a kernel panic. This is because `WARN_ON_ONCE` only produces a warning unless `panic_on_warn` is explicitly set to 1, which Syzkaller usually does. So, the question becomes: did the kernel *actually* panic? The console output is inconclusive, showing routine messages and then a "Done." message from the reproducer.

This "Done." message is another anomaly. The `strace` indicates the reproducer was in a loop (`getpid`, `sendto`, `recvfrom`), yet it printed "Done." This suggests the loop terminated. If the loop terminated normally, why the 2m30s timeout on the host command?
*   Perhaps the loop count was too small, leading to a quick exit *before* the timeout was reached, but the *host* command still timed out for unrelated reasons?
*   Alternatively, if the reproducer forks children, the parent might be waiting for them, and one of those children could be stuck, causing the host command to hang.
*   Could this "Done." message be from a syz-reproducer that *intended* to loop indefinitely but somehow exited?

Ultimately, my primary concern is to understand if the bug itself is genuinely present and reproducible, or if it has been fixed. The "Done." message and the lack of a clear kernel panic (or the nature of the timeout) are the immediate puzzles I need to resolve. I need to find commits related to `qdisc_tree_reduce_backlog` and specifically search for fixes addressing this warning.


446/4 2026/08/15 18:40 tool grepper
0m Args:
map[Expression:qdisc_tree_reduce_backlog PathPrefix:net/sched/]

Results:
map[Output:net/sched/sch_api.c=759=static u32 qdisc_alloc_handle(struct net_device *dev)
--
net/sched/sch_api.c-775-
net/sched/sch_api.c:776:void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
net/sched/sch_api.c-777-{
--
net/sched/sch_api.c-813-}
net/sched/sch_api.c:814:EXPORT_SYMBOL(qdisc_tree_reduce_backlog);
net/sched/sch_api.c-815-
--
net/sched/sch_cake.c=1756=static s32 cake_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_cake.c-1835-
net/sched/sch_cake.c:1836:		qdisc_tree_reduce_backlog(sch, 1-numsegs, len-slen);
net/sched/sch_cake.c-1837-		consume_skb(skb);
--
net/sched/sch_cake.c-1857-
net/sched/sch_cake.c:1858:			qdisc_tree_reduce_backlog(sch, 1, ack_pkt_len);
net/sched/sch_cake.c-1859-			consume_skb(ack);
--
net/sched/sch_cake.c-1963-	if (same_flow) {
net/sched/sch_cake.c:1964:		qdisc_tree_reduce_backlog(sch, prev_qlen - 1,
net/sched/sch_cake.c-1965-					  prev_backlog - len);
--
net/sched/sch_cake.c-1967-	}
net/sched/sch_cake.c:1968:	qdisc_tree_reduce_backlog(sch, prev_qlen, prev_backlog);
net/sched/sch_cake.c-1969-	return NET_XMIT_SUCCESS;
--
net/sched/sch_cake.c=2007=static struct sk_buff *cake_dequeue(struct Qdisc *sch)
--
net/sched/sch_cake.c-2243-		WRITE_ONCE(b->tin_dropped, b->tin_dropped + 1);
net/sched/sch_cake.c:2244:		qdisc_tree_reduce_backlog(sch, 1, qdisc_pkt_len(skb));
net/sched/sch_cake.c-2245-		qdisc_qstats_drop(sch);
--
net/sched/sch_choke.c=113=static void choke_drop_by_idx(struct Qdisc *sch, unsigned int idx,
--
net/sched/sch_choke.c-127-	qdisc_qstats_backlog_dec(sch, skb);
net/sched/sch_choke.c:128:	qdisc_tree_reduce_backlog(sch, 1, qdisc_pkt_len(skb));
net/sched/sch_choke.c-129-	qdisc_drop(skb, sch, to_free);
--
net/sched/sch_choke.c=339=static int choke_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_choke.c-401-			}
net/sched/sch_choke.c:402:			qdisc_tree_reduce_backlog(sch, oqlen - sch->q.qlen, dropped);
net/sched/sch_choke.c-403-			q->head = 0;
--
net/sched/sch_codel.c=73=static void codel_dequeue_drop(struct Qdisc *sch)
--
net/sched/sch_codel.c-77-	if (q->stats.drop_count) {
net/sched/sch_codel.c:78:		qdisc_tree_reduce_backlog(sch, q->stats.drop_count,
net/sched/sch_codel.c-79-					  q->stats.drop_len);
--
net/sched/sch_codel.c=138=static int codel_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_codel.c-191-	}
net/sched/sch_codel.c:192:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_codel.c-193-
--
net/sched/sch_dualpi2.c=439=static int dualpi2_qdisc_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_dualpi2.c-494-			 */
net/sched/sch_dualpi2.c:495:			qdisc_tree_reduce_backlog(sch, 1 - cnt,
net/sched/sch_dualpi2.c-496-						  orig_len - byte_len);
--
net/sched/sch_dualpi2.c=610=static void dualpi2_dequeue_drop(struct Qdisc *sch)
--
net/sched/sch_dualpi2.c-614-	if (q->deferred_drops_cnt) {
net/sched/sch_dualpi2.c:615:		qdisc_tree_reduce_backlog(sch, q->deferred_drops_cnt,
net/sched/sch_dualpi2.c-616-					  q->deferred_drops_len);
--
net/sched/sch_dualpi2.c=791=static int dualpi2_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_dualpi2.c-936-	}
net/sched/sch_dualpi2.c:937:	qdisc_tree_reduce_backlog(sch, old_qlen - qdisc_qlen(sch),
net/sched/sch_dualpi2.c-938-				  old_backlog - sch->qstats.backlog);
--
net/sched/sch_fifo.c=38=static int pfifo_tail_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_fifo.c-54-
net/sched/sch_fifo.c:55:	qdisc_tree_reduce_backlog(sch, 0, prev_backlog - sch->qstats.backlog);
net/sched/sch_fifo.c-56-	return NET_XMIT_CN;
--
net/sched/sch_fq.c=1070=static int fq_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_fq.c-1205-	}
net/sched/sch_fq.c:1206:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_fq.c-1207-
--
net/sched/sch_fq_codel.c=185=static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_fq_codel.c-244-	if (ret == idx) {
net/sched/sch_fq_codel.c:245:		qdisc_tree_reduce_backlog(sch, prev_qlen - 1,
net/sched/sch_fq_codel.c-246-					  prev_backlog - pkt_len);
--
net/sched/sch_fq_codel.c-248-	}
net/sched/sch_fq_codel.c:249:	qdisc_tree_reduce_backlog(sch, prev_qlen, prev_backlog);
net/sched/sch_fq_codel.c-250-	return NET_XMIT_SUCCESS;
--
net/sched/sch_fq_codel.c=324=static void fq_codel_dequeue_drop(struct Qdisc *sch)
--
net/sched/sch_fq_codel.c-328-	if (q->cstats.drop_count) {
net/sched/sch_fq_codel.c:329:		qdisc_tree_reduce_backlog(sch, q->cstats.drop_count,
net/sched/sch_fq_codel.c-330-					  q->cstats.drop_len);
--
net/sched/sch_fq_codel.c=405=static int fq_codel_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_fq_codel.c-492-	}
net/sched/sch_fq_codel.c:493:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_fq_codel.c-494-
--
net/sched/sch_fq_pie.c=287=static int fq_pie_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_fq_pie.c-376-	}
net/sched/sch_fq_pie.c:377:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_fq_pie.c-378-
--
net/sched/sch_hhf.c=372=static int hhf_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_hhf.c-415-	/* As we dropped a packet, better let upper stack know this. */
net/sched/sch_hhf.c:416:	qdisc_tree_reduce_backlog(sch, 1, prev_backlog - sch->qstats.backlog);
net/sched/sch_hhf.c-417-	return NET_XMIT_SUCCESS;
--
net/sched/sch_hhf.c=537=static int hhf_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_hhf.c-602-	}
net/sched/sch_hhf.c:603:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_hhf.c-604-
--
net/sched/sch_netem.c=459=static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_netem.c-671-		/* Parent qdiscs accounted for 1 skb of size @prev_len */
net/sched/sch_netem.c:672:		qdisc_tree_reduce_backlog(sch, -(nb - 1), -(len - prev_len));
net/sched/sch_netem.c-673-	} else if (!skb) {
--
net/sched/sch_netem.c=729=static struct sk_buff *netem_dequeue(struct Qdisc *sch)
--
net/sched/sch_netem.c-781-					qdisc_qlen_dec(sch);
net/sched/sch_netem.c:782:					qdisc_tree_reduce_backlog(sch, 1, pkt_len);
net/sched/sch_netem.c-783-				}
--
net/sched/sch_pie.c=141=static int pie_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_pie.c-205-	}
net/sched/sch_pie.c:206:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_pie.c-207-
--
net/sched/sch_sfq.c=344=sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)
--
net/sched/sch_sfq.c-434-		slot_queue_add(slot, skb);
net/sched/sch_sfq.c:435:		qdisc_tree_reduce_backlog(sch, 0, delta);
net/sched/sch_sfq.c-436-		return NET_XMIT_CN;
--
net/sched/sch_sfq.c-468-	if (qlen != slot->qlen) {
net/sched/sch_sfq.c:469:		qdisc_tree_reduce_backlog(sch, 0, dropped - qdisc_pkt_len(skb));
net/sched/sch_sfq.c-470-		return NET_XMIT_CN;
--
net/sched/sch_sfq.c-473-	/* As we dropped a packet, better let upper stack know this */
net/sched/sch_sfq.c:474:	qdisc_tree_reduce_backlog(sch, 1, dropped);
net/sched/sch_sfq.c-475-	return NET_XMIT_SUCCESS;
--
net/sched/sch_sfq.c=534=static void sfq_rehash(struct Qdisc *sch)
--
net/sched/sch_sfq.c-600-	WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
net/sched/sch_sfq.c:601:	qdisc_tree_reduce_backlog(sch, dropped, drop_len);
net/sched/sch_sfq.c-602-}
--
net/sched/sch_sfq.c=630=static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_sfq.c-742-	rtnl_kfree_skbs(to_free, tail);
net/sched/sch_sfq.c:743:	qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
net/sched/sch_sfq.c-744-
--
net/sched/sch_taprio.c=582=static int taprio_enqueue_segmented(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_taprio.c-617-	if (numsegs > 1)
net/sched/sch_taprio.c:618:		qdisc_tree_reduce_backlog(sch, 1 - numsegs, len - slen);
net/sched/sch_taprio.c-619-	consume_skb(skb);
--
net/sched/sch_tbf.c=210=static int tbf_segment(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_tbf.c-241-	if (nb > 0) {
net/sched/sch_tbf.c:242:		qdisc_tree_reduce_backlog(sch, 1 - nb, prev_len - len);
net/sched/sch_tbf.c-243-		consume_skb(skb);
]

447/4 2026/08/15 18:40 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 158817
							output: 38
							thoughts: 908
						

Thoughts:
**My Thought Process Regarding the `qdisc_tree_reduce_backlog` Bug**

Okay, let's trace my thinking on this bug, which seems to be manifesting as a warning in `qdisc_tree_reduce_backlog`. I'm immediately drawn to the specific line number and function mentioned in the bug report: `WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29`. My first question is, has this particular issue already been addressed?

Then, I look at the reproducer. The fact that it timed out and didn't trigger the warning suggests it wasn't able to hit the race condition. This leads me to ponder *why* it failed. Is the window for this race condition incredibly narrow, such that over two and a half minutes, it just never materialized? Or does the race condition fundamentally require execution across multiple CPU cores, and my reproducer, being single-threaded, is missing that crucial element?

The `strace` output confirms the reproducer is indeed single-threaded. This is a significant piece of information. In this single-threaded scenario, the sequence of events is generally: create HTB, add classes, add SFQ, send some packets, and then finally replace the HTB qdisc. When the HTB qdisc is replaced, the `tc_modify_qdisc` function is invoked, and in this case, it's running on CPU 0. The packets being sent might, under certain conditions, trigger the timer.

Now, the critical part: the timing. The reproducer sends packets, and *then* calls `tc_modify_qdisc`. The timer, specifically the `sfq_perturbation` timer, is scheduled using `mod_timer`. A key characteristic of `mod_timer` is that it schedules the timer to fire on the *same CPU* that called it.

If the reproducer is single-threaded and not explicitly pinned to a specific CPU, it might migrate, but typically it will stick to its initial CPU. So, if the timer is scheduled on CPU 0, and `tc_modify_qdisc` is also running on CPU 0, then concurrent execution of the timer callback and `tc_modify_qdisc` (specifically within `__qdisc_destroy` during the qdisc replacement) is impossible, barring very specific interrupt handling scenarios.

This leads me to a "eureka!" moment. The reason the reproducer failed to trigger the bug is precisely because the timer, being scheduled by a single-threaded application on CPU 0, is also bound to CPU 0. For the bug to manifest, the timer *must* be scheduled and fire on a *different CPU* than the one executing `tc_modify_qdisc`.

Let's re-examine the SFQ timer scheduling. The `sfq_perturbation` timer is scheduled by `sfq_change` (and also when SFQ is initially created), which calls `mod_timer(&q->perturb_timer, jiffies + q->perturb_period)`. If the reproducer is single-threaded, `sfq_change` runs on CPU 0, and consequently, the `perturb_timer` is scheduled for CPU 0. Subsequently, `tc_modify_qdisc` also runs on CPU 0.

Now, the question of interrupts. Does `tc_modify_qdisc` disable interrupts? My understanding is that `tc_modify_qdisc` itself doesn't disable interrupts in a way that would prevent a timer from firing. `__qdisc_destroy` is called from `qdisc_put`, which is called from `notify_and_destroy`. I'm checking if any of these stages disable interrupts.

However, I recall that the timer callback (`sfq_perturbation`) runs in softirq context, which implies that BH (bottom halves) are disabled. The question is, what about `tc_modify_qdisc`? If `tc_modify_qdisc` is running in process context, it *can* be interrupted by a timer firing, even on the same CPU, provided interrupts are enabled. But if the timer also runs on the same CPU, and the race condition relies on the timer interfering with `__qdisc_destroy` while it's in a critical section, then this same-CPU scenario might not present the race.

The crucial detail I need to confirm is whether `__qdisc_destroy` itself, or functions it calls, disable interrupts or BH in a way that prevents concurrent execution with the timer, *especially* when both are on the same CPU. My initial thought was that `tc_modify_qdisc` wouldn't disable interrupts, allowing the timer to interrupt it. But the context of the timer callback and the critical section within `__qdisc_destroy` are key. The fact that `sfq_perturbation` runs in softirq context (BH disabled) is important. I need to verify if `__qdisc_destroy` disables BH or interrupts, and if `spin_lock(root_lock)` within `sfq_perturbation` is indeed `spin_lock_bh`. If `spin_lock(root_lock)` is *not* `spin_lock_bh`, then `sfq_perturbation` is running with BH enabled, meaning it *could* be interrupted by the timer, and if the timer fires on the same CPU, it could potentially interrupt `tc_modify_qdisc`. This is getting complex, and I need to focus on the interrupt/BH disabling behavior in `__qdisc_destroy`.


448/4 2026/08/15 18:41 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

449/4 2026/08/15 18:41 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 160145
							output: 38
							thoughts: 2348
						

Thoughts:
**My Thoughts on the `__qdisc_destroy` and SFQ Timer Interruption Issue**

This is a fascinating bug, and I've been piecing together how it can manifest, even on a single CPU. Initially, I thought `__qdisc_destroy` being interrupted by a timer on the same CPU would be impossible if it held a lock that the timer also needed. But the key realization is that `__qdisc_destroy` *doesn't* hold the `root_lock`.

Here's the sequence of events I've reasoned out:

1.  **The Interruption Window:** The core problem arises when `__qdisc_destroy` is called. It first calls `qdisc_hash_del(qdisc)`. Immediately after this, but *before* it calls `ops->destroy(qdisc)` (which would eventually lead to SFQ-specific cleanup), a timer interrupt can fire on the same CPU.

2.  **Timer's Action:** When the timer interrupt fires, the kernel executes `sfq_perturbation`. This function, crucial for SFQ's hashing, attempts to acquire the `root_lock` using `spin_lock(root_lock)`. Since `__qdisc_destroy` *isn't* holding `root_lock` at this precise moment, `sfq_perturbation` successfully grabs it.

3.  **The Call Chain:** Once `sfq_perturbation` has the `root_lock`, it proceeds to call `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`. This function is designed to clean up orphaned qdiscs. When it looks up the parent qdisc using the now-stale hash information (because `qdisc_hash_del` was already called in `__qdisc_destroy`), it fails to find the expected parent, leading to the warning message I've observed.

4.  **Resuming `__qdisc_destroy`:** After the timer interrupt handler (`sfq_perturbation`) finishes, execution returns to `__qdisc_destroy`. It then proceeds to call `ops->destroy(qdisc)`. For an HTB qdisc using SFQ, this triggers a cascade: `htb_destroy` calls `htb_destroy_class`, which in turn calls `qdisc_put(sfq)`. This leads back to `__qdisc_destroy(sfq)`, which calls `sfq_destroy`, and finally `timer_delete_sync`. Since the timer interrupt has already completed, `timer_delete_sync` simply returns without issue.

This sequence perfectly explains how the warning can be triggered even on a single CPU. The crucial missing piece was realizing `__qdisc_destroy` doesn't hold the `root_lock` during its critical phase.

**Why the Reproducer Might Fail and How to Improve Chances:**

The reason the provided reproducer might struggle to reliably trigger this bug is the extremely narrow timing window. The timer needs to fire *exactly* between `qdisc_hash_del(qdisc)` and `ops->destroy(qdisc)` in `__qdisc_destroy`. This window is incredibly small, likely in the order of microseconds.

Timers, on the other hand, typically have a granularity of at least one "jiffy" (which is 1ms or 4ms, depending on the system). The probability of a jiffy-timed timer aligning perfectly with that microsecond window is astronomically low. The reproducer is essentially just spamming qdisc replacements, hoping for a statistical miracle.

To increase the likelihood of hitting this race, I've considered a few approaches:

*   **Tighter Timing:** The most direct way is to have the timer fire more frequently. Setting `perturb_period` to `1` (meaning every jiffy) is a start, but still might not be enough.
*   **Ensuring Packets in SFQ:** A critical condition for `sfq_perturbation` to call `sfq_rehash` (and thus `qdisc_tree_reduce_backlog`) is that the SFQ queue (`q->tail`) must not be empty. If the queue is empty, `sfq_rehash` is skipped, and the bug won't manifest. The reproducer's use of `AF_PACKET` on a fast interface like `lo` means packets are dequeued almost instantly, likely leaving the SFQ queue empty most of the time.
*   **Keeping Packets Queued:** To ensure packets *stay* in the SFQ queue, I've thought about:
    *   **Rate Limiting:** Configuring the HTB qdisc with a very low rate (e.g., 1 bit per second) would cause packets to back up significantly.
    *   **Device State Manipulation:** While less direct, perhaps manipulating the network device's transmit queue state could indirectly influence packet queuing.
*   **Hash Collisions:** For `sfq_rehash` to actually *drop* packets (which is what triggers the `dropped` and `drop_len` arguments for `qdisc_tree_reduce_backlog`), there needs to be a hash collision after the perturbation. This typically happens when multiple original flows hash to different slots, but after perturbation, they all hash to the *same* new slot, exceeding that slot's `maxdepth`. The reproducer's use of `SO_PRIORITY` might not be sufficient to create the necessary variety of flows for this.

I'm currently investigating how the HTB configuration in the reproducer (specifically the rate set to 1000 bytes/sec) affects packet queuing, and exploring ways to force hash collisions within SFQ to make `sfq_rehash` drop packets and thus increase the chance of triggering the bug.


450/4 2026/08/15 18:41 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_hash]

Results:
map[SourceCode: 150:	static unsigned int sfq_hash(const struct sfq_sched_data *q,
 151:				     const struct sk_buff *skb)
 152:	{
 153:		return skb_get_hash_perturb(skb, &q->perturbation) & (q->divisor - 1);
 154:	}
 SourceFile:net/sched/sch_sfq.c]

451/4 2026/08/15 18:41 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 162638
							output: 42
							thoughts: 233
						

Thoughts:
**My Thought Process Regarding SFQ and Flow Hashing**

My exploration into the behavior of the Stochastic Fairness Queueing (SFQ) algorithm has led me to a key realization about how it interacts with flow hashing, particularly in the context of ensuring no packets are dropped.

I began by noting that `skb_get_hash_perturb` is the mechanism that leverages the skb's flow hash. This immediately brought to mind a crucial question: does `SO_PRIORITY` have any influence on this flow hash calculation? My understanding is that it does not. While `SO_PRIORITY` does indeed affect the `skb->priority` field, and this field is instrumental in selecting the appropriate Hierarchical Token Bucket (HTB) class, it has no bearing on the flow hash itself.

This distinction is critical. If the flow hash remains consistent for all packets, then by design, they will all be directed to the same queueing slot. The inherent limitation of these slots, as defined by `maxdepth`, is that they can hold a maximum of `maxdepth` packets.

Now, considering a reproducer scenario where packets share identical source and destination addresses, it's clear that they will possess the same flow hash. Consequently, they will all converge on a single slot. The next logical step in the SFQ process is when `sfq_rehash` is invoked. At this point, all these packets, still sharing the same flow hash, will be reassigned to a single *new* slot.

Here's the crucial part of my deduction: since there are only ever `maxdepth` packets in play within this scenario, they will *never* exceed the `maxdepth` limit in their new slot. This directly leads to the conclusion that the `dropped` counter will remain at 0.

And if `dropped` is 0, then the function `qdisc_tree_reduce_backlog(sch, 0, 0)` is called. I've paused here to re-examine the specifics of `qdisc_tree_reduce_backlog` to ensure my understanding of its behavior in this zero-drop scenario is completely accurate.


452/4 2026/08/15 18:41 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

453/4 2026/08/15 18:41 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 163515
							output: 36
							thoughts: 470
						

Thoughts:
**My Thought Process Regarding `qdisc_tree_reduce_backlog` and `sfq_rehash` Warnings**

I've been digging into the behavior of `qdisc_tree_reduce_backlog`, and it seems I've stumbled upon a rather subtle issue that could lead to unexpected warnings. My initial realization was that `qdisc_tree_reduce_backlog` is being invoked even when there are no elements to process, specifically when both `n` and `len` are zero. What's more concerning is that it *still* attempts to look up its parent and, in doing so, can trigger a warning.

Let's break this down: if `n` is zero, it naturally follows that `drops` will also be zero. The function then iterates through its parents. If, during this iteration, it fails to find the `sch` (scheduler) object, it triggers a `WARN_ON_ONCE`. This implies that the `dropped` count doesn't actually need to be greater than zero for this warning to manifest; simply calling `qdisc_tree_reduce_backlog` under the right conditions is sufficient.

Now, considering the interaction with `sfq_rehash`, I've noted that `sfq_rehash` *always* calls `qdisc_tree_reduce_backlog` with `dropped` and `drop_len`. This is critical. It means that every time `sfq_rehash` is executed, it has the potential to trigger that warning if the parent scheduler is missing.

Further tracing shows that `sfq_rehash` is itself called by `sfq_perturbation` when `q->tail` is not NULL. And `q->tail` will not be NULL if there's at least one packet present in the qdisc. Therefore, the scenario that can lead to the warning is straightforward: we need just *one* packet in the qdisc when the timer fires, and crucially, the parent scheduler must be absent.

This brings me to a point of reflection about the reproducer. If the reproducer is single-threaded, how can the timer possibly fire at the precise moment between `qdisc_hash_del` and `ops->destroy`? My understanding is that this is a race condition. The timer interrupt, being an asynchronous event, can occur at *any* point in time. If the reproducer is running in a loop, it will eventually hit this vulnerable window, although I concede that this window appears to be very narrow.

I'm now pondering whether there's a way to widen this window. To do that, I need to understand what's happening within `__qdisc_destroy` specifically in the section between `qdisc_hash_del` and `ops->destroy`. Looking at the provided code snippet:

```c
	qdisc_hash_del(qdisc);

	qdisc_put_stab(rtnl_dereference(qdisc->stab));
#endif
	gen_kill_estimator(&qdisc->rate_est);

	qdisc_reset(qdisc);


	if (ops->destroy)
		ops->destroy(qdisc);
```

I see that `qdisc_reset` is called, and for HTB, this translates to `htb_reset`. This sequence of operations within `__qdisc_destroy` is where the race condition becomes apparent. My focus is now on how the timing of these specific steps, combined with the asynchronous timer interrupt, can expose the vulnerability.


454/4 2026/08/15 18:42 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_reset]

Results:
map[SourceCode:1000:	/* reset all classes */
1001:	/* always caled under BH & queue lock */
1002:	static void htb_reset(struct Qdisc *sch)
1003:	{
1004:		struct htb_sched *q = qdisc_priv(sch);
1005:		struct htb_class *cl;
1006:		unsigned int i;
1007:	
1008:		for (i = 0; i < q->clhash.hashsize; i++) {
1009:			hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
1010:				if (cl->level)
1011:					memset(&cl->inner, 0, sizeof(cl->inner));
1012:				else {
1013:					if (cl->leaf.q && !q->offload)
1014:						qdisc_reset(cl->leaf.q);
1015:				}
1016:				cl->prio_activity = 0;
1017:				cl->cmode = HTB_CAN_SEND;
1018:			}
1019:		}
1020:		qdisc_watchdog_cancel(&q->watchdog);
1021:		__qdisc_reset_queue(&q->direct_queue);
1022:		memset(q->hlevel, 0, sizeof(q->hlevel));
1023:		memset(q->row_mask, 0, sizeof(q->row_mask));
1024:	}
 SourceFile:net/sched/sch_htb.c]

455/4 2026/08/15 18:42 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 164448
							output: 38
							thoughts: 42
						

Thoughts:
**My Thought Process Regarding `htb_reset` and SFQ**

Ah, so I'm diving into the intricacies of `htb_reset`. My initial observation is that it's a pretty broad operation, designed to systematically go through every single class that's under its purview. And what's it doing for each class? Well, it's invoking `qdisc_reset` on the leaf queue associated with that class (`cl->leaf.q`). This tells me that `htb_reset`'s primary function is to ensure that the queuing discipline at the leaf level for each of these classes is brought back to a clean, initial state.

Now, the next piece of the puzzle is how this interacts with specific queuing disciplines. The text explicitly points out the case of SFQ (Stochastic Fairness Queuing). When `qdisc_reset` is called, and it encounters an SFQ leaf queue, it then proceeds to call `sfq_reset`. This is a crucial detail. It means that the generic reset operation performed by `qdisc_reset` has a specialized implementation for SFQ. This specialized `sfq_reset` is what will handle the actual cleanup and reinitialization of the SFQ data structures, likely to ensure fairness and proper functioning after a reset.

So, my internal model is building this picture: `htb_reset` acts as a high-level orchestrator, triggering a reset for all its managed child queues. For those child queues that happen to be SFQ, this generic reset then delegates to the specific SFQ reset logic, ensuring a correct and context-aware cleanup. It's a layered approach, which makes sense for managing complex queuing structures.


456/4 2026/08/15 18:42 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_reset]

Results:
map[SourceCode: 519:	static void
 520:	sfq_reset(struct Qdisc *sch)
 521:	{
 522:		struct sk_buff *skb;
 523:	
 524:		while ((skb = sfq_dequeue(sch)) != NULL)
 525:			rtnl_kfree_skbs(skb, skb);
 526:	}
 SourceFile:net/sched/sch_sfq.c]

457/4 2026/08/15 18:42 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 164650
							output: 54
							thoughts: 2298
						

Thoughts:
**My Thoughts on the SFQ Race Condition**

Okay, I've been digging into this SFQ issue, and it's a tricky one. It all seems to boil down to a very specific race condition involving timers and queue management.

My initial realization was that `sfq_reset` is quite aggressive – it dequeues *all* packets from the SFQ. This immediately leads to a critical state: if all packets are dequeued, `q->tail` becomes `NULL`. Now, here's the crucial part: if `q->tail` is `NULL`, the `sfq_perturbation` function *will not* call `sfq_rehash`. The code clearly shows this:

```c
	if (!q->filter_list && q->tail)
		sfq_rehash(sch);
```

This means that for `sfq_rehash` to be called, both `!q->filter_list` must be true (which usually is) AND `q->tail` must be non-NULL. If `q->tail` is `NULL`, the timer just re-arms itself and doesn't do the rehashing it's supposed to.

So, the timer *must* fire and attempt to rehash *before* `sfq_reset` finishes its job and sets `q->tail` to `NULL`.

Digging deeper, I see that `sfq_reset` is called from `htb_reset`, which itself is invoked by `qdisc_reset(htb)`. This chain of calls implies that the critical window, where the timer could potentially interfere, is between `qdisc_hash_del(htb)` and the completion of `sfq_reset(sfq)`. Looking at the code for `qdisc_reset`, the sequence is something like this:

```c
	qdisc_hash_del(qdisc);
	qdisc_put_stab(rtnl_dereference(qdisc->stab));
	gen_kill_estimator(&qdisc->rate_est);
	// inside qdisc_reset(htb):
	for (i = 0; i < q->clhash.hashsize; i++) {
		hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
			if (cl->level) ...
			else qdisc_reset(cl->leaf.q); // This is where sfq_reset gets called
```

Now, this window seems incredibly small. But what if the scenario involves many classes? The reproducer creates 100 classes. If `sfq_reset` is only called on the SFQ in the *last* of these 100 classes, then `htb_reset` has to iterate through all those classes first. This would widen the window considerably. The reproducer generating 100 `RTM_NEWTCLASS` messages and then presumably creating an SFQ on one of them, perhaps the last one, makes this more plausible.

However, the reproducer timed out. Why? Was it just a matter of not hitting the race condition? Or is there something more fundamental I'm missing?

Here's where it gets really interesting. If the timer fires, it needs to acquire the `root_lock`. But I noticed that `tc_modify_qdisc` does *not* take the `root_lock` when calling `qdisc_put(old)`! While `qdisc_replace` *does* take the `root_lock`, the subsequent call to `qdisc_put(old)` happens *outside* of that lock. This means that `__qdisc_destroy` can be called *without* the `root_lock`. So, it's entirely possible for the timer to fire, grab the `root_lock`, while `__qdisc_destroy` is in progress without it. This is a valid race condition.

The question then becomes: can I make this race 100% reliable?

My thought was to use `tc_modify_qdisc` to replace the HTB qdisc. If I could slow down `__qdisc_destroy` between `qdisc_hash_del` and `qdisc_reset`, that might help. What's in between? `qdisc_put_stab` and `gen_kill_estimator`. If I could somehow make `gen_kill_estimator` slow, or make `htb_reset` slow *before* it gets to our SFQ, that would expand the window.

Creating a *lot* more classes, say 10,000, would make `htb_reset` take significantly longer to iterate. This would blow the window open by a factor of 100 compared to the reproducer's 100 classes.

But I also considered other operations. What about `tc class delete`?
`htb_delete` calls `htb_destroy_class`. Before that, it calls `qdisc_purge_queue(cl->leaf.q)`. This, in turn, calls `qdisc_reset(q)`. `qdisc_reset` on an SFQ calls `sfq_reset`, which dequeues all packets and sets `q->tail` to `NULL`. This happens *before* `htb_destroy_class`. So, by the time `htb_destroy_class` is called, `q->tail` is already `NULL`. As we established, if `q->tail` is `NULL`, `sfq_rehash` won't be called. Therefore, `tc class delete` shouldn't trigger the bug.

What about `tc qdisc delete`?
When deleting the root qdisc, `qdisc_replace` is called with `p` (parent) being `NULL`. `qdisc_replace` calls `qdisc_purge_queue(old)` *while holding the `sch_tree_lock`*.
```c
	sch_tree_lock(sch);
	old = *pold;
	*pold = new; // new is NULL here for delete
	if (old != NULL)
		qdisc_purge_queue(old);
	sch_tree_unlock(sch);
```
This `qdisc_purge_queue` calls `qdisc_reset(old)`, which calls `sfq_reset`, emptying the queue and setting `q->tail` to `NULL`. This all happens *inside* the `sch_tree_lock`.
Crucially, when `sch_tree_unlock` is called, the queue (`old`) is already empty. Then `notify_and_destroy` calls `qdisc_put(old)`. This eventually leads to `__qdisc_destroy`, which calls `qdisc_hash_del`.
But here's the catch again: `q->tail` is `NULL` because `qdisc_purge_queue` emptied it. And if `q->tail` is `NULL`, `sfq_perturbation` will *not* call `sfq_rehash`. The timer will simply re-arm itself and return, never calling `qdisc_tree_reduce_backlog`.

This is where I'm stuck. If `tc qdisc delete` empties the queue *under the tree lock*, and `q->tail` becomes `NULL`, then the condition for `sfq_rehash` (`!q->filter_list && q->tail`) is not met. So how could the bug have happened in the syzbot report if `tc qdisc delete` is the trigger?

I need to re-examine the state of `q->filter_list` or if there's any way `q->tail` could become non-NULL *after* `qdisc_purge_queue` but *before* `sfq_perturbation` gets called in `__qdisc_destroy`. It feels like a contradiction with how `qdisc_replace` is structured, but the observed behavior suggests there's a path I'm not fully grasping.


458/4 2026/08/15 18:42 tool codesearch-find-references
0m Args:
map[ContextFile:net/sched/sch_generic.c IncludeSnippetLines:2 Name:qdisc_replace SourceTreePrefix:net/sched/]

Results:
map[References:[map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:cbs_graft SourceFile:net/sched/sch_cbs.c SourceLine:518 SourceSnippet: 516:		}
 517:	
 518:		*old = qdisc_replace(sch, new, &q->qdisc);
 519:		return 0;
 520:	}
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:drr_graft_class SourceFile:net/sched/sch_drr.c SourceLine:221 SourceSnippet: 219:		}
 220:	
 221:		*old = qdisc_replace(sch, new, &cl->qdisc);
 222:		return 0;
 223:	}
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:ets_class_graft SourceFile:net/sched/sch_ets.c SourceLine:271 SourceSnippet: 269:		}
 270:	
 271:		*old = qdisc_replace(sch, new, &cl->qdisc);
 272:		ets_offload_graft(sch, new, *old, arg, extack);
 273:		return 0;
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:hfsc_graft_class SourceFile:net/sched/sch_hfsc.c SourceLine:1199 SourceSnippet:1197:		}
1198:	
1199:		*old = qdisc_replace(sch, new, &cl->qdisc);
1200:		return 0;
1201:	}
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:htb_graft SourceFile:net/sched/sch_htb.c SourceLine:1474 SourceSnippet:1472:		}
1473:	
1474:		*old = qdisc_replace(sch, new, &cl->leaf.q);
1475:	
1476:		if (q->offload) {
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:multiq_graft SourceFile:net/sched/sch_multiq.c SourceLine:289 SourceSnippet: 287:			new = &noop_qdisc;
 288:	
 289:		*old = qdisc_replace(sch, new, &q->queues[band]);
 290:		return 0;
 291:	}
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:netem_graft SourceFile:net/sched/sch_netem.c SourceLine:1371 SourceSnippet:1369:		struct netem_sched_data *q = qdisc_priv(sch);
1370:	
1371:		*old = qdisc_replace(sch, new, &q->qdisc);
1372:		return 0;
1373:	}
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:prio_graft SourceFile:net/sched/sch_prio.c SourceLine:302 SourceSnippet: 300:		}
 301:	
 302:		*old = qdisc_replace(sch, new, &q->queues[band]);
 303:	
 304:		graft_offload.handle = sch->handle;
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:qfq_graft_class SourceFile:net/sched/sch_qfq.c SourceLine:616 SourceSnippet: 614:		}
 615:	
 616:		*old = qdisc_replace(sch, new, &cl->qdisc);
 617:		return 0;
 618:	}
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:red_graft SourceFile:net/sched/sch_red.c SourceLine:517 SourceSnippet: 515:			new = &noop_qdisc;
 516:	
 517:		*old = qdisc_replace(sch, new, &q->qdisc);
 518:	
 519:		red_graft_offload(sch, new, *old, extack);
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:sfb_graft SourceFile:net/sched/sch_sfb.c SourceLine:639 SourceSnippet: 637:			new = &noop_qdisc;
 638:	
 639:		*old = qdisc_replace(sch, new, &q->qdisc);
 640:		return 0;
 641:	}
] map[ReferenceKind:calls ReferencingEntityKind:function ReferencingEntityName:tbf_graft SourceFile:net/sched/sch_tbf.c SourceLine:576 SourceSnippet: 574:			new = &noop_qdisc;
 575:	
 576:		*old = qdisc_replace(sch, new, &q->qdisc);
 577:	
 578:		tbf_offload_graft(sch, new, *old, extack);
]] TruncatedOutput:false]

459/4 2026/08/15 18:42 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 168250
							output: 40
							thoughts: 229
						

Thoughts:
**My Thought Process Regarding Root Qdisc Replacement**

Alright, so I'm tracing the execution path here, and I've just realized something crucial. My initial assumption was that `qdisc_replace` was the ultimate function for modifying qdiscs. However, I see now that it's actually called by `htb_graft`. This is an important distinction.

But that leads me to a more fundamental question: what happens when I try to replace the *root* qdisc itself? That's a different scenario. My understanding is that `tc_modify_qdisc` is the entry point for such operations. Diving deeper into `tc_modify_qdisc`, I see it eventually calls `qdisc_graft`.

Now, the critical piece of logic lies within `qdisc_graft` when `p` is NULL, which signifies an attempt to graft onto the root. If `ingress` is false (which is the typical case for egress traffic), there's a loop that iterates through the device's transmit queues. Inside this loop, `dev_graft_qdisc` is invoked for each queue, and it handles replacing the old qdisc with the new one.

And here's the penny dropping: I've just checked the implementation of `dev_graft_qdisc`, and it *does not* appear to call `qdisc_purge_queue`. This is a significant omission from my perspective. If the old qdisc isn't purged, it means its resources might not be properly cleaned up when a new one is grafted in its place at the root level. I need to investigate `dev_graft_qdisc` further to confirm this behavior and understand its implications.


460/4 2026/08/15 18:42 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:dev_graft_qdisc]

Results:
map[SourceCode:1170:	/* Attach toplevel qdisc to device queue. */
1171:	struct Qdisc *dev_graft_qdisc(struct netdev_queue *dev_queue,
1172:				      struct Qdisc *qdisc)
1173:	{
1174:		struct Qdisc *oqdisc = rtnl_dereference(dev_queue->qdisc_sleeping);
1175:		spinlock_t *root_lock;
1176:	
1177:		root_lock = qdisc_lock(oqdisc);
1178:		spin_lock_bh(root_lock);
1179:	
1180:		/* ... and graft new one */
1181:		if (qdisc == NULL)
1182:			qdisc = &noop_qdisc;
1183:		rcu_assign_pointer(dev_queue->qdisc_sleeping, qdisc);
1184:		rcu_assign_pointer(dev_queue->qdisc, &noop_qdisc);
1185:	
1186:		spin_unlock_bh(root_lock);
1187:	
1188:		return oqdisc;
1189:	}
 SourceFile:net/sched/sch_generic.c]

461/4 2026/08/15 18:42 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 168844
							output: 39
							thoughts: 2090
						

Thoughts:
**A Deep Dive into the HTB/SFQ Race Condition**

I've been analyzing a rather tricky race condition involving the HTB (Hierarchical Token Bucket) and SFQ (Stochastic Fairness Queueing) queueing disciplines. The core of the problem lies in how the root queueing discipline is replaced, specifically the sequence of operations and the timing of SFQ's internal timer.

Here's how I see the sequence of events unfolding, leading to the bug:

My initial realization was that `dev_graft_qdisc`, the function responsible for replacing the root qdisc, doesn't actually *purge* the old queue. It simply swaps pointers, returning the old qdisc. The responsibility for cleaning up this old qdisc falls to `qdisc_put`.

Now, `qdisc_put` calls `__qdisc_destroy`. This is where things get critical. `__qdisc_destroy` first calls `qdisc_hash_del` to remove the qdisc from the global hash table, and *then* it calls the qdisc's `ops->destroy` method. For the old root HTB qdisc, this means its `destroy` method is called *before* its queue is emptied.

This is the crux of the problem: because the HTB queue isn't purged, its `q->tail` pointer remains non-NULL, indicating that there are still packets in the queue (or at least, the qdisc thinks so). If, at this precise moment, the SFQ's `sfq_perturbation` timer fires, it will subsequently call `sfq_rehash`.

And here's where the race manifests: `sfq_rehash` calls `qdisc_tree_reduce_backlog`. This function, in turn, attempts to look up the *parent* qdisc (which was the old HTB) in the hash table using `qdisc_lookup_rcu`. However, since `qdisc_hash_del` has already removed the old HTB from the hash, this lookup fails. The `WARN_ON_ONCE` macro then triggers, indicating the kernel assertion violation.

So, to reliably trigger this bug, the sequence would be:

1.  Establish an HTB queueing discipline as the root qdisc.
2.  Create a class within this HTB.
3.  Attach an SFQ queueing discipline to that class.
4.  Crucially, send enough packets to fill the SFQ queue, ensuring `q->tail` is non-NULL.
5.  Replace the root qdisc (e.g., with another HTB or even destroy it). This initiates the `dev_graft_qdisc` -> `qdisc_put` -> `__qdisc_destroy` -> `qdisc_hash_del` sequence.
6.  The window for the race is between `qdisc_hash_del(old_htb)` and the `sfq_perturbation` timer firing.

I've been pondering why a previously provided reproducer might have failed to hit this race. The window between `qdisc_hash_del(old_htb)` and `sfq_destroy` (which stops the timer) is extremely narrow. The probability of the timer firing precisely within this window is naturally low, especially since `perturb_period` is typically measured in seconds or jiffies, making it a relatively infrequent event.

It's possible the original reproducer didn't correctly set the `perturb_period`. If `perturb_period` is set to 0, the timer never fires, and thus the race condition can never be triggered. The fact that the original crash report shows `sfq_perturbation` firing (`sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618`) suggests the timer *was* active in the actual crash scenario.

To improve the chances of hitting this race, I've considered a few approaches:

*   **Increase HTB Class Count:** By creating a large number of classes within the HTB, the `htb_destroy` process would take longer, effectively widening the window between the parent HTB being removed from the hash and its full destruction.
*   **Minimize `perturb_period`:** Setting `perturb_period` to its minimum non-zero value (ideally 1 jiffy) would make the SFQ timer fire as frequently as possible, increasing the likelihood of it landing in the critical window.
*   **Multi-CPU Environment:** Running the qdisc replacement on one CPU while allowing the timer to fire on another would naturally introduce more timing variations and could help expose the race.

Ultimately, the core issue is the subtle timing dependency between the removal of a qdisc from the hash table and the subsequent actions of a timer associated with a nested queueing discipline. My understanding is that the `qdisc_tree_reduce_backlog` function expects to find its parent in the hash, and when it doesn't due to the premature destruction of the old parent, the `WARN_ON_ONCE` is triggered.


462/4 2026/08/15 18:43 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_root_sleeping]

Results:
map[SourceCode: 597:	static inline struct Qdisc *qdisc_root_sleeping(const struct Qdisc *qdisc)
 598:	{
 599:		return rcu_dereference_rtnl(qdisc->dev_queue->qdisc_sleeping);
 600:	}
 SourceFile:include/net/sch_generic.h]

463/4 2026/08/15 18:43 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 171058
							output: 33
							thoughts: 2026
						

Thoughts:
**My Thoughts on the `sfq_perturbation` Race Condition**

This is a truly insidious race condition I've uncovered, and it hinges on the precise timing of operations during qdisc destruction. Let me walk you through my thought process.

It all starts with `qdisc_root_sleeping(sch)`. I realized that this function, in the context of replacing a root qdisc, actually returns the *new* root qdisc. This is because `dev_graft_qdisc` has already updated `dev_queue->qdisc_sleeping` with the newly grafted root.

Now, here's where it gets interesting: `sfq_perturbation`, the timer function for SFQ, acquires a lock on this *new* root qdisc. It does this by calling `qdisc_lock(qdisc_root_sleeping(sch))` and then `spin_lock(root_lock)`. So, it successfully locks the *new* root.

Immediately after locking, `sfq_perturbation` calls `sfq_rehash(sch)`. This, in turn, invokes `qdisc_tree_reduce_backlog(sch, dropped, drop_len)`. This function is where the real problem lies.

Inside `qdisc_tree_reduce_backlog`, it iterates up the qdisc hierarchy using `sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid))`. The `parentid` here is the class ID of the *old* HTB class, for example, `1:1`. Consequently, `TC_H_MAJ(parentid)` resolves to `1:0`, which is the *old* HTB root qdisc.

Here's the critical flaw: By the time this is happening, `__qdisc_destroy` (which is called when the old root is being removed) has already executed `qdisc_hash_del(old_root)`. This means the *old* HTB qdisc has been removed from the qdisc hash table.

Therefore, when `qdisc_lookup_rcu` attempts to find the old HTB qdisc, it returns `NULL`. This then triggers the `WARN_ON_ONCE(parentid != TC_H_ROOT)` warning, and that's how I stumbled upon the bug.

It's a brilliant race condition, and I'm fascinated by its independence from CPU affinity. Whether the timer fires on the same CPU or a different one doesn't seem to matter. The fact that `sfq_perturbation` locks the *new* root qdisc is key; it doesn't get blocked waiting for the *old* root's lock, because `__qdisc_destroy` doesn't hold any qdisc locks during its execution. This allows the timer to run completely concurrently with the destruction process.

To reliably trigger this, I identified a specific sequence of events:
1. The SFQ timer must fire *exactly* after the old root qdisc has been removed from the hash (`qdisc_hash_del`) but *before* `sfq_destroy` has had a chance to cancel the timer.
2. To widen this critical window, I need to add a substantial number of classes to the *old* HTB qdisc. When `htb_destroy` is called, it has to iterate through and destroy all these classes. This process takes time.
3. If the SFQ timer is associated with one of the later classes in this large hierarchy, its timer will remain active for a considerable duration while `htb_destroy` is busy with the earlier classes.
4. During this extended window, the SFQ timer can fire, lock the new root, and execute `qdisc_tree_reduce_backlog`.
5. The attempt to look up the old HTB qdisc will fail because it's no longer in the hash, leading directly to the `WARN_ON_ONCE`.

Upon verifying the order of operations in `__qdisc_destroy`, I confirmed that `qdisc_hash_del` indeed precedes `ops->destroy` (which calls `htb_destroy`). This means the old HTB is removed from the hash *before* `htb_destroy` even begins its work of destroying child classes. If there are thousands of classes, `htb_destroy` will take a noticeable amount of time, creating that necessary window for the SFQ timer to race.

My analysis suggests that the previous reproducer failed because the race window wasn't sufficiently widened. Creating only 100 classes might not have been enough. Furthermore, to ensure the SFQ queue contains packets, I need to prevent them from being immediately dequeued. For the `lo` device, this means setting a very low rate on the HTB class (e.g., 8 bits per second) to make packets linger in the SFQ queue. The reproducer's attempt with a rate of 1000 might not have been low enough to guarantee packet persistence.

Additionally, the reproducer's failure could be due to the timer not firing at the precise moment. The `perturb_period` of the SFQ timer might be too long relative to the destruction window.

My conclusion is that the reproducer needs to:
*   Create a significantly larger number of HTB classes (e.g., 10,000) to prolong `htb_destroy`.
*   Set the `perturb_period` to its minimum value (1) to increase the timer's firing frequency.
*   Ensure packets are actually retained in the SFQ queue by configuring a very low rate on the parent HTB class.

This detailed breakdown gives me high confidence in the root cause of this race condition.


464/4 2026/08/15 18:43 tool grepper
0m Args:
map[Expression:qdisc_tree_reduce_backlog PathPrefix:net/sched/]

Results:
map[Output:net/sched/sch_api.c=759=static u32 qdisc_alloc_handle(struct net_device *dev)
--
net/sched/sch_api.c-775-
net/sched/sch_api.c:776:void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
net/sched/sch_api.c-777-{
--
net/sched/sch_api.c-813-}
net/sched/sch_api.c:814:EXPORT_SYMBOL(qdisc_tree_reduce_backlog);
net/sched/sch_api.c-815-
--
net/sched/sch_cake.c=1756=static s32 cake_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_cake.c-1835-
net/sched/sch_cake.c:1836:		qdisc_tree_reduce_backlog(sch, 1-numsegs, len-slen);
net/sched/sch_cake.c-1837-		consume_skb(skb);
--
net/sched/sch_cake.c-1857-
net/sched/sch_cake.c:1858:			qdisc_tree_reduce_backlog(sch, 1, ack_pkt_len);
net/sched/sch_cake.c-1859-			consume_skb(ack);
--
net/sched/sch_cake.c-1963-	if (same_flow) {
net/sched/sch_cake.c:1964:		qdisc_tree_reduce_backlog(sch, prev_qlen - 1,
net/sched/sch_cake.c-1965-					  prev_backlog - len);
--
net/sched/sch_cake.c-1967-	}
net/sched/sch_cake.c:1968:	qdisc_tree_reduce_backlog(sch, prev_qlen, prev_backlog);
net/sched/sch_cake.c-1969-	return NET_XMIT_SUCCESS;
--
net/sched/sch_cake.c=2007=static struct sk_buff *cake_dequeue(struct Qdisc *sch)
--
net/sched/sch_cake.c-2243-		WRITE_ONCE(b->tin_dropped, b->tin_dropped + 1);
net/sched/sch_cake.c:2244:		qdisc_tree_reduce_backlog(sch, 1, qdisc_pkt_len(skb));
net/sched/sch_cake.c-2245-		qdisc_qstats_drop(sch);
--
net/sched/sch_choke.c=113=static void choke_drop_by_idx(struct Qdisc *sch, unsigned int idx,
--
net/sched/sch_choke.c-127-	qdisc_qstats_backlog_dec(sch, skb);
net/sched/sch_choke.c:128:	qdisc_tree_reduce_backlog(sch, 1, qdisc_pkt_len(skb));
net/sched/sch_choke.c-129-	qdisc_drop(skb, sch, to_free);
--
net/sched/sch_choke.c=339=static int choke_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_choke.c-401-			}
net/sched/sch_choke.c:402:			qdisc_tree_reduce_backlog(sch, oqlen - sch->q.qlen, dropped);
net/sched/sch_choke.c-403-			q->head = 0;
--
net/sched/sch_codel.c=73=static void codel_dequeue_drop(struct Qdisc *sch)
--
net/sched/sch_codel.c-77-	if (q->stats.drop_count) {
net/sched/sch_codel.c:78:		qdisc_tree_reduce_backlog(sch, q->stats.drop_count,
net/sched/sch_codel.c-79-					  q->stats.drop_len);
--
net/sched/sch_codel.c=138=static int codel_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_codel.c-191-	}
net/sched/sch_codel.c:192:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_codel.c-193-
--
net/sched/sch_dualpi2.c=439=static int dualpi2_qdisc_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_dualpi2.c-494-			 */
net/sched/sch_dualpi2.c:495:			qdisc_tree_reduce_backlog(sch, 1 - cnt,
net/sched/sch_dualpi2.c-496-						  orig_len - byte_len);
--
net/sched/sch_dualpi2.c=610=static void dualpi2_dequeue_drop(struct Qdisc *sch)
--
net/sched/sch_dualpi2.c-614-	if (q->deferred_drops_cnt) {
net/sched/sch_dualpi2.c:615:		qdisc_tree_reduce_backlog(sch, q->deferred_drops_cnt,
net/sched/sch_dualpi2.c-616-					  q->deferred_drops_len);
--
net/sched/sch_dualpi2.c=791=static int dualpi2_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_dualpi2.c-936-	}
net/sched/sch_dualpi2.c:937:	qdisc_tree_reduce_backlog(sch, old_qlen - qdisc_qlen(sch),
net/sched/sch_dualpi2.c-938-				  old_backlog - sch->qstats.backlog);
--
net/sched/sch_fifo.c=38=static int pfifo_tail_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_fifo.c-54-
net/sched/sch_fifo.c:55:	qdisc_tree_reduce_backlog(sch, 0, prev_backlog - sch->qstats.backlog);
net/sched/sch_fifo.c-56-	return NET_XMIT_CN;
--
net/sched/sch_fq.c=1070=static int fq_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_fq.c-1205-	}
net/sched/sch_fq.c:1206:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_fq.c-1207-
--
net/sched/sch_fq_codel.c=185=static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_fq_codel.c-244-	if (ret == idx) {
net/sched/sch_fq_codel.c:245:		qdisc_tree_reduce_backlog(sch, prev_qlen - 1,
net/sched/sch_fq_codel.c-246-					  prev_backlog - pkt_len);
--
net/sched/sch_fq_codel.c-248-	}
net/sched/sch_fq_codel.c:249:	qdisc_tree_reduce_backlog(sch, prev_qlen, prev_backlog);
net/sched/sch_fq_codel.c-250-	return NET_XMIT_SUCCESS;
--
net/sched/sch_fq_codel.c=324=static void fq_codel_dequeue_drop(struct Qdisc *sch)
--
net/sched/sch_fq_codel.c-328-	if (q->cstats.drop_count) {
net/sched/sch_fq_codel.c:329:		qdisc_tree_reduce_backlog(sch, q->cstats.drop_count,
net/sched/sch_fq_codel.c-330-					  q->cstats.drop_len);
--
net/sched/sch_fq_codel.c=405=static int fq_codel_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_fq_codel.c-492-	}
net/sched/sch_fq_codel.c:493:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_fq_codel.c-494-
--
net/sched/sch_fq_pie.c=287=static int fq_pie_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_fq_pie.c-376-	}
net/sched/sch_fq_pie.c:377:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_fq_pie.c-378-
--
net/sched/sch_hhf.c=372=static int hhf_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_hhf.c-415-	/* As we dropped a packet, better let upper stack know this. */
net/sched/sch_hhf.c:416:	qdisc_tree_reduce_backlog(sch, 1, prev_backlog - sch->qstats.backlog);
net/sched/sch_hhf.c-417-	return NET_XMIT_SUCCESS;
--
net/sched/sch_hhf.c=537=static int hhf_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_hhf.c-602-	}
net/sched/sch_hhf.c:603:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_hhf.c-604-
--
net/sched/sch_netem.c=459=static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_netem.c-671-		/* Parent qdiscs accounted for 1 skb of size @prev_len */
net/sched/sch_netem.c:672:		qdisc_tree_reduce_backlog(sch, -(nb - 1), -(len - prev_len));
net/sched/sch_netem.c-673-	} else if (!skb) {
--
net/sched/sch_netem.c=729=static struct sk_buff *netem_dequeue(struct Qdisc *sch)
--
net/sched/sch_netem.c-781-					qdisc_qlen_dec(sch);
net/sched/sch_netem.c:782:					qdisc_tree_reduce_backlog(sch, 1, pkt_len);
net/sched/sch_netem.c-783-				}
--
net/sched/sch_pie.c=141=static int pie_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_pie.c-205-	}
net/sched/sch_pie.c:206:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_pie.c-207-
--
net/sched/sch_sfq.c=344=sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)
--
net/sched/sch_sfq.c-434-		slot_queue_add(slot, skb);
net/sched/sch_sfq.c:435:		qdisc_tree_reduce_backlog(sch, 0, delta);
net/sched/sch_sfq.c-436-		return NET_XMIT_CN;
--
net/sched/sch_sfq.c-468-	if (qlen != slot->qlen) {
net/sched/sch_sfq.c:469:		qdisc_tree_reduce_backlog(sch, 0, dropped - qdisc_pkt_len(skb));
net/sched/sch_sfq.c-470-		return NET_XMIT_CN;
--
net/sched/sch_sfq.c-473-	/* As we dropped a packet, better let upper stack know this */
net/sched/sch_sfq.c:474:	qdisc_tree_reduce_backlog(sch, 1, dropped);
net/sched/sch_sfq.c-475-	return NET_XMIT_SUCCESS;
--
net/sched/sch_sfq.c=534=static void sfq_rehash(struct Qdisc *sch)
--
net/sched/sch_sfq.c-600-	WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
net/sched/sch_sfq.c:601:	qdisc_tree_reduce_backlog(sch, dropped, drop_len);
net/sched/sch_sfq.c-602-}
--
net/sched/sch_sfq.c=630=static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_sfq.c-742-	rtnl_kfree_skbs(to_free, tail);
net/sched/sch_sfq.c:743:	qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
net/sched/sch_sfq.c-744-
--
net/sched/sch_taprio.c=582=static int taprio_enqueue_segmented(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_taprio.c-617-	if (numsegs > 1)
net/sched/sch_taprio.c:618:		qdisc_tree_reduce_backlog(sch, 1 - numsegs, len - slen);
net/sched/sch_taprio.c-619-	consume_skb(skb);
--
net/sched/sch_tbf.c=210=static int tbf_segment(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_tbf.c-241-	if (nb > 0) {
net/sched/sch_tbf.c:242:		qdisc_tree_reduce_backlog(sch, 1 - nb, prev_len - len);
net/sched/sch_tbf.c-243-		consume_skb(skb);
]

465/4 2026/08/15 18:43 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 176994
							output: 767
							thoughts: 1195
						

Thoughts:
**My Thoughts on the "net: sched: fix qdisc_tree_reduce_backlog() warning" Bug**

I've been looking into this "net: sched: fix qdisc_tree_reduce_backlog() warning" bug. Initially, I found myself questioning how it was fixed if it's already marked as fixed. My mind immediately went to the possibility of checking `sch->flags & TCQ_F_NOPARENT`. However, I recalled that `qdisc_tree_reduce_backlog` already contains a check for this exact condition: `if (sch->flags & TCQ_F_NOPARENT) break;`. This led me to ponder if `TCQ_F_NOPARENT` isn't being set correctly when a parent qdisc is destroyed.

Then, a deeper question arose: when a qdisc is destroyed, does it propagate the `TCQ_F_NOPARENT` flag to its children? My understanding is no, it simply destroys them. This left me searching for the actual fix.

I considered whether the solution might involve using `rcu_read_lock` and then checking if `qdisc_lookup_rcu` returns NULL. If it does return NULL, the idea was to simply break out of the loop instead of triggering a warning. This line of thought then branched into considering the implications: if the parent is destroyed, it's expected that it wouldn't be found in the hash. However, the more crucial point emerged: if the parent is gone, we shouldn't even be attempting to update its backlog! Therefore, if `qdisc_lookup_rcu` returns NULL, breaking is indeed the correct behavior.

The `WARN_ON_ONCE(parentid != TC_H_ROOT)` warning was specifically introduced to catch situations where the parent is unexpectedly missing. If the parent is missing precisely because it's being destroyed, that's a known race condition. So, the real puzzle was how this specific race was being addressed.

I then explored the possibility of the fix involving stopping the timer *before* `qdisc_hash_del` is called. My internal monologue concluded this wasn't the case, as `qdisc_hash_del` is called within `__qdisc_destroy` for the parent, and the child's timer is stopped in the child's own `ops->destroy` function. To achieve the desired timing of stopping the timer *before* `qdisc_hash_del` on the parent, the child's `ops->destroy` would need to be invoked before `qdisc_hash_del` on the parent. However, the current sequence has `qdisc_hash_del` on the parent occurring first.

Despite these deep dives into the mechanics, I can now confidently say I have a complete grasp of the bug's nature and, crucially, why the provided reproducer failed to trigger the warning. This understanding allows me to proceed with formulating the feedback.

Regarding the **Technical Diagnosis** that follows, my analysis aligns with the description. The bug is indeed a race condition occurring during the destruction of a parent qdisc (like HTB) and the `sfq_perturbation` timer of its child SFQ qdisc.

1.  When a parent qdisc is replaced or the network namespace is destroyed, `qdisc_put()` initiates `__qdisc_destroy()`.
2.  `__qdisc_destroy()` first removes the parent from the qdisc hash via `qdisc_hash_del()`.
3.  Subsequently, it calls the parent's `ops->destroy()` (e.g., `htb_destroy`), which then iterates through classes and destroys their children. For an SFQ child, this leads to `sfq_destroy()` and importantly, `timer_delete_sync()` to stop the `sfq_perturbation` timer.
4.  The race occurs if the `sfq_perturbation` timer fires *after* the parent qdisc has been removed from the hash (step 2) but *before* the timer is synchronously canceled (step 3). When this happens, `sfq_rehash()` is invoked.
5.  `sfq_rehash()` then calls `qdisc_tree_reduce_backlog()`. This function attempts to find the parent HTB qdisc using `qdisc_lookup_rcu()`.
6.  Since the parent qdisc was already removed from the hash in step 2, the lookup fails, leading to the `WARN_ON_ONCE(parentid != TC_H_ROOT)` warning.

My understanding of **Why the reproducer failed** also aligns perfectly with the provided explanation. The narrowness of the race window is the primary culprit. With only 100 HTB classes, `htb_destroy()` completes very rapidly, making it exceedingly difficult for the timer to fire during that fleeting interval. Furthermore, `sfq_rehash()` has a prerequisite: `q->tail != NULL`. If packets are dequeued too quickly, the SFQ queue might be empty when the timer fires, preventing the buggy code path from being reached.

Finally, my thoughts on **How to improve the reproducer** mirror the suggestions:
1.  **Widen the race window:** Increasing the number of HTB classes significantly (e.g., to 10,000) and placing the SFQ qdisc on a later class would force `htb_destroy()` to iterate for a much longer duration, thereby widening the window.
2.  **Ensure the queue is not empty:** Setting a very low rate for the HTB class would ensure that injected packets linger in the SFQ queue, guaranteeing `q->tail != NULL`.
3.  **Maximize timer frequency:** Minimizing the SFQ `perturb` parameter would increase the likelihood of the timer firing within the critical window.
4.  **Concurrency:** Running the qdisc replacement in a tight loop on one CPU while allowing the timer to operate on another CPU is a sound strategy for exacerbating race conditions.


466/4 2026/08/15 18:44 tool set-results
0m Args:
map[Feedback:The reproducer failed to trigger the warning because it attempts to hit a very narrow race condition window, and the current reproducer logic does not widen this window sufficiently or coordinate the timing well enough.

**Technical Diagnosis:**
The bug is a race condition between the destruction of a parent qdisc (e.g., HTB) and the `sfq_perturbation` timer of its child SFQ qdisc.
1. When the root HTB qdisc is replaced or the network namespace is destroyed, `qdisc_put()` is called on the root qdisc, which invokes `__qdisc_destroy()`.
2. `__qdisc_destroy()` first removes the HTB qdisc from the global qdisc hash via `qdisc_hash_del()`.
3. It then calls `ops->destroy()` (`htb_destroy`), which iterates over all HTB classes and destroys their child qdiscs. For SFQ, this eventually calls `sfq_destroy()`, which stops the `sfq_perturbation` timer via `timer_delete_sync()`.
4. If the `sfq_perturbation` timer fires *after* the HTB qdisc is removed from the hash (step 2) but *before* the timer is synchronously canceled (step 3), it will execute `sfq_rehash()`.
5. `sfq_rehash()` calls `qdisc_tree_reduce_backlog()`, which attempts to look up the parent HTB qdisc using `qdisc_lookup_rcu()`.
6. Since the HTB qdisc was already removed from the hash, the lookup fails, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

**Why the reproducer failed:**
The window between `qdisc_hash_del()` and `timer_delete_sync()` is extremely small. The reproducer creates only 100 HTB classes, which means `htb_destroy()` finishes very quickly, making the race window too narrow to reliably hit with a timer that fires at most once per jiffy. Furthermore, `sfq_rehash()` is only called if `q->tail != NULL` (i.e., the SFQ queue is not empty). If packets are dequeued too quickly by the loopback device, the queue will be empty when the timer fires, and the buggy path won't be reached.

**How to improve the reproducer:**
1. **Widen the race window:** Create a much larger number of HTB classes (e.g., 10,000) and attach the SFQ qdisc to one of the last classes. This will force `htb_destroy()` to spend a significant amount of time iterating over classes before it reaches the SFQ qdisc and cancels its timer.
2. **Ensure the queue is not empty:** Set the HTB class rate to an extremely low value (e.g., 8 bps) so that injected packets remain queued in the SFQ qdisc for a long time, ensuring `q->tail != NULL` when the timer fires.
3. **Maximize timer frequency:** Ensure the SFQ `perturb` parameter is set to the minimum possible non-zero value (1 second) to increase the chance of the timer firing during the window.
4. **Concurrency:** Run the qdisc replacement (`tc qdisc replace ...`) in a tight loop on one CPU while the timer is allowed to fire on another CPU. ProbePassed:false TerminalError: TitleMatches:false]

Results:
map[Feedback:The reproducer failed to trigger the warning because it attempts to hit a very narrow race condition window, and the current reproducer logic does not widen this window sufficiently or coordinate the timing well enough.

**Technical Diagnosis:**
The bug is a race condition between the destruction of a parent qdisc (e.g., HTB) and the `sfq_perturbation` timer of its child SFQ qdisc.
1. When the root HTB qdisc is replaced or the network namespace is destroyed, `qdisc_put()` is called on the root qdisc, which invokes `__qdisc_destroy()`.
2. `__qdisc_destroy()` first removes the HTB qdisc from the global qdisc hash via `qdisc_hash_del()`.
3. It then calls `ops->destroy()` (`htb_destroy`), which iterates over all HTB classes and destroys their child qdiscs. For SFQ, this eventually calls `sfq_destroy()`, which stops the `sfq_perturbation` timer via `timer_delete_sync()`.
4. If the `sfq_perturbation` timer fires *after* the HTB qdisc is removed from the hash (step 2) but *before* the timer is synchronously canceled (step 3), it will execute `sfq_rehash()`.
5. `sfq_rehash()` calls `qdisc_tree_reduce_backlog()`, which attempts to look up the parent HTB qdisc using `qdisc_lookup_rcu()`.
6. Since the HTB qdisc was already removed from the hash, the lookup fails, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

**Why the reproducer failed:**
The window between `qdisc_hash_del()` and `timer_delete_sync()` is extremely small. The reproducer creates only 100 HTB classes, which means `htb_destroy()` finishes very quickly, making the race window too narrow to reliably hit with a timer that fires at most once per jiffy. Furthermore, `sfq_rehash()` is only called if `q->tail != NULL` (i.e., the SFQ queue is not empty). If packets are dequeued too quickly by the loopback device, the queue will be empty when the timer fires, and the buggy path won't be reached.

**How to improve the reproducer:**
1. **Widen the race window:** Create a much larger number of HTB classes (e.g., 10,000) and attach the SFQ qdisc to one of the last classes. This will force `htb_destroy()` to spend a significant amount of time iterating over classes before it reaches the SFQ qdisc and cancels its timer.
2. **Ensure the queue is not empty:** Set the HTB class rate to an extremely low value (e.g., 8 bps) so that injected packets remain queued in the SFQ qdisc for a long time, ensuring `q->tail != NULL` when the timer fires.
3. **Maximize timer frequency:** Ensure the SFQ `perturb` parameter is set to the minimum possible non-zero value (1 second) to increase the chance of the timer firing during the window.
4. **Concurrency:** Run the qdisc replacement (`tc qdisc replace ...`) in a tight loop on one CPU while the timer is allowed to fire on another CPU. ProbePassed:false TerminalError: TitleMatches:false]

467/3 2026/08/15 18:44 action loop-controller
0m Results:
map[CapabilitiesVerified:true ContinueSignal:continue EquivalenceAnalysis: OracleFeedback:The reproducer failed to trigger the warning because it attempts to hit a very narrow race condition window, and the current reproducer logic does not widen this window sufficiently or coordinate the timing well enough.

**Technical Diagnosis:**
The bug is a race condition between the destruction of a parent qdisc (e.g., HTB) and the `sfq_perturbation` timer of its child SFQ qdisc.
1. When the root HTB qdisc is replaced or the network namespace is destroyed, `qdisc_put()` is called on the root qdisc, which invokes `__qdisc_destroy()`.
2. `__qdisc_destroy()` first removes the HTB qdisc from the global qdisc hash via `qdisc_hash_del()`.
3. It then calls `ops->destroy()` (`htb_destroy`), which iterates over all HTB classes and destroys their child qdiscs. For SFQ, this eventually calls `sfq_destroy()`, which stops the `sfq_perturbation` timer via `timer_delete_sync()`.
4. If the `sfq_perturbation` timer fires *after* the HTB qdisc is removed from the hash (step 2) but *before* the timer is synchronously canceled (step 3), it will execute `sfq_rehash()`.
5. `sfq_rehash()` calls `qdisc_tree_reduce_backlog()`, which attempts to look up the parent HTB qdisc using `qdisc_lookup_rcu()`.
6. Since the HTB qdisc was already removed from the hash, the lookup fails, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

**Why the reproducer failed:**
The window between `qdisc_hash_del()` and `timer_delete_sync()` is extremely small. The reproducer creates only 100 HTB classes, which means `htb_destroy()` finishes very quickly, making the race window too narrow to reliably hit with a timer that fires at most once per jiffy. Furthermore, `sfq_rehash()` is only called if `q->tail != NULL` (i.e., the SFQ queue is not empty). If packets are dequeued too quickly by the loopback device, the queue will be empty when the timer fires, and the buggy path won't be reached.

**How to improve the reproducer:**
1. **Widen the race window:** Create a much larger number of HTB classes (e.g., 10,000) and attach the SFQ qdisc to one of the last classes. This will force `htb_destroy()` to spend a significant amount of time iterating over classes before it reaches the SFQ qdisc and cancels its timer.
2. **Ensure the queue is not empty:** Set the HTB class rate to an extremely low value (e.g., 8 bps) so that injected packets remain queued in the SFQ qdisc for a long time, ensuring `q->tail != NULL` when the timer fires.
3. **Maximize timer frequency:** Ensure the SFQ `perturb` parameter is set to the minimum possible non-zero value (1 second) to increase the chance of the timer firing during the window.
4. **Concurrency:** Run the qdisc replacement (`tc qdisc replace ...`) in a tight loop on one CPU while the timer is allowed to fire on another CPU. ReproC: Reproduced:false ReproducedBugTitle: ReproducedCrashReport:]

468/2 2026/08/15 18:44 iteration 4
26m
469/3 2026/08/15 18:44 action If
3m Args:
map[OracleFeedback:The reproducer failed to trigger the warning because it attempts to hit a very narrow race condition window, and the current reproducer logic does not widen this window sufficiently or coordinate the timing well enough.

**Technical Diagnosis:**
The bug is a race condition between the destruction of a parent qdisc (e.g., HTB) and the `sfq_perturbation` timer of its child SFQ qdisc.
1. When the root HTB qdisc is replaced or the network namespace is destroyed, `qdisc_put()` is called on the root qdisc, which invokes `__qdisc_destroy()`.
2. `__qdisc_destroy()` first removes the HTB qdisc from the global qdisc hash via `qdisc_hash_del()`.
3. It then calls `ops->destroy()` (`htb_destroy`), which iterates over all HTB classes and destroys their child qdiscs. For SFQ, this eventually calls `sfq_destroy()`, which stops the `sfq_perturbation` timer via `timer_delete_sync()`.
4. If the `sfq_perturbation` timer fires *after* the HTB qdisc is removed from the hash (step 2) but *before* the timer is synchronously canceled (step 3), it will execute `sfq_rehash()`.
5. `sfq_rehash()` calls `qdisc_tree_reduce_backlog()`, which attempts to look up the parent HTB qdisc using `qdisc_lookup_rcu()`.
6. Since the HTB qdisc was already removed from the hash, the lookup fails, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

**Why the reproducer failed:**
The window between `qdisc_hash_del()` and `timer_delete_sync()` is extremely small. The reproducer creates only 100 HTB classes, which means `htb_destroy()` finishes very quickly, making the race window too narrow to reliably hit with a timer that fires at most once per jiffy. Furthermore, `sfq_rehash()` is only called if `q->tail != NULL` (i.e., the SFQ queue is not empty). If packets are dequeued too quickly by the loopback device, the queue will be empty when the timer fires, and the buggy path won't be reached.

**How to improve the reproducer:**
1. **Widen the race window:** Create a much larger number of HTB classes (e.g., 10,000) and attach the SFQ qdisc to one of the last classes. This will force `htb_destroy()` to spend a significant amount of time iterating over classes before it reaches the SFQ qdisc and cancels its timer.
2. **Ensure the queue is not empty:** Set the HTB class rate to an extremely low value (e.g., 8 bps) so that injected packets remain queued in the SFQ qdisc for a long time, ensuring `q->tail != NULL` when the timer fires.
3. **Maximize timer frequency:** Ensure the SFQ `perturb` parameter is set to the minimum possible non-zero value (1 second) to increase the chance of the timer firing during the window.
4. **Concurrency:** Run the qdisc replacement (`tc qdisc replace ...`) in a tight loop on one CPU while the timer is allowed to fire on another CPU.]

470/4 2026/08/15 18:44 agent strategy-refiner
3m Model:
best-expensive

Instruction:
You are an expert in Linux kernel debugging.
Refine the reproduction strategy based on feedback from previous attempts.
Analyze the technical diagnosis provided in the oracle feedback and translate it into concrete,
step-by-step instructions for the repro-generator on how to modify the code structure, alignments,
offsets, or parameters of the candidate program.

=== TOOL SELECTION GUIDELINES ===
- Prefer codesearch-definition-source and codesearch-struct-layout first for symbol lookups.
- Fall back to read-file or grepper for macros, headers, or if symbol lookup fails.

=== CRITICAL PROHIBITIONS ===
- Do NOT repeat searches for the same symbols or files. Use information you have already gathered.
- Do NOT write long explanations. Keep your reasoning short and focused on actionable changes.
- Do NOT assume a bug is fixed based on git commit history.
- If you are stuck, try a different approach or proceed to generate a candidate reproducer.
Prefer calling several tools at the same time to save round-trips.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Current Strategy: An analysis of the feedback and the kernel source code confirms that the race condition occurs between the destruction of the HTB root qdisc and the asynchronous perturbation timer of an SFQ child qdisc.

To trigger this reliably, we must ensure that:
1. **The race window is wide enough:** We can achieve this by adding a large number of classes (e.g., 100) to the HTB root qdisc. When the root is deleted, `htb_destroy()` will take a significant amount of time to iterate through and destroy all these classes.
2. **The SFQ queues are not empty:** The `sfq_perturbation()` timer callback only calls `sfq_rehash()` (which triggers the bug) if there are packets in the queue (`q->tail != NULL`). We must enqueue packets to each SFQ qdisc. By setting the HTB class rate to a very low value (e.g., `8bit`) and sending multiple packets, we guarantee they remain queued.
3. **The timing is perfectly aligned:** The SFQ timers are set to fire exactly 1 second after they are added. Since adding 100 classes takes some time, the timers will fire sequentially over a window of time. We measure the time it takes to set up the qdiscs and calculate the exact moment to delete the root qdisc so that `htb_destroy()` executes exactly in the middle of this window, guaranteeing a massive overlap.
4. **Fast and precise deletion:** Using `system("tc qdisc del ...")` introduces unpredictable delays due to `fork()` and `exec()`. We use a raw netlink socket to send the `RTM_DELQDISC` command directly, which is instantaneous and synchronous.

Here is the complete and standalone C reproducer:

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 100

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    // Create and bring up a dummy interface
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    delete_qdisc(ifindex);
    
    while (1) {
        char batch_file[64];
        sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 100 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            // Rate is extremely low (8bit) to ensure packets stay in the queue
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to each class to ensure the SFQ queues are not empty
        char pkt[100] = {0};
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 5; p++) {
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // They were armed sequentially during the tc -batch execution.
        // We sleep for 1 second minus the time it took to setup, plus a random jitter
        // to wake up exactly when the timers are firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = 0;
            if (elapsed_us > 0) {
                jitter = rand_r(&seed) % (elapsed_us / 2 + 1);
            }
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    // Ensure tc is available
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    // Isolate network and user namespaces
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    // Write mapping for root to gain necessary capabilities in the new namespace
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getuid());
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", getgid());
        fclose(f);
    }
    
    system("ip link set lo up");

    // Run 2 concurrent threads to increase the likelihood of hitting the race
    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```
Feedback: The reproducer failed to trigger the warning because it attempts to hit a very narrow race condition window, and the current reproducer logic does not widen this window sufficiently or coordinate the timing well enough.

**Technical Diagnosis:**
The bug is a race condition between the destruction of a parent qdisc (e.g., HTB) and the `sfq_perturbation` timer of its child SFQ qdisc.
1. When the root HTB qdisc is replaced or the network namespace is destroyed, `qdisc_put()` is called on the root qdisc, which invokes `__qdisc_destroy()`.
2. `__qdisc_destroy()` first removes the HTB qdisc from the global qdisc hash via `qdisc_hash_del()`.
3. It then calls `ops->destroy()` (`htb_destroy`), which iterates over all HTB classes and destroys their child qdiscs. For SFQ, this eventually calls `sfq_destroy()`, which stops the `sfq_perturbation` timer via `timer_delete_sync()`.
4. If the `sfq_perturbation` timer fires *after* the HTB qdisc is removed from the hash (step 2) but *before* the timer is synchronously canceled (step 3), it will execute `sfq_rehash()`.
5. `sfq_rehash()` calls `qdisc_tree_reduce_backlog()`, which attempts to look up the parent HTB qdisc using `qdisc_lookup_rcu()`.
6. Since the HTB qdisc was already removed from the hash, the lookup fails, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

**Why the reproducer failed:**
The window between `qdisc_hash_del()` and `timer_delete_sync()` is extremely small. The reproducer creates only 100 HTB classes, which means `htb_destroy()` finishes very quickly, making the race window too narrow to reliably hit with a timer that fires at most once per jiffy. Furthermore, `sfq_rehash()` is only called if `q->tail != NULL` (i.e., the SFQ queue is not empty). If packets are dequeued too quickly by the loopback device, the queue will be empty when the timer fires, and the buggy path won't be reached.

**How to improve the reproducer:**
1. **Widen the race window:** Create a much larger number of HTB classes (e.g., 10,000) and attach the SFQ qdisc to one of the last classes. This will force `htb_destroy()` to spend a significant amount of time iterating over classes before it reaches the SFQ qdisc and cancels its timer.
2. **Ensure the queue is not empty:** Set the HTB class rate to an extremely low value (e.g., 8 bps) so that injected packets remain queued in the SFQ qdisc for a long time, ensuring `q->tail != NULL` when the timer fires.
3. **Maximize timer frequency:** Ensure the SFQ `perturb` parameter is set to the minimum possible non-zero value (1 second) to increase the chance of the timer firing during the window.
4. **Concurrency:** Run the qdisc replacement (`tc qdisc replace ...`) in a tight loop on one CPU while the timer is allowed to fire on another CPU.

Reply:
An analysis of the kernel source code reveals why the previous reproducer failed and exactly what is needed to trigger the bug.

### Technical Diagnosis
The race condition occurs when `sfq_perturbation` fires, calls `sfq_rehash`, and `sfq_rehash` calls `qdisc_tree_reduce_backlog`. However, `sfq_rehash` **only** calls `qdisc_tree_reduce_backlog` if re-enqueueing a packet fails (i.e., `sfq_enqueue` returns something other than `NET_XMIT_SUCCESS`). 

In the previous reproducer, we sent identical packets. Because the total number of packets was below the queue limit, `sfq_enqueue` always succeeded during rehash, meaning `qdisc_tree_reduce_backlog` was **never called**, completely missing the buggy code path.

To force `sfq_enqueue` to fail during rehash, we must:
1. Set the SFQ `depth` parameter to `1`. This restricts each internal flow bucket to a maximum of 1 packet.
2. Send multiple valid IP/UDP packets with **varying source ports** to the same SFQ qdisc. Initially, they will hash to different flow buckets and be successfully queued.
3. When the `perturb` timer fires, `sfq_rehash` changes the hash perturbation seed and re-enqueues the packets. Because of the new seed, some packets will inevitably collide into the same flow bucket.
4. Since `depth` is 1, the collision causes `sfq_enqueue` to drop the packet and return `NET_XMIT_DROP`. This forces `sfq_rehash` to call `qdisc_tree_reduce_backlog`, triggering the bug.

Additionally, to ensure the timer fires exactly during the destruction window, we increase the number of HTB classes to 5000 (widening the destruction window) and use a carefully calculated sleep with jitter to overlap the synchronous `RTM_DELQDISC` perfectly with the timers firing.

### C Reproducer

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 5000

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    delete_qdisc(ifindex);
    
    char batch_file[64];
    sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
    
    while (1) {
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 5000 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            // CRITICAL: depth 1 forces sfq_enqueue to drop packets during rehash if they collide
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1 limit 127 depth 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to the last 200 classes to ensure the SFQ queues are not empty
        char pkt[64] = {0};
        struct ethhdr *eth = (struct ethhdr *)pkt;
        struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
        struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

        eth->h_proto = htons(ETH_P_IP);
        ip->version = 4;
        ip->ihl = 5;
        ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
        ip->protocol = IPPROTO_UDP;
        ip->saddr = htonl(0x01020304);
        ip->daddr = htonl(0x05060708);
        udp->len = htons(sizeof(struct udphdr));

        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 50; p++) {
                udp->source = htons(p); // Vary source port to change hash and avoid initial collisions
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // We sleep for 1 second minus the setup time, plus a random jitter up to 200ms
        // so that delete_qdisc overlaps perfectly with the timers firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 200000;
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getuid()); fclose(f); }
    f = fopen("/proc/self/setgroups", "w");
    if (f) { fprintf(f, "deny\n"); fclose(f); }
    f = fopen("/proc/self/gid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getgid()); fclose(f); }
    
    system("ip link set lo up");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```

471/5 2026/08/15 18:44 llm strategy-refiner
1m Model:
gemini-3.1-pro-preview

Tokens:
							input: 6671
							output: 38
							thoughts: 13405
						

Thoughts:
**My Thoughts on Improving the Race Condition Reproducer**

I've been thinking about how to make our race condition reproducer more robust, specifically in the context of `qdisc_tree_reduce_backlog`. The race I'm targeting is between `qdisc_destroy` and a `sfq_perturbation` timer. The core issue arises if the timer fires after the parent qdisc has been removed from its hash table but before the timer's cancellation completes. This leads to `qdisc_lookup_rcu` failing, which triggers a warning.

The feedback I've received suggests several strategies to widen this race window:

1.  **Increase the number of HTB classes:** The idea is to create a significantly larger number of classes, like 10,000, and attach our SFQ qdisc to one of the later ones. This increases the time `qdisc_destroy` takes and, consequently, the window during which a timer could fire.

2.  **Ensure queues are not empty:** By setting an extremely low rate for HTB classes (e.g., 8 bps), I can guarantee that packets sent will linger in the SFQ queues, ensuring `q->tail` is not NULL when the timer fires.

3.  **Maximize timer frequency:** Setting `perturb 1` means the SFQ timer will fire quite frequently.

4.  **Simulate concurrency:** Running qdisc replacement in a tight loop is crucial to increase the chances of the race condition occurring.

I've been refining the C code to implement these ideas. Initially, I considered creating 10,000 classes directly via `tc` batch commands. However, I realized that creating them repeatedly in a tight loop might take too long. Replacing the root qdisc also destroys the entire tree, forcing recreation.

Then, I had a thought: if I use `tc qdisc replace dev dummy0 root handle 1: htb default 1`, it *does* destroy the old tree and create a new one, but that means recreating all 10,000 classes each time. This is still too slow for a tight loop. I briefly considered BPF, but decided against it to keep the solution focused on the core issue.

The key insight came from realizing that `tc -batch` is quite fast. Even with 10,000 classes (which translates to about 20,000 lines in the batch file), it should only take a few hundred milliseconds. To speed things up even further, I considered using raw netlink directly in C to create the classes, but ultimately decided that `tc -batch` with a sufficient number of classes would suffice and simplify the implementation.

A crucial timing consideration emerged: if creating 10,000 classes takes, say, 1 second, the timer for the *first* SFQ qdisc (armed 1 second after creation) might fire *while* I'm still creating classes. To avoid this, I planned to attach the SFQ qdisc to the *last* class created, or, even better, to *all* classes. Attaching SFQ to all 10,000 classes means 10,000 timers, significantly increasing the probability of *any* timer firing during the destruction window.

When `qdisc_destroy` (triggered by deleting the root qdisc) runs, it iterates over all classes and destroys them. With 10,000 classes, this destruction process itself takes time, and during this time, it's highly likely that some of the 10,000 timers will fire.

I started drafting the C code, focusing on generating the `tc -batch` file. I considered a loop creating 5000 classes:

```c
        FILE *bf = fopen(batch_file, "w");
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= 5000; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1\n", ifname, c, c + 1);
        }
        fclose(bf);
```

I double-checked the `handle` field for uniqueness and validity, and confirmed that `c + 1` would remain within the 16-bit range. I chose 5000 classes as a balance between widening the race window and keeping setup time manageable.

The timing of the operations became critical. If `tc -batch` takes 200ms, and the timers fire exactly 1 second after being armed (1000ms), then if I sleep for approximately 800ms (1000ms - 200ms) before deleting the root qdisc, the timers should start firing right as deletion begins.

My reasoning evolved: if I have 5000 SFQ qdiscs, their timers will fire sequentially over the 200ms setup window (starting 1000ms after their respective creation). So, if I start deleting the root qdisc 1 second after the *start* of the setup, the deletion will take some time and overlap with the timers firing. This is exactly the scenario I want to trigger the race.

I then outlined the main loop structure:

```c
    while (1) {
        // Generate batch file
        // ...
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // Enqueue packets
        for (int c = 1; c <= 5000; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        // Delete root qdisc
        delete_qdisc(ifindex);
    }
```

A critical refinement involved the sleep time. If `tc -batch` takes longer than 1 second, `sleep_us` becomes negative, and we don't sleep. This could mean the timers fire before `qdisc_hash_del` occurs, thus not triggering the race. To address this, I considered using a smaller number of classes (e.g., 2000) and carefully measuring the `tc -batch` duration.

However, the feedback emphasizes attaching SFQ to *all* classes for maximum timer density. This implies 10,000 timers, increasing the chance of a hit. The destruction process itself, `htb_destroy`, will take longer when called on 10,000 classes.

I then analyzed the timing of the race:
`qdisc_hash_del(root_qdisc)` happens first.
Then `htb_destroy` iterates.
For each class, `sfq_destroy` calls `timer_delete_sync`.

The race occurs if a timer for class N fires *after* `qdisc_hash_del` but *before* `htb_destroy` has finished destroying class N. This failure causes `sfq_rehash` (called by the timer) to invoke `qdisc_tree_reduce_backlog`, which then fails to find the root qdisc in the hash and triggers the `WARN_ON_ONCE`.

To maximize the chances of this, I decided to start the deletion process just *before* the timers are expected to fire, specifically around the 1-second mark. A key insight was that the destruction process for all classes takes some time. If the deletion starts *after* the first timers begin firing (around T=1000ms) but *before* all classes are destroyed, the timers will fire while `htb_destroy` is still running. This creates a perfect overlap.

I refined the sleep logic to incorporate a random jitter. The idea is to sleep for slightly less than 1 second (minus the setup time) and then add a random offset. This ensures that the `delete_qdisc` call starts at some point between T=1000ms and T=1000ms + setup_time/2. This random start point covers the critical window where timers are firing and `htb_destroy` is active, guaranteeing that the race condition will eventually be hit.

```c
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = 0;
            if (elapsed_us > 0) {
                jitter = rand_r(&seed) % elapsed_us;
            }
            usleep(sleep_us + jitter / 2);
        }
```

Finally, I considered the packet sending. By setting the HTB class rate to `8bit`, I ensure that packets, once enqueued, will stay in the SFQ queues for an extended period, satisfying the `q->tail != NULL` condition for the `sfq_perturbation` timer. The use of `SO_PRIORITY` with the class ID `0x10000 | c` is a direct and efficient way to classify packets into the corresponding HTB classes.

My current implementation uses 5000 classes, `tc -batch` for setup, `SO_PRIORITY` for packet classification, and a randomized sleep to hit the critical timing window. I'm confident this setup significantly increases the likelihood of reproducing the race condition.


472/5 2026/08/15 18:45 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_enqueue]

Results:
map[SourceCode: 343:	static int
 344:	sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)
 345:	{
 346:		struct sfq_sched_data *q = qdisc_priv(sch);
 347:		unsigned int hash, dropped;
 348:		sfq_index x, qlen;
 349:		struct sfq_slot *slot;
 350:		int ret;
 351:		struct sk_buff *head;
 352:		int delta;
 353:	
 354:		hash = sfq_classify(skb, sch, &ret);
 355:		if (hash == 0) {
 356:			if (ret & __NET_XMIT_BYPASS)
 357:				qdisc_qstats_drop(sch);
 358:			__qdisc_drop(skb, to_free);
 359:			return ret;
 360:		}
 361:		hash--;
 362:	
 363:		x = q->ht[hash];
 364:		slot = &q->slots[x];
 365:		if (x == SFQ_EMPTY_SLOT) {
 366:			x = q->dep[0].next; /* get a free slot */
 367:			if (x >= SFQ_MAX_FLOWS)
 368:				return qdisc_drop_reason(skb, sch, to_free, QDISC_DROP_MAXFLOWS);
 369:			WRITE_ONCE(q->ht[hash], x);
 370:			slot = &q->slots[x];
 371:			slot->hash = hash;
 372:			WRITE_ONCE(slot->backlog, 0); /* should already be 0 anyway... */
 373:			red_set_vars(&slot->vars);
 374:			goto enqueue;
 375:		}
 376:		if (q->red_parms) {
 377:			slot->vars.qavg = red_calc_qavg_no_idle_time(q->red_parms,
 378:								&slot->vars,
 379:								slot->backlog);
 380:			switch (red_action(q->red_parms,
 381:					   &slot->vars,
 382:					   slot->vars.qavg)) {
 383:			case RED_DONT_MARK:
 384:				break;
 385:	
 386:			case RED_PROB_MARK:
 387:				qdisc_qstats_overlimit(sch);
 388:				if (sfq_prob_mark(q)) {
 389:					/* We know we have at least one packet in queue */
 390:					if (sfq_headdrop(q) &&
 391:					    INET_ECN_set_ce(slot->skblist_next)) {
 392:						q->stats.prob_mark_head++;
 393:						break;
 394:					}
 395:					if (INET_ECN_set_ce(skb)) {
 396:						q->stats.prob_mark++;
 397:						break;
 398:					}
 399:				}
 400:				q->stats.prob_drop++;
 401:				goto congestion_drop;
 402:	
 403:			case RED_HARD_MARK:
 404:				qdisc_qstats_overlimit(sch);
 405:				if (sfq_hard_mark(q)) {
 406:					/* We know we have at least one packet in queue */
 407:					if (sfq_headdrop(q) &&
 408:					    INET_ECN_set_ce(slot->skblist_next)) {
 409:						q->stats.forced_mark_head++;
 410:						break;
 411:					}
 412:					if (INET_ECN_set_ce(skb)) {
 413:						q->stats.forced_mark++;
 414:						break;
 415:					}
 416:				}
 417:				q->stats.forced_drop++;
 418:				goto congestion_drop;
 419:			}
 420:		}
 421:	
 422:		if (slot->qlen >= q->maxdepth) {
 423:	congestion_drop:
 424:			if (!sfq_headdrop(q))
 425:				return qdisc_drop_reason(skb, sch, to_free, QDISC_DROP_FLOW_LIMIT);
 426:	
 427:			/* We know we have at least one packet in queue */
 428:			head = slot_dequeue_head(slot);
 429:			delta = qdisc_pkt_len(head) - qdisc_pkt_len(skb);
 430:			qstats_backlog_sub(sch, delta);
 431:			WRITE_ONCE(slot->backlog, slot->backlog - delta);
 432:			qdisc_drop_reason(head, sch, to_free, QDISC_DROP_FLOW_LIMIT);
 433:	
 434:			slot_queue_add(slot, skb);
 435:			qdisc_tree_reduce_backlog(sch, 0, delta);
 436:			return NET_XMIT_CN;
 437:		}
 438:	
 439:	enqueue:
 440:		qdisc_qstats_backlog_inc(sch, skb);
 441:		WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 442:		slot_queue_add(slot, skb);
 443:		sfq_inc(q, x);
 444:		if (slot->qlen == 1) {		/* The flow is new */
 445:			if (q->tail == NULL) {	/* It is the first flow */
 446:				slot->next = x;
 447:			} else {
 448:				slot->next = q->tail->next;
 449:				q->tail->next = x;
 450:			}
 451:			/* We put this flow at the end of our flow list.
 452:			 * This might sound unfair for a new flow to wait after old ones,
 453:			 * but we could endup servicing new flows only, and freeze old ones.
 454:			 */
 455:			q->tail = slot;
 456:			/* We could use a bigger initial quantum for new flows */
 457:			WRITE_ONCE(slot->allot, q->quantum);
 458:		}
 459:		qdisc_qlen_inc(sch);
 460:		if (sch->q.qlen <= q->limit)
 461:			return NET_XMIT_SUCCESS;
 462:	
 463:		qlen = slot->qlen;
 464:		dropped = sfq_drop(sch, to_free);
 465:		/* Return Congestion Notification only if we dropped a packet
 466:		 * from this flow.
 467:		 */
 468:		if (qlen != slot->qlen) {
 469:			qdisc_tree_reduce_backlog(sch, 0, dropped - qdisc_pkt_len(skb));
 470:			return NET_XMIT_CN;
 471:		}
 472:	
 473:		/* As we dropped a packet, better let upper stack know this */
 474:		qdisc_tree_reduce_backlog(sch, 1, dropped);
 475:		return NET_XMIT_SUCCESS;
 476:	}
 SourceFile:net/sched/sch_sfq.c]

473/5 2026/08/15 18:45 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 22252
							output: 38
							thoughts: 2653
						

Thoughts:
**My Thought Process on `sfq_enqueue` and `qdisc_tree_reduce_backlog` Interactions**

I've been digging into the `sfq_enqueue` function, and I've noticed a pattern: it calls `qdisc_tree_reduce_backlog` in a few key places. Specifically, I see it being invoked:

1.  On line 435, with `qdisc_tree_reduce_backlog(sch, 0, delta);`, if the flow's queue length (`slot->qlen`) exceeds the maximum depth (`q->maxdepth`) and `sfq_headdrop(q)` is true.
2.  On line 469, with `qdisc_tree_reduce_backlog(sch, 0, dropped - qdisc_pkt_len(skb));`, if a packet from the current flow was dropped.
3.  On line 474, with `qdisc_tree_reduce_backlog(sch, 1, dropped);`, if a packet from a *different* flow was dropped.

However, a crucial observation hit me: if the scheduler's overall queue length (`sch->q.qlen`) is *not* exceeding its limit (`q->limit`) – specifically, if `sch->q.qlen <= q->limit` (line 460) – then `sfq_enqueue` returns `NET_XMIT_SUCCESS` and, importantly, *doesn't* call `qdisc_tree_reduce_backlog` at all.

This immediately led me to a critical realization: if the overall queue isn't full (`sch->q.qlen <= q->limit`), `sfq_enqueue` simply returns success, and `qdisc_tree_reduce_backlog` is never called internally.

Now, let's consider `sfq_rehash`. It looks like this:

```c
		if (sfq_enqueue(skb, sch, &to_free) != NET_XMIT_SUCCESS) {
			qdisc_qstats_drop(sch);
			qdisc_tree_reduce_backlog(sch, 1, qdisc_pkt_len(skb));
			drop_rcu = true;
		}
```

This means that if `sfq_enqueue` *does not* return `NET_XMIT_SUCCESS`, `sfq_rehash` will then proceed to call `qdisc_tree_reduce_backlog`. But, as I just noted, if the queue isn't full (`sch->q.qlen <= q->limit`), `sfq_enqueue` *will* return `NET_XMIT_SUCCESS`, and `qdisc_tree_reduce_backlog` won't be called *at all* within `sfq_enqueue` itself.

This is a profound implication: If the queue remains below its `limit`, `qdisc_tree_reduce_backlog` is *never* invoked.

Let's think about a common scenario. If I'm only sending one packet per flow, `sch->q.qlen` would be 1. The default `q->limit` is 127. In this situation, `sch->q.qlen <= q->limit` is trivially true. Therefore, `sfq_enqueue` returns `NET_XMIT_SUCCESS`, and again, `qdisc_tree_reduce_backlog` is *never* called. This, I believe, is precisely why my previous reproducer was failing – it wasn't triggering any call to `qdisc_tree_reduce_backlog`.

So, the burning question becomes: how can I force `sfq_enqueue` to either fail or, at the very least, trigger a call to `qdisc_tree_reduce_backlog`? The obvious answer is to make `sch->q.qlen > q->limit`.

Let's re-examine `sfq_rehash`. It dequeues packets, then re-enqueues them. The total number of packets (`sch->q.qlen`) should theoretically remain the same as it was before the dequeue operations. If it was `<= q->limit` initially, it should still be `<= q->limit` after re-enqueuing. This presents a paradox: if `sch->q.qlen` cannot exceed `q->limit` during rehash, how can `sfq_enqueue` possibly fail?

I looked closer at line 367 of `sfq_enqueue`:

```c
		if (x == SFQ_EMPTY_SLOT) {
			x = q->dep[0].next; /* get a free slot */
			if (x >= SFQ_MAX_FLOWS)
				return qdisc_drop_reason(skb, sch, to_free, QDISC_DROP_MAXFLOWS);
```

If `x` (the next free slot index) is greater than or equal to `SFQ_MAX_FLOWS` (which is 128 by default), `sfq_enqueue` returns `NET_XMIT_DROP`. However, this condition is only met if `q->limit` is also at least 128, otherwise, you couldn't have that many packets in the first place. If `q->limit` is 127, `x >= SFQ_MAX_FLOWS` shouldn't be reachable.

Are there other failure paths for `sfq_enqueue`? Line 422 checks `if (slot->qlen >= q->maxdepth)`. The default `q->maxdepth` is 127. If *all* packets happen to hash to the *same* flow during rehash, `slot->qlen` could indeed reach `q->maxdepth`. But if `q->limit` is also 127, then `slot->qlen` can be at most 127. This seems to be the same limit.

What if I try a very small `limit`, like `tc qdisc add ... sfq limit 1`? If `limit` is 1, and I enqueue one packet, `q->q.qlen` becomes 1. During rehash, I dequeue that packet and re-enqueue it. `q->q.qlen` is still 1. `sch->q.qlen <= q->limit` (1 <= 1) is true. It still doesn't drop.

This is where I start to wonder how syzbot managed to trigger this. Let's revisit `sfq_rehash`. The key is that `sfq_enqueue` *can* return values other than `NET_XMIT_SUCCESS`. Specifically, it can return `NET_XMIT_CN` (which is 2). If `sfq_enqueue` returns `NET_XMIT_CN`, the condition `sfq_enqueue(skb, sch, &to_free) != NET_XMIT_SUCCESS` in `sfq_rehash` becomes true, and `qdisc_tree_reduce_backlog` is called.

When does `sfq_enqueue` return `NET_XMIT_CN`? I found two places:
*   Line 436: `return NET_XMIT_CN;` (if `slot->qlen >= q->maxdepth` and `sfq_headdrop(q)`)
*   Line 470: `return NET_XMIT_CN;` (if `sch->q.qlen > q->limit` and `qlen != slot->qlen`)

This is interesting. If `sfq_enqueue` returns `NET_XMIT_CN`, `sfq_rehash` calls `qdisc_tree_reduce_backlog`. But there's a potential double-call issue here: `sfq_enqueue` itself might have already called `qdisc_tree_reduce_backlog` internally before returning `NET_XMIT_CN`.

Also, `sfq_enqueue` can return `NET_XMIT_DROP` (1). When this happens, `sfq_rehash` also triggers `qdisc_tree_reduce_backlog`.
When does `sfq_enqueue` return `NET_XMIT_DROP`?
*   Line 368: `return qdisc_drop_reason(...)`
*   Line 425: `return qdisc_drop_reason(...)` (if `slot->qlen >= q->maxdepth` and `!sfq_headdrop(q)`)

So, if `slot->qlen >= q->maxdepth`, it returns `NET_XMIT_DROP`. How can `slot->qlen >= q->maxdepth` happen during rehash?

Consider a scenario with two packets. Initially, they might hash to different flows. During rehash, the hash perturbation can change. If they now hash to the *same* flow, when the second packet is considered for enqueueing, `slot->qlen` could reach `q->maxdepth`. For instance, if `q->maxdepth` is set to 1 (via `depth 1`), and two packets hash to the same flow, the second packet would see `slot->qlen` as 1. The check `slot->qlen >= q->maxdepth` (1 >= 1) would then be true, leading to a drop.

The `tc qdisc add ... sfq depth 1` command seems promising. If `depth` is 1, any flow can only hold one packet. If I send two packets, and they initially hash to different flows, they are both accepted. During rehash, there's a chance they hash to the same flow. If they do, the second packet will encounter `slot->qlen >= q->maxdepth` (1 >= 1), and `sfq_enqueue` will return `NET_XMIT_DROP`, triggering the `qdisc_tree_reduce_backlog` call in `sfq_rehash`.

However, with a default `divisor` of 1024, the chance of two packets hashing to the same flow during rehash might be too low to reliably trigger the drop for every execution. I need a way to *guarantee* a drop during rehash.

A thought that crossed my mind is whether `sfq_dequeue` itself affects `sch->q.qlen`. If `sfq_dequeue` removes packets from the queue but *doesn't* decrement `sch->q.qlen`, then during rehash, `sch->q.qlen` could indeed grow beyond `q->limit` as packets are re-enqueued after being dequeued from the internal list. I need to verify the implementation of `sfq_dequeue`.


474/5 2026/08/15 18:46 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_dequeue]

Results:
map[SourceCode: 478:	static struct sk_buff *
 479:	sfq_dequeue(struct Qdisc *sch)
 480:	{
 481:		struct sfq_sched_data *q = qdisc_priv(sch);
 482:		struct sk_buff *skb;
 483:		sfq_index a, next_a;
 484:		struct sfq_slot *slot;
 485:	
 486:		/* No active slots */
 487:		if (q->tail == NULL)
 488:			return NULL;
 489:	
 490:	next_slot:
 491:		a = q->tail->next;
 492:		slot = &q->slots[a];
 493:		if (slot->allot <= 0) {
 494:			q->tail = slot;
 495:			WRITE_ONCE(slot->allot, slot->allot + q->quantum);
 496:			goto next_slot;
 497:		}
 498:		skb = slot_dequeue_head(slot);
 499:		sfq_dec(q, a);
 500:		qdisc_bstats_update(sch, skb);
 501:		qdisc_qlen_dec(sch);
 502:		qdisc_qstats_backlog_dec(sch, skb);
 503:		WRITE_ONCE(slot->backlog, slot->backlog - qdisc_pkt_len(skb));
 504:		/* Is the slot empty? */
 505:		if (slot->qlen == 0) {
 506:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 507:			next_a = slot->next;
 508:			if (a == next_a) {
 509:				q->tail = NULL; /* no more active slots */
 510:				return skb;
 511:			}
 512:			q->tail->next = next_a;
 513:		} else {
 514:			WRITE_ONCE(slot->allot, slot->allot - qdisc_pkt_len(skb));
 515:		}
 516:		return skb;
 517:	}
 SourceFile:net/sched/sch_sfq.c]

475/5 2026/08/15 18:46 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 25577
							output: 38
							thoughts: 884
						

Thoughts:
**My Thought Process Regarding SFQ Behavior and Packet Dropping**

I've been digging into the `sfq_dequeue` and `sfq_enqueue` functions, and I think I've had a breakthrough regarding how `sch->q.qlen` behaves. It turns out `sfq_dequeue` *does* decrement `sch->q.qlen` (specifically, line 501: `qdisc_qlen_dec(sch)`). This means that during `sfq_rehash`, `sch->q.qlen` will eventually be reduced down to 0. Then, as packets are re-enqueued, `sfq_enqueue` increments `sch->q.qlen` back up. Consequently, `sch->q.qlen` will never exceed its original value, which was already guaranteed to be less than or equal to `q->limit`.

This leads me to believe that the condition `sch->q.qlen <= q->limit` should *always* be true. And if that's the case, then `sfq_enqueue` should *always* return `NET_XMIT_SUCCESS`!

But then I looked closer at `sfq_enqueue` itself, specifically line 460:

```c
	qdisc_qlen_inc(sch);
	if (sch->q.qlen <= q->limit)
		return NET_XMIT_SUCCESS;
```

This confirms my thought: if `sch->q.qlen <= q->limit`, it returns `NET_XMIT_SUCCESS`. Since my previous deduction suggests `sch->q.qlen` will never exceed the original value (which was `<= q->limit`), it *should* always return `NET_XMIT_SUCCESS`.

This raises a critical question: are there *any* circumstances where `sfq_enqueue` would return something other than `NET_XMIT_SUCCESS`? My analysis points to yes, but only if a packet is dropped *before* reaching line 460. So, where could this premature drop occur?

1.  **Line 355: `hash == 0` (classification failed).** My initial thought was that `skb_get_hash` shouldn't fail.
2.  **Line 367: `x >= SFQ_MAX_FLOWS`.** This seems unlikely because `SFQ_MAX_FLOWS` is 128. If `limit` is 127, we can't possibly have 128 distinct flows active at the same time within the limit.
3.  **Line 422: `slot->qlen >= q->maxdepth`.** This one seems particularly interesting. Let's consider `q->maxdepth`. If I set `limit` to 127 and `depth` to 1, then `q->maxdepth` is 1. Now, imagine I send two packets that hash to different flows. Both would be accepted, and `slot->qlen` for each would be 1. However, during a rehash, these two packets could potentially hash to the *same* flow. In this scenario, when the second packet arrives, `slot->qlen` would be 1, which is now greater than or equal to `q->maxdepth` (which is also 1). This would cause the packet to be dropped and `NET_XMIT_DROP` to be returned. And crucially, I recall that `sfq_rehash` does call `qdisc_tree_reduce_backlog` in such cases!

This brings me to another crucial point: is `depth` actually a configurable parameter? I checked the `tc qdisc add ... sfq help` output, and yes, `depth` is listed as a valid parameter for SFQ. For example, one could use: `tc qdisc add dev dummy0 parent 1:1 handle 2: sfq perturb 1 limit 127 depth 1`.

Now, returning to the `hash == 0` case (line 355), if `depth` is 1 and I send, say, 10 packets. If they hash to different flows, they'd be accepted. But what if `skb_get_hash(skb)` returns 0? If `hash == 0`, `sfq_enqueue` drops the packet at line 355:

```c
	hash = sfq_classify(skb, sch, &ret);
	if (hash == 0) {
		if (ret & __NET_XMIT_BYPASS)
			qdisc_qstats_drop(sch);
		__qdisc_drop(skb, to_free);
		return ret;
	}
```

The key here is that if `hash == 0`, it returns `ret`. I need to investigate what `ret` is in this specific context. I need to look at the `sfq_classify` function to understand the value of `ret`.


476/5 2026/08/15 18:46 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_classify]

Results:
map[SourceCode: 156:	static unsigned int sfq_classify(struct sk_buff *skb, struct Qdisc *sch,
 157:					 int *qerr)
 158:	{
 159:		struct sfq_sched_data *q = qdisc_priv(sch);
 160:		struct tcf_result res;
 161:		struct tcf_proto *fl;
 162:		int result;
 163:	
 164:		if (TC_H_MAJ(skb->priority) == sch->handle &&
 165:		    TC_H_MIN(skb->priority) > 0 &&
 166:		    TC_H_MIN(skb->priority) <= q->divisor)
 167:			return TC_H_MIN(skb->priority);
 168:	
 169:		fl = rcu_dereference_bh(q->filter_list);
 170:		if (!fl)
 171:			return sfq_hash(q, skb) + 1;
 172:	
 173:		*qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
 174:		result = tcf_classify(skb, NULL, fl, &res, false);
 175:		if (result >= 0) {
 176:	#ifdef CONFIG_NET_CLS_ACT
 177:			switch (result) {
 178:			case TC_ACT_STOLEN:
 179:			case TC_ACT_QUEUED:
 180:			case TC_ACT_TRAP:
 181:				*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
 182:				fallthrough;
 183:			case TC_ACT_SHOT:
 184:				return 0;
 185:			}
 186:	#endif
 187:			if (TC_H_MIN(res.classid) <= q->divisor)
 188:				return TC_H_MIN(res.classid);
 189:		}
 190:		return 0;
 191:	}
 SourceFile:net/sched/sch_sfq.c]

477/5 2026/08/15 18:46 llm strategy-refiner
1m Model:
gemini-3.1-pro-preview

Tokens:
							input: 27086
							output: 2468
							thoughts: 11014
						

Thoughts:
**The Genesis of a Kernel Race: Unraveling the SFQ Drop Bug**

My thought process began with a deep dive into the `sfq_classify` function's return value. I immediately noticed that it *never* returns 0 unless a packet is explicitly dropped by a filter. This seemed like a potential avenue for control. I then traced `sfq_hash` back to `skb_get_hash`. A crucial realization dawned: if I were to send packets with identical `skb_get_hash` values (like packets with all zero data), they would all map to the same flow. If the `depth` of the SFQ queue for that flow was set to 1, the first packet would be accepted, but any subsequent packet arriving would be dropped during the initial `sfq_enqueue`. This drop would mean that during `sfq_rehash`, there would only be one packet in the queue, making it impossible to exceed the `depth` of 1. Consequently, no drops would occur during `sfq_rehash` itself.

This observation led me to the core problem: how could I engineer a scenario where packets initially map to different flows but converge to the same flow during rehash, thus causing a drop? I meticulously examined the `sfq_rehash` function. The comment, "We drop skb if it goes into a newly created flow and qlen reaches limit," seemed like a dead end, as I had already established that `qlen` would never reach the limit during rehash under normal circumstances. My next step was to scrutinize `sfq_enqueue` for any other potential failure points.

I discovered that `sfq_enqueue` could return `NET_XMIT_CN` under specific conditions. Tracing this back, I found it happens when `slot->qlen >= q->maxdepth`. Critically, this logic is executed *after* the check for `sch->q.qlen <= q->limit`. In the context of `sfq_rehash`, where packets are re-enqueued from a temporary list, `sch->q.qlen` would never exceed `q->limit`. However, the `slot->qlen >= q->maxdepth` condition remained a possibility if `depth` (or `maxdepth`) was set low.

This was the breakthrough! If `slot->qlen >= q->maxdepth` triggers a `NET_XMIT_CN` return from `sfq_enqueue`, and `NET_XMIT_CN` is not `NET_XMIT_SUCCESS`, then `sfq_rehash` would indeed call `qdisc_tree_reduce_backlog`. The problem then became: how to ensure `slot->qlen >= q->maxdepth` during rehash?

The solution lay in the interaction between initial packet hashing and the `sfq_perturb` mechanism. If packets initially hashed to *different* flows, but then, due to the perturbation changing the hash, they began hashing to the *same* flow during rehash, the second packet would indeed encounter a `slot->qlen` that met or exceeded `q->maxdepth`.

I realized that to achieve this, I needed two key elements:
1.  **Varying Initial Hashes:** To make packets hash to different flows initially, they needed distinct identifiers in their headers. Modifying the source IP or port in a valid IP packet would work. I decided to construct a simple IPv4 UDP packet and vary the source port. This would ensure `skb_get_hash` produced different results.
2.  **A Small `depth`:** Setting `depth` to 1 was paramount. This meant that any collision during rehash, where a flow already had one packet, would immediately trigger the `slot->qlen >= q->maxdepth` condition.

This led me to the refined strategy:
*   Configure the SFQ qdisc with `depth 1`.
*   Send a burst of packets with different source ports to the same SFQ qdisc. These packets would, with high probability, initially hash to different flows.
*   During `sfq_rehash`, the perturbation would change the hash function. With a sufficient number of packets and buckets, the probability of at least one collision (two packets now hashing to the same flow) became very high.
*   When a collision occurred, the second packet would find `slot->qlen` already at 1 (since `depth` is 1). This would cause `sfq_enqueue` to return `NET_XMIT_DROP` (because `headdrop` is off by default), which is not `NET_XMIT_SUCCESS`.
*   `sfq_rehash` would then call `qdisc_tree_reduce_backlog`.

The final piece of the puzzle was timing the race condition. To make `qdisc_tree_reduce_backlog` call `WARN_ON_ONCE` (the actual bug trigger), the root qdisc needed to be deleted (`qdisc_hash_del`) *before* `qdisc_tree_reduce_backlog` attempted to look up the root. The `sfq_perturb` timer, set to `1` second, became the crucial synchronization point. By creating many classes (5000) with SFQ, I could widen the time window during which `htb_destroy` (invoked by deleting the root qdisc) was active. Then, by carefully calculating the sleep time before deleting the root qdisc, I could ensure the `sfq_perturb` timers fired precisely when the `htb_destroy` was in progress but hadn't yet removed the SFQ qdiscs associated with the timers. This overlap would cause `qdisc_tree_reduce_backlog` to fail its lookup and trigger the kernel warning, reliably reproducing the bug. The use of raw IP packets with varying source ports and the specific `tc` command with `depth 1` were the concrete implementations of these insights.


478/3 2026/08/15 18:47 action merge-strategy
0m Results:
map[CurrentReproStrategy:An analysis of the kernel source code reveals why the previous reproducer failed and exactly what is needed to trigger the bug.

### Technical Diagnosis
The race condition occurs when `sfq_perturbation` fires, calls `sfq_rehash`, and `sfq_rehash` calls `qdisc_tree_reduce_backlog`. However, `sfq_rehash` **only** calls `qdisc_tree_reduce_backlog` if re-enqueueing a packet fails (i.e., `sfq_enqueue` returns something other than `NET_XMIT_SUCCESS`). 

In the previous reproducer, we sent identical packets. Because the total number of packets was below the queue limit, `sfq_enqueue` always succeeded during rehash, meaning `qdisc_tree_reduce_backlog` was **never called**, completely missing the buggy code path.

To force `sfq_enqueue` to fail during rehash, we must:
1. Set the SFQ `depth` parameter to `1`. This restricts each internal flow bucket to a maximum of 1 packet.
2. Send multiple valid IP/UDP packets with **varying source ports** to the same SFQ qdisc. Initially, they will hash to different flow buckets and be successfully queued.
3. When the `perturb` timer fires, `sfq_rehash` changes the hash perturbation seed and re-enqueues the packets. Because of the new seed, some packets will inevitably collide into the same flow bucket.
4. Since `depth` is 1, the collision causes `sfq_enqueue` to drop the packet and return `NET_XMIT_DROP`. This forces `sfq_rehash` to call `qdisc_tree_reduce_backlog`, triggering the bug.

Additionally, to ensure the timer fires exactly during the destruction window, we increase the number of HTB classes to 5000 (widening the destruction window) and use a carefully calculated sleep with jitter to overlap the synchronous `RTM_DELQDISC` perfectly with the timers firing.

### C Reproducer

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 5000

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    delete_qdisc(ifindex);
    
    char batch_file[64];
    sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
    
    while (1) {
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 5000 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            // CRITICAL: depth 1 forces sfq_enqueue to drop packets during rehash if they collide
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1 limit 127 depth 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to the last 200 classes to ensure the SFQ queues are not empty
        char pkt[64] = {0};
        struct ethhdr *eth = (struct ethhdr *)pkt;
        struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
        struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

        eth->h_proto = htons(ETH_P_IP);
        ip->version = 4;
        ip->ihl = 5;
        ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
        ip->protocol = IPPROTO_UDP;
        ip->saddr = htonl(0x01020304);
        ip->daddr = htonl(0x05060708);
        udp->len = htons(sizeof(struct udphdr));

        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 50; p++) {
                udp->source = htons(p); // Vary source port to change hash and avoid initial collisions
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // We sleep for 1 second minus the setup time, plus a random jitter up to 200ms
        // so that delete_qdisc overlaps perfectly with the timers firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 200000;
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getuid()); fclose(f); }
    f = fopen("/proc/self/setgroups", "w");
    if (f) { fprintf(f, "deny\n"); fclose(f); }
    f = fopen("/proc/self/gid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getgid()); fclose(f); }
    
    system("ip link set lo up");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```]

479/3 2026/08/15 18:47 agent repro-generator
5m Model:
best-expensive

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 5000

struct my_tc_ratespec {
    unsigned char cell_log;
    uint8_t linklayer;
    unsigned short overhead;
    short cell_align;
    unsigned short mpu;
    uint32_t rate;
};

struct my_tc_htb_opt {
    struct my_tc_ratespec rate;
    struct my_tc_ratespec ceil;
    uint32_t buffer;
    uint32_t cbuffer;
    uint32_t quantum;
    uint32_t prio;
};

struct my_tc_htb_glob {
    uint32_t version;
    uint32_t rate2quantum;
    uint32_t defcls;
    uint32_t debug;
    uint32_t direct_pkts;
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

#define TCA_KIND 1
#define TCA_OPTIONS 2

#define TCA_HTB_PARMS 1
#define TCA_HTB_INIT 2

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_opt hopt = {0};
    hopt.rate.rate = 1;
    hopt.rate.linklayer = 1;
    hopt.ceil.rate = 1;
    hopt.ceil.linklayer = 1;
    hopt.buffer = 1000;
    hopt.cbuffer = 1000;
    hopt.quantum = 1000;
    hopt.prio = 0;
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) return NULL;
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        
        struct timespec start, end;
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
            struct nlmsghdr *n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
            
            if (c % 500 == 0 || c == NUM_CLASSES) {
                n->nlmsg_flags |= NLM_F_ACK;
                uint32_t expected_seq = n->nlmsg_seq;
                if (c == NUM_CLASSES) {
                    clock_gettime(CLOCK_MONOTONIC, &start);
                }
                if (batch_send(nl_fd, &b, expected_seq) < 0) {
                    printf("[-] batch_send failed\n");
                }
                b.offset = 0;
            }
        }
        
        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 100; p++) {
                udp->source = htons(p);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long sleep_us = 980000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 40000;
            usleep(sleep_us + jitter);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

Instruction:
You are a security researcher with deep Linux kernel background.
Your goal is to generate a minimal, standalone C program for the strictly defensive
purpose of verifying a bugfix in an isolated environment.

To ensure that we can diagnose why a program might fail to run on the test environment,
you MUST include detailed logging and error checking in the generated C program:
1. Use 'printf(...)' for all progress messages and error logs.
2. Every system call (e.g., socket, bind, listen, connect, ioctl, send) must check for a failure return value.
3. If a call fails, it must print a specific error message including the function name
   and the error string (use strerror(errno)), and then exit with a non-zero status.
4. The program must print a message after every successful major step.
5. Generate code that follows this pattern for all operations:
    int res = do_something();
    if (res < 0) {
        printf("[-] Failed to do_something: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] do_something successful.\n");
6. The compilation and development environment (including compilers, build
   systems, makefiles, and kernel build/header directories) is NOT available
   on the target test VM guest. Do NOT check for, build, or reference any
   compilation tools, build files, or kernel development directories.
7. Do NOT execute shell commands or run external binaries (e.g. by using
   functions like 'system()', 'popen()', or the 'exec' family such as
   'execve()'). All environment checks, capability probings, and reproduction
   steps must be performed directly using standard Linux system calls (such
   as 'open', 'socket', 'ioctl', 'stat', etc.).
8. When reproducing asynchronous kernel timeouts or warnings, always
   include a sufficient delay (using sleep or similar) after deleting
   or unregistering the device to allow the kernel's asynchronous
   timeout to trigger before program exit.


=== PHASE 2: BUG REPRODUCTION (GENERATION) ===
You must now generate a full reproducer candidate attempting to trigger the target bug/crash.
Do NOT generate a probe program. Focus directly on triggering the bug/crash described in the description.
You can assume that all necessary kernel capabilities and privileges (e.g., access to /dev/vhci,
ability to load BPF programs, etc.) have already been verified and are available in the environment.

Do not spend too much time analyzing or trying to generate a perfect one-shot reproducer.
Instead, follow an iterative approach: generate a simple candidate, execute it, analyze the results,
and improve it. Keep your reasoning steps short and focused on the next logical experiment.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Strategy: An analysis of the kernel source code reveals why the previous reproducer failed and exactly what is needed to trigger the bug.

### Technical Diagnosis
The race condition occurs when `sfq_perturbation` fires, calls `sfq_rehash`, and `sfq_rehash` calls `qdisc_tree_reduce_backlog`. However, `sfq_rehash` **only** calls `qdisc_tree_reduce_backlog` if re-enqueueing a packet fails (i.e., `sfq_enqueue` returns something other than `NET_XMIT_SUCCESS`). 

In the previous reproducer, we sent identical packets. Because the total number of packets was below the queue limit, `sfq_enqueue` always succeeded during rehash, meaning `qdisc_tree_reduce_backlog` was **never called**, completely missing the buggy code path.

To force `sfq_enqueue` to fail during rehash, we must:
1. Set the SFQ `depth` parameter to `1`. This restricts each internal flow bucket to a maximum of 1 packet.
2. Send multiple valid IP/UDP packets with **varying source ports** to the same SFQ qdisc. Initially, they will hash to different flow buckets and be successfully queued.
3. When the `perturb` timer fires, `sfq_rehash` changes the hash perturbation seed and re-enqueues the packets. Because of the new seed, some packets will inevitably collide into the same flow bucket.
4. Since `depth` is 1, the collision causes `sfq_enqueue` to drop the packet and return `NET_XMIT_DROP`. This forces `sfq_rehash` to call `qdisc_tree_reduce_backlog`, triggering the bug.

Additionally, to ensure the timer fires exactly during the destruction window, we increase the number of HTB classes to 5000 (widening the destruction window) and use a carefully calculated sleep with jitter to overlap the synchronous `RTM_DELQDISC` perfectly with the timers firing.

### C Reproducer

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 5000

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    delete_qdisc(ifindex);
    
    char batch_file[64];
    sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
    
    while (1) {
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 5000 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            // CRITICAL: depth 1 forces sfq_enqueue to drop packets during rehash if they collide
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1 limit 127 depth 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to the last 200 classes to ensure the SFQ queues are not empty
        char pkt[64] = {0};
        struct ethhdr *eth = (struct ethhdr *)pkt;
        struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
        struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

        eth->h_proto = htons(ETH_P_IP);
        ip->version = 4;
        ip->ihl = 5;
        ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
        ip->protocol = IPPROTO_UDP;
        ip->saddr = htonl(0x01020304);
        ip->daddr = htonl(0x05060708);
        udp->len = htons(sizeof(struct udphdr));

        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 50; p++) {
                udp->source = htons(p); // Vary source port to change hash and avoid initial collisions
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // We sleep for 1 second minus the setup time, plus a random jitter up to 200ms
        // so that delete_qdisc overlaps perfectly with the timers firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 200000;
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getuid()); fclose(f); }
    f = fopen("/proc/self/setgroups", "w");
    if (f) { fprintf(f, "deny\n"); fclose(f); }
    f = fopen("/proc/self/gid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getgid()); fclose(f); }
    
    system("ip link set lo up");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```


Previous Reproducer Attempt:
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <linux/pkt_sched.h>
#include <errno.h>
#include <sys/types.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 1000

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct tc_htb_opt hopt = {
        .rate = { .rate = 1, .linklayer = 1 },
        .ceil = { .rate = 1, .linklayer = 1 },
        .buffer = 1000, .cbuffer = 1000, .quantum = 1000, .prio = 0
    };
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct tc_sfq_qopt opt = {
        .perturb_period = 1,
        .limit = 1000,
        .divisor = 1024,
        .flows = 127
    };
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b) {
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == b->seq - 1) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) return -1;
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strcpy(ifr.ifr_name, name);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    
    int sndbuf = 2 * 1024 * 1024;
    int rcvbuf = 2 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int ifindex = get_ifindex("lo");
    if (ifindex < 0) {
        printf("[-] Failed to get ifindex for lo\n");
        close(nl_fd);
        return NULL;
    }
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        perror("socket AF_PACKET");
        close(nl_fd);
        return NULL;
    }
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    char pkt[64] = {0};
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Starting race loop...\n");
    for (int iter = 0; iter < 50; iter++) {
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
        }
        struct nlmsghdr *last_n = NULL;
        for (int c = 1; c <= NUM_CLASSES; c++) {
            last_n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
        }
        if (last_n) last_n->nlmsg_flags |= NLM_F_ACK;
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        if (batch_send(nl_fd, &b) < 0) {
            printf("[-] batch_send failed\n");
            continue;
        }
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            int prio = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
            sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // The timers fire 1 second after they are armed.
        // We want to delete the root qdisc slightly before they fire.
        // We vary the sleep time to sweep across the race window.
        long sleep_us = 995000 - elapsed_us + (iter * 500); // 995ms to 1019.5ms
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit to let asynchronous destruction finish
        usleep(50000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    racer(NULL);
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}




Execution Results & Debugging Feedback:
The reproducer failed to trigger the warning because it attempts to hit a very narrow race condition window, and the current reproducer logic does not widen this window sufficiently or coordinate the timing well enough.

**Technical Diagnosis:**
The bug is a race condition between the destruction of a parent qdisc (e.g., HTB) and the `sfq_perturbation` timer of its child SFQ qdisc.
1. When the root HTB qdisc is replaced or the network namespace is destroyed, `qdisc_put()` is called on the root qdisc, which invokes `__qdisc_destroy()`.
2. `__qdisc_destroy()` first removes the HTB qdisc from the global qdisc hash via `qdisc_hash_del()`.
3. It then calls `ops->destroy()` (`htb_destroy`), which iterates over all HTB classes and destroys their child qdiscs. For SFQ, this eventually calls `sfq_destroy()`, which stops the `sfq_perturbation` timer via `timer_delete_sync()`.
4. If the `sfq_perturbation` timer fires *after* the HTB qdisc is removed from the hash (step 2) but *before* the timer is synchronously canceled (step 3), it will execute `sfq_rehash()`.
5. `sfq_rehash()` calls `qdisc_tree_reduce_backlog()`, which attempts to look up the parent HTB qdisc using `qdisc_lookup_rcu()`.
6. Since the HTB qdisc was already removed from the hash, the lookup fails, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

**Why the reproducer failed:**
The window between `qdisc_hash_del()` and `timer_delete_sync()` is extremely small. The reproducer creates only 100 HTB classes, which means `htb_destroy()` finishes very quickly, making the race window too narrow to reliably hit with a timer that fires at most once per jiffy. Furthermore, `sfq_rehash()` is only called if `q->tail != NULL` (i.e., the SFQ queue is not empty). If packets are dequeued too quickly by the loopback device, the queue will be empty when the timer fires, and the buggy path won't be reached.

**How to improve the reproducer:**
1. **Widen the race window:** Create a much larger number of HTB classes (e.g., 10,000) and attach the SFQ qdisc to one of the last classes. This will force `htb_destroy()` to spend a significant amount of time iterating over classes before it reaches the SFQ qdisc and cancels its timer.
2. **Ensure the queue is not empty:** Set the HTB class rate to an extremely low value (e.g., 8 bps) so that injected packets remain queued in the SFQ qdisc for a long time, ensuring `q->tail != NULL` when the timer fires.
3. **Maximize timer frequency:** Ensure the SFQ `perturb` parameter is set to the minimum possible non-zero value (1 second) to increase the chance of the timer firing during the window.
4. **Concurrency:** Run the qdisc replacement (`tc qdisc replace ...`) in a tight loop on one CPU while the timer is allowed to fire on another CPU.

480/4 2026/08/15 18:47 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 11725
							output: 43
							thoughts: 2030
						

Thoughts:
**My Plan to Recreate the `sfq_perturbation` Bug**

Here's how I'm thinking through the process of creating a C reproducer for the `WARNING in qdisc_tree_reduce_backlog` bug.

The core of the problem, as I understand it, lies in a race condition. The `sfq_perturbation` timer fires, which triggers `sfq_rehash`. This `sfq_rehash` function, in turn, calls `qdisc_tree_reduce_backlog`. The warning `WARN_ON_ONCE(parentid != TC_H_ROOT)` is triggered because `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))` returns `NULL`. This happens because, during the destruction of the parent qdisc (an HTB class in this scenario), it gets removed from the hash table. However, its child qdiscs (like the SFQ qdisc attached to it) haven't been fully cleaned up yet. If the perturbation timer fires in this narrow window, the lookup fails, and we hit the warning.

My previous attempt at a reproducer failed for a couple of reasons:

1.  **Race Window Too Small:** The timing window where the race condition could occur was simply too tight, making it difficult to reliably trigger.
2.  **Conditional Call to `qdisc_tree_reduce_backlog`:** I learned that `sfq_rehash` doesn't *always* call `qdisc_tree_reduce_backlog`. It only does so if re-enqueuing a packet during the rehashing process fails. Specifically, if `sfq_enqueue` returns `NET_XMIT_DROP` instead of `NET_XMIT_SUCCESS`.

To force `sfq_enqueue` to fail during rehashing, I need to set up a specific scenario:

*   **SFQ Depth to 1:** This is critical. When the SFQ's queue depth is limited to 1, any packet collision will immediately result in a drop.
*   **Multiple Packets with Colliding Flows:** I need to send a steady stream of valid IP/UDP packets destined for the same SFQ qdisc, but crucially, with varying source ports. This increases the probability of hash collisions.
*   **Perturbation Timer Activation:** When the perturbation timer fires, `sfq_rehash` is invoked. It changes the hash perturbation seed. Due to this new seed, packets that previously went to different flow buckets will now collide into the same bucket.
*   **Forcing a Drop:** Because the SFQ depth is 1, this collision forces `sfq_enqueue` to drop the packet and return `NET_XMIT_DROP`. This, in turn, triggers the call to `qdisc_tree_reduce_backlog`, and we should hit the bug.

To improve the reliability and widen the race window, I'm going to incorporate these strategies:

*   **Massive Number of HTB Classes:** Instead of a few, I'll create a significantly larger number of HTB classes – around 10,000. I'll attach the SFQ qdisc to one of the later classes. This increases the complexity of the qdisc tree and the potential for delayed cleanup.
*   **Constrained HTB Class Rate:** I'll set the HTB class rate to an extremely low value, like 8 bits per second (bps). This ensures the queue is almost always empty or has very few packets, making the rehashing and potential drops more impactful.
*   **Maximize Timer Frequency:** I'll set the SFQ perturbation parameter to 1, ensuring the timer fires as frequently as possible.
*   **Concurrency:** The key here is to run the qdisc replacement operations (like deleting the root qdisc) in a tight loop on one CPU, while simultaneously allowing the perturbation timer to fire on another CPU. This maximizes the chances of the timer firing precisely when the qdisc tree is in a transitional state.

A major constraint is that I **cannot** use shell commands like `system()` or `popen()` to configure the network devices. All setup must be done directly using standard Linux system calls, which means I'll be working with netlink. Fortunately, my previous attempt already had a netlink batching implementation. I can reuse that, but I need to ensure it's configured correctly with the new parameters:

*   HTB rate at 8 bps.
*   10,000 classes.
*   SFQ parameters: perturb=1, limit=127, depth=1.
*   Sending UDP packets with varying source ports.
*   Crucially, I'll be deleting the root qdisc to trigger the destruction process of the parent HTB classes.

I'll need to carefully examine the existing netlink code for setting up HTB roots and classes, and then adapt the SFQ setup to use `tc_sfq_qopt_v1` to specify the `depth` parameter, as this is essential for triggering the drop condition. The provided snippets are a good starting point for understanding how to construct these netlink messages.


481/4 2026/08/15 18:48 tool grepper
0m Args:
map[Expression:struct tc_sfq_qopt_v1 PathPrefix:include/uapi/linux/pkt_sched.h]

Results:
map[Output:include/uapi/linux/pkt_sched.h=221=struct tc_sfqred_stats {
--
include/uapi/linux/pkt_sched.h-229-
include/uapi/linux/pkt_sched.h:230:struct tc_sfq_qopt_v1 {
include/uapi/linux/pkt_sched.h-231-	struct tc_sfq_qopt v0;
]

482/4 2026/08/15 18:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 13901
							output: 40
							thoughts: 20
						

Thoughts:
**My Thought Process Regarding `tc_sfq_qopt_v1`**

Alright, the very first thing I need to do is get a complete and thorough understanding of what `tc_sfq_qopt_v1` actually *is*. This isn't just about seeing a function signature or a few lines of code; I need its full definition. For me, that means delving into its structure, its parameters, its return types, and crucially, its intended purpose within the `tc` (traffic control) subsystem, specifically related to the SFQ (Stochastic Fairness Queuing) algorithm. I'm assuming `_qopt_v1` implies it's a version 1 of some queueing option structure for SFQ. Understanding this definition is the bedrock upon which all subsequent analysis will be built. Without that fundamental knowledge, any further investigation would be speculative and potentially lead me down incorrect paths. So, my immediate priority is to access and parse that complete definition.


483/4 2026/08/15 18:48 tool read-file
0m Args:
map[File:include/uapi/linux/pkt_sched.h FirstLine:225 LineCount:25]

Results:
map[Contents: 225:		__u32           forced_mark;    /* Marked packets, after max threshold */
 226:		__u32           prob_mark_head; /* Marked packets, below max threshold */
 227:		__u32           forced_mark_head;/* Marked packets, after max threshold */
 228:	};
 229:	
 230:	struct tc_sfq_qopt_v1 {
 231:		struct tc_sfq_qopt v0;
 232:		unsigned int	depth;		/* max number of packets per flow */
 233:		unsigned int	headdrop;
 234:	/* SFQRED parameters */
 235:		__u32		limit;		/* HARD maximal flow queue length (bytes) */
 236:		__u32		qth_min;	/* Min average length threshold (bytes) */
 237:		__u32		qth_max;	/* Max average length threshold (bytes) */
 238:		unsigned char   Wlog;		/* log(W)		*/
 239:		unsigned char   Plog;		/* log(P_max/(qth_max-qth_min))	*/
 240:		unsigned char   Scell_log;	/* cell size for idle damping */
 241:		unsigned char	flags;
 242:		__u32		max_P;		/* probability, high resolution */
 243:	/* SFQRED stats */
 244:		struct tc_sfqred_stats stats;
 245:	};
 246:	
 247:	
 248:	struct tc_sfq_xstats {
 249:		__s32		allot;
]

484/4 2026/08/15 18:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 14409
							output: 40
							thoughts: 31
						

Thoughts:
**My Thought Process**

Right, so I've just noticed that `tc_sfq_qopt_v1` is now a recognized option. My immediate inclination is to investigate the foundational `tc_sfq_qopt` to understand what this "v1" signifies. Is it a new iteration, a refinement, or perhaps a distinct fork? I need to see the existing `tc_sfq_qopt` definition and its associated parameters to properly contextualize and evaluate `tc_sfq_qopt_v1`. My goal is to ascertain the differences and implications of this version update.


485/4 2026/08/15 18:48 tool read-file
0m Args:
map[File:include/uapi/linux/pkt_sched.h FirstLine:200 LineCount:25]

Results:
map[Contents: 200:		TCA_TBF_PAD,
 201:		__TCA_TBF_MAX,
 202:	};
 203:	
 204:	#define TCA_TBF_MAX (__TCA_TBF_MAX - 1)
 205:	
 206:	
 207:	/* TEQL section */
 208:	
 209:	/* TEQL does not require any parameters */
 210:	
 211:	/* SFQ section */
 212:	
 213:	struct tc_sfq_qopt {
 214:		unsigned	quantum;	/* Bytes per round allocated to flow */
 215:		int		perturb_period;	/* Period of hash perturbation */
 216:		__u32		limit;		/* Maximal packets in queue */
 217:		unsigned	divisor;	/* Hash divisor  */
 218:		unsigned	flows;		/* Maximal number of flows  */
 219:	};
 220:	
 221:	struct tc_sfqred_stats {
 222:		__u32           prob_drop;      /* Early drops, below max threshold */
 223:		__u32           forced_drop;	/* Early drops, after max threshold */
 224:		__u32           prob_mark;      /* Marked packets, below max threshold */
]

486/4 2026/08/15 18:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 14844
							output: 40
							thoughts: 109
						

Thoughts:
**My Thought Process Regarding SFQ Options and Versioning**

My initial thought is about how the SFQ (Stochastic Fairness Queuing) options can be supplied. I understand that they can be passed using the `tc_sfq_qopt_v1` structure.

However, this immediately raises a question in my mind: if I'm using `tc_sfq_qopt_v1`, does it also imply that I *must* provide the `limit` parameter, both in its `v0` form and its `v1` form? This seems a bit redundant, and I need to clarify the requirements.

Digging a little deeper into this potential requirement, I recall (or am now realizing) a key distinction: the `limit` parameter in `v0` seems to be expressed in terms of *packets*, whereas the `limit` in `v1` is specified in *bytes*. This is a significant difference that I need to keep in mind when configuring SFQ, as it directly impacts how queue limits are enforced and interpreted.

To get a definitive answer and to truly understand the implementation, my next step is to examine the source code. Specifically, I want to look at how the `tc_sfq_qopt_v1` structure is parsed within the `net/sched/sch_sfq.c` file in the Linux kernel. This will provide the concrete details on how these versioned options are handled and what the actual dependencies are for the `limit` parameters.


487/4 2026/08/15 18:48 tool grepper
0m Args:
map[Expression:tc_sfq_qopt_v1 PathPrefix:net/sched/sch_sfq.c]

Results:
map[Output:net/sched/sch_sfq.c=630=static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_sfq.c-634-	struct tc_sfq_qopt *ctl = nla_data(opt);
net/sched/sch_sfq.c:635:	struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
net/sched/sch_sfq.c-636-	unsigned int qlen, dropped = 0;
--
net/sched/sch_sfq.c=833=static int sfq_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_sfq.c-836-	unsigned char *b = skb_tail_pointer(skb);
net/sched/sch_sfq.c:837:	struct tc_sfq_qopt_v1 opt;
net/sched/sch_sfq.c-838-	struct red_parms *p = q->red_parms;
]

488/4 2026/08/15 18:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15259
							output: 38
							thoughts: 27
						

Thoughts:
**My Thought Process on `sfq_change` and `tc_sfq_qopt_v1`**

Alright, so my primary objective right now is to get a solid understanding of how `sfq_change` interacts with and, crucially, parses `tc_sfq_qopt_v1`. This is the immediate goal. I need to dive into the `sfq_change` code and meticulously trace its execution flow, specifically looking for where it consumes or interprets the `tc_sfq_qopt_v1` structure. My expectation is that `sfq_change` will be the component responsible for translating the user-level configuration or control commands into the internal representation defined by `tc_sfq_qopt_v1`.

I'm anticipating finding a section within `sfq_change` that deals with argument parsing or option handling. This is where the data from `tc_sfq_qopt_v1` will likely be read, processed, and then used to modify the state or parameters of the SFQ queuing discipline. I'll be on the lookout for functions or data structures within `sfq_change` that are directly populated by fields from `tc_sfq_qopt_v1`, or that contain logic dependent on its values.

Essentially, I'm trying to establish the data flow: how information gets *into* `tc_sfq_qopt_v1` and then how `sfq_change` *uses* that information. Understanding this parsing mechanism is key to grasping the overall behavior and configuration capabilities of the SFQ implementation.


489/4 2026/08/15 18:48 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:630 LineCount:50]

Results:
map[Contents: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
]

490/4 2026/08/15 18:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 16138
							output: 38
							thoughts: 89
						

Thoughts:
**My Thought Process on RED Check Parameters**

Okay, so my initial observation is about the conditional execution of `red_check_params`. It seems to be tied directly to the presence of `ctl_v1`. My immediate question then becomes: what does the state of `ctl_v1` signify in relation to the RED (Reduced Error Detection, I'm assuming?) functionality? Specifically, I'm zeroing in on `ctl_v1->qth_min`. Does a specific value of `qth_min` dictate whether RED is even considered?

It appears my hypothesis is confirmed: if `ctl_v1->qth_min` is set to 0, it effectively disables the RED mechanism. This is a critical piece of information for understanding the control flow and the implications of parameter settings. So, the crucial next step in my analysis is to trace the consequences and behavior of the system when `qth_min` is indeed 0. What does this imply for subsequent checks, data processing, or even error handling? I need to fully explore this scenario to understand the boundaries and operational modes of this system.


491/4 2026/08/15 18:48 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:680 LineCount:50]

Results:
map[Contents: 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
]

492/4 2026/08/15 18:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 17035
							output: 37
							thoughts: 920
						

Thoughts:
**My Thought Process on SFQ Configuration**

Okay, so I'm trying to configure an SFQ (Stochastic Fairness Queuing) instance and I've been going through the existing code, specifically looking at how `ctl_v1` influences things. It seems that if `ctl_v1` is present, it dictates a `maxdepth` of 1 for the SFQ queue. This is a crucial parameter, and it also implies that `ctl_v1->depth` should be set to 1.

Concurrently, I'm looking at how `limit` should be set. The target value appears to be 127, or at least something greater than 1 to be meaningful. Following that, I've noted down that `divisor` should be 1024, `flows` should be 127, and `perturb_period` should be 1. These all seem to be standard parameters for a basic SFQ setup when a specific version control object (`ctl_v1`) is involved.

To confirm my understanding, I'm reviewing the `batch_add_sfq` function from a previous iteration. Looking at the structure `tc_sfq_qopt_v1`, I see that it has a `.v0` member, which itself contains a `limit` field, and then there's also a `.depth` field directly in `tc_sfq_qopt_v1`. The code I'm examining sets `opt.v0.limit = 127` and `opt.depth = 1`. This aligns with my initial deductions. The SFQ change mechanism (`sfq_change`) apparently uses `ctl->limit` which maps to `v0.limit`, so setting `v0.limit` to 127 is indeed the correct path.

Now, shifting gears to the HTB class setup, I'm referencing the `batch_add_htb_class` function from the previous attempt. Here, I notice that `tc_htb_opt` contains `rate` and `ceil` fields, both of which are `struct tc_ratespec`. This means I need to delve into the definition of `struct tc_ratespec` to understand the exact parameters required for these rate specifications.


493/4 2026/08/15 18:48 tool grepper
0m Args:
map[Expression:struct tc_ratespec PathPrefix:include/uapi/linux/pkt_sched.h]

Results:
map[Output:include/uapi/linux/pkt_sched.h=84=enum tc_link_layer {
--
include/uapi/linux/pkt_sched.h-90-
include/uapi/linux/pkt_sched.h:91:struct tc_ratespec {
include/uapi/linux/pkt_sched.h-92-	unsigned char	cell_log;
--
include/uapi/linux/pkt_sched.h=183=struct tc_tbf_qopt {
include/uapi/linux/pkt_sched.h:184:	struct tc_ratespec rate;
include/uapi/linux/pkt_sched.h:185:	struct tc_ratespec peakrate;
include/uapi/linux/pkt_sched.h-186-	__u32		limit;
--
include/uapi/linux/pkt_sched.h=409=struct tc_htb_opt {
include/uapi/linux/pkt_sched.h:410:	struct tc_ratespec 	rate;
include/uapi/linux/pkt_sched.h:411:	struct tc_ratespec 	ceil;
include/uapi/linux/pkt_sched.h-412-	__u32	buffer;
]

494/4 2026/08/15 18:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 18296
							output: 39
							thoughts: 11
						

Thoughts:
**My Deep Dive into `struct tc_ratespec`**

Alright, so my mind immediately goes to `struct tc_ratespec`. I'm thinking about the intricacies of traffic control, the nuances of how we shape and manage data flow. This structure, to me, isn't just a collection of fields; it's the very embodiment of the parameters that govern bandwidth, latency, and packet dropping decisions. I'm already picturing its members, the integers and flags that meticulously define rate limiting, the ceiling on how much data can be sent, and the perceived rate of the network link itself. It’s about understanding the data it holds and, more importantly, how that data translates into real-world network behavior. I'm considering its role in the kernel's traffic control subsystem – how it's passed around, interpreted, and ultimately used to enforce policy. I'm thinking about the different types of ratespecs I might encounter – is it a simple token bucket, or something more complex? What about the units? Are we talking bits per second, packets per second, bytes per second? This structure is the key to unlocking those details and ensuring my traffic control configurations are precisely what I intend them to be.


495/4 2026/08/15 18:48 tool read-file
0m Args:
map[File:include/uapi/linux/pkt_sched.h FirstLine:90 LineCount:15]

Results:
map[Contents:  90:	
  91:	struct tc_ratespec {
  92:		unsigned char	cell_log;
  93:		__u8		linklayer; /* lower 4 bits */
  94:		unsigned short	overhead;
  95:		short		cell_align;
  96:		unsigned short	mpu;
  97:		__u32		rate;
  98:	};
  99:	
 100:	#define TC_RTAB_SIZE	1024
 101:	
 102:	struct tc_sizespec {
 103:		unsigned char	cell_log;
 104:		unsigned char	size_log;
]

496/4 2026/08/15 18:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 18522
							output: 32
							thoughts: 194
						

Thoughts:
**My Thought Process Regarding HTB and SFQ Configuration**

Okay, so I'm looking at this configuration and the initial thought is about the `rate` parameter. I see it's defined as `__u32`, and the specific assignment `.rate = { .rate = 1, .linklayer = 1 }` appears syntactically correct, aligning with the expected type.

However, a crucial detail from the prompt immediately jumps out at me. It explicitly states: "Widen the race window: Create a much larger number of HTB classes (e.g., 10,000) and attach the SFQ qdisc to **one of the last classes**." This is a significant refinement. My initial, perhaps more naive, inclination might have been to apply SFQ to *all* the classes I'm creating. But that would be a mistake, and a rather large one at that.

If I were to attach SFQ to all 10,000 classes, the sheer volume of netlink messages required to set this up would be astronomical. I'm picturing the `batch_send` operation potentially failing due to the sheer size, or at the very least, taking an unacceptably long time to complete. This would be a severe performance bottleneck and a likely point of failure in the setup process.

Then, my mind drifts to the cleanup process. I recall that `htb_destroy` is responsible for dismantling the HTB structure. I need to consider how it handles its children. I'm thinking, if a particular HTB class doesn't have any child qdiscs attached to it, `htb_destroy` will simply proceed to remove that class without any further complication. This is good to keep in mind as I design the structure. I should quickly verify this assumption by looking at the `htb_destroy` implementation within `net/sched/sch_htb.c` to ensure my understanding of its behavior is accurate and that I'm not overlooking any dependencies or side effects related to child qdiscs during destruction.


497/4 2026/08/15 18:48 tool grepper
0m Args:
map[Expression:htb_destroy PathPrefix:net/sched/sch_htb.c]

Results:
map[Output:net/sched/sch_htb.c=1052=static int htb_init(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_htb.c-1147-
net/sched/sch_htb.c:1148:	/* Defer this assignment, so that htb_destroy skips offload-related
net/sched/sch_htb.c-1149-	 * parts (especially calling ndo_setup_tc) on errors.
--
net/sched/sch_htb.c=1531=static void htb_parent_to_leaf_offload(struct Qdisc *sch,
--
net/sched/sch_htb.c-1543-
net/sched/sch_htb.c:1544:static int htb_destroy_class_offload(struct Qdisc *sch, struct htb_class *cl,
net/sched/sch_htb.c-1545-				     bool last_child, bool destroying,
--
net/sched/sch_htb.c-1559-	/* When destroying, caller qdisc_graft grafts the new qdisc and invokes
net/sched/sch_htb.c:1560:	 * qdisc_put for the qdisc being destroyed. htb_destroy_class_offload
net/sched/sch_htb.c-1561-	 * does not need to graft or qdisc_put the qdisc being destroyed.
--
net/sched/sch_htb.c-1606-
net/sched/sch_htb.c:1607:static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
net/sched/sch_htb.c-1608-{
--
net/sched/sch_htb.c-1617-
net/sched/sch_htb.c:1618:static void htb_destroy(struct Qdisc *sch)
net/sched/sch_htb.c-1619-{
--
net/sched/sch_htb.c-1629-	qdisc_watchdog_cancel(&q->watchdog);
net/sched/sch_htb.c:1630:	/* This line used to be after htb_destroy_class call below
net/sched/sch_htb.c-1631-	 * and surprisingly it worked in 2.4. But it must precede it
--
net/sched/sch_htb.c-1652-				if (!q->offload) {
net/sched/sch_htb.c:1653:					htb_destroy_class(sch, cl);
net/sched/sch_htb.c-1654-					continue;
--
net/sched/sch_htb.c-1664-				last_child = htb_parent_last_child(cl);
net/sched/sch_htb.c:1665:				htb_destroy_class_offload(sch, cl, last_child,
net/sched/sch_htb.c-1666-							  true, NULL);
--
net/sched/sch_htb.c-1672-					htb_parent_to_leaf(sch, cl, NULL);
net/sched/sch_htb.c:1673:				htb_destroy_class(sch, cl);
net/sched/sch_htb.c-1674-			}
--
net/sched/sch_htb.c=1696=static int htb_delete(struct Qdisc *sch, unsigned long arg,
--
net/sched/sch_htb.c-1705-	/* TODO: why don't allow to delete subtree ? references ? does
net/sched/sch_htb.c:1706:	 * tc subsys guarantee us that in htb_destroy it holds no class
net/sched/sch_htb.c-1707-	 * refs so that we can remove children safely there ?
--
net/sched/sch_htb.c-1717-	if (q->offload) {
net/sched/sch_htb.c:1718:		err = htb_destroy_class_offload(sch, cl, last_child, false,
net/sched/sch_htb.c-1719-						extack);
--
net/sched/sch_htb.c-1757-
net/sched/sch_htb.c:1758:	htb_destroy_class(sch, cl);
net/sched/sch_htb.c-1759-	return 0;
--
net/sched/sch_htb.c=2143=static struct Qdisc_ops htb_qdisc_ops __read_mostly = {
--
net/sched/sch_htb.c-2152-	.reset		=	htb_reset,
net/sched/sch_htb.c:2153:	.destroy	=	htb_destroy,
net/sched/sch_htb.c-2154-	.dump		=	htb_dump,
]

498/4 2026/08/15 18:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 19968
							output: 38
							thoughts: 17
						

Thoughts:
**My Thought Process Regarding `htb_destroy` and `htb_destroy_class`**

Alright, my immediate impulse is to dive into the code, to get a direct understanding of what `htb_destroy` and `htb_destroy_class` actually *do*. I need to read them, to see their implementation details firsthand. I'm not just looking for a surface-level description; I want to grasp the mechanics, the underlying logic, and how they interact with the data structures they're designed to manage. This isn't about guessing; it's about concrete analysis. I anticipate that these functions will be crucial for proper resource management, likely involving deallocation of memory, cleanup of internal states, and ensuring no lingering dependencies or dangling pointers. Understanding their specifics will illuminate the overall lifecycle management of whatever "htb" represents – perhaps a hash table, a data structure, or a class instance. I need to scrutinize them to ensure they're robust, efficient, and free of any potential memory leaks or other undesirable side effects.


499/4 2026/08/15 18:48 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1607 LineCount:50]

Results:
map[Contents:1607:	static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
1608:	{
1609:		if (!cl->level) {
1610:			WARN_ON(!cl->leaf.q);
1611:			qdisc_put(cl->leaf.q);
1612:		}
1613:		gen_kill_estimator(&cl->rate_est);
1614:		tcf_block_put(cl->block);
1615:		kfree(cl);
1616:	}
1617:	
1618:	static void htb_destroy(struct Qdisc *sch)
1619:	{
1620:		struct net_device *dev = qdisc_dev(sch);
1621:		struct tc_htb_qopt_offload offload_opt;
1622:		struct htb_sched *q = qdisc_priv(sch);
1623:		struct hlist_node *next;
1624:		bool nonempty, changed;
1625:		struct htb_class *cl;
1626:		unsigned int i;
1627:	
1628:		cancel_work_sync(&q->work);
1629:		qdisc_watchdog_cancel(&q->watchdog);
1630:		/* This line used to be after htb_destroy_class call below
1631:		 * and surprisingly it worked in 2.4. But it must precede it
1632:		 * because filter need its target class alive to be able to call
1633:		 * unbind_filter on it (without Oops).
1634:		 */
1635:		tcf_block_put(q->block);
1636:	
1637:		for (i = 0; i < q->clhash.hashsize; i++) {
1638:			hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
1639:				tcf_block_put(cl->block);
1640:				cl->block = NULL;
1641:			}
1642:		}
1643:	
1644:		do {
1645:			nonempty = false;
1646:			changed = false;
1647:			for (i = 0; i < q->clhash.hashsize; i++) {
1648:				hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
1649:							  common.hnode) {
1650:					bool last_child;
1651:	
1652:					if (!q->offload) {
1653:						htb_destroy_class(sch, cl);
1654:						continue;
1655:					}
1656:	
]

500/4 2026/08/15 18:48 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 20780
							output: 38
							thoughts: 320
						

Thoughts:
**My Thought Process Regarding `htb_destroy` and Class Cleanup**

Okay, so my initial thought was that `htb_destroy` was going to systematically go through every single class and call `htb_destroy_class` for each one. And, I realized, if I have a massive number of classes – say, 10,000 – this iteration is going to be a significant operation in itself.

But then I looked closer at the `htb_destroy` loop structure:

```c
	do {
		nonempty = false;
		changed = false;
		for (i = 0; i < q->clhash.hashsize; i++) {
			hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
						  common.hnode) {
				bool last_child;

				if (!q->offload) {
					htb_destroy_class(sch, cl);
					continue;
				}
```

I noticed a critical detail here: if `!q->offload` is true, it jumps directly into `htb_destroy_class` and then immediately `continue`s to the next class in the loop. This means `htb_destroy_class` is indeed called for every class in this non-offloaded scenario.

Now, this is where a potential performance concern arises. I know that `htb_destroy_class` itself calls `qdisc_put(cl->leaf.q)`. So, even if only the *very last* of my 10,000 classes actually has an SFQ qdisc attached to it, the process of destroying the first 9,999 classes will still involve calling `qdisc_put` for each of them, even if those `qdisc_put` calls don't do much because there's no qdisc to release. This strikes me as potentially inefficient, as I'm performing this operation repeatedly for classes that might not actually have any significant cleanup work associated with their leaf qdisc.

My next question became: what happens to the class *after* `htb_destroy_class` is called? Does it actually get removed from the hash table? Looking at the code, it doesn't seem like `htb_destroy_class` itself handles the removal from the hash. This led me to wonder if there's a separate step for hash table cleanup later on, and indeed, I see `qdisc_class_hash_destroy(&q->clhash)` is called subsequently. This confirms my suspicion that the hash table itself is dealt with separately from the individual class destruction in terms of removal.


501/4 2026/08/15 18:49 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1657 LineCount:50]

Results:
map[Contents:1657:					nonempty = true;
1658:	
1659:					if (cl->level)
1660:						continue;
1661:	
1662:					changed = true;
1663:	
1664:					last_child = htb_parent_last_child(cl);
1665:					htb_destroy_class_offload(sch, cl, last_child,
1666:								  true, NULL);
1667:					qdisc_class_hash_remove(&q->clhash,
1668:								&cl->common);
1669:					if (cl->parent)
1670:						cl->parent->children--;
1671:					if (last_child)
1672:						htb_parent_to_leaf(sch, cl, NULL);
1673:					htb_destroy_class(sch, cl);
1674:				}
1675:			}
1676:		} while (changed);
1677:		WARN_ON(nonempty);
1678:	
1679:		qdisc_class_hash_destroy(&q->clhash);
1680:		__qdisc_reset_queue(&q->direct_queue);
1681:	
1682:		if (q->offload) {
1683:			offload_opt = (struct tc_htb_qopt_offload) {
1684:				.command = TC_HTB_DESTROY,
1685:			};
1686:			htb_offload(dev, &offload_opt);
1687:		}
1688:	
1689:		if (!q->direct_qdiscs)
1690:			return;
1691:		for (i = 0; i < q->num_direct_qdiscs && q->direct_qdiscs[i]; i++)
1692:			qdisc_put(q->direct_qdiscs[i]);
1693:		kfree(q->direct_qdiscs);
1694:	}
1695:	
1696:	static int htb_delete(struct Qdisc *sch, unsigned long arg,
1697:			      struct netlink_ext_ack *extack)
1698:	{
1699:		struct htb_sched *q = qdisc_priv(sch);
1700:		struct htb_class *cl = (struct htb_class *)arg;
1701:		struct Qdisc *new_q = NULL;
1702:		int last_child = 0;
1703:		int err;
1704:	
1705:		/* TODO: why don't allow to delete subtree ? references ? does
1706:		 * tc subsys guarantee us that in htb_destroy it holds no class
]

502/4 2026/08/15 18:49 llm repro-generator
1m Model:
gemini-3.1-pro-preview

Tokens:
							input: 21877
							output: 34
							thoughts: 8658
						

Thoughts:
**My Thought Process on Exploiting the HTB/SFQ Timer Race Condition**

Okay, so the core of this problem lies in a subtle race condition within the Linux kernel's traffic control (tc) subsystem, specifically involving the `htb` (Hierarchical Token Bucket) and `sfq` (Stochastic Fairness Queuing) queueing disciplines. I've been analyzing the provided information and the C code structure to understand how to trigger and exploit this.

My primary goal is to reliably trigger a scenario where a `RTM_DELQDISC` operation for an HTB class happens *exactly* when its associated SFQ timer is about to expire and perform some internal cleanup or re-hashing. If this overlap occurs, the kernel can get into an inconsistent state, potentially leading to issues like memory corruption or crashes.

**Understanding the Destruction Flow:**

I'm looking at the `htb_destroy_class` function. The key insight here is what happens when `!q->offload` is true. It calls `htb_destroy_class` and then `continue`. My initial thought was, "Wait, if it just calls `continue`, doesn't that mean it *doesn't* remove it from the hash table immediately?" However, I then realized that `qdisc_class_hash_destroy` *will* eventually free the hash table itself, but the iteration through classes will still happen. This means it's essentially iterating over all classes and destroying them one by one. If I have, say, 10,000 classes, this destruction process itself could take a noticeable amount of time.

**The Role of Default Qdiscs:**

Now, I need to consider what happens to the `leaf.q` of these HTB classes. If I'm creating 10,000 HTB classes, and I haven't explicitly attached a different qdisc as their leaf, they'll typically get a default `pfifo` or `bfifo`. The critical part is that `htb_destroy_class` *does* call `qdisc_put(cl->leaf.q)`. So, each of those 10,000 classes will indeed have a default qdisc that needs to be put.

**The Scale of the Problem:**

Creating 10,000 classes sounds like a lot, and it could indeed take a significant amount of time. This is where the `netlink` batching comes into play. If the netlink batch message becomes too large, it could be problematic for the kernel to process efficiently. The prompt suggests using 5000 classes, which seems like a reasonable balance to widen the "destruction window" without overwhelming the system immediately.

**The Prompt's Guidance and the Reproducer Dilemma:**

The prompt explicitly mentions increasing the number of HTB classes to 5000 to widen the destruction window and using a "carefully calculated sleep with jitter" to overlap the `RTM_DELQDISC` with SFQ timers. Crucially, it also points to a C reproducer in the "Strategy" section.

This is where I hit a snag: the reproducer in the "Strategy" section uses `system("ip link add ...")` and `system("tc -batch ...")`. However, the prompt has a very strict constraint: "Do NOT execute shell commands or run external binaries". This means I *cannot* use `system()`, `popen()`, or any `exec` family functions. I *must* perform all operations using standard Linux system calls, which for network configuration means leveraging `netlink`.

**Revising the Reproducer Strategy:**

Fortunately, I've already worked with netlink batching in previous attempts (or have a good understanding of how to do it). So, my task becomes combining the *logic* of the provided `tc -batch` reproducer (creating HTB classes, attaching SFQ qdiscs, sending traffic to specific classes) with my existing netlink batching code.

**Netlink Batching and Chunking:**

I've reviewed my netlink batching code. It looks solid for constructing `RTM_NEWQDISC` and `RTM_NEWTCLASS` messages. The core functions `batch_init`, `batch_begin`, `batch_end`, `addattr_l`, `addattr_str`, `addattr_nest`, and `addattr_nest_end` are essential.

The prompt's reproducer adds an SFQ qdisc to *each* of the 5000 classes. This means I'll be generating a lot of netlink messages: 1 root HTB, 5000 HTB classes, and 5000 SFQ qdiscs. That's 10001 messages in total. While the total message size (around 1.2 MB) fits within a typical 2MB netlink buffer, sending a single massive `send()` call might still be problematic for the kernel's processing pipeline.

To mitigate this, I'll need to send the netlink batch in smaller chunks. Sending a chunk of, say, 1000 messages (500 classes + their SFQ) at a time seems like a robust approach. This way, I can manage the `send()` calls and potentially wait for ACKs on the last message of each chunk to ensure they've been processed by the kernel.

**Error Handling and Synchronization:**

The `batch_send` function I have incorporates receiving and checking for `NLMSG_ERROR`. If I modify it to accept an `expected_seq` number, I can set the `NLM_F_ACK` flag on the last message of a chunk and wait for its specific ACK, ensuring that chunk is processed before moving to the next. This gives me a better handle on the kernel's state.

**Infrastructure for the Test:**

To set up the test environment, I'll need to create dummy network interfaces. My `create_dummy` function, using `RTM_NEWLINK` via netlink, will handle this. I'll also need `bring_up` (using `ioctl` with `SIOCSIFFLAGS`) and `get_ifindex` (using `ioctl` with `SIOCGIFINDEX`) to make these interfaces operational.

**The Racer Thread's Logic:**

The core of the exploit logic will reside in a "racer" thread. This thread will:
1.  Create a dummy interface for itself.
2.  Bring it up and get its index.
3.  Establish a netlink socket and a raw packet socket (`AF_PACKET`).
4.  Enter a loop, performing the following in each iteration:
    *   **Delete the root qdisc:** This ensures a clean slate before adding new ones. I have a `del_qdisc_root` function for this.
    *   **Add the HTB root qdisc:** Using my `batch_add_htb_root` function.
    *   **Add HTB classes and SFQ qdiscs in chunks:** This is where the 5000 classes will be created. For each class, I'll attach an SFQ qdisc using `batch_add_htb_class` and `batch_add_sfq`. I'll send these in chunks of 500 messages, marking the last message of each chunk with `NLM_F_ACK` and then calling `batch_send`.
    *   **Send traffic to the *last* few classes:** To trigger the timer expiration, I need to send packets to the classes that are about to be destroyed. The prompt's reproducer sends to the last 200 classes, so I'll replicate this. Crucially, I'll set the `SO_PRIORITY` on the raw socket to match the `classid` of the HTB class. This is how the packets get directed to the correct qdisc for SFQ.
    *   **Calculate and sleep:** This is the "carefully calculated sleep with jitter" part. I'll measure the time it takes to create the qdiscs and send the packets. Then, I'll sleep for a duration calculated to try and align the destruction of the *last* SFQ qdiscs with their timers. The jitter is important to vary the timing slightly, increasing the chances of hitting the narrow race window.
    *   **Delete the root qdisc again:** To prepare for the next iteration.

**The SFQ Timer and its Interaction with Deletion:**

The key is that the SFQ timers are armed when the SFQ qdiscs are created. When `RTM_DELQDISC` is called for an HTB class (which indirectly leads to `qdisc_put` on its SFQ leaf), if that qdisc's timer is scheduled to fire *right then*, we might hit the race. The SFQ `perturb` timer, which is set to 1 second by default, will eventually expire. The goal is to have the `RTM_DELQDISC` operation coincide with this expiration.

**Refining the `batch_send`:**

My `batch_send` function needs to be robust. It should handle receiving multiple netlink messages, filtering for the specific ACK of the sequence number we're waiting for, and returning an error if an `NLMSG_ERROR` occurs for that sequence.

**Finalizing the C Code:**

I'll consolidate all the necessary helper functions (`addattr_l`, `addattr_str`, etc.), the batching logic, the interface creation/management functions, the `del_qdisc_root`, and the `racer` thread itself into a single C file. I'll ensure all necessary headers (`<linux/rtnetlink.h>`, `<linux/pkt_sched.h>`, etc.) are included.

The overall strategy is to use netlink to programmatically create a large number of HTB classes, each with an SFQ leaf qdisc, and then carefully time a delete operation while simultaneously sending traffic to the last few classes. The `usleep` with jitter is the critical element for hitting the race window.


503/4 2026/08/15 18:50 tool grepper
0m Args:
map[Expression:sfq_init PathPrefix:net/sched/sch_sfq.c]

Results:
map[Output:net/sched/sch_sfq.c=765=static void sfq_destroy(struct Qdisc *sch)
--
net/sched/sch_sfq.c-776-
net/sched/sch_sfq.c:777:static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
net/sched/sch_sfq.c-778-		    struct netlink_ext_ack *extack)
--
net/sched/sch_sfq.c=956=static struct Qdisc_ops sfq_qdisc_ops __read_mostly = {
--
net/sched/sch_sfq.c-962-	.peek		=	qdisc_peek_dequeued,
net/sched/sch_sfq.c:963:	.init		=	sfq_init,
net/sched/sch_sfq.c-964-	.reset		=	sfq_reset,
]

504/4 2026/08/15 18:50 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 30799
							output: 38
							thoughts: 10
						

Thoughts:
**My Thought Process on `sfq_init`**

Alright, so my immediate impulse here is to dive right into the `sfq_init` function. I'm assuming this is the entry point for setting up the Stochastic Fairness Queueing (SFQ) mechanism. My primary objective is to understand precisely *how* SFQ gets initialized. This means I'm looking for the fundamental data structures that are allocated, the initial parameters that are configured, and any other setup routines that are invoked. I want to get a clear picture of the "blank slate" upon which SFQ will operate. Is it just a few counters, or are there more complex structures like hash tables or lists being prepared? What default values are being applied? Understanding the initialization is crucial for grasping the subsequent behavior of the algorithm. I'll be paying close attention to memory allocation and any flags or state variables that are set at this stage.


505/4 2026/08/15 18:50 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:777 LineCount:25]

Results:
map[Contents: 777:	static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
 778:			    struct netlink_ext_ack *extack)
 779:	{
 780:		struct sfq_sched_data *q = qdisc_priv(sch);
 781:		int i;
 782:		int err;
 783:	
 784:		q->sch = sch;
 785:		timer_setup(&q->perturb_timer, sfq_perturbation, TIMER_DEFERRABLE);
 786:	
 787:		err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
 788:		if (err)
 789:			return err;
 790:	
 791:		for (i = 0; i < SFQ_MAX_DEPTH + 1; i++) {
 792:			q->dep[i].next = i + SFQ_MAX_FLOWS;
 793:			q->dep[i].prev = i + SFQ_MAX_FLOWS;
 794:		}
 795:	
 796:		q->limit = SFQ_MAX_DEPTH;
 797:		q->maxdepth = SFQ_MAX_DEPTH;
 798:		q->cur_depth = 0;
 799:		q->tail = NULL;
 800:		q->divisor = SFQ_DEFAULT_HASH_DIVISOR;
 801:		q->maxflows = SFQ_DEFAULT_FLOWS;
]

506/4 2026/08/15 18:50 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 31260
							output: 38
							thoughts: 27
						

Thoughts:
**My Thought Process on Timer Armed Status**

Okay, so my initial thought here is a crucial one, and it’s about the state of the timer. I see that `timer_setup` has been invoked, which is the function responsible for configuring and initializing the timer hardware or software mechanism. However, just because it's set up doesn't automatically mean it's *active* or *ready to go*. My immediate concern is whether the timer has actually been *armed*.

To resolve this, I need to trace the control flow and examine the logic that dictates when the timer transitions from a configured state to an armed state. My next step is to pivot my investigation to the `sfq_change` function. I suspect this function is where the arming logic resides, or at least influences it. I'll be looking within `sfq_change` for any calls to timer arming routines, or conditional checks that might prevent arming if certain criteria aren't met. My goal is to confirm if the timer is indeed armed and ready to trigger its associated events, or if there's a gap in the sequence that needs addressing.


507/4 2026/08/15 18:50 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:730 LineCount:25]

Results:
map[Contents: 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 754:	
]

508/4 2026/08/15 18:50 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 31688
							output: 32
							thoughts: 1721
						

Thoughts:
**My Thought Process on Timer Synchronization**

Okay, let me walk through how I'm thinking about this timer synchronization problem.

It all started with noticing that `mod_timer` is called within `sfq_change`. This immediately tells me that the timer is armed whenever `sfq_change` is invoked. And `sfq_change` is triggered during `RTM_NEWQDISC`, which is part of the qdisc setup process.

My initial approach involved sending the netlink messages in chunks. This is a common practice to avoid hitting message buffer limits. The consequence of chunking is that the timers for the *last* chunk get armed only after that last chunk has been fully processed.

Now, the timing measurement. I was measuring `start` *before* sending the first chunk and `end` *after* sending all the packets. This meant `elapsed_us` represented the total time to send all the chunks and packets. The problem arose because the timers for the last chunk would fire 1,000,000 microseconds (1 second) after that last chunk was processed, *not* 1 second after my initial `start` measurement.

Consequently, calculating `sleep_us` as `1000000 - elapsed_us` would likely result in sleeping for *less* time than needed. Why? Because `elapsed_us` included the time spent sending the earlier chunks, which is irrelevant to when the *last* chunk's timer was armed. This would lead to the timer firing *before* my intended sleep period concluded.

I realized a simpler approach: I could just measure `start` right before sending the packets. This makes sense because the last chunk contains the last classes, and I'm sending packets to those last classes.

But then I had a moment of doubt. If I measure `start` immediately before sending packets, it's very close to when the last chunk was processed. Let's look at the code snippet:

```c
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 50; p++) {
                udp->source = htons(p);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 200000; // up to 200ms jitter
            usleep(sleep_us + jitter);
        }
```

The problem with this is that if I sleep for `1000000 - elapsed_us`, I'm essentially trying to sleep until 1 second *after* my `start` measurement. However, the timer was armed *before* this `start` measurement – specifically, during the processing of the last chunk. This means the timer would fire *before* my sleep call finishes. If the timer fires before `del_qdisc_root` is even called, it will simply rehash, and since the qdisc is still present, `qdisc_tree_reduce_backlog` will succeed. This is *not* what I want. I need the timer to fire *during* the execution of `del_qdisc_root`.

So, the crucial insight is that I need to sleep for slightly *less* than 1 second measured from when the timer was armed. This is where the idea of measuring `start` *before* the last chunk is sent comes into play.

Let's reconsider the qdisc addition loop:

```c
        struct timespec start, end;
        
        // Add classes and qdiscs in chunks to avoid buffer overflow
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
            struct nlmsghdr *n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
            
            if (c % 500 == 0 || c == NUM_CLASSES) {
                n->nlmsg_flags |= NLM_F_ACK;
                uint32_t expected_seq = n->nlmsg_seq;
                if (c == NUM_CLASSES) {
                    clock_gettime(CLOCK_MONOTONIC, &start); // <--- Measure start here
                }
                if (batch_send(nl_fd, &b, expected_seq) < 0) {
                    printf("[-] batch_send failed\n");
                }
                b.offset = 0; // reset buffer for next chunk
            }
        }
```

By measuring `start` right before sending the *last* chunk, the timer gets armed during `batch_send`. Then I send packets, and *then* I measure `end`. The `elapsed_us` is the time from `start` to `end`. My goal is to sleep until a point *slightly before* 1 second has passed since `start`.

This led me to this sleep calculation:

```c
        long sleep_us = 990000 - elapsed_us; // Aim for ~10ms before 1s
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 30000; // 0 to 30ms jitter
            usleep(sleep_us + jitter);
        }
```

This means I'd wake up somewhere between 990ms and 1020ms after `start`. This should perfectly overlap with the timer firing at the 1000ms mark.

I then refined this slightly for a bit more margin:

```c
        long sleep_us = 980000 - elapsed_us; // Aim for ~20ms before 1s
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 40000; // 0 to 40ms jitter
            usleep(sleep_us + jitter);
        }
```

This results in waking up between 980ms and 1020ms after `start`. This feels like a good window to ensure the timer fires while `del_qdisc_root` is executing.

And this brings me to the final consideration: the execution time of `del_qdisc_root` itself. With `NUM_CLASSES` set to 5000, `htb_destroy` will iterate through all of them. If I wake up at, say, 980ms, and `del_qdisc_root` takes 10-50ms to iterate through the classes, the timer firing at 1000ms will land smack in the middle of that destruction process. This is exactly the scenario I'm aiming for to trigger the desired behavior.

One last check: the packet sending mechanism.

```c
        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 50; p++) {
                udp->source = htons(p);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
```

I noticed that `SO_PRIORITY` sets `skb->priority`. And HTB, if no filters are attached, uses `skb->priority` for classification. I need to confirm if HTB indeed classifies by `skb->priority` by default. A quick look at `htb_classify` should clarify this.


509/4 2026/08/15 18:50 tool grepper
0m Args:
map[Expression:htb_classify PathPrefix:net/sched/sch_htb.c]

Results:
map[Output:net/sched/sch_htb.c=198=static unsigned long htb_search(struct Qdisc *sch, u32 handle)
--
net/sched/sch_htb.c-205-/**
net/sched/sch_htb.c:206: * htb_classify - classify a packet into class
net/sched/sch_htb.c-207- * @skb: the socket buffer
--
net/sched/sch_htb.c-219- */
net/sched/sch_htb.c:220:static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
net/sched/sch_htb.c-221-				      int *qerr)
--
net/sched/sch_htb.c=620=static int htb_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_htb.c-625-	struct htb_sched *q = qdisc_priv(sch);
net/sched/sch_htb.c:626:	struct htb_class *cl = htb_classify(skb, sch, &ret);
net/sched/sch_htb.c-627-
]

510/4 2026/08/15 18:50 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 33741
							output: 37
							thoughts: 9
						

Thoughts:
**My Thought Process on Examining `htb_classify`**

Alright, so the first thing on my agenda is to dive into `htb_classify`. I need to get a solid understanding of what this function or module is doing, what its purpose is, and how it operates. My immediate thought is to parse through its code, looking for the core logic. I'll be paying close attention to:

*   **Input Parameters:** What data is it expecting to receive? Are there specific formats or types that are crucial for its operation? Understanding the inputs will tell me a lot about what problem it's designed to solve.
*   **Internal Logic/Algorithms:** This is the heart of it. I'll be dissecting the actual steps it takes. Is it performing some kind of statistical analysis, machine learning inference, rule-based decision-making, or something else entirely? I'll be looking for patterns, conditional statements, and any external libraries or functions it calls that might give clues about its methodology.
*   **Output:** What is it producing? Is it a classification label, a probability score, a set of confidence intervals, or some other form of output? The output will confirm what it's actually achieving.
*   **Dependencies:** Does it rely on other modules or external services? This is important for understanding its context within a larger system and for any potential debugging or deployment considerations.
*   **Error Handling:** How does it behave when things go wrong? Does it raise specific exceptions, return default values, or log errors? This is a key indicator of robustness.
*   **Configuration:** Are there any configuration files or settings that influence its behavior? This could be a significant factor in how it's applied or customized.

Ultimately, my goal in reading `htb_classify` is to build a comprehensive mental model of its functionality, its strengths, and its limitations, so I can then assess its relevance and potential impact.


511/4 2026/08/15 18:50 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:220 LineCount:25]

Results:
map[Contents: 220:	static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
 221:					      int *qerr)
 222:	{
 223:		struct htb_sched *q = qdisc_priv(sch);
 224:		struct htb_class *cl;
 225:		struct tcf_result res;
 226:		struct tcf_proto *tcf;
 227:		int result;
 228:	
 229:		/* allow to select class by setting skb->priority to valid classid;
 230:		 * note that nfmark can be used too by attaching filter fw with no
 231:		 * rules in it
 232:		 */
 233:		if (skb->priority == sch->handle)
 234:			return HTB_DIRECT;	/* X:0 (direct flow) selected */
 235:		cl = htb_find(skb->priority, sch);
 236:		if (cl) {
 237:			if (cl->level == 0)
 238:				return cl;
 239:			/* Start with inner filter chain if a non-leaf class is selected */
 240:			tcf = rcu_dereference_bh(cl->filter_list);
 241:		} else {
 242:			tcf = rcu_dereference_bh(q->filter_list);
 243:		}
 244:	
]

512/4 2026/08/15 18:50 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 34181
							output: 40
							thoughts: 1637
						

Thoughts:
**My Thought Process Regarding TC Class and SFQ Configuration**

Okay, so I'm looking at this piece of code, and the first thing that jumps out at me is the use of `htb_find(skb->priority, sch)`. This tells me that the `skb->priority` field is being used to match against the class ID. My immediate reaction is, "Yes, this is perfect!" If the packet's priority aligns with the class ID, it should fall into the correct queueing discipline.

Then I pause to confirm my understanding of how `TC_H_MAKE` works. I recall that `TC_H_MAKE(1<<16, c)` effectively creates a class ID of `1:c`. Given that the root qdisc handle is typically `1:0`, this means that setting `skb->priority` to `TC_H_MAKE(1<<16, c)` will indeed match a class identified as `1:c`. This confirms that my initial assumption is correct and the logic holds.

Next, I decide to re-examine the `batch_add_sfq` function, specifically the `struct tc_sfq_qopt_v1` it's using. I pull up the definition and see the `v0` substructure and fields like `depth`, `headdrop`, and then further down, the SFQRED parameters.

This leads me to a point of concern: is `struct tc_sfq_qopt_v1` actually defined in the environment where this code will run? I'm not entirely certain if the target system's `<linux/pkt_sched.h>` will have this specific structure readily available, especially considering it might be an older kernel or a customized build. To mitigate any potential compilation issues and ensure portability, my thought is to define my own versions of these structures with a `my_` prefix. This way, I'm guaranteeing that the necessary types are present, regardless of the system's headers.

So, I draft out these local definitions:

```c
struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};
```

And I plan to use `struct my_tc_sfq_qopt_v1` within `batch_add_sfq`. This feels like the most robust approach to avoid "header hell."

However, I then start thinking about the HTB structures, `tc_htb_opt` and `tc_htb_glob`. My recollection is that these have been part of `<linux/pkt_sched.h>` for a very long time. Similarly, SFQ_V1, which is what `tc_sfq_qopt_v1` relates to, was introduced in kernel 3.3. Given these relatively old origins, it's highly probable that the standard header *will* contain these definitions.

So, I have a slight internal debate. Should I stick with my custom definitions for maximum safety, or trust that the standard headers will be sufficient? The latter would simplify the code. My decision then becomes a pragmatic one: while the custom definitions offer absolute certainty, the likelihood of them *not* being present is quite low. To be 100% safe, and because it doesn't really add much complexity, I decide to keep the custom definitions with the `my_` prefix. It's a small trade-off for eliminating a potential build-time headache. It doesn't hurt, and it ensures the code will compile even in the most obscure environments.

Finally, I move on to examining `batch_add_htb_class`. I'm looking at the `TCA_HTB_PARMS` attribute and its usage. My immediate thought is to confirm the specific value of `TCA_HTB_PARMS`. I know it's an enumeration value defined in `<linux/pkt_sched.h>`, and I want to be absolutely sure about its current definition. So, I make a mental note to check that header specifically for `TCA_HTB_PARMS`. This is a standard sanity check to ensure I'm referencing the correct kernel API element.


513/4 2026/08/15 18:50 tool grepper
0m Args:
map[Expression:TCA_HTB_PARMS PathPrefix:include/uapi/linux/pkt_sched.h]

Results:
map[Output:include/uapi/linux/pkt_sched.h=427=enum {
include/uapi/linux/pkt_sched.h-428-	TCA_HTB_UNSPEC,
include/uapi/linux/pkt_sched.h:429:	TCA_HTB_PARMS,
include/uapi/linux/pkt_sched.h-430-	TCA_HTB_INIT,
]

514/4 2026/08/15 18:50 llm repro-generator
2m Model:
gemini-3.1-pro-preview

Tokens:
							input: 35957
							output: 5875
							thoughts: 15342
						

Thoughts:
**The Inner Workings of the Network Packet Scheduler Race**

My thought process began by confirming the correct macro values for `TCA_HTB_PARMS` (1) and `TCA_HTB_INIT` (2), ensuring I was referencing the definitions from `<linux/pkt_sched.h>` as intended. This established a foundational understanding of the kernel's traffic control (TC) subsystem parameters.

I then dove into the core logic of the `racer` loop, meticulously examining each step. My primary concern was ensuring that the netlink messages, used to configure the traffic control queues, were correctly constructed and sent. I paid close attention to the batching mechanism, confirming that the `nl_batch` structure was being initialized and utilized appropriately. This involved understanding how `batch_begin`, `batch_end`, `addattr_l`, and `addattr_nest` work together to build complex netlink requests.

A critical point of scrutiny was the `batch_send` function and its interaction with the netlink socket. I realized the potential for race conditions if multiple netlink messages were received by the socket buffer and not fully processed. My initial concern was that an unexpected message might be consumed by a subsequent `batch_send` or `del_qdisc_root` call, leading to confusion or blocking. However, after carefully analyzing the behavior of `NLM_F_ACK` and the kernel's response patterns, I concluded that for successful operations without errors, only a single response message (the ACK) is expected per batch. This alleviated my immediate concerns about buffer overruns causing protocol desynchronization. To further enhance robustness against potential hangs, I decided to incorporate socket receive timeouts (`SO_RCVTIMEO`) on the netlink file descriptor, ensuring that `recv` would not block indefinitely.

Next, I focused on the specific TC queueing disciplines (qdiscs) being configured: HTB (Hierarchical Token Bucket) and SFQ (Stochastic Fairness Queuing). I reviewed the `batch_add_htb_root` and `batch_add_htb_class` functions to verify that the HTB parameters, such as rate, ceiling, buffer, and quantum, were set correctly according to the `struct my_tc_htb_opt` and `struct my_tc_htb_glob` definitions. Similarly, I examined `batch_add_sfq`, confirming the SFQ configuration, particularly parameters like `perturb_period`, `limit`, `divisor`, `flows`, and `quantum`. My analysis of `struct my_tc_sfq_qopt_v1` highlighted the importance of the `depth` parameter and the potential for packet drops during rehash operations due to the `headdrop` flag being zero.

The packet sending loop within `racer` also demanded detailed attention. I confirmed that the `AF_PACKET` socket was being used correctly to craft raw Ethernet frames, including IP and UDP headers. My understanding of the kernel's networking stack led me to verify that `AF_PACKET` sockets, contrary to some initial assumptions, do indeed pass through the qdisc layer via `dev_queue_xmit`. The use of `setsockopt(sock, SOL_SOCKET, SO_PRIORITY, ...)` was crucial, as it directly influences the `skb->priority` field, which is then utilized by the qdisc for classification.

A key insight came from analyzing the `udp->source` field manipulation within the packet sending loop. By incrementing the source port for each packet sent within a class, and with the SFQ qdisc configured with a `divisor` of 1024, I realized that this would inevitably lead to hash collisions. This is precisely what is needed to trigger the bug: collisions will cause SFQ to drop packets. When `qdisc_tree_reduce_backlog` is called as a result of these drops, and the HTB qdisc that was responsible for enqueueing the packet has already been deleted (due to the race condition), the kernel will issue a warning because it cannot find the qdisc in its internal lookup. I then decided to increase the number of packets sent per class to 100 (from 50) to further guarantee a high probability of these collisions, making the reproduction of the bug more reliable.

I also reviewed the timing and sleep logic within the loop. The calculation for `sleep_us` ensures that the loop attempts to maintain a consistent timing, and the inclusion of `jitter` adds a small random delay. The `usleep(100000)` call after deleting the qdisc was a deliberate measure to give the kernel's asynchronous operations time to complete, a common practice when dealing with such kernel-level races.

Finally, the multithreading aspect was considered. By creating two threads, each operating on its own isolated dummy interface (`dummy0` and `dummy1`) created within its own network namespace, I ensured that the race conditions were explored in a controlled and independent manner, minimizing interference between the threads. The careful setup of network namespaces and the creation of dummy interfaces were essential for this isolation. The inclusion of `sleep(1)` at the very end of `main` serves as a final safeguard, ensuring that any lingering kernel processes or timeouts have a chance to complete before the program exits.

Overall, my thought process was driven by a deep dive into the specifics of netlink messaging, kernel TC qdisc behavior, packet framing, and multithreading synchronization, all aimed at reliably triggering the described kernel warning.


515/4 2026/08/15 18:53 tool set-results
0m Args:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 5000

struct my_tc_ratespec {
    unsigned char cell_log;
    uint8_t linklayer;
    unsigned short overhead;
    short cell_align;
    unsigned short mpu;
    uint32_t rate;
};

struct my_tc_htb_opt {
    struct my_tc_ratespec rate;
    struct my_tc_ratespec ceil;
    uint32_t buffer;
    uint32_t cbuffer;
    uint32_t quantum;
    uint32_t prio;
};

struct my_tc_htb_glob {
    uint32_t version;
    uint32_t rate2quantum;
    uint32_t defcls;
    uint32_t debug;
    uint32_t direct_pkts;
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

#define TCA_KIND 1
#define TCA_OPTIONS 2

#define TCA_HTB_PARMS 1
#define TCA_HTB_INIT 2

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_opt hopt = {0};
    hopt.rate.rate = 1;
    hopt.rate.linklayer = 1;
    hopt.ceil.rate = 1;
    hopt.ceil.linklayer = 1;
    hopt.buffer = 1000;
    hopt.cbuffer = 1000;
    hopt.quantum = 1000;
    hopt.prio = 0;
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) return NULL;
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        
        struct timespec start, end;
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
            struct nlmsghdr *n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
            
            if (c % 500 == 0 || c == NUM_CLASSES) {
                n->nlmsg_flags |= NLM_F_ACK;
                uint32_t expected_seq = n->nlmsg_seq;
                if (c == NUM_CLASSES) {
                    clock_gettime(CLOCK_MONOTONIC, &start);
                }
                if (batch_send(nl_fd, &b, expected_seq) < 0) {
                    printf("[-] batch_send failed\n");
                }
                b.offset = 0;
            }
        }
        
        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 100; p++) {
                udp->source = htons(p);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long sleep_us = 980000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 40000;
            usleep(sleep_us + jitter);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 5000

struct my_tc_ratespec {
    unsigned char cell_log;
    uint8_t linklayer;
    unsigned short overhead;
    short cell_align;
    unsigned short mpu;
    uint32_t rate;
};

struct my_tc_htb_opt {
    struct my_tc_ratespec rate;
    struct my_tc_ratespec ceil;
    uint32_t buffer;
    uint32_t cbuffer;
    uint32_t quantum;
    uint32_t prio;
};

struct my_tc_htb_glob {
    uint32_t version;
    uint32_t rate2quantum;
    uint32_t defcls;
    uint32_t debug;
    uint32_t direct_pkts;
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

#define TCA_KIND 1
#define TCA_OPTIONS 2

#define TCA_HTB_PARMS 1
#define TCA_HTB_INIT 2

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_opt hopt = {0};
    hopt.rate.rate = 1;
    hopt.rate.linklayer = 1;
    hopt.ceil.rate = 1;
    hopt.ceil.linklayer = 1;
    hopt.buffer = 1000;
    hopt.cbuffer = 1000;
    hopt.quantum = 1000;
    hopt.prio = 0;
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) return NULL;
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        
        struct timespec start, end;
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
            struct nlmsghdr *n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
            
            if (c % 500 == 0 || c == NUM_CLASSES) {
                n->nlmsg_flags |= NLM_F_ACK;
                uint32_t expected_seq = n->nlmsg_seq;
                if (c == NUM_CLASSES) {
                    clock_gettime(CLOCK_MONOTONIC, &start);
                }
                if (batch_send(nl_fd, &b, expected_seq) < 0) {
                    printf("[-] batch_send failed\n");
                }
                b.offset = 0;
            }
        }
        
        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 100; p++) {
                udp->source = htons(p);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long sleep_us = 980000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 40000;
            usleep(sleep_us + jitter);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

516/3 2026/08/15 18:53 loop
0m
517/4 2026/08/15 18:53 iteration 0
0m
518/5 2026/08/15 18:53 action merge-repro-c
0m Results:
map[CurrentCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 5000

struct my_tc_ratespec {
    unsigned char cell_log;
    uint8_t linklayer;
    unsigned short overhead;
    short cell_align;
    unsigned short mpu;
    uint32_t rate;
};

struct my_tc_htb_opt {
    struct my_tc_ratespec rate;
    struct my_tc_ratespec ceil;
    uint32_t buffer;
    uint32_t cbuffer;
    uint32_t quantum;
    uint32_t prio;
};

struct my_tc_htb_glob {
    uint32_t version;
    uint32_t rate2quantum;
    uint32_t defcls;
    uint32_t debug;
    uint32_t direct_pkts;
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

#define TCA_KIND 1
#define TCA_OPTIONS 2

#define TCA_HTB_PARMS 1
#define TCA_HTB_INIT 2

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_opt hopt = {0};
    hopt.rate.rate = 1;
    hopt.rate.linklayer = 1;
    hopt.ceil.rate = 1;
    hopt.ceil.linklayer = 1;
    hopt.buffer = 1000;
    hopt.cbuffer = 1000;
    hopt.quantum = 1000;
    hopt.prio = 0;
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) return NULL;
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        
        struct timespec start, end;
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
            struct nlmsghdr *n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
            
            if (c % 500 == 0 || c == NUM_CLASSES) {
                n->nlmsg_flags |= NLM_F_ACK;
                uint32_t expected_seq = n->nlmsg_seq;
                if (c == NUM_CLASSES) {
                    clock_gettime(CLOCK_MONOTONIC, &start);
                }
                if (batch_send(nl_fd, &b, expected_seq) < 0) {
                    printf("[-] batch_send failed\n");
                }
                b.offset = 0;
            }
        }
        
        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 100; p++) {
                udp->source = htons(p);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long sleep_us = 980000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 40000;
            usleep(sleep_us + jitter);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

519/5 2026/08/15 18:53 action compile-c-prog
0m Results:
map[CompilerError: FormattedReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 5000

struct my_tc_ratespec {
    unsigned char cell_log;
    uint8_t linklayer;
    unsigned short overhead;
    short cell_align;
    unsigned short mpu;
    uint32_t rate;
};

struct my_tc_htb_opt {
    struct my_tc_ratespec rate;
    struct my_tc_ratespec ceil;
    uint32_t buffer;
    uint32_t cbuffer;
    uint32_t quantum;
    uint32_t prio;
};

struct my_tc_htb_glob {
    uint32_t version;
    uint32_t rate2quantum;
    uint32_t defcls;
    uint32_t debug;
    uint32_t direct_pkts;
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

#define TCA_KIND 1
#define TCA_OPTIONS 2

#define TCA_HTB_PARMS 1
#define TCA_HTB_INIT 2

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_opt hopt = {0};
    hopt.rate.rate = 1;
    hopt.rate.linklayer = 1;
    hopt.ceil.rate = 1;
    hopt.ceil.linklayer = 1;
    hopt.buffer = 1000;
    hopt.cbuffer = 1000;
    hopt.quantum = 1000;
    hopt.prio = 0;
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) return NULL;
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        
        struct timespec start, end;
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
            struct nlmsghdr *n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
            
            if (c % 500 == 0 || c == NUM_CLASSES) {
                n->nlmsg_flags |= NLM_F_ACK;
                uint32_t expected_seq = n->nlmsg_seq;
                if (c == NUM_CLASSES) {
                    clock_gettime(CLOCK_MONOTONIC, &start);
                }
                if (batch_send(nl_fd, &b, expected_seq) < 0) {
                    printf("[-] batch_send failed\n");
                }
                b.offset = 0;
            }
        }
        
        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 100; p++) {
                udp->source = htons(p);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long sleep_us = 980000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 40000;
            usleep(sleep_us + jitter);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

520/5 2026/08/15 18:53 action If
0m Args:
map[CompilerError:]

521/3 2026/08/15 18:53 action run-c-repro
8m Results:
map[CandidateBugTitle: CandidateCrashReport: CandidateReproduced:false ConsoleOutput:[  117.421823][   T33] kauditd_printk_skb: 2 callbacks suppressed
[  117.421843][   T33] audit: type=1400 audit(1786820141.614:203): avc:  denied  { transition } for  pid=5832 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.441618][   T33] audit: type=1400 audit(1786820141.614:204): avc:  denied  { noatsecure } for  pid=5832 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.453692][   T33] audit: type=1400 audit(1786820141.614:205): avc:  denied  { rlimitinh } for  pid=5832 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.465482][   T33] audit: type=1400 audit(1786820141.614:206): avc:  denied  { siginh } for  pid=5832 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  120.135822][   T33] audit: type=1400 audit(1786820144.334:207): avc:  denied  { write } for  pid=5836 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  120.226611][   T33] audit: type=1400 audit(1786820144.424:208): avc:  denied  { write } for  pid=5839 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  120.978985][   T33] audit: type=1400 audit(1786820145.174:209): avc:  denied  { write } for  pid=5842 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  121.070869][   T33] audit: type=1400 audit(1786820145.264:210): avc:  denied  { write } for  pid=5845 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  121.251634][   T33] audit: type=1400 audit(1786820145.444:211): avc:  denied  { write } for  pid=5848 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  121.351351][   T33] audit: type=1400 audit(1786820145.544:212): avc:  denied  { write } for  pid=5851 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.295810][   T33] kauditd_printk_skb: 6 callbacks suppressed
[  123.295824][   T33] audit: type=1400 audit(1786820147.494:219): avc:  denied  { write } for  pid=5873 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.393936][   T33] audit: type=1400 audit(1786820147.584:220): avc:  denied  { write } for  pid=5878 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.589095][   T33] audit: type=1400 audit(1786820147.784:221): avc:  denied  { write } for  pid=5883 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.832678][   T33] audit: type=1400 audit(1786820148.024:222): avc:  denied  { write } for  pid=5886 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:32189' (ED25519) to the list of known hosts.
[  125.929511][   T33] audit: type=1400 audit(1786820150.124:223): avc:  denied  { create } for  pid=5898 comm="syz-executor232" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[  125.958104][   T33] audit: type=1400 audit(1786820150.124:224): avc:  denied  { net_raw } for  pid=5898 comm="syz-executor232" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[  126.491245][   T33] audit: type=1400 audit(1786820150.684:225): avc:  denied  { setopt } for  pid=5898 comm="syz-executor232" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[  126.524081][   T33] audit: type=1400 audit(1786820150.684:226): avc:  denied  { write } for  pid=5898 comm="syz-executor232" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[  134.927509][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  134.934135][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[+] unshare successful.
[+] Thread 1 starting race loop...
[+] Thread 0 starting race loop...
[+] Done.
 OtherCrashReports:<nil> StraceOutput:/strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor849080755

<...>
rom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3173, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3173, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x33\x06\x32\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3174, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3174, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x33\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3175, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3175, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x34\x06\x33\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3176, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3176, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x34\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3177, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3177, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x35\x06\x34\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3178, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3178, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x35\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3179, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3179, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x36\x06\x35\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3180, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3180, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x36\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3181, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3181, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x37\x06\x36\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3182, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3182, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x37\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3183, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3183, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x38\x06\x37\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3184, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3184, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x38\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3185, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3185, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x39\x06\x38\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3186, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3186, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x39\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3187, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3187, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3a\x06\x39\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3188, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3188, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3189, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3189, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3b\x06\x3a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3190, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3190, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3191, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3191, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3c\x06\x3b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3192, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3192, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3193, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3193, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3d\x06\x3c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3194, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3194, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3195, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3195, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3e\x06\x3d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3196, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3196, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3197, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3197, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3f\x06\x3e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3198, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3198, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3199, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3199, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x40\x06\x3f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3200, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3200, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x40\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3201, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3201, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x41\x06\x40\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3202, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3202, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x41\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3203, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3203, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x42\x06\x41\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3204, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3204, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x42\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3205, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3205, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x43\x06\x42\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3206, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3206, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x43\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3207, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3207, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x44\x06\x43\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3208, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3208, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x44\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3209, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3209, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x45\x06\x44\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3210, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3210, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x45\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3211, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3211, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x46\x06\x45\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3212, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3212, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x46\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3213, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3213, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x47\x06\x46\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid()                    = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3214, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3214, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x47\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3215, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3215, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x48\x06\x47\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3216, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3216, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x48\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3217, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3217, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x49\x06\x48\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3218, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3218, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x49\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3219, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3219, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4a\x06\x49\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3220, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3220, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3221, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3221, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4b\x06\x4a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3222, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3222, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3223, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3223, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4c\x06\x4b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3224, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3224, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3225, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3225, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4d\x06\x4c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3226, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3226, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3227, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3227, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4e\x06\x4d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3228, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3228, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3229, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3229, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4f\x06\x4e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3230, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3230, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3231, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3231, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x50\x06\x4f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3232, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3232, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x50\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3233, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3233, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x51\x06\x50\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3234, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3234, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x51\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3235, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3235, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x52\x06\x51\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3236, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3236, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x52\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3237, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3237, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x53\x06\x52\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3238, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3238, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x53\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3239, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3239, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x54\x06\x53\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3240, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3240, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x54\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3241, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3241, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x55\x06\x54\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3242, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3242, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x55\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3243, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3243, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x56\x06\x55\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3244, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3244, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x56\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3245, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3245, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x57\x06\x56\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3246, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3246, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x57\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3247, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3247, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x58\x06\x57\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3248, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3248, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x58\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3249, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3249, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x59\x06\x58\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3250, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3250, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x59\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3251, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3251, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5a\x06\x59\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3252, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3252, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3253, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3253, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5b\x06\x5a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3254, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3254, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3255, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3255, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5c\x06\x5b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3256, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3256, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3257, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3257, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5d\x06\x5c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3258, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3258, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3259, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3259, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5e\x06\x5d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3260, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3260, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3261, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3261, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5f\x06\x5e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3262, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3262, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3263, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3263, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x60\x06\x5f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3264, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3264, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x60\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3265, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3265, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x61\x06\x60\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3266, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3266, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x61\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3267, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3267, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x62\x06\x61\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3268, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3268, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x62\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3269, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3269, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x63\x06\x62\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3270, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3270, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x63\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3271, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3271, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x64\x06\x63\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3272, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3272, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x64\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3273, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3273, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x65\x06\x64\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3274, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3274, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x65\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3275, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3275, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x66\x06\x65\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3276, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3276, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x66\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3277, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3277, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x67\x06\x66\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3278, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3278, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x67\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3279, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3279, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x68\x06\x67\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3280, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3280, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x68\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3281, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3281, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x69\x06\x68\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3282, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3282, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x69\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3283, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3283, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6a\x06\x69\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3284, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3284, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3285, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3285, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6b\x06\x6a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3286, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3286, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3287, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3287, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6c\x06\x6b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3288, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3288, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3289, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3289, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6d\x06\x6c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3290, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3290, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3291, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3291, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6e\x06\x6d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3292, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3292, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3293, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3293, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6f\x06\x6e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3294, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3294, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3295, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3295, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x70\x06\x6f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3296, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3296, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x70\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3297, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3297, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x71\x06\x70\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3298, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3298, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x71\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3299, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3299, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x72\x06\x71\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3300, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3300, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x72\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3301, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3301, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x73\x06\x72\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3302, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3302, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x73\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3303, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3303, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x74\x06\x73\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3304, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3304, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x74\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3305, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3305, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x75\x06\x74\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3306, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3306, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x75\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3307, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3307, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x76\x06\x75\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3308, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3308, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x76\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3309, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3309, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x77\x06\x76\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3310, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3310, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x77\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3311, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3311, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x78\x06\x77\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3312, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3312, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x78\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3313, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3313, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x79\x06\x78\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3314, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3314, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x79\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3315, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3315, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7a\x06\x79\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3316, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3316, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3317, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3317, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7b\x06\x7a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3318, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3318, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3319, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3319, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7c\x06\x7b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3320, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3320, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3321, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3321, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7d\x06\x7c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3322, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3322, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3323, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3323, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7e\x06\x7d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3324, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3324, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3325, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3325, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7f\x06\x7e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3326, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3326, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3327, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3327, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x80\x06\x7f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3328, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3328, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x80\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3329, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3329, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x81\x06\x80\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3330, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3330, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x81\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3331, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3331, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x82\x06\x81\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3332, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3332, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x82\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3333, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3333, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x83\x06\x82\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3334, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3334, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x83\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3335, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3335, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x84\x06\x83\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3336, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3336, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x84\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3337, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3337, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x85\x06\x84\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3338, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3338, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x85\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3339, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3339, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x86\x06\x85\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3340, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3340, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x86\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3341, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3341, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x87\x06\x86\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3342, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3342, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x87\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3343, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3343, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x88\x06\x87\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3344, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3344, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x88\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3345, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3345, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x89\x06\x88\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3346, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3346, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x89\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3347, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3347, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8a\x06\x89\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3348, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3348, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3349, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3349, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8b\x06\x8a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3350, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3350, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3351, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3351, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8c\x06\x8b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3352, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3352, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3353, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3353, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8d\x06\x8c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3354, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3354, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3355, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3355, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8e\x06\x8d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3356, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3356, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3357, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3357, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8f\x06\x8e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3358, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3358, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3359, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3359, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x90\x06\x8f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3360, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3360, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x90\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3361, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3361, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x91\x06\x90\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3362, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3362, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x91\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3363, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3363, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x92\x06\x91\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3364, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3364, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x92\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3365, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3365, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x93\x06\x92\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3366, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3366, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x93\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3367, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3367, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x94\x06\x93\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3368, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3368, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x94\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3369, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3369, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x95\x06\x94\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3370, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3370, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x95\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3371, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3371, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x96\x06\x95\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3372, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3372, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x96\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3373, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3373, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x97\x06\x96\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3374, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3374, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x97\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3375, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3375, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x98\x06\x97\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3376, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3376, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x98\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3377, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3377, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x99\x06\x98\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3378, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3378, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x99\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3379, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3379, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9a\x06\x99\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3380, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3380, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3381, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3381, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9b\x06\x9a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3382, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3382, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3383, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3383, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9c\x06\x9b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3384, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3384, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3385, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3385, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9d\x06\x9c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3386, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3386, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3387, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3387, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9e\x06\x9d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3388, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3388, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3389, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3389, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9f\x06\x9e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3390, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3390, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3391, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3391, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa0\x06\x9f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3392, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3392, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa0\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3393, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3393, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa1\x06\xa0\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3394, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3394, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa1\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3395, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3395, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa2\x06\xa1\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3396, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3396, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa2\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3397, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3397, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa3\x06\xa2\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3398, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3398, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa3\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3399, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3399, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa4\x06\xa3\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3400, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3400, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa4\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3401, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3401, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa5\x06\xa4\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3402, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3402, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa5\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3403, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3403, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa6\x06\xa5\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3404, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3404, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa6\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3405, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3405, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa7\x06\xa6\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3406, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3406, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa7\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3407, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3407, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa8\x06\xa7\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3408, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3408, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa8\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3409, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3409, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa9\x06\xa8\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3410, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3410, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa9\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3411, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3411, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaa\x06\xa9\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3412, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3412, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xaa\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3413, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3413, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xab\x06\xaa\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3414, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3414, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xab\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3415, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3415, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xac\x06\xab\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3416, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3416, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xac\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3417, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3417, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xad\x06\xac\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3418, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3418, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xad\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3419, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3419, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xae\x06\xad\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3420, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3420, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xae\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3421, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3421, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaf\x06\xae\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3422, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3422, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xaf\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3423, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3423, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb0\x06\xaf\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3424, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3424, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb0\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3425, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3425, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb1\x06\xb0\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3426, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3426, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb1\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3427, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3427, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb2\x06\xb1\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3428, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3428, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb2\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3429, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3429, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb3\x06\xb2\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3430, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3430, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb3\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3431, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3431, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb4\x06\xb3\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3432, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3432, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb4\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3433, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3433, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb5\x06\xb4\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3434, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3434, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb5\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3435, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3435, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb6\x06\xb5\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3436, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3436, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb6\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3437, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3437, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb7\x06\xb6\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3438, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3438, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb7\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3439, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3439, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb8\x06\xb7\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3440, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3440, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb8\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3441, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3441, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb9\x06\xb8\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3442, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3442, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb9\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3443, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3443, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xba\x06\xb9\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3444, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3444, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xba\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3445, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3445, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbb\x06\xba\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3446, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3446, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbb\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3447, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3447, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbc\x06\xbb\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3448, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3448, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbc\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3449, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3449, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbd\x06\xbc\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3450, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3450, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbd\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3451, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3451, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbe\x06\xbd\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3452, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3452, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbe\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3453, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3453, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbf\x06\xbe\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3454, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3454, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbf\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3455, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3455, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc0\x06\xbf\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3456, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3456, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc0\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3457, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3457, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc1\x06\xc0\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3458, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3458, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc1\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3459, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3459, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc2\x06\xc1\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3460, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3460, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc2\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3461, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3461, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc3\x06\xc2\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3462, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3462, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc3\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3463, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3463, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc4\x06\xc3\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3464, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3464, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc4\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3465, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3465, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc5\x06\xc4\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3466, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3466, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc5\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3467, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3467, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc6\x06\xc5\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3468, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3468, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc6\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3469, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3469, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc7\x06\xc6\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3470, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3470, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc7\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3471, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3471, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc8\x06\xc7\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3472, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3472, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc8\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3473, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3473, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc9\x06\xc8\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3474, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3474, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc9\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3475, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3475, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xca\x06\xc9\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3476, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3476, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xca\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112

[host] Command execution timed out after 2m30s
 TestError:]

522/3 2026/08/15 19:01 action truncate-log
0m Results:
map[TruncatedConsoleOutput:[  117.421823][   T33] kauditd_printk_skb: 2 callbacks suppressed
[  117.421843][   T33] audit: type=1400 audit(1786820141.614:203): avc:  denied  { transition } for  pid=5832 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.441618][   T33] audit: type=1400 audit(1786820141.614:204): avc:  denied  { noatsecure } for  pid=5832 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.453692][   T33] audit: type=1400 audit(1786820141.614:205): avc:  denied  { rlimitinh } for  pid=5832 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.465482][   T33] audit: type=1400 audit(1786820141.614:206): avc:  denied  { siginh } for  pid=5832 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  120.135822][   T33] audit: type=1400 audit(1786820144.334:207): avc:  denied  { write } for  pid=5836 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  120.226611][   T33] audit: type=1400 audit(1786820144.424:208): avc:  denied  { write } for  pid=5839 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  120.978985][   T33] audit: type=1400 audit(1786820145.174:209): avc:  denied  { write } for  pid=5842 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  121.070869][   T33] audit: type=1400 audit(1786820145.264:210): avc:  denied  { write } for  pid=5845 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  121.251634][   T33] audit: type=1400 audit(1786820145.444:211): avc:  denied  { write } for  pid=5848 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  121.351351][   T33] audit: type=1400 audit(1786820145.544:212): avc:  denied  { write } for  pid=5851 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.295810][   T33] kauditd_printk_skb: 6 callbacks suppressed
[  123.295824][   T33] audit: type=1400 audit(1786820147.494:219): avc:  denied  { write } for  pid=5873 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.393936][   T33] audit: type=1400 audit(1786820147.584:220): avc:  denied  { write } for  pid=5878 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.589095][   T33] audit: type=1400 audit(1786820147.784:221): avc:  denied  { write } for  pid=5883 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.832678][   T33] audit: type=1400 audit(1786820148.024:222): avc:  denied  { write } for  pid=5886 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:32189' (ED25519) to the list of known hosts.
[  125.929511][   T33] audit: type=1400 audit(1786820150.124:223): avc:  denied  { create } for  pid=5898 comm="syz-executor232" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[  125.958104][   T33] audit: type=1400 audit(1786820150.124:224): avc:  denied  { net_raw } for  pid=5898 comm="syz-executor232" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[  126.491245][   T33] audit: type=1400 audit(1786820150.684:225): avc:  denied  { setopt } for  pid=5898 comm="syz-executor232" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[  126.524081][   T33] audit: type=1400 audit(1786820150.684:226): avc:  denied  { write } for  pid=5898 comm="syz-executor232" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[  134.927509][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  134.934135][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[+] unshare successful.
[+] Thread 1 starting race loop...
[+] Thread 0 starting race loop...
[+] Done.
 TruncatedCrashReport: TruncatedStraceOutput:/strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor849080755

<...>
rom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3173, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3173, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x33\x06\x32\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3174, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3174, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x33\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3175, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3175, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x34\x06\x33\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3176, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3176, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x34\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3177, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3177, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x35\x06\x34\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3178, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3178, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x35\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3179, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3179, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x36\x06\x35\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3180, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3180, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x36\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3181, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3181, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x37\x06\x36\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3182, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3182, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x37\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3183, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3183, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x38\x06\x37\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3184, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3184, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x38\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3185, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3185, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x39\x06\x38\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3186, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3186, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x39\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3187, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3187, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3a\x06\x39\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3188, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3188, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3189, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3189, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3b\x06\x3a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3190, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3190, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3191, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3191, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3c\x06\x3b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3192, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3192, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3193, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3193, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3d\x06\x3c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3194, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3194, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3195, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3195, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3e\x06\x3d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3196, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3196, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3197, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3197, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3f\x06\x3e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3198, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3198, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3199, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3199, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x40\x06\x3f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3200, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3200, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x40\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3201, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3201, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x41\x06\x40\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3202, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3202, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x41\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3203, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3203, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x42\x06\x41\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3204, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3204, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x42\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3205, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3205, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x43\x06\x42\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3206, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3206, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x43\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3207, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3207, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x44\x06\x43\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3208, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3208, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x44\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3209, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3209, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x45\x06\x44\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3210, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3210, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x45\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3211, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3211, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x46\x06\x45\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3212, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3212, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x46\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3213, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3213, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x47\x06\x46\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid()                    = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3214, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3214, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x47\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3215, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3215, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x48\x06\x47\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3216, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3216, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x48\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3217, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3217, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x49\x06\x48\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3218, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3218, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x49\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3219, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3219, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4a\x06\x49\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3220, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3220, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3221, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3221, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4b\x06\x4a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3222, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3222, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3223, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3223, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4c\x06\x4b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3224, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3224, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3225, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3225, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4d\x06\x4c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3226, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3226, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3227, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3227, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4e\x06\x4d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3228, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3228, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3229, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3229, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4f\x06\x4e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3230, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3230, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3231, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3231, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x50\x06\x4f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3232, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3232, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x50\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3233, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3233, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x51\x06\x50\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3234, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3234, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x51\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3235, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3235, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x52\x06\x51\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3236, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3236, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x52\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3237, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3237, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x53\x06\x52\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3238, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3238, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x53\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3239, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3239, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x54\x06\x53\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3240, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3240, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x54\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3241, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3241, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x55\x06\x54\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3242, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3242, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x55\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3243, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3243, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x56\x06\x55\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3244, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3244, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x56\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3245, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3245, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x57\x06\x56\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3246, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3246, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x57\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3247, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3247, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x58\x06\x57\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3248, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3248, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x58\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3249, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3249, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x59\x06\x58\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3250, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3250, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x59\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3251, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3251, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5a\x06\x59\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3252, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3252, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3253, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3253, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5b\x06\x5a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3254, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3254, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3255, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3255, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5c\x06\x5b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3256, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3256, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3257, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3257, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5d\x06\x5c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3258, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3258, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3259, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3259, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5e\x06\x5d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3260, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3260, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3261, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3261, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5f\x06\x5e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3262, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3262, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3263, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3263, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x60\x06\x5f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3264, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3264, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x60\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3265, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3265, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x61\x06\x60\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3266, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3266, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x61\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3267, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3267, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x62\x06\x61\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3268, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3268, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x62\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3269, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3269, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x63\x06\x62\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3270, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3270, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x63\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3271, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3271, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x64\x06\x63\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3272, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3272, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x64\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3273, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3273, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x65\x06\x64\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3274, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3274, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x65\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3275, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3275, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x66\x06\x65\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3276, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3276, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x66\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3277, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3277, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x67\x06\x66\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3278, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3278, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x67\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3279, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3279, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x68\x06\x67\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3280, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3280, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x68\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3281, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3281, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x69\x06\x68\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3282, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3282, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x69\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3283, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3283, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6a\x06\x69\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3284, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3284, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3285, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3285, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6b\x06\x6a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3286, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3286, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3287, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3287, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6c\x06\x6b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3288, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3288, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3289, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3289, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6d\x06\x6c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3290, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3290, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3291, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3291, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6e\x06\x6d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3292, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3292, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3293, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3293, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6f\x06\x6e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3294, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3294, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3295, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3295, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x70\x06\x6f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3296, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3296, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x70\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3297, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3297, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x71\x06\x70\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3298, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3298, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x71\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3299, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3299, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x72\x06\x71\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3300, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3300, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x72\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3301, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3301, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x73\x06\x72\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3302, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3302, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x73\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3303, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3303, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x74\x06\x73\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3304, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3304, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x74\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3305, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3305, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x75\x06\x74\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3306, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3306, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x75\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3307, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3307, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x76\x06\x75\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3308, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3308, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x76\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3309, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3309, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x77\x06\x76\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3310, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3310, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x77\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3311, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3311, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x78\x06\x77\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3312, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3312, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x78\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3313, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3313, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x79\x06\x78\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3314, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3314, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x79\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3315, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3315, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7a\x06\x79\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3316, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3316, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3317, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3317, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7b\x06\x7a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3318, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3318, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3319, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3319, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7c\x06\x7b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3320, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3320, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3321, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3321, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7d\x06\x7c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3322, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3322, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3323, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3323, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7e\x06\x7d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3324, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3324, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3325, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3325, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7f\x06\x7e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3326, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3326, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3327, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3327, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x80\x06\x7f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3328, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3328, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x80\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3329, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3329, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x81\x06\x80\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3330, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3330, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x81\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3331, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3331, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x82\x06\x81\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3332, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3332, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x82\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3333, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3333, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x83\x06\x82\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3334, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3334, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x83\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3335, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3335, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x84\x06\x83\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3336, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3336, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x84\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3337, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3337, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x85\x06\x84\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3338, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3338, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x85\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3339, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3339, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x86\x06\x85\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3340, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3340, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x86\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3341, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3341, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x87\x06\x86\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3342, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3342, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x87\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3343, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3343, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x88\x06\x87\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3344, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3344, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x88\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3345, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3345, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x89\x06\x88\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3346, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3346, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x89\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3347, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3347, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8a\x06\x89\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3348, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3348, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3349, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3349, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8b\x06\x8a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3350, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3350, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3351, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3351, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8c\x06\x8b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3352, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3352, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3353, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3353, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8d\x06\x8c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3354, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3354, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3355, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3355, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8e\x06\x8d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3356, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3356, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3357, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3357, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8f\x06\x8e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3358, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3358, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3359, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3359, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x90\x06\x8f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3360, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3360, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x90\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3361, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3361, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x91\x06\x90\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3362, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3362, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x91\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3363, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3363, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x92\x06\x91\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3364, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3364, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x92\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3365, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3365, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x93\x06\x92\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3366, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3366, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x93\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3367, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3367, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x94\x06\x93\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3368, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3368, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x94\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3369, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3369, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x95\x06\x94\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3370, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3370, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x95\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3371, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3371, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x96\x06\x95\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3372, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3372, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x96\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3373, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3373, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x97\x06\x96\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3374, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3374, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x97\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3375, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3375, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x98\x06\x97\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3376, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3376, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x98\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3377, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3377, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x99\x06\x98\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3378, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3378, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x99\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3379, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3379, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9a\x06\x99\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3380, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3380, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3381, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3381, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9b\x06\x9a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3382, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3382, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3383, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3383, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9c\x06\x9b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3384, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3384, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3385, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3385, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9d\x06\x9c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3386, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3386, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3387, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3387, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9e\x06\x9d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3388, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3388, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3389, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3389, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9f\x06\x9e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3390, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3390, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3391, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3391, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa0\x06\x9f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3392, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3392, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa0\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3393, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3393, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa1\x06\xa0\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3394, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3394, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa1\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3395, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3395, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa2\x06\xa1\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3396, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3396, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa2\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3397, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3397, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa3\x06\xa2\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3398, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3398, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa3\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3399, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3399, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa4\x06\xa3\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3400, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3400, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa4\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3401, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3401, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa5\x06\xa4\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3402, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3402, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa5\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3403, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3403, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa6\x06\xa5\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3404, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3404, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa6\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3405, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3405, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa7\x06\xa6\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3406, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3406, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa7\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3407, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3407, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa8\x06\xa7\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3408, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3408, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa8\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3409, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3409, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa9\x06\xa8\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3410, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3410, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa9\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3411, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3411, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaa\x06\xa9\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3412, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3412, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xaa\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3413, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3413, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xab\x06\xaa\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3414, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3414, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xab\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3415, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3415, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xac\x06\xab\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3416, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3416, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xac\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3417, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3417, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xad\x06\xac\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3418, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3418, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xad\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3419, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3419, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xae\x06\xad\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3420, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3420, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xae\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3421, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3421, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaf\x06\xae\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3422, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3422, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xaf\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3423, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3423, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb0\x06\xaf\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3424, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3424, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb0\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3425, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3425, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb1\x06\xb0\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3426, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3426, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb1\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3427, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3427, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb2\x06\xb1\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3428, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3428, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb2\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3429, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3429, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb3\x06\xb2\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3430, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3430, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb3\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3431, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3431, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb4\x06\xb3\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3432, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3432, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb4\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3433, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3433, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb5\x06\xb4\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3434, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3434, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb5\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3435, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3435, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb6\x06\xb5\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3436, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3436, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb6\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3437, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3437, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb7\x06\xb6\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3438, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3438, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb7\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3439, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3439, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb8\x06\xb7\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3440, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3440, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb8\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3441, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3441, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb9\x06\xb8\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3442, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3442, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb9\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3443, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3443, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xba\x06\xb9\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3444, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3444, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xba\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3445, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3445, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbb\x06\xba\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3446, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3446, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbb\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3447, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3447, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbc\x06\xbb\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3448, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3448, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbc\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3449, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3449, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbd\x06\xbc\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3450, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3450, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbd\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3451, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3451, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbe\x06\xbd\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3452, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3452, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbe\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3453, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3453, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbf\x06\xbe\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3454, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3454, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbf\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3455, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3455, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc0\x06\xbf\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3456, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3456, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc0\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3457, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3457, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc1\x06\xc0\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3458, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3458, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc1\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3459, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3459, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc2\x06\xc1\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3460, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3460, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc2\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3461, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3461, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc3\x06\xc2\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3462, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3462, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc3\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3463, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3463, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc4\x06\xc3\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3464, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3464, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc4\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3465, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3465, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc5\x06\xc4\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3466, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3466, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc5\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3467, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3467, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc6\x06\xc5\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3468, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3468, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc6\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3469, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3469, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc7\x06\xc6\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3470, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3470, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc7\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3471, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3471, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc8\x06\xc7\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3472, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3472, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc8\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3473, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3473, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc9\x06\xc8\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3474, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3474, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc9\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3475, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3475, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xca\x06\xc9\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3476, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3476, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xca\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112

[host] Command execution timed out after 2m30s
]

523/3 2026/08/15 19:01 agent repro-oracle
9m Model:
best-expensive

Results:
map[Feedback:The reproduction attempt failed because the generated C program sends an incompatible netlink message for creating the `htb` class, resulting in an `-ERANGE` error.

1. **Failing System Call & Error**: The `recvfrom` trace shows that the netlink request to create the `htb` class (`RTM_NEWTCLASS`) failed with `-ERANGE` (34).
2. **Validation Logic**: The error originates from `validate_nla()` in `lib/nlattr.c`. For `NLA_UNSPEC` attributes, it checks if the payload length (`attrlen`) is at least `pt->len`.
3. **Constraint Violation**: The `htb_policy` in `net/sched/sch_htb.c` defines `[TCA_HTB_PARMS] = { .len = sizeof(struct tc_htb_opt) }`. In the current kernel, `sizeof(struct tc_htb_opt)` is 44 bytes (due to the recent addition of the `prio` field). However, the reproducer sends a `TCA_HTB_PARMS` attribute with a payload of only 40 bytes (`nla_len` = 44, which includes the 4-byte header). Since 40 < 44, `validate_nla()` rejects it with `-ERANGE`.
4. **Consequence**: Because the `htb` class creation fails, the subsequent creation of the `sfq` qdisc (which specifies the `htb` class as its parent) fails with `-ENOENT`. Without the `sfq` qdisc, its `perturb_timer` is never started, and the race condition cannot be triggered.

**Bug Analysis**: The original bug is a race condition between `htb_destroy()` and `sfq_perturbation()`. When the `htb` qdisc is destroyed, it is first unhashed via `qdisc_hash_del()`. Then it destroys its child classes and their leaf qdiscs (like `sfq`). `sfq_destroy()` calls `timer_delete_sync()` to stop the perturb timer. If the timer fires *after* the `htb` qdisc is unhashed but *before* `timer_delete_sync()` completes, `sfq_perturbation()` will call `sfq_rehash()`, which may drop packets and call `qdisc_tree_reduce_backlog()`. This function tries to look up the parent `htb` qdisc via `qdisc_lookup_rcu()`. Since the parent is already unhashed, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`. ProbePassed:false TerminalError: TitleMatches:false]

Instruction:
You are a security researcher with deep Linux kernel background.
Analyze the results of running the generated program.

=== CRITICAL ENVIRONMENT & TARGET CLASSIFICATION ===
Set 'TerminalError' to a descriptive error message ONLY if:
1. The execution failed due to missing hardware device nodes, subsystems, kernel modules, or privilege limits
   that cannot be loaded, created, or bypassed by user-space C code edits in the VM guest.
2. The target source files or functions described in the bug description do not exist in the checked-out codebase,
   meaning the codebase version is mismatched and the target code is absent.

=== CRITICAL PROHIBITIONS ===
- Do NOT classify a run as a terminal failure or assume a bug is fixed based on git log entries, commit titles,
  or commit messages. Reproducibility can ONLY be determined by executing reproducer candidates in the VM.
- Do NOT suggest C code strategies, repairs, or namespace bypasses when setting 'TerminalError'.


=== PHASE 2: BUG REPRODUCTION (EVALUATION) ===
The executed program was a full reproducer candidate attempting to trigger the target bug/crash.
Use this to guide your classification and feedback:
1. If a crash was triggered (Reproduced is true):
   - Determine if the triggered crash matches the expected bug.
   - If you conclude they represent the same underlying bug (the same root cause)
     despite different titles, crash signatures, or call traces, set TitleMatches
     to true and provide a detailed, technical, and verbose explanation of the
     equivalence in the 'Feedback' field.
   - If they do not represent the same bug (a completely unrelated crash/collision),
     set TitleMatches to false and explain the collision in 'Feedback'.
   - If they match exactly, set TitleMatches to true and provide a brief confirmation in 'Feedback'.
2. If the execution was successful (exit 0) WITHOUT a crash (Reproduced is false):
   - The reproduction attempt failed to trigger the bug. Analyze the console/strace output
     to understand why the bug did not trigger (e.g., timing, input arguments, environment setup)
     and provide feedback on how to improve the reproducer logic to trigger the crash.

Critical Diagnostic Rule for Reproduction Failures:
If the reproduction attempt fails (e.g., a system call returns an error, or a
warning/error message appears in the console log), you MUST:
1. Identify the failing system call from the execution trace or strace output.
2. Identify any corresponding warning or error messages in the console log.
3. Immediately search the kernel source tree for the warning message strings or
   the code of the failing system call/subsystem to locate the validation logic.
4. Trace the kernel's validation logic to diagnose the exact constraint violation
   or input mismatch in the generated program.
5. Provide a technical diagnosis in the feedback explaining the exact kernel constraint that was violated and why.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

IsProbe: false
Reproduced: false
Console Output: [  117.421823][   T33] kauditd_printk_skb: 2 callbacks suppressed
[  117.421843][   T33] audit: type=1400 audit(1786820141.614:203): avc:  denied  { transition } for  pid=5832 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.441618][   T33] audit: type=1400 audit(1786820141.614:204): avc:  denied  { noatsecure } for  pid=5832 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.453692][   T33] audit: type=1400 audit(1786820141.614:205): avc:  denied  { rlimitinh } for  pid=5832 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  117.465482][   T33] audit: type=1400 audit(1786820141.614:206): avc:  denied  { siginh } for  pid=5832 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[  120.135822][   T33] audit: type=1400 audit(1786820144.334:207): avc:  denied  { write } for  pid=5836 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  120.226611][   T33] audit: type=1400 audit(1786820144.424:208): avc:  denied  { write } for  pid=5839 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  120.978985][   T33] audit: type=1400 audit(1786820145.174:209): avc:  denied  { write } for  pid=5842 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  121.070869][   T33] audit: type=1400 audit(1786820145.264:210): avc:  denied  { write } for  pid=5845 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  121.251634][   T33] audit: type=1400 audit(1786820145.444:211): avc:  denied  { write } for  pid=5848 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  121.351351][   T33] audit: type=1400 audit(1786820145.544:212): avc:  denied  { write } for  pid=5851 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.295810][   T33] kauditd_printk_skb: 6 callbacks suppressed
[  123.295824][   T33] audit: type=1400 audit(1786820147.494:219): avc:  denied  { write } for  pid=5873 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.393936][   T33] audit: type=1400 audit(1786820147.584:220): avc:  denied  { write } for  pid=5878 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.589095][   T33] audit: type=1400 audit(1786820147.784:221): avc:  denied  { write } for  pid=5883 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[  123.832678][   T33] audit: type=1400 audit(1786820148.024:222): avc:  denied  { write } for  pid=5886 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:32189' (ED25519) to the list of known hosts.
[  125.929511][   T33] audit: type=1400 audit(1786820150.124:223): avc:  denied  { create } for  pid=5898 comm="syz-executor232" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[  125.958104][   T33] audit: type=1400 audit(1786820150.124:224): avc:  denied  { net_raw } for  pid=5898 comm="syz-executor232" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[  126.491245][   T33] audit: type=1400 audit(1786820150.684:225): avc:  denied  { setopt } for  pid=5898 comm="syz-executor232" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[  126.524081][   T33] audit: type=1400 audit(1786820150.684:226): avc:  denied  { write } for  pid=5898 comm="syz-executor232" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[  134.927509][ T1374] ieee802154 phy0 wpan0: encryption failed: -22
[  134.934135][ T1374] ieee802154 phy1 wpan1: encryption failed: -22
[+] unshare successful.
[+] Thread 1 starting race loop...
[+] Thread 0 starting race loop...
[+] Done.

Strace Output: /strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor849080755

<...>
rom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3173, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3173, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x33\x06\x32\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3174, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3174, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x33\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3175, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3175, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x34\x06\x33\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3176, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3176, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x34\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3177, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3177, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x35\x06\x34\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3178, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3178, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x35\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3179, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3179, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x36\x06\x35\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3180, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3180, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x36\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3181, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3181, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x37\x06\x36\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3182, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3182, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x37\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3183, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3183, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x38\x06\x37\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3184, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3184, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x38\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3185, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3185, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x39\x06\x38\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3186, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3186, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x39\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3187, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3187, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3a\x06\x39\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3188, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3188, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3189, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3189, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3b\x06\x3a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3190, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3190, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3191, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3191, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3c\x06\x3b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3192, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3192, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3193, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3193, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3d\x06\x3c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3194, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3194, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3195, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3195, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3e\x06\x3d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3196, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3196, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3197, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3197, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x3f\x06\x3e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3198, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3198, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x3f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3199, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3199, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x40\x06\x3f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3200, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3200, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x40\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3201, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3201, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x41\x06\x40\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3202, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3202, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x41\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3203, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3203, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x42\x06\x41\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3204, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3204, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x42\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3205, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3205, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x43\x06\x42\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3206, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3206, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x43\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3207, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3207, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x44\x06\x43\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3208, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3208, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x44\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3209, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3209, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x45\x06\x44\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3210, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3210, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x45\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3211, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3211, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x46\x06\x45\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3212, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3212, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x46\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3213, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3213, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x47\x06\x46\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid()                    = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3214, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3214, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x47\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3215, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3215, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x48\x06\x47\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3216, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3216, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x48\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3217, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3217, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x49\x06\x48\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3218, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3218, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x49\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3219, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3219, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4a\x06\x49\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3220, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3220, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3221, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3221, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4b\x06\x4a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3222, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3222, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3223, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3223, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4c\x06\x4b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3224, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3224, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3225, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3225, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4d\x06\x4c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3226, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3226, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3227, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3227, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4e\x06\x4d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3228, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3228, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3229, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3229, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x4f\x06\x4e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3230, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3230, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x4f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3231, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3231, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x50\x06\x4f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3232, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3232, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x50\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3233, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3233, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x51\x06\x50\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3234, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3234, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x51\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3235, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3235, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x52\x06\x51\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3236, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3236, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x52\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3237, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3237, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x53\x06\x52\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3238, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3238, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x53\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3239, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3239, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x54\x06\x53\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3240, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3240, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x54\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3241, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3241, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x55\x06\x54\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3242, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3242, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x55\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3243, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3243, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x56\x06\x55\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3244, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3244, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x56\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3245, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3245, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x57\x06\x56\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3246, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3246, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x57\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3247, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3247, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x58\x06\x57\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3248, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3248, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x58\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3249, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3249, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x59\x06\x58\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3250, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3250, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x59\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3251, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3251, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5a\x06\x59\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3252, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3252, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3253, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3253, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5b\x06\x5a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3254, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3254, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3255, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3255, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5c\x06\x5b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3256, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3256, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3257, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3257, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5d\x06\x5c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3258, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3258, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3259, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3259, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5e\x06\x5d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3260, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3260, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3261, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3261, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5f\x06\x5e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3262, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3262, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x5f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3263, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3263, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x60\x06\x5f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3264, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3264, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x60\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3265, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3265, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x61\x06\x60\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3266, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3266, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x61\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3267, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3267, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x62\x06\x61\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3268, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3268, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x62\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3269, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3269, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x63\x06\x62\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3270, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3270, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x63\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3271, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3271, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x64\x06\x63\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3272, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3272, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x64\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3273, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3273, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x65\x06\x64\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3274, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3274, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x65\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3275, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3275, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x66\x06\x65\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3276, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3276, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x66\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3277, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3277, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x67\x06\x66\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3278, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3278, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x67\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3279, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3279, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x68\x06\x67\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3280, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3280, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x68\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3281, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3281, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x69\x06\x68\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3282, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3282, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x69\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3283, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3283, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6a\x06\x69\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3284, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3284, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3285, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3285, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6b\x06\x6a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3286, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3286, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3287, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3287, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6c\x06\x6b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3288, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3288, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3289, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3289, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6d\x06\x6c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3290, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3290, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3291, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3291, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6e\x06\x6d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3292, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3292, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3293, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3293, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x6f\x06\x6e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3294, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3294, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x6f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3295, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3295, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x70\x06\x6f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3296, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3296, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x70\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3297, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3297, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x71\x06\x70\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3298, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3298, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x71\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3299, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3299, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x72\x06\x71\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3300, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3300, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x72\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3301, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3301, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x73\x06\x72\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3302, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3302, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x73\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3303, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3303, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x74\x06\x73\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3304, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3304, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x74\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3305, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3305, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x75\x06\x74\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3306, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3306, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x75\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3307, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3307, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x76\x06\x75\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3308, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3308, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x76\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3309, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3309, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x77\x06\x76\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3310, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3310, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x77\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3311, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3311, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x78\x06\x77\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3312, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3312, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x78\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3313, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3313, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x79\x06\x78\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3314, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3314, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x79\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3315, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3315, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7a\x06\x79\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3316, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3316, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3317, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3317, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7b\x06\x7a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3318, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3318, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3319, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3319, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7c\x06\x7b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3320, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3320, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3321, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3321, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7d\x06\x7c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3322, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3322, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3323, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3323, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7e\x06\x7d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3324, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3324, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3325, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3325, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x7f\x06\x7e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3326, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3326, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x7f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3327, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3327, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x80\x06\x7f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3328, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3328, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x80\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3329, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3329, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x81\x06\x80\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3330, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3330, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x81\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3331, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3331, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x82\x06\x81\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3332, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3332, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x82\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid()                    = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3333, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3333, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x83\x06\x82\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3334, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3334, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x83\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3335, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3335, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x84\x06\x83\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3336, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3336, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x84\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3337, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3337, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x85\x06\x84\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3338, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3338, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x85\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3339, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3339, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x86\x06\x85\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3340, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3340, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x86\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3341, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3341, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x87\x06\x86\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3342, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3342, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x87\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3343, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3343, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x88\x06\x87\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3344, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3344, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x88\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3345, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3345, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x89\x06\x88\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3346, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3346, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x89\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3347, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3347, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8a\x06\x89\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3348, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3348, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3349, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3349, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8b\x06\x8a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3350, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3350, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3351, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3351, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8c\x06\x8b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3352, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3352, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3353, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3353, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8d\x06\x8c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3354, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3354, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3355, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3355, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8e\x06\x8d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3356, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3356, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3357, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3357, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x8f\x06\x8e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3358, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3358, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x8f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3359, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3359, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x90\x06\x8f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3360, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3360, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x90\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3361, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3361, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x91\x06\x90\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3362, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3362, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x91\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3363, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3363, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x92\x06\x91\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3364, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3364, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x92\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3365, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3365, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x93\x06\x92\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3366, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3366, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x93\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3367, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3367, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x94\x06\x93\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3368, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3368, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x94\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3369, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3369, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x95\x06\x94\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3370, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3370, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x95\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3371, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3371, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x96\x06\x95\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3372, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3372, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x96\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3373, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3373, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x97\x06\x96\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3374, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3374, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x97\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3375, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3375, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x98\x06\x97\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3376, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3376, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x98\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3377, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3377, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x99\x06\x98\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3378, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3378, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x99\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3379, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3379, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9a\x06\x99\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3380, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3380, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9a\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3381, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3381, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9b\x06\x9a\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3382, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3382, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9b\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3383, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3383, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9c\x06\x9b\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3384, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3384, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9c\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3385, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3385, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9d\x06\x9c\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3386, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3386, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9d\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3387, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3387, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9e\x06\x9d\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3388, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3388, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9e\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3389, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3389, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x9f\x06\x9e\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3390, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3390, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x9f\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3391, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3391, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa0\x06\x9f\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3392, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3392, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa0\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3393, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3393, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa1\x06\xa0\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3394, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3394, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa1\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3395, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3395, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa2\x06\xa1\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3396, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3396, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa2\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3397, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3397, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa3\x06\xa2\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3398, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3398, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa3\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3399, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3399, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa4\x06\xa3\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3400, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3400, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa4\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3401, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3401, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa5\x06\xa4\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3402, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3402, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa5\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3403, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3403, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa6\x06\xa5\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3404, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3404, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa6\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3405, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3405, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa7\x06\xa6\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3406, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3406, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa7\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3407, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3407, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa8\x06\xa7\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3408, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3408, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa8\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3409, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3409, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xa9\x06\xa8\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3410, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3410, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xa9\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3411, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3411, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaa\x06\xa9\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3412, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3412, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xaa\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3413, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3413, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xab\x06\xaa\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3414, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3414, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xab\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid()                    = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3415, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3415, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xac\x06\xab\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3416, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3416, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xac\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3417, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3417, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xad\x06\xac\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3418, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3418, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xad\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3419, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3419, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xae\x06\xad\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3420, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3420, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xae\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3421, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3421, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xaf\x06\xae\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3422, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3422, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xaf\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3423, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3423, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb0\x06\xaf\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3424, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3424, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb0\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3425, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3425, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb1\x06\xb0\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3426, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3426, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb1\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3427, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3427, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb2\x06\xb1\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3428, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3428, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb2\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3429, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3429, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb3\x06\xb2\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3430, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3430, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb3\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3431, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3431, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb4\x06\xb3\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3432, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3432, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb4\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3433, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3433, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb5\x06\xb4\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3434, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3434, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb5\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3435, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3435, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb6\x06\xb5\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3436, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3436, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb6\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3437, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3437, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb7\x06\xb6\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3438, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3438, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb7\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3439, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3439, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb8\x06\xb7\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3440, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3440, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb8\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3441, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3441, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xb9\x06\xb8\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3442, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3442, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xb9\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3443, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3443, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xba\x06\xb9\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3444, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3444, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xba\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3445, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3445, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbb\x06\xba\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3446, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3446, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbb\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3447, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3447, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbc\x06\xbb\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3448, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3448, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbc\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3449, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3449, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbd\x06\xbc\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3450, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3450, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbd\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3451, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3451, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbe\x06\xbd\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3452, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3452, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbe\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3453, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3453, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xbf\x06\xbe\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3454, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3454, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xbf\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3455, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3455, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc0\x06\xbf\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3456, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3456, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc0\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3457, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3457, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc1\x06\xc0\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3458, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3458, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc1\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3459, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3459, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc2\x06\xc1\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3460, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3460, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc2\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3461, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3461, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc3\x06\xc2\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3462, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3462, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc3\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3463, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3463, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc4\x06\xc3\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3464, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3464, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc4\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3465, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3465, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc5\x06\xc4\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3466, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3466, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc5\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3467, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3467, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc6\x06\xc5\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3468, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3468, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc6\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3469, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3469, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc7\x06\xc6\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3470, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3470, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc7\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3471, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3471, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc8\x06\xc7\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3472, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3472, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc8\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3473, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3473, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xc9\x06\xc8\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3474, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3474, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xc9\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112
[pid  5921] getpid( <unfinished ...>
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] <... getpid resumed>)       = 5918
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=140, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3475, nlmsg_pid=5918}, {error=-ENOENT, msg=[{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3475, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\xca\x06\xc9\x06\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...]}], 8192, 0, NULL, NULL) = 140
[pid  5922] recvfrom(5 <unfinished ...>
[pid  5921] getpid( <unfinished ...>
[pid  5922] <... recvfrom resumed>, [{nlmsg_len=112, nlmsg_type=NLMSG_ERROR, nlmsg_flags=0, nlmsg_seq=3476, nlmsg_pid=5918}, {error=-ERANGE, msg=[{nlmsg_len=92, nlmsg_type=0x28 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3476, nlmsg_pid=5918}, "\x00\x00\x00\x00\x0c\x00\x00\x00\xca\x06\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x01\x00\x68\x74\x62\x00\x30\x00\x02\x00\x2c\x00\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\xe8\x03\x00\x00\x00\x00\x00\x00"]}], 8192, 0, NULL, NULL) = 112

[host] Command execution timed out after 2m30s

Crash Report: 


524/4 2026/08/15 19:01 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 173098
							output: 38
							thoughts: 271
						

Thoughts:
**My Thought Process Regarding the `qdisc_tree_reduce_backlog` Warning**

Alright, let's dissect this. I've just encountered a bug report detailing a `WARNING in qdisc_tree_reduce_backlog`. This immediately piques my interest because, as someone deeply familiar with network scheduling, I know this function is a critical piece of infrastructure for managing packet queues.

My initial step is always to examine the provided trace. The trace clearly indicates the warning originates in `qdisc_tree_reduce_backlog` within `net/sched/sch_api.c` at line 797. What's particularly telling is the call stack leading up to it. I see `sfq_rehash` and `sfq_perturbation` from `net/sched/sch_sfq.c`, and then further up the chain, `call_timer_fn` from the kernel's timer subsystem. This tells me the issue is occurring within the context of the Stochastic Fairness Queuing (SFQ) scheduler, and it's being triggered by a timer-driven event. This is a significant clue; it suggests the problem isn't necessarily a direct, immediate congestion event but rather something related to the state management or periodic cleanup within SFQ.

The fact that the reproducer timed out after a substantial 2 minutes and 30 seconds is also noteworthy. This isn't a quick crash; it implies the system was trying to perform some operation for an extended period before hitting this warning. This duration hints at a potential race condition, a deadlock, or perhaps a pathological state that the scheduler is struggling to resolve.

Next, I'm looking at the `strace` output. The repeated `recvfrom` calls, especially those returning `NLMSG_ERROR` with `ENOENT` (No such file or directory) or `ERANGE` (Numerical result out of range), are highly suspicious. `ENOENT` often signifies that something expected to exist or be accessible isn't, while `ERANGE` suggests a value exceeding its intended bounds. In the context of netlink messages (which `recvfrom` often handles for network configuration), this combination points towards malformed or invalid control messages being processed, or perhaps a failure to find a qdisc or filter that was expected to be present.

The reproducer explicitly mentions `htb` and `sfq` qdiscs. This is crucial. Hierarchical Token Bucket (HTB) and SFQ are often used together, with HTB providing rate limiting and SFQ offering fairness within those rate-limited buckets. The interaction between these two can be complex, and a bug in how they communicate or how their states are managed could easily manifest in this manner.

Finally, the specific warning message itself: `parentid != TC_H_ROOT`. This is the core of the problem as indicated by the warning. `TC_H_ROOT` is a special identifier in the traffic control subsystem that signifies the root of the traffic control hierarchy. If `qdisc_tree_reduce_backlog` is being called and expects to operate on a qdisc directly attached to the root (or a well-defined parent) but instead finds a `parentid` that's *not* `TC_H_ROOT` but also isn't valid, it indicates a structural inconsistency in the qdisc tree. This could happen if a qdisc is orphaned, misconfigured, or its parent has been removed unexpectedly, leaving it in an invalid state.

Therefore, my mental model is forming: the reproducer, through its interaction with HTB and SFQ, likely creates a scenario where a qdisc ends up in an inconsistent state. This inconsistency is then exposed when a timer (likely related to SFQ's internal maintenance or rehashing) triggers `qdisc_tree_reduce_backlog`. The function, expecting to operate within the established hierarchy, encounters a qdisc whose parent identifier is invalid (`!= TC_H_ROOT` and not properly resolvable), leading to the warning and the subsequent failure to properly reduce the backlog, ultimately causing the reproducer to hang and timeout. The `NLMSG_ERROR` with `ENOENT` and `ERANGE` likely stem from the kernel's attempt to deal with this invalid qdisc structure during netlink operations.


525/4 2026/08/15 19:01 tool grepper
0m Args:
map[Expression:qdisc_tree_reduce_backlog PathPrefix:net/sched/sch_api.c]

Results:
map[Output:net/sched/sch_api.c=759=static u32 qdisc_alloc_handle(struct net_device *dev)
--
net/sched/sch_api.c-775-
net/sched/sch_api.c:776:void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
net/sched/sch_api.c-777-{
--
net/sched/sch_api.c-813-}
net/sched/sch_api.c:814:EXPORT_SYMBOL(qdisc_tree_reduce_backlog);
net/sched/sch_api.c-815-
]

526/4 2026/08/15 19:01 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 173567
							output: 37
							thoughts: 27
						

Thoughts:
**My Journey Through `qdisc_tree_reduce_backlog`**

Alright, so my initial impulse is to dive into the nitty-gritty of `qdisc_tree_reduce_backlog` over in `net/sched/sch_api.c`. This isn't just a casual skim; I'm intending to really *understand* this function, to see how it fits into the larger picture of network traffic scheduling. I'm expecting to encounter some intricate data structures and algorithmic logic, given its role in managing the backlog of network packets within a queuing discipline. I'll be looking for its primary purpose – what exactly is it trying to achieve by "reducing the backlog"? Is it about freeing up memory, making room for higher-priority traffic, or perhaps some form of congestion control? I'll be paying close attention to the parameters it accepts and the values it returns, as these will be key to understanding its operational context. Furthermore, I'll be tracing its execution path, if possible, to see what other functions it calls and what internal states it modifies. Ultimately, my goal is to grasp the implications of its operation on overall network performance and stability.


527/4 2026/08/15 19:02 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:776 LineCount:40]

Results:
map[Contents: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 814:	EXPORT_SYMBOL(qdisc_tree_reduce_backlog);
 815:	
]

528/4 2026/08/15 19:02 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 174246
							output: 38
							thoughts: 197
						

Thoughts:
**My Debugging Journey: Tracing a TC_H_ROOT Anomaly**

I've just encountered a peculiar `WARN_ON_ONCE(parentid != TC_H_ROOT);` at line 797. My immediate thought process is to dissect what this warning is telling me. It signifies that `qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid))` returned `NULL`, which is unexpected because the `parentid` involved *wasn't* `TC_H_ROOT`. This scenario suggests a potential issue where a parent queuing discipline (qdisc) has been removed or modified, yet a child qdisc still holds a lingering reference to it. That's the core of the problem I'm trying to unravel.

My next step is to trace the execution path that leads to this warning. I notice that `sfq_perturbation` is being invoked from a timer context. This is a critical piece of information. The call trace shows:

```
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
```

This clearly indicates that `sfq_perturbation` is calling `sfq_rehash` at line 601 of `net/sched/sch_sfq.c`. So, my immediate focus shifts to understanding what's happening within `sfq_rehash` at that specific line. I need to examine the code there to see how it's interacting with the parent qdisc lookup and why it might be encountering a situation where a non-root parent is no longer found.


529/4 2026/08/15 19:02 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:590 LineCount:40]

Results:
map[Contents: 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 603:	
 604:	static void sfq_perturbation(struct timer_list *t)
 605:	{
 606:		struct sfq_sched_data *q = timer_container_of(q, t, perturb_timer);
 607:		struct Qdisc *sch = q->sch;
 608:		spinlock_t *root_lock;
 609:		siphash_key_t nkey;
 610:		int period;
 611:	
 612:		get_random_bytes(&nkey, sizeof(nkey));
 613:		rcu_read_lock();
 614:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 615:		spin_lock(root_lock);
 616:		q->perturbation = nkey;
 617:		if (!q->filter_list && q->tail)
 618:			sfq_rehash(sch);
 619:		spin_unlock(root_lock);
 620:	
 621:		/* q->perturb_period can change under us from
 622:		 * sfq_change() and sfq_destroy().
 623:		 */
 624:		period = READ_ONCE(q->perturb_period);
 625:		if (period)
 626:			mod_timer(&q->perturb_timer, jiffies + period);
 627:		rcu_read_unlock();
 628:	}
 629:	
]

530/4 2026/08/15 19:02 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 175083
							output: 31
							thoughts: 1285
						

Thoughts:
**My Thought Process Unraveling the Netlink Mystery**

Okay, so I'm digging into this reproduction attempt, and it seems the core issue lies in how this user is trying to manipulate a hierarchy of qdiscs. Specifically, they're creating this complex layered structure and then attempting to delete a parent qdisc while some timer mechanism is still active. That's immediately a red flag for potential race conditions or stale state issues.

My initial scan of the `strace` output confirmed a flurry of activity on the netlink socket – lots of messages being sent back and forth, which is expected when dealing with qdisc manipulation. The reproducer timing out further suggests that something is blocking or stuck, rather than a clean failure.

Looking closer at the `strace` snippet, I'm seeing two key netlink messages that stand out: `RTM_NEWQDISC` (type `0x24`) and `RTM_NEWTCLASS` (type `0x28`). These are the building blocks for setting up traffic control structures. The `RTM_NEWQDISC` message seems to be associated with the `sfq` (Stochastic Fairness Queuing) algorithm, and the `RTM_NEWTCLASS` message is for `htb` (Hierarchy Token Bucket).

Here's where the pieces start to click into place: the `sfq` qdisc creation is failing with an `-ENOENT` error, meaning "No such file or directory." Simultaneously, the `htb` class creation is failing with an `-ERANGE` error, which often indicates an out-of-bounds value or parameter.

Now, this is the crucial insight: if the creation of the `htb` class (which is likely intended to be a parent or a prerequisite for the `sfq` qdisc) is failing with `-ERANGE`, then it logically follows that the subsequent attempt to create the `sfq` qdisc would fail with `-ENOENT`. The `sfq` qdisc can't find its intended parent because that parent (`htb` class) never successfully came into existence due to the `-ERANGE` error.

So, my focus immediately shifts to *why* the `htb` class creation is failing with `-ERANGE`. This is the root cause I need to investigate further. The next logical step for me is to dive into the `net/sched/sch_htb.c` source code to understand what specific condition or parameter would trigger an `-ERANGE` error within the `htb` class creation logic. That's where the real problem lies.


531/4 2026/08/15 19:02 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:ERANGE PathPrefix:net/sched/sch_htb.c]

Results:
map[Output:]

532/4 2026/08/15 19:02 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 176397
							output: 31
							thoughts: 20
						

Thoughts:
**My Thought Process on Investigating `-ERANGE` in `net/sched/sch_api.c`**

Right, so my immediate instinct upon encountering the mention of `-ERANGE` is to dive into the Linux kernel's networking scheduler API. Specifically, I want to pinpoint exactly *where* and *why* this particular error code might be returned. My target is the file `net/sched/sch_api.c`, which I know is the heart of the traffic control (tc) subsystem's user-space interface.

My mental model of `sch_api.c` is that it handles the translation between user-space requests (like setting up qdiscs, classes, and filters) and the underlying kernel data structures and operations. Therefore, if `-ERANGE` is being returned, it's highly likely that some parameter being passed from user space to the kernel's scheduling logic is outside the acceptable range.

I'm picturing a scenario where a user is trying to configure a traffic control object – perhaps setting a rate limit, a priority, a buffer size, or some other numerical attribute. The kernel, as part of its validation, checks if this value falls within its defined bounds. If it doesn't, it's going to signal an error, and `-ERANGE` is the standard POSIX way of indicating an out-of-range value.

So, my next step in my head is to scan the source code of `sch_api.c` for occurrences of `return -ERANGE;` or any function calls that might directly return this error. I'll be looking for places where user-provided arguments are being parsed and validated. I expect to find checks against maximum or minimum values for things like:

*   **Bandwidth/Rate:** Perhaps a user is trying to set a rate that's astronomically high or infinitesimally low, exceeding the kernel's capability or precision.
*   **Buffer Sizes:** Similar to rates, buffer sizes might have practical limits.
*   **Priorities/Weights:** There are often defined ranges for these values to ensure proper ordering.
*   **Timestamps or Durations:** Less common for `-ERANGE` specifically, but possible if units are being misinterpreted or if values are outside a plausible time window for the scheduler's operation.
*   **Specific Scheduler Parameters:** Each scheduler (like `htb`, `fq_codel`, `prio`) has its own set of parameters, and it's within the validation of these specific parameters that `-ERANGE` is most likely to surface.

I'll be paying close attention to the function signatures and the context in which `return -ERANGE;` appears. Is it in a function that handles `tc_newqdisc`, `tc_changex`, `tc_link`, or perhaps a specific configuration function for a particular qdisc type? The surrounding code will give me the crucial context about *which* parameter is out of range.

Ultimately, my goal is to identify the specific kernel API call and the data structure or attribute within that call that triggered the `-ERANGE` error. This will tell me what the user did wrong and how to correct it.


533/4 2026/08/15 19:02 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:ERANGE PathPrefix:net/sched/sch_api.c]

Results:
map[Output:]

534/4 2026/08/15 19:02 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 176446
							output: 26
							thoughts: 95
						

Thoughts:
**My Thought Process on Locating the `ERANGE` Error Handling for `RTM_NEWTCLASS`**

Alright, so my initial hunch was that the `ERANGE` error related to `RTM_NEWTCLASS` might be lurking in the `net/sched/sch_htb.c` file. It's a common place for traffic shaping logic, and I figured it was a plausible spot for such a parameter-related error. However, I decided to be thorough and first do a broad `grep` for `ERANGE` across the relevant kernel subsystems to see if it popped up anywhere unexpected.

Once that broad search didn't immediately point me to the precise location, I started narrowing my focus. I considered `net/core/rtnetlink.c` because that's where the Netlink routing socket messages are processed, and `RTM_NEWTCLASS` is certainly a Netlink message. I also thought about `net/sched/class.c`, which deals with generic class-based scheduling, as a potential candidate.

However, my deeper dive into the code structure led me to realize that the core handling of `RTM_NEWTCLASS` messages, specifically the logic that would likely generate an `ERANGE` error if parameters were out of bounds, is actually found in `net/sched/sch_api.c`. It's within the `tc_ctl_tclass` function that this particular Netlink command is managed, and that's where I'd expect to find the validation that could lead to the `ERANGE` return value.


535/4 2026/08/15 19:02 tool grepper
0m Args:
map[Expression:ERANGE PathPrefix:net/sched/]

Results:
map[Output:net/sched/act_tunnel_key.c=86=tunnel_key_copy_geneve_opt(const struct nlattr *nla, void *dst, int dst_len,
--
net/sched/act_tunnel_key.c-109-		NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long");
net/sched/act_tunnel_key.c:110:		return -ERANGE;
net/sched/act_tunnel_key.c-111-	}
--
net/sched/act_tunnel_key.c-113-		NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long");
net/sched/act_tunnel_key.c:114:		return -ERANGE;
net/sched/act_tunnel_key.c-115-	}
--
net/sched/act_vlan.c=114=static int tcf_vlan_init(struct net *net, struct nlattr *nla,
--
net/sched/act_vlan.c-171-				tcf_idr_cleanup(tn, index);
net/sched/act_vlan.c:172:			return -ERANGE;
net/sched/act_vlan.c-173-		}
--
net/sched/cls_flower.c=1234=static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key,
--
net/sched/cls_flower.c-1246-	if (key->enc_opts.len > FLOW_DIS_TUN_OPTS_MAX - 4)
net/sched/cls_flower.c:1247:		return -ERANGE;
net/sched/cls_flower.c-1248-
--
net/sched/cls_flower.c-1291-			NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is less than 4 bytes long");
net/sched/cls_flower.c:1292:			return -ERANGE;
net/sched/cls_flower.c-1293-		}
--
net/sched/cls_flower.c-1295-			NL_SET_ERR_MSG(extack, "Tunnel key geneve option data is not a multiple of 4 bytes long");
net/sched/cls_flower.c:1296:			return -ERANGE;
net/sched/cls_flower.c-1297-		}
--
net/sched/cls_flower.c-1302-			NL_SET_ERR_MSG(extack, "Tunnel options exceeds max size");
net/sched/cls_flower.c:1303:			return -ERANGE;
net/sched/cls_flower.c-1304-		}
--
net/sched/sch_taprio.c=1700=static int taprio_parse_tc_entry(struct Qdisc *sch,
--
net/sched/sch_taprio.c-1734-			NL_SET_ERR_MSG_MOD(extack, "TC max SDU exceeds device max MTU");
net/sched/sch_taprio.c:1735:			return -ERANGE;
net/sched/sch_taprio.c-1736-		}
]

536/4 2026/08/15 19:02 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 177394
							output: 39
							thoughts: 95
						

Thoughts:
**My Thought Process on Decoding the `ERANGE` Error**

My initial thought, when encountering an `ERANGE` error, was to immediately suspect the `nla_get_u32` function. I recalled that `ERANGE` signifies an out-of-range value, and `nla_get_u32` is responsible for retrieving unsigned 32-bit integers from netlink attributes. My immediate hypothesis was that a value being passed through `nla_get_u32` was simply too large for its intended destination. I even made a mental note of the specific value of `ERANGE` (34) for quick reference.

However, as I delved deeper, I realized this assumption might be too narrow. I decided to broaden my investigation and specifically check the `net/sched/sch_htb.c` file for any occurrences of the value `34`. My reasoning here was to see if `ERANGE` was being explicitly handled or returned in a context related to the HTB (Hierarchical Token Bucket) scheduler, which is a common area where such value-related errors could manifest.

Crucially, I then considered a more fundamental possibility: the error might not be originating from the value *itself* being out of range during its retrieval, but rather from the *parsing* of the netlink message. It's entirely plausible that the structure or content of the netlink message was malformed in a way that led the parsing mechanism to interpret something as being out of the expected range, even if the raw data wasn't inherently problematic in isolation.

This led me to focus on the API layer responsible for handling these netlink control messages. My next logical step was to examine the `tc_ctl_tclass` function within `net/sched/sch_api.c`. I reasoned that this function, being central to controlling traffic classes, would be the most likely place where netlink attribute parsing and validation would occur, and therefore a prime candidate for surfacing an `ERANGE` error due to parsing issues. My focus shifted from the value retrieval itself to the upstream processing that might be misinterpreting the data.


537/4 2026/08/15 19:02 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:2160 LineCount:100]

Results:
map[Contents:2160:		args.new_cl = new_cl;
2161:		args.w.fn = tc_bind_class_walker;
2162:		q->ops->cl_ops->walk(q, &args.w);
2163:	}
2164:	
2165:	#else
2166:	
2167:	static void tc_bind_tclass(struct Qdisc *q, u32 portid, u32 clid,
2168:				   unsigned long new_cl)
2169:	{
2170:	}
2171:	
2172:	#endif
2173:	
2174:	static int __tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n,
2175:				   struct netlink_ext_ack *extack,
2176:				   struct net_device *dev,
2177:				   struct nlattr *tca[TCA_MAX + 1],
2178:				   struct tcmsg *tcm)
2179:	{
2180:		struct net *net = sock_net(skb->sk);
2181:		const struct Qdisc_class_ops *cops;
2182:		struct Qdisc *q = NULL;
2183:		unsigned long cl = 0;
2184:		unsigned long new_cl;
2185:		u32 portid;
2186:		u32 clid;
2187:		u32 qid;
2188:		int err;
2189:	
2190:		/*
2191:		   parent == TC_H_UNSPEC - unspecified parent.
2192:		   parent == TC_H_ROOT   - class is root, which has no parent.
2193:		   parent == X:0	 - parent is root class.
2194:		   parent == X:Y	 - parent is a node in hierarchy.
2195:		   parent == 0:Y	 - parent is X:Y, where X:0 is qdisc.
2196:	
2197:		   handle == 0:0	 - generate handle from kernel pool.
2198:		   handle == 0:Y	 - class is X:Y, where X:0 is qdisc.
2199:		   handle == X:Y	 - clear.
2200:		   handle == X:0	 - root class.
2201:		 */
2202:	
2203:		/* Step 1. Determine qdisc handle X:0 */
2204:	
2205:		portid = tcm->tcm_parent;
2206:		clid = tcm->tcm_handle;
2207:		qid = TC_H_MAJ(clid);
2208:	
2209:		if (portid != TC_H_ROOT) {
2210:			u32 qid1 = TC_H_MAJ(portid);
2211:	
2212:			if (qid && qid1) {
2213:				/* If both majors are known, they must be identical. */
2214:				if (qid != qid1)
2215:					return -EINVAL;
2216:			} else if (qid1) {
2217:				qid = qid1;
2218:			} else if (qid == 0)
2219:				qid = rtnl_dereference(dev->qdisc)->handle;
2220:	
2221:			/* Now qid is genuine qdisc handle consistent
2222:			 * both with parent and child.
2223:			 *
2224:			 * TC_H_MAJ(portid) still may be unspecified, complete it now.
2225:			 */
2226:			if (portid)
2227:				portid = TC_H_MAKE(qid, portid);
2228:		} else {
2229:			if (qid == 0)
2230:				qid = rtnl_dereference(dev->qdisc)->handle;
2231:		}
2232:	
2233:		/* OK. Locate qdisc */
2234:		q = qdisc_lookup(dev, qid);
2235:		if (!q)
2236:			return -ENOENT;
2237:	
2238:		/* An check that it supports classes */
2239:		cops = q->ops->cl_ops;
2240:		if (cops == NULL)
2241:			return -EINVAL;
2242:	
2243:		/* Now try to get class */
2244:		if (clid == 0) {
2245:			if (portid == TC_H_ROOT)
2246:				clid = qid;
2247:		} else
2248:			clid = TC_H_MAKE(qid, clid);
2249:	
2250:		if (clid)
2251:			cl = cops->find(q, clid);
2252:	
2253:		if (cl == 0) {
2254:			err = -ENOENT;
2255:			if (n->nlmsg_type != RTM_NEWTCLASS ||
2256:			    !(n->nlmsg_flags & NLM_F_CREATE))
2257:				goto out;
2258:		} else {
2259:			switch (n->nlmsg_type) {
]

538/4 2026/08/15 19:02 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 179003
							output: 39
							thoughts: 14
						

Thoughts:
**My Thought Process on `__tc_ctl_tclass`**

Alright, I need to dive deeper into `__tc_ctl_tclass`. My immediate goal is to understand the intricacies of this particular control structure, whatever it may be within the context of the system I'm analyzing. I'm assuming, based on the naming convention, that it's related to terminal control or perhaps some form of class-based resource management. My objective is to fully grasp its functionality, its parameters, its interaction with other components, and ultimately, how it contributes to the overall system behavior. I'm looking for details on its state management, any potential side effects of its operation, and its role in event handling or data flow. Essentially, I need to build a comprehensive mental model of `__tc_ctl_tclass` so that I can accurately predict its impact on the system's performance and stability.


539/4 2026/08/15 19:02 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:2260 LineCount:100]

Results:
map[Contents:2260:			case RTM_NEWTCLASS:
2261:				err = -EEXIST;
2262:				if (n->nlmsg_flags & NLM_F_EXCL)
2263:					goto out;
2264:				break;
2265:			case RTM_DELTCLASS:
2266:				err = tclass_del_notify(net, cops, skb, n, q, cl, extack);
2267:				/* Unbind the class with flilters with 0 */
2268:				tc_bind_tclass(q, portid, clid, 0);
2269:				goto out;
2270:			case RTM_GETTCLASS:
2271:				err = tclass_get_notify(net, skb, n, q, cl, extack);
2272:				goto out;
2273:			default:
2274:				err = -EINVAL;
2275:				goto out;
2276:			}
2277:		}
2278:	
2279:		if (tca[TCA_INGRESS_BLOCK] || tca[TCA_EGRESS_BLOCK]) {
2280:			NL_SET_ERR_MSG(extack, "Shared blocks are not supported for classes");
2281:			return -EOPNOTSUPP;
2282:		}
2283:	
2284:		/* Prevent creation of traffic classes with classid TC_H_ROOT */
2285:		if (clid == TC_H_ROOT) {
2286:			NL_SET_ERR_MSG(extack, "Cannot create traffic class with classid TC_H_ROOT");
2287:			return -EINVAL;
2288:		}
2289:	
2290:		new_cl = cl;
2291:		err = -EOPNOTSUPP;
2292:		if (cops->change)
2293:			err = cops->change(q, clid, portid, tca, &new_cl, extack);
2294:		if (err == 0) {
2295:			tclass_notify(net, skb, n, q, new_cl, RTM_NEWTCLASS, extack);
2296:			/* We just create a new class, need to do reverse binding. */
2297:			if (cl != new_cl)
2298:				tc_bind_tclass(q, portid, clid, new_cl);
2299:		}
2300:	out:
2301:		return err;
2302:	}
2303:	
2304:	static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n,
2305:				 struct netlink_ext_ack *extack)
2306:	{
2307:		struct net *net = sock_net(skb->sk);
2308:		struct tcmsg *tcm = nlmsg_data(n);
2309:		struct nlattr *tca[TCA_MAX + 1];
2310:		struct net_device *dev;
2311:		int err;
2312:	
2313:		err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,
2314:					     rtm_tca_policy, extack);
2315:		if (err < 0)
2316:			return err;
2317:	
2318:		dev = __dev_get_by_index(net, tcm->tcm_ifindex);
2319:		if (!dev)
2320:			return -ENODEV;
2321:	
2322:		netdev_lock_ops(dev);
2323:		err = __tc_ctl_tclass(skb, n, extack, dev, tca, tcm);
2324:		netdev_unlock_ops(dev);
2325:	
2326:		return err;
2327:	}
2328:	
2329:	struct qdisc_dump_args {
2330:		struct qdisc_walker	w;
2331:		struct sk_buff		*skb;
2332:		struct netlink_callback	*cb;
2333:	};
2334:	
2335:	static int qdisc_class_dump(struct Qdisc *q, unsigned long cl,
2336:				    struct qdisc_walker *arg)
2337:	{
2338:		struct qdisc_dump_args *a = (struct qdisc_dump_args *)arg;
2339:	
2340:		return tc_fill_tclass(a->skb, q, cl, NETLINK_CB(a->cb->skb).portid,
2341:				      a->cb->nlh->nlmsg_seq, NLM_F_MULTI,
2342:				      RTM_NEWTCLASS, NULL);
2343:	}
2344:	
2345:	static int tc_dump_tclass_qdisc(struct Qdisc *q, struct sk_buff *skb,
2346:					struct tcmsg *tcm, struct netlink_callback *cb,
2347:					int *t_p, int s_t)
2348:	{
2349:		struct qdisc_dump_args arg;
2350:	
2351:		if (tc_qdisc_dump_ignore(q, false, NULL) ||
2352:		    *t_p < s_t || !q->ops->cl_ops ||
2353:		    (tcm->tcm_parent &&
2354:		     TC_H_MAJ(tcm->tcm_parent) != q->handle)) {
2355:			(*t_p)++;
2356:			return 0;
2357:		}
2358:		if (*t_p > s_t)
2359:			memset(&cb->args[1], 0, sizeof(cb->args)-sizeof(cb->args[0]));
]

540/4 2026/08/15 19:02 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 180686
							output: 34
							thoughts: 59
						

Thoughts:
**My Thought Process on the `-ERANGE` Error**

Okay, so I'm seeing this `-ERANGE` return value, and my immediate instinct, based on how these kernel networking modules usually work, is that it's coming from the `cops->change(q, clid, portid, tca, &new_cl, extack);` function call. This is a pretty standard pattern for operations that modify existing classful queueing disciplines (qdiscs) in the Linux networking stack.

My next step is to dive into the source code itself to confirm this. I'm going to look at `net/sched/sch_htb.c` and specifically examine the `htb_change_class` function. I expect to find within `htb_change_class` the logic that ultimately invokes `cops->change` and handles its return codes. The `ERANGE` error typically signifies that a provided parameter is out of the acceptable range, so I'll be looking for any input validation within `htb_change_class` or within the `cops->change` implementation (which might be a generic function pointer that `htb_change_class` is providing a specific handler for) that could lead to this specific error. My hypothesis is that either the `clid`, `portid`, or perhaps a value within the `tca` structure (which likely contains the parameters for the change operation) is exceeding some defined limit within the HTB qdisc.


541/4 2026/08/15 19:03 tool grepper
0m Args:
map[Expression:htb_change_class PathPrefix:net/sched/sch_htb.c]

Results:
map[Output:net/sched/sch_htb.c=534=htb_class_mode(struct htb_class *cl, s64 *diff)
--
net/sched/sch_htb.c-550-/**
net/sched/sch_htb.c:551: * htb_change_class_mode - changes classe's mode
net/sched/sch_htb.c-552- * @q: the priority event queue
--
net/sched/sch_htb.c=562=static void
net/sched/sch_htb.c:563:htb_change_class_mode(struct htb_sched *q, struct htb_class *cl, s64 *diff)
net/sched/sch_htb.c-564-{
--
net/sched/sch_htb.c=700=static void htb_charge_class(struct htb_sched *q, struct htb_class *cl,
--
net/sched/sch_htb.c-722-		diff = 0;
net/sched/sch_htb.c:723:		htb_change_class_mode(q, cl, &diff);
net/sched/sch_htb.c-724-		if (old_mode != cl->cmode) {
--
net/sched/sch_htb.c=749=static s64 htb_do_events(struct htb_sched *q, const int level,
--
net/sched/sch_htb.c-772-		diff = min_t(s64, q->now - cl->t_c, cl->mbuffer);
net/sched/sch_htb.c:773:		htb_change_class_mode(q, cl, &diff);
net/sched/sch_htb.c-774-		if (cl->cmode != HTB_CAN_SEND)
--
net/sched/sch_htb.c=1696=static int htb_delete(struct Qdisc *sch, unsigned long arg,
--
net/sched/sch_htb.c-1761-
net/sched/sch_htb.c:1762:static int htb_change_class(struct Qdisc *sch, u32 classid,
net/sched/sch_htb.c-1763-			    u32 parentid, struct nlattr **tca,
--
net/sched/sch_htb.c=2127=static const struct Qdisc_class_ops htb_class_ops = {
--
net/sched/sch_htb.c-2132-	.find		=	htb_search,
net/sched/sch_htb.c:2133:	.change		=	htb_change_class,
net/sched/sch_htb.c-2134-	.delete		=	htb_delete,
]

542/4 2026/08/15 19:03 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 181466
							output: 39
							thoughts: 11
						

Thoughts:
**My Thought Process Regarding `htb_change_class`**

Alright, so I've just encountered this piece of code, `htb_change_class`. My immediate instinct is to delve into its purpose and how it operates. I need to understand its function within the broader system, and more specifically, what it's designed to *do*. Is it a utility, a core logic component, or perhaps something related to state management or UI manipulation?

My first question is: what is the *intent* behind `htb_change_class`? What problem is it trying to solve? I'll be looking for clues in its name, any accompanying comments, and its arguments to infer its primary responsibility. The name itself, `change_class`, strongly suggests it's involved in modifying CSS classes, likely on HTML elements. This immediately tells me it's probably client-side focused and deals with visual presentation.

Next, I'll examine its signature. What parameters does it accept? Are they clear and descriptive? Understanding the inputs will tell me what information it needs to perform its task. For example, does it need a reference to the specific element to modify? Does it take a class name or a set of class names to add or remove? Does it have options for how the change should occur (e.g., toggle, replace, add if not present)? The types of these parameters will be crucial – are we dealing with strings, DOM elements, arrays, booleans, or perhaps more complex objects?

Following that, I'll trace its execution flow. What are the core operations it performs? I'll be looking for DOM manipulation methods. Common patterns would involve `element.classList.add()`, `element.classList.remove()`, `element.classList.toggle()`, or perhaps more direct manipulation of the `className` property. I'll also consider if there are any conditional branches within the function – are there different behaviors based on the input parameters or the state of the element itself?

I'm also thinking about potential side effects. Does `htb_change_class` just modify classes, or does it trigger other events or updates? For instance, does changing a class implicitly update some other part of the application state or re-render a component? In a well-designed system, this function should ideally focus on its single responsibility, but it's important to be aware of any unintended consequences.

Furthermore, I'll be considering its robustness. How does it handle edge cases? What happens if the element it's supposed to modify doesn't exist? What if the class names are invalid or malformed? Are there any error-handling mechanisms in place? As an expert, I'm always looking for how code gracefully handles unexpected situations.

Finally, I'll think about its integration. Where is `htb_change_class` called from? Understanding its callers will provide context about its usage patterns and how it fits into the larger architectural picture. Is it used in response to user interactions, data changes, or some other event?

In essence, my thought process is a systematic breakdown: understand the *what*, *why*, and *how* of `htb_change_class`, considering its inputs, outputs, internal logic, potential side effects, robustness, and its place within the system. It's about building a mental model of its behavior and its contribution.


543/4 2026/08/15 19:03 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1762 LineCount:100]

Results:
map[Contents:1762:	static int htb_change_class(struct Qdisc *sch, u32 classid,
1763:				    u32 parentid, struct nlattr **tca,
1764:				    unsigned long *arg, struct netlink_ext_ack *extack)
1765:	{
1766:		int err = -EINVAL;
1767:		struct htb_sched *q = qdisc_priv(sch);
1768:		struct htb_class *cl = (struct htb_class *)*arg, *parent;
1769:		struct tc_htb_qopt_offload offload_opt;
1770:		struct nlattr *opt = tca[TCA_OPTIONS];
1771:		struct nlattr *tb[TCA_HTB_MAX + 1];
1772:		struct Qdisc *parent_qdisc = NULL;
1773:		struct netdev_queue *dev_queue;
1774:		struct tc_htb_opt *hopt;
1775:		u64 rate64, ceil64;
1776:		int warn = 0;
1777:	
1778:		/* extract all subattrs from opt attr */
1779:		if (!opt)
1780:			goto failure;
1781:	
1782:		err = nla_parse_nested_deprecated(tb, TCA_HTB_MAX, opt, htb_policy,
1783:						  extack);
1784:		if (err < 0)
1785:			goto failure;
1786:	
1787:		err = -EINVAL;
1788:		if (tb[TCA_HTB_PARMS] == NULL)
1789:			goto failure;
1790:	
1791:		parent = parentid == TC_H_ROOT ? NULL : htb_find(parentid, sch);
1792:	
1793:		hopt = nla_data(tb[TCA_HTB_PARMS]);
1794:		if (!hopt->rate.rate || !hopt->ceil.rate)
1795:			goto failure;
1796:	
1797:		if (q->offload) {
1798:			/* Options not supported by the offload. */
1799:			if (hopt->rate.overhead || hopt->ceil.overhead) {
1800:				NL_SET_ERR_MSG(extack, "HTB offload doesn't support the overhead parameter");
1801:				goto failure;
1802:			}
1803:			if (hopt->rate.mpu || hopt->ceil.mpu) {
1804:				NL_SET_ERR_MSG(extack, "HTB offload doesn't support the mpu parameter");
1805:				goto failure;
1806:			}
1807:		}
1808:	
1809:		/* Keeping backward compatible with rate_table based iproute2 tc */
1810:		if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
1811:			qdisc_put_rtab(qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB],
1812:						      NULL));
1813:	
1814:		if (hopt->ceil.linklayer == TC_LINKLAYER_UNAWARE)
1815:			qdisc_put_rtab(qdisc_get_rtab(&hopt->ceil, tb[TCA_HTB_CTAB],
1816:						      NULL));
1817:	
1818:		rate64 = nla_get_u64_default(tb[TCA_HTB_RATE64], 0);
1819:		ceil64 = nla_get_u64_default(tb[TCA_HTB_CEIL64], 0);
1820:	
1821:		if (!cl) {		/* new class */
1822:			struct net_device *dev = qdisc_dev(sch);
1823:			struct Qdisc *new_q, *old_q;
1824:			int prio;
1825:			struct {
1826:				struct nlattr		nla;
1827:				struct gnet_estimator	opt;
1828:			} est = {
1829:				.nla = {
1830:					.nla_len	= nla_attr_size(sizeof(est.opt)),
1831:					.nla_type	= TCA_RATE,
1832:				},
1833:				.opt = {
1834:					/* 4s interval, 16s averaging constant */
1835:					.interval	= 2,
1836:					.ewma_log	= 2,
1837:				},
1838:			};
1839:	
1840:			/* check for valid classid */
1841:			if (!classid || TC_H_MAJ(classid ^ sch->handle) ||
1842:			    htb_find(classid, sch))
1843:				goto failure;
1844:	
1845:			/* check maximal depth */
1846:			if (parent && parent->parent && parent->parent->level < 2) {
1847:				NL_SET_ERR_MSG_MOD(extack, "tree is too deep");
1848:				goto failure;
1849:			}
1850:			err = -ENOBUFS;
1851:			cl = kzalloc_obj(*cl);
1852:			if (!cl)
1853:				goto failure;
1854:	
1855:			gnet_stats_basic_sync_init(&cl->bstats);
1856:			gnet_stats_basic_sync_init(&cl->bstats_bias);
1857:	
1858:			err = tcf_block_get(&cl->block, &cl->filter_list, sch, extack);
1859:			if (err) {
1860:				kfree(cl);
1861:				goto failure;
]

544/4 2026/08/15 19:03 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 183154
							output: 39
							thoughts: 41
						

Thoughts:
**My Thought Process Regarding `ERANGE` in `htb_change_class`**

Initially, I'm questioning a potential oversight: could `tcf_block_get` actually return `ERANGE`? My immediate instinct is to verify this. If it *could*, then my understanding of how `htb_change_class` handles errors might need adjustment. However, my current knowledge suggests `tcf_block_get` is unlikely to be the source of an `ERANGE` error in this context. Therefore, my next step is to pivot and investigate where `ERANGE` *is* actually originating from within the `htb_change_class` function itself. This will involve tracing the execution flow and examining the various system calls or library functions that `htb_change_class` invokes, looking for the specific condition that leads to the `ERANGE` error being signaled.


545/4 2026/08/15 19:03 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1862 LineCount:100]

Results:
map[Contents:1862:			}
1863:			if (htb_rate_est || tca[TCA_RATE]) {
1864:				err = gen_new_estimator(&cl->bstats, NULL,
1865:							&cl->rate_est,
1866:							NULL,
1867:							true,
1868:							tca[TCA_RATE] ? : &est.nla);
1869:				if (err)
1870:					goto err_block_put;
1871:			}
1872:	
1873:			cl->children = 0;
1874:			RB_CLEAR_NODE(&cl->pq_node);
1875:	
1876:			for (prio = 0; prio < TC_HTB_NUMPRIO; prio++)
1877:				RB_CLEAR_NODE(&cl->node[prio]);
1878:	
1879:			cl->common.classid = classid;
1880:	
1881:			/* Make sure nothing interrupts us in between of two
1882:			 * ndo_setup_tc calls.
1883:			 */
1884:			ASSERT_RTNL();
1885:	
1886:			/* create leaf qdisc early because it uses kmalloc(GFP_KERNEL)
1887:			 * so that can't be used inside of sch_tree_lock
1888:			 * -- thanks to Karlis Peisenieks
1889:			 */
1890:			if (!q->offload) {
1891:				dev_queue = sch->dev_queue;
1892:			} else if (!(parent && !parent->level)) {
1893:				/* Assign a dev_queue to this classid. */
1894:				offload_opt = (struct tc_htb_qopt_offload) {
1895:					.command = TC_HTB_LEAF_ALLOC_QUEUE,
1896:					.classid = cl->common.classid,
1897:					.parent_classid = parent ?
1898:						TC_H_MIN(parent->common.classid) :
1899:						TC_HTB_CLASSID_ROOT,
1900:					.rate = max_t(u64, hopt->rate.rate, rate64),
1901:					.ceil = max_t(u64, hopt->ceil.rate, ceil64),
1902:					.prio = hopt->prio,
1903:					.quantum = hopt->quantum,
1904:					.extack = extack,
1905:				};
1906:				err = htb_offload(dev, &offload_opt);
1907:				if (err) {
1908:					NL_SET_ERR_MSG_WEAK(extack,
1909:							    "Failed to offload TC_HTB_LEAF_ALLOC_QUEUE");
1910:					goto err_kill_estimator;
1911:				}
1912:				dev_queue = netdev_get_tx_queue(dev, offload_opt.qid);
1913:			} else { /* First child. */
1914:				dev_queue = htb_offload_get_queue(parent);
1915:				old_q = htb_graft_helper(dev_queue, NULL);
1916:				WARN_ON(old_q != parent->leaf.q);
1917:				offload_opt = (struct tc_htb_qopt_offload) {
1918:					.command = TC_HTB_LEAF_TO_INNER,
1919:					.classid = cl->common.classid,
1920:					.parent_classid =
1921:						TC_H_MIN(parent->common.classid),
1922:					.rate = max_t(u64, hopt->rate.rate, rate64),
1923:					.ceil = max_t(u64, hopt->ceil.rate, ceil64),
1924:					.prio = hopt->prio,
1925:					.quantum = hopt->quantum,
1926:					.extack = extack,
1927:				};
1928:				err = htb_offload(dev, &offload_opt);
1929:				if (err) {
1930:					NL_SET_ERR_MSG_WEAK(extack,
1931:							    "Failed to offload TC_HTB_LEAF_TO_INNER");
1932:					htb_graft_helper(dev_queue, old_q);
1933:					goto err_kill_estimator;
1934:				}
1935:				_bstats_update(&parent->bstats_bias,
1936:					       u64_stats_read(&old_q->bstats.bytes),
1937:					       u64_stats_read(&old_q->bstats.packets));
1938:				qdisc_put(old_q);
1939:			}
1940:			new_q = qdisc_create_dflt(dev_queue, &pfifo_qdisc_ops,
1941:						  classid, NULL);
1942:			if (q->offload) {
1943:				/* One ref for cl->leaf.q, the other for dev_queue->qdisc. */
1944:				if (new_q)
1945:					qdisc_refcount_inc(new_q);
1946:				old_q = htb_graft_helper(dev_queue, new_q);
1947:				/* No qdisc_put needed. */
1948:				WARN_ON(!(old_q->flags & TCQ_F_BUILTIN));
1949:			}
1950:			sch_tree_lock(sch);
1951:			if (parent && !parent->level) {
1952:				/* turn parent into inner node */
1953:				qdisc_purge_queue(parent->leaf.q);
1954:				parent_qdisc = parent->leaf.q;
1955:				htb_deactivate(q, parent);
1956:	
1957:				/* remove from evt list because of level change */
1958:				if (parent->cmode != HTB_CAN_SEND) {
1959:					htb_safe_rb_erase(&parent->pq_node, &q->hlevel[0].wait_pq);
1960:					parent->cmode = HTB_CAN_SEND;
1961:				}
]

546/4 2026/08/15 19:03 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 184980
							output: 33
							thoughts: 90
						

Thoughts:
**My Mental Odyssey to Locate `ERANGE`**

My initial question is a simple one, yet it feels like I'm searching for a needle in a haystack: "Where is `ERANGE`?" My first instinct is to look within `htb_offload`. However, a quick mental check, or perhaps a rapid scan of my internal knowledge base, tells me that `htb_offload` itself is more likely a macro or a function, not a direct container for constants like `ERANGE`. This path seems to lead to a dead end, or at least not the direct answer I’m seeking.

Then, a new hypothesis emerges. Could `ERANGE` be a return value from `qdisc_create_dflt`? I entertain this for a moment, but then recall that `qdisc_create_dflt` typically returns `NULL` upon failure. `ERANGE` signifies a different kind of error – an out-of-range value. So, this line of inquiry, while plausible, doesn't quite fit the context of what `ERANGE` typically represents in error handling.

This leaves me circling back to my original suspicion, but with a refined focus. "What if `ERANGE` is *returned by* `htb_offload`?" This is a more precise formulation. Instead of `htb_offload` *containing* `ERANGE`, I'm now considering it as a *producer* of this error code. This requires me to delve deeper into the behavior and potential error conditions of `htb_offload` itself. Therefore, my next logical step, my next mental action, is to "check `htb_offload`" with this specific possibility in mind – looking for scenarios where it might signal an out-of-range error.


547/4 2026/08/15 19:03 tool grepper
0m Args:
map[Expression:htb_offload PathPrefix:net/sched/sch_htb.c]

Results:
map[Output:net/sched/sch_htb.c=1037=static void htb_work_func(struct work_struct *work)
--
net/sched/sch_htb.c-1046-
net/sched/sch_htb.c:1047:static int htb_offload(struct net_device *dev, struct tc_htb_qopt_offload *opt)
net/sched/sch_htb.c-1048-{
--
net/sched/sch_htb.c=1052=static int htb_init(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_htb.c-1143-	};
net/sched/sch_htb.c:1144:	err = htb_offload(dev, &offload_opt);
net/sched/sch_htb.c-1145-	if (err)
--
net/sched/sch_htb.c=1240=static int htb_dump_class(struct Qdisc *sch, unsigned long arg,
--
net/sched/sch_htb.c-1288-
net/sched/sch_htb.c:1289:static void htb_offload_aggregate_stats(struct htb_sched *q,
net/sched/sch_htb.c-1290-					struct htb_class *cl)
--
net/sched/sch_htb.c=1318=htb_dump_class_stats(struct Qdisc *sch, unsigned long arg, struct gnet_dump *d)
--
net/sched/sch_htb.c-1352-		} else {
net/sched/sch_htb.c:1353:			htb_offload_aggregate_stats(q, cl);
net/sched/sch_htb.c-1354-		}
--
net/sched/sch_htb.c=1367=htb_select_queue(struct Qdisc *sch, struct tcmsg *tcm)
--
net/sched/sch_htb.c-1380-	};
net/sched/sch_htb.c:1381:	err = htb_offload(dev, &offload_opt);
net/sched/sch_htb.c-1382-	if (err || offload_opt.qid >= dev->num_tx_queues)
--
net/sched/sch_htb.c=1388=htb_graft_helper(struct netdev_queue *dev_queue, struct Qdisc *new_q)
--
net/sched/sch_htb.c-1403-
net/sched/sch_htb.c:1404:static struct netdev_queue *htb_offload_get_queue(struct htb_class *cl)
net/sched/sch_htb.c-1405-{
--
net/sched/sch_htb.c-1414-
net/sched/sch_htb.c:1415:static void htb_offload_move_qdisc(struct Qdisc *sch, struct htb_class *cl_old,
net/sched/sch_htb.c-1416-				   struct htb_class *cl_new, bool destroying)
--
net/sched/sch_htb.c-1420-
net/sched/sch_htb.c:1421:	queue_old = htb_offload_get_queue(cl_old);
net/sched/sch_htb.c:1422:	queue_new = htb_offload_get_queue(cl_new);
net/sched/sch_htb.c-1423-
--
net/sched/sch_htb.c=1447=static int htb_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
--
net/sched/sch_htb.c-1458-	if (q->offload)
net/sched/sch_htb.c:1459:		dev_queue = htb_offload_get_queue(cl);
net/sched/sch_htb.c-1460-
--
net/sched/sch_htb.c=1544=static int htb_destroy_class_offload(struct Qdisc *sch, struct htb_class *cl,
--
net/sched/sch_htb.c-1557-	WARN_ON(!q);
net/sched/sch_htb.c:1558:	dev_queue = htb_offload_get_queue(cl);
net/sched/sch_htb.c-1559-	/* When destroying, caller qdisc_graft grafts the new qdisc and invokes
--
net/sched/sch_htb.c-1583-	};
net/sched/sch_htb.c:1584:	err = htb_offload(qdisc_dev(sch), &offload_opt);
net/sched/sch_htb.c-1585-
--
net/sched/sch_htb.c-1600-
net/sched/sch_htb.c:1601:		htb_offload_move_qdisc(sch, moved_cl, cl, destroying);
net/sched/sch_htb.c-1602-	}
--
net/sched/sch_htb.c=1618=static void htb_destroy(struct Qdisc *sch)
--
net/sched/sch_htb.c-1685-		};
net/sched/sch_htb.c:1686:		htb_offload(dev, &offload_opt);
net/sched/sch_htb.c-1687-	}
--
net/sched/sch_htb.c=1696=static int htb_delete(struct Qdisc *sch, unsigned long arg,
--
net/sched/sch_htb.c-1727-		if (q->offload)
net/sched/sch_htb.c:1728:			dev_queue = htb_offload_get_queue(cl);
net/sched/sch_htb.c-1729-
--
net/sched/sch_htb.c=1762=static int htb_change_class(struct Qdisc *sch, u32 classid,
--
net/sched/sch_htb.c-1905-			};
net/sched/sch_htb.c:1906:			err = htb_offload(dev, &offload_opt);
net/sched/sch_htb.c-1907-			if (err) {
--
net/sched/sch_htb.c-1913-		} else { /* First child. */
net/sched/sch_htb.c:1914:			dev_queue = htb_offload_get_queue(parent);
net/sched/sch_htb.c-1915-			old_q = htb_graft_helper(dev_queue, NULL);
--
net/sched/sch_htb.c-1927-			};
net/sched/sch_htb.c:1928:			err = htb_offload(dev, &offload_opt);
net/sched/sch_htb.c-1929-			if (err) {
--
net/sched/sch_htb.c-2009-			};
net/sched/sch_htb.c:2010:			err = htb_offload(dev, &offload_opt);
net/sched/sch_htb.c-2011-			if (err)
]

548/4 2026/08/15 19:03 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 186959
							output: 31
							thoughts: 616
						

Thoughts:
**A Deep Dive into the ERANGE Mystery in HTB Queue Discipline Setup**

Initially, I was certain that the `nla_parse_nested_deprecated` function, a common utility for parsing netlink attributes, wouldn't directly return `ERANGE`. My immediate thought process was to trace the origin of this error, particularly within the context of setting up the HTB (Hierarchical Token Bucket) queue discipline. I recalled that `ERANGE` corresponds to error code 34, and my intuition suggested it wasn't a typical output from parsing functions themselves, but rather from deeper logic.

My next step was to scrutinize `net/sched/sch_htb.c`, the core file for HTB implementation, looking for any explicit returns of `ERANGE`. I considered that the error might be originating from the `htb_offload` function, which is responsible for handling hardware offloading of queue discipline configurations. I knew that `htb_offload` interacts with the network device's `ndo_setup_tc` operation. If a device lacks support for HTB offloading, the expected return value would be `-EOPNOTSUPP`, not `ERANGE`. This reinforced my belief that `ERANGE` wasn't a direct consequence of the offload capability itself.

Then, I encountered the `strace` output, which provided the critical piece of information: the netlink message clearly indicated an `error=-ERANGE`. This was a pivotal moment. The error was undeniably being reported back through the netlink interface. The message was structured with a `nlmsg_type` of `NLMSG_ERROR`, and the subsequent payload contained the `-ERANGE` error code. This forced me to re-evaluate my initial assumptions.

The `strace` output also showed a nested message with a `nlmsg_type` of `0x28`, which I initially didn't immediately recognize but noted as potentially significant. The presence of this nested message, along with the `-ERANGE` error, strongly suggested that the error was occurring during the parsing or interpretation of the HTB configuration parameters themselves, rather than a simple lack of offload support. This led me back to a more detailed examination of `net/sched/sch_htb.c`, specifically looking for any code paths that might validate configuration parameters against their allowable ranges and return `ERANGE` if those boundaries were violated. My focus shifted from *where* the error was reported to *why* it was being reported, pinpointing the validation of the HTB's specific parameters as the most likely culprit.


549/4 2026/08/15 19:03 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:ERANGE PathPrefix:net/sched/sch_htb.c]

Results:
map[Output:]

550/4 2026/08/15 19:03 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 187604
							output: 31
							thoughts: 54
						

Thoughts:
**A Deep Dive into Potential Error Sources for `nla_get_u32`**

Alright, so I'm trying to get to the bottom of this `nla_get_u32` function's behavior, specifically why it might be failing. My initial suspicion was that `ERANGE` might be the culprit. This is a pretty common error code for issues related to value ranges, so it seemed like a logical starting point.

However, as I'm digging, I'm realizing that `ERANGE` might not be directly returned by `nla_get_u32` itself. I'm recalling that `tcf_block_get` is another function in the vicinity, and I'm questioning if *that's* the one potentially signaling `ERANGE`. A quick mental cross-reference suggests it's probably not the case, though. It's important to be precise here; I don't want to chase down the wrong path based on a vague recollection.

So, with those initial ideas tentatively set aside, my next logical step is to pivot my investigation. I need to look at how the value is actually being *generated* or *prepared* for `nla_get_u32`. This leads me directly to examining the `gen_new_estimator` function. This is where the data is likely being sourced or transformed, and if there's an out-of-range condition, it's highly probable that the problem originates within its logic before the value even gets to `nla_get_u32`. That's where I'll focus my attention next.


551/4 2026/08/15 19:03 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:ERANGE PathPrefix:net/core/gen_estimator.c]

Results:
map[Output:]

552/4 2026/08/15 19:03 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 187687
							output: 31
							thoughts: 19
						

Thoughts:
**My Thought Process Regarding `ERANGE` and `qdisc_get_rtab`**

So, my initial reaction upon seeing that `qdisc_get_rtab` can return `ERANGE` is one of surprise, bordering on a bit of confusion. My immediate thought is, "Wait a minute, `ERANGE`? That's typically associated with out-of-range values, isn't it? Usually, when you're dealing with numerical limits, like in `sprintf` or when converting strings to numbers, you hit `ERANGE` because the result is too large or too small to be represented."

And that's what makes it intriguing in this context. `qdisc_get_rtab`... I understand its purpose. It's about retrieving rate table information, likely for traffic control or queuing disciplines. It's supposed to be fetching configuration parameters, perhaps some sort of measurement or a pre-defined rate limit.

So, the question becomes: what *range* is being exceeded here? What kind of value within the context of a rate table could possibly be so out of bounds as to warrant an `ERANGE` error? It's not as if we're trying to store a gigabyte in a `short` integer. This isn't about direct numerical representation overflow in a simple arithmetic sense.

My mind immediately starts to branch out, considering the possibilities. Could it be that the *value* of the rate itself, when interpreted or perhaps scaled for some internal representation or calculation, exceeds a defined maximum threshold? For example, if there's an internal variable designed to hold a rate, and this rate, even though it's a valid *concept* of a rate (like 100 Gbps), is simply too large for the data type it's being stored in or processed with. This feels like a plausible interpretation – an overflow in the *magnitude* of the rate itself, not just a simple numerical type.

Alternatively, and this is where it gets more nuanced, could `ERANGE` be a catch-all for a *configuration inconsistency* that *manifests* as an out-of-range condition? Perhaps the rate table itself contains values that, while syntactically valid (e.g., positive numbers), are logically impossible or invalid within the specific context of the queuing discipline or the hardware it's interacting with. For instance, a rate that's so astronomically high that it would effectively disable any form of throttling, or a rate that's so infinitesimally small that it's practically zero and thus invalid for certain operations. The system might be interpreting these as "out of the acceptable range of operational parameters."

I'm also considering the possibility that `qdisc_get_rtab` might be performing some calculations or conversions internally. Maybe it's fetching a raw value, and then it's trying to convert it to a standardized format, or scale it based on some system-wide context, and *that* conversion or scaling results in an out-of-range value. It's not the raw input that's the problem, but the derived result.

And then there's the broader implication for debugging. If I see `ERANGE` here, it tells me the problem isn't likely a simple "file not found" or "permission denied." It points to a specific value-based issue within the rate configuration itself, or in how that configuration is being processed by the `qdisc_get_rtab` function. It suggests I need to look closely at the *values* being requested from the rate table, and how they're being interpreted and utilized by the queuing discipline. It’s a signal that the *magnitude* or *validity* of a rate parameter is the culprit, not its existence or accessibility. It’s a specific kind of invalidity, one related to bounds.


553/4 2026/08/15 19:03 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:ERANGE PathPrefix:net/sched/sch_api.c]

Results:
map[Output:]

554/4 2026/08/15 19:03 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 187735
							output: 31
							thoughts: 15
						

Thoughts:
**My Thought Process on Diving into `net/core/rtnetlink.c`**

Alright, my immediate instinct, given the problem at hand, is to scrutinize the core networking logic. Specifically, I'm zeroing in on `net/core/rtnetlink.c`. This is where the kernel handles the real-time netlink socket interface, the mechanism for dynamically configuring network devices, routes, and other network state information. My hypothesis is that the behavior I'm observing, or the issue I'm trying to resolve, likely originates from how the kernel is processing or generating netlink messages related to network object updates.

I'm expecting to find the handlers for various netlink families – particularly `RTMGRP_LINK` and `RTMGRP_IPV4_ROUTE` or `RTMGRP_IPV6_ROUTE`, depending on the layer of the stack we're dealing with. The code here will dictate how the kernel translates user-space requests into internal data structure modifications and, crucially, how it broadcasts these changes back to other interested parties, which is often where debugging network state synchronization becomes paramount. I'll be looking for the entry points for netlink operations, the parsing of message attributes, and the invocation of the appropriate netlink family handlers. If we're dealing with a specific race condition or a subtle interaction, the locking mechanisms and synchronization primitives within this file will be of extreme interest. I'll also be keeping an eye out for any specific error handling or logging that might shed light on unexpected behavior.


555/4 2026/08/15 19:04 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:ERANGE PathPrefix:net/core/rtnetlink.c]

Results:
map[Output:]

556/4 2026/08/15 19:04 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 187779
							output: 28
							thoughts: 12
						

Thoughts:
**My Internal Monologue as I Dive into `lib/nlattr.c`**

Alright, time to get my hands dirty. I'm going to start by examining the `lib/nlattr.c` file. This is where the core logic for handling Netlink attributes likely resides, and understanding it is crucial for me to grasp the intricacies of how these attributes are parsed, validated, and manipulated within the Netlink subsystem. I'm anticipating a good deal of bitwise operations, struct manipulation, and perhaps some memory management considerations. My goal is to build a comprehensive understanding of the attribute parsing and serialization mechanisms, and I expect this file to be the lynchpin of that effort. I'll be looking for functions that deal with attribute creation, appending, parsing, and deconstruction. I'll also pay close attention to any error handling or validation routines, as those are often where subtle bugs can hide and where the robustness of the implementation is truly tested. I need to ensure I'm not just seeing the code, but truly understanding the underlying design principles and potential edge cases.


557/4 2026/08/15 19:04 tool grepper
0m Args:
map[Expression:ERANGE PathPrefix:lib/nlattr.c]

Results:
map[Output:lib/nlattr.c=89=static int nla_validate_array(const struct nlattr *head, int len, int maxtype,
--
lib/nlattr.c-105-						"Array element too short");
lib/nlattr.c:106:			return -ERANGE;
lib/nlattr.c-107-		}
--
lib/nlattr.c=170=static int nla_validate_range_unsigned(const struct nla_policy *pt,
--
lib/nlattr.c-235-
lib/nlattr.c:236:		return -ERANGE;
lib/nlattr.c-237-	}
--
lib/nlattr.c=287=static int nla_validate_int_range_signed(const struct nla_policy *pt,
--
lib/nlattr.c-318-					"integer out of range");
lib/nlattr.c:319:		return -ERANGE;
lib/nlattr.c-320-	}
--
lib/nlattr.c=393=static int validate_nla(const struct nlattr *nla, int maxtype,
--
lib/nlattr.c-399-	int minlen = 0, attrlen = nla_len(nla), type = nla_type(nla);
lib/nlattr.c:400:	int err = -ERANGE;
lib/nlattr.c-401-
]

558/4 2026/08/15 19:04 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 188181
							output: 32
							thoughts: 59
						

Thoughts:
**My Thought Process Regarding `validate_nla` and `htb_policy`**

Okay, so the core of my current thinking revolves around the `validate_nla` function and how it behaves, specifically in relation to potential error conditions and its application within the `htb_policy` structure in `net/sched/sch_ αυτό.c`.

My initial realization was that `validate_nla` signals a problem – specifically, it returns `-ERANGE` – under two distinct circumstances. The first is quite straightforward: when the length of the attribute being validated falls below a predefined minimum length, `minlen`. This is a fundamental sanity check, ensuring we're not dealing with truncated or malformed attributes.

The second condition that triggers `validate_nla` to return `-ERANGE` is when the `nla_validate_range_unsigned` function itself fails. This tells me there's a deeper layer of validation happening, specifically concerning the *value* of an unsigned attribute. It implies that the attribute's data, even if it meets the minimum length requirement, is outside an acceptable numerical range. This could be a value that's too small, too large, or perhaps not adhering to some other implied numerical constraint managed by `nla_validate_range_unsigned`.

My subsequent thought then jumps to the practical application of this: the `htb_policy` in `net/sched/sch_ αυτό.c`. I'm immediately connecting the general behavior of `validate_nla` to how it's being employed in this specific context. This suggests that within the Hierarchical Token Bucket (HTB) traffic shaping implementation, the `htb_policy` is likely using `validate_nla` to enforce constraints on the attributes it receives. These attributes, I infer, are critical for configuring HTB parameters like rates, bursts, or other policy-specific settings. The `-ERANGE` return value from `validate_nla` would then be a signal that the user-provided configuration for HTB is invalid because one or more of its attributes either fail the length check or, more critically, have values that are outside the acceptable numerical bounds defined for that particular HTB policy parameter. This is a crucial detail for maintaining the integrity and predictability of the traffic shaping behavior.


559/4 2026/08/15 19:04 tool grepper
0m Args:
map[Expression:htb_policy PathPrefix:net/sched/sch_htb.c]

Results:
map[Output:net/sched/sch_htb.c=1002=static void htb_reset(struct Qdisc *sch)
--
net/sched/sch_htb.c-1025-
net/sched/sch_htb.c:1026:static const struct nla_policy htb_policy[TCA_HTB_MAX + 1] = {
net/sched/sch_htb.c-1027-	[TCA_HTB_PARMS]	= { .len = sizeof(struct tc_htb_opt) },
--
net/sched/sch_htb.c=1052=static int htb_init(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_htb.c-1073-
net/sched/sch_htb.c:1074:	err = nla_parse_nested_deprecated(tb, TCA_HTB_MAX, opt, htb_policy,
net/sched/sch_htb.c-1075-					  NULL);
--
net/sched/sch_htb.c=1762=static int htb_change_class(struct Qdisc *sch, u32 classid,
--
net/sched/sch_htb.c-1781-
net/sched/sch_htb.c:1782:	err = nla_parse_nested_deprecated(tb, TCA_HTB_MAX, opt, htb_policy,
net/sched/sch_htb.c-1783-					  extack);
]

560/4 2026/08/15 19:04 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 188640
							output: 38
							thoughts: 74
						

Thoughts:
**My Thought Process Regarding `htb_policy` and `tc_htb_opt`**

Ah, I'm examining the `htb_policy` structure, and I've noticed this particular field: `[TCA_HTB_PARMS] = { .len = sizeof(struct tc_htb_opt) }`. This immediately triggers a thought: "Wait a minute, if the actual length of the parameters provided doesn't precisely match the expected size, `sizeof(struct tc_htb_opt)`, this could be a problem." My immediate concern is that this mismatch might lead to an error return, specifically `-ERANGE`. Therefore, my next logical step, and indeed the critical piece of information I need to ascertain, is the exact size of `struct tc_htb_opt`. Understanding that size is paramount to ensuring the correct data is being passed and that we avoid potential range errors.


561/4 2026/08/15 19:04 tool grepper
0m Args:
map[Expression:struct tc_htb_opt PathPrefix:include/uapi/linux/pkt_sched.h]

Results:
map[Output:include/uapi/linux/pkt_sched.h=396=struct tc_choke_xstats {
--
include/uapi/linux/pkt_sched.h-408-
include/uapi/linux/pkt_sched.h:409:struct tc_htb_opt {
include/uapi/linux/pkt_sched.h-410-	struct tc_ratespec 	rate;
]

562/4 2026/08/15 19:04 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 188848
							output: 40
							thoughts: 12
						

Thoughts:
**My Deep Dive into `tc_htb_opt` Structure**

Ah, so I'm looking at `struct tc_htb_opt`. My immediate thought is to understand its purpose within the context of the traffic control (TC) subsystem, specifically the Hierarchical Token Bucket (HTB) classifier. I recognize this as a key data structure that will encapsulate all the configuration parameters for an HTB qdisc (queueing discipline) or class. My goal is to dissect its members and grasp how they collectively define the behavior of HTB.

I anticipate seeing fields related to the core HTB algorithm: rate limiting, buffer management, and the hierarchical relationships between classes. I'll be scrutinizing each member variable to understand its specific function. For instance, I'll be looking for fields that define the *rate* – likely in terms of bytes per second or bits per second – that a particular HTB class is allowed to consume. This would probably involve parameters like `rate` and `ceil` (ceiling rate).

Furthermore, I'll be paying close attention to how HTB manages its internal token buckets. This suggests that there might be fields related to the *bucket size* or *burst size*, which dictate how much data can be sent in a short burst even if the average rate is constrained. I'm also curious about how these parameters are applied – are they for the overall rate, or are they specific to how tokens are replenished?

Given that HTB is *hierarchical*, I'm actively searching for members that facilitate this structure. This might involve identifiers for parent and child classes, or perhaps some form of link or handle that establishes the tree-like relationship. The ability to define priorities and guarantees for different classes is fundamental to HTB, so I'll be looking for fields that enable this, possibly through methods of allocating bandwidth or specifying priority levels.

I also need to consider the practical aspects of using this structure. How are these options applied? Are there specific flags or commands associated with them? This structure is likely used in conjunction with netlink messages or ioctl calls to configure the TC subsystem. Therefore, understanding the layout and meaning of each field is crucial for correctly manipulating HTB configurations from userspace or within the kernel itself. I'll be thinking about potential defaults, the units of measurement for different parameters, and any dependencies between the fields. Ultimately, my aim is to build a mental model of how `struct tc_htb_opt` allows me to precisely control the intricate traffic shaping capabilities of the HTB algorithm.


563/4 2026/08/15 19:04 tool read-file
0m Args:
map[File:include/uapi/linux/pkt_sched.h FirstLine:409 LineCount:20]

Results:
map[Contents: 409:	struct tc_htb_opt {
 410:		struct tc_ratespec 	rate;
 411:		struct tc_ratespec 	ceil;
 412:		__u32	buffer;
 413:		__u32	cbuffer;
 414:		__u32	quantum;
 415:		__u32	level;		/* out only */
 416:		__u32	prio;
 417:	};
 418:	struct tc_htb_glob {
 419:		__u32 version;		/* to match HTB/TC */
 420:	    	__u32 rate2quantum;	/* bps->quantum divisor */
 421:	    	__u32 defcls;		/* default class number */
 422:		__u32 debug;		/* debug flags */
 423:	
 424:		/* stats */
 425:		__u32 direct_pkts; /* count of non shaped packets */
 426:	};
 427:	enum {
 428:		TCA_HTB_UNSPEC,
]

564/4 2026/08/15 19:04 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 189201
							output: 37
							thoughts: 9
						

Thoughts:
**My Internal Monologue on `struct tc_ratespec`**

Ah, `struct tc_ratespec`. I'm pondering this structure right now. My mind immediately goes to its fundamental purpose: it's clearly a way to represent *rate specifications* within the traffic control (tc) subsystem of the Linux kernel. That's the core idea, the bedrock upon which all further understanding is built.

So, what does a "rate specification" actually entail? My thought process dissects this into its constituent parts. We're talking about defining how data should flow, and that inherently means a few key parameters.

First and foremost, there's the *rate* itself. This is the bandwidth, the amount of data per unit of time. I'm thinking about how this is likely represented – probably in bits per second (bps) or a similar unit. The magnitude of this value is critical, and I'm anticipating that the structure will have a field dedicated to this fundamental numerical value.

But just specifying a rate isn't always enough. In real-world networking, traffic isn't a perfectly smooth stream. There are bursts. So, I'm considering the concept of *burst capacity*. This refers to how much data can be sent in a short, intense burst, even if the sustained average rate is lower. This is crucial for certain applications and protocols that benefit from occasional high throughput. Therefore, I'm expecting to find a field that quantifies this burst allowance.

Furthermore, the "spec" in `ratespec` suggests a level of detail. It's not just a raw number; it's a definition that can be used for configuration and enforcement. This implies that the structure might also contain metadata or flags that further refine the rate. Perhaps it indicates units, or maybe it's a way to signal different types of rate limiting (e.g., peak rate vs. average rate). I'm mentally cataloging these possibilities.

The context of the `tc` subsystem is also important. This structure isn't existing in a vacuum; it's part of a larger system designed for sophisticated network traffic management. Therefore, I'm assuming `tc_ratespec` is designed to be integrated seamlessly with other `tc` structures and functions, allowing for the definition of complex traffic classes and policies. It's a building block, a fundamental data element that other parts of the system will consume and utilize.

In essence, when I think about `struct tc_ratespec`, I'm seeing it as the kernel's standardized way of saying: "This is how fast data *should* be moving, and perhaps how much it's allowed to surge." It's about defining the boundaries and behavior of network traffic flow in a structured and programmable manner.


565/4 2026/08/15 19:04 tool grepper
0m Args:
map[Expression:struct tc_ratespec PathPrefix:include/uapi/linux/pkt_sched.h]

Results:
map[Output:include/uapi/linux/pkt_sched.h=84=enum tc_link_layer {
--
include/uapi/linux/pkt_sched.h-90-
include/uapi/linux/pkt_sched.h:91:struct tc_ratespec {
include/uapi/linux/pkt_sched.h-92-	unsigned char	cell_log;
--
include/uapi/linux/pkt_sched.h=183=struct tc_tbf_qopt {
include/uapi/linux/pkt_sched.h:184:	struct tc_ratespec rate;
include/uapi/linux/pkt_sched.h:185:	struct tc_ratespec peakrate;
include/uapi/linux/pkt_sched.h-186-	__u32		limit;
--
include/uapi/linux/pkt_sched.h=409=struct tc_htb_opt {
include/uapi/linux/pkt_sched.h:410:	struct tc_ratespec 	rate;
include/uapi/linux/pkt_sched.h:411:	struct tc_ratespec 	ceil;
include/uapi/linux/pkt_sched.h-412-	__u32	buffer;
]

566/4 2026/08/15 19:04 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 189551
							output: 39
							thoughts: 11
						

Thoughts:
**My Deep Dive into `tc_ratespec`**

Alright, let's get right to it. I'm looking at `struct tc_ratespec` and my mind is immediately trying to unpack what this thing is all about, especially in the context of network traffic control. My first thought is to understand its fundamental purpose. What data does it hold? Why is it structured this way?

I'm immediately drawn to its members. I see `rate` and `linklayer`. This tells me, at a high level, that this structure is designed to capture a specific rate of data transmission, but it's not just a raw number. The `linklayer` part suggests it's aware of the underlying network technology, which is crucial because bandwidth and latency aren't universal constants; they're heavily influenced by the physical and data link layers. So, it's not just about *how much* data, but *how* it's being sent.

Then there's `ceil` and `offdelay`. `ceil`, or ceiling, immediately brings to mind a maximum allowable rate. This is likely a cap, a hard limit that traffic can't exceed, which is a core concept in QoS (Quality of Service) for preventing network congestion and ensuring fairness. `offdelay` is more intriguing. What does "off delay" mean in this context? My initial thought is that it might relate to how quickly a transmission can be stopped or paused, perhaps related to latency in initiating or ceasing transmission. Or it could be about the delay in *reacting* to certain conditions, like a back-off period. I need to consider the implications of this for real-time applications or bursty traffic.

The presence of `filter_delay` also catches my eye. This suggests that there's a mechanism to measure or account for delays introduced by filtering processes. This is important because packet filtering, while necessary for security and policy enforcement, can add latency. Understanding this delay is key to accurate rate estimation and control.

Finally, I see `rate_bytes` and `rate_packets`. These are likely explicit representations of the rate in bytes per second and packets per second, respectively. This is a common practice to avoid recalculations and to provide clear, direct metrics for different levels of abstraction. It confirms that this structure is intended to be a comprehensive descriptor of a network traffic rate, accommodating both the volume of data and its packaging.

So, as I digest these fields, I'm forming a picture of `tc_ratespec` as a sophisticated descriptor for network traffic characteristics. It's not just a simple rate; it's a rate with context, encompassing limits, delays, and specific measurements, all tailored for the intricacies of traffic shaping and control. I'm thinking about how these individual pieces come together to define a traffic class, a policy, or a specific network behavior. It's clear this structure is a building block for complex QoS implementations.


567/4 2026/08/15 19:04 tool read-file
0m Args:
map[File:include/uapi/linux/pkt_sched.h FirstLine:91 LineCount:15]

Results:
map[Contents:  91:	struct tc_ratespec {
  92:		unsigned char	cell_log;
  93:		__u8		linklayer; /* lower 4 bits */
  94:		unsigned short	overhead;
  95:		short		cell_align;
  96:		unsigned short	mpu;
  97:		__u32		rate;
  98:	};
  99:	
 100:	#define TC_RTAB_SIZE	1024
 101:	
 102:	struct tc_sizespec {
 103:		unsigned char	cell_log;
 104:		unsigned char	size_log;
 105:		short		cell_align;
]

568/4 2026/08/15 19:04 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 189784
							output: 38
							thoughts: 664
						

Thoughts:
**My Thought Process Unpacking the `tc` Command and `struct tc_htb_opt` Discrepancy**

Initially, I'm performing some sanity checks on the expected sizes of network structures, specifically `struct tc_ratespec` and `struct tc_htb_opt`. My calculation for `tc_ratespec` comes out to 12 bytes (1 + 1 + 2 + 2 + 2 + 4). Then, building on that, I estimate `struct tc_htb_opt` to be 44 bytes (the 12 bytes of `tc_ratespec` plus several other fields). This is a fundamental step to ensure my understanding of the underlying data structures is sound.

However, a quick glance at the `strace` output immediately throws a wrench into my initial assumptions. The `nlmsg_len` is reported as 92 bytes. This tells me the total Netlink message size is 92. I then subtract the standard Netlink message header (16 bytes), leaving me with a payload of 76 bytes.

Next, I break down this payload. I know there's a `tcmsg` structure which typically takes up 20 bytes. So, 76 - 20 = 56 bytes remain for the Netlink attributes.

I then examine the Netlink attributes (nlattrs). The first one I identify is for `TCA_KIND`. The byte sequence `08 00 01 00 68 74 62 00` clearly indicates a length of 8 bytes, a type of 1 (which corresponds to `TCA_KIND`), and the data "htb\0". This matches my expectations.

The next nlattr I focus on is for `TCA_OPTIONS`. The sequence `30 00 02 00` signifies a length of 48 bytes and a type of 2, which is `TCA_OPTIONS`. This is where things start getting interesting, as 48 bytes is a significant chunk of the remaining payload.

Diving into the `TCA_OPTIONS` attribute, I find another nlattr: `2c 00 01 00`. This indicates a length of 44 bytes and a type of 1. Knowing the structure of `tc_htb_opt`, I immediately recognize that type 1 here corresponds to `TCA_HTB_PARMS`. And crucially, the length of 44 bytes is *exactly* the size I calculated for `struct tc_htb_opt` earlier.

This is the point of my confusion. The data I'm seeing in the Netlink message, specifically within the `TCA_OPTIONS` attribute, perfectly matches the expected size of `struct tc_htb_opt`. Yet, the operation is failing with an `-ERANGE` error. This suggests that even though the *size* is correct, there might be an issue with the *content* or how it's being interpreted within the kernel's `htb_change_class` function. My next step is to re-examine the logic within `htb_change_class` to pinpoint why a correctly sized structure might still be causing a range error.


569/4 2026/08/15 19:04 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1787 LineCount:40]

Results:
map[Contents:1787:		err = -EINVAL;
1788:		if (tb[TCA_HTB_PARMS] == NULL)
1789:			goto failure;
1790:	
1791:		parent = parentid == TC_H_ROOT ? NULL : htb_find(parentid, sch);
1792:	
1793:		hopt = nla_data(tb[TCA_HTB_PARMS]);
1794:		if (!hopt->rate.rate || !hopt->ceil.rate)
1795:			goto failure;
1796:	
1797:		if (q->offload) {
1798:			/* Options not supported by the offload. */
1799:			if (hopt->rate.overhead || hopt->ceil.overhead) {
1800:				NL_SET_ERR_MSG(extack, "HTB offload doesn't support the overhead parameter");
1801:				goto failure;
1802:			}
1803:			if (hopt->rate.mpu || hopt->ceil.mpu) {
1804:				NL_SET_ERR_MSG(extack, "HTB offload doesn't support the mpu parameter");
1805:				goto failure;
1806:			}
1807:		}
1808:	
1809:		/* Keeping backward compatible with rate_table based iproute2 tc */
1810:		if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
1811:			qdisc_put_rtab(qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB],
1812:						      NULL));
1813:	
1814:		if (hopt->ceil.linklayer == TC_LINKLAYER_UNAWARE)
1815:			qdisc_put_rtab(qdisc_get_rtab(&hopt->ceil, tb[TCA_HTB_CTAB],
1816:						      NULL));
1817:	
1818:		rate64 = nla_get_u64_default(tb[TCA_HTB_RATE64], 0);
1819:		ceil64 = nla_get_u64_default(tb[TCA_HTB_CEIL64], 0);
1820:	
1821:		if (!cl) {		/* new class */
1822:			struct net_device *dev = qdisc_dev(sch);
1823:			struct Qdisc *new_q, *old_q;
1824:			int prio;
1825:			struct {
1826:				struct nlattr		nla;
]

570/4 2026/08/15 19:04 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 191193
							output: 37
							thoughts: 66
						

Thoughts:
**A Moment of Revelation Regarding Rate Tables**

My current line of thinking has just encountered a rather significant realization, one that might necessitate a slight adjustment in how I've been approaching certain network scheduling operations. I was just contemplating the behavior of the `qdisc_get_rtab` function, and a question popped into my mind: can this function, in fact, return an error pointer?

Initially, I had a general understanding that it returns a `struct qdisc_rate_table *`, which is, of course, correct. However, the possibility of an error indication, beyond a simple null pointer, had not fully registered. This prompted me to specifically investigate the implementation of `qdisc_get_rtab` within the `net/sched/sch_api.c` file. It's precisely at this point in my thought process that the confirmation came: yes, it appears `qdisc_get_rtab` *can* indeed return an error pointer. This distinction is crucial, as it implies a more robust error handling mechanism than I might have previously assumed, and it's something I need to be acutely aware of for accurate and reliable network scheduler management.


571/4 2026/08/15 19:04 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:400 LineCount:40]

Results:
map[Contents: 400:		int cell_high = (high >> r->cell_log) - 1;
 401:	
 402:		/* rtab is too inaccurate at rates > 100Mbit/s */
 403:		if ((r->rate > (100000000/8)) || (rtab[0] == 0)) {
 404:			pr_debug("TC linklayer: Giving up ATM detection\n");
 405:			return TC_LINKLAYER_ETHERNET;
 406:		}
 407:	
 408:		if ((cell_high > cell_low) && (cell_high < 256)
 409:		    && (rtab[cell_low] == rtab[cell_high])) {
 410:			pr_debug("TC linklayer: Detected ATM, low(%d)=high(%d)=%u\n",
 411:				 cell_low, cell_high, rtab[cell_high]);
 412:			return TC_LINKLAYER_ATM;
 413:		}
 414:		return TC_LINKLAYER_ETHERNET;
 415:	}
 416:	
 417:	static struct qdisc_rate_table *qdisc_rtab_list;
 418:	
 419:	struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r,
 420:						struct nlattr *tab,
 421:						struct netlink_ext_ack *extack)
 422:	{
 423:		struct qdisc_rate_table *rtab;
 424:	
 425:		if (tab == NULL || r->rate == 0 ||
 426:		    r->cell_log == 0 || r->cell_log >= 32 ||
 427:		    nla_len(tab) != TC_RTAB_SIZE) {
 428:			NL_SET_ERR_MSG(extack, "Invalid rate table parameters for searching");
 429:			return NULL;
 430:		}
 431:	
 432:		for (rtab = qdisc_rtab_list; rtab; rtab = rtab->next) {
 433:			if (!memcmp(&rtab->rate, r, sizeof(struct tc_ratespec)) &&
 434:			    !memcmp(&rtab->data, nla_data(tab), TC_RTAB_SIZE)) {
 435:				rtab->refcnt++;
 436:				return rtab;
 437:			}
 438:		}
 439:	
]

572/4 2026/08/15 19:04 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 191989
							output: 38
							thoughts: 184
						

Thoughts:
**My Thought Process Unpacking `htb_offload` and `ERANGE`**

Okay, so I'm trying to get to the bottom of where this `-ERANGE` error could be originating when `htb_offload` is called. My initial understanding was that `qdisc_get_rtab` returning `NULL` on error might be the culprit. However, digging into `htb_change_class`, I see a crucial detail:

```c
if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
    qdisc_put_rtab(qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB],
                                  NULL));
```

What jumps out at me here is that `qdisc_put_rtab` is called directly on the return value of `qdisc_get_rtab`, *without any check whatsoever*. This means that even if `qdisc_get_rtab` *did* return an error code (and we know it returns `NULL` on error, not a negative error code like `-ERANGE`), `qdisc_put_rtab` wouldn't be designed to propagate that specific error. Therefore, the `-ERANGE` I'm seeing is *not* coming from this particular `qdisc_get_rtab` call within `htb_change_class`.

This forces me to re-examine `htb_offload` itself. If the error isn't bubbling up from that `qdisc_get_rtab` call, then the `-ERANGE` must be originating from somewhere *within* `htb_offload`'s logic, or perhaps from a function that `htb_offload` calls directly and that *does* return `-ERANGE`. My next step is to meticulously go through the implementation of `htb_offload` in `net/sched/sch_htb.c` to pinpoint the exact source of this error.


573/4 2026/08/15 19:04 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1047 LineCount:20]

Results:
map[Contents:1047:	static int htb_offload(struct net_device *dev, struct tc_htb_qopt_offload *opt)
1048:	{
1049:		return dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_HTB, opt);
1050:	}
1051:	
1052:	static int htb_init(struct Qdisc *sch, struct nlattr *opt,
1053:			    struct netlink_ext_ack *extack)
1054:	{
1055:		struct net_device *dev = qdisc_dev(sch);
1056:		struct tc_htb_qopt_offload offload_opt;
1057:		struct htb_sched *q = qdisc_priv(sch);
1058:		struct nlattr *tb[TCA_HTB_MAX + 1];
1059:		struct tc_htb_glob *gopt;
1060:		unsigned int ntx;
1061:		bool offload;
1062:		int err;
1063:	
1064:		qdisc_watchdog_init(&q->watchdog, sch);
1065:		INIT_WORK(&q->work, htb_work_func);
1066:	
]

574/4 2026/08/15 19:04 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 192552
							output: 37
							thoughts: 112
						

Thoughts:
**My Thought Process**

Okay, so I'm trying to trace down this issue, and I'm looking at the network interfaces being used. My initial thought is that it's probably one of the wireless personal area network interfaces, `wpan0` or `wpan1`, or perhaps the loopback interface `lo`, or maybe a virtual Ethernet pair `veth`.

Then, I pause and re-evaluate, looking at the reproducer's behavior more closely. It seems the reproducer is actually using either `lo` or `veth`, and potentially `wpan` as well, so my initial assumption about `wpan0`/`wpan1` being the *only* possibilities might be too narrow.

Next, I'm examining the `strace` output and I see `nlmsg_pid=5918`. This immediately tells me that a netlink socket is involved, and specifically that the process with PID 5918 is the one creating this socket and sending messages through it.

Now, I'm contemplating a specific error condition: if I'm seeing `ERANGE`. My first instinct is to wonder if this error is coming from `tcf_block_get`. But then I quickly dismiss that thought – it doesn't seem like the right context for that specific function call.

Instead, my focus shifts to `gen_new_estimator`. This feels like a more promising area to investigate the `ERANGE` error. I need to dig into what might be causing `gen_new_estimator` to return `ERANGE` in this scenario.


575/4 2026/08/15 19:05 tool read-file
0m Args:
map[File:net/core/gen_estimator.c FirstLine:140 LineCount:40]

Results:
map[Contents: 140:		struct net_rate_estimator *old, *est;
 141:		struct gnet_stats_basic_sync b;
 142:		int intvl_log;
 143:	
 144:		if (nla_len(opt) < sizeof(*parm))
 145:			return -EINVAL;
 146:	
 147:		/* allowed timer periods are :
 148:		 * -2 : 250ms,   -1 : 500ms,    0 : 1 sec
 149:		 *  1 : 2 sec,    2 : 4 sec,    3 : 8 sec
 150:		 */
 151:		if (parm->interval < -2 || parm->interval > 3)
 152:			return -EINVAL;
 153:	
 154:		if (parm->ewma_log == 0 || parm->ewma_log >= 31)
 155:			return -EINVAL;
 156:	
 157:		est = kzalloc_obj(*est);
 158:		if (!est)
 159:			return -ENOBUFS;
 160:	
 161:		seqcount_init(&est->seq);
 162:		intvl_log = parm->interval + 2;
 163:		est->bstats = bstats;
 164:		est->stats_lock = lock;
 165:		est->running  = running;
 166:		est->ewma_log = parm->ewma_log;
 167:		est->intvl_log = intvl_log;
 168:		est->cpu_bstats = cpu_bstats;
 169:	
 170:		if (lock)
 171:			local_bh_disable();
 172:		est_fetch_counters(est, &b);
 173:		if (lock)
 174:			local_bh_enable();
 175:		est->last_bytes = u64_stats_read(&b.bytes);
 176:		est->last_packets = u64_stats_read(&b.packets);
 177:	
 178:		if (lock)
 179:			spin_lock_bh(lock);
]

576/4 2026/08/15 19:05 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 193316
							output: 39
							thoughts: 521
						

Thoughts:
**My Thought Process on the `tc` Command Failure**

Okay, so I'm digging into this `tc` command failure, and it's leading me down a rabbit hole of nested functions and length checks. I'm looking for the root cause, and initially, I wasn't seeing an obvious `ERANGE` error anywhere.

My first instinct was to trace the call stack for how nested attributes are handled. I noticed `nla_parse_nested_deprecated` as a potential entry point for this kind of parsing. Following that down, I saw it calls `nla_parse_deprecated`, which in turn calls `__nla_parse`. The critical function here seems to be `validate_nla`. This function is designed to return `-ERANGE` if the provided attribute length is less than a expected minimum, which is defined by `pt->len` (the expected length of the attribute's data).

Now, I'm looking at the `htb_policy` specifically for `TCA_HTB_PARMS`. The policy states that the expected length for this attribute, `pt->len`, should be `sizeof(struct tc_htb_opt)`, which is 44 bytes. This means that if a user passes a `TCA_HTB_PARMS` attribute with a data length less than 44 bytes, `validate_nla` *should* return `-ERANGE`.

Here's where things get a bit confusing. I'm looking at the `strace` output, and it clearly shows the `TCA_HTB_PARMS` attribute having a length of 44. I see `2c 00 01 00`. The first two bytes, `2c 00`, represent the total length of the Netlink attribute, which in hexadecimal is 44.

But then I remembered how `nla_len` is calculated: it's `nla->nla_len - NLA_HDRLEN`. `NLA_HDRLEN` is a constant, 4 bytes. So, if the total `nla->nla_len` is 44, then `nla_len(nla)` (the actual data payload length) would be `44 - 4 = 40` bytes.

This is the crucial point! The policy expects 44 bytes (`sizeof(struct tc_htb_opt)`), but the actual payload length, as calculated by `nla_len`, is only 40 bytes. Since 40 is less than 44, `validate_nla` is indeed returning `-ERANGE`.

So, the user payload *does* have `2c 00` which is 44 bytes for the *entire* Netlink attribute. But the actual *data* within that attribute, after accounting for the Netlink header, is only 40 bytes. This 40-byte payload is then compared to the expected 44-byte size of `struct tc_htb_opt`. The mismatch causes `validate_nla` to fail with `-ERANGE`.

Because of this `validate_nla` failure, the `htb_change_class` function fails, returning `-ERANGE`. This prevents the HTB class from being created.

Following that, I see the next operation is an attempt to create an `sfq` qdisc with a parent specified as `1:1`. My initial thought was, "If the class `1:1` failed to be created, then `qdisc_lookup` for that parent should fail." However, upon further reflection, the parent here is a *class*, not a qdisc. The `tc_ctl_tclass` function is responsible for creating this class. If it fails (which it did, returning `-ERANGE`), then the subsequent `tc_ctl_qdisc` call, which tries to create the `sfq` qdisc using that non-existent parent, would indeed fail. It's the `-ERANGE` from the class creation that's cascading and causing the whole operation to go awry.


577/4 2026/08/15 19:05 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:1650 LineCount:100]

Results:
map[Contents:1650:					}
1651:					if (q->flags & TCQ_F_INGRESS) {
1652:						NL_SET_ERR_MSG(extack,
1653:							       "Cannot regraft ingress or clsact Qdiscs");
1654:						return -EINVAL;
1655:					}
1656:					if (q == p ||
1657:					    (p && check_loop(q, p, 0))) {
1658:						NL_SET_ERR_MSG(extack, "Qdisc parent/child loop detected");
1659:						return -ELOOP;
1660:					}
1661:					if (clid == TC_H_INGRESS) {
1662:						NL_SET_ERR_MSG(extack, "Ingress cannot graft directly");
1663:						return -EINVAL;
1664:					}
1665:					qdisc_refcount_inc(q);
1666:					goto graft;
1667:				} else {
1668:					if (!q)
1669:						goto create_n_graft;
1670:	
1671:					/* This magic test requires explanation.
1672:					 *
1673:					 *   We know, that some child q is already
1674:					 *   attached to this parent and have choice:
1675:					 *   1) change it or 2) create/graft new one.
1676:					 *   If the requested qdisc kind is different
1677:					 *   than the existing one, then we choose graft.
1678:					 *   If they are the same then this is "change"
1679:					 *   operation - just let it fallthrough..
1680:					 *
1681:					 *   1. We are allowed to create/graft only
1682:					 *   if the request is explicitly stating
1683:					 *   "please create if it doesn't exist".
1684:					 *
1685:					 *   2. If the request is to exclusive create
1686:					 *   then the qdisc tcm_handle is not expected
1687:					 *   to exist, so that we choose create/graft too.
1688:					 *
1689:					 *   3. The last case is when no flags are set.
1690:					 *   This will happen when for example tc
1691:					 *   utility issues a "change" command.
1692:					 *   Alas, it is sort of hole in API, we
1693:					 *   cannot decide what to do unambiguously.
1694:					 *   For now we select create/graft.
1695:					 */
1696:					if (tca[TCA_KIND] &&
1697:					    nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1698:						if (req_create_or_replace(n) ||
1699:						    req_create_exclusive(n))
1700:							goto create_n_graft;
1701:						else if (req_change(n))
1702:							goto create_n_graft2;
1703:					}
1704:				}
1705:			}
1706:		} else {
1707:			if (!tcm->tcm_handle) {
1708:				NL_SET_ERR_MSG(extack, "Handle cannot be zero");
1709:				return -EINVAL;
1710:			}
1711:			q = qdisc_lookup(dev, tcm->tcm_handle);
1712:		}
1713:	
1714:		/* Change qdisc parameters */
1715:		if (!q) {
1716:			NL_SET_ERR_MSG(extack, "Specified qdisc not found");
1717:			return -ENOENT;
1718:		}
1719:		if (n->nlmsg_flags & NLM_F_EXCL) {
1720:			NL_SET_ERR_MSG(extack, "Exclusivity flag on, cannot modify");
1721:			return -EEXIST;
1722:		}
1723:		if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1724:			NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
1725:			return -EINVAL;
1726:		}
1727:		err = qdisc_change(q, tca, extack);
1728:		if (err == 0)
1729:			qdisc_notify(sock_net(skb->sk), skb, n, clid, NULL, q, extack);
1730:		return err;
1731:	
1732:	create_n_graft:
1733:		if (!(n->nlmsg_flags & NLM_F_CREATE)) {
1734:			NL_SET_ERR_MSG(extack, "Qdisc not found. To create specify NLM_F_CREATE flag");
1735:			return -ENOENT;
1736:		}
1737:	create_n_graft2:
1738:		if (clid == TC_H_INGRESS) {
1739:			if (dev_ingress_queue(dev)) {
1740:				q = qdisc_create(dev, dev_ingress_queue(dev),
1741:						 tcm->tcm_parent, tcm->tcm_parent,
1742:						 tca, &err, extack);
1743:			} else {
1744:				NL_SET_ERR_MSG(extack, "Cannot find ingress queue for specified device");
1745:				err = -ENOENT;
1746:			}
1747:		} else {
1748:			struct netdev_queue *dev_queue;
1749:	
]

578/4 2026/08/15 19:05 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 195475
							output: 39
							thoughts: 44
						

Thoughts:
**My Thought Process Regarding Potential Class Creation Failure and its Impact**

Right, so I'm considering the sequence of operations, and a thought just occurred to me: if the initial class creation step were to fail, that would have a direct and immediate consequence on the subsequent `tc_ctl_qdisc` command. Specifically, if the parent class that `tc_ctl_qdisc` is supposed to interact with hasn't actually been created successfully, then `tc_ctl_qdisc` would logically fail. And given the context, the most probable error code in this scenario would be `-ENOENT`, signifying that the "No such file or directory" – or in this case, the "No such class" – condition is met because the prerequisite class simply doesn't exist. Therefore, my next step is to scrutinize the `tc_ctl_qdisc` function itself to confirm how it handles such a parent-not-found situation.


579/4 2026/08/15 19:05 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:1550 LineCount:100]

Results:
map[Contents:1550:		err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,
1551:					     rtm_tca_policy, extack);
1552:		if (err < 0)
1553:			return err;
1554:	
1555:		dev = __dev_get_by_index(net, tcm->tcm_ifindex);
1556:		if (!dev)
1557:			return -ENODEV;
1558:	
1559:		netdev_lock_ops(dev);
1560:		err = __tc_get_qdisc(skb, n, extack, dev, tca, tcm);
1561:		netdev_unlock_ops(dev);
1562:	
1563:		return err;
1564:	}
1565:	
1566:	static bool req_create_or_replace(struct nlmsghdr *n)
1567:	{
1568:		return (n->nlmsg_flags & NLM_F_CREATE &&
1569:			n->nlmsg_flags & NLM_F_REPLACE);
1570:	}
1571:	
1572:	static bool req_create_exclusive(struct nlmsghdr *n)
1573:	{
1574:		return (n->nlmsg_flags & NLM_F_CREATE &&
1575:			n->nlmsg_flags & NLM_F_EXCL);
1576:	}
1577:	
1578:	static bool req_change(struct nlmsghdr *n)
1579:	{
1580:		return (!(n->nlmsg_flags & NLM_F_CREATE) &&
1581:			!(n->nlmsg_flags & NLM_F_REPLACE) &&
1582:			!(n->nlmsg_flags & NLM_F_EXCL));
1583:	}
1584:	
1585:	static int __tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1586:				     struct netlink_ext_ack *extack,
1587:				     struct net_device *dev,
1588:				     struct nlattr *tca[TCA_MAX + 1],
1589:				     struct tcmsg *tcm)
1590:	{
1591:		struct Qdisc *q = NULL;
1592:		struct Qdisc *p = NULL;
1593:		u32 clid;
1594:		int err;
1595:	
1596:		clid = tcm->tcm_parent;
1597:	
1598:		if (clid) {
1599:			if (clid != TC_H_ROOT) {
1600:				if (clid != TC_H_INGRESS) {
1601:					p = qdisc_lookup(dev, TC_H_MAJ(clid));
1602:					if (!p) {
1603:						NL_SET_ERR_MSG(extack, "Failed to find specified qdisc");
1604:						return -ENOENT;
1605:					}
1606:					if (p->flags & TCQ_F_INGRESS) {
1607:						NL_SET_ERR_MSG(extack,
1608:							       "Cannot add children to ingress/clsact qdisc");
1609:						return -EOPNOTSUPP;
1610:					}
1611:					q = qdisc_leaf(p, clid, extack);
1612:					if (IS_ERR(q))
1613:						return PTR_ERR(q);
1614:				} else if (dev_ingress_queue_create(dev)) {
1615:					q = rtnl_dereference(dev_ingress_queue(dev)->qdisc_sleeping);
1616:				}
1617:			} else {
1618:				q = rtnl_dereference(dev->qdisc);
1619:			}
1620:	
1621:			/* It may be default qdisc, ignore it */
1622:			if (q && q->handle == 0)
1623:				q = NULL;
1624:	
1625:			if (!q || !tcm->tcm_handle || q->handle != tcm->tcm_handle) {
1626:				if (tcm->tcm_handle) {
1627:					if (q && !(n->nlmsg_flags & NLM_F_REPLACE)) {
1628:						NL_SET_ERR_MSG(extack, "NLM_F_REPLACE needed to override");
1629:						return -EEXIST;
1630:					}
1631:					if (TC_H_MIN(tcm->tcm_handle)) {
1632:						NL_SET_ERR_MSG(extack, "Invalid minor handle");
1633:						return -EINVAL;
1634:					}
1635:					q = qdisc_lookup(dev, tcm->tcm_handle);
1636:					if (!q)
1637:						goto create_n_graft;
1638:					if (q->parent != tcm->tcm_parent) {
1639:						NL_SET_ERR_MSG(extack, "Cannot move an existing qdisc to a different parent");
1640:						return -EINVAL;
1641:					}
1642:					if (n->nlmsg_flags & NLM_F_EXCL) {
1643:						NL_SET_ERR_MSG(extack, "Exclusivity flag on, cannot override");
1644:						return -EEXIST;
1645:					}
1646:					if (tca[TCA_KIND] &&
1647:					    nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1648:						NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
1649:						return -EINVAL;
]

580/4 2026/08/15 19:05 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 197192
							output: 38
							thoughts: 61
						

Thoughts:
**A Deep Dive into `qdisc_leaf` and its Implications**

My thought process, as I was analyzing this code snippet, quickly homed in on a critical conditional path. I'm encountering a situation where `p`, which represents the parent qdisc, has indeed been found. This immediately triggers a call to `qdisc_leaf(p, clid, extack)`.

Now, my next immediate concern is the behavior of `qdisc_leaf` itself, particularly in the scenario where the class identifier (`clid`) doesn't correspond to an existing class within that parent qdisc. The documentation (or my prior knowledge of the kernel's qdisc subsystem) strongly suggests that in such a case, `qdisc_leaf` will return `-ENOENT`. This is a standard error code indicating "No such file or directory" in this context, effectively meaning the requested class simply doesn't exist.

Therefore, my immediate next step is to meticulously examine the implementation of `qdisc_leaf`. I need to understand precisely *how* it iterates or searches for the class within the parent qdisc, and under what conditions it determines that the class is not present, ultimately leading to the return of `-ENOENT`. This will be crucial for understanding the subsequent error handling or alternative execution paths in the code I'm currently reviewing.


581/4 2026/08/15 19:05 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:1460 LineCount:40]

Results:
map[Contents:1460:		[TCA_STAB]		= { .type = NLA_NESTED },
1461:		[TCA_DUMP_INVISIBLE]	= { .type = NLA_FLAG },
1462:		[TCA_CHAIN]		= { .type = NLA_U32 },
1463:		[TCA_INGRESS_BLOCK]	= { .type = NLA_U32 },
1464:		[TCA_EGRESS_BLOCK]	= { .type = NLA_U32 },
1465:	};
1466:	
1467:	/*
1468:	 * Delete/get qdisc.
1469:	 */
1470:	
1471:	static int __tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1472:				  struct netlink_ext_ack *extack,
1473:				  struct net_device *dev,
1474:				  struct nlattr *tca[TCA_MAX + 1],
1475:				  struct tcmsg *tcm)
1476:	{
1477:		struct net *net = sock_net(skb->sk);
1478:		struct Qdisc *q = NULL;
1479:		struct Qdisc *p = NULL;
1480:		u32 clid;
1481:		int err;
1482:	
1483:		clid = tcm->tcm_parent;
1484:		if (clid) {
1485:			if (clid != TC_H_ROOT) {
1486:				if (TC_H_MAJ(clid) != TC_H_MAJ(TC_H_INGRESS)) {
1487:					p = qdisc_lookup(dev, TC_H_MAJ(clid));
1488:					if (!p) {
1489:						NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified classid");
1490:						return -ENOENT;
1491:					}
1492:					q = qdisc_leaf(p, clid, extack);
1493:				} else if (dev_ingress_queue(dev)) {
1494:					q = rtnl_dereference(dev_ingress_queue(dev)->qdisc_sleeping);
1495:				}
1496:			} else {
1497:				q = rtnl_dereference(dev->qdisc);
1498:			}
1499:			if (!q) {
]

582/4 2026/08/15 19:05 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 197966
							output: 34
							thoughts: 861
						

Thoughts:
**The Root of the Reproducer's Failure: A Size Mismatch in HTB Class Creation**

I've been digging into this reproducer, trying to understand why it's failing to trigger the bug I'm interested in. Initially, I noticed that `qdisc_leaf` was returning `ERR_PTR(-ENOENT)`, indicating that the target class wasn't found. This led me to believe that the `sfq` qdisc creation was failing. Further investigation revealed that the underlying issue was with the creation of an `htb` class, which was failing with `-ERANGE`.

My immediate thought was a size discrepancy. The reproducer was attempting to create an `htb` class with a payload of 40 bytes, but the kernel seemed to be expecting 44 bytes. I started scrutinizing the `struct tc_htb_opt` definition on a 64-bit system. I calculated its size: two `struct tc_ratespec` (each 12 bytes), `buffer`, `cbuffer`, `quantum`, `level`, and `prio` (each 4 bytes). Summing these up, I consistently arrived at 44 bytes. I double-checked for padding within `tc_ratespec` and `tc_htb_opt`, but found none.

This discrepancy left me puzzled. If the structure is indeed 44 bytes, why would syzkaller, which generated this reproducer, provide only 40 bytes? My hypothesis shifted: perhaps the reproducer was generated for an older kernel version where `struct tc_htb_opt` was a different size. I specifically considered if the `prio` field, which is the last field in the structure, might have been added at some point, thus increasing the size. To confirm this, I planned to consult the `git log` history, searching for commits that introduced or modified the `prio` field in the relevant header file, `include/uapi/linux/pkt_sched.h`. This size mismatch is crucial because the failure to create the `htb` class prevents the `sfq` qdisc from being created, and without the `sfq` qdisc and its running timer, the bug I'm investigating simply won't be triggered.


583/4 2026/08/15 19:05 tool grepper
0m Args:
map[Expression:prio PathPrefix:include/uapi/linux/pkt_sched.h]

Results:
map[Output:include/uapi/linux/pkt_sched.h-7-
include/uapi/linux/pkt_sched.h:8:/* Logical priority bands not depending on specific packet scheduler.
include/uapi/linux/pkt_sched.h-9-   Every scheduler will map them to real traffic classes, if it has
--
include/uapi/linux/pkt_sched.h=124=struct tc_fifo_qopt {
--
include/uapi/linux/pkt_sched.h-131- * Priorities go from zero to (SKBPRIO_MAX_PRIORITY - 1).
include/uapi/linux/pkt_sched.h:132: * SKBPRIO_MAX_PRIORITY should be at least 64 in order for skbprio to be able
include/uapi/linux/pkt_sched.h-133- * to map one to one the DS field of IPV4 and IPV6 headers.
--
include/uapi/linux/pkt_sched.h-138-
include/uapi/linux/pkt_sched.h:139:struct tc_skbprio_qopt {
include/uapi/linux/pkt_sched.h-140-	__u32	limit;		/* Queue length in packets. */
--
include/uapi/linux/pkt_sched.h-147-
include/uapi/linux/pkt_sched.h:148:struct tc_prio_qopt {
include/uapi/linux/pkt_sched.h-149-	int	bands;			/* Number of bands */
include/uapi/linux/pkt_sched.h:150:	__u8	priomap[TC_PRIO_MAX+1];	/* Map: logical priority -> PRIO band */
include/uapi/linux/pkt_sched.h-151-};
--
include/uapi/linux/pkt_sched.h=346=struct tc_gred_qopt {
--
include/uapi/linux/pkt_sched.h-359-	__u8		Scell_log;    /* cell size for idle damping */
include/uapi/linux/pkt_sched.h:360:	__u8		prio;         /* prio of this VQ */
include/uapi/linux/pkt_sched.h-361-	__u32		packets;
--
include/uapi/linux/pkt_sched.h=409=struct tc_htb_opt {
--
include/uapi/linux/pkt_sched.h-415-	__u32	level;		/* out only */
include/uapi/linux/pkt_sched.h:416:	__u32	prio;
include/uapi/linux/pkt_sched.h-417-};
--
include/uapi/linux/pkt_sched.h=624=enum {
--
include/uapi/linux/pkt_sched.h-628-
include/uapi/linux/pkt_sched.h:629:struct tc_mqprio_qopt {
include/uapi/linux/pkt_sched.h-630-	__u8	num_tc;
include/uapi/linux/pkt_sched.h:631:	__u8	prio_tc_map[TC_QOPT_BITMASK + 1];
include/uapi/linux/pkt_sched.h-632-	__u8	hw;
--
include/uapi/linux/pkt_sched.h=812=enum {
--
include/uapi/linux/pkt_sched.h-844-
include/uapi/linux/pkt_sched.h:845:	TCA_FQ_PRIOMAP,		/* prio2band */
include/uapi/linux/pkt_sched.h-846-
--
include/uapi/linux/pkt_sched.h=859=struct tc_fq_qd_stats {
include/uapi/linux/pkt_sched.h-860-	__u64	gc_flows;
include/uapi/linux/pkt_sched.h:861:	__u64	highprio_packets;	/* obsolete */
include/uapi/linux/pkt_sched.h-862-	__u64	tcp_retrans;		/* obsolete */
--
include/uapi/linux/pkt_sched.h=1188=enum {
include/uapi/linux/pkt_sched.h-1189-	TCA_TAPRIO_ATTR_UNSPEC,
include/uapi/linux/pkt_sched.h:1190:	TCA_TAPRIO_ATTR_PRIOMAP, /* struct tc_mqprio_qopt */
include/uapi/linux/pkt_sched.h-1191-	TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST, /* nested of entry */
]

584/4 2026/08/15 19:05 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 200054
							output: 34
							thoughts: 1040
						

Thoughts:
**My Thought Process on the `tc_htb_opt` Discrepancy**

Initially, my focus was on the `prio` field within `struct tc_htb_opt`, wondering if its presence or absence was the core issue. However, a quick look revealed that its historical introduction wasn't the immediate concern. The critical observation, as evidenced by the `strace` output, was a mismatch in the expected and actual payload size.

The reproducer was sending a payload that, after careful deconstruction, amounted to 40 bytes. I meticulously parsed the byte stream, identifying each field: `tcm_family` (and padding), `tcm_ifindex`, `tcm_handle`, `tcm_parent`, `tcm_info`, and then the Netlink attributes (`TCA_KIND`, `TCA_OPTIONS`).

Within `TCA_OPTIONS`, I saw `TCA_HTB_PARMS`, signaled by `2c 00 01 00`. This `nla_len` value of 44 (hex `2c`) indicated that the *total* size of the `TCA_HTB_PARMS` attribute, including its 4-byte header, should be 44 bytes. This means the *payload* of this attribute should be 40 bytes.

I then proceeded to sum up the sizes of the individual fields within what I expected to be the HTB parameters: `rate`, `ceil`, `buffer`, `cbuffer`, and `quantum`. This sum came out to exactly 40 bytes (12 + 12 + 4 + 4 + 4 = 40).

Here's where the critical realization hit: the `sizeof(struct tc_htb_opt)` in the kernel is 44 bytes. The kernel was expecting 44 bytes of data for the HTB parameters, but the reproducer was only providing 40.

The discrepancy of 4 bytes precisely aligned with the size of the `prio` field. This strongly suggested that the reproducer, by sending only 40 bytes of data where 44 were expected, was indeed omitting the `prio` field from the `struct tc_htb_opt` being sent. This led me back to my initial thought: I need to determine when `prio` was introduced into that structure, as its absence is the direct cause of the size mismatch.


585/4 2026/08/15 19:05 tool grepper
0m Args:
map[Expression:prio PathPrefix:include/uapi/linux/pkt_sched.h]

Results:
map[Output:include/uapi/linux/pkt_sched.h-7-
include/uapi/linux/pkt_sched.h:8:/* Logical priority bands not depending on specific packet scheduler.
include/uapi/linux/pkt_sched.h-9-   Every scheduler will map them to real traffic classes, if it has
--
include/uapi/linux/pkt_sched.h=124=struct tc_fifo_qopt {
--
include/uapi/linux/pkt_sched.h-131- * Priorities go from zero to (SKBPRIO_MAX_PRIORITY - 1).
include/uapi/linux/pkt_sched.h:132: * SKBPRIO_MAX_PRIORITY should be at least 64 in order for skbprio to be able
include/uapi/linux/pkt_sched.h-133- * to map one to one the DS field of IPV4 and IPV6 headers.
--
include/uapi/linux/pkt_sched.h-138-
include/uapi/linux/pkt_sched.h:139:struct tc_skbprio_qopt {
include/uapi/linux/pkt_sched.h-140-	__u32	limit;		/* Queue length in packets. */
--
include/uapi/linux/pkt_sched.h-147-
include/uapi/linux/pkt_sched.h:148:struct tc_prio_qopt {
include/uapi/linux/pkt_sched.h-149-	int	bands;			/* Number of bands */
include/uapi/linux/pkt_sched.h:150:	__u8	priomap[TC_PRIO_MAX+1];	/* Map: logical priority -> PRIO band */
include/uapi/linux/pkt_sched.h-151-};
--
include/uapi/linux/pkt_sched.h=346=struct tc_gred_qopt {
--
include/uapi/linux/pkt_sched.h-359-	__u8		Scell_log;    /* cell size for idle damping */
include/uapi/linux/pkt_sched.h:360:	__u8		prio;         /* prio of this VQ */
include/uapi/linux/pkt_sched.h-361-	__u32		packets;
--
include/uapi/linux/pkt_sched.h=409=struct tc_htb_opt {
--
include/uapi/linux/pkt_sched.h-415-	__u32	level;		/* out only */
include/uapi/linux/pkt_sched.h:416:	__u32	prio;
include/uapi/linux/pkt_sched.h-417-};
--
include/uapi/linux/pkt_sched.h=624=enum {
--
include/uapi/linux/pkt_sched.h-628-
include/uapi/linux/pkt_sched.h:629:struct tc_mqprio_qopt {
include/uapi/linux/pkt_sched.h-630-	__u8	num_tc;
include/uapi/linux/pkt_sched.h:631:	__u8	prio_tc_map[TC_QOPT_BITMASK + 1];
include/uapi/linux/pkt_sched.h-632-	__u8	hw;
--
include/uapi/linux/pkt_sched.h=812=enum {
--
include/uapi/linux/pkt_sched.h-844-
include/uapi/linux/pkt_sched.h:845:	TCA_FQ_PRIOMAP,		/* prio2band */
include/uapi/linux/pkt_sched.h-846-
--
include/uapi/linux/pkt_sched.h=859=struct tc_fq_qd_stats {
include/uapi/linux/pkt_sched.h-860-	__u64	gc_flows;
include/uapi/linux/pkt_sched.h:861:	__u64	highprio_packets;	/* obsolete */
include/uapi/linux/pkt_sched.h-862-	__u64	tcp_retrans;		/* obsolete */
--
include/uapi/linux/pkt_sched.h=1188=enum {
include/uapi/linux/pkt_sched.h-1189-	TCA_TAPRIO_ATTR_UNSPEC,
include/uapi/linux/pkt_sched.h:1190:	TCA_TAPRIO_ATTR_PRIOMAP, /* struct tc_mqprio_qopt */
include/uapi/linux/pkt_sched.h-1191-	TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST, /* nested of entry */
]

586/4 2026/08/15 19:05 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 202321
							output: 33
							thoughts: 568
						

Thoughts:
**The Puzzle of the Missing Parent and the `-ERANGE` Error**

My investigation into this bug started with a peculiar observation: the reproducer was sending 40 bytes, which seemed odd given the context of `struct tc_htb_opt`. This led me to suspect that syzkaller's definition of `tc_htb_opt` might be incomplete, specifically lacking the `prio` field. Unfortunately, I can't directly access syzkaller's internal descriptions to confirm this.

However, the immediate symptom was a persistent `-ERANGE` error, which was preventing the actual bug from being triggered. The bug itself, a `WARNING in qdisc_tree_reduce_backlog`, specifically `WARN_ON_ONCE(parentid != TC_H_ROOT);` when `sch == NULL`, pointed to a scenario where `qdisc_tree_reduce_backlog` was being called on a qdisc, but its parent qdisc couldn't be found. This lookup happens via `qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid))`. A missing parent would naturally lead to this warning.

My next question was: how could a parent qdisc disappear? The logical expectation is that when a qdisc is deleted, it should also take care of its children. I recalled that the `sfq` qdisc has a timer, `sfq_perturbation`, which eventually calls `sfq_rehash` and then `qdisc_tree_reduce_backlog`. If the `sfq` qdisc were deleted, its timer should be deactivated. Indeed, `sfq_destroy` explicitly calls `del_timer_sync(&q->perturb_timer)`, ensuring the timer won't fire after destruction.

So, the problem must lie in a different scenario: what if the parent qdisc is deleted *without* properly cleaning up its child, specifically the `sfq` qdisc? I considered the case where the parent is an `htb` class. When an `htb` class is deleted, it's supposed to destroy its leaf qdisc. The `htb_delete` function does this by calling `qdisc_put(cl->leaf.q)`. `qdisc_put` manages the reference count, and if it drops to zero, the qdisc is destroyed.

This led me to a crucial thought: could the `sfq` qdisc still be referenced even if its parent `htb` class has been deleted? What if the `sfq` qdisc was in the middle of its `sfq_perturbation` timer callback? However, I remembered that `sfq_perturbation` operates under an `rcu_read_lock()`, which usually implies operations that can tolerate RCU grace periods.

This brought me to a more fundamental question: how is `qdisc_destroy` actually invoked? Is it an RCU-managed operation, or is it synchronous? My initial understanding was that `qdisc_destroy` is called synchronously, but it might still need to be careful about RCU. This is where I decided to dive deeper, specifically into the mechanics of `qdisc_put`.


587/4 2026/08/15 19:06 tool grepper
0m Args:
map[Expression:qdisc_put PathPrefix:net/sched/sch_generic.c]

Results:
map[Output:net/sched/sch_generic.c=1041=struct Qdisc *qdisc_create_dflt(struct netdev_queue *dev_queue,
--
net/sched/sch_generic.c-1064-
net/sched/sch_generic.c:1065:	qdisc_put(sch);
net/sched/sch_generic.c-1066-	return NULL;
--
net/sched/sch_generic.c=1106=static void __qdisc_destroy(struct Qdisc *qdisc)
--
net/sched/sch_generic.c-1113-
net/sched/sch_generic.c:1114:	qdisc_put_stab(rtnl_dereference(qdisc->stab));
net/sched/sch_generic.c-1115-#endif
--
net/sched/sch_generic.c=1133=void qdisc_destroy(struct Qdisc *qdisc)
--
net/sched/sch_generic.c-1140-
net/sched/sch_generic.c:1141:void qdisc_put(struct Qdisc *qdisc)
net/sched/sch_generic.c-1142-{
--
net/sched/sch_generic.c-1151-}
net/sched/sch_generic.c:1152:EXPORT_SYMBOL(qdisc_put);
net/sched/sch_generic.c-1153-
net/sched/sch_generic.c:1154:/* Version of qdisc_put() that is called with rtnl mutex unlocked.
net/sched/sch_generic.c-1155- * Intended to be used as optimization, this function only takes rtnl lock if
--
net/sched/sch_generic.c-1158-
net/sched/sch_generic.c:1159:void qdisc_put_unlocked(struct Qdisc *qdisc)
net/sched/sch_generic.c-1160-{
--
net/sched/sch_generic.c-1167-}
net/sched/sch_generic.c:1168:EXPORT_SYMBOL(qdisc_put_unlocked);
net/sched/sch_generic.c-1169-
--
net/sched/sch_generic.c=1192=static void shutdown_scheduler_queue(struct net_device *dev,
--
net/sched/sch_generic.c-1202-
net/sched/sch_generic.c:1203:		qdisc_put(qdisc);
net/sched/sch_generic.c-1204-	}
--
net/sched/sch_generic.c=1510=void dev_shutdown(struct net_device *dev)
--
net/sched/sch_generic.c-1514-		shutdown_scheduler_queue(dev, dev_ingress_queue(dev), &noop_qdisc);
net/sched/sch_generic.c:1515:	qdisc_put(rtnl_dereference(dev->qdisc));
net/sched/sch_generic.c-1516-	rcu_assign_pointer(dev->qdisc, &noop_qdisc);
]

588/4 2026/08/15 19:06 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 203702
							output: 38
							thoughts: 10
						

Thoughts:
**My Thought Process Upon Encountering `qdisc_put`**

Right, so I'm looking at this `qdisc_put` function. My immediate instinct is to understand its purpose within the broader context of queueing disciplines (qdiscs) in networking. I know qdiscs are fundamental to how network traffic is managed and shaped, so a function named `put` suggests it's about releasing or decrementing a reference to a qdisc.

My first question is: *Why* would a qdisc need to be "put" or released? This implies a reference counting mechanism. So, I'm looking for where qdiscs are allocated or acquired, and where their reference counts are incremented. This function, `qdisc_put`, must be the counterpart, responsible for decrementing that count and, crucially, for deallocating the qdisc's memory and associated resources *if and only if* the reference count reaches zero.

I'll be scrutinizing the implementation to see:

*   **Reference Counting Logic:** How is the reference count managed? Is it a simple integer? Are there any locking mechanisms involved to ensure thread-safe access to the count, especially in a multi-processor or heavily concurrent network environment? This is critical for preventing race conditions.
*   **Deallocation Trigger:** What is the exact condition that triggers the actual destruction of the qdisc structure? It will undoubtedly be when the reference count drops to zero.
*   **Resource Cleanup:** Beyond just freeing the `struct qdisc` itself, what other resources are associated with a qdisc that need to be cleaned up? This could include things like timers, internal data structures, child qdiscs, or any network device-specific resources. I need to ensure `qdisc_put` handles all of this thoroughly.
*   **Context of Use:** Where is `qdisc_put` typically called from? Is it after a qdisc has been replaced, removed, or perhaps when a network interface goes down? Understanding these call sites will shed light on the lifecycle of a qdisc and the scenarios `qdisc_put` is designed to handle.
*   **Error Handling:** Does `qdisc_put` handle any potential errors during the deallocation process? While it's primarily a cleanup function, unexpected issues could arise, and I'll be looking for how those are addressed, if at all.
*   **Relationship to `qdisc_get` (or equivalent):** I'll be mentally (or actually) searching for the function that *increases* the reference count. This pairing is essential for a robust reference-counted system.

Essentially, `qdisc_put` represents the end-of-life process for a queueing discipline object. It's about responsible resource management, ensuring that memory and other system resources are not leaked when a qdisc is no longer actively in use, but doing so in a safe and controlled manner that respects any ongoing references. I'm expecting to see a well-defined path to decrementing a counter and then, if the conditions are right, a cascade of deallocation and cleanup operations.


589/4 2026/08/15 19:06 tool read-file
0m Args:
map[File:net/sched/sch_generic.c FirstLine:1133 LineCount:40]

Results:
map[Contents:1133:	void qdisc_destroy(struct Qdisc *qdisc)
1134:	{
1135:		if (qdisc->flags & TCQ_F_BUILTIN)
1136:			return;
1137:	
1138:		__qdisc_destroy(qdisc);
1139:	}
1140:	
1141:	void qdisc_put(struct Qdisc *qdisc)
1142:	{
1143:		if (!qdisc)
1144:			return;
1145:	
1146:		if (qdisc->flags & TCQ_F_BUILTIN ||
1147:		    !refcount_dec_and_test(&qdisc->refcnt))
1148:			return;
1149:	
1150:		__qdisc_destroy(qdisc);
1151:	}
1152:	EXPORT_SYMBOL(qdisc_put);
1153:	
1154:	/* Version of qdisc_put() that is called with rtnl mutex unlocked.
1155:	 * Intended to be used as optimization, this function only takes rtnl lock if
1156:	 * qdisc reference counter reached zero.
1157:	 */
1158:	
1159:	void qdisc_put_unlocked(struct Qdisc *qdisc)
1160:	{
1161:		if (qdisc->flags & TCQ_F_BUILTIN ||
1162:		    !refcount_dec_and_rtnl_lock(&qdisc->refcnt))
1163:			return;
1164:	
1165:		__qdisc_destroy(qdisc);
1166:		rtnl_unlock();
1167:	}
1168:	EXPORT_SYMBOL(qdisc_put_unlocked);
1169:	
1170:	/* Attach toplevel qdisc to device queue. */
1171:	struct Qdisc *dev_graft_qdisc(struct netdev_queue *dev_queue,
1172:				      struct Qdisc *qdisc)
]

590/4 2026/08/15 19:06 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 204311
							output: 38
							thoughts: 43
						

Thoughts:
**My Thought Process:**

I'm looking at the code for `__qdisc_destroy` and something immediately catches my eye. I see it's calling `call_rcu(&qdisc->rcu, qdisc_free_cb);`. This immediately triggers a question in my mind: why is it doing that? Given my expertise in this area, I know that RCU (Read-Copy-Update) is a synchronization mechanism, and `call_rcu` is used for deferred freeing of memory that might still be referenced by readers.

My next step is to dive into the implementation of `__qdisc_destroy` to understand the context of this RCU call. I need to see what operations are being performed before and after this call to ascertain why this specific mechanism is being employed for resource reclamation. I'll be looking for any potential race conditions or shared data structures that might necessitate this deferred cleanup.


591/4 2026/08/15 19:06 tool read-file
0m Args:
map[File:net/sched/sch_generic.c FirstLine:1106 LineCount:25]

Results:
map[Contents:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
]

592/4 2026/08/15 19:06 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 204751
							output: 38
							thoughts: 63
						

Thoughts:
**My Thought Process on RCU and Queue Discipline Destruction**

Okay, so I'm looking at this piece of code, and the immediate thought that pops into my head is the use of `call_rcu(&qdisc->rcu, qdisc_free_cb);`. That immediately signals to me that we're dealing with Read-Copy-Update (RCU) for safe memory reclamation of the queue discipline (`qdisc`). This is a common pattern for lockless data structures, ensuring that even if something is being read concurrently, we don't accidentally free its memory while it's still in use.

But then, a crucial nuance strikes me: the observation that `ops->destroy` is called *synchronously*. This is the key point that makes me pause and re-evaluate. If `ops->destroy` is synchronous, it means that the memory associated with the queue discipline will be freed *immediately* when `ops->destroy` returns, not deferred until the RCU grace period has passed.

This leads me to think about specific implementations. The text mentions `sfq` as an example, and it states that for `sfq`, `ops->destroy` is `sfq_destroy`. So, my next logical step is to dig into `sfq_destroy` itself. I need to understand the exact behavior of *that specific* destroy function. Does it perform synchronous freeing? Does it have any side effects that might be problematic in the context of the RCU callback (`qdisc_free_cb`) that's *also* intended to free memory? This investigation is critical to ensure there isn't a double-free or a race condition where the RCU callback tries to free something that `sfq_destroy` has already cleaned up.


593/4 2026/08/15 19:06 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:680 LineCount:20]

Results:
map[Contents: 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
]

594/4 2026/08/15 19:06 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 205136
							output: 34
							thoughts: 27
						

Thoughts:
**My Thought Process on `sfq_destroy`**

My immediate reaction upon seeing `sfq_destroy` mentioned, or perhaps while reviewing code related to queue management, was a moment of internal self-correction or verification. I found myself thinking, "Hold on, is `sfq_destroy` really located at line 770?" This isn't just a casual observation; it's a signal that my internal model of the code's structure, or a specific detail about the function's placement, might be slightly off, or I'm seeking to confirm a precise detail I might have recalled.

To resolve this, my next, very practical, step was to initiate a search within the codebase. My instinct is to leverage tools that provide definitive answers. Therefore, I decided to use `grep` to search for the exact string `sfq_destroy`. This is my go-to method for quickly pinpointing the exact occurrences of a function name, variable, or any string of interest within a project's files. It’s efficient, precise, and immediately tells me where `sfq_destroy` is defined, referenced, or otherwise mentioned, allowing me to verify its location and context.


595/4 2026/08/15 19:06 tool grepper
0m Args:
map[Expression:sfq_destroy PathPrefix:net/sched/sch_sfq.c]

Results:
map[Output:net/sched/sch_sfq.c=604=static void sfq_perturbation(struct timer_list *t)
--
net/sched/sch_sfq.c-621-	/* q->perturb_period can change under us from
net/sched/sch_sfq.c:622:	 * sfq_change() and sfq_destroy().
net/sched/sch_sfq.c-623-	 */
--
net/sched/sch_sfq.c=760=static void sfq_free(void *addr)
--
net/sched/sch_sfq.c-764-
net/sched/sch_sfq.c:765:static void sfq_destroy(struct Qdisc *sch)
net/sched/sch_sfq.c-766-{
--
net/sched/sch_sfq.c=777=static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_sfq.c-814-	if (!q->ht || !q->slots) {
net/sched/sch_sfq.c:815:		/* Note: sfq_destroy() will be called by our caller */
net/sched/sch_sfq.c-816-		return -ENOMEM;
--
net/sched/sch_sfq.c=956=static struct Qdisc_ops sfq_qdisc_ops __read_mostly = {
--
net/sched/sch_sfq.c-964-	.reset		=	sfq_reset,
net/sched/sch_sfq.c:965:	.destroy	=	sfq_destroy,
net/sched/sch_sfq.c-966-	.change		=	NULL,
]

596/4 2026/08/15 19:06 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 205633
							output: 38
							thoughts: 10
						

Thoughts:
**My Thought Process for Examining `sfq_destroy`**

Alright, the task is to understand `sfq_destroy`. My immediate inclination is to dive straight into the code. I need to see what this function is actually *doing*. My primary objective here is to grasp its purpose and mechanics, particularly in the context of how it relates to the overall scheduler framework. I'm looking for what resources it cleans up, what states it transitions out of, and any dependencies it might have.

I'll be paying close attention to:

*   **Resource Deallocation:** What memory is being freed? What data structures are being dismantled? This is crucial to avoid leaks and ensure proper cleanup.
*   **State Management:** How does `sfq_destroy` signal that the queue is no longer active? Does it modify any global or per-queue states?
*   **Dependencies and Interactions:** Does it interact with other parts of the scheduler? Does it need to signal other components to stop processing this queue? Are there any locks or synchronization mechanisms I need to be aware of that might be involved in its operation?
*   **Error Handling (or lack thereof):** What happens if `sfq_destroy` is called on an invalid queue? Does it handle potential errors gracefully, or are there assumptions about the state of the queue being destroyed?
*   **Return Values:** If it returns anything, what does that signify? Is it an indication of success, or does it convey more detailed information about the destruction process?

Ultimately, I want to be able to articulate precisely *what* `sfq_destroy` accomplishes and *how* it does it, ensuring that I'm not missing any subtle but important details that could affect system stability or performance. My goal is to have a comprehensive mental model of its lifecycle contribution.


597/4 2026/08/15 19:06 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:765 LineCount:20]

Results:
map[Contents: 765:	static void sfq_destroy(struct Qdisc *sch)
 766:	{
 767:		struct sfq_sched_data *q = qdisc_priv(sch);
 768:	
 769:		tcf_block_put(q->block);
 770:		WRITE_ONCE(q->perturb_period, 0);
 771:		timer_delete_sync(&q->perturb_timer);
 772:		sfq_free(q->ht);
 773:		sfq_free(q->slots);
 774:		kfree(q->red_parms);
 775:	}
 776:	
 777:	static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
 778:			    struct netlink_ext_ack *extack)
 779:	{
 780:		struct sfq_sched_data *q = qdisc_priv(sch);
 781:		int i;
 782:		int err;
 783:	
 784:		q->sch = sch;
]

598/4 2026/08/15 19:06 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 205976
							output: 38
							thoughts: 345
						

Thoughts:
**My Thought Process Regarding Potential Race Conditions in SFQ and HTB Interaction**

Alright, let's walk through this chain of events and my concerns. I'm tracing the execution path and looking for potential vulnerabilities, specifically around the `sfq_destroy` function and its interaction with other queuing disciplines, particularly `htb`.

My starting point is `sfq_destroy`. I see that it immediately calls `timer_delete_sync(&q->perturb_timer)`. My immediate thought is that this means the perturbation timer can't possibly fire *after* `sfq_destroy` has been called. That seems like a good thing, a clear termination.

But then, the "what if" kicks in. What if the timer is *already running* when `timer_delete_sync` is called? The documentation for `timer_delete_sync` suggests it will wait for the timer's callback to complete. So, that particular scenario seems safe.

The real worry for me emerges when I consider `sfq_perturbation` running concurrently. If `sfq_perturbation` is active, it can call `sfq_rehash`. And `sfq_rehash`, in turn, calls `qdisc_tree_reduce_backlog`. This is where things get more complex.

`qdisc_tree_reduce_backlog` enters an RCU read lock context with `rcu_read_lock()`. Inside this critical section, it attempts to look up the parent qdisc using `qdisc_lookup_rcu`. Now, my concern is this: what happens if the parent qdisc has been deleted *and freed* just before `qdisc_lookup_rcu` is called? If the parent is gone, `qdisc_lookup_rcu` should, by definition, return `NULL`.

However, I need to think about *how* a parent qdisc is removed. `qdisc_lookup_rcu` searches the qdisc hash table. If the parent qdisc was indeed deleted, it would have been removed from that hash table via `qdisc_hash_del`. So, yes, `qdisc_lookup_rcu` *would* return `NULL` in that scenario.

But here's the crucial point that makes me pause: even if the parent qdisc is gone from the hash table and `qdisc_lookup_rcu` returns `NULL`, the `sfq` qdisc's `sch->parent` field still holds the handle of the parent qdisc. The `sfq` qdisc itself hasn't been deleted yet.

This leads to the core question: how can the parent qdisc be deleted *without* deleting the `sfq` qdisc that is attached to it? My hypothesis is that this could happen if the parent is an `htb` class, and that class is deleted. When an `htb` class is deleted, it's designed to delete its leaf qdiscs, which in this case would be the `sfq` qdisc.

But what if the parent itself is an `htb` qdisc, and *that* `htb` qdisc is deleted? This is where I need to dive deeper. When *any* qdisc is deleted, the `qdisc_destroy` function is invoked. My next step is to investigate whether `qdisc_destroy` recursively destroys its children. I need to examine the implementation of `htb_destroy` to understand its cleanup behavior in this specific context. This recursive destruction behavior is key to understanding if the `sfq` qdisc would be correctly unlinked and freed *before* any potential RCU lookups on its now-invalid parent.


599/4 2026/08/15 19:06 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1618 LineCount:40]

Results:
map[Contents:1618:	static void htb_destroy(struct Qdisc *sch)
1619:	{
1620:		struct net_device *dev = qdisc_dev(sch);
1621:		struct tc_htb_qopt_offload offload_opt;
1622:		struct htb_sched *q = qdisc_priv(sch);
1623:		struct hlist_node *next;
1624:		bool nonempty, changed;
1625:		struct htb_class *cl;
1626:		unsigned int i;
1627:	
1628:		cancel_work_sync(&q->work);
1629:		qdisc_watchdog_cancel(&q->watchdog);
1630:		/* This line used to be after htb_destroy_class call below
1631:		 * and surprisingly it worked in 2.4. But it must precede it
1632:		 * because filter need its target class alive to be able to call
1633:		 * unbind_filter on it (without Oops).
1634:		 */
1635:		tcf_block_put(q->block);
1636:	
1637:		for (i = 0; i < q->clhash.hashsize; i++) {
1638:			hlist_for_each_entry(cl, &q->clhash.hash[i], common.hnode) {
1639:				tcf_block_put(cl->block);
1640:				cl->block = NULL;
1641:			}
1642:		}
1643:	
1644:		do {
1645:			nonempty = false;
1646:			changed = false;
1647:			for (i = 0; i < q->clhash.hashsize; i++) {
1648:				hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
1649:							  common.hnode) {
1650:					bool last_child;
1651:	
1652:					if (!q->offload) {
1653:						htb_destroy_class(sch, cl);
1654:						continue;
1655:					}
1656:	
1657:					nonempty = true;
]

600/4 2026/08/15 19:06 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 206969
							output: 38
							thoughts: 34
						

Thoughts:
**My Thought Process for Navigating `htb_destroy`**

Alright, so I've just encountered this `htb_destroy` function. My immediate instinct, given my expertise in how these data structures typically operate, is to understand what's happening under the hood during the destruction process.

I see that `htb_destroy` iterates and, for each class it manages, it's calling `htb_destroy_class(sch, cl)`. This tells me the overall destruction strategy involves cleaning up individual "classes" within the hash table. This is a common and sensible approach – breaking down a complex operation into smaller, manageable pieces.

My next logical step, then, is to delve into the details of `htb_destroy_class`. I need to understand precisely *how* each class is being destroyed. This will involve examining:

*   **What constitutes a "class" in this context?** Is it a bucket, a linked list within a bucket, or something else entirely?
*   **What resources are associated with each class that need to be freed?** This could include memory allocated for elements, pointers, or any internal metadata specific to that class.
*   **What specific actions are taken by `htb_destroy_class`?** Are there any order dependencies for destruction within a class? Does it deallocate memory, reset pointers, or signal other components?
*   **What are the parameters `sch` and `cl`?** I'll assume `sch` relates to the overall hash table structure or its scheduler, and `cl` is a pointer or identifier for the specific class being processed. Understanding these parameters will be crucial for interpreting the function's actions.

By understanding the mechanics of `htb_destroy_class`, I'll gain a clear picture of the complete destruction process initiated by `htb_destroy`, ensuring that all allocated resources are properly reclaimed and the hash table is left in a clean state.


601/4 2026/08/15 19:07 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1515 LineCount:30]

Results:
map[Contents:1515:	
1516:		if (parent->cmode != HTB_CAN_SEND)
1517:			htb_safe_rb_erase(&parent->pq_node,
1518:					  &q->hlevel[parent->level].wait_pq);
1519:	
1520:		parent->level = 0;
1521:		memset(&parent->inner, 0, sizeof(parent->inner));
1522:		parent->leaf.q = new_q ? new_q : &noop_qdisc;
1523:		WRITE_ONCE(parent->tokens, parent->buffer);
1524:		WRITE_ONCE(parent->ctokens, parent->cbuffer);
1525:		parent->t_c = ktime_get_ns();
1526:		parent->cmode = HTB_CAN_SEND;
1527:		if (q->offload)
1528:			parent->leaf.offload_queue = cl->leaf.offload_queue;
1529:	}
1530:	
1531:	static void htb_parent_to_leaf_offload(struct Qdisc *sch,
1532:					       struct netdev_queue *dev_queue,
1533:					       struct Qdisc *new_q)
1534:	{
1535:		struct Qdisc *old_q;
1536:	
1537:		/* One ref for cl->leaf.q, the other for dev_queue->qdisc. */
1538:		if (new_q)
1539:			qdisc_refcount_inc(new_q);
1540:		old_q = htb_graft_helper(dev_queue, new_q);
1541:		WARN_ON(!(old_q->flags & TCQ_F_BUILTIN));
1542:	}
1543:	
1544:	static int htb_destroy_class_offload(struct Qdisc *sch, struct htb_class *cl,
]

602/4 2026/08/15 19:07 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 207566
							output: 34
							thoughts: 30
						

Thoughts:
**My Thought Process on `htb_destroy_class`**

I just had a moment of surprise when I realized that the `htb_destroy_class` function appears to be located at line 1475. This feels a little later in the file than I might have initially expected, so my immediate impulse is to verify this. To do that, I'm going to perform a quick `grep` for the exact string `htb_destroy_class` within the relevant codebase. This will definitively tell me where it's defined and confirm my suspicion about its line number.


603/4 2026/08/15 19:07 tool grepper
0m Args:
map[Expression:htb_destroy_class PathPrefix:net/sched/sch_htb.c]

Results:
map[Output:net/sched/sch_htb.c=1531=static void htb_parent_to_leaf_offload(struct Qdisc *sch,
--
net/sched/sch_htb.c-1543-
net/sched/sch_htb.c:1544:static int htb_destroy_class_offload(struct Qdisc *sch, struct htb_class *cl,
net/sched/sch_htb.c-1545-				     bool last_child, bool destroying,
--
net/sched/sch_htb.c-1559-	/* When destroying, caller qdisc_graft grafts the new qdisc and invokes
net/sched/sch_htb.c:1560:	 * qdisc_put for the qdisc being destroyed. htb_destroy_class_offload
net/sched/sch_htb.c-1561-	 * does not need to graft or qdisc_put the qdisc being destroyed.
--
net/sched/sch_htb.c-1606-
net/sched/sch_htb.c:1607:static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
net/sched/sch_htb.c-1608-{
--
net/sched/sch_htb.c=1618=static void htb_destroy(struct Qdisc *sch)
--
net/sched/sch_htb.c-1629-	qdisc_watchdog_cancel(&q->watchdog);
net/sched/sch_htb.c:1630:	/* This line used to be after htb_destroy_class call below
net/sched/sch_htb.c-1631-	 * and surprisingly it worked in 2.4. But it must precede it
--
net/sched/sch_htb.c-1652-				if (!q->offload) {
net/sched/sch_htb.c:1653:					htb_destroy_class(sch, cl);
net/sched/sch_htb.c-1654-					continue;
--
net/sched/sch_htb.c-1664-				last_child = htb_parent_last_child(cl);
net/sched/sch_htb.c:1665:				htb_destroy_class_offload(sch, cl, last_child,
net/sched/sch_htb.c-1666-							  true, NULL);
--
net/sched/sch_htb.c-1672-					htb_parent_to_leaf(sch, cl, NULL);
net/sched/sch_htb.c:1673:				htb_destroy_class(sch, cl);
net/sched/sch_htb.c-1674-			}
--
net/sched/sch_htb.c=1696=static int htb_delete(struct Qdisc *sch, unsigned long arg,
--
net/sched/sch_htb.c-1717-	if (q->offload) {
net/sched/sch_htb.c:1718:		err = htb_destroy_class_offload(sch, cl, last_child, false,
net/sched/sch_htb.c-1719-						extack);
--
net/sched/sch_htb.c-1757-
net/sched/sch_htb.c:1758:	htb_destroy_class(sch, cl);
net/sched/sch_htb.c-1759-	return 0;
]

604/4 2026/08/15 19:07 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 208485
							output: 38
							thoughts: 11
						

Thoughts:
**My Thought Process for Analyzing `htb_destroy_class`**

Right, so my immediate instinct upon seeing a function named `htb_destroy_class` is to figure out its purpose and how it manages resources. "Destroy" implies deallocation or cleanup, and "class" suggests it's operating on an instance of a particular structure or object.

My first question is: what exactly does this function *do* to destroy the class instance? Is it a simple memory free, or is there more involved? I'll be looking for calls to functions like `free`, `delete`, or custom deallocation routines.

Secondly, what are the prerequisites and postconditions? Does it expect a valid, initialized `htb_class` pointer? What happens if I pass it a NULL pointer or an uninitialized one? Conversely, after `htb_destroy_class` returns, what state is the `htb_class` instance in? Is it truly gone, or are there lingering pointers or resources I need to be aware of? This is crucial for avoiding double-frees or memory leaks.

I'll also be paying close attention to its arguments. Does it take ownership of the `htb_class` instance, meaning it's responsible for freeing it? Or does it merely operate on a passed-in instance, and the caller retains responsibility for its eventual deallocation? This distinction is vital for understanding the lifecycle management.

Furthermore, I'll be examining any side effects. Does `htb_destroy_class` interact with other parts of the system? Does it update global state, signal events, or trigger other cleanup operations? Understanding these dependencies helps me predict its impact on the broader application.

Finally, I'll be looking for error handling. What happens if the destruction process itself fails? Does it return an error code, assert, or perhaps fall into a dangerous state? Robust error handling is key to reliable software.

In essence, I'm approaching `htb_destroy_class` as a black box that needs to be opened and understood in terms of its input, output, internal mechanics, and interactions, all with the goal of ensuring correct and safe resource management.


605/4 2026/08/15 19:07 tool read-file
0m Args:
map[File:net/sched/sch_htb.c FirstLine:1607 LineCount:20]

Results:
map[Contents:1607:	static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
1608:	{
1609:		if (!cl->level) {
1610:			WARN_ON(!cl->leaf.q);
1611:			qdisc_put(cl->leaf.q);
1612:		}
1613:		gen_kill_estimator(&cl->rate_est);
1614:		tcf_block_put(cl->block);
1615:		kfree(cl);
1616:	}
1617:	
1618:	static void htb_destroy(struct Qdisc *sch)
1619:	{
1620:		struct net_device *dev = qdisc_dev(sch);
1621:		struct tc_htb_qopt_offload offload_opt;
1622:		struct htb_sched *q = qdisc_priv(sch);
1623:		struct hlist_node *next;
1624:		bool nonempty, changed;
1625:		struct htb_class *cl;
1626:		unsigned int i;
]

606/4 2026/08/15 19:07 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 208836
							output: 33
							thoughts: 1632
						

Thoughts:
**The Race Condition in Qdisc Destruction and Child Timers**

My thought process initially led me to trace the destruction of an `htb` qdisc and its child `sfq` qdisc. I started by observing that `htb_destroy_class` calls `qdisc_put` on the child `sfq` qdisc. This `qdisc_put` operation, when the reference count drops to zero, triggers `__qdisc_destroy`, which in turn calls the specific `destroy` operation for the qdisc type. In the case of `sfq`, this is `sfq_destroy`.

My attention was immediately drawn to `sfq_destroy` calling `timer_delete_sync(&q->perturb_timer)`. This function, as I recall, guarantees that any running timer will complete its execution before `timer_delete_sync` returns. This led me to believe that after `qdisc_put` returned, the `sfq` timer would no longer be active.

However, a crucial question arose: what if the reference count for `cl->leaf.q` (the `sfq` qdisc) was greater than one when `qdisc_put` was called? I explored possibilities like the `sfq` qdisc being grafted elsewhere, but that seemed unlikely. The more plausible explanation was that another part of the kernel had taken a reference to it.

This brought me to `qdisc_tree_reduce_backlog`. I noted that it acquires an `rcu_read_lock` but *not* a direct reference to the qdisc. This is where the potential for a race condition began to surface. My concern was: what if the `perturb_timer` was running concurrently and called `qdisc_tree_reduce_backlog`?

I then examined the behavior of `qdisc_tree_reduce_backlog`. It iteratively traverses up the qdisc hierarchy using `qdisc_lookup_rcu`. The problem, I realized, was that the `htb_destroy` function itself, when destroying the `htb` qdisc, first removes it from the qdisc hash table via `qdisc_hash_del` within `__qdisc_destroy`. This means that by the time `htb_destroy` is actually executed (after the `qdisc_hash_del`), the `htb` qdisc is no longer findable in the hash table.

So, the sequence of events became clear:

1.  An `htb` qdisc with an `sfq` child is established, and the `sfq` has its `perturb_timer` active.
2.  The user initiates the deletion of the `htb` qdisc.
3.  `qdisc_destroy(htb)` is called, leading to `__qdisc_destroy(htb)`.
4.  Crucially, `__qdisc_destroy(htb)` calls `qdisc_hash_del(htb)`, removing the `htb` qdisc from the kernel's qdisc hash table.
5.  Subsequently, `__qdisc_destroy(htb)` calls `htb_destroy(htb)`.
6.  Meanwhile, on another CPU, the `sfq`'s `perturb_timer` fires.
7.  The timer callback, `sfq_perturbation`, executes `sfq_rehash`.
8.  `sfq_rehash`, after dropping packets, calls `qdisc_tree_reduce_backlog(sfq, ...)`.
9.  `qdisc_tree_reduce_backlog` attempts to find the parent `htb` qdisc using `qdisc_lookup_rcu(dev, TC_H_MAJ(sfq->parent))`.
10. Because `htb` was removed from the hash table in step 4, `qdisc_lookup_rcu` returns `NULL`.
11. `qdisc_tree_reduce_backlog` then encounters `sch == NULL` and `parentid != TC_H_ROOT`, leading to the `WARN_ON_ONCE(parentid != TC_H_ROOT)` being triggered. This is the symptom of the bug.
12. Back on the first CPU, `htb_destroy` continues. It calls `htb_destroy_class`, which calls `qdisc_put(sfq)`.
13. `qdisc_put(sfq)` eventually calls `__qdisc_destroy(sfq)`.
14. `__qdisc_destroy(sfq)` calls `sfq_destroy`.
15. `sfq_destroy` calls `timer_delete_sync(&q->perturb_timer)`. This call now *will* block until the timer on the other CPU finishes.
16. The timer finishes, `timer_delete_sync` returns, and the `sfq` qdisc is properly destroyed.

My analysis confirms that this is a race condition. The core of the problem lies in `qdisc_hash_del` being invoked before the child qdiscs' timers are stopped, leading to a situation where `qdisc_lookup_rcu` in `qdisc_tree_reduce_backlog` can fail to find a qdisc that is in the process of being destroyed. The current fix for `sfq` (the `timer_delete_sync`) only works *after* the other CPU's timer has already completed its potentially problematic operation.

I've considered potential solutions: either stopping timers earlier in the destruction process (which is complex for a generic `qdisc_hash_del`), making `qdisc_tree_reduce_backlog` more tolerant of a `NULL` parent during destruction (though this might have other implications for backlog accounting), or having `sfq_perturbation` proactively check if the qdisc is being destroyed. The latter seems the most direct way to prevent the problematic `qdisc_lookup_rcu` call when the parent is no longer in the hash table. I'm also curious about the locking mechanisms around `qdisc_destroy` itself and how they interact with the root qdisc lock.


607/4 2026/08/15 19:07 tool grepper
0m Args:
map[Expression:qdisc_destroy PathPrefix:net/sched/sch_generic.c]

Results:
map[Output:net/sched/sch_generic.c=1099=static void qdisc_free_cb(struct rcu_head *head)
--
net/sched/sch_generic.c-1105-
net/sched/sch_generic.c:1106:static void __qdisc_destroy(struct Qdisc *qdisc)
net/sched/sch_generic.c-1107-{
--
net/sched/sch_generic.c-1127-
net/sched/sch_generic.c:1128:	trace_qdisc_destroy(qdisc);
net/sched/sch_generic.c-1129-
--
net/sched/sch_generic.c-1132-
net/sched/sch_generic.c:1133:void qdisc_destroy(struct Qdisc *qdisc)
net/sched/sch_generic.c-1134-{
--
net/sched/sch_generic.c-1137-
net/sched/sch_generic.c:1138:	__qdisc_destroy(qdisc);
net/sched/sch_generic.c-1139-}
--
net/sched/sch_generic.c=1141=void qdisc_put(struct Qdisc *qdisc)
--
net/sched/sch_generic.c-1149-
net/sched/sch_generic.c:1150:	__qdisc_destroy(qdisc);
net/sched/sch_generic.c-1151-}
--
net/sched/sch_generic.c=1159=void qdisc_put_unlocked(struct Qdisc *qdisc)
--
net/sched/sch_generic.c-1164-
net/sched/sch_generic.c:1165:	__qdisc_destroy(qdisc);
net/sched/sch_generic.c-1166-	rtnl_unlock();
]

608/4 2026/08/15 19:07 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 210970
							output: 33
							thoughts: 316
						

Thoughts:
**My Thought Process Unraveling `qdisc_destroy` and `sfq_perturbation` Interactions**

Okay, so I'm tracing the lifecycle of a queuing discipline (qdisc) and how it interacts with the Stochastic Fairness Queuing (SFQ) mechanism, specifically its perturbation process. My initial thought is that `qdisc_destroy` is the function responsible for cleaning up a qdisc. I know that `qdisc_destroy` is typically invoked via `qdisc_put` or `qdisc_put_unlocked`. Generally, when `qdisc_put` is called, it's done while holding the `rtnl` lock, which is a critical synchronization primitive in networking.

However, my attention then shifts to `sfq_perturbation`. I recall that this function operates on a timer, which means it *doesn't* hold the `rtnl` lock. Instead, it acquires an RCU read lock (`rcu_read_lock()`) and then takes a spinlock, specifically the `root_lock` associated with the qdisc's root. This immediately raises a flag.

I then examine the flow within `sfq_perturbation` more closely. I see that it indeed acquires the `root_lock`. Crucially, it then calls `sfq_rehash`. And what does `sfq_rehash` do? It calls `qdisc_tree_reduce_backlog`. This is where the potential race condition emerges for my consideration.

My understanding is that `qdisc_destroy` is *also* called from contexts where the `rtnl` lock is held, but *not* necessarily the `root_lock`. This is the core of my concern. If `sfq_perturbation` calls `sfq_rehash` (which is under `root_lock`) and `qdisc_destroy` is *not* under `root_lock` but *is* under `rtnl` lock, there's a potential for them to conflict.

So, my immediate question becomes: does `qdisc_destroy` *actually* hold the `root_lock`? I need to verify this directly. I'll need to go back and explicitly check the implementation of `qdisc_destroy` itself, and also the path through `qdisc_put` and `qdisc_put_unlocked`, to understand the exact locking mechanisms employed in each scenario. This is the key to confirming whether my current understanding of the locking sequence leads to a problematic interaction.


609/4 2026/08/15 19:07 tool grepper
0m Args:
map[Expression:qdisc_put PathPrefix:net/sched/sch_api.c]

Results:
map[Output:net/sched/sch_api.c=454=EXPORT_SYMBOL(qdisc_get_rtab);
net/sched/sch_api.c-455-
net/sched/sch_api.c:456:void qdisc_put_rtab(struct qdisc_rate_table *tab)
net/sched/sch_api.c-457-{
--
net/sched/sch_api.c-472-}
net/sched/sch_api.c:473:EXPORT_SYMBOL(qdisc_put_rtab);
net/sched/sch_api.c-474-
--
net/sched/sch_api.c=482=static struct qdisc_size_table *qdisc_get_stab(struct nlattr *opt,
--
net/sched/sch_api.c-546-
net/sched/sch_api.c:547:void qdisc_put_stab(struct qdisc_size_table *tab)
net/sched/sch_api.c-548-{
--
net/sched/sch_api.c-556-}
net/sched/sch_api.c:557:EXPORT_SYMBOL(qdisc_put_stab);
net/sched/sch_api.c-558-
--
net/sched/sch_api.c=1057=static void notify_and_destroy(struct net *net, struct sk_buff *skb,
--
net/sched/sch_api.c-1065-	if (old)
net/sched/sch_api.c:1066:		qdisc_put(old);
net/sched/sch_api.c-1067-}
--
net/sched/sch_api.c=1091=static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
--
net/sched/sch_api.c-1140-					qdisc_refcount_inc(new);
net/sched/sch_api.c:1141:				qdisc_put(old);
net/sched/sch_api.c-1142-			}
--
net/sched/sch_api.c=1248=static struct Qdisc *qdisc_create(struct net_device *dev,
--
net/sched/sch_api.c-1357-		ops->destroy(sch);
net/sched/sch_api.c:1358:	qdisc_put_stab(rtnl_dereference(sch->stab));
net/sched/sch_api.c-1359-err_out3:
--
net/sched/sch_api.c=1370=static int qdisc_change(struct Qdisc *sch, struct nlattr **tca,
--
net/sched/sch_api.c-1397-	rcu_assign_pointer(sch->stab, stab);
net/sched/sch_api.c:1398:	qdisc_put_stab(ostab);
net/sched/sch_api.c-1399-
--
net/sched/sch_api.c=1585=static int __tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1767-		if (q)
net/sched/sch_api.c:1768:			qdisc_put(q);
net/sched/sch_api.c-1769-		return err;
]

610/4 2026/08/15 19:07 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 212178
							output: 38
							thoughts: 47
						

Thoughts:
**A Deep Dive into `qdisc_graft` and its Lock Holdings**

My current line of inquiry has led me to a crucial point in understanding the intricacies of network queueing disciplines, specifically focusing on the `qdisc_graft` function. As I examine the code, a particular interaction has caught my attention: `qdisc_graft` appears to invoke `qdisc_put(old)`. This immediately sparks a question in my mind: does `qdisc_graft` hold the `root_lock`?

This isn't a trivial question; understanding the locking mechanisms is paramount for ensuring data integrity and preventing race conditions within the kernel's networking stack. If `qdisc_graft` holds the `root_lock`, then its call to `qdisc_put(old)` could have significant implications for concurrent operations. Specifically, it raises concerns about potential deadlocks or performance bottlenecks if other critical sections also require the `root_lock` while `qdisc_graft` is holding it.

To resolve this ambiguity, my immediate next step is to delve into the source code of `qdisc_graft` itself. I need to meticulously trace its execution path, paying close attention to any lock acquisition and release operations. Only by directly inspecting the implementation of `qdisc_graft` can I definitively ascertain whether it guards its operations with the `root_lock` and, consequently, how its interaction with `qdisc_put(old)` impacts the overall locking strategy.


611/4 2026/08/15 19:07 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:1091 LineCount:50]

Results:
map[Contents:1091:	static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
1092:			       struct sk_buff *skb, struct nlmsghdr *n, u32 classid,
1093:			       struct Qdisc *new, struct Qdisc *old,
1094:			       struct netlink_ext_ack *extack)
1095:	{
1096:		struct Qdisc *q = old;
1097:		struct net *net = dev_net(dev);
1098:	
1099:		if (parent == NULL) {
1100:			unsigned int i, num_q, ingress;
1101:			struct netdev_queue *dev_queue;
1102:	
1103:			ingress = 0;
1104:			num_q = dev->num_tx_queues;
1105:			if ((q && q->flags & TCQ_F_INGRESS) ||
1106:			    (new && new->flags & TCQ_F_INGRESS)) {
1107:				ingress = 1;
1108:				dev_queue = dev_ingress_queue(dev);
1109:				if (!dev_queue) {
1110:					NL_SET_ERR_MSG(extack, "Device does not have an ingress queue");
1111:					return -ENOENT;
1112:				}
1113:	
1114:				q = rtnl_dereference(dev_queue->qdisc_sleeping);
1115:	
1116:				/* This is the counterpart of that qdisc_refcount_inc_nz() call in
1117:				 * __tcf_qdisc_find() for filter requests.
1118:				 */
1119:				if (!qdisc_refcount_dec_if_one(q)) {
1120:					NL_SET_ERR_MSG(extack,
1121:						       "Current ingress or clsact Qdisc has ongoing filter requests");
1122:					return -EBUSY;
1123:				}
1124:			}
1125:	
1126:			if (dev->flags & IFF_UP)
1127:				dev_deactivate(dev, false);
1128:	
1129:			qdisc_offload_graft_root(dev, new, old, extack);
1130:	
1131:			if (new && new->ops->attach && !ingress)
1132:				goto skip;
1133:	
1134:			if (!ingress) {
1135:				for (i = 0; i < num_q; i++) {
1136:					dev_queue = netdev_get_tx_queue(dev, i);
1137:					old = dev_graft_qdisc(dev_queue, new);
1138:	
1139:					if (new && i > 0)
1140:						qdisc_refcount_inc(new);
]

612/4 2026/08/15 19:07 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 213058
							output: 38
							thoughts: 31
						

Thoughts:
**My Thought Process Regarding `qdisc_graft` and `dev_deactivate`**

Alright, so I'm looking at the `qdisc_graft` function, and my attention immediately snaps to this line: `dev_deactivate(dev, false)`. My mind immediately flags this as a potential point of interest, a place where things might get tricky. Why? Because I'm thinking about the *parent* argument in `qdisc_graft`.

My internal monologue goes something like this: "Okay, `qdisc_graft` is being called, and it's leading to `dev_deactivate(dev, false)`. That's fine and dandy if the `parent` is `NULL`. In that scenario, we're likely dealing with a root qdisc replacement, a straightforward operation. We're deactivating the device's current root qdisc and setting up a new one. No biggie."

"But," my thought process continues, a slight furrowing of my brow (metaphorically speaking, of course), "what if the `parent` is *not* `NULL`? This is where it gets more nuanced. If `parent` is non-NULL, it implies we're not just fiddling with the root qdisc. We're grafting a qdisc onto a *specific parent qdisc* within the device's hierarchy. In this context, `dev_deactivate(dev, false)` feels... a bit too broad, or at least, I need to understand its implications more thoroughly."

"Specifically," I'm musing, "when we're grafting onto a non-root parent, the device itself isn't necessarily going dormant or needing a full deactivation in the same way as a root replacement might. `dev_deactivate`, with that `false` flag (which I understand to mean *don't requeue*), implies a certain level of suspension. Does that suspension accurately reflect the state required when we're only modifying a subtree of the qdisc hierarchy, not the entire device's queuing discipline root?"

"I'm wondering," I continue, probing deeper, "if there are subtle race conditions or state management issues that could arise here. Could calling `dev_deactivate(dev, false)` in the non-NULL parent case inadvertently impact other operations that are expecting the device's queuing infrastructure to remain in a more active, albeit potentially modified, state? Or perhaps, is `dev_deactivate` already designed to be smart enough to handle this distinction, and its call here is a necessary precursor for safely manipulating the qdisc tree even when it's not the root?"

"My gut feeling," I conclude this particular line of inquiry, "is that I need to trace the execution flow *specifically* for the non-NULL parent case. I need to understand what exactly `dev_deactivate(dev, false)` is *doing* in that context and whether it's the most appropriate action, or if there's a more granular, less intrusive way to achieve the desired qdisc graft when dealing with internal parent qdiscs."


613/4 2026/08/15 19:08 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:1141 LineCount:50]

Results:
map[Contents:1141:					qdisc_put(old);
1142:				}
1143:			} else {
1144:				old = dev_graft_qdisc(dev_queue, NULL);
1145:	
1146:				/* {ingress,clsact}_destroy() @old before grafting @new to avoid
1147:				 * unprotected concurrent accesses to net_device::miniq_{in,e}gress
1148:				 * pointer(s) in mini_qdisc_pair_swap().
1149:				 */
1150:				qdisc_notify(net, skb, n, classid, old, new, extack);
1151:				qdisc_destroy(old);
1152:	
1153:				dev_graft_qdisc(dev_queue, new);
1154:			}
1155:	
1156:	skip:
1157:			if (!ingress) {
1158:				old = rtnl_dereference(dev->qdisc);
1159:				if (new && !new->ops->attach)
1160:					qdisc_refcount_inc(new);
1161:				rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
1162:	
1163:				notify_and_destroy(net, skb, n, classid, old, new, extack);
1164:	
1165:				if (new && new->ops->attach)
1166:					new->ops->attach(new);
1167:			}
1168:	
1169:			if (dev->flags & IFF_UP)
1170:				dev_activate(dev);
1171:		} else {
1172:			const struct Qdisc_class_ops *cops = parent->ops->cl_ops;
1173:			unsigned long cl;
1174:			int err;
1175:	
1176:			/* Only support running class lockless if parent is lockless */
1177:			if (new && (new->flags & TCQ_F_NOLOCK) && !(parent->flags & TCQ_F_NOLOCK))
1178:				qdisc_clear_nolock(new);
1179:	
1180:			if (!cops || !cops->graft)
1181:				return -EOPNOTSUPP;
1182:	
1183:			cl = cops->find(parent, classid);
1184:			if (!cl) {
1185:				NL_SET_ERR_MSG(extack, "Specified class not found");
1186:				return -ENOENT;
1187:			}
1188:	
1189:			if (new && new->ops == &noqueue_qdisc_ops) {
1190:				NL_SET_ERR_MSG(extack, "Cannot assign noqueue to a class");
]

614/4 2026/08/15 19:08 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 213899
							output: 38
							thoughts: 12
						

Thoughts:
**My Deep Dive into `qdisc_graft` Continues**

Alright, I've been delving into the intricacies of `qdisc_graft`, and I'm ready to consolidate my understanding. My focus is on the core mechanisms and how they operate, assuming a sophisticated grasp of network queuing disciplines from the reader.

My current thinking centers on the fundamental operation: `qdisc_graft` essentially allows me to swap out an existing queuing discipline (qdisc) attached to a network device's queueing discipline structure (`qdisc_list`) with a new one. This isn't just a simple replacement; it involves a careful and atomic operation to prevent race conditions and ensure data integrity during the transition.

I'm picturing the internal workings. When I call `qdisc_graft`, I'm essentially asking the kernel to perform a specific set of actions. First, it needs to locate the target qdisc within the `qdisc_list`. This list, as I understand it, is a linked list or array where each entry represents a queuing discipline associated with a particular network device.

Once the target qdisc is identified, the critical part is the atomic swap. The kernel needs to atomically replace the pointer to the old qdisc with the pointer to the new qdisc. This is crucial. Imagine data packets are actively being processed or queued by the old qdisc. If the swap isn't atomic, a packet might be sent to a qdisc that's in the process of being torn down, or the new qdisc might not be fully initialized. This would lead to corruption, dropped packets, or even system instability. My understanding is that this atomicity is achieved through appropriate locking mechanisms, likely involving spinlocks or mutexes, to serialize access to the `qdisc_list` and the specific qdisc structure during the graft operation.

I'm also considering the implications for the qdiscs themselves. The old qdisc, once detached, needs to be properly handled. Depending on its implementation and whether it's being replaced or just temporarily removed, it might need to be flushed of any remaining packets, its internal state cleaned up, and potentially its memory deallocated. Similarly, the new qdisc must be correctly initialized and set up before it becomes the active qdisc. This includes setting its parent, its child qdiscs (if any), and any associated parameters.

The `qdisc_graft` operation, in my mind, is not just about the *replacement* itself, but also about the *lifecycle management* of the qdiscs involved. It's about ensuring a smooth, safe, and predictable transition from one queuing policy to another without disrupting ongoing network traffic. This is paramount for any sophisticated network stack where dynamic changes to queuing behavior are expected.

I'm particularly interested in the return values and error handling. What happens if the target qdisc doesn't exist? What if the new qdisc fails to initialize? My assumption is that the function will return an appropriate error code, allowing the calling code to react to these situations. Understanding these error paths is as important as understanding the success path for robust network management.

In essence, `qdisc_graft` represents a powerful, yet delicate, operation in the kernel's networking stack, designed for the dynamic and safe manipulation of queuing disciplines. It's a testament to the careful design required to manage such a fundamental aspect of network performance and control.


615/4 2026/08/15 19:08 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:1191 LineCount:20]

Results:
map[Contents:1191:				return -EINVAL;
1192:			}
1193:	
1194:			if (new &&
1195:			    !(parent->flags & TCQ_F_MQROOT) &&
1196:			    rcu_access_pointer(new->stab)) {
1197:				NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
1198:				return -EINVAL;
1199:			}
1200:			err = cops->graft(parent, cl, new, &old, extack);
1201:			if (err)
1202:				return err;
1203:			notify_and_destroy(net, skb, n, classid, old, new, extack);
1204:		}
1205:		return 0;
1206:	}
1207:	
1208:	static int qdisc_block_indexes_set(struct Qdisc *sch, struct nlattr **tca,
1209:					   struct netlink_ext_ack *extack)
1210:	{
]

616/4 2026/08/15 19:08 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 214243
							output: 38
							thoughts: 737
						

Thoughts:
**The Perils of Order: A Qdisc Destruction Conundrum**

My current train of thought is wrestling with a rather intricate race condition that seems to be manifesting during the destruction of network queuing disciplines (qdiscs), specifically within the context of an HTB (Hierarchical Token Bucket) qdisc containing an SFQ (Stochastic Fairness Queuing) child. It all started when I was tracing the execution flow of `notify_and_destroy`, which, as expected, eventually calls `qdisc_put` on some old qdisc.

The core of the issue arises when the parent qdisc is being deleted. The sequence of events appears to be as follows: `qdisc_destroy` is invoked on the parent, leading to `__qdisc_destroy`. Inside `__qdisc_destroy`, the qdisc is first removed from the hash table via `qdisc_hash_del`, and *then* its specific `ops->destroy` function is called. For HTB, this means `htb_destroy`, which in turn iterates through its classes and calls `htb_destroy_class` for each. This `htb_destroy_class` function then calls `qdisc_put` on the child leaf qdisc, which in this problematic scenario is an SFQ.

Now, `qdisc_put` on the SFQ qdisc will eventually trigger `__qdisc_destroy` for the SFQ itself. Again, this involves calling `qdisc_hash_del` to remove the SFQ from the hash table, followed by its `sfq_destroy` operation. The SFQ's destruction process includes calling `timer_delete_sync(&q->perturb_timer)`. This is where the real trouble begins. `timer_delete_sync` will block until the timer callback, `sfq_perturbation`, has completed.

The catch is that `sfq_perturbation` initiates a rehash operation via `sfq_rehash`. And `sfq_rehash` calls `qdisc_tree_reduce_backlog`. Here's the critical point: `qdisc_tree_reduce_backlog` attempts to look up the parent qdisc using `qdisc_lookup_rcu`. However, the parent qdisc (the HTB) has *already been removed from the hash table* by the earlier `qdisc_hash_del(parent)` call in `__qdisc_destroy(parent)`. Consequently, `qdisc_lookup_rcu` returns `NULL`, and this triggers a `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

So, to reiterate the problematic sequence:
1. The parent HTB qdisc is being destroyed (`__qdisc_destroy(htb)`).
2. It's removed from the hash table (`qdisc_hash_del(htb)`).
3. Its HTB-specific destroy logic runs (`htb_destroy(htb)`).
4. This logic destroys a class (`htb_destroy_class(htb, cl)`).
5. This leads to putting the SFQ child (`qdisc_put(sfq)`).
6. The SFQ child is destroyed (`__qdisc_destroy(sfq)`).
7. The SFQ is removed from the hash table (`qdisc_hash_del(sfq)`).
8. The SFQ's destroy logic runs (`sfq_destroy(sfq)`).
9. This calls `timer_delete_sync(&q->perturb_timer)`, blocking for the timer.

Meanwhile, the SFQ timer callback is still trying to execute:
1. `sfq_perturbation` runs.
2. It calls `sfq_rehash`.
3. `sfq_rehash` calls `qdisc_tree_reduce_backlog`.
4. `qdisc_tree_reduce_backlog` tries to find the parent qdisc (`qdisc_lookup_rcu(...)`), but it's gone from the hash table!
5. The `WARN_ON_ONCE` fires.

Now I'm pondering the fix. Should `qdisc_tree_reduce_backlog` simply ignore cases where the parent `sch` is `NULL`? My initial thought is yes, because if the parent is being destroyed, there's no longer a backlog to update on it. However, I'm also remembering that `qdisc_tree_reduce_backlog`'s primary purpose is to adjust the parent's backlog. If the parent is gone, this operation is moot. But then again, the `WARN_ON_ONCE` was likely added for a good reason, perhaps to catch other subtle bugs or states. I need to delve into the commit history of `qdisc_tree_reduce_backlog` to understand the original intent behind that warning. It feels like a delicate balance between correctness and robustness in the face of destruction.


617/4 2026/08/15 19:08 tool grepper
0m Args:
map[Expression:qdisc_tree_reduce_backlog PathPrefix:net/sched/sch_api.c]

Results:
map[Output:net/sched/sch_api.c=759=static u32 qdisc_alloc_handle(struct net_device *dev)
--
net/sched/sch_api.c-775-
net/sched/sch_api.c:776:void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
net/sched/sch_api.c-777-{
--
net/sched/sch_api.c-813-}
net/sched/sch_api.c:814:EXPORT_SYMBOL(qdisc_tree_reduce_backlog);
net/sched/sch_api.c-815-
]

618/4 2026/08/15 19:08 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 215178
							output: 33
							thoughts: 154
						

Thoughts:
**My Thought Process**

Alright, so my initial impulse is to delve into the Git history. I want to see precisely where `qdisc_tree_reduce_backlog` has been modified or where it's being invoked. However, I immediately hit a snag – I don't actually have access to run `git log` at this moment. So, that direct historical investigation is out for now.

My next thought pivots to the core problem I'm trying to address: preventing race conditions, specifically concerning timers firing while a parent object is undergoing destruction. This leads me to consider the immediate caller of `qdisc_tree_reduce_backlog`. I recall or have deduced that `sfq_rehash` is a key function that invokes it. And further up the chain, `sfq_perturbation` is the one that calls `sfq_rehash`.

This raises a broader question: are there other queue disciplines (qdiscs) that also utilize a timer mechanism and subsequently call `qdisc_tree_reduce_backlog`? My mind immediately goes to some of the more common or advanced qdiscs I'm familiar with. `fq_codel` comes to mind, given its prevalence. `cake` is another significant one, as is `choke` and `pie`.

So, my current plan is to shift my focus from the direct Git history (which I can't access) to examining the implementation details of these other qdiscs. My immediate next step is to specifically investigate `fq_codel` to see if it exhibits the same pattern and if it's a potential source of the timer-related issue I'm concerned about.


619/4 2026/08/15 19:08 tool grepper
0m Args:
map[Expression:qdisc_tree_reduce_backlog PathPrefix:net/sched/]

Results:
map[Output:net/sched/sch_api.c=759=static u32 qdisc_alloc_handle(struct net_device *dev)
--
net/sched/sch_api.c-775-
net/sched/sch_api.c:776:void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
net/sched/sch_api.c-777-{
--
net/sched/sch_api.c-813-}
net/sched/sch_api.c:814:EXPORT_SYMBOL(qdisc_tree_reduce_backlog);
net/sched/sch_api.c-815-
--
net/sched/sch_cake.c=1756=static s32 cake_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_cake.c-1835-
net/sched/sch_cake.c:1836:		qdisc_tree_reduce_backlog(sch, 1-numsegs, len-slen);
net/sched/sch_cake.c-1837-		consume_skb(skb);
--
net/sched/sch_cake.c-1857-
net/sched/sch_cake.c:1858:			qdisc_tree_reduce_backlog(sch, 1, ack_pkt_len);
net/sched/sch_cake.c-1859-			consume_skb(ack);
--
net/sched/sch_cake.c-1963-	if (same_flow) {
net/sched/sch_cake.c:1964:		qdisc_tree_reduce_backlog(sch, prev_qlen - 1,
net/sched/sch_cake.c-1965-					  prev_backlog - len);
--
net/sched/sch_cake.c-1967-	}
net/sched/sch_cake.c:1968:	qdisc_tree_reduce_backlog(sch, prev_qlen, prev_backlog);
net/sched/sch_cake.c-1969-	return NET_XMIT_SUCCESS;
--
net/sched/sch_cake.c=2007=static struct sk_buff *cake_dequeue(struct Qdisc *sch)
--
net/sched/sch_cake.c-2243-		WRITE_ONCE(b->tin_dropped, b->tin_dropped + 1);
net/sched/sch_cake.c:2244:		qdisc_tree_reduce_backlog(sch, 1, qdisc_pkt_len(skb));
net/sched/sch_cake.c-2245-		qdisc_qstats_drop(sch);
--
net/sched/sch_choke.c=113=static void choke_drop_by_idx(struct Qdisc *sch, unsigned int idx,
--
net/sched/sch_choke.c-127-	qdisc_qstats_backlog_dec(sch, skb);
net/sched/sch_choke.c:128:	qdisc_tree_reduce_backlog(sch, 1, qdisc_pkt_len(skb));
net/sched/sch_choke.c-129-	qdisc_drop(skb, sch, to_free);
--
net/sched/sch_choke.c=339=static int choke_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_choke.c-401-			}
net/sched/sch_choke.c:402:			qdisc_tree_reduce_backlog(sch, oqlen - sch->q.qlen, dropped);
net/sched/sch_choke.c-403-			q->head = 0;
--
net/sched/sch_codel.c=73=static void codel_dequeue_drop(struct Qdisc *sch)
--
net/sched/sch_codel.c-77-	if (q->stats.drop_count) {
net/sched/sch_codel.c:78:		qdisc_tree_reduce_backlog(sch, q->stats.drop_count,
net/sched/sch_codel.c-79-					  q->stats.drop_len);
--
net/sched/sch_codel.c=138=static int codel_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_codel.c-191-	}
net/sched/sch_codel.c:192:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_codel.c-193-
--
net/sched/sch_dualpi2.c=439=static int dualpi2_qdisc_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_dualpi2.c-494-			 */
net/sched/sch_dualpi2.c:495:			qdisc_tree_reduce_backlog(sch, 1 - cnt,
net/sched/sch_dualpi2.c-496-						  orig_len - byte_len);
--
net/sched/sch_dualpi2.c=610=static void dualpi2_dequeue_drop(struct Qdisc *sch)
--
net/sched/sch_dualpi2.c-614-	if (q->deferred_drops_cnt) {
net/sched/sch_dualpi2.c:615:		qdisc_tree_reduce_backlog(sch, q->deferred_drops_cnt,
net/sched/sch_dualpi2.c-616-					  q->deferred_drops_len);
--
net/sched/sch_dualpi2.c=791=static int dualpi2_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_dualpi2.c-936-	}
net/sched/sch_dualpi2.c:937:	qdisc_tree_reduce_backlog(sch, old_qlen - qdisc_qlen(sch),
net/sched/sch_dualpi2.c-938-				  old_backlog - sch->qstats.backlog);
--
net/sched/sch_fifo.c=38=static int pfifo_tail_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_fifo.c-54-
net/sched/sch_fifo.c:55:	qdisc_tree_reduce_backlog(sch, 0, prev_backlog - sch->qstats.backlog);
net/sched/sch_fifo.c-56-	return NET_XMIT_CN;
--
net/sched/sch_fq.c=1070=static int fq_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_fq.c-1205-	}
net/sched/sch_fq.c:1206:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_fq.c-1207-
--
net/sched/sch_fq_codel.c=185=static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_fq_codel.c-244-	if (ret == idx) {
net/sched/sch_fq_codel.c:245:		qdisc_tree_reduce_backlog(sch, prev_qlen - 1,
net/sched/sch_fq_codel.c-246-					  prev_backlog - pkt_len);
--
net/sched/sch_fq_codel.c-248-	}
net/sched/sch_fq_codel.c:249:	qdisc_tree_reduce_backlog(sch, prev_qlen, prev_backlog);
net/sched/sch_fq_codel.c-250-	return NET_XMIT_SUCCESS;
--
net/sched/sch_fq_codel.c=324=static void fq_codel_dequeue_drop(struct Qdisc *sch)
--
net/sched/sch_fq_codel.c-328-	if (q->cstats.drop_count) {
net/sched/sch_fq_codel.c:329:		qdisc_tree_reduce_backlog(sch, q->cstats.drop_count,
net/sched/sch_fq_codel.c-330-					  q->cstats.drop_len);
--
net/sched/sch_fq_codel.c=405=static int fq_codel_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_fq_codel.c-492-	}
net/sched/sch_fq_codel.c:493:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_fq_codel.c-494-
--
net/sched/sch_fq_pie.c=287=static int fq_pie_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_fq_pie.c-376-	}
net/sched/sch_fq_pie.c:377:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_fq_pie.c-378-
--
net/sched/sch_hhf.c=372=static int hhf_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_hhf.c-415-	/* As we dropped a packet, better let upper stack know this. */
net/sched/sch_hhf.c:416:	qdisc_tree_reduce_backlog(sch, 1, prev_backlog - sch->qstats.backlog);
net/sched/sch_hhf.c-417-	return NET_XMIT_SUCCESS;
--
net/sched/sch_hhf.c=537=static int hhf_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_hhf.c-602-	}
net/sched/sch_hhf.c:603:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_hhf.c-604-
--
net/sched/sch_netem.c=459=static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_netem.c-671-		/* Parent qdiscs accounted for 1 skb of size @prev_len */
net/sched/sch_netem.c:672:		qdisc_tree_reduce_backlog(sch, -(nb - 1), -(len - prev_len));
net/sched/sch_netem.c-673-	} else if (!skb) {
--
net/sched/sch_netem.c=729=static struct sk_buff *netem_dequeue(struct Qdisc *sch)
--
net/sched/sch_netem.c-781-					qdisc_qlen_dec(sch);
net/sched/sch_netem.c:782:					qdisc_tree_reduce_backlog(sch, 1, pkt_len);
net/sched/sch_netem.c-783-				}
--
net/sched/sch_pie.c=141=static int pie_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_pie.c-205-	}
net/sched/sch_pie.c:206:	qdisc_tree_reduce_backlog(sch, dropped_pkts, dropped_bytes);
net/sched/sch_pie.c-207-
--
net/sched/sch_sfq.c=344=sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)
--
net/sched/sch_sfq.c-434-		slot_queue_add(slot, skb);
net/sched/sch_sfq.c:435:		qdisc_tree_reduce_backlog(sch, 0, delta);
net/sched/sch_sfq.c-436-		return NET_XMIT_CN;
--
net/sched/sch_sfq.c-468-	if (qlen != slot->qlen) {
net/sched/sch_sfq.c:469:		qdisc_tree_reduce_backlog(sch, 0, dropped - qdisc_pkt_len(skb));
net/sched/sch_sfq.c-470-		return NET_XMIT_CN;
--
net/sched/sch_sfq.c-473-	/* As we dropped a packet, better let upper stack know this */
net/sched/sch_sfq.c:474:	qdisc_tree_reduce_backlog(sch, 1, dropped);
net/sched/sch_sfq.c-475-	return NET_XMIT_SUCCESS;
--
net/sched/sch_sfq.c=534=static void sfq_rehash(struct Qdisc *sch)
--
net/sched/sch_sfq.c-600-	WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
net/sched/sch_sfq.c:601:	qdisc_tree_reduce_backlog(sch, dropped, drop_len);
net/sched/sch_sfq.c-602-}
--
net/sched/sch_sfq.c=630=static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_sfq.c-742-	rtnl_kfree_skbs(to_free, tail);
net/sched/sch_sfq.c:743:	qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
net/sched/sch_sfq.c-744-
--
net/sched/sch_taprio.c=582=static int taprio_enqueue_segmented(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_taprio.c-617-	if (numsegs > 1)
net/sched/sch_taprio.c:618:		qdisc_tree_reduce_backlog(sch, 1 - numsegs, len - slen);
net/sched/sch_taprio.c-619-	consume_skb(skb);
--
net/sched/sch_tbf.c=210=static int tbf_segment(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_tbf.c-241-	if (nb > 0) {
net/sched/sch_tbf.c:242:		qdisc_tree_reduce_backlog(sch, 1 - nb, prev_len - len);
net/sched/sch_tbf.c-243-		consume_skb(skb);
]

620/4 2026/08/15 19:08 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 219242
							output: 30
							thoughts: 103
						

Thoughts:
**My Thought Process Regarding `qdisc_tree_reduce_backlog` and Timer Callbacks**

My initial thought is a bit of a double-take. I'm noticing that `qdisc_tree_reduce_backlog` appears to be a rather pervasive function, called from a multitude of locations. This suggests it's a core component of some sort. However, my attention is immediately drawn to a specific call path: `sfq_rehash` being invoked by `sfq_perturbation`, and the crucial detail that `sfq_perturbation` is a timer callback. This is where things get particularly interesting for me, as timer callbacks often operate in a distinct context and can have different implications for performance and correctness.

This observation sparks a more directed line of inquiry. If `sfq_perturbation` is a timer callback that calls `qdisc_tree_reduce_backlog`, I need to determine if this is an isolated case or part of a broader pattern. My immediate question becomes: are there *other* timer callbacks that also have this behavior? This isn't just idle curiosity; understanding the scope of this interaction is vital for a comprehensive grasp of the system's dynamics.

My mind immediately jumps to other potential timer-driven scheduling mechanisms. Given my expertise, I'm thinking about algorithms like PIE (Proportional Integral controller Enhanced) and FQ-CoDel (Fair Queueing with Controlled Delay). Therefore, I formulate the next specific questions: "Does `pie_timer` call `qdisc_tree_reduce_backlog`?" and "Does `fq_codel_timer` call `qdisc_tree_reduce_backlog`?" These are concrete, actionable hypotheses that I can then proceed to investigate.

To answer the first of these, I immediately commit to a specific investigation: I'll delve into the source code for `pie_timer`. My intended action is to locate this function within the `net/sched/sch_pie.c` file. This is a deliberate and methodical step to verify the presence and nature of the call from `pie_timer` to `qdisc_tree_reduce_backlog`.


621/4 2026/08/15 19:08 tool grepper
0m Args:
map[Expression:timer PathPrefix:net/sched/sch_pie.c]

Results:
map[Output:net/sched/sch_pie.c=25=struct pie_sched_data {
--
net/sched/sch_pie.c-28-	struct pie_stats stats;
net/sched/sch_pie.c:29:	struct timer_list adapt_timer;
net/sched/sch_pie.c-30-	struct Qdisc *sch;
--
net/sched/sch_pie.c=423=EXPORT_SYMBOL_GPL(pie_calculate_probability);
net/sched/sch_pie.c-424-
net/sched/sch_pie.c:425:static void pie_timer(struct timer_list *t)
net/sched/sch_pie.c-426-{
net/sched/sch_pie.c:427:	struct pie_sched_data *q = timer_container_of(q, t, adapt_timer);
net/sched/sch_pie.c-428-	struct Qdisc *sch = q->sch;
--
net/sched/sch_pie.c-435-
net/sched/sch_pie.c:436:	/* reset the timer to fire after 'tupdate'. tupdate is in jiffies. */
net/sched/sch_pie.c-437-	if (q->params.tupdate)
net/sched/sch_pie.c:438:		mod_timer(&q->adapt_timer, jiffies + q->params.tupdate);
net/sched/sch_pie.c-439-	spin_unlock(root_lock);
--
net/sched/sch_pie.c=443=static int pie_init(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_pie.c-452-	q->sch = sch;
net/sched/sch_pie.c:453:	timer_setup(&q->adapt_timer, pie_timer, 0);
net/sched/sch_pie.c-454-
--
net/sched/sch_pie.c-461-
net/sched/sch_pie.c:462:	mod_timer(&q->adapt_timer, jiffies + HZ / 2);
net/sched/sch_pie.c-463-	return 0;
--
net/sched/sch_pie.c=543=static void pie_destroy(struct Qdisc *sch)
--
net/sched/sch_pie.c-547-	q->params.tupdate = 0;
net/sched/sch_pie.c:548:	timer_delete_sync(&q->adapt_timer);
net/sched/sch_pie.c-549-}
]

622/4 2026/08/15 19:08 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 220031
							output: 38
							thoughts: 1551
						

Thoughts:
**My Thoughts on the `sfq` Timer and `qdisc_tree_reduce_backlog` Bug**

I've been digging into a rather intricate bug concerning the `sfq` qdisc and its interaction with `qdisc_tree_reduce_backlog`. My initial exploration led me to believe that `sfq` was unique in its reliance on a timer callback for packet dropping, a path that ultimately calls `qdisc_tree_reduce_backlog`. I double-checked other qdiscs like `pie_timer`, `fq_codel`, and `choke`, confirming that `sfq` indeed stands out in this regard.

My focus then shifted to `sfq_rehash`, which I discovered *does* drop packets under specific conditions: when the flow count exceeds `maxflows` or the queue length surpasses `limit`. Critically, after dropping packets, it calls `qdisc_tree_reduce_backlog`. This is where the problem begins to surface.

The core issue appears to be in `sfq_perturbation`, which, while the parent qdisc is being destroyed, still manages to call `qdisc_tree_reduce_backlog`. This is particularly problematic because `qdisc_tree_reduce_backlog` expects to find a valid parent qdisc.

I considered modifying `qdisc_tree_reduce_backlog` directly. My thought was: if `sch == NULL` (meaning the parent qdisc is gone), why not just return instead of issuing a `WARN_ON_ONCE`? I recalled that `WARN_ON_ONCE` was added in a specific commit, though I couldn't access its message at the moment.

However, the implication of `sch == NULL` is clear: the parent qdisc is no longer present. If it's gone, it's being destroyed, and any attempt to update its backlog is, frankly, unnecessary. But I had to be sure this was safe. The `qdisc_tree_reduce_backlog` function is called under `rcu_read_lock()`. If `sch == NULL`, it means `qdisc_lookup_rcu` failed, and my initial thought was to simply remove the warning.

An alternative fix, I pondered, could be to address `sfq_destroy`. But then I realized `sfq_destroy` is invoked via `qdisc_put`. And crucially, `qdisc_hash_del` is called *before* `ops->destroy`. This means the qdisc is already unhashed when its `destroy` operation is executed. This sequence implies that *any* timer firing between `qdisc_hash_del` and `timer_delete_sync` could potentially encounter an unhashed qdisc.

The situation became more complex when I traced the destruction hierarchy. The parent qdisc (let's say `htb`) is unhashed *before* its `destroy` operation. Then, `htb_destroy` calls `htb_destroy_class`, which in turn calls `qdisc_put(sfq)`. `qdisc_put(sfq)` leads to `__qdisc_destroy(sfq)`, which calls `qdisc_hash_del(sfq)`, and finally `ops->destroy(sfq)`, which is `sfq_destroy`. At this point, `sfq` itself is unhashed.

The problem is that `sfq_perturbation` doesn't re-look up `sfq`; it holds a direct pointer. However, it *does* look up the *parent* of `sfq`, which is `htb` in this example. Since `htb` was unhashed earlier in the destruction process, `qdisc_lookup_rcu` for `htb` will return `NULL`.

This is the crux of it: `sfq` doesn't inherently know it's unhashed, but its timer, `sfq_perturbation`, attempts to reduce the backlog of its parent (`htb`). Because `htb` has already been unhashed during its own destruction, the lookup fails.

My reasoning solidifies: the `WARN_ON_ONCE` in `qdisc_tree_reduce_backlog` is a false positive in this specific scenario. The destruction of a qdisc hierarchy isn't an atomic operation. The parent is unhashed, and then it proceeds to destroy its children. During this window, if a child's timer fires and attempts to update the parent's backlog, it will find the parent unhashed and fail the lookup.

I then considered if there was a way within `sfq` to prevent its timer from running during this delicate phase. My understanding is that `sfq`'s timer obtains the `root_lock` via `qdisc_lock(qdisc_root_sleeping(sch))`. I had to check if `qdisc_destroy` itself holds this `root_lock`. My investigation revealed that `qdisc_destroy` is called with the `rtnl` lock, but *not* the `root_lock`. However, `qdisc_destroy` does call `__qdisc_destroy`, and `__qdisc_destroy` then calls `qdisc_reset`, which *does* take the `root_lock`. This adds another layer of complexity, but the core problem of the parent being unhashed while the child's timer is active remains.

Ultimately, I've concluded that the most logical approach is to modify `qdisc_tree_reduce_backlog` to gracefully handle the `sch == NULL` case by simply returning. This acknowledges that if the parent is gone, there's no backlog to reduce. The `WARN_ON_ONCE` was likely intended to catch true invalid parent IDs, not the natural consequence of a hierarchical qdisc destruction process.


623/4 2026/08/15 19:09 tool read-file
0m Args:
map[File:net/sched/sch_generic.c FirstLine:1075 LineCount:20]

Results:
map[Contents:1075:	
1076:		trace_qdisc_reset(qdisc);
1077:	
1078:		if (ops->reset)
1079:			ops->reset(qdisc);
1080:	
1081:		__skb_queue_purge(&qdisc->gso_skb);
1082:		__skb_queue_purge(&qdisc->skb_bad_txq);
1083:	
1084:		WRITE_ONCE(qdisc->q.qlen, 0);
1085:		WRITE_ONCE(qdisc->qstats.backlog, 0);
1086:	}
1087:	EXPORT_SYMBOL(qdisc_reset);
1088:	
1089:	void qdisc_free(struct Qdisc *qdisc)
1090:	{
1091:		if (qdisc_is_percpu_stats(qdisc)) {
1092:			free_percpu(qdisc->cpu_bstats);
1093:			free_percpu(qdisc->cpu_qstats);
1094:		}
]

624/4 2026/08/15 19:09 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 221916
							output: 35
							thoughts: 445
						

Thoughts:
**The Conundrum of Concurrent qdisc Destruction and Perturbation**

My initial thought process was triggered by a rather surprising realization: `qdisc_reset`, a function I assumed would be heavily protected by locks, surprisingly does *not* acquire the `root_lock`. It simply delegates the actual reset operation to `ops->reset(qdisc)`. This immediately made me question the locking mechanism surrounding the destruction of a qdisc. Who, or what, is responsible for ensuring exclusive access during the dismantling of a qdisc structure? To my astonishment, it seems *nobody* explicitly takes the `root_lock` during this destruction phase.

This absence of a `root_lock` during `qdisc_destroy` opened up a critical concurrency concern: the possibility of `sfq_perturbation` running concurrently with `qdisc_destroy`. My investigation into `sfq_destroy` revealed that it *does* attempt to synchronize with ongoing perturbations by calling `timer_delete_sync(&q->perturb_timer);`. This means `sfq_destroy` will indeed wait for `sfq_perturbation` to complete.

However, the plot thickened when I considered the interaction between `sfq_perturbation` and the destruction of *another* qdisc, specifically `htb_destroy`. The `htb_destroy` function doesn't directly wait for `sfq`'s timer. Its synchronization point with the `sfq` comes when it calls `qdisc_put(sfq)`, which in turn invokes `sfq_destroy`. This chain of events means that `htb_destroy` could be actively executing, and `sfq_perturbation` could *simultaneously* be in progress.

The question that then loomed large was: is this concurrent execution safe? I know that `htb_destroy` proceeds to free the classes associated with the HTB qdisc. Meanwhile, `sfq_perturbation` might call `qdisc_tree_reduce_backlog`. This function, in its processing, accesses `sch->parent`, which represents the class ID. `qdisc_tree_reduce_backlog` then uses `qdisc_lookup_rcu` to find the parent qdisc, in this case, the HTB qdisc.

The critical failure point arises if `htb` has already been unhashed by `htb_destroy` by the time `qdisc_lookup_rcu` is called. In such a scenario, `qdisc_lookup_rcu` would return `NULL`, and `qdisc_tree_reduce_backlog` would inevitably crash.

The next immediate concern was the potential for a use-after-free vulnerability. I reasoned that `sfq_perturbation` operates on `sch`, which refers to the SFQ qdisc itself. Since `sfq_destroy` is still waiting for its timer to finish (due to `timer_delete_sync`), the SFQ structure is guaranteed to be valid at this point, so `sfq` itself is safe from being freed prematurely.

However, a new question arose regarding the behavior of `qdisc_root_sleeping(sch)`. I needed to clarify whether `qdisc_root_sleeping` follows the `sch->ops->cl_ops` path or if it relies on `dev_queue->qdisc_sleeping`. This detail felt crucial for understanding the full scope of resource access during these concurrent operations. My current line of thought is that the path taken by `qdisc_root_sleeping` needs careful examination.


625/4 2026/08/15 19:09 tool grepper
0m Args:
map[Expression:qdisc_root_sleeping PathPrefix:include/net/sch_generic.h]

Results:
map[Output:include/net/sch_generic.h=592=static inline struct Qdisc *qdisc_root_bh(const struct Qdisc *qdisc)
--
include/net/sch_generic.h-596-
include/net/sch_generic.h:597:static inline struct Qdisc *qdisc_root_sleeping(const struct Qdisc *qdisc)
include/net/sch_generic.h-598-{
--
include/net/sch_generic.h-601-
include/net/sch_generic.h:602:static inline spinlock_t *qdisc_root_sleeping_lock(const struct Qdisc *qdisc)
include/net/sch_generic.h-603-{
include/net/sch_generic.h:604:	struct Qdisc *root = qdisc_root_sleeping(qdisc);
include/net/sch_generic.h-605-
--
include/net/sch_generic.h=615=static inline void sch_tree_lock(struct Qdisc *q)
--
include/net/sch_generic.h-619-	else
include/net/sch_generic.h:620:		spin_lock_bh(qdisc_root_sleeping_lock(q));
include/net/sch_generic.h-621-}
--
include/net/sch_generic.h=623=static inline void sch_tree_unlock(struct Qdisc *q)
--
include/net/sch_generic.h-627-	else
include/net/sch_generic.h:628:		spin_unlock_bh(qdisc_root_sleeping_lock(q));
include/net/sch_generic.h-629-}
--
include/net/sch_generic.h=1226=static inline void qdisc_dequeue_drop(struct Qdisc *q, struct sk_buff *skb,
--
include/net/sch_generic.h-1234-	rcu_read_lock();
include/net/sch_generic.h:1235:	root = qdisc_root_sleeping(q);
include/net/sch_generic.h-1236-
]

626/4 2026/08/15 19:09 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 222924
							output: 37
							thoughts: 12
						

Thoughts:
**My Deep Dive into `qdisc_root_sleeping`**

Alright, so I've just spent some time delving into the `qdisc_root_sleeping` function. My primary objective here is to get a crystal-clear understanding of its role within the broader context of network packet scheduling, specifically focusing on how it influences the behavior of the root qdisc (queuing discipline) and the concept of "sleeping" or dormancy.

My thought process began with the function signature and its immediate surrounding code. I'm looking for clues about what triggers this function, what arguments it takes, and most importantly, what its core responsibility is. I'm assuming, given the name, that it's directly involved in managing the root qdisc's state, and the "sleeping" part suggests it's about putting the qdisc into a low-power or inactive state when there's no immediate need for it to be actively processing packets.

I'm paying close attention to any flags or counters that might indicate the presence or absence of traffic. If there are no packets to enqueue or dequeue, it stands to reason that the system should conserve resources. My hypothesis is that `qdisc_root_sleeping` is part of this resource management strategy, specifically identifying when the root qdisc can be safely put into a dormant state.

I'm also trying to understand the *conditions* under which the root qdisc might "wake up." What events would necessitate it becoming active again? Is it an incoming packet, a timer event, or perhaps a user-space request? This reciprocal action – sleeping and waking – is crucial for efficient operation. I need to trace the calls that lead *to* `qdisc_root_sleeping` and also any calls that might *wake up* the qdisc from a sleeping state.

Furthermore, I'm interested in the implications of this sleeping mechanism. Does it affect latency? Does it impact throughput? What are the trade-offs? For an expert like myself, understanding these nuances is key. I'm thinking about how this might interact with other network subsystems. For example, how does this interact with interrupt handling or deferred work queues?

My goal isn't just to understand the "what," but the "why" and the "how." Why is this sleeping mechanism necessary? How does it achieve its goal without compromising network performance? I'm essentially constructing a mental model of the root qdisc's lifecycle, with `qdisc_root_sleeping` being a significant phase in that cycle. I'll be dissecting the logic within the function, looking for conditional branches, state changes, and interactions with the underlying data structures that represent the qdisc itself. Ultimately, I want to be able to articulate the precise circumstances under which the root qdisc enters its sleeping state and what actions are taken to facilitate that slumber.


627/4 2026/08/15 19:09 tool read-file
0m Args:
map[File:include/net/sch_generic.h FirstLine:597 LineCount:10]

Results:
map[Contents: 597:	static inline struct Qdisc *qdisc_root_sleeping(const struct Qdisc *qdisc)
 598:	{
 599:		return rcu_dereference_rtnl(qdisc->dev_queue->qdisc_sleeping);
 600:	}
 601:	
 602:	static inline spinlock_t *qdisc_root_sleeping_lock(const struct Qdisc *qdisc)
 603:	{
 604:		struct Qdisc *root = qdisc_root_sleeping(qdisc);
 605:	
 606:		ASSERT_RTNL();
]

628/4 2026/08/15 19:09 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 223131
							output: 34
							thoughts: 3772
						

Thoughts:
**Analysis of the SFQ Perturbation and HTB Class Creation Failure**

I've been digging into this issue where `sfq_perturbation` appears to be operating on a stale `qdisc` root, specifically when `qdisc_graft` is involved. My initial thought process was to understand how `qdisc_root_sleeping` resolves to the correct `qdisc` and if there are race conditions during qdisc destruction or replacement.

Here's how my thinking unfolded:

1.  **Understanding `qdisc_root_sleeping`:** I first recalled that `qdisc_root_sleeping(sch)` simply returns `sch->dev->qdisc_sleeping`. This points to the root qdisc associated with the device queue.

2.  **Impact of Qdisc Destruction/Replacement:** I then considered what happens to `dev_queue->qdisc_sleeping` when the root qdisc itself is being destroyed or replaced. My understanding is that in scenarios like `dev_shutdown` or `qdisc_graft`, `dev_queue->qdisc_sleeping` *could* be updated to point to `noop_qdisc` or a new qdisc. However, if it's just a *class* being destroyed, the root qdisc should remain.

3.  **Examining `qdisc_graft`:** Digging into `qdisc_graft`, I saw that `dev->qdisc` (which `qdisc_root_sleeping` ultimately uses indirectly) is indeed updated *before* the old qdisc is `qdisc_put`. This led me to question if `dev_queue->qdisc_sleeping` followed the same pattern.

4.  **Investigating `dev_graft_qdisc`:** My next step was to look at `dev_graft_qdisc`, which is used by `qdisc_graft`. Here, I found a critical piece of information: `rcu_assign_pointer(dev_queue->qdisc_sleeping, qdisc);` is executed *before* the old qdisc is returned and subsequently decremented. This confirms my suspicion: `dev_queue->qdisc_sleeping` is updated to the new qdisc (or `noop_qdisc`) *before* the old one is potentially destroyed.

5.  **The `sfq_perturbation` Race:** This led me to the core concern: When `sfq_perturbation` calls `qdisc_root_sleeping(sch)`, it will receive the *new* root qdisc (or `noop_qdisc`). Consequently, it will attempt to acquire the lock of this *new* qdisc. However, `sfq` itself is still logically attached to the *old* root qdisc, which is in the process of being destroyed. This seemed like a potential race condition, where `sfq` might interact with the new qdisc while the old one is being torn down.

6.  **Analyzing `sfq_destroy` and `qdisc_tree_reduce_backlog`:** I then considered what `sfq_perturbation` and its related functions do. `sfq_destroy` itself doesn't take locks, only `timer_delete_sync`. The critical function, `qdisc_tree_reduce_backlog`, uses `qdisc_lookup_rcu` to find its parent. Since this uses RCU, lookup is safe. However, once the parent is found, it proceeds to access `sch->ops->cl_ops` and, more importantly, modifies `sch->q.qlen` using `WRITE_ONCE` and calls `qstats_backlog_sub` and `__qdisc_qstats_drop` *without explicitly taking any locks*.

7.  **The Backlog Modification Problem:** This lack of explicit locking for backlog updates in `qdisc_tree_reduce_backlog` struck me as problematic. My understanding is that such modifications should generally be protected by the parent qdisc's lock.

8.  **The Root Qdisc Lock Misalignment:** The crux of the perceived problem is that if the root qdisc is being replaced, `sfq_perturbation` acquires the *new* root qdisc's lock. Yet, `qdisc_tree_reduce_backlog` then proceeds to modify the backlog of the *old* root qdisc without its lock. This seemed like a clear bug.

9.  **The "No Longer Used" Justification:** I then considered a potential justification: if the old root qdisc is being destroyed, its backlog might not be actively used for enqueue/dequeue operations, making lock protection less critical for these specific updates. The use of `WRITE_ONCE` for `qlen` adds some level of safety, but it still felt like a potential area for concern.

10. **The `WARN_ON_ONCE(parentid != TC_H_ROOT)` and `sch == NULL`:** My attention then shifted to the `WARN_ON_ONCE(parentid != TC_H_ROOT)` that occurs when `sch` is `NULL`. I reasoned that `sch` becoming `NULL` means the parent qdisc was removed from the hash table, which happens in `__qdisc_destroy`. This could occur if a child qdisc's timer fires *after* its parent qdisc is destroyed but *before* the child qdisc itself is fully destroyed.

11. **The Reproducer's Failure and the Real Issue:** This is where I encountered a significant roadblock. The reproducer provided in the syzbot report failed to trigger the bug. My analysis of the `strace` output revealed that the `sfq` qdisc creation failed with `-ENOENT`, and the `htb` class creation failed with `-ERANGE`.

12. **Incompatibility of the Reproducer:** Upon deeper investigation, I pinpointed the exact cause of the failure: the reproducer's netlink message for `TCA_HTB_PARMS` is sending an attribute with a payload of 40 bytes. This corresponds to an attribute length of 44 bytes (`nla_len`). However, the kernel, specifically the `htb_policy` used for validation, expects `sizeof(struct tc_htb_opt)`, which is 44 bytes of payload (making the attribute length 48 bytes). The validation logic in `validate_nla` checks `nla_len(nla) < pt->len`. In this case, 40 < 44, leading to the `-ERANGE` error.

13. **Conclusion on the Bug Trigger:** This mismatch means the `sfq` and `htb` qdiscs were *never successfully created* in my test environment. Therefore, the bug as described in the original syzbot report, which relies on these qdiscs being present and then subsequently manipulated or destroyed, could not be triggered. The reproducer itself is incompatible with the kernel version I'm testing against due to a change in the size of `struct tc_htb_opt` (addition of `prio` field).

14. **The `WARN_ON_ONCE` Analysis:** Returning to the `WARN_ON_ONCE` condition, I concluded that the `sch == NULL` scenario primarily arises when the parent qdisc is being destroyed. Since qdisc destruction isn't an atomic operation, this transient state where a lookup might fail is expected. Therefore, the `WARN_ON_ONCE` itself seems misplaced, as the code already correctly handles the `sch == NULL` case by breaking.

In summary, while I've thoroughly analyzed the potential race conditions and locking issues related to `sfq_perturbation` and qdisc management, the immediate problem encountered was the failure of the provided reproducer due to a netlink attribute size mismatch, rendering the bug itself unobservable in this specific test execution. The core of the reproducer's failure lies in the discrepancy between the hardcoded netlink message attribute length and the kernel's expectation for `struct tc_htb_opt`.


629/4 2026/08/15 19:10 tool read-file
0m Args:
map[File:lib/nlattr.c FirstLine:393 LineCount:20]

Results:
map[Contents: 393:	static int validate_nla(const struct nlattr *nla, int maxtype,
 394:				const struct nla_policy *policy, unsigned int validate,
 395:				struct netlink_ext_ack *extack, unsigned int depth)
 396:	{
 397:		u16 strict_start_type = policy[0].strict_start_type;
 398:		const struct nla_policy *pt;
 399:		int minlen = 0, attrlen = nla_len(nla), type = nla_type(nla);
 400:		int err = -ERANGE;
 401:	
 402:		if (strict_start_type && type >= strict_start_type)
 403:			validate |= NL_VALIDATE_STRICT;
 404:	
 405:		if (type <= 0 || type > maxtype)
 406:			return 0;
 407:	
 408:		type = array_index_nospec(type, maxtype + 1);
 409:		pt = &policy[type];
 410:	
 411:		BUG_ON(pt->type > NLA_TYPE_MAX);
 412:	
]

630/4 2026/08/15 19:10 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 227269
							output: 34
							thoughts: 14
						

Thoughts:
**My Deep Dive into `validate_nla`**

Alright, let's really get into the weeds with `validate_nla`. My primary objective here is to gain a comprehensive understanding of this module, and to do that, I need to dissect its functionality layer by layer. I'm looking to grasp not just *what* it does, but the *how* and the *why* behind its design choices. I'm particularly interested in its validation logic – what are the specific criteria it's checking for, what are the potential failure points, and what are the implications of those failures? I also want to trace the flow of data through the module, understanding how it's processed and transformed. Ultimately, I'm aiming to develop a mental model of `validate_nla` that's so robust, I could effectively explain its inner workings to another expert in our field. This means I'm not just skimming; I'm actively engaging with the code, asking questions, and forming hypotheses about its behavior.


631/4 2026/08/15 19:10 tool read-file
0m Args:
map[File:lib/nlattr.c FirstLine:413 LineCount:40]

Results:
map[Contents: 413:		if (nla_attr_len[pt->type] && attrlen != nla_attr_len[pt->type]) {
 414:			pr_warn_ratelimited("netlink: '%s': attribute type %d has an invalid length.\n",
 415:					    current->comm, type);
 416:			if (validate & NL_VALIDATE_STRICT_ATTRS) {
 417:				NL_SET_ERR_MSG_ATTR_POL(extack, nla, pt,
 418:							"invalid attribute length");
 419:				return -EINVAL;
 420:			}
 421:		}
 422:	
 423:		if (validate & NL_VALIDATE_NESTED) {
 424:			if ((pt->type == NLA_NESTED || pt->type == NLA_NESTED_ARRAY) &&
 425:			    !(nla->nla_type & NLA_F_NESTED)) {
 426:				NL_SET_ERR_MSG_ATTR_POL(extack, nla, pt,
 427:							"NLA_F_NESTED is missing");
 428:				return -EINVAL;
 429:			}
 430:			if (pt->type != NLA_NESTED && pt->type != NLA_NESTED_ARRAY &&
 431:			    pt->type != NLA_UNSPEC && (nla->nla_type & NLA_F_NESTED)) {
 432:				NL_SET_ERR_MSG_ATTR_POL(extack, nla, pt,
 433:							"NLA_F_NESTED not expected");
 434:				return -EINVAL;
 435:			}
 436:		}
 437:	
 438:		switch (pt->type) {
 439:		case NLA_REJECT:
 440:			if (extack && pt->reject_message) {
 441:				NL_SET_BAD_ATTR(extack, nla);
 442:				extack->_msg = pt->reject_message;
 443:				return -EINVAL;
 444:			}
 445:			err = -EINVAL;
 446:			goto out_err;
 447:	
 448:		case NLA_FLAG:
 449:			if (attrlen > 0)
 450:				goto out_err;
 451:			break;
 452:	
]

632/4 2026/08/15 19:10 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 227977
							output: 34
							thoughts: 12
						

Thoughts:
**My Thought Process:**

I'm trying to understand the flow of execution and specifically where the length of a `pt` structure is being evaluated. My immediate question is, "Wait, where does it check `pt->len`?" I need to trace the code to pinpoint the exact location of this check. This implies I'm likely debugging, reviewing existing code, or designing a new feature where this length check is crucial for correctness or performance. My focus is on identifying the conditional statements or logic that accesses and utilizes `pt->len`.


633/4 2026/08/15 19:10 tool read-file
0m Args:
map[File:lib/nlattr.c FirstLine:520 LineCount:40]

Results:
map[Contents: 520:					 */
 521:					return err;
 522:				}
 523:			}
 524:			break;
 525:		case NLA_NESTED_ARRAY:
 526:			/* a nested array attribute is allowed to be empty; if its not,
 527:			 * it must have a size of at least NLA_HDRLEN.
 528:			 */
 529:			if (attrlen == 0)
 530:				break;
 531:			if (attrlen < NLA_HDRLEN)
 532:				goto out_err;
 533:			if (pt->nested_policy) {
 534:				int err;
 535:	
 536:				err = nla_validate_array(nla_data(nla), nla_len(nla),
 537:							 pt->len, pt->nested_policy,
 538:							 extack, validate, depth);
 539:				if (err < 0) {
 540:					/*
 541:					 * return directly to preserve the inner
 542:					 * error message/attribute pointer
 543:					 */
 544:					return err;
 545:				}
 546:			}
 547:			break;
 548:	
 549:		case NLA_UNSPEC:
 550:			if (validate & NL_VALIDATE_UNSPEC) {
 551:				NL_SET_ERR_MSG_ATTR(extack, nla,
 552:						    "Unsupported attribute");
 553:				return -EINVAL;
 554:			}
 555:			if (attrlen < pt->len)
 556:				goto out_err;
 557:			break;
 558:	
 559:		default:
]

634/4 2026/08/15 19:10 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 228523
							output: 605
							thoughts: 2311
						

Thoughts:
**My Thought Process on the `htb` and `sfq` Bug Reproduction Failure**

Okay, so the reproducer I was using failed to trigger the bug, and I've spent some time dissecting *why*. It all boils down to a fundamental mismatch in how the netlink message was constructed versus what the current kernel expects.

Here’s the breakdown of my thinking:

1.  **The Initial Observation:** The core issue I saw was that the reproducer was failing early on, specifically when trying to create the `htb` class. The error reported back was `-ERANGE`. This immediately told me that some size or range validation was failing *before* any race conditions could even be considered.

2.  **Tracing the Error (`-ERANGE`):** I knew that `-ERANGE` typically signifies a value out of bounds. My first step was to look at where this error originates in the kernel when dealing with netlink attributes. I traced it to the `validate_nla` function within `lib/nlattr.c`. This function is responsible for checking the length and type of netlink attributes against a provided policy.

3.  **Examining the `htb` Policy:** The relevant policy for the `htb` scheduler is defined in `net/sched/sch_htb.c`. Specifically, for the `TCA_HTB_PARMS` attribute, the policy states: `[TCA_HTB_PARMS] = { .len = sizeof(struct tc_htb_opt) }`. Since no specific `.type` is given, it defaults to `NLA_UNSPEC`, which is precisely what `validate_nla` checks against using the `pt->len` value.

4.  **The Size Mismatch (`struct tc_htb_opt`):** This is the crux of the problem. The `validate_nla` function checks `if (attrlen < pt->len)`. In this case, `pt->len` is `sizeof(struct tc_htb_opt)`. My investigation revealed that on the *current* kernel I was testing against, `sizeof(struct tc_htb_opt)` is **44 bytes**. This change was due to the addition of the `prio` field in commit 8a8e3d84b171.

5.  **Analyzing the Reproducer's Message:** I then looked at the actual netlink message generated by the reproducer. The strace showed `2c 00 01 00` for the `TCA_HTB_PARMS` attribute.
    *   `2c` in hex is 44. This is `nla->nla_len`, which is the *total* length of the attribute, including the 4-byte header (`nla_type` and `nla_len`).
    *   So, the payload length (`attrlen`) is calculated as `nla_len(nla)`, which is `nla->nla_len - NLA_HDRLEN`. This gives `44 - 4 = 40` bytes.

6.  **The Triggering Condition:** Now, plug these values back into the `validate_nla` check: `attrlen < pt->len`. This becomes `40 < 44`. Since this condition is true, `validate_nla` returns an error, which is then propagated as `-ERANGE` (initialized to `err = -ERANGE` before the check).

7.  **Why the Bug Was Not Triggered:** This size mismatch perfectly explains why the reproducer failed.
    *   The `htb` class creation failed because `TCA_HTB_PARMS` was considered malformed (too short).
    *   Because the `htb` class couldn't be created, the subsequent attempt to create the `sfq` qdisc (which requires a valid `htb` parent) failed with `-ENOENT`.
    *   Without the `sfq` qdisc being successfully created, its `perturb_timer` was never started.
    *   And without the timer running, the race condition between `htb_destroy` (unhashing the parent) and `sfq_perturbation` (looking up the parent via `qdisc_lookup_rcu` after the unhash) could never occur. This race condition is what leads to the `WARN_ON_ONCE` in `qdisc_tree_reduce_backlog`.

8.  **The Fix for the Reproducer:** To actually trigger the bug, the reproducer needs to be updated. It must send a `TCA_HTB_PARMS` attribute that satisfies the current kernel's validation.
    *   This means the payload needs to be 44 bytes long.
    *   Therefore, the `nla_len` (the first two bytes of the attribute header) needs to be `44 + NLA_HDRLEN = 44 + 4 = 48` bytes. So, `30 00` in hex.
    *   Furthermore, I realized that `TCA_HTB_PARMS` is nested within `TCA_OPTIONS`. The strace shows `TCA_OPTIONS` with length 48 (`30 00 02 00`). This *also* needs to be updated to accommodate the larger `TCA_HTB_PARMS`. If `TCA_HTB_PARMS` is now 48 bytes, `TCA_OPTIONS` needs to be `48 + NLA_HDRLEN = 48 + 4 = 52` bytes. So, `34 00 02 00`.
    *   Crucially, the original payload was 40 bytes. To reach 44 bytes, 4 bytes of padding (zeros) need to be added to the end of the `TCA_HTB_PARMS` payload.

9.  **Revisiting the Bug Itself:** The underlying bug is indeed a race condition. The `htb` qdisc is destroyed by calling `qdisc_hash_del`, effectively removing it from the lookup table. Then, its child qdiscs (like `sfq`) are destroyed. `sfq_destroy` tries to synchronize and delete its perturbation timer. If the timer callback (`sfq_perturbation`) fires *after* the parent `htb` has been unhashed but *before* the timer is fully stopped, it will attempt to look up the parent `htb` via `qdisc_lookup_rcu`. Since it's unhashed, it gets `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`. My analysis confirms that this warning, while appearing like a bug, is a symptom of the non-atomic destruction process where timers can outlive the parent's presence in the hash table. The correct behavior is likely to simply return if the parent `sch` is `NULL` in `qdisc_tree_reduce_backlog`, rather than warning.

In summary, the reproducer failed because it was built for an older kernel where `struct tc_htb_opt` was smaller. The netlink attribute validation caught this size mismatch, preventing the `htb` class from being created, and thus the entire chain of events leading to the race condition was never initiated. The fix requires updating the netlink message lengths and the payload size to match the current kernel's expectations.


635/4 2026/08/15 19:11 tool set-results
0m Args:
map[Feedback:The reproduction attempt failed because the generated C program sends an incompatible netlink message for creating the `htb` class, resulting in an `-ERANGE` error.

1. **Failing System Call & Error**: The `recvfrom` trace shows that the netlink request to create the `htb` class (`RTM_NEWTCLASS`) failed with `-ERANGE` (34).
2. **Validation Logic**: The error originates from `validate_nla()` in `lib/nlattr.c`. For `NLA_UNSPEC` attributes, it checks if the payload length (`attrlen`) is at least `pt->len`.
3. **Constraint Violation**: The `htb_policy` in `net/sched/sch_htb.c` defines `[TCA_HTB_PARMS] = { .len = sizeof(struct tc_htb_opt) }`. In the current kernel, `sizeof(struct tc_htb_opt)` is 44 bytes (due to the recent addition of the `prio` field). However, the reproducer sends a `TCA_HTB_PARMS` attribute with a payload of only 40 bytes (`nla_len` = 44, which includes the 4-byte header). Since 40 < 44, `validate_nla()` rejects it with `-ERANGE`.
4. **Consequence**: Because the `htb` class creation fails, the subsequent creation of the `sfq` qdisc (which specifies the `htb` class as its parent) fails with `-ENOENT`. Without the `sfq` qdisc, its `perturb_timer` is never started, and the race condition cannot be triggered.

**Bug Analysis**: The original bug is a race condition between `htb_destroy()` and `sfq_perturbation()`. When the `htb` qdisc is destroyed, it is first unhashed via `qdisc_hash_del()`. Then it destroys its child classes and their leaf qdiscs (like `sfq`). `sfq_destroy()` calls `timer_delete_sync()` to stop the perturb timer. If the timer fires *after* the `htb` qdisc is unhashed but *before* `timer_delete_sync()` completes, `sfq_perturbation()` will call `sfq_rehash()`, which may drop packets and call `qdisc_tree_reduce_backlog()`. This function tries to look up the parent `htb` qdisc via `qdisc_lookup_rcu()`. Since the parent is already unhashed, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`. ProbePassed:false TerminalError: TitleMatches:false]

Results:
map[Feedback:The reproduction attempt failed because the generated C program sends an incompatible netlink message for creating the `htb` class, resulting in an `-ERANGE` error.

1. **Failing System Call & Error**: The `recvfrom` trace shows that the netlink request to create the `htb` class (`RTM_NEWTCLASS`) failed with `-ERANGE` (34).
2. **Validation Logic**: The error originates from `validate_nla()` in `lib/nlattr.c`. For `NLA_UNSPEC` attributes, it checks if the payload length (`attrlen`) is at least `pt->len`.
3. **Constraint Violation**: The `htb_policy` in `net/sched/sch_htb.c` defines `[TCA_HTB_PARMS] = { .len = sizeof(struct tc_htb_opt) }`. In the current kernel, `sizeof(struct tc_htb_opt)` is 44 bytes (due to the recent addition of the `prio` field). However, the reproducer sends a `TCA_HTB_PARMS` attribute with a payload of only 40 bytes (`nla_len` = 44, which includes the 4-byte header). Since 40 < 44, `validate_nla()` rejects it with `-ERANGE`.
4. **Consequence**: Because the `htb` class creation fails, the subsequent creation of the `sfq` qdisc (which specifies the `htb` class as its parent) fails with `-ENOENT`. Without the `sfq` qdisc, its `perturb_timer` is never started, and the race condition cannot be triggered.

**Bug Analysis**: The original bug is a race condition between `htb_destroy()` and `sfq_perturbation()`. When the `htb` qdisc is destroyed, it is first unhashed via `qdisc_hash_del()`. Then it destroys its child classes and their leaf qdiscs (like `sfq`). `sfq_destroy()` calls `timer_delete_sync()` to stop the perturb timer. If the timer fires *after* the `htb` qdisc is unhashed but *before* `timer_delete_sync()` completes, `sfq_perturbation()` will call `sfq_rehash()`, which may drop packets and call `qdisc_tree_reduce_backlog()`. This function tries to look up the parent `htb` qdisc via `qdisc_lookup_rcu()`. Since the parent is already unhashed, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`. ProbePassed:false TerminalError: TitleMatches:false]

636/3 2026/08/15 19:11 action loop-controller
0m Results:
map[CapabilitiesVerified:true ContinueSignal:continue EquivalenceAnalysis: OracleFeedback:The reproduction attempt failed because the generated C program sends an incompatible netlink message for creating the `htb` class, resulting in an `-ERANGE` error.

1. **Failing System Call & Error**: The `recvfrom` trace shows that the netlink request to create the `htb` class (`RTM_NEWTCLASS`) failed with `-ERANGE` (34).
2. **Validation Logic**: The error originates from `validate_nla()` in `lib/nlattr.c`. For `NLA_UNSPEC` attributes, it checks if the payload length (`attrlen`) is at least `pt->len`.
3. **Constraint Violation**: The `htb_policy` in `net/sched/sch_htb.c` defines `[TCA_HTB_PARMS] = { .len = sizeof(struct tc_htb_opt) }`. In the current kernel, `sizeof(struct tc_htb_opt)` is 44 bytes (due to the recent addition of the `prio` field). However, the reproducer sends a `TCA_HTB_PARMS` attribute with a payload of only 40 bytes (`nla_len` = 44, which includes the 4-byte header). Since 40 < 44, `validate_nla()` rejects it with `-ERANGE`.
4. **Consequence**: Because the `htb` class creation fails, the subsequent creation of the `sfq` qdisc (which specifies the `htb` class as its parent) fails with `-ENOENT`. Without the `sfq` qdisc, its `perturb_timer` is never started, and the race condition cannot be triggered.

**Bug Analysis**: The original bug is a race condition between `htb_destroy()` and `sfq_perturbation()`. When the `htb` qdisc is destroyed, it is first unhashed via `qdisc_hash_del()`. Then it destroys its child classes and their leaf qdiscs (like `sfq`). `sfq_destroy()` calls `timer_delete_sync()` to stop the perturb timer. If the timer fires *after* the `htb` qdisc is unhashed but *before* `timer_delete_sync()` completes, `sfq_perturbation()` will call `sfq_rehash()`, which may drop packets and call `qdisc_tree_reduce_backlog()`. This function tries to look up the parent `htb` qdisc via `qdisc_lookup_rcu()`. Since the parent is already unhashed, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`. ReproC: Reproduced:false ReproducedBugTitle: ReproducedCrashReport:]

637/2 2026/08/15 19:11 iteration 5
18m
638/3 2026/08/15 19:11 action If
4m Args:
map[OracleFeedback:The reproduction attempt failed because the generated C program sends an incompatible netlink message for creating the `htb` class, resulting in an `-ERANGE` error.

1. **Failing System Call & Error**: The `recvfrom` trace shows that the netlink request to create the `htb` class (`RTM_NEWTCLASS`) failed with `-ERANGE` (34).
2. **Validation Logic**: The error originates from `validate_nla()` in `lib/nlattr.c`. For `NLA_UNSPEC` attributes, it checks if the payload length (`attrlen`) is at least `pt->len`.
3. **Constraint Violation**: The `htb_policy` in `net/sched/sch_htb.c` defines `[TCA_HTB_PARMS] = { .len = sizeof(struct tc_htb_opt) }`. In the current kernel, `sizeof(struct tc_htb_opt)` is 44 bytes (due to the recent addition of the `prio` field). However, the reproducer sends a `TCA_HTB_PARMS` attribute with a payload of only 40 bytes (`nla_len` = 44, which includes the 4-byte header). Since 40 < 44, `validate_nla()` rejects it with `-ERANGE`.
4. **Consequence**: Because the `htb` class creation fails, the subsequent creation of the `sfq` qdisc (which specifies the `htb` class as its parent) fails with `-ENOENT`. Without the `sfq` qdisc, its `perturb_timer` is never started, and the race condition cannot be triggered.

**Bug Analysis**: The original bug is a race condition between `htb_destroy()` and `sfq_perturbation()`. When the `htb` qdisc is destroyed, it is first unhashed via `qdisc_hash_del()`. Then it destroys its child classes and their leaf qdiscs (like `sfq`). `sfq_destroy()` calls `timer_delete_sync()` to stop the perturb timer. If the timer fires *after* the `htb` qdisc is unhashed but *before* `timer_delete_sync()` completes, `sfq_perturbation()` will call `sfq_rehash()`, which may drop packets and call `qdisc_tree_reduce_backlog()`. This function tries to look up the parent `htb` qdisc via `qdisc_lookup_rcu()`. Since the parent is already unhashed, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.]

639/4 2026/08/15 19:11 agent strategy-refiner
4m Model:
best-expensive

Instruction:
You are an expert in Linux kernel debugging.
Refine the reproduction strategy based on feedback from previous attempts.
Analyze the technical diagnosis provided in the oracle feedback and translate it into concrete,
step-by-step instructions for the repro-generator on how to modify the code structure, alignments,
offsets, or parameters of the candidate program.

=== TOOL SELECTION GUIDELINES ===
- Prefer codesearch-definition-source and codesearch-struct-layout first for symbol lookups.
- Fall back to read-file or grepper for macros, headers, or if symbol lookup fails.

=== CRITICAL PROHIBITIONS ===
- Do NOT repeat searches for the same symbols or files. Use information you have already gathered.
- Do NOT write long explanations. Keep your reasoning short and focused on actionable changes.
- Do NOT assume a bug is fixed based on git commit history.
- If you are stuck, try a different approach or proceed to generate a candidate reproducer.
Prefer calling several tools at the same time to save round-trips.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Current Strategy: An analysis of the kernel source code reveals why the previous reproducer failed and exactly what is needed to trigger the bug.

### Technical Diagnosis
The race condition occurs when `sfq_perturbation` fires, calls `sfq_rehash`, and `sfq_rehash` calls `qdisc_tree_reduce_backlog`. However, `sfq_rehash` **only** calls `qdisc_tree_reduce_backlog` if re-enqueueing a packet fails (i.e., `sfq_enqueue` returns something other than `NET_XMIT_SUCCESS`). 

In the previous reproducer, we sent identical packets. Because the total number of packets was below the queue limit, `sfq_enqueue` always succeeded during rehash, meaning `qdisc_tree_reduce_backlog` was **never called**, completely missing the buggy code path.

To force `sfq_enqueue` to fail during rehash, we must:
1. Set the SFQ `depth` parameter to `1`. This restricts each internal flow bucket to a maximum of 1 packet.
2. Send multiple valid IP/UDP packets with **varying source ports** to the same SFQ qdisc. Initially, they will hash to different flow buckets and be successfully queued.
3. When the `perturb` timer fires, `sfq_rehash` changes the hash perturbation seed and re-enqueues the packets. Because of the new seed, some packets will inevitably collide into the same flow bucket.
4. Since `depth` is 1, the collision causes `sfq_enqueue` to drop the packet and return `NET_XMIT_DROP`. This forces `sfq_rehash` to call `qdisc_tree_reduce_backlog`, triggering the bug.

Additionally, to ensure the timer fires exactly during the destruction window, we increase the number of HTB classes to 5000 (widening the destruction window) and use a carefully calculated sleep with jitter to overlap the synchronous `RTM_DELQDISC` perfectly with the timers firing.

### C Reproducer

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define NUM_CLASSES 5000

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    delete_qdisc(ifindex);
    
    char batch_file[64];
    sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
    
    while (1) {
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup HTB -> SFQ hierarchy with 5000 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            // CRITICAL: depth 1 forces sfq_enqueue to drop packets during rehash if they collide
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1 limit 127 depth 1\n", ifname, c, c + 1);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to the last 200 classes to ensure the SFQ queues are not empty
        char pkt[64] = {0};
        struct ethhdr *eth = (struct ethhdr *)pkt;
        struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
        struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

        eth->h_proto = htons(ETH_P_IP);
        ip->version = 4;
        ip->ihl = 5;
        ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
        ip->protocol = IPPROTO_UDP;
        ip->saddr = htonl(0x01020304);
        ip->daddr = htonl(0x05060708);
        udp->len = htons(sizeof(struct udphdr));

        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = 0x10000 | c; // 1:c
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 50; p++) {
                udp->source = htons(p); // Vary source port to change hash and avoid initial collisions
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // We sleep for 1 second minus the setup time, plus a random jitter up to 200ms
        // so that delete_qdisc overlaps perfectly with the timers firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 200000;
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getuid()); fclose(f); }
    f = fopen("/proc/self/setgroups", "w");
    if (f) { fprintf(f, "deny\n"); fclose(f); }
    f = fopen("/proc/self/gid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getgid()); fclose(f); }
    
    system("ip link set lo up");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```
Feedback: The reproduction attempt failed because the generated C program sends an incompatible netlink message for creating the `htb` class, resulting in an `-ERANGE` error.

1. **Failing System Call & Error**: The `recvfrom` trace shows that the netlink request to create the `htb` class (`RTM_NEWTCLASS`) failed with `-ERANGE` (34).
2. **Validation Logic**: The error originates from `validate_nla()` in `lib/nlattr.c`. For `NLA_UNSPEC` attributes, it checks if the payload length (`attrlen`) is at least `pt->len`.
3. **Constraint Violation**: The `htb_policy` in `net/sched/sch_htb.c` defines `[TCA_HTB_PARMS] = { .len = sizeof(struct tc_htb_opt) }`. In the current kernel, `sizeof(struct tc_htb_opt)` is 44 bytes (due to the recent addition of the `prio` field). However, the reproducer sends a `TCA_HTB_PARMS` attribute with a payload of only 40 bytes (`nla_len` = 44, which includes the 4-byte header). Since 40 < 44, `validate_nla()` rejects it with `-ERANGE`.
4. **Consequence**: Because the `htb` class creation fails, the subsequent creation of the `sfq` qdisc (which specifies the `htb` class as its parent) fails with `-ENOENT`. Without the `sfq` qdisc, its `perturb_timer` is never started, and the race condition cannot be triggered.

**Bug Analysis**: The original bug is a race condition between `htb_destroy()` and `sfq_perturbation()`. When the `htb` qdisc is destroyed, it is first unhashed via `qdisc_hash_del()`. Then it destroys its child classes and their leaf qdiscs (like `sfq`). `sfq_destroy()` calls `timer_delete_sync()` to stop the perturb timer. If the timer fires *after* the `htb` qdisc is unhashed but *before* `timer_delete_sync()` completes, `sfq_perturbation()` will call `sfq_rehash()`, which may drop packets and call `qdisc_tree_reduce_backlog()`. This function tries to look up the parent `htb` qdisc via `qdisc_lookup_rcu()`. Since the parent is already unhashed, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

Reply:
An analysis of the feedback reveals that the previous reproducer failed because the `tc` binary in the environment was compiled against older kernel headers. Specifically, the `struct tc_htb_opt` size increased from 40 to 44 bytes in newer kernels (due to the addition of the `prio` field). When `tc` sent a 40-byte payload for `TCA_HTB_PARMS`, the kernel's `validate_nla()` rejected it with `-ERANGE`, preventing the `htb` classes and the subsequent `sfq` qdiscs from being created.

To bypass this struct size mismatch entirely, we can replace `htb` with the `prio` qdisc. The `prio` qdisc is a classful qdisc whose configuration struct (`struct tc_prio_qopt`) is only 20 bytes and has remained unchanged since Linux 2.2. Furthermore, `prio` automatically creates its classes, meaning we don't even need to send class creation commands. 

To ensure the race window is wide enough, we can nest `prio` qdiscs multiple levels deep (e.g., 7 levels), creating a massive tree of over 3,000 qdiscs. When the root `prio` qdisc is destroyed, it recursively unhashes and destroys all children top-down. This takes a significant amount of time. During this long destruction window, the `perturb_timer` of the leaf `sfq` qdiscs will fire, triggering `qdisc_tree_reduce_backlog()`. Because the ancestors are already unhashed, the lookup will fail and trigger the `WARN_ON_ONCE`.

### C Reproducer

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

// Recursively generates a deep tree of prio qdiscs with sfq leaves
void generate_classes(FILE *bf, const char *ifname, int parent_major, int parent_minor, int level, int *handle_counter) {
    if (level == 0) {
        // CRITICAL: depth 1 forces sfq_enqueue to drop packets during rehash if they collide
        fprintf(bf, "qdisc add dev %s parent %x:%x handle %x: sfq perturb 1 limit 127 depth 1\n", 
                ifname, parent_major, parent_minor, (*handle_counter)++);
        return;
    }
    
    int my_handle = (*handle_counter)++;
    fprintf(bf, "qdisc add dev %s parent %x:%x handle %x: prio\n", 
            ifname, parent_major, parent_minor, my_handle);
            
    // prio automatically creates 3 bands (classes 1, 2, and 3)
    for (int i = 1; i <= 3; i++) {
        generate_classes(bf, ifname, my_handle, i, level - 1, handle_counter);
    }
}

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    delete_qdisc(ifindex);
    
    char batch_file[64];
    sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
    
    while (1) {
        int handle_counter = 2;
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup nested PRIO -> SFQ hierarchy to widen the destruction race window
        // This creates 1093 prio qdiscs and 2187 sfq qdiscs.
        fprintf(bf, "qdisc add dev %s root handle 1: prio\n", ifname);
        for (int i = 1; i <= 3; i++) {
            generate_classes(bf, ifname, 1, i, 6, &handle_counter);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to the SFQ qdiscs
        char pkt[64] = {0};
        struct ethhdr *eth = (struct ethhdr *)pkt;
        struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
        struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

        eth->h_proto = htons(ETH_P_IP);
        ip->version = 4;
        ip->ihl = 5;
        ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
        ip->protocol = IPPROTO_UDP;
        ip->saddr = htonl(0x01020304);
        ip->daddr = htonl(0x05060708);
        udp->len = htons(sizeof(struct udphdr));

        // Send packets with different priorities. The prio qdiscs will route them 
        // down different paths in the tree, ensuring multiple SFQ qdiscs have packets.
        for (int p = 0; p < 16; p++) {
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i); // Vary source port to change hash and avoid initial collisions
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // We sleep for 1 second minus the setup time, plus a random jitter up to 200ms
        // so that delete_qdisc overlaps perfectly with the timers firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 200000;
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getuid()); fclose(f); }
    f = fopen("/proc/self/setgroups", "w");
    if (f) { fprintf(f, "deny\n"); fclose(f); }
    f = fopen("/proc/self/gid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getgid()); fclose(f); }
    
    system("ip link set lo up");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```

640/5 2026/08/15 19:11 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 6753
							output: 22
							thoughts: 1348
						

Thoughts:
**My Thoughts on Reproducing the Bug**

Okay, so I've been wrestling with this reproducer based on the feedback, and it's become clear where the problem lies. The core issue is that the C program I was using to generate the netlink messages was sending an incompatible netlink message for creating an `htb` class, and the kernel is rejecting it with an `-ERANGE` error.

The feedback specifically points out that the `htb_policy` in `net/sched/sch_htb.c` defines the `TCA_HTB_PARMS` attribute's length to be `sizeof(struct tc_htb_opt)`. Now, the kernel I'm running expects this to be 44 bytes because a `prio` field was recently added. However, my reproducer was sending only 40 bytes for the attribute payload. Since 40 is less than the expected 44 (even accounting for the 4-byte header), the `validate_nla()` function within the kernel correctly flags this as an out-of-range error (`-ERANGE`).

Now, here's the twist: I initially thought the reproducer used `tc -batch` commands to set up the HTB hierarchy. I even looked back at the old code:

```c
        // 1. Setup HTB -> SFQ hierarchy with 5000 classes to widen the destruction race window
        fprintf(bf, "qdisc add dev %s root handle 1: htb default 1\n", ifname);
        for (int c = 1; c <= NUM_CLASSES; c++) {
            fprintf(bf, "class add dev %s parent 1: classid 1:%x htb rate 8bit\n", ifname, c);
            // CRITICAL: depth 1 forces sfq_enqueue to drop packets during rehash if they collide
            fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1 limit 127 depth 1\n", ifname, c, c + 1);
        }
```

If `tc -batch` was used, why is it failing with `-ERANGE`? This led me to realize a crucial point: the `tc` binary that's *actually running* in the environment might be older than the kernel. If the kernel is expecting 44 bytes for `struct tc_htb_opt` and the `tc` binary (from an older `iproute2` version) is only sending 40 bytes, that explains the `-ERANGE` error perfectly.

So, if the standard `tc` command is failing due to these version mismatches in netlink message structures, the most robust approach is to construct the netlink messages manually, or, perhaps more practically, switch to a different qdisc that doesn't have this specific structural issue or isn't as sensitive to `tc` binary versions.

This got me thinking: does it *have* to be `htb`? The bug itself lies within `qdisc_tree_reduce_backlog` in `net/sched/sch_api.c`. The fundamental requirement is to trigger a scenario where a classful qdisc can be unhashed *before* its children are destroyed. Any classful qdisc that allows for this kind of asynchronous unhashing should theoretically trigger the bug.

This opens up possibilities. Could I use `drr`? Or `prio`? Or `cbq` or `hfsc`?

I started looking into `drr`. A typical setup might involve:

```
qdisc add dev dummy0 root handle 1: drr
class add dev dummy0 parent 1: classid 1:1 drr
qdisc add dev dummy0 parent 1:1 handle 2: sfq perturb 1 limit 127 depth 1
```

But I had a nagging concern: does `tc` even support `drr` class creation without specifying a `quantum`? My understanding is that `quantum` is optional, so it *should* work, but I'm hesitant to invest time if it's prone to `tc` binary interpretation issues.

Then I considered `prio`. The `prio` qdisc seems more promising because it automatically creates classes. A basic setup would be:

```
qdisc add dev dummy0 root handle 1: prio bands 10
```

This command automatically sets up classes `1:1` through `1:10`. We could then attach `sfq` to these automatically created classes, like:

```
qdisc add dev dummy0 parent 1:1 handle 10: sfq perturb 1 limit 127 depth 1
```

This approach neatly sidesteps the problem of manually creating classes with `tc class add`, which is where the `-ERANGE` error was occurring due to the `struct tc_htb_opt` size mismatch.

However, a new question arises with `prio`: can I create the 5000 bands that I need to widen the race window? I need to check the limits for `prio`. I recall `TCA_PRIO_BANDS` being defined, but is it an `unsigned char` or an `int`? I need to look into `struct tc_prio_qopt` to confirm the exact type and its maximum value. If `prio` can support the required number of bands, this seems like a strong candidate for a more reliable reproducer.


641/5 2026/08/15 19:11 tool grepper
0m Args:
map[Expression:struct tc_prio_qopt]

Results:
map[Output:drivers/net/ethernet/mellanox/mlxsw/spectrum.h=1251=int mlxsw_sp_setup_tc_prio(struct mlxsw_sp_port *mlxsw_sp_port,
drivers/net/ethernet/mellanox/mlxsw/spectrum.h:1252:			   struct tc_prio_qopt_offload *p);
drivers/net/ethernet/mellanox/mlxsw/spectrum.h-1253-int mlxsw_sp_setup_tc_ets(struct mlxsw_sp_port *mlxsw_sp_port,
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c=1285=mlxsw_sp_qdisc_prio_check_params(struct mlxsw_sp_port *mlxsw_sp_port,
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1287-{
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:1288:	struct tc_prio_qopt_offload_params *p = params;
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1289-
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c=1404=mlxsw_sp_qdisc_prio_replace(struct mlxsw_sp_port *mlxsw_sp_port, u32 handle,
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1407-{
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:1408:	struct tc_prio_qopt_offload_params *p = params;
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1409-	unsigned int zeroes[TCQ_ETS_MAX_BANDS] = {0};
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c=1429=mlxsw_sp_qdisc_prio_unoffload(struct mlxsw_sp_port *mlxsw_sp_port,
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1432-{
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:1433:	struct tc_prio_qopt_offload_params *p = params;
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1434-
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c=1653=static int __mlxsw_sp_setup_tc_prio(struct mlxsw_sp_port *mlxsw_sp_port,
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:1654:				    struct tc_prio_qopt_offload *p)
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1655-{
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c=1686=int mlxsw_sp_setup_tc_prio(struct mlxsw_sp_port *mlxsw_sp_port,
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:1687:			   struct tc_prio_qopt_offload *p)
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1688-{
--
include/net/pkt_cls.h=924=struct tc_gred_vq_qopt_offload_params {
--
include/net/pkt_cls.h-932-	u32 probability;
include/net/pkt_cls.h:933:	/* Only need backlog, see struct tc_prio_qopt_offload_params */
include/net/pkt_cls.h-934-	u32 *backlog;
--
include/net/pkt_cls.h=962=enum tc_prio_command {
--
include/net/pkt_cls.h-968-
include/net/pkt_cls.h:969:struct tc_prio_qopt_offload_params {
include/net/pkt_cls.h-970-	int bands;
--
include/net/pkt_cls.h-977-
include/net/pkt_cls.h:978:struct tc_prio_qopt_offload_graft_params {
include/net/pkt_cls.h-979-	u8 band;
--
include/net/pkt_cls.h-982-
include/net/pkt_cls.h:983:struct tc_prio_qopt_offload {
include/net/pkt_cls.h-984-	enum tc_prio_command command;
--
include/net/pkt_cls.h-987-	union {
include/net/pkt_cls.h:988:		struct tc_prio_qopt_offload_params replace_params;
include/net/pkt_cls.h-989-		struct tc_qopt_offload_stats stats;
include/net/pkt_cls.h:990:		struct tc_prio_qopt_offload_graft_params graft_params;
include/net/pkt_cls.h-991-	};
--
include/uapi/linux/pkt_sched.h=139=struct tc_skbprio_qopt {
--
include/uapi/linux/pkt_sched.h-147-
include/uapi/linux/pkt_sched.h:148:struct tc_prio_qopt {
include/uapi/linux/pkt_sched.h-149-	int	bands;			/* Number of bands */
--
net/sched/sch_fq.c=982=static const struct nla_policy fq_policy[TCA_FQ_MAX + 1] = {
--
net/sched/sch_fq.c-999-	[TCA_FQ_HORIZON_DROP]		= { .type = NLA_U8 },
net/sched/sch_fq.c:1000:	[TCA_FQ_PRIOMAP]		= NLA_POLICY_EXACT_LEN(sizeof(struct tc_prio_qopt)),
net/sched/sch_fq.c-1001-	[TCA_FQ_WEIGHTS]		= NLA_POLICY_EXACT_LEN(FQ_BANDS * sizeof(s32)),
--
net/sched/sch_fq.c=1048=static int fq_load_priomap(struct fq_sched_data *q,
--
net/sched/sch_fq.c-1051-{
net/sched/sch_fq.c:1052:	const struct tc_prio_qopt *map = nla_data(attr);
net/sched/sch_fq.c-1053-	int i;
--
net/sched/sch_fq.c=1267=static int fq_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_fq.c-1269-	struct fq_sched_data *q = qdisc_priv(sch);
net/sched/sch_fq.c:1270:	struct tc_prio_qopt prio = {
net/sched/sch_fq.c-1271-		.bands = FQ_BANDS,
--
net/sched/sch_generic.c=889=static int pfifo_fast_dump(struct Qdisc *qdisc, struct sk_buff *skb)
net/sched/sch_generic.c-890-{
net/sched/sch_generic.c:891:	struct tc_prio_qopt opt = { .bands = PFIFO_FAST_BANDS };
net/sched/sch_generic.c-892-
--
net/sched/sch_prio.c=131=prio_reset(struct Qdisc *sch)
--
net/sched/sch_prio.c-139-
net/sched/sch_prio.c:140:static int prio_offload(struct Qdisc *sch, struct tc_prio_qopt *qopt)
net/sched/sch_prio.c-141-{
net/sched/sch_prio.c-142-	struct net_device *dev = qdisc_dev(sch);
net/sched/sch_prio.c:143:	struct tc_prio_qopt_offload opt = {
net/sched/sch_prio.c-144-		.handle = sch->handle,
--
net/sched/sch_prio.c=176=static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_prio.c-181-	int oldbands = q->bands, i;
net/sched/sch_prio.c:182:	struct tc_prio_qopt *qopt;
net/sched/sch_prio.c-183-
--
net/sched/sch_prio.c=245=static int prio_dump_offload(struct Qdisc *sch)
net/sched/sch_prio.c-246-{
net/sched/sch_prio.c:247:	struct tc_prio_qopt_offload hw_stats = {
net/sched/sch_prio.c-248-		.command = TC_PRIO_STATS,
--
net/sched/sch_prio.c=262=static int prio_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_prio.c-265-	unsigned char *b = skb_tail_pointer(skb);
net/sched/sch_prio.c:266:	struct tc_prio_qopt opt;
net/sched/sch_prio.c-267-	int err;
--
net/sched/sch_prio.c=286=static int prio_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
--
net/sched/sch_prio.c-289-	struct prio_sched_data *q = qdisc_priv(sch);
net/sched/sch_prio.c:290:	struct tc_prio_qopt_offload graft_offload;
net/sched/sch_prio.c-291-	unsigned long band = arg - 1;
--
tools/include/uapi/linux/pkt_sched.h=138=struct tc_skbprio_qopt {
--
tools/include/uapi/linux/pkt_sched.h-146-
tools/include/uapi/linux/pkt_sched.h:147:struct tc_prio_qopt {
tools/include/uapi/linux/pkt_sched.h-148-	int	bands;			/* Number of bands */
]

642/5 2026/08/15 19:11 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 10937
							output: 38
							thoughts: 71
						

Thoughts:
**A Deep Dive into Prio Queueing Band Limitations**

My initial thought upon encountering `struct tc_prio_qopt` and seeing its `bands` member declared as a simple `int` was one of potential concern. My expertise immediately flags a discrepancy. It seems too broad, too unconstrained for a parameter that, in practice, has a well-defined, albeit perhaps not immediately obvious, upper limit. I know that the `prio` queueing discipline (qdisc) isn't designed to handle an arbitrary number of bands. There's a hardcoded limit, a ceiling that dictates the maximum number of priority bands it can effectively manage. I quickly recall that this limit is defined by `TCQ_PRIO_BANDS`, a constant I've worked with before. To confirm my suspicion and understand the exact implementation details, my next step is to pivot directly to the source code, specifically `net/sched/sch_prio.c`, and examine the `prio_tune` function. This is where the actual validation and configuration logic for the `prio` qdisc resides, and I anticipate finding the explicit check that enforces the `TCQ_PRIO_BANDS` limit, thus clarifying why `bands` is defined as `int` but effectively constrained.


643/5 2026/08/15 19:11 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_prio.c Name:prio_tune]

Results:
map[SourceCode: 176:	static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
 177:			     struct netlink_ext_ack *extack)
 178:	{
 179:		struct prio_sched_data *q = qdisc_priv(sch);
 180:		struct Qdisc *queues[TCQ_PRIO_BANDS];
 181:		int oldbands = q->bands, i;
 182:		struct tc_prio_qopt *qopt;
 183:	
 184:		if (nla_len(opt) < sizeof(*qopt))
 185:			return -EINVAL;
 186:		qopt = nla_data(opt);
 187:	
 188:		if (qopt->bands > TCQ_PRIO_BANDS || qopt->bands < TCQ_MIN_PRIO_BANDS)
 189:			return -EINVAL;
 190:	
 191:		for (i = 0; i <= TC_PRIO_MAX; i++) {
 192:			if (qopt->priomap[i] >= qopt->bands)
 193:				return -EINVAL;
 194:		}
 195:	
 196:		/* Before commit, make sure we can allocate all new qdiscs */
 197:		for (i = oldbands; i < qopt->bands; i++) {
 198:			queues[i] = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
 199:						      TC_H_MAKE(sch->handle, i + 1),
 200:						      extack);
 201:			if (!queues[i]) {
 202:				while (i > oldbands)
 203:					qdisc_put(queues[--i]);
 204:				return -ENOMEM;
 205:			}
 206:		}
 207:	
 208:		prio_offload(sch, qopt);
 209:		sch_tree_lock(sch);
 210:		q->bands = qopt->bands;
 211:		memcpy(q->prio2band, qopt->priomap, TC_PRIO_MAX+1);
 212:	
 213:		for (i = q->bands; i < oldbands; i++)
 214:			qdisc_purge_queue(q->queues[i]);
 215:	
 216:		for (i = oldbands; i < q->bands; i++) {
 217:			q->queues[i] = queues[i];
 218:			if (q->queues[i] != &noop_qdisc)
 219:				qdisc_hash_add(q->queues[i], true);
 220:		}
 221:	
 222:		sch_tree_unlock(sch);
 223:	
 224:		for (i = q->bands; i < oldbands; i++)
 225:			qdisc_put(q->queues[i]);
 226:		return 0;
 227:	}
 SourceFile:net/sched/sch_prio.c]

644/5 2026/08/15 19:11 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 11918
							output: 40
							thoughts: 330
						

Thoughts:
**My Thought Process Regarding the Race Condition and Qdisc Selection**

My current focus is on a race condition that seems to manifest between the destruction of a parent queuing discipline (qdisc) and the destruction of its child timers. Specifically, I'm examining the sequence of events during `htb_destroy` (or `prio_destroy`) where the parent qdisc is being unhashed, and `sfq_destroy` where child timers are being deleted.

I initially considered using `prio` as the parent qdisc. My first thought was whether its limitation of supporting only 16 bands would be sufficient to trigger this race condition. Upon further investigation into the `prio_destroy` function, I noticed that it iterates through its `bands` and calls `qdisc_put` on each child. My understanding is that `qdisc_put` itself ultimately invokes `qdisc_destroy`, and for `sfq` (Simple Fair Queuing), `qdisc_destroy` calls `sfq_destroy`.

This revealed a crucial detail: the race window likely occurs *after* the parent qdisc is unhashed (via `qdisc_hash_del` within `qdisc_destroy` for the parent) and *before* the children are put back (via `qdisc_put`). If `prio` only has 16 children, this window of opportunity for the race to occur seems quite small.

This observation led me to contrast `prio` with `htb` (Hierarchical Token Bucket). With `htb`, I can create a large number of classes – potentially up to 5000. This means `htb_destroy` would have to iterate through all 5000 of these classes, destroying each one. Such an extensive iteration would naturally take a significant amount of time, thereby widening the race window considerably. This makes `htb` a much more promising candidate for reliably triggering and observing the race condition.

Therefore, my next line of inquiry is to explore other qdiscs that also support a large number of classes, similar to `htb`. My immediate thought turns to `drr` (Deficit Round Robin). I need to examine its internal workings, specifically functions like `drr_tune` and `drr_change_class`, to ascertain how it manages classes and whether it presents a similar opportunity for a large number of children that would extend the destruction process and thus, the race window.


645/5 2026/08/15 19:11 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_drr.c Name:drr_change_class]

Results:
map[SourceCode:  58:	static int drr_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
  59:				    struct nlattr **tca, unsigned long *arg,
  60:				    struct netlink_ext_ack *extack)
  61:	{
  62:		struct drr_sched *q = qdisc_priv(sch);
  63:		struct drr_class *cl = (struct drr_class *)*arg;
  64:		struct nlattr *opt = tca[TCA_OPTIONS];
  65:		struct nlattr *tb[TCA_DRR_MAX + 1];
  66:		u32 quantum;
  67:		int err;
  68:	
  69:		if (!opt) {
  70:			NL_SET_ERR_MSG(extack, "DRR options are required for this operation");
  71:			return -EINVAL;
  72:		}
  73:	
  74:		err = nla_parse_nested_deprecated(tb, TCA_DRR_MAX, opt, drr_policy,
  75:						  extack);
  76:		if (err < 0)
  77:			return err;
  78:	
  79:		if (tb[TCA_DRR_QUANTUM]) {
  80:			quantum = nla_get_u32(tb[TCA_DRR_QUANTUM]);
  81:			if (quantum == 0) {
  82:				NL_SET_ERR_MSG(extack, "Specified DRR quantum cannot be zero");
  83:				return -EINVAL;
  84:			}
  85:		} else
  86:			quantum = psched_mtu(qdisc_dev(sch));
  87:	
  88:		if (cl != NULL) {
  89:			if (tca[TCA_RATE]) {
  90:				err = gen_replace_estimator(&cl->bstats, NULL,
  91:							    &cl->rate_est,
  92:							    NULL, true,
  93:							    tca[TCA_RATE]);
  94:				if (err) {
  95:					NL_SET_ERR_MSG(extack, "Failed to replace estimator");
  96:					return err;
  97:				}
  98:			}
  99:	
 100:			if (tb[TCA_DRR_QUANTUM])
 101:				WRITE_ONCE(cl->quantum, quantum);
 102:	
 103:			return 0;
 104:		}
 105:	
 106:		cl = kzalloc_obj(struct drr_class);
 107:		if (cl == NULL)
 108:			return -ENOBUFS;
 109:	
 110:		gnet_stats_basic_sync_init(&cl->bstats);
 111:		INIT_LIST_HEAD(&cl->alist);
 112:		cl->common.classid = classid;
 113:		cl->quantum	   = quantum;
 114:		cl->qdisc	   = qdisc_create_dflt(sch->dev_queue,
 115:						       &pfifo_qdisc_ops, classid,
 116:						       NULL);
 117:		if (cl->qdisc == NULL)
 118:			cl->qdisc = &noop_qdisc;
 119:		else
 120:			qdisc_hash_add(cl->qdisc, true);
 121:	
 122:		if (tca[TCA_RATE]) {
 123:			err = gen_replace_estimator(&cl->bstats, NULL, &cl->rate_est,
 124:						    NULL, true, tca[TCA_RATE]);
 125:			if (err) {
 126:				NL_SET_ERR_MSG(extack, "Failed to replace estimator");
 127:				qdisc_put(cl->qdisc);
 128:				kfree(cl);
 129:				return err;
 130:			}
 131:		}
 132:	
 133:		sch_tree_lock(sch);
 134:		qdisc_class_hash_insert(&q->clhash, &cl->common);
 135:		sch_tree_unlock(sch);
 136:	
 137:		qdisc_class_hash_grow(sch, &q->clhash);
 138:	
 139:		*arg = (unsigned long)cl;
 140:		return 0;
 141:	}
 SourceFile:net/sched/sch_drr.c]

646/5 2026/08/15 19:11 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 13538
							output: 41
							thoughts: 452
						

Thoughts:
**My Thought Process Regarding DRR Class Configuration**

Initially, I'm wrestling with the dependency of the `drr` (Deficit Round Robin) qdisc on `TCA_OPTIONS`. I recall that `TCA_OPTIONS` *can* be empty, specifically when `TCA_DRR_QUANTUM` isn't provided. This leads me to examine the `drr_policy` definition for the `TCA_DRR_QUANTUM` attribute, which confirms its type as `NLA_U32`. My immediate thought is: "Can I simply issue `tc class add dev dummy0 parent 1: classid 1:1 drr` and have it work?"

This naturally prompts a deeper dive: "What exactly does the `tc` command send in terms of `TCA_OPTIONS` when no specific options are given for `drr`? Does it send an empty `TCA_OPTIONS` attribute, or does it omit it entirely?" I suspect the latter might be the case, and if `tc` doesn't send `TCA_OPTIONS` at all, I anticipate `drr_change_class` would return `-EINVAL` with the error message "DRR options are required for this operation." However, I also consider that the `tc` command might implicitly send an empty `TCA_OPTIONS` or a default quantum value. To resolve this uncertainty, I decide I need to scrutinize the `tc` source code specifically for `drr`.

As I delve further, a more robust approach strikes me: instead of relying on the `tc` binary and its potentially version-dependent behavior, I realize I can construct the necessary netlink messages directly in C. This seems like a far more reliable method. Then, I have a moment of consideration: "Is manually constructing netlink messages for 5000 classes really that much work? It's straightforward." My plan solidifies: I need to send `RTM_NEWQDISC` and `RTM_NEWTCLASS` messages. I decide to implement a helper function to streamline the process of sending these `RTM_NEWQDISC` and `RTM_NEWTCLASS` messages.

Refining my understanding of `drr`'s `TCA_OPTIONS`, I recall that for `drr`, `TCA_OPTIONS` is simply a nested attribute. This contrasts with other qdiscs, like `htb` (Hierarchical Token Bucket), where `TCA_OPTIONS` contains more specific sub-attributes such as `TCA_HTB_INIT` and `TCA_HTB_PARMS`. This realization reinforces that sticking with the simpler `drr` qdisc configuration is the way to go for my current task. My next step is to thoroughly examine the `drr` qdisc creation process within the netlink interface.


647/5 2026/08/15 19:11 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_drr.c Name:drr_init_qdisc]

Results:
map[SourceCode: 411:	static int drr_init_qdisc(struct Qdisc *sch, struct nlattr *opt,
 412:				  struct netlink_ext_ack *extack)
 413:	{
 414:		struct drr_sched *q = qdisc_priv(sch);
 415:		int err;
 416:	
 417:		err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
 418:		if (err)
 419:			return err;
 420:		err = qdisc_class_hash_init(&q->clhash);
 421:		if (err < 0)
 422:			return err;
 423:		INIT_LIST_HEAD(&q->active);
 424:		return 0;
 425:	}
 SourceFile:net/sched/sch_drr.c]

648/5 2026/08/15 19:11 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 14275
							output: 41
							thoughts: 364
						

Thoughts:
**My Thought Process Regarding DRR Qdisc Configuration**

Right, so I've been diving into the specifics of configuring the DRR (Deficit Round Robin) queueing discipline, and it's been a bit of a journey. My initial thought was around `drr_init_qdisc`, and I noticed it doesn't actually process any `opt` arguments during initialization. This is interesting because it means that a command like `qdisc add dev dummy0 root handle 1: drr` should work perfectly fine without needing any specific options.

Following on from that, I turned my attention to `drr_change_class`. This function, unlike the initialization, *does* require `TCA_OPTIONS`. So, the question became: how do I construct these `TCA_OPTIONS` for DRR? My investigation revealed that it essentially needs a nested attribute, also labeled `TCA_OPTIONS`, which can, quite conveniently, be empty. I double-checked this, recalling that `nla_parse_nested_deprecated` has this capability of handling empty nested attributes.

This led me to wonder about the feasibility of using DRR with `tc -batch`. If `tc` itself doesn't have any underlying issues with DRR's option handling, then `tc -batch` should be a straightforward way to manage it. I also considered the stability of DRR's options over time. It seems DRR's options haven't seen significant changes for quite a while, which is reassuring. To be absolutely certain, I decided to delve into the `iproute2` source code, specifically looking at how `tc` handles DRR.

Ultimately, my digging confirmed that using `tc -batch` with DRR is indeed a viable approach. I can envision using it like this:

```
qdisc add dev dummy0 root handle 1: drr
class add dev dummy0 parent 1: classid 1:1 drr
```

However, I still wanted to verify if `tc class add ... drr` would work without *any* arguments. If it turns out that it doesn't, the fallback is simple: I can just provide the `quantum` parameter, which is a common and often necessary setting. So, the command would look more like:

```
class add dev dummy0 parent 1: classid 1:1 drr quantum 1500
```

To solidify my understanding and to test these scenarios, I plan on writing a small C program that utilizes `tc -batch` with DRR. I also had a quick question pop up: is DRR a classful discipline? Yes, it is. And another point to keep in mind is its behavior during destruction: does `drr` unhash its children before it's destroyed? I'll need to check the `drr_destroy_qdisc` function to be sure about that final detail.


649/5 2026/08/15 19:11 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_drr.c Name:drr_destroy_qdisc]

Results:
map[SourceCode: 442:	static void drr_destroy_qdisc(struct Qdisc *sch)
 443:	{
 444:		struct drr_sched *q = qdisc_priv(sch);
 445:		struct drr_class *cl;
 446:		struct hlist_node *next;
 447:		unsigned int i;
 448:	
 449:		tcf_block_put(q->block);
 450:	
 451:		for (i = 0; i < q->clhash.hashsize; i++) {
 452:			hlist_for_each_entry_safe(cl, next, &q->clhash.hash[i],
 453:						  common.hnode)
 454:				drr_destroy_class(sch, cl);
 455:		}
 456:		qdisc_class_hash_destroy(&q->clhash);
 457:	}
 SourceFile:net/sched/sch_drr.c]

650/5 2026/08/15 19:11 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 14946
							output: 37
							thoughts: 320
						

Thoughts:
**My Thought Process Regarding `drr_destroy_qdisc` and Related Functions**

Okay, so when `drr_destroy_qdisc` is invoked, I understand it's designed to iterate through all the constituent classes within the DRR scheduler and, for each one, it dutifully calls `drr_destroy_class`. Looking at the implementation of `drr_destroy_class`, it's quite straightforward: it first calls `qdisc_put` on the child qdisc associated with the class, then it cleans up the rate estimator using `gen_kill_estimator`, and finally, it frees the memory allocated for the `drr_class` structure itself.

Now, the `qdisc_put` call is where things get interesting. My understanding is that `qdisc_put` ultimately leads to `qdisc_destroy`. Within `qdisc_destroy`, I'm expecting to see the destruction of the child qdisc, which in this context means calling `sfq_destroy` (presumably, since SFQ is often the backend for DRR classes) and also handling the deletion of any associated timers.

A point of slight confusion that I'm clarifying for myself is the exact timing of the parent `drr` qdisc being unhashed. My current understanding is that this unhashing operation, which is part of the generic `qdisc_destroy` mechanism, actually occurs *before* the `drr_destroy_qdisc` function itself is executed. This makes sense from a lifecycle perspective – the parent needs to be out of the way before its children are fully dismantled. I'm just double-checking that `qdisc_destroy` is indeed the function responsible for that unhashing, and I'm going to verify this by looking at the `qdisc_destroy` implementation in `net/sched/sch_generic.c`. My initial thought was that `qdisc_destroy` might be calling `qdisc_free_cb`, and while that's a possibility, I need to confirm the unhashing is handled there and not by some other function.


651/5 2026/08/15 19:11 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_destroy]

Results:
map[SourceCode:1133:	void qdisc_destroy(struct Qdisc *qdisc)
1134:	{
1135:		if (qdisc->flags & TCQ_F_BUILTIN)
1136:			return;
1137:	
1138:		__qdisc_destroy(qdisc);
1139:	}
 SourceFile:net/sched/sch_generic.c]

652/5 2026/08/15 19:11 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15406
							output: 38
							thoughts: 11
						

Thoughts:
**My Thought Process Regarding `__qdisc_destroy`**

Alright, so my immediate instinct here is to delve into the mechanics of `__qdisc_destroy`. I need to understand precisely what this function is doing when it's called. My core concern is about resource management and potential race conditions. When a queue discipline (qdisc) is being destroyed, I'm thinking about what objects or data structures are associated with it and how they're being deallocated or cleaned up.

Specifically, I'm wondering if `__qdisc_destroy` handles the release of any underlying buffer memory, hash tables, or other control blocks that the qdisc might have allocated during its lifetime. Is there a possibility of a leak if something isn't properly freed?

More critically, I'm concerned about concurrency. If this function can be called from multiple contexts simultaneously, or if other operations are still actively using the qdisc while it's being destroyed, I need to be absolutely sure there's proper locking or synchronization in place. I'm envisioning scenarios where, for instance, a packet might still be in transit or an interrupt handler might be attempting to access the qdisc's internal state. The `__qdisc_destroy` function must gracefully handle these situations, ensuring no data is corrupted or access violations occur.

So, in essence, my mental checklist for examining `__qdisc_destroy` revolves around:

*   **Deallocation:** Is *everything* associated with the qdisc being freed?
*   **State Management:** Are there any lingering references or active operations that need to be accounted for before destruction?
*   **Concurrency Safety:** How does this function behave in a multi-threaded or interrupt-driven environment? Are there locks, atomic operations, or other mechanisms to prevent race conditions and ensure data integrity?


653/5 2026/08/15 19:11 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

654/5 2026/08/15 19:11 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15837
							output: 41
							thoughts: 1099
						

Thoughts:
**The Race Condition Unveiled: A Journey Through Kernel Networking**

Okay, so I've been digging into this race condition, and it all seems to stem from the interaction between qdisc deletion and timer events. The core of the problem appears to be this: when a queueing discipline (qdisc) is being destroyed, specifically when `qdisc_hash_del(qdisc)` is called followed by `ops->destroy(qdisc)`, there's a critical window of vulnerability.

For the `drr` (Deficit Round Robin) qdisc, its `ops->destroy` function is `drr_destroy_qdisc`. What this function does is iterate through all the classes associated with the `drr` qdisc and calls `qdisc_put` on each of their children. This `qdisc_put` operation essentially decrements a reference count, and if it reaches zero, it triggers the destruction of that child qdisc.

So, the race window is precisely the time it takes for `drr_destroy_qdisc` to complete its execution. If I were to create a significant number of classes within `drr` – say, 5000 of them – `drr_destroy_qdisc` would naturally take a non-trivial amount of time to run through all those children and put them.

Now, imagine this: while `drr_destroy_qdisc` is still chugging along, a timer event, specifically the `sfq` (Stochastic Fairness Queuing) timer, fires. This timer's callback, `sfq_timer`, will eventually call `qdisc_tree_reduce_backlog`. This function, in turn, needs to find the parent `drr` qdisc. However, because `drr` is *already in the process of being unhashed* (due to the ongoing `qdisc_hash_del`), the lookup function, `qdisc_lookup_rcu`, will fail to find the parent qdisc and return `NULL`. This leads directly to the `WARN_ON_ONCE` condition I've been observing, indicating a serious issue.

My next step was to confirm if `tc` (traffic control) actually supports creating `drr` classes. A quick mental check, or a look at the `tc` man pages, confirms that yes, you can do things like `tc class add dev dummy0 parent 1: classid 1:1 drr` or even specify a `quantum`. This confirms `drr` is a viable candidate for this exploit.

I considered `htb` (Hierarchical Token Bucket) initially, but there was a potential issue with `tc` struct size mismatches when using netlink messages directly. So, switching to `drr` seemed like a cleaner path to avoid that specific problem.

Then I paused and thought, "Are there other qdiscs I could use?" I mentally ran through a few:
*   `cbq` (Class Based Queuing): This is deprecated and might not even be compiled into the kernel. Not ideal.
*   `hfsc` (Hierarchical Fair Service Curve): This is notoriously complex, and I want to keep the setup as simple as possible for reliability.

`drr` stands out as simple and generally enabled. I'd usually check the kernel config for `CONFIG_NET_SCH_DRR`, but given I can't directly access it, I'll assume it's enabled as it's a standard scheduler. If `drr` *weren't* available, what then?

The `prio` (priority) qdisc is almost always enabled. The catch is that `prio` only supports 16 bands by default. Could 16 bands be enough to trigger the race? The `prio_destroy` function would perform 16 `qdisc_put` operations. The window would be small, but a precisely timed hit *might* work.

But then I had an idea: what if I *nest* `prio` qdiscs? I could create a hierarchy like this:
`qdisc add dev dummy0 root handle 1: prio bands 16`
And then, for each band, add another `prio` qdisc:
`qdisc add dev dummy0 parent 1:1 handle 11: prio bands 16`
And so on. This would build a tree. The `qdisc_tree_reduce_backlog` function walks up the tree. If I nest `prio` qdiscs deeply, `prio_destroy` would call `qdisc_put` on its children, which in turn would call `prio_destroy` on *their* children, creating a recursive destruction process. This would definitely take a significant amount of time, widening the race window considerably. I confirmed that nesting `prio` qdiscs is indeed possible.

However, the simplicity of `drr` still appeals to me. It's a single-level destruction process that's easier to reason about and potentially to trigger reliably. If `drr` isn't available, `tc` commands would likely fail early, which is a good indicator.

Let's go back to the `htb` issue. If I *had* to use `htb` and wanted to bypass the `tc` struct size problem, I could manually construct the netlink messages. For an `htb` class, I'd need to populate `TCA_OPTIONS` with `TCA_HTB_PARMS`. The kernel expects a specific size for `struct tc_htb_opt`. Instead of worrying about the exact fields, I could just send 44 bytes of zeros, assuming that the kernel would correctly interpret that as a valid, albeit default, `tc_htb_opt` structure. I was just double-checking the exact size of `struct tc_htb_opt` in the kernel source to be sure. It looks like it has 10 fields of `__u32`, which would be 40 bytes. This manual netlink construction is a viable, albeit more intricate, alternative if `drr` proves unavailable.


655/5 2026/08/15 19:12 tool codesearch-definition-source
0m Args:
map[ContextFile:include/uapi/linux/pkt_sched.h Name:tc_htb_opt]

Results:
map[SourceCode: 409:	struct tc_htb_opt {
 410:		struct tc_ratespec 	rate;
 411:		struct tc_ratespec 	ceil;
 412:		__u32	buffer;
 413:		__u32	cbuffer;
 414:		__u32	quantum;
 415:		__u32	level;		/* out only */
 416:		__u32	prio;
 417:	};
 SourceFile:include/uapi/linux/pkt_sched.h]

656/5 2026/08/15 19:12 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 17123
							output: 40
							thoughts: 11
						

Thoughts:
**My Thought Process Regarding `struct tc_ratespec`**

As I delve into the intricacies of traffic control mechanisms within the kernel, my immediate instinct is to scrutinize the fundamental data structures that underpin these operations. My focus naturally gravitates towards `struct tc_ratespec`. I need to understand its composition and purpose in defining the parameters for traffic shaping and rate limiting.

Specifically, I'm looking to see how `tc_ratespec` encapsulates concepts like:

*   **The actual rate:** What fields are used to represent the desired transmission speed, likely in bits per second or bytes per second? Is it a single value, or are there components for things like peak rate, average rate, or committed information rate (CIR)?
*   **The burst size:** How is the permissible burstiness defined? Is there a field for a maximum burst, often expressed in bytes or bits, that allows for temporary deviations from the average rate? This is crucial for understanding how well a particular rate specification can handle transient traffic spikes.
*   **The interval:** Is there any notion of a time window or interval over which these rates and bursts are measured or averaged? This is important for understanding the granularity of the rate control.
*   **Quantum/Latency:** While often related to scheduling and queue management, I'm also curious if `tc_ratespec` might hint at or directly contain parameters influencing latency or the "quantum" of data that can be sent in a single burst, especially in contexts like token bucket algorithms.
*   **Units and Precision:** I need to ascertain the units of measurement (e.g., bits/sec, bytes/sec) and the level of precision supported by the fields within the structure. This is critical for avoiding misinterpretations and ensuring accurate configuration.
*   **Interdependencies:** How do these various fields interact? Is there a defined relationship between rate and burst size, or are they largely independent parameters that a user can configure?
*   **Evolution and History:** If this structure has evolved over kernel versions, I'm interested in any deprecations, additions, or significant changes that might have occurred, as this can shed light on evolving traffic control strategies.

Ultimately, by examining `struct tc_ratespec`, I aim to gain a concrete understanding of the building blocks used to define and enforce traffic control policies. This knowledge will be foundational for comprehending higher-level traffic control algorithms and their behavior.


657/5 2026/08/15 19:12 tool codesearch-definition-source
0m Args:
map[ContextFile:include/uapi/linux/pkt_sched.h Name:tc_ratespec]

Results:
map[SourceCode:  91:	struct tc_ratespec {
  92:		unsigned char	cell_log;
  93:		__u8		linklayer; /* lower 4 bits */
  94:		unsigned short	overhead;
  95:		short		cell_align;
  96:		unsigned short	mpu;
  97:		__u32		rate;
  98:	};
 SourceFile:include/uapi/linux/pkt_sched.h]

658/5 2026/08/15 19:12 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 17288
							output: 38
							thoughts: 132
						

Thoughts:
**My Internal Monologue on `struct tc_htb_opt` Sizing and Zero-Padding**

Right, let's break this down. I'm looking at the `struct tc_ratespec` definition. Counting the fields: a `u32` (4 bytes) for rate, another `u32` (4 bytes) for period, a `u16` (2 bytes) for the denominator, a `u16` (2 bytes) for the numerator, another `u16` (2 bytes) for the maximum rate, and finally a `u32` (4 bytes) for something else... wait, let me re-verify the common structure sizes. Ah, yes, typically `u32` is 4 bytes, `u16` is 2 bytes. So, `tc_ratespec`: 4 + 4 + 2 + 2 + 2 + 4 = 18 bytes. No, that doesn't feel right. Let me re-examine the typical layout or specific kernel definitions I'm working with.

Okay, *revisiting the specific definitions I have in mind*, it appears `tc_ratespec` might be more compact or padded in this context. Let me count again, assuming a standard alignment and size for common types. I see `u32` (4 bytes) for rate, `u32` for period, `u16` for denominator, `u16` for numerator, `u16` for max_rate, and... *another* `u32` for something. This is where the initial discrepancy might be. Let me confirm the exact size of each element as I'm interpreting it.

Ah, I see the confusion. My initial count of `tc_ratespec` as 12 bytes was based on a simplified mental model or a specific interpretation of the fields I'm recalling. Let me do a precise byte-by-byte count based on the *actual* structure definition I'm referencing:

*   `u32 rate`: 4 bytes
*   `u32 period`: 4 bytes
*   `u16\_\_pad`: 2 bytes (potential padding)
*   `u16\_\_pad`: 2 bytes (potential padding)
*   `u16 max_rate`: 2 bytes
*   `u16\_\_pad`: 2 bytes (potential padding)

This brings `tc_ratespec` to 4 + 4 + 2 + 2 + 2 + 2 = 16 bytes. Still not 12. Let me double-check the prompt's implied `tc_ratespec` size. The prompt states "1 + 1 + 2 + 2 + 2 + 4 = 12 bytes". This implies `u8` (1 byte) fields for the first two, then `u16` (2 bytes) for the next three, and `u32` (4 bytes) for the last. This is a *very* unusual layout for `tc_ratespec` in the kernel, which typically uses `u32` for rate and period. However, if I'm to strictly follow the prompt's derivation:

*   Field 1 (implied `u8`?): 1 byte
*   Field 2 (implied `u8`?): 1 byte
*   Field 3 (`u16`): 2 bytes
*   Field 4 (`u16`): 2 bytes
*   Field 5 (`u16`): 2 bytes
*   Field 6 (`u32`): 4 bytes

Total: 1 + 1 + 2 + 2 + 2 + 4 = 12 bytes. Okay, I'll accept this derived size for `tc_ratespec` *for the purpose of this thought process*, even though it deviates from standard kernel `tc_ratespec` definitions. My internal understanding must adapt to the context provided.

Now, moving to `struct tc_htb_opt`. It's composed of several fields, including two `tc_ratespec` structures (rate and ceil) and then some integer fields for buffer, cbuffer, quantum, level, and prio.

*   `tc_ratespec rate`: Based on the prompt's derivation, this is 12 bytes.
*   `tc_ratespec ceil`: Again, 12 bytes.
*   `u32 buffer`: 4 bytes (assuming standard `u32`).
*   `u32 cbuffer`: 4 bytes.
*   `u32 quantum`: 4 bytes.
*   `u32 level`: 4 bytes.
*   `u32 prio`: 4 bytes.

So, adding these up: 12 (rate) + 12 (ceil) + 4 (buffer) + 4 (cbuffer) + 4 (quantum) + 4 (level) + 4 (prio) = 44 bytes. Yes, this matches the prompt's calculation for `struct tc_htb_opt`. The calculation seems consistent now, given the initial `tc_ratespec` assumption.

This leads me to a crucial question, a practical implication of knowing the exact size: **Can I just send a buffer of 44 zero bytes and have it accepted?** If the `htb_change_class` function, which is likely responsible for processing these options, simply looks at the size of the provided buffer and expects it to match the structure's size, then a zero-filled buffer *might* be treated as a valid, albeit default, configuration. This is a common pattern in some API designs where default values are implied by zero initialization.

To answer this definitively, I need to examine the implementation of `htb_change_class`. I'll need to see how it handles the input buffer: does it perform any validation beyond size? Does it parse the contents and expect specific non-zero values for certain fields? Or does it rely on the size alone and then zero-initialize any fields it doesn't explicitly process, effectively accepting a zero buffer as a valid input? That's my next step – dive into the `htb_change_class` code.


659/5 2026/08/15 19:12 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_htb.c Name:htb_change_class]

Results:
map[SourceCode:1762:	static int htb_change_class(struct Qdisc *sch, u32 classid,
1763:				    u32 parentid, struct nlattr **tca,
1764:				    unsigned long *arg, struct netlink_ext_ack *extack)
1765:	{
1766:		int err = -EINVAL;
1767:		struct htb_sched *q = qdisc_priv(sch);
1768:		struct htb_class *cl = (struct htb_class *)*arg, *parent;
1769:		struct tc_htb_qopt_offload offload_opt;
1770:		struct nlattr *opt = tca[TCA_OPTIONS];
1771:		struct nlattr *tb[TCA_HTB_MAX + 1];
1772:		struct Qdisc *parent_qdisc = NULL;
1773:		struct netdev_queue *dev_queue;
1774:		struct tc_htb_opt *hopt;
1775:		u64 rate64, ceil64;
1776:		int warn = 0;
1777:	
1778:		/* extract all subattrs from opt attr */
1779:		if (!opt)
1780:			goto failure;
1781:	
1782:		err = nla_parse_nested_deprecated(tb, TCA_HTB_MAX, opt, htb_policy,
1783:						  extack);
1784:		if (err < 0)
1785:			goto failure;
1786:	
1787:		err = -EINVAL;
1788:		if (tb[TCA_HTB_PARMS] == NULL)
1789:			goto failure;
1790:	
1791:		parent = parentid == TC_H_ROOT ? NULL : htb_find(parentid, sch);
1792:	
1793:		hopt = nla_data(tb[TCA_HTB_PARMS]);
1794:		if (!hopt->rate.rate || !hopt->ceil.rate)
1795:			goto failure;
1796:	
1797:		if (q->offload) {
1798:			/* Options not supported by the offload. */
1799:			if (hopt->rate.overhead || hopt->ceil.overhead) {
1800:				NL_SET_ERR_MSG(extack, "HTB offload doesn't support the overhead parameter");
1801:				goto failure;
1802:			}
1803:			if (hopt->rate.mpu || hopt->ceil.mpu) {
1804:				NL_SET_ERR_MSG(extack, "HTB offload doesn't support the mpu parameter");
1805:				goto failure;
1806:			}
1807:		}
1808:	
1809:		/* Keeping backward compatible with rate_table based iproute2 tc */
1810:		if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE)
1811:			qdisc_put_rtab(qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB],
1812:						      NULL));
1813:	
1814:		if (hopt->ceil.linklayer == TC_LINKLAYER_UNAWARE)
1815:			qdisc_put_rtab(qdisc_get_rtab(&hopt->ceil, tb[TCA_HTB_CTAB],
1816:						      NULL));
1817:	
1818:		rate64 = nla_get_u64_default(tb[TCA_HTB_RATE64], 0);
1819:		ceil64 = nla_get_u64_default(tb[TCA_HTB_CEIL64], 0);
1820:	
1821:		if (!cl) {		/* new class */
1822:			struct net_device *dev = qdisc_dev(sch);
1823:			struct Qdisc *new_q, *old_q;
1824:			int prio;
1825:			struct {
1826:				struct nlattr		nla;
1827:				struct gnet_estimator	opt;
1828:			} est = {
1829:				.nla = {
1830:					.nla_len	= nla_attr_size(sizeof(est.opt)),
1831:					.nla_type	= TCA_RATE,
1832:				},
1833:				.opt = {
1834:					/* 4s interval, 16s averaging constant */
1835:					.interval	= 2,
1836:					.ewma_log	= 2,
1837:				},
1838:			};
1839:	
1840:			/* check for valid classid */
1841:			if (!classid || TC_H_MAJ(classid ^ sch->handle) ||
1842:			    htb_find(classid, sch))
1843:				goto failure;
1844:	
1845:			/* check maximal depth */
1846:			if (parent && parent->parent && parent->parent->level < 2) {
1847:				NL_SET_ERR_MSG_MOD(extack, "tree is too deep");
1848:				goto failure;
1849:			}
1850:			err = -ENOBUFS;
1851:			cl = kzalloc_obj(*cl);
1852:			if (!cl)
1853:				goto failure;
1854:	
1855:			gnet_stats_basic_sync_init(&cl->bstats);
1856:			gnet_stats_basic_sync_init(&cl->bstats_bias);
1857:	
1858:			err = tcf_block_get(&cl->block, &cl->filter_list, sch, extack);
1859:			if (err) {
1860:				kfree(cl);
1861:				goto failure;
1862:			}
1863:			if (htb_rate_est || tca[TCA_RATE]) {
1864:				err = gen_new_estimator(&cl->bstats, NULL,
1865:							&cl->rate_est,
1866:							NULL,
1867:							true,
1868:							tca[TCA_RATE] ? : &est.nla);
1869:				if (err)
1870:					goto err_block_put;
1871:			}
1872:	
1873:			cl->children = 0;
1874:			RB_CLEAR_NODE(&cl->pq_node);
1875:	
1876:			for (prio = 0; prio < TC_HTB_NUMPRIO; prio++)
1877:				RB_CLEAR_NODE(&cl->node[prio]);
1878:	
1879:			cl->common.classid = classid;
1880:	
1881:			/* Make sure nothing interrupts us in between of two
1882:			 * ndo_setup_tc calls.
1883:			 */
1884:			ASSERT_RTNL();
1885:	
1886:			/* create leaf qdisc early because it uses kmalloc(GFP_KERNEL)
1887:			 * so that can't be used inside of sch_tree_lock
1888:			 * -- thanks to Karlis Peisenieks
1889:			 */
1890:			if (!q->offload) {
1891:				dev_queue = sch->dev_queue;
1892:			} else if (!(parent && !parent->level)) {
1893:				/* Assign a dev_queue to this classid. */
1894:				offload_opt = (struct tc_htb_qopt_offload) {
1895:					.command = TC_HTB_LEAF_ALLOC_QUEUE,
1896:					.classid = cl->common.classid,
1897:					.parent_classid = parent ?
1898:						TC_H_MIN(parent->common.classid) :
1899:						TC_HTB_CLASSID_ROOT,
1900:					.rate = max_t(u64, hopt->rate.rate, rate64),
1901:					.ceil = max_t(u64, hopt->ceil.rate, ceil64),
1902:					.prio = hopt->prio,
1903:					.quantum = hopt->quantum,
1904:					.extack = extack,
1905:				};
1906:				err = htb_offload(dev, &offload_opt);
1907:				if (err) {
1908:					NL_SET_ERR_MSG_WEAK(extack,
1909:							    "Failed to offload TC_HTB_LEAF_ALLOC_QUEUE");
1910:					goto err_kill_estimator;
1911:				}
1912:				dev_queue = netdev_get_tx_queue(dev, offload_opt.qid);
1913:			} else { /* First child. */
1914:				dev_queue = htb_offload_get_queue(parent);
1915:				old_q = htb_graft_helper(dev_queue, NULL);
1916:				WARN_ON(old_q != parent->leaf.q);
1917:				offload_opt = (struct tc_htb_qopt_offload) {
1918:					.command = TC_HTB_LEAF_TO_INNER,
1919:					.classid = cl->common.classid,
1920:					.parent_classid =
1921:						TC_H_MIN(parent->common.classid),
1922:					.rate = max_t(u64, hopt->rate.rate, rate64),
1923:					.ceil = max_t(u64, hopt->ceil.rate, ceil64),
1924:					.prio = hopt->prio,
1925:					.quantum = hopt->quantum,
1926:					.extack = extack,
1927:				};
1928:				err = htb_offload(dev, &offload_opt);
1929:				if (err) {
1930:					NL_SET_ERR_MSG_WEAK(extack,
1931:							    "Failed to offload TC_HTB_LEAF_TO_INNER");
1932:					htb_graft_helper(dev_queue, old_q);
1933:					goto err_kill_estimator;
1934:				}
1935:				_bstats_update(&parent->bstats_bias,
1936:					       u64_stats_read(&old_q->bstats.bytes),
1937:					       u64_stats_read(&old_q->bstats.packets));
1938:				qdisc_put(old_q);
1939:			}
1940:			new_q = qdisc_create_dflt(dev_queue, &pfifo_qdisc_ops,
1941:						  classid, NULL);
1942:			if (q->offload) {
1943:				/* One ref for cl->leaf.q, the other for dev_queue->qdisc. */
1944:				if (new_q)
1945:					qdisc_refcount_inc(new_q);
1946:				old_q = htb_graft_helper(dev_queue, new_q);
1947:				/* No qdisc_put needed. */
1948:				WARN_ON(!(old_q->flags & TCQ_F_BUILTIN));
1949:			}
1950:			sch_tree_lock(sch);
1951:			if (parent && !parent->level) {
1952:				/* turn parent into inner node */
1953:				qdisc_purge_queue(parent->leaf.q);
1954:				parent_qdisc = parent->leaf.q;
1955:				htb_deactivate(q, parent);
1956:	
1957:				/* remove from evt list because of level change */
1958:				if (parent->cmode != HTB_CAN_SEND) {
1959:					htb_safe_rb_erase(&parent->pq_node, &q->hlevel[0].wait_pq);
1960:					parent->cmode = HTB_CAN_SEND;
1961:				}
1962:				parent->level = (parent->parent ? parent->parent->level
1963:						 : TC_HTB_MAXDEPTH) - 1;
1964:				memset(&parent->inner, 0, sizeof(parent->inner));
1965:			}
1966:	
1967:			/* leaf (we) needs elementary qdisc */
1968:			cl->leaf.q = new_q ? new_q : &noop_qdisc;
1969:			if (q->offload)
1970:				cl->leaf.offload_queue = dev_queue;
1971:	
1972:			cl->parent = parent;
1973:	
1974:			/* set class to be in HTB_CAN_SEND state */
1975:			cl->tokens = PSCHED_TICKS2NS(hopt->buffer);
1976:			cl->ctokens = PSCHED_TICKS2NS(hopt->cbuffer);
1977:			cl->mbuffer = 60ULL * NSEC_PER_SEC;	/* 1min */
1978:			cl->t_c = ktime_get_ns();
1979:			cl->cmode = HTB_CAN_SEND;
1980:	
1981:			/* attach to the hash list and parent's family */
1982:			qdisc_class_hash_insert(&q->clhash, &cl->common);
1983:			if (parent)
1984:				parent->children++;
1985:			if (cl->leaf.q != &noop_qdisc)
1986:				qdisc_hash_add(cl->leaf.q, true);
1987:		} else {
1988:			if (tca[TCA_RATE]) {
1989:				err = gen_replace_estimator(&cl->bstats, NULL,
1990:							    &cl->rate_est,
1991:							    NULL,
1992:							    true,
1993:							    tca[TCA_RATE]);
1994:				if (err)
1995:					return err;
1996:			}
1997:	
1998:			if (q->offload) {
1999:				struct net_device *dev = qdisc_dev(sch);
2000:	
2001:				offload_opt = (struct tc_htb_qopt_offload) {
2002:					.command = TC_HTB_NODE_MODIFY,
2003:					.classid = cl->common.classid,
2004:					.rate = max_t(u64, hopt->rate.rate, rate64),
2005:					.ceil = max_t(u64, hopt->ceil.rate, ceil64),
2006:					.prio = hopt->prio,
2007:					.quantum = hopt->quantum,
2008:					.extack = extack,
2009:				};
2010:				err = htb_offload(dev, &offload_opt);
2011:				if (err)
2012:					/* Estimator was replaced, and rollback may fail
2013:					 * as well, so we don't try to recover it, and
2014:					 * the estimator won't work property with the
2015:					 * offload anyway, because bstats are updated
2016:					 * only when the stats are queried.
2017:					 */
2018:					return err;
2019:			}
2020:	
2021:			sch_tree_lock(sch);
2022:		}
2023:	
2024:		psched_ratecfg_precompute(&cl->rate, &hopt->rate, rate64);
2025:		psched_ratecfg_precompute(&cl->ceil, &hopt->ceil, ceil64);
2026:	
2027:		/* it used to be a nasty bug here, we have to check that node
2028:		 * is really leaf before changing cl->leaf !
2029:		 */
2030:		if (!cl->level) {
2031:			u64 quantum = cl->rate.rate_bytes_ps;
2032:	
2033:			do_div(quantum, q->rate2quantum);
2034:			cl->quantum = min_t(u64, quantum, INT_MAX);
2035:	
2036:			if (!hopt->quantum && cl->quantum < 1000) {
2037:				warn = -1;
2038:				cl->quantum = 1000;
2039:			}
2040:			if (!hopt->quantum && cl->quantum > 200000) {
2041:				warn = 1;
2042:				cl->quantum = 200000;
2043:			}
2044:			if (hopt->quantum)
2045:				cl->quantum = hopt->quantum;
2046:			if ((cl->prio = hopt->prio) >= TC_HTB_NUMPRIO)
2047:				cl->prio = TC_HTB_NUMPRIO - 1;
2048:		}
2049:	
2050:		cl->buffer = PSCHED_TICKS2NS(hopt->buffer);
2051:		cl->cbuffer = PSCHED_TICKS2NS(hopt->cbuffer);
2052:	
2053:		sch_tree_unlock(sch);
2054:		qdisc_put(parent_qdisc);
2055:	
2056:		if (warn)
2057:			NL_SET_ERR_MSG_FMT_MOD(extack,
2058:					       "quantum of class %X is %s. Consider r2q change.",
2059:					       cl->common.classid, (warn == -1 ? "small" : "big"));
2060:	
2061:		qdisc_class_hash_grow(sch, &q->clhash);
2062:	
2063:		*arg = (unsigned long)cl;
2064:		return 0;
2065:	
2066:	err_kill_estimator:
2067:		gen_kill_estimator(&cl->rate_est);
2068:	err_block_put:
2069:		tcf_block_put(cl->block);
2070:		kfree(cl);
2071:	failure:
2072:		return err;
2073:	}
 SourceFile:net/sched/sch_htb.c]

660/5 2026/08/15 19:12 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 22635
							output: 38
							thoughts: 1361
						

Thoughts:
**My Thought Process on Constructing a Netlink Message for DRR Class Creation**

I'm grappling with the specifics of creating a netlink message to add a new traffic class, specifically for the DRR (Deficit Round Robin) scheduler. My initial thought was centered around the `htb_change_class` function, which I realized has a critical prerequisite: it requires non-zero values for `hopt->rate.rate` and `hopt->ceil.rate`. This immediately told me I couldn't just pass zeros for these parameters; I'd need to provide some valid, non-zero rates.

However, my focus shifted when I recalled that DRR operates differently. I started re-examining the `drr_change_class` function to understand its requirements. My understanding was that DRR might not necessitate any options at all.

Then I hit a crucial detail: `drr_change_class` *does* require an `opt` parameter, which corresponds to `TCA_OPTIONS`. This seemed like a contradiction to my previous thought that DRR might not need options. But then I delved deeper into how `nla_parse_nested_deprecated` handles this. I realized that if `opt` is provided as an *empty* nested attribute (meaning it has the correct type, `TCA_OPTIONS`, and length, but contains no actual nested attributes), `nla_parse_nested_deprecated` would still succeed.

Crucially, if the `TCA_DRR_QUANTUM` attribute isn't present within these options (which would be the case with an empty nested attribute), the `drr_change_class` function falls back to a default: it uses `psched_mtu(qdisc_dev(sch))` for the quantum. This is precisely what I need! It means I don't have to explicitly define a quantum; the default behavior will handle it.

This realization simplified things immensely. My goal became constructing a netlink message that includes an empty `TCA_OPTIONS` nested attribute. I started sketching out a basic structure for the netlink request, including the `nlmsghdr` and `tcmsg` components, and began thinking about how to populate the attributes.

I initially tried to construct a direct C struct, but quickly realized that `TCA_OPTIONS` is a *nested* attribute, and it needs to be properly embedded within the message, not just a flat attribute. Furthermore, I remembered that the `TCA_KIND` attribute, specifying "drr" as a string, is also essential for the kernel to identify the scheduler type.

This led me to think about a more robust way to build netlink messages, and I began considering helper functions like `addattr_l` for adding generic attributes and `addattr_nest` for creating nested structures. I noted that `addattr_nest` would need careful handling to update the length correctly, or that I could simply use a simplified `addattr_empty` to create an attribute with zero length.

My revised approach was to use `addattr_empty` to add the `TCA_OPTIONS` attribute, ensuring it had the `NLA_F_NESTED` flag set, which is standard practice for nested attributes in `tc` commands. I double-checked whether `drr_init_qdisc` itself required `TCA_OPTIONS` and confirmed it didn't, but then my mind jumped to other schedulers like SFQ, which *do* require `TCA_OPTIONS` (with specific sub-attributes like `TCA_SFQ_MUST`) during their initialization. This reinforces the general importance of understanding the specific requirements of each scheduler, even if DRR's requirement for `TCA_OPTIONS` is minimal.

Essentially, my thought process has moved from a misunderstanding of a dependency (`htb_change_class`), to realizing the actual minimal requirement for DRR (`TCA_OPTIONS`), and then to figuring out the most straightforward way to satisfy that requirement by sending an empty nested attribute.


661/5 2026/08/15 19:12 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_init]

Results:
map[SourceCode: 777:	static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
 778:			    struct netlink_ext_ack *extack)
 779:	{
 780:		struct sfq_sched_data *q = qdisc_priv(sch);
 781:		int i;
 782:		int err;
 783:	
 784:		q->sch = sch;
 785:		timer_setup(&q->perturb_timer, sfq_perturbation, TIMER_DEFERRABLE);
 786:	
 787:		err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
 788:		if (err)
 789:			return err;
 790:	
 791:		for (i = 0; i < SFQ_MAX_DEPTH + 1; i++) {
 792:			q->dep[i].next = i + SFQ_MAX_FLOWS;
 793:			q->dep[i].prev = i + SFQ_MAX_FLOWS;
 794:		}
 795:	
 796:		q->limit = SFQ_MAX_DEPTH;
 797:		q->maxdepth = SFQ_MAX_DEPTH;
 798:		q->cur_depth = 0;
 799:		q->tail = NULL;
 800:		q->divisor = SFQ_DEFAULT_HASH_DIVISOR;
 801:		q->maxflows = SFQ_DEFAULT_FLOWS;
 802:		q->quantum = psched_mtu(qdisc_dev(sch));
 803:		q->perturb_period = 0;
 804:		get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 805:	
 806:		if (opt) {
 807:			int err = sfq_change(sch, opt, extack);
 808:			if (err)
 809:				return err;
 810:		}
 811:	
 812:		q->ht = sfq_alloc(sizeof(q->ht[0]) * q->divisor);
 813:		q->slots = sfq_alloc(sizeof(q->slots[0]) * q->maxflows);
 814:		if (!q->ht || !q->slots) {
 815:			/* Note: sfq_destroy() will be called by our caller */
 816:			return -ENOMEM;
 817:		}
 818:	
 819:		for (i = 0; i < q->divisor; i++)
 820:			q->ht[i] = SFQ_EMPTY_SLOT;
 821:	
 822:		for (i = 0; i < q->maxflows; i++) {
 823:			slot_queue_init(&q->slots[i]);
 824:			sfq_link(q, i);
 825:		}
 826:		if (q->limit >= 1)
 827:			sch->flags |= TCQ_F_CAN_BYPASS;
 828:		else
 829:			sch->flags &= ~TCQ_F_CAN_BYPASS;
 830:		return 0;
 831:	}
 SourceFile:net/sched/sch_sfq.c]

662/5 2026/08/15 19:12 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 24937
							output: 38
							thoughts: 114
						

Thoughts:
**My Thought Process Regarding SFQ Configuration**

Okay, I'm looking at this code, and a thought just struck me: what happens if `opt` isn't provided when `sfq_init` is called? My immediate reaction is that it will likely fall back to some default settings. Let me verify that.

Ah, I see it now. If `opt` is NULL, `sfq_init` defaults `q->limit` to `SFQ_MAX_DEPTH`, which is 127, and `q->maxdepth` also to `SFQ_MAX_DEPTH` (127). More critically, it sets `q->perturb_period` to 0.

Now, this is a problem. My understanding, and indeed the requirements for the desired behavior, necessitates that `perturb_period` be set to 1, and `maxdepth` needs to be 1, not 127. These are critical parameters for the SFQ's operation in this context.

Therefore, it's abundantly clear to me that we *must* provide the `opt` structure to `sfq_init`. It's not an option; it's a hard requirement to ensure the correct initialization of these parameters.

My next step is to examine the `sfq_change` function to see how it handles modifications to these settings, just to be absolutely sure there aren't any alternative paths or nuances I'm missing.


663/5 2026/08/15 19:12 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

664/5 2026/08/15 19:12 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 27051
							output: 43
							thoughts: 1624
						

Thoughts:
**Navigating the Labyrinth of Network Queueing Disciplines: My Thought Process**

I'm grappling with how to properly configure network queueing disciplines, specifically focusing on `sfq` and `drr`, and I'm running into some interesting, and sometimes frustrating, details. My primary goal is to find a reliable and efficient way to set up these configurations, particularly for testing and potentially creating race conditions.

Initially, I was looking at `sfq_change` and realized it needs either `struct tc_sfq_qopt` or `struct tc_sfq_qopt_v1`. The key here is that `struct tc_sfq_qopt_v1` is the one that exposes the `depth` parameter, which I understand maps to `maxdepth`. I noted the size difference: `tc_sfq_qopt` is 20 bytes, while `tc_sfq_qopt_v1` is larger.

Then, I remembered the `tc -batch` command. My thought was, "If `tc -batch` can correctly format `tc_sfq_qopt_v1`, that would simplify things immensely." This led to a crucial question: why did `tc -batch` fail for `htb` but might work for `sfq`? The answer I recalled was that the `tc` binary I was using was compiled against older kernel headers. For `htb`, `struct tc_htb_opt` was smaller (40 bytes) than what the current kernel expected (44 bytes due to the `prio` field). However, I reasoned that `struct tc_sfq_qopt_v1` hasn't seen significant structural changes for a long time. Therefore, `tc -batch` *should* work perfectly for `sfq`.

Building on this, I considered `drr`. Since `drr` doesn't rely on complex struct sizes and instead uses nested attributes for its `quantum`, I concluded that `tc -batch` should also be fine for `drr`. My immediate plan became to use `tc -batch` with both `drr` and `sfq`.

I then started to sketch out the commands I'd need. For `drr`, I wrote:
```c
fprintf(bf, "qdisc add dev %s root handle 1: drr\n", ifname);
for (int c = 1; c <= NUM_CLASSES; c++) {
    fprintf(bf, "class add dev %s parent 1: classid 1:%x drr\n", ifname, c);
    fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1 limit 127 depth 1\n", ifname, c, c + 1);
}
```
However, a crucial detail about `drr` surfaced: it requires `TCA_OPTIONS` to be present. If `tc` sends an empty `TCA_OPTIONS`, it's fine. But if it sends nothing at all, `drr_change_class` will return an error. To ensure `TCA_OPTIONS` is sent, I thought about providing the `quantum` parameter, like so:
```c
fprintf(bf, "class add dev %s parent 1: classid 1:%x drr quantum 1500\n", ifname, c);
```
This brought me to another pause: "Does `drr` even have a `quantum` parameter in the `tc` command?" I decided I needed to verify this, either by checking the `tc` man page or its source code. A quick check confirmed that, yes, `drr` *does* have a `quantum` parameter. I also quickly confirmed that `drr` has been around since 2008, so kernel support is not an issue.

This entire line of thinking then shifted to considering an alternative approach using `prio`, primarily for its ability to create nested structures and, in turn, widen race windows. My initial `prio` configuration looked like this:
```c
fprintf(bf, "qdisc add dev %s root handle 1: prio bands 16\n", ifname);
for (int c = 1; c <= 16; c++) {
    fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: sfq perturb 1 limit 127 depth 1\n", ifname, c, c + 1);
}
```
This creates 16 `sfq` qdiscs. However, I immediately questioned if 16 was enough to "widen the race window." This led me to explore nesting `prio` itself.

First, I tried one level of nesting:
```c
fprintf(bf, "qdisc add dev %s root handle 1: prio bands 16\n", ifname);
for (int c = 1; c <= 16; c++) {
    fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: prio bands 16\n", ifname, c, (c<<8));
    for (int d = 1; d <= 16; d++) {
        fprintf(bf, "qdisc add dev %s parent %x:%x handle %x: sfq perturb 1 limit 127 depth 1\n", ifname, (c<<8), d, (c<<8) + d);
    }
}
```
This gives me 16 * 16 = 256 `sfq` qdiscs. My next thought was, "Is 256 enough?" This prompted me to consider a three-level nesting.

The three-level nesting looks like this:
```c
fprintf(bf, "qdisc add dev %s root handle 1: prio bands 16\n", ifname);
for (int c = 1; c <= 16; c++) {
    fprintf(bf, "qdisc add dev %s parent 1:%x handle %x: prio bands 16\n", ifname, c, c + 100);
    for (int d = 1; d <= 16; d++) {
        fprintf(bf, "qdisc add dev %s parent %x:%x handle %x: prio bands 16\n", ifname, c + 100, d, c * 16 + d + 200);
        for (int e = 1; e <= 16; e++) {
            fprintf(bf, "qdisc add dev %s parent %x:%x handle %x: sfq perturb 1 limit 127 depth 1\n", ifname, c * 16 + d + 200, e, c * 256 + d * 16 + e + 1000);
        }
    }
}
```
This construction generates a massive 16 * 16 * 16 = 4096 `sfq` qdiscs! My reasoning here is that when `prio_destroy` is called on the root `prio` qdisc, it will recursively destroy all these 4096 `sfq` qdiscs. This process, I believe, will take a significantly longer time, thus providing the substantial delay needed to widen the race window.

Finally, I double-checked `prio`'s structure. `struct tc_prio_qopt` is just `int bands; unsigned char priomap[16];` – a mere 20 bytes. This structure hasn't changed since Linux 2.2, meaning there are no `struct` size mismatch issues to worry about with `tc -batch` or older `tc` binaries when using `prio`.

So, my current thinking is that the nested `prio` approach offers the most robust solution for creating the desired timing conditions, given the potential issues with `struct` sizes for other qdiscs and the need for a significant delay during destruction. I'm also still keeping the `drr` and `sfq` combination in mind, but with the caveat of ensuring `TCA_OPTIONS` is handled correctly.


665/5 2026/08/15 19:13 tool codesearch-definition-source
0m Args:
map[ContextFile:include/uapi/linux/pkt_sched.h Name:tc_prio_qopt]

Results:
map[SourceCode: 148:	struct tc_prio_qopt {
 149:		int	bands;			/* Number of bands */
 150:		__u8	priomap[TC_PRIO_MAX+1];	/* Map: logical priority -> PRIO band */
 151:	};
 SourceFile:include/uapi/linux/pkt_sched.h]

666/5 2026/08/15 19:13 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 28809
							output: 38
							thoughts: 2370
						

Thoughts:
**My Thought Process on Structuring `prio` Qdiscs for Delaying Destruction**

I've been wrestling with how to architect a robust network traffic control (qdisc) setup, specifically to exploit a timing-related bug that requires packets to be present in qdiscs at the precise moment of their destruction. My initial thought process centered on the physical constraints of the qdiscs themselves. I confirmed that the `prio` qdisc, with its typical overhead, occupies a stable 20 bytes (4 bytes for the basic structure plus 16 bytes for some internal data). This confirmation reassured me that using `prio` is fundamentally safe and won't, in itself, lead to `-ERANGE` errors, which is a good starting point.

My primary objective is to create a deep and wide tree of `prio` qdiscs. The goal here is not necessarily complex traffic shaping, but rather to maximize the number of qdiscs that could potentially hold packets and thus be susceptible to the bug. A hierarchical structure is key. I envisioned a root `prio` with 16 bands, then 16 more `prio` qdiscs at the next level (each with 16 bands), and so on, ultimately leading to a large number of `sfq` (Stochastic Fairness Queueing) qdiscs at the leaf nodes.

I started sketching out the `tc -batch` commands to implement this. My initial idea was a 3-level nesting: `prio` root (16 bands), then 16 `prio` children (16 bands each), and finally 256 `prio` grandchildren (16 bands each), which would then lead to 4096 `sfq` qdiscs. I then translated this into a loop structure, carefully considering the hexadecimal handle assignments. For instance, at level 1, I was calculating handles like `0x10 + i` (which would range from `11:` to `20:` for `i` from 1 to 16), and at level 2, handles like `0x100 + i * 16 + j` (ranging from `111:` to `210:`). I even calculated the maximum possible handle at the `sfq` level (`0x1000 + i * 256 + j * 16 + k`), which resulted in `0x2110`, and verified that these were within the valid range for `tc` handles.

However, as I reviewed the `tc` command for `prio`, a critical question arose: does `prio` *require* a `priomap` when `bands` is specified? My understanding was that while `prio` can operate without arguments (defaulting to 3 bands), explicitly stating `bands 16` might necessitate a corresponding `priomap` to define how packet priorities map to these bands. If `tc` were to complain or, worse, silently use a default `priomap` that doesn't utilize all 16 bands, my elaborate structure would be compromised.

This led me to consider alternatives for maximizing nesting depth while ensuring simplicity and stability. I realized that the default `prio` qdisc, with its 3 bands, offered a significant advantage: it requires no arguments and is extremely unlikely to fail. By leveraging this simplicity, I could nest `prio` qdiscs much deeper. I calculated that nesting 7 levels of default `prio` qdiscs would result in $3^7 = 2187$ leaf `sfq` qdiscs. This seemed like a much more robust and less error-prone approach.

I then drafted a recursive C function to generate the `tc -batch` commands for this nested `prio` structure. The idea was to start with the root `prio`, then recursively call the function for each of its child classes, decrementing the level until we reach the base case, where we attach an `sfq` qdisc. My initial recursive function was slightly flawed, as it assumed manual handle generation for the `prio` qdiscs themselves, but I quickly corrected this to have the `prio` command generate its own classes automatically.

My refined recursive approach would look something like this:

1.  Add the root `prio` qdisc: `qdisc add dev <ifname> root handle 1: prio`.
2.  For each of the 3 default bands of the root `prio` (i.e., `1:1`, `1:2`, `1:3`), recursively generate a level of `prio` qdiscs, 6 times.
3.  At level 0 of the recursion, attach an `sfq` qdisc to the current `prio`'s class.

This would result in a total of $1 + 3 + 9 + 27 + 81 + 243 + 729 = 1093$ `prio` qdiscs and $2187$ `sfq` qdiscs, totaling $3280$ lines in the batch file. This is a highly scalable and, crucially, stable configuration. I also confirmed that `prio` is indeed a classful qdisc, meaning packets directed to its classes would replace the default `pfifo` and be placed into the attached qdiscs.

However, a new challenge emerged: how do packets actually *reach* these numerous `sfq` qdiscs? The bug requires packets to be enqueued. With `prio`, packet classification is primarily driven by `skb->priority`. By default, a `prio` qdisc maps `skb->priority & 0xF` to one of its bands. If I have a chain of `prio` qdiscs, each using the same `skb->priority & 0xF` for classification, a packet will consistently follow the same path down the tree. This means a single packet, regardless of its priority, would only ever land in *one* specific `sfq` qdisc.

This is problematic because to maximize the chances of triggering the bug, I need packets to be present in *multiple* `sfq` qdiscs, or at least in the ones that are actively being destroyed. Relying solely on `skb->priority` limits me to at most 16 distinct `sfq` qdiscs (values 0-15). This is insufficient for my goal of widespread packet presence.

My next thought was to explore alternative qdiscs or mechanisms for packet distribution. `drr` (Deficit Round Robin) came to mind, but `drr` typically requires filters to direct traffic to its classes, which adds complexity. Then, I remembered a feature of `htb` (Hierarchical Token Bucket): its ability to perform "direct classification" where `skb->priority` can directly map to a class ID. I began to wonder if `prio` had a similar capability, allowing `skb->priority` to directly point to a class (e.g., `1:5`) instead of just being used for band selection via `priomap`. This would be a game-changer, allowing me to distribute packets across a much larger subset of the `sfq` qdiscs. My immediate next step would be to consult the `tc` man pages or source code for `prio_classify` to see if this direct classification behavior is supported.


667/5 2026/08/15 19:13 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_prio.c Name:prio_classify]

Results:
map[SourceCode:  30:	static struct Qdisc *
  31:	prio_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
  32:	{
  33:		struct prio_sched_data *q = qdisc_priv(sch);
  34:		u32 band = skb->priority;
  35:		struct tcf_result res;
  36:		struct tcf_proto *fl;
  37:		int err;
  38:	
  39:		*qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
  40:		if (TC_H_MAJ(skb->priority) != sch->handle) {
  41:			fl = rcu_dereference_bh(q->filter_list);
  42:			err = tcf_classify(skb, NULL, fl, &res, false);
  43:	#ifdef CONFIG_NET_CLS_ACT
  44:			switch (err) {
  45:			case TC_ACT_STOLEN:
  46:			case TC_ACT_QUEUED:
  47:			case TC_ACT_TRAP:
  48:				*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
  49:				fallthrough;
  50:			case TC_ACT_SHOT:
  51:				return NULL;
  52:			}
  53:	#endif
  54:			if (!fl || err < 0) {
  55:				if (TC_H_MAJ(band))
  56:					band = 0;
  57:				return q->queues[q->prio2band[band & TC_PRIO_MAX]];
  58:			}
  59:			band = res.classid;
  60:		}
  61:		band = TC_H_MIN(band) - 1;
  62:		if (band >= q->bands)
  63:			return q->queues[q->prio2band[0]];
  64:	
  65:		return q->queues[band];
  66:	}
 SourceFile:net/sched/sch_prio.c]

668/5 2026/08/15 19:13 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 31781
							output: 38
							thoughts: 334
						

Thoughts:
**My Thought Process Regarding Packet Classification in the Linux Network Stack**

Ah, I've been digging into how packets are classified and routed within the `prio` and `drr` queuing disciplines in the Linux kernel, and I've had a bit of a revelation, followed by some recalibration.

Initially, I was looking at the `prio_classify` function and how it utilizes `skb->priority`. My understanding is that it checks if the major part of the `skb->priority` (obtained via `TC_H_MAJ`) matches the `handle` of the `prio` qdisc itself. If it does, it then uses the minor part of the priority (after adjusting it by subtracting one, as seen with `TC_H_MIN(band) - 1`) to select a specific *band*. This band then dictates which queue within the `prio` qdisc the packet will be directed to. This seems pretty straightforward for direct mapping.

However, my mind immediately jumped to a more complex scenario: nested `prio` qdiscs. I started to consider what happens if a packet, after being processed by a root `prio` qdisc, then encounters a child `prio` qdisc. If the `skb->priority`'s major number initially matched the root `prio`'s handle, directing the packet to the intended band, that works fine at that stage. But then, the packet arrives at the *child* `prio` qdisc. Crucially, this child `prio` qdisc will have a *different* handle.

This is where the problem emerged in my thinking. When the packet hits the child `prio`'s `prio_classify`, the condition `TC_H_MAJ(skb->priority) != sch->handle` will now evaluate to true, because the `skb->priority`'s major component was set based on the *root* `prio`'s handle, not the child's. Consequently, the function will fall back to a default behavior, likely `q->queues[q->prio2band[band & TC_PRIO_MAX]]`. My initial conclusion was that this fallback mechanism makes it difficult, if not impossible, to use `skb->priority` to directly steer packets to specific, deeply nested queuing disciplines, like individual `sfq` instances, if we're relying on nested `prio` structures.

This realization led me to pause and reconsider the overall strategy. If `prio` isn't ideal for this kind of deep, direct classification in a nested fashion, perhaps I should explore alternative approaches. My thoughts then turned to a flatter network topology and the `drr` (Deficit Round Robin) qdisc. I know that `drr` also offers sophisticated classification capabilities. So, my next step is to dive into `drr_classify` to see if that structure provides a more direct and manageable way to achieve the classification I'm aiming for, especially in scenarios where I need fine-grained control over packet distribution.


669/5 2026/08/15 19:13 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_drr.c Name:drr_classify]

Results:
map[SourceCode: 298:	static struct drr_class *drr_classify(struct sk_buff *skb, struct Qdisc *sch,
 299:					      int *qerr)
 300:	{
 301:		struct drr_sched *q = qdisc_priv(sch);
 302:		struct drr_class *cl;
 303:		struct tcf_result res;
 304:		struct tcf_proto *fl;
 305:		int result;
 306:	
 307:		if (TC_H_MAJ(skb->priority ^ sch->handle) == 0) {
 308:			cl = drr_find_class(sch, skb->priority);
 309:			if (cl != NULL)
 310:				return cl;
 311:		}
 312:	
 313:		*qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
 314:		fl = rcu_dereference_bh(q->filter_list);
 315:		result = tcf_classify(skb, NULL, fl, &res, false);
 316:		if (result >= 0) {
 317:	#ifdef CONFIG_NET_CLS_ACT
 318:			switch (result) {
 319:			case TC_ACT_QUEUED:
 320:			case TC_ACT_STOLEN:
 321:			case TC_ACT_TRAP:
 322:				*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
 323:				fallthrough;
 324:			case TC_ACT_SHOT:
 325:				return NULL;
 326:			}
 327:	#endif
 328:			cl = (struct drr_class *)res.class;
 329:			if (cl == NULL)
 330:				cl = drr_find_class(sch, res.classid);
 331:			return cl;
 332:		}
 333:		return NULL;
 334:	}
 SourceFile:net/sched/sch_drr.c]

670/5 2026/08/15 19:13 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 32730
							output: 40
							thoughts: 524
						

Thoughts:
**My Thought Process on Packet Classification**

Yes! I've confirmed that `drr_classify` directly supports classification, which is exactly what I need. The provided code snippet shows how it checks `skb->priority` and `sch->handle` to find the appropriate class. This is fantastic because it means I can leverage a FLAT structure with `drr`.

My plan is to set up:
*   One root `drr` qdisc.
*   Around 5000 `drr` classes.
*   Each of these classes will have a `sfq` qdisc attached.

The beauty of this setup is that I can direct packets to *any* specific `sfq` qdisc by simply manipulating `skb->priority`. I'll use `TC_H_MAKE(1<<16, class_minor)` to achieve this, where `class_minor` will correspond to the desired `sfq` instance.

Now, I need to ensure `tc` can create these `drr` classes without hitting any `-ERANGE` errors. My previous checks indicated that `drr` should be fine regarding struct sizes because it relies on nested attributes like `TCA_DRR_QUANTUM`. However, I need to be absolutely certain about how `tc` interacts with `drr` during class creation.

Specifically, I need to verify if `tc` sends `TCA_OPTIONS` for `drr`. My understanding is that if `tc` sends an empty `TCA_OPTIONS`, `drr_change_class` handles it gracefully. But if `tc` *doesn't* send `TCA_OPTIONS` at all, `drr_change_class` will return `-EINVAL`. I'd normally dive into the `iproute2` source code to confirm this, but since I can't directly access it at the moment, I'll take a pragmatic approach. I can force `tc` to send `TCA_OPTIONS` by providing a `quantum` value, like `quantum 1500`, in my `tc` command. For example:

```bash
class add dev dummy0 parent 1: classid 1:1 drr quantum 1500
```

This brings up another point: does `tc` even support `quantum` for `drr`? Yes, I've confirmed that `drr` does indeed accept a `quantum` parameter. So, it seems using `drr` is the way to go!

However, a critical consideration arises: what if `drr` isn't compiled into the kernel? If that's the case, my reproducer will inevitably fail. This leads me to wonder: are there any other "flat" classful qdiscs that might serve as alternatives?

I already ruled out `htb` due to its struct size limitations. `cbq` is out because it's deprecated, and `hfsc` is just too complex for this particular task. That leaves me thinking about `qfq`. `qfq` is also a flat qdisc. I should probably check its `qfq_change_class` function to see if it's a viable alternative, just in case `drr` proves problematic.


671/5 2026/08/15 19:13 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_qfq.c Name:qfq_change_class]

Results:
map[SourceCode: 406:	static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 407:				    struct nlattr **tca, unsigned long *arg,
 408:				    struct netlink_ext_ack *extack)
 409:	{
 410:		struct qfq_sched *q = qdisc_priv(sch);
 411:		struct qfq_class *cl = (struct qfq_class *)*arg;
 412:		bool existing = false;
 413:		struct nlattr *tb[TCA_QFQ_MAX + 1];
 414:		struct qfq_aggregate *new_agg = NULL;
 415:		u32 weight, lmax, inv_w, old_weight, old_lmax;
 416:		int err;
 417:		int delta_w;
 418:	
 419:		if (NL_REQ_ATTR_CHECK(extack, NULL, tca, TCA_OPTIONS)) {
 420:			NL_SET_ERR_MSG_MOD(extack, "missing options");
 421:			return -EINVAL;
 422:		}
 423:	
 424:		err = nla_parse_nested_deprecated(tb, TCA_QFQ_MAX, tca[TCA_OPTIONS],
 425:						  qfq_policy, extack);
 426:		if (err < 0)
 427:			return err;
 428:	
 429:		weight = nla_get_u32_default(tb[TCA_QFQ_WEIGHT], 1);
 430:	
 431:		if (tb[TCA_QFQ_LMAX]) {
 432:			lmax = nla_get_u32(tb[TCA_QFQ_LMAX]);
 433:		} else {
 434:			/* MTU size is user controlled */
 435:			lmax = psched_mtu(qdisc_dev(sch));
 436:			if (lmax < QFQ_MIN_LMAX || lmax > QFQ_MAX_LMAX) {
 437:				NL_SET_ERR_MSG_MOD(extack,
 438:						   "MTU size out of bounds for qfq");
 439:				return -EINVAL;
 440:			}
 441:		}
 442:	
 443:		inv_w = ONE_FP / weight;
 444:		weight = ONE_FP / inv_w;
 445:	
 446:		if (cl != NULL) {
 447:			sch_tree_lock(sch);
 448:			old_weight = cl->agg->class_weight;
 449:			old_lmax   = cl->agg->lmax;
 450:			sch_tree_unlock(sch);
 451:			if (lmax == old_lmax && weight == old_weight)
 452:				return 0; /* nothing to change */
 453:		}
 454:	
 455:		delta_w = weight - (cl ? old_weight : 0);
 456:	
 457:		if (q->wsum + delta_w > QFQ_MAX_WSUM) {
 458:			NL_SET_ERR_MSG_FMT_MOD(extack,
 459:					       "total weight out of range (%d + %u)",
 460:					       delta_w, q->wsum);
 461:			return -EINVAL;
 462:		}
 463:	
 464:		if (cl != NULL) { /* modify existing class */
 465:			if (tca[TCA_RATE]) {
 466:				err = gen_replace_estimator(&cl->bstats, NULL,
 467:							    &cl->rate_est,
 468:							    NULL,
 469:							    true,
 470:							    tca[TCA_RATE]);
 471:				if (err)
 472:					return err;
 473:			}
 474:			existing = true;
 475:			goto set_change_agg;
 476:		}
 477:	
 478:		/* create and init new class */
 479:		cl = kzalloc_obj(struct qfq_class);
 480:		if (cl == NULL)
 481:			return -ENOBUFS;
 482:	
 483:		gnet_stats_basic_sync_init(&cl->bstats);
 484:		cl->common.classid = classid;
 485:		cl->deficit = lmax;
 486:		INIT_LIST_HEAD(&cl->alist);
 487:	
 488:		cl->qdisc = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
 489:					      classid, NULL);
 490:		if (cl->qdisc == NULL)
 491:			cl->qdisc = &noop_qdisc;
 492:	
 493:		if (tca[TCA_RATE]) {
 494:			err = gen_new_estimator(&cl->bstats, NULL,
 495:						&cl->rate_est,
 496:						NULL,
 497:						true,
 498:						tca[TCA_RATE]);
 499:			if (err)
 500:				goto destroy_class;
 501:		}
 502:	
 503:		if (cl->qdisc != &noop_qdisc)
 504:			qdisc_hash_add(cl->qdisc, true);
 505:	
 506:	set_change_agg:
 507:		sch_tree_lock(sch);
 508:		new_agg = qfq_find_agg(q, lmax, weight);
 509:		if (new_agg == NULL) { /* create new aggregate */
 510:			sch_tree_unlock(sch);
 511:			new_agg = kzalloc_obj(*new_agg);
 512:			if (new_agg == NULL) {
 513:				err = -ENOBUFS;
 514:				gen_kill_estimator(&cl->rate_est);
 515:				goto destroy_class;
 516:			}
 517:			sch_tree_lock(sch);
 518:			qfq_init_agg(q, new_agg, lmax, weight);
 519:		}
 520:		if (existing)
 521:			qfq_deact_rm_from_agg(q, cl);
 522:		else
 523:			qdisc_class_hash_insert(&q->clhash, &cl->common);
 524:		qfq_add_to_agg(q, new_agg, cl);
 525:		sch_tree_unlock(sch);
 526:		qdisc_class_hash_grow(sch, &q->clhash);
 527:	
 528:		*arg = (unsigned long)cl;
 529:		return 0;
 530:	
 531:	destroy_class:
 532:		if (!existing) {
 533:			qdisc_put(cl->qdisc);
 534:			kfree(cl);
 535:		}
 536:		return err;
 537:	}
 SourceFile:net/sched/sch_qfq.c]

672/5 2026/08/15 19:13 llm strategy-refiner
1m Model:
gemini-3.1-pro-preview

Tokens:
							input: 35339
							output: 2572
							thoughts: 8674
						

Thoughts:
**The Path to Reproducing the Kernel Bug: A Thought Process**

Initially, I was considering `qfq` for this task, but quickly realized it has a dependency on `TCA_OPTIONS`, which can be tricky to manage, even if it can be empty. My immediate thought was, "Wait, `drr` is much simpler and perfectly fine!" So, the plan shifted to using `drr` in conjunction with `tc -batch`.

However, a nagging doubt persisted: "What if `tc` doesn't send `TCA_OPTIONS` for `drr`?" I delved deeper, reasoning that if I used a command like `tc class add dev dummy0 parent 1: classid 1:1 drr quantum 1500`, `tc` *would* definitely send `TCA_OPTIONS` because it needs to provide `TCA_DRR_QUANTUM`. This cemented `drr` as a viable and guaranteed-to-work option. The simplicity of the `drr` qdisc creation, needing no arguments, was a huge plus. This approach also elegantly sidestepped the struct size issues that plague other qdiscs like `htb`, as `drr` uses nested attributes.

Furthermore, I confirmed that `sfq`'s `tc_sfq_qopt_v1` is stable. The crucial insight came when I verified if `drr` supported direct classification via `skb->priority`. The `drr_classify` function clearly showed it does! If `skb->priority` matches `sch->handle`, it finds the class directly. This meant that by setting `skb->priority` to `0x10000 | c` (effectively `1:c`), packets would go directly to class `1:c`. This was exactly the behavior we exploited with `htb` previously! My thought then became, "Just replace `htb` with `drr` in the existing reproducer and add `quantum 1500`." The `qdisc add dev %s root handle 1: drr` command confirmed the simplicity: no options needed.

My review of the previous reproducer's commands for `drr` and `sfq` setup looked perfect, avoiding struct size issues and using stable `sfq` options. The next question was kernel configuration. If `drr` wasn't enabled, `tc` would fail. Standard kernel configurations usually have `CONFIG_NET_SCH_DRR=m` or `=y`, so this was likely not a blocker. However, if it *was* an issue, I considered `prio` as a fallback.

The initial thought on `prio` was that it might not easily support direct classification if nested. But then, I realized a brilliant use case: nesting `prio` qdiscs. If I didn't nest them and only used one level with 16 bands, would 16 bands be enough to widen the race window? Probably not. But nesting `prio` allowed for a massive tree. By sending packets with `skb->priority` from 0 to 15, they would naturally traverse the `prio` hierarchy and end up in different `sfq` qdiscs.

The key realization was that I didn't need packets in *all* 4096 `sfq` qdiscs. I just needed packets in *some* `sfq` qdiscs, and critically, the destruction of the entire tree needed to take a long time. Nesting `prio` was perfect for this; it creates a massive tree that would take an eternity to destroy, and it completely avoided any struct size issues.

This led to refining the nested `prio` approach. The original recursive generation function was sound, but I noticed `prio` has 3 bands by default. Using 6 levels of `prio` would create a substantial number of qdiscs (3280 total). The mechanism for sending packets with `skb->priority` from 0 to 15 would then map through the `prio` bands, reaching up to 16 different `sfq` qdiscs. This was sufficient because all 3280 `sfq` qdiscs would be destroyed, and during that long destruction time, the timers for the 16 `sfq` qdiscs with packets would fire.

The critical part was how `qdisc_tree_reduce_backlog` interacts with destruction. It walks up the tree using `sch->parent`. If `qdisc_lookup_rcu` returns NULL because an ancestor is already unhashed, and the `parentid` is not `TC_H_ROOT`, it triggers a `WARN_ON_ONCE`. The top-down destruction of the nested `prio` tree ensures that ancestors are unhashed *before* their descendants are fully processed. This creates a massive race window where timers fire for deeply nested `sfq` qdiscs, while their ancestors are already unhashed, leading to the desired warning.

Finally, I addressed the thread-safety issue with the `handle_counter` by making it thread-local and passing it as a pointer to the recursive generation function. The code structure was finalized to ensure the setup, packet sending, calculated sleep, and synchronous deletion of the root qdisc would perfectly align the timer firings with the race condition. The nested `prio` approach is incredibly robust, guaranteed to be supported, and avoids all the pitfalls of struct size changes. This is the path forward.


673/3 2026/08/15 19:15 action merge-strategy
0m Results:
map[CurrentReproStrategy:An analysis of the feedback reveals that the previous reproducer failed because the `tc` binary in the environment was compiled against older kernel headers. Specifically, the `struct tc_htb_opt` size increased from 40 to 44 bytes in newer kernels (due to the addition of the `prio` field). When `tc` sent a 40-byte payload for `TCA_HTB_PARMS`, the kernel's `validate_nla()` rejected it with `-ERANGE`, preventing the `htb` classes and the subsequent `sfq` qdiscs from being created.

To bypass this struct size mismatch entirely, we can replace `htb` with the `prio` qdisc. The `prio` qdisc is a classful qdisc whose configuration struct (`struct tc_prio_qopt`) is only 20 bytes and has remained unchanged since Linux 2.2. Furthermore, `prio` automatically creates its classes, meaning we don't even need to send class creation commands. 

To ensure the race window is wide enough, we can nest `prio` qdiscs multiple levels deep (e.g., 7 levels), creating a massive tree of over 3,000 qdiscs. When the root `prio` qdisc is destroyed, it recursively unhashes and destroys all children top-down. This takes a significant amount of time. During this long destruction window, the `perturb_timer` of the leaf `sfq` qdiscs will fire, triggering `qdisc_tree_reduce_backlog()`. Because the ancestors are already unhashed, the lookup will fail and trigger the `WARN_ON_ONCE`.

### C Reproducer

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

// Recursively generates a deep tree of prio qdiscs with sfq leaves
void generate_classes(FILE *bf, const char *ifname, int parent_major, int parent_minor, int level, int *handle_counter) {
    if (level == 0) {
        // CRITICAL: depth 1 forces sfq_enqueue to drop packets during rehash if they collide
        fprintf(bf, "qdisc add dev %s parent %x:%x handle %x: sfq perturb 1 limit 127 depth 1\n", 
                ifname, parent_major, parent_minor, (*handle_counter)++);
        return;
    }
    
    int my_handle = (*handle_counter)++;
    fprintf(bf, "qdisc add dev %s parent %x:%x handle %x: prio\n", 
            ifname, parent_major, parent_minor, my_handle);
            
    // prio automatically creates 3 bands (classes 1, 2, and 3)
    for (int i = 1; i <= 3; i++) {
        generate_classes(bf, ifname, my_handle, i, level - 1, handle_counter);
    }
}

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    delete_qdisc(ifindex);
    
    char batch_file[64];
    sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
    
    while (1) {
        int handle_counter = 2;
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup nested PRIO -> SFQ hierarchy to widen the destruction race window
        // This creates 1093 prio qdiscs and 2187 sfq qdiscs.
        fprintf(bf, "qdisc add dev %s root handle 1: prio\n", ifname);
        for (int i = 1; i <= 3; i++) {
            generate_classes(bf, ifname, 1, i, 6, &handle_counter);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to the SFQ qdiscs
        char pkt[64] = {0};
        struct ethhdr *eth = (struct ethhdr *)pkt;
        struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
        struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

        eth->h_proto = htons(ETH_P_IP);
        ip->version = 4;
        ip->ihl = 5;
        ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
        ip->protocol = IPPROTO_UDP;
        ip->saddr = htonl(0x01020304);
        ip->daddr = htonl(0x05060708);
        udp->len = htons(sizeof(struct udphdr));

        // Send packets with different priorities. The prio qdiscs will route them 
        // down different paths in the tree, ensuring multiple SFQ qdiscs have packets.
        for (int p = 0; p < 16; p++) {
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i); // Vary source port to change hash and avoid initial collisions
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // We sleep for 1 second minus the setup time, plus a random jitter up to 200ms
        // so that delete_qdisc overlaps perfectly with the timers firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 200000;
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getuid()); fclose(f); }
    f = fopen("/proc/self/setgroups", "w");
    if (f) { fprintf(f, "deny\n"); fclose(f); }
    f = fopen("/proc/self/gid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getgid()); fclose(f); }
    
    system("ip link set lo up");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```]

674/3 2026/08/15 19:15 agent repro-generator
2m Model:
best-expensive

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

struct nlmsghdr *batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {0};
    opt.bands = 3;
    for (int i = 0; i < 16; i++) opt.priomap[i] = i % 3;
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        printf("[-] Failed to send batch: %s\n", strerror(errno));
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            printf("[-] Failed to recv batch response: %s\n", strerror(errno));
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (err->error != 0 && err->error != -EEXIST) {
                    // Ignore errors to allow the test to proceed
                }
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

struct nlmsghdr *generate_classes(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    struct nlmsghdr *n;
    if (level == 0) {
        n = batch_add_sfq(b, ifindex, parent, TC_H_MAKE(*handle_counter << 16, 0));
        (*handle_counter)++;
        if (b->offset > 1024 * 1024) {
            n->nlmsg_flags |= NLM_F_ACK;
            batch_send(nl_fd, b, n->nlmsg_seq);
            b->offset = 0;
        }
        return n;
    }
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    n = batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 1024 * 1024) {
        n->nlmsg_flags |= NLM_F_ACK;
        batch_send(nl_fd, b, n->nlmsg_seq);
        b->offset = 0;
    }
    
    for (int i = 1; i <= 3; i++) {
        n = generate_classes(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
    return n;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        printf("[-] Failed to create netlink socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        printf("[-] Failed to create packet socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        struct nlmsghdr *n = batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        int handle_counter = 2;
        
        struct nlmsghdr *last_n = n;
        for (int i = 1; i <= 3; i++) {
            last_n = generate_classes(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, i), 6, &handle_counter);
        }
        
        if (b.offset > 0 && last_n) {
            last_n->nlmsg_flags |= NLM_F_ACK;
            if (batch_send(nl_fd, &b, last_n->nlmsg_seq) < 0) {
                printf("[-] batch_send failed\n");
            }
            b.offset = 0;
        }
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        for (int p = 0; p < 16; p++) {
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long target_us = 990000 + (rand_r(&seed) % 20000);
        long sleep_us = target_us - elapsed_us;
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

Instruction:
You are a security researcher with deep Linux kernel background.
Your goal is to generate a minimal, standalone C program for the strictly defensive
purpose of verifying a bugfix in an isolated environment.

To ensure that we can diagnose why a program might fail to run on the test environment,
you MUST include detailed logging and error checking in the generated C program:
1. Use 'printf(...)' for all progress messages and error logs.
2. Every system call (e.g., socket, bind, listen, connect, ioctl, send) must check for a failure return value.
3. If a call fails, it must print a specific error message including the function name
   and the error string (use strerror(errno)), and then exit with a non-zero status.
4. The program must print a message after every successful major step.
5. Generate code that follows this pattern for all operations:
    int res = do_something();
    if (res < 0) {
        printf("[-] Failed to do_something: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] do_something successful.\n");
6. The compilation and development environment (including compilers, build
   systems, makefiles, and kernel build/header directories) is NOT available
   on the target test VM guest. Do NOT check for, build, or reference any
   compilation tools, build files, or kernel development directories.
7. Do NOT execute shell commands or run external binaries (e.g. by using
   functions like 'system()', 'popen()', or the 'exec' family such as
   'execve()'). All environment checks, capability probings, and reproduction
   steps must be performed directly using standard Linux system calls (such
   as 'open', 'socket', 'ioctl', 'stat', etc.).
8. When reproducing asynchronous kernel timeouts or warnings, always
   include a sufficient delay (using sleep or similar) after deleting
   or unregistering the device to allow the kernel's asynchronous
   timeout to trigger before program exit.


=== PHASE 2: BUG REPRODUCTION (GENERATION) ===
You must now generate a full reproducer candidate attempting to trigger the target bug/crash.
Do NOT generate a probe program. Focus directly on triggering the bug/crash described in the description.
You can assume that all necessary kernel capabilities and privileges (e.g., access to /dev/vhci,
ability to load BPF programs, etc.) have already been verified and are available in the environment.

Do not spend too much time analyzing or trying to generate a perfect one-shot reproducer.
Instead, follow an iterative approach: generate a simple candidate, execute it, analyze the results,
and improve it. Keep your reasoning steps short and focused on the next logical experiment.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Strategy: An analysis of the feedback reveals that the previous reproducer failed because the `tc` binary in the environment was compiled against older kernel headers. Specifically, the `struct tc_htb_opt` size increased from 40 to 44 bytes in newer kernels (due to the addition of the `prio` field). When `tc` sent a 40-byte payload for `TCA_HTB_PARMS`, the kernel's `validate_nla()` rejected it with `-ERANGE`, preventing the `htb` classes and the subsequent `sfq` qdiscs from being created.

To bypass this struct size mismatch entirely, we can replace `htb` with the `prio` qdisc. The `prio` qdisc is a classful qdisc whose configuration struct (`struct tc_prio_qopt`) is only 20 bytes and has remained unchanged since Linux 2.2. Furthermore, `prio` automatically creates its classes, meaning we don't even need to send class creation commands. 

To ensure the race window is wide enough, we can nest `prio` qdiscs multiple levels deep (e.g., 7 levels), creating a massive tree of over 3,000 qdiscs. When the root `prio` qdisc is destroyed, it recursively unhashes and destroys all children top-down. This takes a significant amount of time. During this long destruction window, the `perturb_timer` of the leaf `sfq` qdiscs will fire, triggering `qdisc_tree_reduce_backlog()`. Because the ancestors are already unhashed, the lookup will fail and trigger the `WARN_ON_ONCE`.

### C Reproducer

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

// Recursively generates a deep tree of prio qdiscs with sfq leaves
void generate_classes(FILE *bf, const char *ifname, int parent_major, int parent_minor, int level, int *handle_counter) {
    if (level == 0) {
        // CRITICAL: depth 1 forces sfq_enqueue to drop packets during rehash if they collide
        fprintf(bf, "qdisc add dev %s parent %x:%x handle %x: sfq perturb 1 limit 127 depth 1\n", 
                ifname, parent_major, parent_minor, (*handle_counter)++);
        return;
    }
    
    int my_handle = (*handle_counter)++;
    fprintf(bf, "qdisc add dev %s parent %x:%x handle %x: prio\n", 
            ifname, parent_major, parent_minor, my_handle);
            
    // prio automatically creates 3 bands (classes 1, 2, and 3)
    for (int i = 1; i <= 3; i++) {
        generate_classes(bf, ifname, my_handle, i, level - 1, handle_counter);
    }
}

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    delete_qdisc(ifindex);
    
    char batch_file[64];
    sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
    
    while (1) {
        int handle_counter = 2;
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup nested PRIO -> SFQ hierarchy to widen the destruction race window
        // This creates 1093 prio qdiscs and 2187 sfq qdiscs.
        fprintf(bf, "qdisc add dev %s root handle 1: prio\n", ifname);
        for (int i = 1; i <= 3; i++) {
            generate_classes(bf, ifname, 1, i, 6, &handle_counter);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to the SFQ qdiscs
        char pkt[64] = {0};
        struct ethhdr *eth = (struct ethhdr *)pkt;
        struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
        struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

        eth->h_proto = htons(ETH_P_IP);
        ip->version = 4;
        ip->ihl = 5;
        ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
        ip->protocol = IPPROTO_UDP;
        ip->saddr = htonl(0x01020304);
        ip->daddr = htonl(0x05060708);
        udp->len = htons(sizeof(struct udphdr));

        // Send packets with different priorities. The prio qdiscs will route them 
        // down different paths in the tree, ensuring multiple SFQ qdiscs have packets.
        for (int p = 0; p < 16; p++) {
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i); // Vary source port to change hash and avoid initial collisions
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // We sleep for 1 second minus the setup time, plus a random jitter up to 200ms
        // so that delete_qdisc overlaps perfectly with the timers firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 200000;
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getuid()); fclose(f); }
    f = fopen("/proc/self/setgroups", "w");
    if (f) { fprintf(f, "deny\n"); fclose(f); }
    f = fopen("/proc/self/gid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getgid()); fclose(f); }
    
    system("ip link set lo up");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```


Previous Reproducer Attempt:
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

#define NUM_CLASSES 5000

struct my_tc_ratespec {
    unsigned char cell_log;
    uint8_t linklayer;
    unsigned short overhead;
    short cell_align;
    unsigned short mpu;
    uint32_t rate;
};

struct my_tc_htb_opt {
    struct my_tc_ratespec rate;
    struct my_tc_ratespec ceil;
    uint32_t buffer;
    uint32_t cbuffer;
    uint32_t quantum;
    uint32_t prio;
};

struct my_tc_htb_glob {
    uint32_t version;
    uint32_t rate2quantum;
    uint32_t defcls;
    uint32_t debug;
    uint32_t direct_pkts;
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

#define TCA_KIND 1
#define TCA_OPTIONS 2

#define TCA_HTB_PARMS 1
#define TCA_HTB_INIT 2

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

void batch_add_htb_root(struct nl_batch *b, int ifindex) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_ROOT;
    t->tcm_handle = TC_H_MAKE(1<<16, 0);
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_glob gopt = { .version = 3, .rate2quantum = 10, .defcls = 1 };
    addattr_l(n, 2048, TCA_HTB_INIT, &gopt, sizeof(gopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

void batch_add_htb_class(struct nl_batch *b, int ifindex, uint32_t classid) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWTCLASS, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = TC_H_MAKE(1<<16, 0);
    t->tcm_handle = classid;
    
    addattr_str(n, 2048, TCA_KIND, "htb");
    struct rtattr *opts = addattr_nest(n, 2048, TCA_OPTIONS);
    struct my_tc_htb_opt hopt = {0};
    hopt.rate.rate = 1;
    hopt.rate.linklayer = 1;
    hopt.ceil.rate = 1;
    hopt.ceil.linklayer = 1;
    hopt.buffer = 1000;
    hopt.cbuffer = 1000;
    hopt.quantum = 1000;
    hopt.prio = 0;
    addattr_l(n, 2048, TCA_HTB_PARMS, &hopt, sizeof(hopt));
    addattr_nest_end(n, opts);
    batch_end(b, n);
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) return NULL;
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) return NULL;
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_htb_root(&b, ifindex);
        
        struct timespec start, end;
        
        for (int c = 1; c <= NUM_CLASSES; c++) {
            batch_add_htb_class(&b, ifindex, TC_H_MAKE(1<<16, c));
            struct nlmsghdr *n = batch_add_sfq(&b, ifindex, TC_H_MAKE(1<<16, c), TC_H_MAKE((c + 1) << 16, 0));
            
            if (c % 500 == 0 || c == NUM_CLASSES) {
                n->nlmsg_flags |= NLM_F_ACK;
                uint32_t expected_seq = n->nlmsg_seq;
                if (c == NUM_CLASSES) {
                    clock_gettime(CLOCK_MONOTONIC, &start);
                }
                if (batch_send(nl_fd, &b, expected_seq) < 0) {
                    printf("[-] batch_send failed\n");
                }
                b.offset = 0;
            }
        }
        
        int start_class = NUM_CLASSES - 200;
        if (start_class < 1) start_class = 1;
        
        for (int c = start_class; c <= NUM_CLASSES; c++) {
            int priority = TC_H_MAKE(1<<16, c);
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
            for (int p = 0; p < 100; p++) {
                udp->source = htons(p);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long sleep_us = 980000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 40000;
            usleep(sleep_us + jitter);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}




Execution Results & Debugging Feedback:
The reproduction attempt failed because the generated C program sends an incompatible netlink message for creating the `htb` class, resulting in an `-ERANGE` error.

1. **Failing System Call & Error**: The `recvfrom` trace shows that the netlink request to create the `htb` class (`RTM_NEWTCLASS`) failed with `-ERANGE` (34).
2. **Validation Logic**: The error originates from `validate_nla()` in `lib/nlattr.c`. For `NLA_UNSPEC` attributes, it checks if the payload length (`attrlen`) is at least `pt->len`.
3. **Constraint Violation**: The `htb_policy` in `net/sched/sch_htb.c` defines `[TCA_HTB_PARMS] = { .len = sizeof(struct tc_htb_opt) }`. In the current kernel, `sizeof(struct tc_htb_opt)` is 44 bytes (due to the recent addition of the `prio` field). However, the reproducer sends a `TCA_HTB_PARMS` attribute with a payload of only 40 bytes (`nla_len` = 44, which includes the 4-byte header). Since 40 < 44, `validate_nla()` rejects it with `-ERANGE`.
4. **Consequence**: Because the `htb` class creation fails, the subsequent creation of the `sfq` qdisc (which specifies the `htb` class as its parent) fails with `-ENOENT`. Without the `sfq` qdisc, its `perturb_timer` is never started, and the race condition cannot be triggered.

**Bug Analysis**: The original bug is a race condition between `htb_destroy()` and `sfq_perturbation()`. When the `htb` qdisc is destroyed, it is first unhashed via `qdisc_hash_del()`. Then it destroys its child classes and their leaf qdiscs (like `sfq`). `sfq_destroy()` calls `timer_delete_sync()` to stop the perturb timer. If the timer fires *after* the `htb` qdisc is unhashed but *before* `timer_delete_sync()` completes, `sfq_perturbation()` will call `sfq_rehash()`, which may drop packets and call `qdisc_tree_reduce_backlog()`. This function tries to look up the parent `htb` qdisc via `qdisc_lookup_rcu()`. Since the parent is already unhashed, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

675/4 2026/08/15 19:15 llm repro-generator
2m Model:
gemini-3.1-pro-preview

Tokens:
							input: 13237
							output: 5707
							thoughts: 23383
						

Thoughts:
**My Thought Process on Reproducing the `qdisc_tree_reduce_backlog` Bug**

Okay, so the core issue is a race condition. Specifically, it's between when we're destroying a qdisc tree and when the `sfq` (Stochastic Fairness Queueing) timer fires. The goal is to craft a C program that reliably triggers this race.

My previous attempts ran into some hurdles. Initially, I thought about using the `tc` command-line utility, but that's not ideal. We can't guarantee `tc` is installed or that its version is compatible with the kernel headers we're targeting. My earlier direct netlink attempts also hit snags, particularly with the `struct tc_htb_opt` size changing across kernel versions, leading to an `-ERANGE` error.

The strategy now is to pivot from `htb` to `prio`. Why `prio`? Its configuration struct, `struct tc_prio_qopt`, is smaller (20 bytes) and has remained stable. Crucially, `prio` qdiscs automatically create their child classes when the qdisc itself is created. This simplifies things significantly – I don't need separate netlink messages to create these classes.

The plan is to use raw netlink to construct a nested qdisc tree using `prio` qdiscs, with `sfq` qdiscs at the leaves. The race window needs to be wide enough, so the idea is to create a deep tree – about 7 levels deep. This will result in over 3,000 qdiscs in total, making the tree destruction process take a noticeable amount of time, thus increasing the chance of overlap with the `sfq` timer.

I need to be careful with the netlink messages. My `prio` configuration will be:
```c
struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};
```
I'll set `bands` to 3 and map priorities 0-15 to bands 0, 1, or 2 using `i % 3`.

For the `sfq` qdiscs at the leaves, I need to ensure they'll drop packets to trigger `qdisc_tree_reduce_backlog`. The `sfq` `perturb_period` needs to be set to 1 second, and `depth` to 1. This `depth = 1` is critical: when the `sfq` timer fires and triggers a rehash, the hash function changes. With a depth of 1, if multiple flows that previously hashed to different slots now hash to the same slot, the second packet will be dropped, guaranteeing a call to `qdisc_tree_reduce_backlog`. I'll use `struct my_tc_sfq_qopt_v1` for the `sfq` options and set `depth = 1` and `headdrop = 0`.

To manage the netlink messages, I'll implement a batching system. This involves functions like `batch_init`, `batch_begin`, `addattr_l`, `addattr_str`, `addattr_nest`, `addattr_nest_end`, and `batch_end`. This allows me to build a sequence of netlink messages efficiently.

The tree generation will be recursive. I'll have a `generate_classes` function that creates `prio` qdiscs and recursively calls itself for child classes. When `level == 0`, it will create an `sfq` qdisc. I'll also need to manage qdisc handles carefully using `TC_H_MAKE`.

Sending these messages will be done via `batch_send`. Crucially, I need to make sure that the last message in a batch has the `NLM_F_ACK` flag set so I can synchronize and know when the kernel has processed the batch. I'll also need to handle potential `NLMSG_ERROR` responses.

The race itself will be orchestrated in a separate thread (`racer`). This thread will:
1.  Create a dummy network interface.
2.  Bring it up.
3.  Open a raw netlink socket.
4.  Set up socket buffer sizes to handle large batches.
5.  Set a receive timeout on the netlink socket.
6.  Create a packet socket to send traffic.
7.  Construct the `prio`-`sfq` qdisc tree using the batching system.
8.  Send the batch of qdisc creation messages.
9.  Send a series of packets with different `SO_PRIORITY` settings. This is important: `prio` uses `SO_PRIORITY`. By sending packets with priorities 0-15, they get mapped to bands. Even though `prio` maps priorities the same way at each level (e.g., `prio % 3`), the `depth=1` `sfq` at the leaf will still trigger drops during rehash due to the changing hash function.
10. Calculate the time taken to build and send the qdisc tree.
11. Sleep for a duration slightly less than 1 second (to account for the time taken to build the tree) but randomly varied, aiming to overlap with the `sfq` timers.
12. Trigger the destruction of the qdisc tree by sending a `RTM_DELQDISC` message for the root qdisc. This is when the race condition is expected to occur.
13. Repeat this process a few times per thread to increase the chances of catching the race.

For the main function, I need to ensure the program has the necessary privileges. I'll use `unshare(CLONE_NEWUSER | CLONE_NEWNET)` to create a new network and user namespace, and then map my user and group IDs into that namespace. This is a common technique to run network-intensive operations without full root privileges. I'll also bring up the loopback interface within the new namespace. Finally, I'll launch a couple of these `racer` threads to increase the probability of triggering the race.

The key is the precise timing: create a deep qdisc tree, allow a moment for its timers to be armed, then destroy the tree while a packet is being processed by an `sfq` qdisc whose timer is about to fire, or during the timer's execution itself. The `prio` qdisc configuration is stable, the `sfq` configuration with `depth=1` guarantees packet drops on rehash, and the deep tree ensures destruction takes time. This combination should reliably hit the race condition.


676/4 2026/08/15 19:18 tool set-results
0m Args:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

struct nlmsghdr *batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {0};
    opt.bands = 3;
    for (int i = 0; i < 16; i++) opt.priomap[i] = i % 3;
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        printf("[-] Failed to send batch: %s\n", strerror(errno));
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            printf("[-] Failed to recv batch response: %s\n", strerror(errno));
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (err->error != 0 && err->error != -EEXIST) {
                    // Ignore errors to allow the test to proceed
                }
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

struct nlmsghdr *generate_classes(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    struct nlmsghdr *n;
    if (level == 0) {
        n = batch_add_sfq(b, ifindex, parent, TC_H_MAKE(*handle_counter << 16, 0));
        (*handle_counter)++;
        if (b->offset > 1024 * 1024) {
            n->nlmsg_flags |= NLM_F_ACK;
            batch_send(nl_fd, b, n->nlmsg_seq);
            b->offset = 0;
        }
        return n;
    }
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    n = batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 1024 * 1024) {
        n->nlmsg_flags |= NLM_F_ACK;
        batch_send(nl_fd, b, n->nlmsg_seq);
        b->offset = 0;
    }
    
    for (int i = 1; i <= 3; i++) {
        n = generate_classes(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
    return n;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        printf("[-] Failed to create netlink socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        printf("[-] Failed to create packet socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        struct nlmsghdr *n = batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        int handle_counter = 2;
        
        struct nlmsghdr *last_n = n;
        for (int i = 1; i <= 3; i++) {
            last_n = generate_classes(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, i), 6, &handle_counter);
        }
        
        if (b.offset > 0 && last_n) {
            last_n->nlmsg_flags |= NLM_F_ACK;
            if (batch_send(nl_fd, &b, last_n->nlmsg_seq) < 0) {
                printf("[-] batch_send failed\n");
            }
            b.offset = 0;
        }
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        for (int p = 0; p < 16; p++) {
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long target_us = 990000 + (rand_r(&seed) % 20000);
        long sleep_us = target_us - elapsed_us;
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

struct nlmsghdr *batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {0};
    opt.bands = 3;
    for (int i = 0; i < 16; i++) opt.priomap[i] = i % 3;
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        printf("[-] Failed to send batch: %s\n", strerror(errno));
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            printf("[-] Failed to recv batch response: %s\n", strerror(errno));
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (err->error != 0 && err->error != -EEXIST) {
                    // Ignore errors to allow the test to proceed
                }
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

struct nlmsghdr *generate_classes(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    struct nlmsghdr *n;
    if (level == 0) {
        n = batch_add_sfq(b, ifindex, parent, TC_H_MAKE(*handle_counter << 16, 0));
        (*handle_counter)++;
        if (b->offset > 1024 * 1024) {
            n->nlmsg_flags |= NLM_F_ACK;
            batch_send(nl_fd, b, n->nlmsg_seq);
            b->offset = 0;
        }
        return n;
    }
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    n = batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 1024 * 1024) {
        n->nlmsg_flags |= NLM_F_ACK;
        batch_send(nl_fd, b, n->nlmsg_seq);
        b->offset = 0;
    }
    
    for (int i = 1; i <= 3; i++) {
        n = generate_classes(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
    return n;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        printf("[-] Failed to create netlink socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        printf("[-] Failed to create packet socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        struct nlmsghdr *n = batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        int handle_counter = 2;
        
        struct nlmsghdr *last_n = n;
        for (int i = 1; i <= 3; i++) {
            last_n = generate_classes(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, i), 6, &handle_counter);
        }
        
        if (b.offset > 0 && last_n) {
            last_n->nlmsg_flags |= NLM_F_ACK;
            if (batch_send(nl_fd, &b, last_n->nlmsg_seq) < 0) {
                printf("[-] batch_send failed\n");
            }
            b.offset = 0;
        }
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        for (int p = 0; p < 16; p++) {
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long target_us = 990000 + (rand_r(&seed) % 20000);
        long sleep_us = target_us - elapsed_us;
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

677/3 2026/08/15 19:18 loop
0m
678/4 2026/08/15 19:18 iteration 0
0m
679/5 2026/08/15 19:18 action merge-repro-c
0m Results:
map[CurrentCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

struct nlmsghdr *batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {0};
    opt.bands = 3;
    for (int i = 0; i < 16; i++) opt.priomap[i] = i % 3;
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        printf("[-] Failed to send batch: %s\n", strerror(errno));
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            printf("[-] Failed to recv batch response: %s\n", strerror(errno));
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (err->error != 0 && err->error != -EEXIST) {
                    // Ignore errors to allow the test to proceed
                }
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

struct nlmsghdr *generate_classes(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    struct nlmsghdr *n;
    if (level == 0) {
        n = batch_add_sfq(b, ifindex, parent, TC_H_MAKE(*handle_counter << 16, 0));
        (*handle_counter)++;
        if (b->offset > 1024 * 1024) {
            n->nlmsg_flags |= NLM_F_ACK;
            batch_send(nl_fd, b, n->nlmsg_seq);
            b->offset = 0;
        }
        return n;
    }
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    n = batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 1024 * 1024) {
        n->nlmsg_flags |= NLM_F_ACK;
        batch_send(nl_fd, b, n->nlmsg_seq);
        b->offset = 0;
    }
    
    for (int i = 1; i <= 3; i++) {
        n = generate_classes(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
    return n;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        printf("[-] Failed to create netlink socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        printf("[-] Failed to create packet socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        struct nlmsghdr *n = batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        int handle_counter = 2;
        
        struct nlmsghdr *last_n = n;
        for (int i = 1; i <= 3; i++) {
            last_n = generate_classes(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, i), 6, &handle_counter);
        }
        
        if (b.offset > 0 && last_n) {
            last_n->nlmsg_flags |= NLM_F_ACK;
            if (batch_send(nl_fd, &b, last_n->nlmsg_seq) < 0) {
                printf("[-] batch_send failed\n");
            }
            b.offset = 0;
        }
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        for (int p = 0; p < 16; p++) {
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long target_us = 990000 + (rand_r(&seed) % 20000);
        long sleep_us = target_us - elapsed_us;
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

680/5 2026/08/15 19:18 action compile-c-prog
0m Results:
map[CompilerError: FormattedReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

struct nlmsghdr *batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {0};
    opt.bands = 3;
    for (int i = 0; i < 16; i++) opt.priomap[i] = i % 3;
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        printf("[-] Failed to send batch: %s\n", strerror(errno));
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            printf("[-] Failed to recv batch response: %s\n", strerror(errno));
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (err->error != 0 && err->error != -EEXIST) {
                    // Ignore errors to allow the test to proceed
                }
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

struct nlmsghdr *generate_classes(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    struct nlmsghdr *n;
    if (level == 0) {
        n = batch_add_sfq(b, ifindex, parent, TC_H_MAKE(*handle_counter << 16, 0));
        (*handle_counter)++;
        if (b->offset > 1024 * 1024) {
            n->nlmsg_flags |= NLM_F_ACK;
            batch_send(nl_fd, b, n->nlmsg_seq);
            b->offset = 0;
        }
        return n;
    }
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    n = batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 1024 * 1024) {
        n->nlmsg_flags |= NLM_F_ACK;
        batch_send(nl_fd, b, n->nlmsg_seq);
        b->offset = 0;
    }
    
    for (int i = 1; i <= 3; i++) {
        n = generate_classes(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
    return n;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        printf("[-] Failed to create netlink socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        printf("[-] Failed to create packet socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        struct nlmsghdr *n = batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        int handle_counter = 2;
        
        struct nlmsghdr *last_n = n;
        for (int i = 1; i <= 3; i++) {
            last_n = generate_classes(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, i), 6, &handle_counter);
        }
        
        if (b.offset > 0 && last_n) {
            last_n->nlmsg_flags |= NLM_F_ACK;
            if (batch_send(nl_fd, &b, last_n->nlmsg_seq) < 0) {
                printf("[-] batch_send failed\n");
            }
            b.offset = 0;
        }
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        for (int p = 0; p < 16; p++) {
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long target_us = 990000 + (rand_r(&seed) % 20000);
        long sleep_us = target_us - elapsed_us;
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

681/5 2026/08/15 19:18 action If
0m Args:
map[CompilerError:]

682/3 2026/08/15 19:18 action run-c-repro
7m Results:
map[CandidateBugTitle: CandidateCrashReport: CandidateReproduced:false ConsoleOutput:[   69.713043][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   69.713053][   T33] audit: type=1400 audit(1786821559.543:201): avc:  denied  { transition } for  pid=5824 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.730447][   T33] audit: type=1400 audit(1786821559.553:202): avc:  denied  { noatsecure } for  pid=5824 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.736764][   T33] audit: type=1400 audit(1786821559.553:203): avc:  denied  { rlimitinh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.742795][   T33] audit: type=1400 audit(1786821559.553:204): avc:  denied  { siginh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.820969][ T1372] ieee802154 phy0 wpan0: encryption failed: -22
[   71.823948][ T1372] ieee802154 phy1 wpan1: encryption failed: -22
[   73.002161][   T33] audit: type=1400 audit(1786821562.833:205): avc:  denied  { write } for  pid=5829 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.066655][   T33] audit: type=1400 audit(1786821562.893:206): avc:  denied  { write } for  pid=5832 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.426922][   T33] audit: type=1400 audit(1786821563.253:207): avc:  denied  { write } for  pid=5835 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.482706][   T33] audit: type=1400 audit(1786821563.313:208): avc:  denied  { write } for  pid=5838 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.047644][   T33] audit: type=1400 audit(1786821563.873:209): avc:  denied  { write } for  pid=5841 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.091438][   T33] audit: type=1400 audit(1786821563.923:210): avc:  denied  { write } for  pid=5844 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:34871' (ED25519) to the list of known hosts.
[   74.747680][   T33] kauditd_printk_skb: 5 callbacks suppressed
[   74.747691][   T33] audit: type=1400 audit(1786821564.573:216): avc:  denied  { create } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   74.769384][   T33] audit: type=1400 audit(1786821564.573:217): avc:  denied  { net_raw } for  pid=5864 comm="syz-executor345" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[   74.776162][   T33] audit: type=1400 audit(1786821564.583:218): avc:  denied  { create } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   74.815193][   T33] audit: type=1400 audit(1786821564.643:219): avc:  denied  { write } for  pid=5874 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.975536][   T33] audit: type=1400 audit(1786821564.803:220): avc:  denied  { write } for  pid=5877 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.049365][   T33] audit: type=1400 audit(1786821564.883:221): avc:  denied  { write } for  pid=5880 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.162012][   T33] audit: type=1400 audit(1786821564.993:222): avc:  denied  { write } for  pid=5883 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.224893][   T33] audit: type=1400 audit(1786821565.053:223): avc:  denied  { write } for  pid=5886 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   77.683101][   T33] audit: type=1400 audit(1786821567.513:224): avc:  denied  { setopt } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   77.699423][   T33] audit: type=1400 audit(1786821567.513:225): avc:  denied  { write } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   82.061164][   T24] cfg80211: failed to load regulatory.db
[  133.261529][ T1372] ieee802154 phy0 wpan0: encryption failed: -22
[  133.263774][ T1372] ieee802154 phy1 wpan1: encryption failed: -22
[+] unshare successful.
[+] lo brought up.
[+] Thread 1 starting race loop...
[+] Thread 0 starting race loop...
[+] Done.
 OtherCrashReports:<nil> StraceOutput:/strace -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f /syz-executor1076932602

<...>
   = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] sendto(4, [[{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=1, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=2, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x02\x00\x01\x00\x01\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x03\x00\x01\x00\x02\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=4, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x04\x00\x01\x00\x03\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=5, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x05\x00\x01\x00\x04\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=6, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x06\x00\x01\x00\x05\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=7, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x07\x00\x01\x00\x06\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=8, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x08\x00\x01\x00\x07\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=9, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x09\x00\x02\x00\x07\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? 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*/, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=13, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x0d\x00\x02\x00\x0b\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=14, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x0e\x00\x03\x00\x0b\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=15, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x0f\x00\x03\x00\x06\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=16, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x10\x00\x01\x00\x0f\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=17, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x11\x00\x02\x00\x0f\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? 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*/, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=98, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x62\x00\x03\x00\x5f\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=99, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x63\x00\x02\x00\x55\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=100, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x64\x00\x01\x00\x63\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], ...], 341136, 0, NULL, 0 <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... sendto resumed>)       = 341136
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] recvfrom(4 <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... recvfrom resumed>, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=3280, nlmsg_pid=-115047763}, {error=0, msg={nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=3280, nlmsg_pid=5875}}], 8192, 0, NULL, NULL) = 36
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] setsockopt(6, SOL_SOCKET, SO_PRIORITY, [0], 4 <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... setsockopt resumed>)   = 0
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>

[host] Command execution timed out after 2m30s
 TestError:]

683/3 2026/08/15 19:25 action truncate-log
0m Results:
map[TruncatedConsoleOutput:[   69.713043][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   69.713053][   T33] audit: type=1400 audit(1786821559.543:201): avc:  denied  { transition } for  pid=5824 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.730447][   T33] audit: type=1400 audit(1786821559.553:202): avc:  denied  { noatsecure } for  pid=5824 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.736764][   T33] audit: type=1400 audit(1786821559.553:203): avc:  denied  { rlimitinh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.742795][   T33] audit: type=1400 audit(1786821559.553:204): avc:  denied  { siginh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.820969][ T1372] ieee802154 phy0 wpan0: encryption failed: -22
[   71.823948][ T1372] ieee802154 phy1 wpan1: encryption failed: -22
[   73.002161][   T33] audit: type=1400 audit(1786821562.833:205): avc:  denied  { write } for  pid=5829 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.066655][   T33] audit: type=1400 audit(1786821562.893:206): avc:  denied  { write } for  pid=5832 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.426922][   T33] audit: type=1400 audit(1786821563.253:207): avc:  denied  { write } for  pid=5835 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.482706][   T33] audit: type=1400 audit(1786821563.313:208): avc:  denied  { write } for  pid=5838 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.047644][   T33] audit: type=1400 audit(1786821563.873:209): avc:  denied  { write } for  pid=5841 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.091438][   T33] audit: type=1400 audit(1786821563.923:210): avc:  denied  { write } for  pid=5844 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:34871' (ED25519) to the list of known hosts.
[   74.747680][   T33] kauditd_printk_skb: 5 callbacks suppressed
[   74.747691][   T33] audit: type=1400 audit(1786821564.573:216): avc:  denied  { create } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   74.769384][   T33] audit: type=1400 audit(1786821564.573:217): avc:  denied  { net_raw } for  pid=5864 comm="syz-executor345" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[   74.776162][   T33] audit: type=1400 audit(1786821564.583:218): avc:  denied  { create } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   74.815193][   T33] audit: type=1400 audit(1786821564.643:219): avc:  denied  { write } for  pid=5874 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.975536][   T33] audit: type=1400 audit(1786821564.803:220): avc:  denied  { write } for  pid=5877 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.049365][   T33] audit: type=1400 audit(1786821564.883:221): avc:  denied  { write } for  pid=5880 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.162012][   T33] audit: type=1400 audit(1786821564.993:222): avc:  denied  { write } for  pid=5883 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.224893][   T33] audit: type=1400 audit(1786821565.053:223): avc:  denied  { write } for  pid=5886 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   77.683101][   T33] audit: type=1400 audit(1786821567.513:224): avc:  denied  { setopt } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   77.699423][   T33] audit: type=1400 audit(1786821567.513:225): avc:  denied  { write } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   82.061164][   T24] cfg80211: failed to load regulatory.db
[  133.261529][ T1372] ieee802154 phy0 wpan0: encryption failed: -22
[  133.263774][ T1372] ieee802154 phy1 wpan1: encryption failed: -22
[+] unshare successful.
[+] lo brought up.
[+] Thread 1 starting race loop...
[+] Thread 0 starting race loop...
[+] Done.
 TruncatedCrashReport: TruncatedStraceOutput:[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] sendto(4, [[{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=1, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=2, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x02\x00\x01\x00\x01\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x03\x00\x01\x00\x02\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=4, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x04\x00\x01\x00\x03\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=5, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x05\x00\x01\x00\x04\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=6, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x06\x00\x01\x00\x05\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=7, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x07\x00\x01\x00\x06\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=8, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x08\x00\x01\x00\x07\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=9, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x09\x00\x02\x00\x07\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=10, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x0a\x00\x03\x00\x07\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=11, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x0b\x00\x02\x00\x06\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=12, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x0c\x00\x01\x00\x0b\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=13, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x0d\x00\x02\x00\x0b\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=14, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x0e\x00\x03\x00\x0b\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=15, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x0f\x00\x03\x00\x06\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=16, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x10\x00\x01\x00\x0f\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=17, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x11\x00\x02\x00\x0f\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=18, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x12\x00\x03\x00\x0f\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=19, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x13\x00\x02\x00\x05\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=20, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x14\x00\x01\x00\x13\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? 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*/, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=95, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x5f\x00\x03\x00\x56\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=96, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x60\x00\x01\x00\x5f\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=97, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x61\x00\x02\x00\x5f\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=98, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x62\x00\x03\x00\x5f\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=99, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x63\x00\x02\x00\x55\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=100, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x64\x00\x01\x00\x63\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], ...], 341136, 0, NULL, 0 <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... sendto resumed>)       = 341136
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] recvfrom(4 <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... recvfrom resumed>, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=3280, nlmsg_pid=-115047763}, {error=0, msg={nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=3280, nlmsg_pid=5875}}], 8192, 0, NULL, NULL) = 36
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] setsockopt(6, SOL_SOCKET, SO_PRIORITY, [0], 4 <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... setsockopt resumed>)   = 0
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>

[host] Command execution timed out after 2m30s
]

684/3 2026/08/15 19:25 agent repro-oracle
4m Model:
best-expensive

Results:
map[Feedback:The reproducer failed to trigger the bug because of a timing mismatch in the race condition.

The bug is a race condition between the destruction of a classful qdisc (e.g., `prio`) and the `perturb_timer` of its child qdisc (e.g., `sfq`). 
When a parent qdisc is destroyed, `__qdisc_destroy` removes the parent from the qdisc hash (`qdisc_hash_del`) BEFORE calling its `destroy` operation. The `destroy` operation of the parent then calls `qdisc_put` on its children, which synchronously destroys them and cancels their timers (e.g., `timer_delete_sync(&q->perturb_timer)` in `sfq_destroy`). 
However, there is a small race window between the parent being removed from the hash and the child's timer being canceled. If the child's timer (`sfq_perturbation`) fires during this window, it calls `sfq_rehash` -> `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent in the hash using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`. Since the parent was already removed from the hash, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

The provided C reproducer fails to trigger this because it sets the `sfq` qdisc's `perturb_period` to 127 seconds (`\x7f\x00\x00\x00` in the netlink payload). It then creates the qdiscs and either replaces them immediately or never destroys them. 
- If it replaces them immediately, the tree is destroyed before the 127-second timer can fire, so the timer is safely canceled.
- If it never destroys them, the timer fires after 127 seconds, but the parent is still in the hash, so no warning is hit.

In the original syzkaller run, this was likely triggered by a cross-program interaction where one program created the qdiscs on a persistent interface, and another program destroyed them 127 seconds later exactly when the timer fired.

To reproduce the bug reliably:
1. Modify the netlink payload to set `perturb_period` to 1 second (`\x01\x00\x00\x00`).
2. Implement a race loop that:
   a. Creates the `prio` root qdisc and the `sfq` child qdisc.
   b. Sleeps for slightly less than 1 second (e.g., `usleep(990000)`).
   c. Destroys the `prio` root qdisc (e.g., via `RTM_DELQDISC` or by replacing the root).
3. Run this loop across multiple threads to increase the chance of the timer firing exactly between `qdisc_hash_del` and `timer_delete_sync`. ProbePassed:false TerminalError: TitleMatches:true]

Instruction:
You are a security researcher with deep Linux kernel background.
Analyze the results of running the generated program.

=== CRITICAL ENVIRONMENT & TARGET CLASSIFICATION ===
Set 'TerminalError' to a descriptive error message ONLY if:
1. The execution failed due to missing hardware device nodes, subsystems, kernel modules, or privilege limits
   that cannot be loaded, created, or bypassed by user-space C code edits in the VM guest.
2. The target source files or functions described in the bug description do not exist in the checked-out codebase,
   meaning the codebase version is mismatched and the target code is absent.

=== CRITICAL PROHIBITIONS ===
- Do NOT classify a run as a terminal failure or assume a bug is fixed based on git log entries, commit titles,
  or commit messages. Reproducibility can ONLY be determined by executing reproducer candidates in the VM.
- Do NOT suggest C code strategies, repairs, or namespace bypasses when setting 'TerminalError'.


=== PHASE 2: BUG REPRODUCTION (EVALUATION) ===
The executed program was a full reproducer candidate attempting to trigger the target bug/crash.
Use this to guide your classification and feedback:
1. If a crash was triggered (Reproduced is true):
   - Determine if the triggered crash matches the expected bug.
   - If you conclude they represent the same underlying bug (the same root cause)
     despite different titles, crash signatures, or call traces, set TitleMatches
     to true and provide a detailed, technical, and verbose explanation of the
     equivalence in the 'Feedback' field.
   - If they do not represent the same bug (a completely unrelated crash/collision),
     set TitleMatches to false and explain the collision in 'Feedback'.
   - If they match exactly, set TitleMatches to true and provide a brief confirmation in 'Feedback'.
2. If the execution was successful (exit 0) WITHOUT a crash (Reproduced is false):
   - The reproduction attempt failed to trigger the bug. Analyze the console/strace output
     to understand why the bug did not trigger (e.g., timing, input arguments, environment setup)
     and provide feedback on how to improve the reproducer logic to trigger the crash.

Critical Diagnostic Rule for Reproduction Failures:
If the reproduction attempt fails (e.g., a system call returns an error, or a
warning/error message appears in the console log), you MUST:
1. Identify the failing system call from the execution trace or strace output.
2. Identify any corresponding warning or error messages in the console log.
3. Immediately search the kernel source tree for the warning message strings or
   the code of the failing system call/subsystem to locate the validation logic.
4. Trace the kernel's validation logic to diagnose the exact constraint violation
   or input mismatch in the generated program.
5. Provide a technical diagnosis in the feedback explaining the exact kernel constraint that was violated and why.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

IsProbe: false
Reproduced: false
Console Output: [   69.713043][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   69.713053][   T33] audit: type=1400 audit(1786821559.543:201): avc:  denied  { transition } for  pid=5824 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.730447][   T33] audit: type=1400 audit(1786821559.553:202): avc:  denied  { noatsecure } for  pid=5824 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.736764][   T33] audit: type=1400 audit(1786821559.553:203): avc:  denied  { rlimitinh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.742795][   T33] audit: type=1400 audit(1786821559.553:204): avc:  denied  { siginh } for  pid=5824 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.820969][ T1372] ieee802154 phy0 wpan0: encryption failed: -22
[   71.823948][ T1372] ieee802154 phy1 wpan1: encryption failed: -22
[   73.002161][   T33] audit: type=1400 audit(1786821562.833:205): avc:  denied  { write } for  pid=5829 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.066655][   T33] audit: type=1400 audit(1786821562.893:206): avc:  denied  { write } for  pid=5832 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.426922][   T33] audit: type=1400 audit(1786821563.253:207): avc:  denied  { write } for  pid=5835 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   73.482706][   T33] audit: type=1400 audit(1786821563.313:208): avc:  denied  { write } for  pid=5838 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.047644][   T33] audit: type=1400 audit(1786821563.873:209): avc:  denied  { write } for  pid=5841 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.091438][   T33] audit: type=1400 audit(1786821563.923:210): avc:  denied  { write } for  pid=5844 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
Warning: Permanently added '[localhost]:34871' (ED25519) to the list of known hosts.
[   74.747680][   T33] kauditd_printk_skb: 5 callbacks suppressed
[   74.747691][   T33] audit: type=1400 audit(1786821564.573:216): avc:  denied  { create } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   74.769384][   T33] audit: type=1400 audit(1786821564.573:217): avc:  denied  { net_raw } for  pid=5864 comm="syz-executor345" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[   74.776162][   T33] audit: type=1400 audit(1786821564.583:218): avc:  denied  { create } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   74.815193][   T33] audit: type=1400 audit(1786821564.643:219): avc:  denied  { write } for  pid=5874 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   74.975536][   T33] audit: type=1400 audit(1786821564.803:220): avc:  denied  { write } for  pid=5877 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.049365][   T33] audit: type=1400 audit(1786821564.883:221): avc:  denied  { write } for  pid=5880 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.162012][   T33] audit: type=1400 audit(1786821564.993:222): avc:  denied  { write } for  pid=5883 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.224893][   T33] audit: type=1400 audit(1786821565.053:223): avc:  denied  { write } for  pid=5886 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   77.683101][   T33] audit: type=1400 audit(1786821567.513:224): avc:  denied  { setopt } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   77.699423][   T33] audit: type=1400 audit(1786821567.513:225): avc:  denied  { write } for  pid=5864 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   82.061164][   T24] cfg80211: failed to load regulatory.db
[  133.261529][ T1372] ieee802154 phy0 wpan0: encryption failed: -22
[  133.263774][ T1372] ieee802154 phy1 wpan1: encryption failed: -22
[+] unshare successful.
[+] lo brought up.
[+] Thread 1 starting race loop...
[+] Thread 0 starting race loop...
[+] Done.

Strace Output: [pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid()                    = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] getpid( <unfinished ...>
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] getpid( <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] sendto(4, [[{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=1, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x01\x00\xff\xff\xff\xff\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=2, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x02\x00\x01\x00\x01\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=3, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x03\x00\x01\x00\x02\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? 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*/, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=98, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x62\x00\x03\x00\x5f\x00\x00\x00\x00\x00\x08\x00\x01\x00\x73\x66\x71\x00\x4c\x00\x02\x00\x01\x00\x00\x00\x01\x00\x00\x00\x7f\x00\x00\x00\x00\x04\x00\x00\x7f\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"...], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=99, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x63\x00\x02\x00\x55\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], [{nlmsg_len=72, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x600, nlmsg_seq=100, nlmsg_pid=5875}, "\x00\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x64\x00\x01\x00\x63\x00\x00\x00\x00\x00\x09\x00\x01\x00\x70\x72\x69\x6f\x00\x00\x00\x00\x18\x00\x02\x00\x03\x00\x00\x00\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00\x01\x02\x00"], ...], 341136, 0, NULL, 0 <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid()                    = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... sendto resumed>)       = 341136
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] recvfrom(4 <unfinished ...>
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... recvfrom resumed>, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=3280, nlmsg_pid=-115047763}, {error=0, msg={nlmsg_len=120, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|0x600, nlmsg_seq=3280, nlmsg_pid=5875}}], 8192, 0, NULL, NULL) = 36
[pid  5885] <... getpid resumed>)       = 5875
[pid  5887] setsockopt(6, SOL_SOCKET, SO_PRIORITY, [0], 4 <unfinished ...>
[pid  5885] getpid( <unfinished ...>
[pid  5887] <... setsockopt resumed>)   = 0
[pid  5885] <... getpid resumed>)       = 5875
[pid  5885] getpid( <unfinished ...>

[host] Command execution timed out after 2m30s

Crash Report: 


685/4 2026/08/15 19:25 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 85149
							output: 42
							thoughts: 1046
						

Thoughts:
**Initial Thoughts on a Syzkaller Bug Report**

Alright, I've got a new syzkaller report here detailing a `WARNING in qdisc_tree_reduce_backlog`. My initial scan tells me this warning specifically triggers when `parentid` is *not* equal to `TC_H_ROOT`. That's a key detail. Looking at the console output, I see some interesting SELinux denials: `avc: denied { create }` and `avc: denied { net_raw }`. These are happening for `pid=5864` (which is `syz-executor345`) with the context `root:sysadm_r:sysadm_t`. The `permissive=1` flag suggests that while these actions were denied, the system is in permissive mode, so they might not have actually prevented the execution path that leads to the warning.

Now, the reproducer itself didn't actually cause a crash; it timed out after a rather lengthy 2 minutes and 30 seconds. This suggests the bug might be a race condition or perhaps a deadlock, rather than a straightforward memory corruption or null pointer dereference. I need to dig into the `strace` output to get a better picture of what the executor was doing.

The `strace` output shows a *lot* of `getpid()` calls. That's a bit unusual in such high volume unless it's part of a deliberate spin loop or, more likely, a mechanism within the reproducer to introduce timing variations for a race. Alongside these `getpid()` calls, I'm seeing a significant number of `sendto()` calls, specifically sending netlink messages. The types are obscured (`NLMSG_???`), but given the context of network schedulers, I'm strongly suspecting these are related to queueing disciplines, likely `RTM_NEWQDISC` or similar operations. The content of these messages also reveals strings like "prio" and "sfq," which are direct clues pointing towards the Soft Queuing discipline (`sfq`) and priority queuing. This confirms my suspicion that the bug is indeed related to `qdisc_tree_reduce_backlog` and potentially its interaction with `sfq_rehash` or `sfq_perturbation`.

The presence of `[+] Thread 1 starting race loop...` in the reproducer's own output is the smoking gun, confirming that the intention here is to trigger a race condition.

My next step is to meticulously examine the bug description provided by syzkaller, paying close attention to the exact line number (`net/sched/sch_api.c:797`) and the function call stack (`qdisc_tree_reduce_backlog+0x3fa/0x4c0`). The fact that the reproducer didn't crash, but timed out, is still a bit perplexing. It could mean the race condition is exceptionally difficult to hit, the timeout is too short to allow the race to manifest a crash, or perhaps the reproducer gets stuck in a non-crashing infinite loop that prevents progress. The repeated `getpid()` calls in `strace` could indeed be part of this spin loop intended to find a race window.

The `sendto` calls, specifically the batch of netlink messages creating `prio` and `sfq` qdiscs, strongly reinforce the idea that the bug lies within the `qdisc_tree_reduce_backlog` function, likely when it's attempting to manage or modify these queueing disciplines under contention. I'll be heading straight to the kernel source code, using tools like `codesearch-definition-source` to pinpoint the exact implementation of `qdisc_tree_reduce_backlog` and `sfq_perturbation` to understand the logic and potential race windows.


686/4 2026/08/15 19:25 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

687/4 2026/08/15 19:25 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 86839
							output: 39
							thoughts: 135
						

Thoughts:
**My Thought Process Regarding the `WARN_ON_ONCE` Condition**

Right, so I'm looking at this `WARN_ON_ONCE(parentid != TC_H_ROOT);` warning, and it's triggered specifically when `qdisc_lookup_rcu` returns `NULL`. This is a critical piece of information. It tells me that the intended parent queuing discipline (qdisc) for the current operation simply wasn't found in the RCU lookup mechanism. However, the warning condition itself is that the `parentid` *wasn't* `TC_H_ROOT`.

This immediately suggests a few potential scenarios. The most straightforward interpretation is that the parent qdisc, which *should* exist (since its ID isn't the root), has been concurrently destroyed. Think about it: if something else in the system decided to tear down that parent qdisc *after* we've established its ID but *before* our RCU lookup successfully found it, we'd end up in this exact situation – a valid, non-root parent ID pointing to nothing.

Another possibility, and this is something I'm actively considering as an expert in this domain, is a staleness issue within the child qdisc's `parent` field. Perhaps the child qdisc's pointer to its parent is out of date. It might be referencing a parent that *used* to exist but has since been removed or replaced. This would also lead to the `qdisc_lookup_rcu` failing to find the expected parent, even though the stored `parentid` suggests it should be there.

Now, I'm tracing the stack. The sequence is `sfq_perturbation` -> `sfq_rehash` -> `qdisc_tree_reduce_backlog`. This sequence is informative. The fact that `sfq_perturbation` is at the top, followed by `sfq_rehash`, points towards operations within the Stochastic Fairness Queuing (SFQ) scheduler. SFQ inherently involves rehashing and reordering elements, so it's plausible that these operations could trigger concurrency issues or expose stale data. The call to `qdisc_tree_reduce_backlog` further reinforces the idea that we're dealing with the management of qdisc structures and their associated backlogs.

Given this, my immediate next step is to dive into the `sfq_perturbation` function. I need to understand precisely how it's interacting with the qdisc tree and what guarantees it *should* be making about the presence of parent qdiscs during its rehashing and perturbation cycles. This is where I expect to find the root cause of why `qdisc_lookup_rcu` is returning `NULL` when `parentid` is not `TC_H_ROOT`.


688/4 2026/08/15 19:25 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_perturbation]

Results:
map[SourceCode: 604:	static void sfq_perturbation(struct timer_list *t)
 605:	{
 606:		struct sfq_sched_data *q = timer_container_of(q, t, perturb_timer);
 607:		struct Qdisc *sch = q->sch;
 608:		spinlock_t *root_lock;
 609:		siphash_key_t nkey;
 610:		int period;
 611:	
 612:		get_random_bytes(&nkey, sizeof(nkey));
 613:		rcu_read_lock();
 614:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 615:		spin_lock(root_lock);
 616:		q->perturbation = nkey;
 617:		if (!q->filter_list && q->tail)
 618:			sfq_rehash(sch);
 619:		spin_unlock(root_lock);
 620:	
 621:		/* q->perturb_period can change under us from
 622:		 * sfq_change() and sfq_destroy().
 623:		 */
 624:		period = READ_ONCE(q->perturb_period);
 625:		if (period)
 626:			mod_timer(&q->perturb_timer, jiffies + period);
 627:		rcu_read_unlock();
 628:	}
 SourceFile:net/sched/sch_sfq.c]

689/4 2026/08/15 19:25 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 87419
							output: 39
							thoughts: 8
						

Thoughts:
**My Thought Process Regarding `sfq_rehash`**

When I encounter `sfq_rehash`, my mind immediately goes to the underlying data structure and the operation it represents. I know that `sfq_rehash` is an internal function within the Stochastic Fairness Queuing (SFQ) algorithm, primarily responsible for managing its hash table. SFQ, as I understand it, is a queuing discipline designed to provide fair bandwidth allocation to different flows. It achieves this fairness by assigning each flow to a "bucket" determined by a hash function.

My immediate concern when I see `sfq_rehash` is: what triggers this operation, and what are its implications? I infer that rehashing is typically performed when the load on the hash table becomes too high, meaning the number of active flows (or "buckets" in SFQ's terminology) is growing, and the existing table size is no longer optimal for performance. This could be due to a surge in new network connections or a significant increase in the number of concurrent flows.

The core of my thought process here revolves around the trade-offs. Rehashing a hash table, especially one that's potentially large and actively used, is not a trivial operation. It involves re-calculating the hash for each existing flow and relocating them to their new positions in a resized table. This process can consume CPU cycles and might even introduce a brief period of latency or contention for the affected flows. Therefore, I'm thinking about how SFQ balances the need for efficient bucket distribution against the overhead of rehashing.

I also consider the specific implementation details that might influence `sfq_rehash`. What is the rehashing strategy? Is it a full rehash, or is there an incremental approach? What are the thresholds that trigger a rehash? Is it a fixed load factor, or is it dynamic? Understanding these parameters helps me assess the performance characteristics of SFQ under varying network conditions. For instance, if rehashing is too aggressive, it could lead to performance degradation during periods of high churn. Conversely, if it's too conservative, the hash table might become inefficient, leading to increased collision rates and degraded fairness.

Furthermore, I'm thinking about the impact on the network flows themselves. While SFQ aims for fairness, the `sfq_rehash` operation could, in theory, momentarily disrupt the flow's placement. I'm mentally evaluating whether this disruption is significant enough to cause noticeable packet loss or increased jitter for critical applications, or if SFQ's design mitigates these effects effectively.

Finally, my overall thought is that `sfq_rehash` is a crucial, albeit potentially costly, mechanism that underpins SFQ's ability to maintain fairness as the number of network flows changes dynamically. It's a testament to the algorithm's adaptability, but also a point where performance tuning and careful consideration of network dynamics are essential.


690/4 2026/08/15 19:25 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

691/4 2026/08/15 19:25 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 88665
							output: 38
							thoughts: 84
						

Thoughts:
**A Deep Dive into the Reproducer's Qdisc Behavior**

Okay, so I'm looking at this reproducer, and it's really going to town creating a *lot* of `prio` and `sfq` qdiscs. This immediately catches my eye, because that's a significant number of network queueing disciplines being instantiated. My mind naturally drifts to the underlying mechanisms. I recall that `sfq_perturbation` is a timer-driven process. This is a crucial detail. It means that the `sfq` qdisc relies on a timer to perform its characteristic perturbation of hash buckets, ensuring fairness over time. Now, the critical question arises: what happens when one of these `sfq` qdiscs is, for whatever reason, destroyed? The code path for destruction would logically involve a cleanup function, and I'm thinking that function is `sfq_destroy`. My immediate thought, the one that really makes me pause and scrutinize the code, is: does `sfq_destroy` *actually* call `del_timer_sync(&q->perturb_timer)`? I need to be absolutely certain about this. If it *doesn't*, or if it calls it incorrectly, that could explain a whole host of issues, perhaps related to dangling timers, resource leaks, or even race conditions when the kernel is trying to manage these rapidly created and destroyed qdiscs. This is the point of divergence where the reproducer's behavior becomes particularly interesting, and where I suspect the root cause of the observed phenomena lies.


692/4 2026/08/15 19:25 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_destroy]

Results:
map[SourceCode: 765:	static void sfq_destroy(struct Qdisc *sch)
 766:	{
 767:		struct sfq_sched_data *q = qdisc_priv(sch);
 768:	
 769:		tcf_block_put(q->block);
 770:		WRITE_ONCE(q->perturb_period, 0);
 771:		timer_delete_sync(&q->perturb_timer);
 772:		sfq_free(q->ht);
 773:		sfq_free(q->slots);
 774:		kfree(q->red_parms);
 775:	}
 SourceFile:net/sched/sch_sfq.c]

693/4 2026/08/15 19:25 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 88974
							output: 38
							thoughts: 592
						

Thoughts:
**My Thoughts on SFQ Perturbation and Qdisc Tree Manipulation**

Alright, so I'm looking at this `timer_delete_sync(&q->perturb_timer)` call and immediately my brain goes to the call chain. `qdisc_tree_reduce_backlog` is being invoked, and that's happening within `sfq_rehash`, which in turn is called from `sfq_perturbation`. This `sfq_perturbation` function, I recall, acquires the `root_lock` via `qdisc_lock(qdisc_root_sleeping(sch))` and then spins on it, before calling `sfq_rehash`.

My immediate concern arises when I consider the context of `qdisc_tree_reduce_backlog`. It iterates over the `sch->parent`. What happens if this `sfq` qdisc, which is being perturbed, is a child of something like a `prio` qdisc, and that `prio` qdisc gets destroyed or replaced?

Now, if the `prio` qdisc is destroyed, it *should* cascade and destroy its children, which would include our `sfq` qdisc. But what if `sfq_perturbation` is chugging along concurrently? I'm thinking, "Is there a race condition here?"

Then I remember the `sfq_destroy` path. `sfq_destroy` itself makes use of `timer_delete_sync`, which is designed to wait for any active timer callbacks to finish. So, if the `sfq` qdisc is being destroyed, that seems safe enough.

However, my real worry is about the case where the `sfq` qdisc itself *isn't* being destroyed, but its *parent* is. If the parent is destroyed, it will indeed destroy its children, and that would trigger `sfq_destroy` on our `sfq` qdisc, which brings us back to the `timer_delete_sync` safety.

But then I pivot. What if the `sfq` qdisc isn't destroyed, but is instead *grafted* to a different parent, or simply unlinked from its current parent? When a qdisc is grafted using `qdisc_graft`, the old child is replaced. If that old child isn't immediately cleaned up – perhaps due to RCU delays or active references – its `parent` field might still point to the *old* parent. If that old parent is now in the process of being destroyed, or has already been destroyed, that's a problem.

I'm specifically thinking about `qdisc_tree_reduce_backlog`. It uses `qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid))`. If the parent has been destroyed, that `qdisc_lookup_rcu` should return NULL. And if it returns NULL, we hit that `WARN_ON_ONCE(parentid != TC_H_ROOT)` condition. This suggests a potential issue when the parent tree structure is being modified while the `sfq` perturbation timer is active.

So, the core of my concern is that `sfq_perturbation` is a timer-driven process. If the qdisc tree structure changes – specifically, if a parent qdisc is destroyed or if an `sfq` qdisc is unlinked/re-parented – while the `sfq`'s perturbation timer is running, the `sfq` qdisc's `parent` pointer might become stale. This could lead to `qdisc_lookup_rcu` failing and triggering the warning, or worse, dereferencing a freed parent. I need to look closely at `qdisc_graft` to see exactly how it handles the `parent` pointer updates and child detachment to fully understand the lifecycle and potential race conditions here.


694/4 2026/08/15 19:25 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_graft]

Results:
map[SourceCode:1091:	static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
1092:			       struct sk_buff *skb, struct nlmsghdr *n, u32 classid,
1093:			       struct Qdisc *new, struct Qdisc *old,
1094:			       struct netlink_ext_ack *extack)
1095:	{
1096:		struct Qdisc *q = old;
1097:		struct net *net = dev_net(dev);
1098:	
1099:		if (parent == NULL) {
1100:			unsigned int i, num_q, ingress;
1101:			struct netdev_queue *dev_queue;
1102:	
1103:			ingress = 0;
1104:			num_q = dev->num_tx_queues;
1105:			if ((q && q->flags & TCQ_F_INGRESS) ||
1106:			    (new && new->flags & TCQ_F_INGRESS)) {
1107:				ingress = 1;
1108:				dev_queue = dev_ingress_queue(dev);
1109:				if (!dev_queue) {
1110:					NL_SET_ERR_MSG(extack, "Device does not have an ingress queue");
1111:					return -ENOENT;
1112:				}
1113:	
1114:				q = rtnl_dereference(dev_queue->qdisc_sleeping);
1115:	
1116:				/* This is the counterpart of that qdisc_refcount_inc_nz() call in
1117:				 * __tcf_qdisc_find() for filter requests.
1118:				 */
1119:				if (!qdisc_refcount_dec_if_one(q)) {
1120:					NL_SET_ERR_MSG(extack,
1121:						       "Current ingress or clsact Qdisc has ongoing filter requests");
1122:					return -EBUSY;
1123:				}
1124:			}
1125:	
1126:			if (dev->flags & IFF_UP)
1127:				dev_deactivate(dev, false);
1128:	
1129:			qdisc_offload_graft_root(dev, new, old, extack);
1130:	
1131:			if (new && new->ops->attach && !ingress)
1132:				goto skip;
1133:	
1134:			if (!ingress) {
1135:				for (i = 0; i < num_q; i++) {
1136:					dev_queue = netdev_get_tx_queue(dev, i);
1137:					old = dev_graft_qdisc(dev_queue, new);
1138:	
1139:					if (new && i > 0)
1140:						qdisc_refcount_inc(new);
1141:					qdisc_put(old);
1142:				}
1143:			} else {
1144:				old = dev_graft_qdisc(dev_queue, NULL);
1145:	
1146:				/* {ingress,clsact}_destroy() @old before grafting @new to avoid
1147:				 * unprotected concurrent accesses to net_device::miniq_{in,e}gress
1148:				 * pointer(s) in mini_qdisc_pair_swap().
1149:				 */
1150:				qdisc_notify(net, skb, n, classid, old, new, extack);
1151:				qdisc_destroy(old);
1152:	
1153:				dev_graft_qdisc(dev_queue, new);
1154:			}
1155:	
1156:	skip:
1157:			if (!ingress) {
1158:				old = rtnl_dereference(dev->qdisc);
1159:				if (new && !new->ops->attach)
1160:					qdisc_refcount_inc(new);
1161:				rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
1162:	
1163:				notify_and_destroy(net, skb, n, classid, old, new, extack);
1164:	
1165:				if (new && new->ops->attach)
1166:					new->ops->attach(new);
1167:			}
1168:	
1169:			if (dev->flags & IFF_UP)
1170:				dev_activate(dev);
1171:		} else {
1172:			const struct Qdisc_class_ops *cops = parent->ops->cl_ops;
1173:			unsigned long cl;
1174:			int err;
1175:	
1176:			/* Only support running class lockless if parent is lockless */
1177:			if (new && (new->flags & TCQ_F_NOLOCK) && !(parent->flags & TCQ_F_NOLOCK))
1178:				qdisc_clear_nolock(new);
1179:	
1180:			if (!cops || !cops->graft)
1181:				return -EOPNOTSUPP;
1182:	
1183:			cl = cops->find(parent, classid);
1184:			if (!cl) {
1185:				NL_SET_ERR_MSG(extack, "Specified class not found");
1186:				return -ENOENT;
1187:			}
1188:	
1189:			if (new && new->ops == &noqueue_qdisc_ops) {
1190:				NL_SET_ERR_MSG(extack, "Cannot assign noqueue to a class");
1191:				return -EINVAL;
1192:			}
1193:	
1194:			if (new &&
1195:			    !(parent->flags & TCQ_F_MQROOT) &&
1196:			    rcu_access_pointer(new->stab)) {
1197:				NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
1198:				return -EINVAL;
1199:			}
1200:			err = cops->graft(parent, cl, new, &old, extack);
1201:			if (err)
1202:				return err;
1203:			notify_and_destroy(net, skb, n, classid, old, new, extack);
1204:		}
1205:		return 0;
1206:	}
 SourceFile:net/sched/sch_api.c]

695/4 2026/08/15 19:25 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 91421
							output: 39
							thoughts: 33
						

Thoughts:
**My Thought Process on Qdisc Grafting**

Alright, so when it comes to grafting a queueing discipline (qdisc), my immediate thought is to trace the entry point. I know that the core action of grafting a qdisc triggers the `cops->graft` function. That’s the fundamental hook that gets invoked.

Then, my mind naturally drills down into the specifics of *which* qdisc is being grafted. For the `prio` (priority) qdisc specifically, I anticipate and recall that a dedicated handler, `prio_graft`, is invoked. This makes perfect sense, as different qdisc types will likely have unique requirements and logic for how they integrate or replace other qdiscs during a graft operation. So, `cops->graft` is the general mechanism, and `prio_graft` is the specialized implementation for the `prio` qdisc.


696/4 2026/08/15 19:25 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_prio.c Name:prio_graft]

Results:
map[SourceCode: 286:	static int prio_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
 287:			      struct Qdisc **old, struct netlink_ext_ack *extack)
 288:	{
 289:		struct prio_sched_data *q = qdisc_priv(sch);
 290:		struct tc_prio_qopt_offload graft_offload;
 291:		unsigned long band = arg - 1;
 292:	
 293:		if (!new) {
 294:			new = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
 295:						TC_H_MAKE(sch->handle, arg), extack);
 296:			if (!new)
 297:				new = &noop_qdisc;
 298:			else
 299:				qdisc_hash_add(new, true);
 300:		}
 301:	
 302:		*old = qdisc_replace(sch, new, &q->queues[band]);
 303:	
 304:		graft_offload.handle = sch->handle;
 305:		graft_offload.parent = sch->parent;
 306:		graft_offload.graft_params.band = band;
 307:		graft_offload.graft_params.child_handle = new->handle;
 308:		graft_offload.command = TC_PRIO_GRAFT;
 309:	
 310:		qdisc_offload_graft_helper(qdisc_dev(sch), sch, new, *old,
 311:					   TC_SETUP_QDISC_PRIO, &graft_offload,
 312:					   extack);
 313:		return 0;
 314:	}
 SourceFile:net/sched/sch_prio.c]

697/4 2026/08/15 19:25 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 92012
							output: 37
							thoughts: 9
						

Thoughts:
**My Thought Process on `qdisc_replace`**

Ah, so I'm encountering the `qdisc_replace` function call. My immediate thought, given my expertise, is to delve into its purpose and implications within the network stack. I'm thinking about what this function *does* at a fundamental level.

It's not just a random function; `qdisc_replace` clearly signifies a **modification to the traffic control queueing discipline (qdisc)**. This means I'm not just adding or deleting a qdisc, but rather *swapping* one out for another, or potentially changing the parameters of an existing one. This is a crucial distinction.

My mind immediately goes to the *context* of this operation. Why would a qdisc need to be replaced? Is it a dynamic adjustment to traffic patterns? Is it part of a reconfiguration scenario, perhaps when an interface comes up or goes down, or when QoS policies are being updated? Understanding the *trigger* for `qdisc_replace` is key to grasping its significance.

I'm also considering the *implications* of this replacement. What happens to the packets currently in the queue being replaced? Are they dropped? Are they requeued into the new qdisc? The behavior here is critical for ensuring data integrity and minimizing packet loss. The choice of the new qdisc itself is also paramount – what are its characteristics? Is it a FIFO, a SFQ, a TBF, or something more sophisticated like CAKE or HTB? The performance and fairness of the network will be directly impacted by this decision.

Furthermore, I'm thinking about the *synchronization* aspects. Network traffic control is a highly concurrent operation. When `qdisc_replace` is called, I need to be assured that the operation is atomic or properly synchronized to prevent race conditions. What locks or mechanisms are in place to ensure that packets aren't being processed by the old qdisc while it's being replaced, or that the new qdisc is fully initialized before it starts accepting traffic?

Finally, I'm mentally running through the potential *error conditions*. What could go wrong during a `qdisc_replace` operation? Could memory allocation fail? Could the specified new qdisc be invalid or not loadable? How are these errors handled and reported?

In essence, my thought process upon seeing `qdisc_replace` is a rapid, layered analysis: What it is, why it's happening, what the consequences are, how it's kept safe, and what might break. It's about understanding the intricate mechanics of network traffic management at a deep, practical level.


698/4 2026/08/15 19:26 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_replace]

Results:
map[SourceCode:1378:	static inline struct Qdisc *qdisc_replace(struct Qdisc *sch, struct Qdisc *new,
1379:						  struct Qdisc **pold)
1380:	{
1381:		struct Qdisc *old;
1382:	
1383:		sch_tree_lock(sch);
1384:		old = *pold;
1385:		*pold = new;
1386:		if (old != NULL)
1387:			qdisc_purge_queue(old);
1388:		sch_tree_unlock(sch);
1389:	
1390:		return old;
1391:	}
 SourceFile:include/net/sch_generic.h]

699/4 2026/08/15 19:26 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 92253
							output: 39
							thoughts: 185
						

Thoughts:
**My Thought Process Unraveling `qdisc_replace` and `sfq_perturbation` Interactions**

Okay, so I'm looking at `qdisc_replace` and immediately my brain flags something about how it handles the `old` qdisc. My initial thought is: does `qdisc_replace` actually modify the `parent` pointer of the old qdisc? It seems like it shouldn't, or at least that's not its primary job.

Then, I trace the flow. If `notify_and_destroy` is invoked (which it would be when replacing a qdisc), it eventually calls `qdisc_destroy(old)`. And `qdisc_destroy`, in turn, calls `qdisc_put(old)`. Now, this is a critical point: the reference counting. If `old` has active references, it won't be immediately destroyed, which is the expected behavior for reference-counted objects.

This leads me to a specific concern about the `sfq_perturbation` mechanism. My immediate question is: does `sfq_perturbation` somehow hold a reference to the `sfq` qdisc? If it did, that could prevent `old` from being destroyed prematurely. However, I quickly correct myself – timers, in general, don't hold direct references to `Qdisc` structures themselves in the way a direct pointer would.

But the asynchronous nature of `sfq_perturbation` is still a nagging issue. If `sfq_perturbation` is indeed running when `qdisc_replace` is happening, what exactly does it do? I recall it acquires a lock. Specifically, it takes `root_lock = qdisc_lock(qdisc_root_sleeping(sch));`.

And that's where I hit another potential dependency: `qdisc_root_sleeping(sch)`. This function, I realize, depends on `sch->parent`. So, if `sfq_perturbation` is active and trying to get this lock, and `qdisc_replace` is in progress, how does the state of `sch->parent` affect `qdisc_root_sleeping`'s ability to find the correct root qdisc while the replacement is happening? I need to dive deeper into `qdisc_root_sleeping` to understand this interaction precisely.


700/4 2026/08/15 19:26 tool codesearch-definition-source
0m Args:
map[ContextFile:include/net/sch_generic.h Name:qdisc_root_sleeping]

Results:
map[SourceCode: 597:	static inline struct Qdisc *qdisc_root_sleeping(const struct Qdisc *qdisc)
 598:	{
 599:		return rcu_dereference_rtnl(qdisc->dev_queue->qdisc_sleeping);
 600:	}
 SourceFile:include/net/sch_generic.h]

701/4 2026/08/15 19:26 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 92562
							output: 37
							thoughts: 327
						

Thoughts:
**My Deep Dive into the SFQ Rehash and Grafting Vulnerability**

As I've been digging into the SFQ (Stochastic Fairness Queuing) implementation, a rather thorny issue has surfaced, and I need to trace its implications carefully. My current focus is on the `sfq_perturbation` function. I've confirmed that it leverages `dev_queue->qdisc_sleeping` to manage its operations. The crucial point here is that `sfq_perturbation` itself *locks the root qdisc of the device*. This is a significant detail.

Following this lock, the function proceeds to call `sfq_rehash(sch)`. Now, within `sfq_rehash`, the call that seems to be at the heart of the problem is `qdisc_tree_reduce_backlog(sch, dropped, drop_len);`. This function, in turn, operates using `sch->parent`.

And here's where my concern truly solidifies: if `sch` has been "grafted out" of the qdisc tree – meaning it's been detached but not yet fully destroyed – its `parent` pointer still holds the *old parent ID*. The problem arises because this old parent might have *already been destroyed*.

If that old parent has indeed been destroyed, then a subsequent call to `qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid))` will return `NULL`. This is the precise condition that triggers the `WARN_ON_ONCE(parentid != TC_H_ROOT)` assertion. This warning tells me something is fundamentally wrong with the parent-child relationship at this point.

I'm now contemplating the lifecycle of a grafted-out qdisc. If `sch` is grafted out, it's no longer part of the main tree. However, I know that `sfq_destroy` is invoked when a qdisc is being destroyed. My current understanding is that when `sch` is grafted out, it's returned as `old` from the `qdisc_replace` operation. Subsequently, `notify_and_destroy` calls `qdisc_destroy(old)`. `qdisc_destroy` then proceeds to call `qdisc_put(old)`.

The critical question that remains for me is: does `qdisc_destroy` actually *wait* for an RCU grace period to complete before finalizing the destruction of `old`? If it doesn't, and the old parent has been destroyed and its resources reclaimed *before* `qdisc_destroy` finishes its work on the grafted-out child, then we have a potential use-after-free scenario or at least a dangling pointer situation leading to that assertion. I need to verify the exact behavior of `qdisc_destroy` in this context.


702/4 2026/08/15 19:26 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:qdisc_destroy]

Results:
map[SourceCode:1133:	void qdisc_destroy(struct Qdisc *qdisc)
1134:	{
1135:		if (qdisc->flags & TCQ_F_BUILTIN)
1136:			return;
1137:	
1138:		__qdisc_destroy(qdisc);
1139:	}
 SourceFile:net/sched/sch_generic.c]

703/4 2026/08/15 19:26 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 93029
							output: 38
							thoughts: 11
						

Thoughts:
**My Thought Process on `__qdisc_destroy`**

Alright, so my immediate inclination is to dive into the internals of `__qdisc_destroy`. I need to understand precisely what happens when a queueing discipline is being torn down. This involves tracing the sequence of operations, examining how resources are reclaimed, and ensuring that no lingering dependencies or memory leaks are introduced. My focus will be on the critical path of destruction, looking for any potential race conditions or edge cases that might arise during this process. I’ll be scrutinizing the deallocation of associated data structures and any critical cleanup routines to confirm the integrity of the system post-destruction.


704/4 2026/08/15 19:26 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_generic.c Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

705/4 2026/08/15 19:26 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 93460
							output: 38
							thoughts: 250
						

Thoughts:
**My Thought Process Unraveling `sfq` Destruction and Perturbation Synchronization**

Okay, let's trace this through. I'm starting with the observation that `__qdisc_destroy` ultimately invokes the specific `destroy` operation for the queue discipline (`qdisc`) in question via `ops->destroy(qdisc)`. In the case of `sfq` (Stochastic Fairness Queuing), this `ops->destroy` pointer points to `sfq_destroy`.

My immediate focus shifts to what `sfq_destroy` actually does. I see it calls `timer_delete_sync(&q->perturb_timer)`. This is a crucial piece of information. The `_sync` suffix strongly suggests a blocking operation, implying that `sfq_destroy` will *not* return until the timer, specifically the `perturb_timer`, has been fully dealt with. This leads me to a critical deduction: the `sfq_perturbation` function, which is likely associated with this timer, absolutely cannot continue execution *after* `sfq_destroy` has completed and returned. The synchronization mechanism is in place to prevent exactly that.

However, the real crux of the issue emerges when I consider a specific edge case: what happens if `sfq_perturbation` is *already* in the process of executing when `sfq_destroy` is called? This is where the `timer_delete_sync` call becomes particularly interesting. It's designed to handle precisely this scenario. If `sfq_perturbation` is running, `timer_delete_sync` will block, patiently waiting for `sfq_perturbation` to finish its current execution.

So, the sequence becomes clear: `sfq_perturbation` runs to completion, and *then* `sfq_destroy` can proceed (or, more accurately, `sfq_destroy` was waiting for `sfq_perturbation` to finish before it could proceed with its own cleanup). Now, while `sfq_perturbation` is executing (and before `sfq_destroy` is fully done), it makes a call to `sfq_rehash`. And within `sfq_rehash`, I find a call to `qdisc_tree_reduce_backlog`.

This is where a potential race condition or dependency issue surfaces. `qdisc_tree_reduce_backlog` needs to look up the parent `qdisc`. The problem arises because `__qdisc_destroy` was called on `old`, which is the `sfq` `qdisc` itself. What if the parent `qdisc` of this `sfq` `qdisc` has *already* been destroyed by the time `sfq_perturbation` is executing `sfq_rehash` and then `qdisc_tree_reduce_backlog`? If the parent is gone, it would have, by definition, initiated the destruction of its children.

This leads me to the specific question: if the parent is, say, a `prio` (priority) `qdisc`, and its `destroy` function (`prio_destroy`) has already been invoked and completed, then its child `sfq` `qdisc` is in a precarious state. The question is whether the `sfq_perturbation` (and subsequently `sfq_rehash` and `qdisc_tree_reduce_backlog`) can safely operate when its parent might be in the process of being destroyed or has already been destroyed, especially given the explicit synchronization (`timer_delete_sync`) that was meant to prevent `sfq_perturbation` from running *after* `sfq_destroy`. The interaction between the timer's active execution and the parent's potential destruction is the core of my current concern.


706/4 2026/08/15 19:26 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_prio.c Name:prio_destroy]

Results:
map[SourceCode: 164:	static void
 165:	prio_destroy(struct Qdisc *sch)
 166:	{
 167:		int prio;
 168:		struct prio_sched_data *q = qdisc_priv(sch);
 169:	
 170:		tcf_block_put(q->block);
 171:		prio_offload(sch, NULL);
 172:		for (prio = 0; prio < q->bands; prio++)
 173:			qdisc_put(q->queues[prio]);
 174:	}
 SourceFile:net/sched/sch_prio.c]

707/4 2026/08/15 19:26 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 93926
							output: 42
							thoughts: 1745
						

Thoughts:
**A Deep Dive into a Qdisc Destruction Race Condition**

I've been digging into a rather insidious race condition that occurs during the destruction of a `prio` qdisc that has an `sfq` qdisc as its child. It all seems to hinge on the precise timing of when a parent qdisc is removed from the qdisc hash table versus when its child's internal timer might fire.

Here's how I'm piecing it together: The whole mess starts when `prio_destroy` is invoked. This function, in turn, calls `qdisc_put` on the `sfq` child. `qdisc_put` is smart; it decrements a reference count. If that count hits zero, it's supposed to initiate the destruction of the qdisc. However, it doesn't immediately call `qdisc_destroy` if there are other outstanding references.

This is where my initial confusion arose: who else would be holding a reference to the `sfq`? Usually, no one. But the problem isn't about `sfq` being held up, it's about the *parent's* removal from the hash.

So, let's trace the destruction of `prio`:
1. `qdisc_destroy(prio)` is called.
2. This leads to `__qdisc_destroy(prio)`.
3. Crucially, `__qdisc_destroy(prio)` first calls `qdisc_hash_del(prio)`. At this point, `prio` is officially *gone* from the qdisc hash table, meaning it's no longer discoverable by its assigned handle.
4. Only *after* removing `prio` from the hash does `__qdisc_destroy(prio)` call the qdisc's specific destroy operation, which in this case is `prio_destroy`.
5. `prio_destroy` then calls `qdisc_put(sfq)`, as I initially observed.
6. `qdisc_put(sfq)` eventually calls `qdisc_destroy(sfq)`.
7. This leads to `__qdisc_destroy(sfq)`.
8. Inside `__qdisc_destroy(sfq)`, the `sfq_destroy(sfq)` function is called.
9. `sfq_destroy` then calls `timer_delete_sync(&q->perturb_timer)`. This is meant to cleanly shut down the `sfq`'s perturbation timer.

Now, here's where the race comes in. Imagine that concurrently, the `sfq_perturbation` timer (which manages the `sfq`'s rehashing mechanism) decides to fire. This timer, when it fires, triggers `sfq_rehash`.

`sfq_rehash` does some work, and one of its tasks is to call `qdisc_tree_reduce_backlog(sfq, dropped, drop_len)`. This function, as part of its operation, needs to identify the parent qdisc of the `sfq`. It retrieves the parent's handle (`parentid = sfq->parent`) and then attempts to look up this parent in the hash table using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`.

But here's the kicker: because `prio` was removed from the hash table in step 3 *before* `sfq_destroy` even got to the point of trying to synchronize its timer, `qdisc_lookup_rcu` in `qdisc_tree_reduce_backlog` will find *nothing*. It will return NULL.

And then, `WARN_ON_ONCE(parentid != TC_H_ROOT)` is triggered because the `parentid` is certainly not `TC_H_ROOT` (it's the handle of the `prio` qdisc), yet `qdisc_lookup_rcu` failed to find it. This is the exact sequence that explains the observed bug.

The fundamental issue is that `qdisc_tree_reduce_backlog` implicitly assumes that if a child qdisc has a parent, that parent must *always* be present and discoverable in the qdisc hash. However, the destruction path for a `prio` qdisc violates this assumption by removing the parent from the hash *before* all its children's internal operations (like timer callbacks) have completed or been cleanly synchronized.

I was initially puzzled why my reproducer wasn't consistently crashing. It's a classic race condition, of course. The `sfq_perturbation` timer has to fire in that minuscule window *after* `prio` is `qdisc_hash_del`ed but *before* `timer_delete_sync(&q->perturb_timer)` has completed its waiting. That's a very tight window to hit.

Looking at the reproducer's `strace`, it seems to be setting up the `prio` and `sfq` qdiscs and then aggressively deleting the `prio` in a loop. The `sfq`'s `perturb_period` is likely set to a small value, increasing the frequency of its timer firing, thereby increasing the odds of hitting that race window.

A secondary thought: does `sfq_rehash` actually cause packet drops in a scenario where the `sfq` is relatively empty? If `dropped` is zero, `qdisc_tree_reduce_backlog` might behave differently. However, the `WARN_ON_ONCE` is triggered based on the lookup failure itself, regardless of whether packets were actually dropped. The problematic call to `qdisc_lookup_rcu` still happens.


708/4 2026/08/15 19:26 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

709/4 2026/08/15 19:26 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 96315
							output: 38
							thoughts: 1992
						

Thoughts:
**My Thoughts on the `qdisc_tree_reduce_backlog` Issue**

It seems I've stumbled upon a rather subtle bug, and my initial confusion stemmed from how `qdisc_tree_reduce_backlog` was being invoked. The core of the problem, as I'm now realizing, is that this function is called even when there are no packets (`n == 0`). This means it will proceed to traverse the qdisc tree and attempt to look up the parent. If, at that point, the `sch` pointer is NULL, it triggers the warning I observed. The critical insight here is that we don't even need actual packets queued in the `sfq` qdisc to hit this condition; the bug can be triggered solely by the timer firing at a very specific, unfortunate moment.

Now, why didn't my reproducer consistently trigger this warning? I've been examining the `strace` output, and it's been quite illuminating. The reproducer involves creating a `prio` qdisc, then an `sfq` qdisc, and potentially deleting the `prio` qdisc. I was initially looking at the `nlmsg_type` values, specifically `RTM_NEWQDISC` (0x24) and `RTM_DELQDISC` (0x25). However, it turns out that all the messages in my `strace` were actually `RTM_NEWQDISC`. The key flag here is `NLM_F_REPLACE | NLM_F_CREATE` (0x600).

This `REPLACE | CREATE` flag is crucial. When used with the same qdisc handle, it effectively replaces the existing qdisc. My reproducer was creating a series of `prio` qdiscs at different root handles (`1:0`, `2:0`, `3:0`, and so on, up to 100 in my test). I was initially assuming these were all separate root qdiscs. However, looking closer at the `tcmsg` struct within the netlink messages, I see that while the handles are distinct (`1:0`, `2:0`, etc.), the `tcm_parent` is often set to `TC_H_ROOT` for the initial `prio` qdiscs.

But then, subsequent `RTM_NEWQDISC` messages were creating `prio` qdiscs not as roots, but as children of other qdiscs, with parents like `1:1`, `1:2`, `1:3`, and so on. This means the reproducer was actually building a fairly deep and complex tree of `prio` and `sfq` qdiscs. My mistake was not fully appreciating the implication of `NLM_F_REPLACE | NLM_F_CREATE` when applied to the *root* qdisc of an interface. If the interface only has one root qdisc, then creating a new root qdisc will, in fact, replace the old one, leading to the destruction of the entire tree beneath it.

The reproducer was indeed creating these qdiscs in batches, and it wasn't explicitly *deleting* them in the traditional sense. The replacement mechanism was handling the destruction. When the entire tree is destroyed, `qdisc_destroy` is called. My initial thought was that this destruction might be recursive, but the real issue lies in the order of operations within `__qdisc_destroy`.

Crucially, `__qdisc_destroy` calls `qdisc_hash_del(qdisc)` *before* it calls `ops->destroy(qdisc)`. This means the qdisc is removed from the hash table *before* its destructor is executed. When the root qdisc is destroyed, it's removed from the hash. Then its `destroy` function is called, which in turn calls `qdisc_put` on its children. `qdisc_put` eventually calls `qdisc_destroy` on the child, which again removes it from the hash *before* its destructor runs.

This creates a massive window for the race condition. From the moment the *root* qdisc is removed from the hash until the `sfq_destroy` function of a child qdisc finishes its `timer_delete_sync` operation, the timer can fire. If the timer fires during this window, it will attempt to look up its parent. Since the parent has already been removed from the hash by the destruction process, `qdisc_lookup_rcu` will return NULL, leading directly to the observed warning.

So, why didn't my reproducer hit the warning more often? The most likely explanation is that the timer simply wasn't firing at the exact right moment. The timer is set to fire after a `perturb_period`. Examining the `sfq` netlink message, I see the `perturb_period` being set to `127` (0x7f). This value, as I've now confirmed, is in *seconds*. A 127-second interval is quite long, making the exact timing of the timer firing within the destruction window less probable. My reproducer was likely destroying the tree too quickly relative to the timer's long interval, or the timer just wasn't scheduled to fire within that narrow, but significant, race window.


710/4 2026/08/15 19:27 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

711/4 2026/08/15 19:27 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 100307
							output: 39
							thoughts: 3322
						

Thoughts:
**The Inner Workings of the Bug: A Deep Dive into Qdisc Timers and Race Conditions**

Okay, so I'm trying to figure out this bug in the network scheduler, specifically related to qdisc timers. The core of the problem seems to stem from a timer that's supposed to fire after a certain period, but under specific circumstances, it fires when it shouldn't, leading to a warning in `qdisc_tree_reduce_backlog`.

My initial thought process was centered around the `perturb_period`. The reproducer sets this value, and the netlink message shows it as `\x7f\x00\x00\x00`, which translates to 127. This means the timer is set to fire 127 seconds in the future. My first immediate concern was: how can a timer set for 127 seconds trigger a race condition within the reproducer's "race window"? The reproducer, according to its timeout, only runs for about 2 minutes and 30 seconds (150 seconds). So, 127 seconds *should* fall within that window.

Then, I started thinking about the lifecycle of a qdisc. When a qdisc is destroyed, its associated timers are also supposed to be deleted using `timer_delete_sync`. This is a crucial point. If the reproducer is constantly replacing qdiscs, as indicated by the loop in the `strace`, then the old qdiscs *should* be destroyed, and their timers cancelled. This would prevent the timer from ever firing.

This led me to question: "What if the qdisc is *not* destroyed?" If the reproducer creates the qdiscs and then just waits, and doesn't actively destroy them, the timer would indeed fire after 127 seconds. But then the question becomes, why would this lead to the specific warning I'm seeing?

The key insight here came from looking at the `strace` output more carefully and cross-referencing it with the bug description. The reproducer is attempting to create `packet_socket`s and needs `CAP_NET_RAW`. The `audit` logs show SELinux denials for this, but crucially, SELinux is in `permissive=1` mode. This means the denials are logged, but the actions are *allowed*. The `strace` then confirms that the netlink messages to create the qdiscs are succeeding, indicated by an `error=0` in the `recvfrom` call. So, the qdiscs *are* being successfully created.

The reproducer then seems to enter a loop, calling `getpid()` and `setsockopt(SO_PRIORITY, ...)`. The `SO_PRIORITY` call struck me as odd, as it doesn't directly interact with the qdisc logic itself; it just sets a socket priority. This made me wonder if the reproducer was *actually* trying to trigger the race condition or if it was just stuck in a loop after a successful setup.

The stack trace of the warning, `sfq_rehash` -> `sfq_perturbation` -> `call_timer_fn`, strongly suggests the timer *must* fire. If the timer fires, it means `perturb_period` is effective, and the qdisc it's attached to wasn't destroyed. So, if the reproducer *isn't* destroying the qdiscs, the timer fires. But if the qdiscs aren't destroyed, their parents also aren't destroyed, and the parent would still be found in the hash table, preventing the `qdisc_lookup_rcu` from returning NULL and thus avoiding the warning.

This led me to consider a race condition during the destruction of the parent. If the timer fires *exactly* when the parent is being removed from the hash table, that could explain it. However, the reproducer's current `strace` snippet doesn't show any destruction messages, making this a difficult scenario to trigger deliberately with the provided reproducer.

Then, a more subtle possibility emerged: **a reference leak**. If the child qdisc (`sfq` in this case) has an extra, unreleased reference, then when its parent is destroyed, the parent calls `qdisc_put` on the child. The child's reference count would drop, but not to zero. The child would survive, and crucially, its timer would remain active. Later, when this timer fires, it would attempt to look up its parent, which has already been destroyed and removed from the hash. `qdisc_lookup_rcu` would return NULL, and *that's* when the warning would be triggered. This scenario would also explain why the reproducer might seem to "time out" – it's not because the bug isn't happening, but because the conditions for the warning are met *after* the apparent timeout, possibly due to a delayed timer firing.

My focus then shifted to examining the code for potential reference leaks, particularly in how qdiscs are managed during grafting and destruction within `prio` and `sfq`. The fact that `prio_graft` doesn't seem to increment the refcount of the *new* qdisc being grafted is a red flag, and I'm digging deeper into that specific code path to see if that's where the problem lies.


712/4 2026/08/15 19:27 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_prio.c Name:prio_graft]

Results:
map[SourceCode: 286:	static int prio_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
 287:			      struct Qdisc **old, struct netlink_ext_ack *extack)
 288:	{
 289:		struct prio_sched_data *q = qdisc_priv(sch);
 290:		struct tc_prio_qopt_offload graft_offload;
 291:		unsigned long band = arg - 1;
 292:	
 293:		if (!new) {
 294:			new = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
 295:						TC_H_MAKE(sch->handle, arg), extack);
 296:			if (!new)
 297:				new = &noop_qdisc;
 298:			else
 299:				qdisc_hash_add(new, true);
 300:		}
 301:	
 302:		*old = qdisc_replace(sch, new, &q->queues[band]);
 303:	
 304:		graft_offload.handle = sch->handle;
 305:		graft_offload.parent = sch->parent;
 306:		graft_offload.graft_params.band = band;
 307:		graft_offload.graft_params.child_handle = new->handle;
 308:		graft_offload.command = TC_PRIO_GRAFT;
 309:	
 310:		qdisc_offload_graft_helper(qdisc_dev(sch), sch, new, *old,
 311:					   TC_SETUP_QDISC_PRIO, &graft_offload,
 312:					   extack);
 313:		return 0;
 314:	}
 SourceFile:net/sched/sch_prio.c]

713/4 2026/08/15 19:27 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 104187
							output: 38
							thoughts: 45
						

Thoughts:
**My Thought Process Regarding `tc_modify_qdisc` and Refcounting**

Okay, so my initial thought, or rather, a point of immediate inquiry that has just surfaced in my mind, is about the reference counting mechanism within the `tc_modify_qdisc` function. Specifically, I'm pondering whether this function, `tc_modify_qdisc`, is indeed responsible for incrementing the reference count of a queuing discipline (qdisc) if the operation involving `cops->graft` is successful.

This question arises because, in my experience, the integrity of resource management, particularly in kernel-level operations like network traffic control, hinges critically on accurate reference counting. A failure to properly increment or decrement these counts can lead to dangling pointers, double frees, or memory leaks, all of which are severe issues.

Therefore, my immediate next step, my instinct as an expert in this domain, is to delve into the source code. I need to scrutinize the implementation details of both `tc_modify_qdisc` and, crucially, the `qdisc_graft` function it likely calls or interacts with. It's within these functions that I expect to find the explicit logic governing refcount modifications. I'm looking for lines of code that clearly show an `atomic_inc` or similar operation tied to a successful graft. If `tc_modify_qdisc` itself doesn't directly increment it, I'll trace the call stack to `qdisc_graft` to confirm where that responsibility lies. This is a fundamental check to ensure the system's stability and predictable behavior.


714/4 2026/08/15 19:27 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_graft]

Results:
map[SourceCode:1091:	static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
1092:			       struct sk_buff *skb, struct nlmsghdr *n, u32 classid,
1093:			       struct Qdisc *new, struct Qdisc *old,
1094:			       struct netlink_ext_ack *extack)
1095:	{
1096:		struct Qdisc *q = old;
1097:		struct net *net = dev_net(dev);
1098:	
1099:		if (parent == NULL) {
1100:			unsigned int i, num_q, ingress;
1101:			struct netdev_queue *dev_queue;
1102:	
1103:			ingress = 0;
1104:			num_q = dev->num_tx_queues;
1105:			if ((q && q->flags & TCQ_F_INGRESS) ||
1106:			    (new && new->flags & TCQ_F_INGRESS)) {
1107:				ingress = 1;
1108:				dev_queue = dev_ingress_queue(dev);
1109:				if (!dev_queue) {
1110:					NL_SET_ERR_MSG(extack, "Device does not have an ingress queue");
1111:					return -ENOENT;
1112:				}
1113:	
1114:				q = rtnl_dereference(dev_queue->qdisc_sleeping);
1115:	
1116:				/* This is the counterpart of that qdisc_refcount_inc_nz() call in
1117:				 * __tcf_qdisc_find() for filter requests.
1118:				 */
1119:				if (!qdisc_refcount_dec_if_one(q)) {
1120:					NL_SET_ERR_MSG(extack,
1121:						       "Current ingress or clsact Qdisc has ongoing filter requests");
1122:					return -EBUSY;
1123:				}
1124:			}
1125:	
1126:			if (dev->flags & IFF_UP)
1127:				dev_deactivate(dev, false);
1128:	
1129:			qdisc_offload_graft_root(dev, new, old, extack);
1130:	
1131:			if (new && new->ops->attach && !ingress)
1132:				goto skip;
1133:	
1134:			if (!ingress) {
1135:				for (i = 0; i < num_q; i++) {
1136:					dev_queue = netdev_get_tx_queue(dev, i);
1137:					old = dev_graft_qdisc(dev_queue, new);
1138:	
1139:					if (new && i > 0)
1140:						qdisc_refcount_inc(new);
1141:					qdisc_put(old);
1142:				}
1143:			} else {
1144:				old = dev_graft_qdisc(dev_queue, NULL);
1145:	
1146:				/* {ingress,clsact}_destroy() @old before grafting @new to avoid
1147:				 * unprotected concurrent accesses to net_device::miniq_{in,e}gress
1148:				 * pointer(s) in mini_qdisc_pair_swap().
1149:				 */
1150:				qdisc_notify(net, skb, n, classid, old, new, extack);
1151:				qdisc_destroy(old);
1152:	
1153:				dev_graft_qdisc(dev_queue, new);
1154:			}
1155:	
1156:	skip:
1157:			if (!ingress) {
1158:				old = rtnl_dereference(dev->qdisc);
1159:				if (new && !new->ops->attach)
1160:					qdisc_refcount_inc(new);
1161:				rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
1162:	
1163:				notify_and_destroy(net, skb, n, classid, old, new, extack);
1164:	
1165:				if (new && new->ops->attach)
1166:					new->ops->attach(new);
1167:			}
1168:	
1169:			if (dev->flags & IFF_UP)
1170:				dev_activate(dev);
1171:		} else {
1172:			const struct Qdisc_class_ops *cops = parent->ops->cl_ops;
1173:			unsigned long cl;
1174:			int err;
1175:	
1176:			/* Only support running class lockless if parent is lockless */
1177:			if (new && (new->flags & TCQ_F_NOLOCK) && !(parent->flags & TCQ_F_NOLOCK))
1178:				qdisc_clear_nolock(new);
1179:	
1180:			if (!cops || !cops->graft)
1181:				return -EOPNOTSUPP;
1182:	
1183:			cl = cops->find(parent, classid);
1184:			if (!cl) {
1185:				NL_SET_ERR_MSG(extack, "Specified class not found");
1186:				return -ENOENT;
1187:			}
1188:	
1189:			if (new && new->ops == &noqueue_qdisc_ops) {
1190:				NL_SET_ERR_MSG(extack, "Cannot assign noqueue to a class");
1191:				return -EINVAL;
1192:			}
1193:	
1194:			if (new &&
1195:			    !(parent->flags & TCQ_F_MQROOT) &&
1196:			    rcu_access_pointer(new->stab)) {
1197:				NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
1198:				return -EINVAL;
1199:			}
1200:			err = cops->graft(parent, cl, new, &old, extack);
1201:			if (err)
1202:				return err;
1203:			notify_and_destroy(net, skb, n, classid, old, new, extack);
1204:		}
1205:		return 0;
1206:	}
 SourceFile:net/sched/sch_api.c]

715/4 2026/08/15 19:27 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 106087
							output: 38
							thoughts: 45
						

Thoughts:
**My Thought Process Regarding `notify_and_destroy` and `qdisc_destroy`**

Okay, so I'm looking at this `notify_and_destroy` function, and my initial understanding is that it's going to handle some kind of cleanup, likely involving a queueing discipline (`qdisc`). I see it calling `qdisc_destroy(old)`, which seems straightforward – destroy the `old` qdisc.

But then, a flicker of doubt. I pause. Does `qdisc_destroy(old)` *itself* handle dropping the reference count on the qdisc? My expertise suggests that reference counting is a fundamental mechanism for managing the lifecycle of objects in this kind of kernel-level code. It’s not always the case that a "destroy" function *also* manages the refcount decrement; sometimes, the caller is responsible for that before calling destroy, or the destroy function might only perform cleanup *after* the refcount has reached zero.

To resolve this uncertainty, my next logical step is to dive into the implementation of `notify_and_destroy`. I need to examine its code directly to see *precisely* what it does with `old` *before* it calls `qdisc_destroy(old)`. This will reveal whether `notify_and_destroy` is responsible for dereferencing `old` *before* passing it off for destruction, or if `qdisc_destroy` is intended to handle the refcount decrement as part of its operation. This is critical for understanding the object's lifecycle and avoiding potential use-after-free bugs or double-frees.


716/4 2026/08/15 19:28 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:notify_and_destroy]

Results:
map[SourceCode:1057:	static void notify_and_destroy(struct net *net, struct sk_buff *skb,
1058:				       struct nlmsghdr *n, u32 clid,
1059:				       struct Qdisc *old, struct Qdisc *new,
1060:				       struct netlink_ext_ack *extack)
1061:	{
1062:		if (new || old)
1063:			qdisc_notify(net, skb, n, clid, old, new, extack);
1064:	
1065:		if (old)
1066:			qdisc_put(old);
1067:	}
 SourceFile:net/sched/sch_api.c]

717/4 2026/08/15 19:28 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 106361
							output: 39
							thoughts: 1052
						

Thoughts:
**My Thought Process Unraveling the Reproducer and the Bug**

Okay, so I'm looking at this `qdisc_put(old)` call, and I'm thinking, "If `old` is grafted out, its reference count should drop by one. If that refcount hits zero, it gets destroyed. And when it's destroyed, `sfq_destroy` is called, which cleans up the timer. So, logically, there shouldn't be any reference leaks."

Then the big question hits me: "If there's no leak, why did the reproducer time out?" I'm looking at the reproducer, and it's sending a massive batch of `RTM_NEWQDISC` messages. After that, it just enters a loop calling `getpid()` and `setsockopt()`. Crucially, *it never deletes any of the qdiscs*. So, naturally, these qdiscs are staying alive.

The timer is set to fire after 127 seconds. When that timer finally goes off, it triggers `qdisc_tree_reduce_backlog`. This function, in turn, looks up the parent of the qdisc. Because the parent was *never deleted* by the reproducer, it's still present in the hash table. `qdisc_lookup_rcu` finds it and returns it. Consequently, the warning condition, which would indicate a problem, is *not* met.

This leads me to a critical point: "If the reproducer never deletes the qdiscs, how did syzkaller manage to hit the bug in the first place?" Syzkaller, by its nature, generates random sequences of system calls. It's entirely possible that syzkaller's execution path involved a `RTM_DELQDISC` in a separate thread, or perhaps it replaced the root qdisc. But the *specific C reproducer* that was extracted from syzkaller might be missing that crucial `RTM_DELQDISC` operation.

I need to scrutinize the netlink messages within the C reproducer's strace. I see messages with `nlmsg_type=0x24`, which is `RTM_NEWQDISC`. The flags `NLM_F_REQUEST|0x600` are also present, where `0x600` signifies `NLM_F_REPLACE | NLM_F_CREATE`. This is interesting. If it's sending `NLM_F_REPLACE | NLM_F_CREATE` with the *same handle*, it implies a replacement.

However, the handles being used are `1:0`, `2:0`, `3:0`, and so on, up to `100:0`. This means it's creating 100 distinct qdiscs. Now I'm tracing the parent relationships: the parent of `2:0` is `1:1`, the parent of `3:0` is `1:2`, the parent of `4:0` is `1:3`. This pattern continues: `5:0`'s parent is `1:4`, `6:0`'s parent is `1:5`, `7:0`'s parent is `1:6`, and `8:0`'s parent is `1:7`.

This is where it clicks: By default, the `prio` qdisc only has 3 bands! If it's trying to attach qdiscs to `1:4`, `1:5`, `1:6`, or `1:7`, those attachments *should fail* because the band index is out of bounds. I need to re-examine the `prio_graft` function. It calculates the band as `unsigned long band = arg - 1;`. The critical question is: does `prio_graft` actually check if `band >= q->bands`? I need to look at that code again very carefully.


718/4 2026/08/15 19:28 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_prio.c Name:prio_graft]

Results:
map[SourceCode: 286:	static int prio_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
 287:			      struct Qdisc **old, struct netlink_ext_ack *extack)
 288:	{
 289:		struct prio_sched_data *q = qdisc_priv(sch);
 290:		struct tc_prio_qopt_offload graft_offload;
 291:		unsigned long band = arg - 1;
 292:	
 293:		if (!new) {
 294:			new = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
 295:						TC_H_MAKE(sch->handle, arg), extack);
 296:			if (!new)
 297:				new = &noop_qdisc;
 298:			else
 299:				qdisc_hash_add(new, true);
 300:		}
 301:	
 302:		*old = qdisc_replace(sch, new, &q->queues[band]);
 303:	
 304:		graft_offload.handle = sch->handle;
 305:		graft_offload.parent = sch->parent;
 306:		graft_offload.graft_params.band = band;
 307:		graft_offload.graft_params.child_handle = new->handle;
 308:		graft_offload.command = TC_PRIO_GRAFT;
 309:	
 310:		qdisc_offload_graft_helper(qdisc_dev(sch), sch, new, *old,
 311:					   TC_SETUP_QDISC_PRIO, &graft_offload,
 312:					   extack);
 313:		return 0;
 314:	}
 SourceFile:net/sched/sch_prio.c]

719/4 2026/08/15 19:28 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 107971
							output: 38
							thoughts: 31
						

Thoughts:
**My Realization about `prio_graft` and `cops->find`**

Ah, I see a potential issue here. My initial understanding or implementation of `prio_graft` seems to be missing a crucial check. I was under the impression it would verify if `band` is less than `q->bands`. However, I'm now realizing that this specific check is *not* present within `prio_graft`. This is quite significant because, conversely, I know for a fact that `cops->find` *does* include this `band < q->bands` validation. This discrepancy is certainly something I need to address.


720/4 2026/08/15 19:28 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_prio.c Name:prio_find]

Results:
map[SourceCode: 325:	static unsigned long prio_find(struct Qdisc *sch, u32 classid)
 326:	{
 327:		struct prio_sched_data *q = qdisc_priv(sch);
 328:		unsigned long band = TC_H_MIN(classid);
 329:	
 330:		if (band - 1 >= q->bands)
 331:			return 0;
 332:		return band;
 333:	}
 SourceFile:net/sched/sch_prio.c]

721/4 2026/08/15 19:28 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 108186
							output: 38
							thoughts: 1098
						

Thoughts:
**The Root of the Problem: A Race Condition in Qdisc Management**

I've been digging into this issue, and I think I've finally pinpointed the core problem. It all starts with how `prio_find` and `qdisc_graft` interact, specifically concerning invalid band numbers. My initial thought was that if `prio_find` returns 0 because `band - 1 >= q->bands`, then `qdisc_graft` would fail. This would naturally prevent grafting to non-existent bands like `1:4` or `1:5`. However, the `strace` output was confusing me because it showed `error=0` for the entire batch of operations, despite these apparent failures.

I realized that Netlink's ACK mechanism might be masking individual errors when messages are sent in a batch. Even if one operation fails, the ACK for the entire batch might still report success. This led me back to the `WARNING in qdisc_tree_reduce_backlog` message, specifically the `parentid != TC_H_ROOT` and `qdisc_lookup_rcu` returning NULL.

The key to understanding this inconsistency was realizing that the reproducer wasn't just a single-threaded operation. It's running a race condition between two threads! Thread 0 seems to be sending the batch of `RTM_NEWQDISC` messages, creating the qdisc tree. Thread 1, on the other hand, was initially unclear. I suspected `setsockopt(SO_PRIORITY)`, but that seemed too simplistic and unrelated to qdisc destruction.

Then it hit me: what if Thread 1 is also sending `RTM_NEWQDISC` messages, but crucially, with the `NLM_F_REPLACE | NLM_F_CREATE` flags, specifically targeting `1:0` (the root `prio` qdisc)? This would effectively replace the root qdisc! When the root qdisc is replaced, the *old* root qdisc is destroyed. This destruction propagates down the entire tree, including the `sfq` qdisc that Thread 0 had just grafted.

This scenario perfectly explains the observed behavior: Thread 0 builds the tree, Thread 1 replaces the root, triggering the destruction of the old tree. During this destruction, specifically in `__qdisc_destroy` and `prio_destroy`, the `sfq` qdisc is cleaned up. My concern then shifted to `sfq_destroy` and its call to `timer_delete_sync(&q->perturb_timer)`. If this timer were to fire *exactly* between the removal of the old `prio` qdisc from the hash and the synchronization of its timer, it would lead to the warning I'm seeing.

However, there's a lingering doubt: the timer is set to fire after a substantial 127 seconds. This seems far too long to occur within the tight race window of microseconds. I'm still trying to understand why this timer would fire at all in this context, and I'm revisiting the `sfq_change` function to look for any potential timer manipulation that might occur sooner.


722/4 2026/08/15 19:28 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

723/4 2026/08/15 19:28 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 111284
							output: 16
							thoughts: 1934
						

Thoughts:
**Analysis of the Reproducer's Behavior and Potential Race Conditions**

I've been digging into why this reproducer isn't triggering the expected warning, and it seems to boil down to the timing of a specific timer and the lifecycle of a parent qdisc.

Initially, I noticed that `perturb_period` is set to `\x7f\x00\x00\x00`, which I quickly realized translates to 127 seconds. This means the timer *will* fire if the reproducer runs for longer than that. My first thought was, "Okay, if the timer fires, it'll look up its parent. If the parent is still around, it'll be found, and no warning." This seems to be exactly what's happening in the current scenario.

The critical question then became: how could the timer fire, find *no* parent, and thus trigger the warning? The only way for this to happen is if the parent was destroyed, but the timer wasn't properly cleaned up. I considered scenarios like reference leaks or a race where the parent is removed from the hash *before* `sfq_destroy` is called.

However, tracing the destruction path, I saw that `__qdisc_destroy` ultimately calls `qdisc_hash_del`, then `prio_destroy`, which calls `qdisc_put`, which calls `qdisc_destroy`, and finally `__qdisc_destroy` again, which *synchronously* calls `sfq_destroy`. And crucially, `sfq_destroy` calls `timer_delete_sync(&q->perturb_timer)`. This entire sequence is synchronous. The only way the timer could fire and observe the parent missing from the hash is if it fired in that infinitesimal window between `qdisc_hash_del(prio)` and `timer_delete_sync(&q->perturb_timer)`. This seems incredibly unlikely.

The reproducer as it stands creates the qdiscs once and then waits. If it just waits 127 seconds, the parent is still in the hash when the timer fires, so no warning. Then the reproducer times out at 150 seconds. This explains why there's no crash.

Now, why would a syzkaller-generated C reproducer *not* capture the exact race loop if it involves complex netlink messages? It's because syzkaller's generation can sometimes miss the exact sequence if it's particularly intricate.

Looking at the `strace` output, I saw the tantalizing lines: `[+] Thread 1 starting race loop...` and `[+] Thread 0 starting race loop...`. This indicates the C reproducer *does* have a race loop. But then Thread 0 sends a massive batch of messages (341136 bytes) and then just loops `getpid()`. Why wouldn't it be sending those messages repeatedly?

My initial hypothesis was that the `sendto` call might have blocked due to a full netlink socket buffer. If it blocked indefinitely, it would never loop. But then I noticed the `sendto` call *resumed*! This meant it didn't block forever.

After the `sendto` resumed, Thread 5887 proceeds to `recvfrom` and then `setsockopt`. Critically, after `setsockopt`, Thread 5887 stops! It doesn't loop back to `sendto`. This suggests that the race loop in the C reproducer might look more like: perform some actions, `sendto`, `recvfrom`, `setsockopt`, and then *exit* or *stop* the thread, rather than continuously looping. This would explain why, even though the output says "starting race loop," the subsequent actions don't show a repeated `sendto`. It might be waiting at a barrier for the other thread before exiting, or simply executing a limited sequence of operations.

Thread 5885, meanwhile, is in a tight loop calling `getpid()`. Syzkaller often uses `getpid()` as a dummy syscall to spin or wait. I'm trying to ascertain if this is part of syzkaller's internal waiting mechanism in its `race` toolkit.


724/4 2026/08/15 19:29 tool get-toolkit
0m Args:
map[Name:race]

Results:
map[Toolkit:// Copyright 2026 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.

// IMPORTANT: Do not copy the macros or definitions below directly into your reproducer.
// Instead, add the following line to your reproducer:
// #include "race_toolkit.h"

// --- Race Condition Toolkit ---
// Macros and snippets for CPU pinning, memory barriers, and userfaultfd.

#define _GNU_SOURCE
#include <errno.h>
#include <fcntl.h>
#include <linux/futex.h>
#include <linux/userfaultfd.h>
#include <poll.h>
#include <pthread.h>
#include <sched.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/syscall.h>
#include <time.h>
#include <unistd.h>

// Unbuffered I/O: Ensure logs are written immediately.
#define SETUP_UNBUFFERED_IO() setvbuf(stdout, NULL, _IONBF, 0)

// CPU Pinning: Pin the current thread to a specific CPU core.
#define PIN_TO_CPU(cpu)                                                \
	do {                                                           \
		cpu_set_t mask;                                        \
		CPU_ZERO(&mask);                                       \
		CPU_SET(cpu, &mask);                                   \
		if (sched_setaffinity(0, sizeof(mask), &mask) == -1) { \
			perror("sched_setaffinity");                   \
		}                                                      \
	} while (0)

// Memory Barrier: Ensure memory ordering.
#define MB() __atomic_thread_fence(__ATOMIC_SEQ_CST)

// Spin-wait Barrier: Wait until a memory location has a specific value.
// Best for tight race windows (low latency, no context switches).
#define WAIT_ON(addr, val)                                               \
	do {                                                             \
		while (__atomic_load_n(addr, __ATOMIC_ACQUIRE) != (val)) \
			;                                                \
	} while (0)

// Signal: Set a memory location to a specific value to release a WAIT_ON.
#define SIGNAL(addr, val) __atomic_store_n(addr, val, __ATOMIC_RELEASE)

// --- Timing Primitives ---
// Robust timing loops in VM environments (using CLOCK_MONOTONIC to avoid time(NULL) jumps).

static inline double timer_elapsed_sec(struct timespec* start)
{
	struct timespec now;
	if (clock_gettime(CLOCK_MONOTONIC, &now) == -1) {
		perror("clock_gettime(CLOCK_MONOTONIC) elapsed");
		exit(1);
	}
	return (double)(now.tv_sec - start->tv_sec) + (double)(now.tv_nsec - start->tv_nsec) / 1e9;
}

// Initialize a monotonic timer variable.
#define TIMER_START(t)                                          \
	struct timespec t;                                      \
	if (clock_gettime(CLOCK_MONOTONIC, &t) == -1) {         \
		perror("clock_gettime(CLOCK_MONOTONIC) start"); \
		exit(1);                                        \
	}

// Check if the elapsed time since 't' is less than 'sec' seconds.
#define TIMER_NOT_EXPIRED(t, sec) (timer_elapsed_sec(&(t)) < (double)(sec))

// Futex-based Event: Shared with syzkaller executor.
// Best for general synchronization or longer waits to save CPU.
typedef struct {
	int state;
} event_t;

static void event_init(event_t* ev)
{
	ev->state = 0;
}
static void event_reset(event_t* ev)
{
	ev->state = 0;
}

static void event_set(event_t* ev)
{
	if (__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE)) {
		fprintf(stderr, "event already set\n");
		exit(1);
	}
	__atomic_store_n(&ev->state, 1, __ATOMIC_RELEASE);
	syscall(SYS_futex, &ev->state, FUTEX_WAKE | FUTEX_PRIVATE_FLAG, 1000000);
}

static void event_wait(event_t* ev)
{
	while (!__atomic_load_n(&ev->state, __ATOMIC_ACQUIRE))
		syscall(SYS_futex, &ev->state, FUTEX_WAIT | FUTEX_PRIVATE_FLAG, 0, 0);
}

// userfaultfd setup: Register a memory range for page fault handling.
static int setup_uffd(void* addr, size_t len)
{
	int uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK);
	if (uffd == -1)
		return -1;
	struct uffdio_api api = {.api = UFFD_API, .features = 0};
	if (ioctl(uffd, UFFDIO_API, &api) == -1) {
		close(uffd);
		return -1;
	}
	struct uffdio_register reg = {
	    .range = {.start = (uintptr_t)addr, .len = len},
	    .mode = UFFDIO_REGISTER_MODE_MISSING};
	if (ioctl(uffd, UFFDIO_REGISTER, &reg) == -1) {
		close(uffd);
		return -1;
	}
	return uffd;
}

// --- Guidance on Usage ---
// 1. Use WAIT_ON/SIGNAL for tight race conditions to avoid scheduling overhead.
// 2. Use event_t (futexes) for general coordination or when waiting for longer periods.
// 3. Always use PIN_TO_CPU to increase race probability on multi-core systems.
// 4. Use setup_uffd to register a memory range for page fault handling. This allows you to
//    pause a thread accessing that memory until you handle the fault, creating a reliable
//    and controllable race window.
// 5. Call SETUP_UNBUFFERED_IO() at the start of main() to ensure that logs are printed
//    immediately. This is essential for understanding the exact interleaving of events
//    when debugging race conditions.
// 6. For timing-based loops (e.g., running a race for 10 seconds), do NOT use time(NULL)
//    or loops relying on real-time clocks, as VM clocks are highly unreliable and can fail or drift.
//    Instead, use the robust monotonic timing primitives TIMER_START and TIMER_NOT_EXPIRED:
//        TIMER_START(start);
//        while (TIMER_NOT_EXPIRED(start, 10.0)) {
//            // Your race logic here
//        }
]

725/4 2026/08/15 19:29 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 114900
							output: 38
							thoughts: 3829
						

Thoughts:
**My Thoughts on Reproducing the Qdisc Race Condition**

I've been digging into this qdisc race condition, and it seems I've finally pieced together why the provided reproducer isn't reliably triggering the bug. My initial thought was that perhaps `getpid()` was involved in some kind of spinning, but that quickly proved to be a red herring. It turns out the `getpid()` calls I was seeing were likely just syzkaller's executor keeping threads alive or dummy syscalls within the generated C code, not the core of the problem. The confusion around threads 5885 and 5887, and the `[+] Done.` message appearing before the timeout, was also a distraction. It seems the C reproducer itself was likely stuck in a loop, and the `Done` message was printed prematurely, leading to the timeout.

The real issue, as I now understand it, lies in the interaction between the destruction of a classful qdisc, specifically a `prio` qdisc, and the timer associated with its child, like an `sfq` qdisc.

Here's the sequence of events leading to the race:

1.  **Parent Qdisc Removal from Hash:** When a parent qdisc is destroyed (e.g., during `__qdisc_destroy`), it's first removed from the kernel's qdisc hash table using `qdisc_hash_del`. This is crucial because it means subsequent lookups for this parent will fail.

2.  **Child Destruction and Timer Cancellation:** After the parent is removed from the hash, its `destroy` operation is called. This operation, in turn, calls `qdisc_put` on its children. For an `sfq` qdisc, `qdisc_put` calls `sfq_destroy`, which attempts to synchronously cancel the child's perturbation timer using `timer_delete_sync(&q->perturb_timer)`.

3.  **The Race Window:** The critical vulnerability exists in the small time window *between* the parent being removed from the hash (`qdisc_hash_del`) and its child's timer being successfully canceled (`timer_delete_sync`).

4.  **Timer Fires:** If the child's timer (in this case, the `sfq_perturbation` timer) fires *during* this specific race window, it will proceed to execute its handler, `sfq_rehash`.

5.  **Lookup Failure:** `sfq_rehash` eventually calls `qdisc_tree_reduce_backlog`. This function attempts to look up the parent qdisc in the hash table using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`. Since the parent was already removed from the hash in step 1, this lookup will return `NULL`.

6.  **Warning Triggered:** The `qdisc_tree_reduce_backlog` function has a `WARN_ON_ONCE(parentid != TC_H_ROOT)` check. Because the parent is not found in the hash and `parentid` is not `TC_H_ROOT` in this scenario, this warning is triggered, indicating the race condition.

The provided C reproducer fails because of two main factors:

*   **`perturb_period` is Too Large:** It's set to 127 seconds. This means the timer would take a very long time to fire.
*   **No Concurrent Destruction and Timer Fire:** The reproducer creates the qdiscs but doesn't seem to destroy them in a way that coincides with the timer firing. In syzkaller's environment, it's likely that the qdiscs were created by one test run and then later, by a different test run or process, destroyed on a persistent interface (like `lo`) about 127 seconds later. This cross-program interaction would have created the necessary timing for the race. The extracted C reproducer, however, only contains one side of this interaction, or it performs the create/destroy operations too quickly.

To reliably reproduce this bug, I need to engineer that precise race window. My plan is to:

1.  **Set `perturb_period` to the minimum:** This means setting `ctl->perturb_period` to 1. The `sfq` perturbation timer fires every `perturb_period` seconds, so a value of 1 second (`1 * HZ`) is the smallest possible non-zero value and will give us a frequent chance to hit the race. The timer is armed for `jiffies + HZ`.

2.  **Implement a Targeted Race Loop:** I need to create a loop that repeatedly:
    *   Creates the `prio` root qdisc and its `sfq` child qdisc with `perturb_period = 1`.
    *   Waits for slightly less than 1 second (e.g., `usleep(990000)`) to ensure the timer is very close to firing.
    *   Immediately destroys the `prio` root qdisc (e.g., by deleting it directly or replacing the root qdisc, which implicitly destroys the old tree).

3.  **Increase Concurrency:** Running this race loop across multiple threads will further increase the probability of the timer firing precisely in that narrow window between the parent's hash removal and the child's timer cancellation.

This approach should reliably expose the race condition by creating the necessary timing overlap for the timer to fire after the parent is removed from the hash but before the child's timer is canceled.


726/4 2026/08/15 19:29 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_enqueue]

Results:
map[SourceCode: 343:	static int
 344:	sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff **to_free)
 345:	{
 346:		struct sfq_sched_data *q = qdisc_priv(sch);
 347:		unsigned int hash, dropped;
 348:		sfq_index x, qlen;
 349:		struct sfq_slot *slot;
 350:		int ret;
 351:		struct sk_buff *head;
 352:		int delta;
 353:	
 354:		hash = sfq_classify(skb, sch, &ret);
 355:		if (hash == 0) {
 356:			if (ret & __NET_XMIT_BYPASS)
 357:				qdisc_qstats_drop(sch);
 358:			__qdisc_drop(skb, to_free);
 359:			return ret;
 360:		}
 361:		hash--;
 362:	
 363:		x = q->ht[hash];
 364:		slot = &q->slots[x];
 365:		if (x == SFQ_EMPTY_SLOT) {
 366:			x = q->dep[0].next; /* get a free slot */
 367:			if (x >= SFQ_MAX_FLOWS)
 368:				return qdisc_drop_reason(skb, sch, to_free, QDISC_DROP_MAXFLOWS);
 369:			WRITE_ONCE(q->ht[hash], x);
 370:			slot = &q->slots[x];
 371:			slot->hash = hash;
 372:			WRITE_ONCE(slot->backlog, 0); /* should already be 0 anyway... */
 373:			red_set_vars(&slot->vars);
 374:			goto enqueue;
 375:		}
 376:		if (q->red_parms) {
 377:			slot->vars.qavg = red_calc_qavg_no_idle_time(q->red_parms,
 378:								&slot->vars,
 379:								slot->backlog);
 380:			switch (red_action(q->red_parms,
 381:					   &slot->vars,
 382:					   slot->vars.qavg)) {
 383:			case RED_DONT_MARK:
 384:				break;
 385:	
 386:			case RED_PROB_MARK:
 387:				qdisc_qstats_overlimit(sch);
 388:				if (sfq_prob_mark(q)) {
 389:					/* We know we have at least one packet in queue */
 390:					if (sfq_headdrop(q) &&
 391:					    INET_ECN_set_ce(slot->skblist_next)) {
 392:						q->stats.prob_mark_head++;
 393:						break;
 394:					}
 395:					if (INET_ECN_set_ce(skb)) {
 396:						q->stats.prob_mark++;
 397:						break;
 398:					}
 399:				}
 400:				q->stats.prob_drop++;
 401:				goto congestion_drop;
 402:	
 403:			case RED_HARD_MARK:
 404:				qdisc_qstats_overlimit(sch);
 405:				if (sfq_hard_mark(q)) {
 406:					/* We know we have at least one packet in queue */
 407:					if (sfq_headdrop(q) &&
 408:					    INET_ECN_set_ce(slot->skblist_next)) {
 409:						q->stats.forced_mark_head++;
 410:						break;
 411:					}
 412:					if (INET_ECN_set_ce(skb)) {
 413:						q->stats.forced_mark++;
 414:						break;
 415:					}
 416:				}
 417:				q->stats.forced_drop++;
 418:				goto congestion_drop;
 419:			}
 420:		}
 421:	
 422:		if (slot->qlen >= q->maxdepth) {
 423:	congestion_drop:
 424:			if (!sfq_headdrop(q))
 425:				return qdisc_drop_reason(skb, sch, to_free, QDISC_DROP_FLOW_LIMIT);
 426:	
 427:			/* We know we have at least one packet in queue */
 428:			head = slot_dequeue_head(slot);
 429:			delta = qdisc_pkt_len(head) - qdisc_pkt_len(skb);
 430:			qstats_backlog_sub(sch, delta);
 431:			WRITE_ONCE(slot->backlog, slot->backlog - delta);
 432:			qdisc_drop_reason(head, sch, to_free, QDISC_DROP_FLOW_LIMIT);
 433:	
 434:			slot_queue_add(slot, skb);
 435:			qdisc_tree_reduce_backlog(sch, 0, delta);
 436:			return NET_XMIT_CN;
 437:		}
 438:	
 439:	enqueue:
 440:		qdisc_qstats_backlog_inc(sch, skb);
 441:		WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 442:		slot_queue_add(slot, skb);
 443:		sfq_inc(q, x);
 444:		if (slot->qlen == 1) {		/* The flow is new */
 445:			if (q->tail == NULL) {	/* It is the first flow */
 446:				slot->next = x;
 447:			} else {
 448:				slot->next = q->tail->next;
 449:				q->tail->next = x;
 450:			}
 451:			/* We put this flow at the end of our flow list.
 452:			 * This might sound unfair for a new flow to wait after old ones,
 453:			 * but we could endup servicing new flows only, and freeze old ones.
 454:			 */
 455:			q->tail = slot;
 456:			/* We could use a bigger initial quantum for new flows */
 457:			WRITE_ONCE(slot->allot, q->quantum);
 458:		}
 459:		qdisc_qlen_inc(sch);
 460:		if (sch->q.qlen <= q->limit)
 461:			return NET_XMIT_SUCCESS;
 462:	
 463:		qlen = slot->qlen;
 464:		dropped = sfq_drop(sch, to_free);
 465:		/* Return Congestion Notification only if we dropped a packet
 466:		 * from this flow.
 467:		 */
 468:		if (qlen != slot->qlen) {
 469:			qdisc_tree_reduce_backlog(sch, 0, dropped - qdisc_pkt_len(skb));
 470:			return NET_XMIT_CN;
 471:		}
 472:	
 473:		/* As we dropped a packet, better let upper stack know this */
 474:		qdisc_tree_reduce_backlog(sch, 1, dropped);
 475:		return NET_XMIT_SUCCESS;
 476:	}
 SourceFile:net/sched/sch_sfq.c]

727/4 2026/08/15 19:29 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 120905
							output: 696
							thoughts: 236
						

Thoughts:
**My Thought Process Regarding the SFQ Timer Bug**

Okay, so I've been digging into this SFQ timer issue, and I think I've got a solid grasp on what's going on. My analysis confirms that `sfq_enqueue` *does* indeed call `qdisc_tree_reduce_backlog`, but that's not the direct culprit here. The stack trace provided in the bug report is the key: it clearly shows the execution path going through `sfq_rehash`, then `sfq_perturbation`, and finally `call_timer_fn`. This definitively points to the timer as the source of the problem.

My diagnosis is now quite clear. The reason the reproducer initially failed is because its timer was set to a rather long 127 seconds. This duration was simply too long to fall within the critical race window, which occurs immediately after the tree is created and before the reproducer attempts to replace the root qdisc.

To properly fix the reproducer and demonstrate the bug reliably, I've figured out the necessary adjustments. The `perturb_period` needs to be reduced to a mere 1 second. Furthermore, the reproducer should be structured to loop through creating and destroying the tree. Crucially, there needs to be a 1-second delay *before* the destruction step. This delay is designed to ensure the timer fires precisely *during* the destruction process, thereby exposing the race condition.

Now, I'm ready to formulate the final feedback. I'll set `TitleMatches` to `true` because the bug described is exactly what I've identified. I'll mark `ProbePassed` as `false` because this isn't a probe scenario; it's a direct bug. `TerminalError` will be left empty as there isn't a specific terminal error to report, beyond the described race condition itself. My explanation will detail this race condition and clearly articulate why the original reproducer failed to trigger it.


728/4 2026/08/15 19:30 tool set-results
0m Args:
map[Feedback:The reproducer failed to trigger the bug because of a timing mismatch in the race condition.

The bug is a race condition between the destruction of a classful qdisc (e.g., `prio`) and the `perturb_timer` of its child qdisc (e.g., `sfq`). 
When a parent qdisc is destroyed, `__qdisc_destroy` removes the parent from the qdisc hash (`qdisc_hash_del`) BEFORE calling its `destroy` operation. The `destroy` operation of the parent then calls `qdisc_put` on its children, which synchronously destroys them and cancels their timers (e.g., `timer_delete_sync(&q->perturb_timer)` in `sfq_destroy`). 
However, there is a small race window between the parent being removed from the hash and the child's timer being canceled. If the child's timer (`sfq_perturbation`) fires during this window, it calls `sfq_rehash` -> `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent in the hash using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`. Since the parent was already removed from the hash, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

The provided C reproducer fails to trigger this because it sets the `sfq` qdisc's `perturb_period` to 127 seconds (`\x7f\x00\x00\x00` in the netlink payload). It then creates the qdiscs and either replaces them immediately or never destroys them. 
- If it replaces them immediately, the tree is destroyed before the 127-second timer can fire, so the timer is safely canceled.
- If it never destroys them, the timer fires after 127 seconds, but the parent is still in the hash, so no warning is hit.

In the original syzkaller run, this was likely triggered by a cross-program interaction where one program created the qdiscs on a persistent interface, and another program destroyed them 127 seconds later exactly when the timer fired.

To reproduce the bug reliably:
1. Modify the netlink payload to set `perturb_period` to 1 second (`\x01\x00\x00\x00`).
2. Implement a race loop that:
   a. Creates the `prio` root qdisc and the `sfq` child qdisc.
   b. Sleeps for slightly less than 1 second (e.g., `usleep(990000)`).
   c. Destroys the `prio` root qdisc (e.g., via `RTM_DELQDISC` or by replacing the root).
3. Run this loop across multiple threads to increase the chance of the timer firing exactly between `qdisc_hash_del` and `timer_delete_sync`. ProbePassed:false TerminalError: TitleMatches:true]

Results:
map[Feedback:The reproducer failed to trigger the bug because of a timing mismatch in the race condition.

The bug is a race condition between the destruction of a classful qdisc (e.g., `prio`) and the `perturb_timer` of its child qdisc (e.g., `sfq`). 
When a parent qdisc is destroyed, `__qdisc_destroy` removes the parent from the qdisc hash (`qdisc_hash_del`) BEFORE calling its `destroy` operation. The `destroy` operation of the parent then calls `qdisc_put` on its children, which synchronously destroys them and cancels their timers (e.g., `timer_delete_sync(&q->perturb_timer)` in `sfq_destroy`). 
However, there is a small race window between the parent being removed from the hash and the child's timer being canceled. If the child's timer (`sfq_perturbation`) fires during this window, it calls `sfq_rehash` -> `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent in the hash using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`. Since the parent was already removed from the hash, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

The provided C reproducer fails to trigger this because it sets the `sfq` qdisc's `perturb_period` to 127 seconds (`\x7f\x00\x00\x00` in the netlink payload). It then creates the qdiscs and either replaces them immediately or never destroys them. 
- If it replaces them immediately, the tree is destroyed before the 127-second timer can fire, so the timer is safely canceled.
- If it never destroys them, the timer fires after 127 seconds, but the parent is still in the hash, so no warning is hit.

In the original syzkaller run, this was likely triggered by a cross-program interaction where one program created the qdiscs on a persistent interface, and another program destroyed them 127 seconds later exactly when the timer fired.

To reproduce the bug reliably:
1. Modify the netlink payload to set `perturb_period` to 1 second (`\x01\x00\x00\x00`).
2. Implement a race loop that:
   a. Creates the `prio` root qdisc and the `sfq` child qdisc.
   b. Sleeps for slightly less than 1 second (e.g., `usleep(990000)`).
   c. Destroys the `prio` root qdisc (e.g., via `RTM_DELQDISC` or by replacing the root).
3. Run this loop across multiple threads to increase the chance of the timer firing exactly between `qdisc_hash_del` and `timer_delete_sync`. ProbePassed:false TerminalError: TitleMatches:true]

729/3 2026/08/15 19:30 action loop-controller
0m Results:
map[CapabilitiesVerified:true ContinueSignal:continue EquivalenceAnalysis: OracleFeedback:The reproducer failed to trigger the bug because of a timing mismatch in the race condition.

The bug is a race condition between the destruction of a classful qdisc (e.g., `prio`) and the `perturb_timer` of its child qdisc (e.g., `sfq`). 
When a parent qdisc is destroyed, `__qdisc_destroy` removes the parent from the qdisc hash (`qdisc_hash_del`) BEFORE calling its `destroy` operation. The `destroy` operation of the parent then calls `qdisc_put` on its children, which synchronously destroys them and cancels their timers (e.g., `timer_delete_sync(&q->perturb_timer)` in `sfq_destroy`). 
However, there is a small race window between the parent being removed from the hash and the child's timer being canceled. If the child's timer (`sfq_perturbation`) fires during this window, it calls `sfq_rehash` -> `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent in the hash using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`. Since the parent was already removed from the hash, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

The provided C reproducer fails to trigger this because it sets the `sfq` qdisc's `perturb_period` to 127 seconds (`\x7f\x00\x00\x00` in the netlink payload). It then creates the qdiscs and either replaces them immediately or never destroys them. 
- If it replaces them immediately, the tree is destroyed before the 127-second timer can fire, so the timer is safely canceled.
- If it never destroys them, the timer fires after 127 seconds, but the parent is still in the hash, so no warning is hit.

In the original syzkaller run, this was likely triggered by a cross-program interaction where one program created the qdiscs on a persistent interface, and another program destroyed them 127 seconds later exactly when the timer fired.

To reproduce the bug reliably:
1. Modify the netlink payload to set `perturb_period` to 1 second (`\x01\x00\x00\x00`).
2. Implement a race loop that:
   a. Creates the `prio` root qdisc and the `sfq` child qdisc.
   b. Sleeps for slightly less than 1 second (e.g., `usleep(990000)`).
   c. Destroys the `prio` root qdisc (e.g., via `RTM_DELQDISC` or by replacing the root).
3. Run this loop across multiple threads to increase the chance of the timer firing exactly between `qdisc_hash_del` and `timer_delete_sync`. ReproC: Reproduced:false ReproducedBugTitle: ReproducedCrashReport:]

730/2 2026/08/15 19:30 iteration 6
18m
731/3 2026/08/15 19:30 action If
9m Args:
map[OracleFeedback:The reproducer failed to trigger the bug because of a timing mismatch in the race condition.

The bug is a race condition between the destruction of a classful qdisc (e.g., `prio`) and the `perturb_timer` of its child qdisc (e.g., `sfq`). 
When a parent qdisc is destroyed, `__qdisc_destroy` removes the parent from the qdisc hash (`qdisc_hash_del`) BEFORE calling its `destroy` operation. The `destroy` operation of the parent then calls `qdisc_put` on its children, which synchronously destroys them and cancels their timers (e.g., `timer_delete_sync(&q->perturb_timer)` in `sfq_destroy`). 
However, there is a small race window between the parent being removed from the hash and the child's timer being canceled. If the child's timer (`sfq_perturbation`) fires during this window, it calls `sfq_rehash` -> `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent in the hash using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`. Since the parent was already removed from the hash, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

The provided C reproducer fails to trigger this because it sets the `sfq` qdisc's `perturb_period` to 127 seconds (`\x7f\x00\x00\x00` in the netlink payload). It then creates the qdiscs and either replaces them immediately or never destroys them. 
- If it replaces them immediately, the tree is destroyed before the 127-second timer can fire, so the timer is safely canceled.
- If it never destroys them, the timer fires after 127 seconds, but the parent is still in the hash, so no warning is hit.

In the original syzkaller run, this was likely triggered by a cross-program interaction where one program created the qdiscs on a persistent interface, and another program destroyed them 127 seconds later exactly when the timer fired.

To reproduce the bug reliably:
1. Modify the netlink payload to set `perturb_period` to 1 second (`\x01\x00\x00\x00`).
2. Implement a race loop that:
   a. Creates the `prio` root qdisc and the `sfq` child qdisc.
   b. Sleeps for slightly less than 1 second (e.g., `usleep(990000)`).
   c. Destroys the `prio` root qdisc (e.g., via `RTM_DELQDISC` or by replacing the root).
3. Run this loop across multiple threads to increase the chance of the timer firing exactly between `qdisc_hash_del` and `timer_delete_sync`.]

732/4 2026/08/15 19:30 agent strategy-refiner
9m Model:
best-expensive

Instruction:
You are an expert in Linux kernel debugging.
Refine the reproduction strategy based on feedback from previous attempts.
Analyze the technical diagnosis provided in the oracle feedback and translate it into concrete,
step-by-step instructions for the repro-generator on how to modify the code structure, alignments,
offsets, or parameters of the candidate program.

=== TOOL SELECTION GUIDELINES ===
- Prefer codesearch-definition-source and codesearch-struct-layout first for symbol lookups.
- Fall back to read-file or grepper for macros, headers, or if symbol lookup fails.

=== CRITICAL PROHIBITIONS ===
- Do NOT repeat searches for the same symbols or files. Use information you have already gathered.
- Do NOT write long explanations. Keep your reasoning short and focused on actionable changes.
- Do NOT assume a bug is fixed based on git commit history.
- If you are stuck, try a different approach or proceed to generate a candidate reproducer.
Prefer calling several tools at the same time to save round-trips.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Current Strategy: An analysis of the feedback reveals that the previous reproducer failed because the `tc` binary in the environment was compiled against older kernel headers. Specifically, the `struct tc_htb_opt` size increased from 40 to 44 bytes in newer kernels (due to the addition of the `prio` field). When `tc` sent a 40-byte payload for `TCA_HTB_PARMS`, the kernel's `validate_nla()` rejected it with `-ERANGE`, preventing the `htb` classes and the subsequent `sfq` qdiscs from being created.

To bypass this struct size mismatch entirely, we can replace `htb` with the `prio` qdisc. The `prio` qdisc is a classful qdisc whose configuration struct (`struct tc_prio_qopt`) is only 20 bytes and has remained unchanged since Linux 2.2. Furthermore, `prio` automatically creates its classes, meaning we don't even need to send class creation commands. 

To ensure the race window is wide enough, we can nest `prio` qdiscs multiple levels deep (e.g., 7 levels), creating a massive tree of over 3,000 qdiscs. When the root `prio` qdisc is destroyed, it recursively unhashes and destroys all children top-down. This takes a significant amount of time. During this long destruction window, the `perturb_timer` of the leaf `sfq` qdiscs will fire, triggering `qdisc_tree_reduce_backlog()`. Because the ancestors are already unhashed, the lookup will fail and trigger the `WARN_ON_ONCE`.

### C Reproducer

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

// Recursively generates a deep tree of prio qdiscs with sfq leaves
void generate_classes(FILE *bf, const char *ifname, int parent_major, int parent_minor, int level, int *handle_counter) {
    if (level == 0) {
        // CRITICAL: depth 1 forces sfq_enqueue to drop packets during rehash if they collide
        fprintf(bf, "qdisc add dev %s parent %x:%x handle %x: sfq perturb 1 limit 127 depth 1\n", 
                ifname, parent_major, parent_minor, (*handle_counter)++);
        return;
    }
    
    int my_handle = (*handle_counter)++;
    fprintf(bf, "qdisc add dev %s parent %x:%x handle %x: prio\n", 
            ifname, parent_major, parent_minor, my_handle);
            
    // prio automatically creates 3 bands (classes 1, 2, and 3)
    for (int i = 1; i <= 3; i++) {
        generate_classes(bf, ifname, my_handle, i, level - 1, handle_counter);
    }
}

// Deletes the root qdisc synchronously using raw netlink
int delete_qdisc(int ifindex) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;

    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {0};

    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    req.n.nlmsg_flags = NLM_F_REQUEST;
    req.n.nlmsg_type = RTM_DELQDISC;
    req.t.tcm_family = AF_UNSPEC;
    req.t.tcm_ifindex = ifindex;
    req.t.tcm_parent = TC_H_ROOT;
    req.t.tcm_handle = 0;

    struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
    int ret = sendto(fd, &req, req.n.nlmsg_len, 0, (struct sockaddr*)&nladdr, sizeof(nladdr));
    close(fd);
    return ret;
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    delete_qdisc(ifindex);
    
    char batch_file[64];
    sprintf(batch_file, "/tmp/tc_batch_%ld.txt", id);
    
    while (1) {
        int handle_counter = 2;
        FILE *bf = fopen(batch_file, "w");
        if (!bf) continue;
        
        // 1. Setup nested PRIO -> SFQ hierarchy to widen the destruction race window
        // This creates 1093 prio qdiscs and 2187 sfq qdiscs.
        fprintf(bf, "qdisc add dev %s root handle 1: prio\n", ifname);
        for (int i = 1; i <= 3; i++) {
            generate_classes(bf, ifname, 1, i, 6, &handle_counter);
        }
        fclose(bf);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        sprintf(cmd, "tc -batch %s >/dev/null 2>&1", batch_file);
        system(cmd);
        
        // 2. Enqueue packets to the SFQ qdiscs
        char pkt[64] = {0};
        struct ethhdr *eth = (struct ethhdr *)pkt;
        struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
        struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

        eth->h_proto = htons(ETH_P_IP);
        ip->version = 4;
        ip->ihl = 5;
        ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
        ip->protocol = IPPROTO_UDP;
        ip->saddr = htonl(0x01020304);
        ip->daddr = htonl(0x05060708);
        udp->len = htons(sizeof(struct udphdr));

        // Send packets with different priorities. The prio qdiscs will route them 
        // down different paths in the tree, ensuring multiple SFQ qdiscs have packets.
        for (int p = 0; p < 16; p++) {
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i); // Vary source port to change hash and avoid initial collisions
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. The timers fire exactly 1 second after they are armed.
        // We sleep for 1 second minus the setup time, plus a random jitter up to 200ms
        // so that delete_qdisc overlaps perfectly with the timers firing.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = rand_r(&seed) % 200000;
            usleep(sleep_us + jitter);
        }
        
        // 4. Delete the root qdisc synchronously (triggers the race while timers are firing)
        delete_qdisc(ifindex);
    }
    return NULL;
}

int main() {
    if (system("tc -V >/dev/null 2>&1") != 0) {
        fprintf(stderr, "tc command not found, skipping test\n");
        return 1;
    }

    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getuid()); fclose(f); }
    f = fopen("/proc/self/setgroups", "w");
    if (f) { fprintf(f, "deny\n"); fclose(f); }
    f = fopen("/proc/self/gid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getgid()); fclose(f); }
    
    system("ip link set lo up");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```
Feedback: The reproducer failed to trigger the bug because of a timing mismatch in the race condition.

The bug is a race condition between the destruction of a classful qdisc (e.g., `prio`) and the `perturb_timer` of its child qdisc (e.g., `sfq`). 
When a parent qdisc is destroyed, `__qdisc_destroy` removes the parent from the qdisc hash (`qdisc_hash_del`) BEFORE calling its `destroy` operation. The `destroy` operation of the parent then calls `qdisc_put` on its children, which synchronously destroys them and cancels their timers (e.g., `timer_delete_sync(&q->perturb_timer)` in `sfq_destroy`). 
However, there is a small race window between the parent being removed from the hash and the child's timer being canceled. If the child's timer (`sfq_perturbation`) fires during this window, it calls `sfq_rehash` -> `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent in the hash using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`. Since the parent was already removed from the hash, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

The provided C reproducer fails to trigger this because it sets the `sfq` qdisc's `perturb_period` to 127 seconds (`\x7f\x00\x00\x00` in the netlink payload). It then creates the qdiscs and either replaces them immediately or never destroys them. 
- If it replaces them immediately, the tree is destroyed before the 127-second timer can fire, so the timer is safely canceled.
- If it never destroys them, the timer fires after 127 seconds, but the parent is still in the hash, so no warning is hit.

In the original syzkaller run, this was likely triggered by a cross-program interaction where one program created the qdiscs on a persistent interface, and another program destroyed them 127 seconds later exactly when the timer fired.

To reproduce the bug reliably:
1. Modify the netlink payload to set `perturb_period` to 1 second (`\x01\x00\x00\x00`).
2. Implement a race loop that:
   a. Creates the `prio` root qdisc and the `sfq` child qdisc.
   b. Sleeps for slightly less than 1 second (e.g., `usleep(990000)`).
   c. Destroys the `prio` root qdisc (e.g., via `RTM_DELQDISC` or by replacing the root).
3. Run this loop across multiple threads to increase the chance of the timer firing exactly between `qdisc_hash_del` and `timer_delete_sync`.

Reply:
An analysis of the feedback reveals that the previous reproducer failed because the `tc` command-line utility parsed the `limit 127` argument incorrectly (or passed it in a way that caused the `perturb_period` to be overwritten to 127 seconds in the netlink payload). Because the timer was set to 127 seconds, but the reproducer only waited for 1 second before destroying the tree, the timer never fired during the destruction window, and the race condition was missed.

To bypass any `tc` parsing bugs or version mismatches entirely, we can construct and send the raw netlink messages (`RTM_NEWQDISC` and `RTM_DELQDISC`) directly in C. This guarantees that `perturb_period` is exactly 1 second and that the qdisc tree is created exactly as intended.

The race condition occurs because `__qdisc_destroy` removes a qdisc from the hash (`qdisc_hash_del`) before recursively destroying its children. If an `sfq` child's `perturb_timer` fires during this window, it calls `qdisc_tree_reduce_backlog`, which walks up the tree. If it encounters an ancestor that has already been unhashed, it triggers the `WARN_ON_ONCE`.

By creating a deep tree of `prio` qdiscs (which take time to destroy recursively) with `sfq` leaves, and timing the destruction of the root qdisc to overlap exactly with the 1-second timer firing, we can reliably trigger the warning.

### C Reproducer

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj,min) (((maj)&TC_H_MAJ_MASK)|((min)&TC_H_MIN_MASK))
#define TC_H_MAJ(h) ((h)&TC_H_MAJ_MASK)
#define TC_H_MIN(h) ((h)&TC_H_MIN_MASK)
#define TC_H_ROOT (0xFFFFFFFFU)

#ifndef TC_PRIO_MAX
#define TC_PRIO_MAX 15
#endif

struct tc_prio_qopt_v {
    int bands;
    uint8_t priomap[TC_PRIO_MAX+1];
};

struct tc_sfq_qopt_v {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

static int addattr_l(struct nlmsghdr *n, size_t maxlen, int type, const void *data, size_t alen) {
    size_t len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return -1;
    rta = (struct rtattr *)((char *)n + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data && alen > 0) memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
    return 0;
}

int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len) {
    char buf[2048];
    struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
    struct tcmsg *tcm;
    memset(buf, 0, sizeof(buf));

    nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    nlh->nlmsg_type = RTM_NEWQDISC;
    nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_REPLACE;
    nlh->nlmsg_seq = 1;

    tcm = (struct tcmsg *)NLMSG_DATA(nlh);
    tcm->tcm_family = AF_UNSPEC;
    tcm->tcm_ifindex = ifindex;
    tcm->tcm_parent = parent;
    tcm->tcm_handle = handle;

    addattr_l(nlh, sizeof(buf), TCA_KIND, kind, strlen(kind) + 1);
    if (opt && opt_len > 0) {
        addattr_l(nlh, sizeof(buf), TCA_OPTIONS, opt, opt_len);
    }

    struct sockaddr_nl sa = { .nl_family = AF_NETLINK };
    return sendto(fd, buf, nlh->nlmsg_len, 0, (struct sockaddr *)&sa, sizeof(sa));
}

int delete_qdisc(int fd, int ifindex) {
    char buf[512];
    struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
    struct tcmsg *tcm;
    memset(buf, 0, sizeof(buf));

    nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    nlh->nlmsg_type = RTM_DELQDISC;
    nlh->nlmsg_flags = NLM_F_REQUEST;
    nlh->nlmsg_seq = 2;

    tcm = (struct tcmsg *)NLMSG_DATA(nlh);
    tcm->tcm_family = AF_UNSPEC;
    tcm->tcm_ifindex = ifindex;
    tcm->tcm_parent = TC_H_ROOT;
    tcm->tcm_handle = 0;

    struct sockaddr_nl sa = { .nl_family = AF_NETLINK };
    return sendto(fd, buf, nlh->nlmsg_len, 0, (struct sockaddr *)&sa, sizeof(sa));
}

void generate_classes(int fd, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) {
        struct tc_sfq_qopt_v sfq_opt = {0};
        sfq_opt.perturb_period = 1; // Exactly 1 second
        uint32_t my_handle = TC_H_MAKE(*handle_counter, 0);
        (*handle_counter)++;
        add_qdisc(fd, ifindex, parent, my_handle, "sfq", &sfq_opt, sizeof(sfq_opt));
        return;
    }
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter, 0);
    (*handle_counter)++;
    struct tc_prio_qopt_v prio_opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    add_qdisc(fd, ifindex, parent, my_handle, "prio", &prio_opt, sizeof(prio_opt));
    
    for (int i = 1; i <= 3; i++) {
        generate_classes(fd, ifindex, TC_H_MAKE(TC_H_MAJ(my_handle), i), level - 1, handle_counter);
    }
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd_nl = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd_nl < 0) return NULL;
    
    // Increase socket buffer size to avoid ENOBUFS during rapid tree creation
    int sndbuf = 1024 * 1024;
    setsockopt(fd_nl, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));

    int fd_pkt = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd_pkt < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));

    while (1) {
        delete_qdisc(fd_nl, ifindex);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        // 1. Create a deep tree of PRIO -> SFQ qdiscs (1093 qdiscs total)
        struct tc_prio_qopt_v prio_opt = {
            .bands = 3,
            .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
        };
        add_qdisc(fd_nl, ifindex, TC_H_ROOT, TC_H_MAKE(1, 0), "prio", &prio_opt, sizeof(prio_opt));
        
        int handle_counter = 2;
        for (int i = 1; i <= 3; i++) {
            generate_classes(fd_nl, ifindex, TC_H_MAKE(1 << 16, i), 5, &handle_counter);
        }
        
        // 2. Enqueue packets to ensure sfq_rehash is called when the timer fires
        for (int p = 0; p < 16; p++) {
            setsockopt(fd_pkt, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 20; i++) {
                udp->source = htons(i);
                sendto(fd_pkt, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. Sleep until exactly 1 second has passed since the timers were armed.
        // We add a random jitter (-50ms to +50ms) to ensure we hit the exact microsecond 
        // where the timer fires concurrently with the tree destruction.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = (rand_r(&seed) % 100000) - 50000;
            if (sleep_us + jitter > 0)
                usleep(sleep_us + jitter);
        }
    }
    return NULL;
}

int main() {
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getuid()); fclose(f); }
    f = fopen("/proc/self/setgroups", "w");
    if (f) { fprintf(f, "deny\n"); fclose(f); }
    f = fopen("/proc/self/gid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getgid()); fclose(f); }
    
    system("ip link set lo up");

    pthread_t th[4];
    for (long i = 0; i < 4; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 4; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```

733/5 2026/08/15 19:30 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 6948
							output: 42
							thoughts: 948
						

Thoughts:
**Refining the Linux Kernel Bug Reproducer: A Deep Dive into the Race Condition**

My objective here is to create a robust C reproducer for a specific Linux kernel bug, identified by `WARNING in qdisc_tree_reduce_backlog`. My previous attempt unfortunately faltered, primarily due to a timing mismatch that prevented the race condition from manifesting reliably. The feedback I received has been instrumental in dissecting this race condition, and I'm now piecing together the precise sequence of events that leads to the bug.

The core of the issue lies in the interaction between `__qdisc_destroy` and the child qdisc's timer. When a parent qdisc is being destroyed, `__qdisc_destroy` first removes the parent from the qdisc hash table via `qdisc_hash_del`. Following this, it proceeds to call the parent's `destroy` operation. This `destroy` operation, in turn, handles the destruction of its child qdiscs and crucially, cancels their associated timers using `timer_delete_sync`.

The race occurs if a child qdisc's timer – specifically, something like `sfq_perturbation` in the case of the SFQ qdisc – fires *after* the parent has been removed from the hash table by `qdisc_hash_del` but *before* `timer_delete_sync` has successfully canceled it. When this timer fires, it invokes `qdisc_tree_reduce_backlog`. This function, attempting to locate the child's parent in the hash table, finds nothing because it's already been deleted. Consequently, it returns `NULL`, triggering the `WARN_ON_ONCE` that signals the bug.

I recall my previous C reproducer utilized the `tc -batch` command to set up these qdiscs. The feedback I received mentioned modifying the netlink payload to set `perturb_period` to 1 second. Initially, I thought my `tc` command, `qdisc add dev %s parent %x:%x handle %x: sfq perturb 1 limit 127 depth 1`, already achieved this with `perturb 1`. However, the feedback also points to a potential confusion, stating that "the provided C reproducer fails to trigger this because it sets the `sfq` qdisc's `perturb_period` to 127 seconds (`\x7f\x00\x00\x00` in the netlink payload)." This is quite perplexing, as `perturb 1` in the `tc` command should, by all accounts, set the period to 1 second, not 127.

This discrepancy leads me to suspect that the feedback I'm referencing might be related to an even earlier iteration of the reproducer, perhaps one that used raw netlink calls directly, or that the `tc` command was misinterpreted in the feedback's analysis. The current strategy I'm considering is to move away from `tc` and replace the `htb` qdisc with a `prio` qdisc, as suggested to bypass potential struct size mismatches stemming from older kernel headers against which the `tc` binary might have been compiled.

However, I need to re-emphasize the core race: the window between `qdisc_hash_del(parent)` and `timer_delete_sync(&child->perturb_timer)`. To reliably trigger this, my focus must be on widening this window. A key insight is that the parent's `destroy` operation can be made to take longer. In the context of a `prio` qdisc as the parent, its `destroy` operation recursively destroys its children. If I construct a sufficiently deep tree, where the `prio` qdisc has child `prio` qdiscs, the destruction process for the root `prio` qdisc will involve recursively destroying all its descendants. This recursive destruction, especially with a deep tree (like the previous attempt with depth 6, involving 1093 prio and 2187 sfq qdiscs), will naturally extend the time taken by `root->ops->destroy(root)`.

Crucially, I need to ensure that `qdisc_tree_reduce_backlog` is looking for the *immediate* parent in the hash. I will need to carefully re-examine the source code of `qdisc_tree_reduce_backlog` to confirm this exact behavior, as it's paramount to my strategy of exploiting the hash deletion before the timer synchronization.


734/5 2026/08/15 19:30 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

735/5 2026/08/15 19:30 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 8540
							output: 38
							thoughts: 121
						

Thoughts:
**My Thought Process Regarding `qdisc_tree_reduce_backlog` and Potential Race Conditions**

It seems I've stumbled upon a critical point of potential contention when dealing with the `qdisc_tree_reduce_backlog` function. My initial observation is that this function relies on looking up the parent qdisc using `TC_H_MAJ(parentid)`. The immediate concern arises when this parent qdisc might be in the process of being destroyed or has already been unhashed.

I'm specifically focusing on the scenario where `qdisc_lookup_rcu` might return `NULL` for the parent. This would happen if the parent qdisc has been unhashed. Now, this is where the `WARN_ON_ONCE(parentid != TC_H_ROOT)` warning becomes particularly illuminating, and frankly, a bit alarming. It tells me that this warning will be triggered if the *immediate* parent of the qdisc being processed by `qdisc_tree_reduce_backlog` is unhashed, unless that parent is the root qdisc itself.

This immediately leads me to question the execution order of operations. I recall that `__qdisc_destroy` is responsible for unhashing a qdisc *before* it proceeds to call the `destroy` function. This sequence implies a potential race condition. If `qdisc_tree_reduce_backlog` is attempting to access a parent that has *just been unhashed* by `__qdisc_destroy` (and is not the root), the `qdisc_lookup_rcu` will indeed return `NULL`, and that `WARN_ON_ONCE` will fire.

My next logical step is to dive deeper into the implementation of `__qdisc_destroy` to fully understand the precise timing and mechanisms involved in its unhashing and destruction process. I need to confirm how this interacts with the lookup performed by `qdisc_tree_reduce_backlog` to ensure I fully grasp the implications of this potential race window and whether any protective measures are already in place or need to be considered.


736/5 2026/08/15 19:30 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

737/5 2026/08/15 19:30 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 9081
							output: 38
							thoughts: 52
						

Thoughts:
**My Thought Process Regarding Queueing Discipline Destruction**

Right, I've been digging into the queueing discipline (qdisc) destruction process, and I've confirmed something crucial: the `qdisc_hash_del(qdisc)` function is indeed invoked *before* the specific `ops->destroy(qdisc)` operation is executed. This order of operations is essential to understand the lifecycle of these network structures.

Furthermore, I've identified that if the qdisc in question is of the `prio` type, its associated `destroy` operation is specifically handled by the `prio_destroy` function. This specialization means that while the general framework dictates the deletion from the hash table first, the `prio` discipline has its own unique cleanup logic that gets called thereafter. This pattern suggests a modular design where core resource management (like hash table removal) is decoupled from the discipline-specific deallocation or cleanup procedures. My understanding is that this separation allows for cleaner code and easier extension with new qdisc types, each providing its own `destroy` method.


738/5 2026/08/15 19:30 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_prio.c Name:prio_destroy]

Results:
map[SourceCode: 164:	static void
 165:	prio_destroy(struct Qdisc *sch)
 166:	{
 167:		int prio;
 168:		struct prio_sched_data *q = qdisc_priv(sch);
 169:	
 170:		tcf_block_put(q->block);
 171:		prio_offload(sch, NULL);
 172:		for (prio = 0; prio < q->bands; prio++)
 173:			qdisc_put(q->queues[prio]);
 174:	}
 SourceFile:net/sched/sch_prio.c]

739/5 2026/08/15 19:30 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 9349
							output: 38
							thoughts: 114
						

Thoughts:
**My Internal Monologue on qdisc_put and its Ripple Effects**

Okay, so I'm tracing the lifecycle of a queueing discipline (qdisc) here, specifically focusing on `qdisc_put`. My initial thought is straightforward: `qdisc_put` is designed to decrement a reference count. If that count hits zero, it signals that the qdisc is no longer needed, and we should proceed to destroy it using `__qdisc_destroy`.

But then, a nuance strikes me. When `qdisc_put` is called on a parent qdisc, it doesn't just destroy that parent in isolation. It also has implications for its children. If the parent's refcount drops to zero and `__qdisc_destroy` is invoked, that destruction process *also* applies to any child qdiscs that might be attached. This is a crucial cascading effect I need to keep in mind.

Following this chain of thought, I realize that `__qdisc_destroy` on a child isn't just a simple memory free. It performs two key actions: first, it calls `qdisc_hash_del(child)` to remove the child from the relevant hash table, effectively unregistering it. Second, and this is where the specific qdisc implementation matters, it calls `child->ops->destroy(child)`. This is the point where the actual destruction logic for that particular qdisc type is executed.

Now, my expertise immediately kicks in. I know that different qdisc implementations have their own cleanup routines. My mind jumps to a specific case: what if the child qdisc is an `sfq` (Stochastic Fairness Queuing)? In that scenario, the `sfq_destroy` function will be invoked. And within `sfq_destroy`, I recall that it performs a critical cleanup operation: `timer_delete_sync(&q->perturb_timer)`. This tells me that when an `sfq` qdisc is destroyed, its associated perturbation timer needs to be synchronously deleted to prevent any lingering timer events from causing issues. This synchronization is important for predictable behavior.


740/5 2026/08/15 19:30 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_destroy]

Results:
map[SourceCode: 765:	static void sfq_destroy(struct Qdisc *sch)
 766:	{
 767:		struct sfq_sched_data *q = qdisc_priv(sch);
 768:	
 769:		tcf_block_put(q->block);
 770:		WRITE_ONCE(q->perturb_period, 0);
 771:		timer_delete_sync(&q->perturb_timer);
 772:		sfq_free(q->ht);
 773:		sfq_free(q->slots);
 774:		kfree(q->red_parms);
 775:	}
 SourceFile:net/sched/sch_sfq.c]

741/5 2026/08/15 19:30 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 9688
							output: 39
							thoughts: 2024
						

Thoughts:
**My Thought Process Unpacking the `prio` -> `sfq` Race Condition**

I've been diving deep into the lifecycle of `prio` and `sfq` qdiscs, specifically trying to understand a race condition. My goal is to reconstruct the sequence of events and pinpoint the exact window where things go wrong, and how to reliably trigger it.

Here's how I see the destruction sequence for a `prio` qdisc that has an `sfq` qdisc as one of its children:

1.  `__qdisc_destroy(prio)`: This is the initial cleanup for the `prio` qdisc itself.
2.  `qdisc_hash_del(prio)`: The `prio` qdisc is removed from the kernel's qdisc hash table. This is crucial – it means the `prio` qdisc is no longer directly findable by its handle.
3.  `prio_destroy(prio)`: This function handles the destruction of the `prio` qdisc's internal structures, including its bands.
4.  `qdisc_put(sfq)`: The `sfq` qdisc, which is a child of this `prio` qdisc (in one of its bands), is released.
5.  `__qdisc_destroy(sfq)`: The `sfq` qdisc itself starts its destruction process.
6.  `qdisc_hash_del(sfq)`: The `sfq` qdisc is removed from the hash table.
7.  `sfq_destroy(sfq)`: The specific cleanup for the `sfq` qdisc.
8.  `timer_delete_sync(&sfq->perturb_timer)`: This is the final step for `sfq`'s timer.

Now, the core of the race lies in what happens if the `sfq->perturb_timer` fires *between* step 2 (`qdisc_hash_del(prio)`) and step 8 (`timer_delete_sync(&sfq->perturb_timer)`).

When the `sfq->perturb_timer` fires, it triggers `sfq_perturbation`, which in turn calls `sfq_rehash`. The critical part is `sfq_rehash` calling `qdisc_tree_reduce_backlog(sfq)`.

`qdisc_tree_reduce_backlog(sfq)`'s job is to walk *up* the qdisc tree from `sfq` to its ancestors and perform some cleanup or state reduction. It does this by repeatedly looking up the `sfq->parent`. The logic is something like: `while ((parentid = sch->parent)) { sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid)); }`.

Here's where the race bites:

*   At step 2, `prio` (which is `sfq`'s parent, or an ancestor of `sfq`'s immediate parent) has been removed from the hash table.
*   If `qdisc_tree_reduce_backlog` is called during this window, it will try to look up `sfq->parent`.
*   If `sfq->parent` points to the `prio` qdisc that was just unhashed (or an ancestor that was unhashed earlier in the `prio` destruction chain), the lookup `qdisc_lookup_rcu` will fail.
*   And precisely when that lookup fails, the `WARN_ON_ONCE` condition is met, triggering the warning I'm seeing.

So, the window of vulnerability is indeed between the `prio` qdisc (or its relevant ancestor) being removed from the hash table and the `sfq` qdisc's timer being fully cleaned up.

To *maximize* this window, I need to make the destruction of the `prio` qdisc take as long as possible *before* it gets to destroying the `sfq` child. This is achieved by exploiting the structure of `prio`:

*   If `prio` has multiple bands, `prio_destroy` processes them sequentially.
*   If I can place a very large, complex tree of `prio` qdiscs in an *earlier* band (say, band 0), and the `sfq` qdisc in a *later* band (say, band 1), then `prio_destroy` will spend a significant amount of time recursively destroying the massive tree in band 0 *before* it even gets to processing band 1 and calling `qdisc_put(sfq)`.

This prolonged destruction of band 0 directly extends the time during which the `prio` qdisc (or its ancestor `root_prio` if it's nested) is unhashed, while the `sfq` qdisc in band 1 is still active and its timer can fire.

Let's refine this: `qdisc_tree_reduce_backlog` walks up the tree. If `root_prio` is the qdisc being deleted (and it's unhashed), and `sfq` is a child of `root_prio` (e.g., in band 1), then `sfq->parent` will point to `root_prio`. When `qdisc_tree_reduce_backlog` tries to look up `root_prio` (because `root_prio` is part of the `sfq->parent` chain), the lookup will fail since `root_prio` was already unhashed in step 2.

Therefore, the ideal setup for reproduction is:

1.  A `prio` qdisc as the root.
2.  Band 0 of this `prio` qdisc contains a very deep and wide tree of other `prio` qdiscs (to make its destruction slow).
3.  Band 1 of this `prio` qdisc contains the target `sfq` qdisc, configured with a short `perturb_period`.
4.  Band 2 (and others) can be empty or have default qdiscs.

Now, regarding the feedback about the `perturb_period` value and the Netlink payload:

The previous C reproducer seemed to be setting the `perturb_period` to 127 seconds (indicated by `\x7f\x00\x00\x00`). The feedback explicitly states it should be 1 second (`\x01\x00\x00\x00`). This is crucial because a shorter `perturb_period` means the `sfq` timer is more likely to fire *during* the prolonged destruction of the `prio`'s complex band 0. A longer period gives the `prio` destruction more time to complete before the `sfq` timer can even activate the race condition.

The instruction to "sleep for slightly less than 1 second (e.g., `usleep(990000)`)" before destroying the `prio` root qdisc is also key. This ensures that by the time the `prio` destruction begins, the `sfq` qdisc is already set up with its timer active and ready to potentially fire. The race then occurs *during* the destruction of the `prio` qdisc, specifically when its parent is being unhashed before the `sfq` cleanup is complete.

It seems the race is indeed triggered by `qdisc_tree_reduce_backlog` attempting to resolve an ancestor that has already been removed from the hash. The challenge is creating the specific timing and tree structure to reliably hit this window. I'm focusing on making the `prio` destruction slow and the `sfq` timer short.


742/5 2026/08/15 19:30 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

743/5 2026/08/15 19:30 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 12950
							output: 39
							thoughts: 170
						

Thoughts:
**My Thought Process Regarding `sfq_rehash` and `qdisc_tree_reduce_backlog`**

Okay, so I've just been examining the behavior of `sfq_rehash`. What's striking me immediately is that `qdisc_tree_reduce_backlog` is being invoked unconditionally at the conclusion of `sfq_rehash`. My initial thought, or perhaps a slight concern, is that this might be happening even when the `dropped` and `drop_len` values are zero.

Let me double-check that. If `dropped` is indeed zero, the call to `qdisc_tree_reduce_backlog` still proceeds. That's an interesting observation, and I need to understand the implications.

I'm going to look at the implementation of `qdisc_tree_reduce_backlog` more closely to confirm this behavior. Ah, I see it now. The line `drops = max_t(int, n, 0);` and then the `while ((parentid = sch->parent)) { ... }` loop are key. Yes, confirmed: it *is* called, and it will traverse the entire `qdisc` tree regardless of whether `dropped` is zero.

This actually simplifies things quite a bit. If the function is designed to handle zero drops gracefully by simply iterating the tree without any effective backlog reduction in that scenario, then the premise of *forcing* drops to trigger this behavior is unnecessary. The call itself is sufficient to initiate the tree walk.

Now, I need to consider the context. Where is `sfq_rehash` actually being called from? My understanding is that `sfq_rehash` is invoked within `sfq_perturbation`. This is an important piece of the puzzle in understanding the overall flow and the rationale behind these calls.


744/5 2026/08/15 19:30 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_perturbation]

Results:
map[SourceCode: 604:	static void sfq_perturbation(struct timer_list *t)
 605:	{
 606:		struct sfq_sched_data *q = timer_container_of(q, t, perturb_timer);
 607:		struct Qdisc *sch = q->sch;
 608:		spinlock_t *root_lock;
 609:		siphash_key_t nkey;
 610:		int period;
 611:	
 612:		get_random_bytes(&nkey, sizeof(nkey));
 613:		rcu_read_lock();
 614:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 615:		spin_lock(root_lock);
 616:		q->perturbation = nkey;
 617:		if (!q->filter_list && q->tail)
 618:			sfq_rehash(sch);
 619:		spin_unlock(root_lock);
 620:	
 621:		/* q->perturb_period can change under us from
 622:		 * sfq_change() and sfq_destroy().
 623:		 */
 624:		period = READ_ONCE(q->perturb_period);
 625:		if (period)
 626:			mod_timer(&q->perturb_timer, jiffies + period);
 627:		rcu_read_unlock();
 628:	}
 SourceFile:net/sched/sch_sfq.c]

745/5 2026/08/15 19:30 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 13565
							output: 42
							thoughts: 1689
						

Thoughts:
**My Thought Process Unpacking the `sfq` Race Condition**

So, I've been digging into this `sfq_rehash` behavior, and it's only triggered when `q->tail` isn't NULL. This, in turn, means packets must be present in the queue. My previous reproducer *did* enqueue packets, so that's good. However, I was initially overthinking the `sfq` parameters. I thought I *needed* `sfq perturb 1, limit 127, depth 1` specifically to force drops, but that's not the goal here. I just need packets in the queue to prevent `q->tail` from being NULL. So, a simple `sfq perturb 1` is perfectly sufficient.

Now, let's revisit the race loop from the previous reproducer:

```c
        // 1. Setup nested PRIO -> SFQ hierarchy to widen the destruction race window
        // This creates 1093 prio qdiscs and 2187 sfq qdiscs.
        fprintf(bf, "qdisc add dev %s root handle 1: prio\n", ifname);
        for (int i = 1; i <= 3; i++) {
            generate_classes(bf, ifname, 1, i, 6, &handle_counter);
        }
        fclose(bf);
```

I'm looking at the `generate_classes` function and realizing how it builds the tree. When `level == 0`, it creates `sfq` qdiscs. When `level > 0`, it creates `prio` qdiscs. This creates a tree of depth 6. The root is `1:`. It has 3 bands. The `prio` qdisc classes are indeed `1:1`, `1:2`, `1:3`. The `handle_counter` starts at 2, so the first child `prio` qdisc correctly gets handle `2:`. This part is fine.

Then, the reproducer enqueues packets:

```c
        // 2. Enqueue packets to the SFQ qdiscs
        // ...
        for (int p = 0; p < 16; p++) {
            setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i); // Vary source port to change hash and avoid initial collisions
                sendto(fd, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
```

This part sends packets with different priorities. The `prio` qdisc uses `skb->priority` to map to bands. By default, priorities 0-15 map to bands 0, 1, and 2. So, packets are distributed across the 3 bands of the root `prio` qdisc. Then, the child `prio` qdiscs also use `skb->priority` for band mapping.

Here's a critical observation: If `skb->priority` is the same for a packet as it travels down the tree, it will always end up in the same band at each level! For instance, if `skb->priority` is 0, it maps to band 1. The root `prio` sends it to band 1 (class `1:2`). The child `prio` at `1:2` also maps priority 0 to band 1 (class `2:2`). This means all packets with the same priority will follow a *single path* down the tree to a *single `sfq` leaf*. Since there are only 16 priorities, packets will only reach at most 16 `sfq` leaves out of the total 2187.

Is this a problem? Well, if the `sfq` leaves that *do* receive packets are destroyed very early or very late relative to the race window, we might miss the window. To maximize our chances, we want the `sfq` leaves that receive packets to be destroyed *during* the race window.

Now, `prio_destroy` destroys bands in order: 0, 1, 2. This means the `sfq` leaves in band 2 of the root `prio` qdisc will be destroyed last, while those in band 0 will be destroyed first. If we want a long race window, we'd ideally want an `sfq` leaf destroyed *last*, so the time between `qdisc_hash_del(root)` and `timer_delete_sync(sfq)` is maximized.

However, `qdisc_tree_reduce_backlog` checks the *immediate parent*. If the immediate parent is unhashed, it triggers the warning. When is the immediate parent unhashed? Right before the `sfq` itself is destroyed!

Let's follow the chain: `__qdisc_destroy(immediate_parent)` calls `qdisc_hash_del(immediate_parent)`. Then, `prio_destroy(immediate_parent)` calls `qdisc_put` on its children (the `sfq` qdiscs). This means the window between `qdisc_hash_del(immediate_parent)` and `timer_delete_sync(sfq)` is extremely short. It's essentially just the time it takes to destroy the *other* bands of the `immediate_parent` that come *before* the `sfq` leaf.

In our specific tree structure, the `immediate_parent` of an `sfq` qdisc is a `prio` qdisc at `level 1`. Its children are *all* `sfq` qdiscs (since they are at `level 0`). Destroying an `sfq` qdisc is very fast. Therefore, the window between `qdisc_hash_del(immediate_parent)` and `timer_delete_sync(sfq)` is *always* tiny, regardless of which band the `sfq` falls into.

This is a crucial realization! `qdisc_tree_reduce_backlog` traverses *up* the tree, checking each ancestor. If *any* ancestor is unhashed, the warning fires.

My next step is to re-examine `qdisc_tree_reduce_backlog` to fully grasp this ancestor checking mechanism.


746/5 2026/08/15 19:31 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

747/5 2026/08/15 19:31 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15898
							output: 46
							thoughts: 667
						

Thoughts:
**The Expanding Window of Vulnerability: Unhashing Ancestors and SFQ Destruction**

My initial excitement, "Yes!", stemmed from realizing the critical flaw I'd uncovered. I was tracing the `qdisc_lookup_rcu` function, specifically this loop:

```c
while ((parentid = sch->parent))
    sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
```

What struck me was how this loop inherently *updates `sch` to the parent* in each iteration. This means that in the *next* iteration, it's not just looking for the grandparent, but it's *already* positioned at the grandparent's level.

Now, the critical insight: imagine a scenario where the `immediate_parent` is *still hashed* in the RCU lookup, but its ancestor, the `grandparent`, has been *unhashed*. My logic dictated that the loop would first successfully find and update `sch` to `immediate_parent`. Then, in the subsequent iteration, it would retrieve `immediate_parent->parent`, which is precisely the `grandparent`. When it attempts to look up this `grandparent` using `qdisc_lookup_rcu`, it would fail because it's now unhashed. This failure, I realized, is what would trigger the warning.

This fundamentally shifted my understanding. The vulnerable window wasn't just the brief moment between the `immediate_parent` being unhashed and the `sfq` qdisc being destroyed, as I'd initially suspected. Instead, I saw that the window is far broader: it spans from the unhashing of *any ancestor* up to the `sfq` qdisc's destruction. If the `root` qdisc itself were unhashed, the window would extend for the entire duration it takes to destroy the *entire qdisc tree* until it finally reached the `sfq`. This realization, "This is huge!", confirmed that my previous analysis about the large window of vulnerability was, in fact, correct.

However, this led to a perplexing question: why did my previous reproducer fail to trigger this? The feedback provided offered a clue: "The provided C reproducer fails to trigger this because it sets the `sfq` qdisc's `perturb_period` to 127 seconds (`\x7f\x00\x00\x00` in the netlink payload). It then creates the qdiscs and either replaces them immediately or never destroys them."

Ah, that explains it. If the `perturb_period` is set to 127 seconds, the timer associated with the `sfq` qdisc won't fire until 127 seconds have passed. My C reproducer, on the other hand, only sleeps for 1 second (`long sleep_us = 1000000 - elapsed_us;`). This means the timer hadn't even had a chance to activate before the `root` qdisc was destroyed.

This then raised another question: why would `tc` set the `perturb_period` to 127 seconds in the first place? I examined the `tc` command used: `sfq perturb 1 limit 127 depth 1`. I briefly considered if `tc` might be misinterpreting `limit 127` as `perturb 127`. I mentally checked the `tc` source code or considered running it with just `sfq perturb 1`. I reasoned that if I simply used `sfq perturb 1`, the `perturb_period` would definitively be set to 1. I then explored the possibility of a bug in `tc` where `limit` might overwrite `perturb`, but quickly dismissed that idea as they are distinct options.

The feedback, however, continued to emphasize: "sets the `sfq` qdisc's `perturb_period` to 127 seconds (`\x7f\x00\x00\x00` in the netlink payload)." This strongly suggested that the `127` was indeed being directly passed as `perturb_period` in the netlink message, not as a consequence of `limit`. This led me to investigate the `struct tc_sfq_qopt_v1` structure, searching for how `perturb_period` was populated and potentially overridden or misinterpreted within the `tc` command parsing.


748/5 2026/08/15 19:31 tool codesearch-definition-source
0m Args:
map[ContextFile:include/uapi/linux/pkt_sched.h Name:tc_sfq_qopt_v1]

Results:
map[SourceCode: 230:	struct tc_sfq_qopt_v1 {
 231:		struct tc_sfq_qopt v0;
 232:		unsigned int	depth;		/* max number of packets per flow */
 233:		unsigned int	headdrop;
 234:	/* SFQRED parameters */
 235:		__u32		limit;		/* HARD maximal flow queue length (bytes) */
 236:		__u32		qth_min;	/* Min average length threshold (bytes) */
 237:		__u32		qth_max;	/* Max average length threshold (bytes) */
 238:		unsigned char   Wlog;		/* log(W)		*/
 239:		unsigned char   Plog;		/* log(P_max/(qth_max-qth_min))	*/
 240:		unsigned char   Scell_log;	/* cell size for idle damping */
 241:		unsigned char	flags;
 242:		__u32		max_P;		/* probability, high resolution */
 243:	/* SFQRED stats */
 244:		struct tc_sfqred_stats stats;
 245:	};
 SourceFile:include/uapi/linux/pkt_sched.h]

749/5 2026/08/15 19:31 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 16940
							output: 43
							thoughts: 14
						

Thoughts:
**My Thought Process**

Right, so my immediate instinct when dealing with this particular data structure, `struct tc_sfq_qopt`, is to delve into its specifics. I need to understand exactly what information it holds and how it's organized, because that's the foundation for everything else. It's like checking the blueprints before you start building – you wouldn't proceed without knowing the dimensions and materials. So, my focus is on dissecting this `struct` to grasp its members, their types, and their intended purpose within the `tc_sfq_qopt` context. This is a crucial step in any kind of system-level work, especially when dealing with network traffic control mechanisms like SFQ. I'm essentially trying to build a mental model of its internal workings.


750/5 2026/08/15 19:31 tool codesearch-definition-source
0m Args:
map[ContextFile:include/uapi/linux/pkt_sched.h Name:tc_sfq_qopt]

Results:
map[SourceCode: 213:	struct tc_sfq_qopt {
 214:		unsigned	quantum;	/* Bytes per round allocated to flow */
 215:		int		perturb_period;	/* Period of hash perturbation */
 216:		__u32		limit;		/* Maximal packets in queue */
 217:		unsigned	divisor;	/* Hash divisor  */
 218:		unsigned	flows;		/* Maximal number of flows  */
 219:	};
 SourceFile:include/uapi/linux/pkt_sched.h]

751/5 2026/08/15 19:31 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 17133
							output: 95
							thoughts: 609
						

Thoughts:
**My Thought Process Regarding the `sfq` Qdisc and Netlink Communication**

I've been digging into how the `tc` utility interacts with the `sfq` (Stochastic Fairness Queueing) qdisc, and a specific detail caught my eye: the `limit` field appears immediately after `perturb_period` in the `struct tc_sfq_qopt`. This proximity sparked a concern. If the `tc` binary being used is compiled against older headers, or if there's any kind of version mismatch, could it inadvertently write the value intended for `limit` into `perturb_period`? My initial thought was that `tc` itself handles the parsing of arguments, so it *should* be filling the struct correctly.

To verify this, I decided to trace the `tc` command's argument parsing for `sfq`. Specifically, I considered a command like `sfq perturb 1 limit 127 depth 1`. This led me to wonder if the `tc` environment I was working within (perhaps from a syzkaller context) might be outdated or even buggy.

Given this potential for parsing issues, my primary directive became: to ensure absolute safety and sidestep any possible `tc` parsing bugs, I should construct the netlink messages directly in C. This bypasses `tc` entirely and gives me direct control over the data being sent.

The feedback I received reinforced this approach, explicitly stating: "Modify the netlink payload to set `perturb_period` to 1 second (`\x01\x00\x00\x00`)." It also outlined a race condition loop that would:
a. Create the `prio` root qdisc and the `sfq` child qdisc.
b. Sleep for just under a second (e.g., `usleep(990000)`).
c. Destroy the `prio` root qdisc (either via `RTM_DELQDISC` or by replacing the root).

By using raw netlink, I'm free from any concerns about `tc`'s parsing logic. I can directly create both the `prio` root and the `sfq` child qdiscs.

However, I then considered a potential problem with my initial race loop idea. If I only create *one* `prio` root and *one* `sfq` child, the window for the race condition (where the `sfq` might be prematurely destroyed) would be extremely small. The `prio` qdisc has three bands. If I place `sfq` in band 0, it would be destroyed almost immediately. If I place `sfq` in band 2 and leave bands 0 and 1 empty, destroying the empty bands would be very fast.

To widen this window, I realized I would need to populate bands 0 and 1 with a significant number of other qdiscs. But attempting to do this with raw netlink would mean sending thousands of individual netlink messages, which is inefficient.

A potential optimization came to mind: could I send these qdisc creations in a batch? Yes, by constructing a single, large netlink message containing multiple `nlmsghdr` structures. Alternatively, I could consider using `tc -batch` for creating the entire qdisc tree, but then fall back to raw netlink specifically for managing the `sfq` leaves, where the critical timing and parsing concerns lie.

Reflecting further, if the *sole* issue is `tc`'s parsing of `sfq`, what if I simplify the scenario? What if I try to use `sfq perturb 1` *without* specifying `limit 127 depth 1`? I need to check if `tc` handles the parsing of `sfq perturb 1` correctly on its own.

Ultimately, if I'm writing a simple raw netlink program to construct the qdisc tree, it's not an insurmountable task. I'll likely need to write a reusable function to add a qdisc via netlink.


752/5 2026/08/15 19:31 tool codeexpert
2m Args:
map[Question:Write a C function `int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len)` that sends an RTM_NEWQDISC netlink message to add a qdisc. The function should construct the netlink message with the given parameters and send it.]

Results:
map[Answer:To send an `RTM_NEWQDISC` netlink message to add a qdisc, the message must consist of a netlink header (`struct nlmsghdr`) followed by a traffic control message header (`struct tcmsg`), and optional netlink attributes for the qdisc kind (`TCA_KIND`) and qdisc configuration options (`TCA_OPTIONS`).

Here is the implementation of the `add_qdisc` function in C:

```c
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <string.h>
#include <stdint.h>

static int addattr_l(struct nlmsghdr *n, size_t maxlen, int type, const void *data, size_t alen)
{
    size_t len = RTA_LENGTH(alen);
    struct rtattr *rta;

    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen)
        return -1;

    rta = (struct rtattr *)((char *)n + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data && alen > 0)
        memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
    return 0;
}

int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len)
{
    char buf[4096];
    struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
    struct tcmsg *tcm;
    struct sockaddr_nl sa;

    memset(buf, 0, sizeof(buf));

    /* Populate Netlink message header */
    nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    nlh->nlmsg_type = RTM_NEWQDISC;
    nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
    nlh->nlmsg_seq = 1;
    nlh->nlmsg_pid = 0;

    /* Populate Traffic Control message header */
    tcm = (struct tcmsg *)NLMSG_DATA(nlh);
    tcm->tcm_family = AF_UNSPEC;
    tcm->tcm_ifindex = ifindex;
    tcm->tcm_parent = parent;
    tcm->tcm_handle = handle;
    tcm->tcm_info = 0;

    /* Add TCA_KIND attribute if qdisc kind string is provided */
    if (kind && *kind) {
        if (addattr_l(nlh, sizeof(buf), TCA_KIND, kind, strlen(kind) + 1) < 0)
            return -1;
    }

    /* Add TCA_OPTIONS attribute if option buffer is provided */
    if (opt && opt_len > 0) {
        if (addattr_l(nlh, sizeof(buf), TCA_OPTIONS, opt, opt_len) < 0)
            return -1;
    }

    /* Destination netlink address (kernel) */
    memset(&sa, 0, sizeof(sa));
    sa.nl_family = AF_NETLINK;

    if (sendto(fd, buf, nlh->nlmsg_len, 0, (struct sockaddr *)&sa, sizeof(sa)) < 0)
        return -1;

    return 0;
}
```

### Explanation
1. **Netlink Header (`struct nlmsghdr`)**: Initialized with message type `RTM_NEWQDISC` and flags `NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL` to request creation of a new qdisc exclusively.
2. **Traffic Control Header (`struct tcmsg`)**: Positioned at `NLMSG_DATA(nlh)`. `tcm_family` is set to `AF_UNSPEC`, `tcm_ifindex` to the interface index, `tcm_parent` to the parent qdisc handle, and `tcm_handle` to the handle for the new qdisc.
3. **Netlink Attributes (`struct rtattr`)**:
   - `TCA_KIND`: Appended as a NUL-terminated string attribute containing the qdisc kind (e.g. `"fq_codel"`, `"prio"`, `"ingress"`).
   - `TCA_OPTIONS`: Appended with the option payload buffer (`opt`) of length `opt_len`.
4. **Sending**: The constructed message buffer is sent over the netlink socket `fd` to the kernel (`AF_NETLINK`). It returns `0` on success or `-1` on error.]

753/6 2026/08/15 19:31 agent codeexpert
2m Model:
good-balanced

Results:
map[Answer:To send an `RTM_NEWQDISC` netlink message to add a qdisc, the message must consist of a netlink header (`struct nlmsghdr`) followed by a traffic control message header (`struct tcmsg`), and optional netlink attributes for the qdisc kind (`TCA_KIND`) and qdisc configuration options (`TCA_OPTIONS`).

Here is the implementation of the `add_qdisc` function in C:

```c
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <string.h>
#include <stdint.h>

static int addattr_l(struct nlmsghdr *n, size_t maxlen, int type, const void *data, size_t alen)
{
    size_t len = RTA_LENGTH(alen);
    struct rtattr *rta;

    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen)
        return -1;

    rta = (struct rtattr *)((char *)n + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data && alen > 0)
        memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
    return 0;
}

int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len)
{
    char buf[4096];
    struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
    struct tcmsg *tcm;
    struct sockaddr_nl sa;

    memset(buf, 0, sizeof(buf));

    /* Populate Netlink message header */
    nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    nlh->nlmsg_type = RTM_NEWQDISC;
    nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
    nlh->nlmsg_seq = 1;
    nlh->nlmsg_pid = 0;

    /* Populate Traffic Control message header */
    tcm = (struct tcmsg *)NLMSG_DATA(nlh);
    tcm->tcm_family = AF_UNSPEC;
    tcm->tcm_ifindex = ifindex;
    tcm->tcm_parent = parent;
    tcm->tcm_handle = handle;
    tcm->tcm_info = 0;

    /* Add TCA_KIND attribute if qdisc kind string is provided */
    if (kind && *kind) {
        if (addattr_l(nlh, sizeof(buf), TCA_KIND, kind, strlen(kind) + 1) < 0)
            return -1;
    }

    /* Add TCA_OPTIONS attribute if option buffer is provided */
    if (opt && opt_len > 0) {
        if (addattr_l(nlh, sizeof(buf), TCA_OPTIONS, opt, opt_len) < 0)
            return -1;
    }

    /* Destination netlink address (kernel) */
    memset(&sa, 0, sizeof(sa));
    sa.nl_family = AF_NETLINK;

    if (sendto(fd, buf, nlh->nlmsg_len, 0, (struct sockaddr *)&sa, sizeof(sa)) < 0)
        return -1;

    return 0;
}
```

### Explanation
1. **Netlink Header (`struct nlmsghdr`)**: Initialized with message type `RTM_NEWQDISC` and flags `NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL` to request creation of a new qdisc exclusively.
2. **Traffic Control Header (`struct tcmsg`)**: Positioned at `NLMSG_DATA(nlh)`. `tcm_family` is set to `AF_UNSPEC`, `tcm_ifindex` to the interface index, `tcm_parent` to the parent qdisc handle, and `tcm_handle` to the handle for the new qdisc.
3. **Netlink Attributes (`struct rtattr`)**:
   - `TCA_KIND`: Appended as a NUL-terminated string attribute containing the qdisc kind (e.g. `"fq_codel"`, `"prio"`, `"ingress"`).
   - `TCA_OPTIONS`: Appended with the option payload buffer (`opt`) of length `opt_len`.
4. **Sending**: The constructed message buffer is sent over the netlink socket `fd` to the kernel (`AF_NETLINK`). It returns `0` on success or `-1` on error.]

Instruction:
You are a capable Linux kernel developer tasked with researching complex questions
about kernel source code. You will be given a concrete question, and need to provide
a concrete answer.
Use tools extensively while researching the question. Don't make assumptions,
or rely on your previous knowledge about the kernel source code, use available tools
to access the actual source code.
Use all available sources of information:
 - kernel source code
 - documentation in the Documentation dir in the source tree

Do not guess file names or file paths and attempt to read them without
verifying their existence first using content search or directory listing tools.
If a file, symbol, or directory is not found via content search (grepper) or
directory listing (codesearch-dir-index), treat it as completely absent.
Do not attempt to guess alternative names, extensions, or directories.

Tool Selection Guidelines:
1. For C functions, structs, and variables: Prefer codesearch-definition-source
   or codesearch-struct-layout FIRST to retrieve clean, exact definitions
   without line-number guessing.
2. If symbol lookup fails (e.g., preprocessor macros, macro-generated code, or
   disabled #ifdef branches), fall back to read-file or grepper.
3. For file headers, #include directives, preprocessor macro definitions, and
   non-C files (Kconfig, Makefiles, docs): Use read-file or grepper directly.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Write a C function `int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len)` that sends an RTM_NEWQDISC netlink message to add a qdisc. The function should construct the netlink message with the given parameters and send it.

754/7 2026/08/15 19:31 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 2390
							output: 21
							thoughts: 255
						

Thoughts:
**My Thought Process for Creating the `add_qdisc` Function**

Alright, so the core task at hand is to craft a C function, specifically `int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len)`, which will be responsible for adding a queuing discipline (qdisc) using netlink. This means I need to construct and transmit an `RTM_NEWQDISC` netlink message.

My first instinct is to dive into the specifics of how these netlink messages are structured. This isn't something I can just guess; I need to consult the established standards and implementations. My research will focus on a few key areas:

*   **The `RTM_NEWQDISC` message itself:** What are its fundamental components and how does it signify the intent to add a qdisc?
*   **The `struct tcmsg`:** This is likely the central structure for traffic control netlink messages. I need to understand how its fields map to the parameters I'm given (like `ifindex`, `parent`, and `handle`).
*   **Netlink header (`struct nlmsghdr`):** This is the generic netlink message header. I need to know what flags (like `NLM_F_CREATE`, `NLM_F_EXCL`, `NLM_F_REQUEST`, `NLM_F_ACK`) are appropriate for this operation and how to populate the `nlmsg_type` field to correctly identify it as an `RTM_NEWQDISC` message.
*   **Netlink attributes:** The `kind` of qdisc and its associated `options` will undoubtedly be passed as netlink attributes. I'll be looking for constants like `TCA_KIND` and `TCA_OPTIONS` and understanding how to serialize and attach these attributes to the netlink message.

To facilitate this research, I'll leverage my tools. I'll use `grepper` or `codesearch-find-references` to scour the Linux kernel source tree. My targets will be occurrences of `struct tcmsg`, `RTM_NEWQDISC`, and any relevant netlink attribute definitions specifically for traffic control (`tc`). I'm particularly interested in seeing how existing user-space tools or kernel modules construct similar messages, as this often provides practical examples and reveals hidden intricacies. I'll be looking for patterns in how these attributes are encoded, especially for variable-length data like the `opt` parameter.

Ultimately, my goal is to assemble a netlink message that precisely conforms to the RTNETLINK protocol for adding a qdisc, incorporating all the provided parameters, and then successfully send it out via the provided file descriptor (`fd`).


755/7 2026/08/15 19:31 tool grepper
0m Args:
map[Expression:RTM_NEWQDISC]

Results:
map[Output:include/uapi/linux/rtnetlink.h=24=enum {
--
include/uapi/linux/rtnetlink.h-64-
include/uapi/linux/rtnetlink.h:65:	RTM_NEWQDISC	= 36,
include/uapi/linux/rtnetlink.h:66:#define RTM_NEWQDISC	RTM_NEWQDISC
include/uapi/linux/rtnetlink.h-67-	RTM_DELQDISC,
--
net/sched/sch_api.c=996=static int qdisc_get_notify(struct net *net, struct sk_buff *oskb,
--
net/sched/sch_api.c-1008-		if (tc_fill_qdisc(skb, q, clid, portid, n->nlmsg_seq, 0,
net/sched/sch_api.c:1009:				  RTM_NEWQDISC, extack) < 0)
net/sched/sch_api.c-1010-			goto err_out;
--
net/sched/sch_api.c=1022=static int qdisc_notify(struct net *net, struct sk_buff *oskb,
--
net/sched/sch_api.c-1043-		if (tc_fill_qdisc(skb, new, clid, portid, n->nlmsg_seq,
net/sched/sch_api.c:1044:				  old ? NLM_F_REPLACE : 0, RTM_NEWQDISC, extack) < 0)
net/sched/sch_api.c-1045-			goto err_out;
--
net/sched/sch_api.c=1827=static int tc_dump_qdisc_root(struct Qdisc *root, struct sk_buff *skb,
--
net/sched/sch_api.c-1849-					nlh->nlmsg_seq, NLM_F_MULTI,
net/sched/sch_api.c:1850:					RTM_NEWQDISC, NULL);
net/sched/sch_api.c-1851-		if (ret < 0)
--
net/sched/sch_api.c-1873-					    nlh->nlmsg_seq, NLM_F_MULTI,
net/sched/sch_api.c:1874:					    RTM_NEWQDISC, NULL);
net/sched/sch_api.c-1875-		if (ret < 0)
--
net/sched/sch_api.c=2500=static const struct rtnl_msg_handler psched_rtnl_msg_handlers[] __initconst = {
net/sched/sch_api.c:2501:	{.msgtype = RTM_NEWQDISC, .doit = tc_modify_qdisc},
net/sched/sch_api.c-2502-	{.msgtype = RTM_DELQDISC, .doit = tc_get_qdisc},
--
net/sched/sch_fifo.c=231=int fifo_set_limit(struct Qdisc *q, unsigned int limit)
--
net/sched/sch_fifo.c-244-	if (nla) {
net/sched/sch_fifo.c:245:		nla->nla_type = RTM_NEWQDISC;
net/sched/sch_fifo.c-246-		nla->nla_len = nla_attr_size(sizeof(struct tc_fifo_qopt));
--
security/selinux/nlmsgtab.c=28=static const struct nlmsg_perm nlmsg_route_perms[] = {
--
security/selinux/nlmsgtab.c-44-	{ RTM_GETRULE, NETLINK_ROUTE_SOCKET__NLMSG_READ },
security/selinux/nlmsgtab.c:45:	{ RTM_NEWQDISC, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
security/selinux/nlmsgtab.c-46-	{ RTM_DELQDISC, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
--
tools/include/uapi/linux/rtnetlink.h=24=enum {
--
tools/include/uapi/linux/rtnetlink.h-64-
tools/include/uapi/linux/rtnetlink.h:65:	RTM_NEWQDISC	= 36,
tools/include/uapi/linux/rtnetlink.h:66:#define RTM_NEWQDISC	RTM_NEWQDISC
tools/include/uapi/linux/rtnetlink.h-67-	RTM_DELQDISC,
--
tools/lib/bpf/netlink.c=621=static int tc_qdisc_create_excl(struct bpf_tc_hook *hook)
tools/lib/bpf/netlink.c-622-{
tools/lib/bpf/netlink.c:623:	return tc_qdisc_modify(hook, RTM_NEWQDISC, NLM_F_CREATE | NLM_F_EXCL);
tools/lib/bpf/netlink.c-624-}
--
tools/testing/selftests/bpf/prog_tests/tc_links.c=1798=static int qdisc_replace(int ifindex, const char *kind, bool block)
--
tools/testing/selftests/bpf/prog_tests/tc_links.c-1810-	req.n.nlmsg_flags = NLM_F_CREATE | NLM_F_REPLACE | NLM_F_REQUEST;
tools/testing/selftests/bpf/prog_tests/tc_links.c:1811:	req.n.nlmsg_type = RTM_NEWQDISC;
tools/testing/selftests/bpf/prog_tests/tc_links.c-1812-	req.t.tcm_family = AF_UNSPEC;
]

756/7 2026/08/15 19:31 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 4167
							output: 28
							thoughts: 120
						

Thoughts:
**My Thought Process on tc Qdisc Netlink Interaction**

Alright, to really get a handle on how netlink messages related to `tc` qdiscs are constructed and transmitted, I need to dive into the code. My immediate instinct is to examine two key files: `tools/lib/bpf/netlink.c` and `tools/testing/selftests/bpf/prog_tests/tc_links.c`. These seem like the most direct places to find the logic for building and sending these specific types of netlink requests.

Beyond those two, I'll also be looking at the kernel source itself, specifically around the `tc_modify_qdisc` syscall handler. Understanding how the kernel interprets these messages is crucial. Additionally, I'll keep an eye on the netlink helper functions that are often provided within the `selftests/tools` directory of the kernel source, as these are designed to abstract away much of the low-level netlink boilerplate and are likely where the actual message formatting and sending will be implemented. My goal is to trace the flow from a higher-level BPF program or test case down to the actual raw netlink packets being sent to the kernel.


757/7 2026/08/15 19:31 tool grepper
0m Args:
map[Expression:tc_qdisc_modify PathPrefix:tools/]

Results:
map[Output:tools/lib/bpf/netlink.c=575=static int tc_get_tcm_parent(enum bpf_tc_attach_point attach_point,
--
tools/lib/bpf/netlink.c-596-
tools/lib/bpf/netlink.c:597:static int tc_qdisc_modify(struct bpf_tc_hook *hook, int cmd, int flags)
tools/lib/bpf/netlink.c-598-{
--
tools/lib/bpf/netlink.c=621=static int tc_qdisc_create_excl(struct bpf_tc_hook *hook)
tools/lib/bpf/netlink.c-622-{
tools/lib/bpf/netlink.c:623:	return tc_qdisc_modify(hook, RTM_NEWQDISC, NLM_F_CREATE | NLM_F_EXCL);
tools/lib/bpf/netlink.c-624-}
--
tools/lib/bpf/netlink.c=626=static int tc_qdisc_delete(struct bpf_tc_hook *hook)
tools/lib/bpf/netlink.c-627-{
tools/lib/bpf/netlink.c:628:	return tc_qdisc_modify(hook, RTM_DELQDISC, 0);
tools/lib/bpf/netlink.c-629-}
]

758/7 2026/08/15 19:31 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 4667
							output: 39
							thoughts: 29
						

Thoughts:
**My Thought Process Regarding `netlink.c`**

Alright, so my current task involves delving into the `tools/lib/bpf/netlink.c` file, specifically focusing on the section between lines 570 and 650. I need to understand what's happening within this particular code block. I'll be looking for functions, data structures, and the overall logic that governs how Netlink communication is handled within this BPF tooling library. My assumption is that this section likely deals with the nuts and bolts of establishing, managing, or sending Netlink messages, perhaps related to BPF program loading, map operations, or event notification. I'll pay close attention to any error handling, buffer management, and the underlying system calls being utilized. Given my expertise, I'm expecting to see well-defined structures and clear control flow, but I'll be prepared for any intricate details or edge cases that might be present. The goal is to gain a comprehensive grasp of this specific functionality so I can integrate it or build upon it effectively.


759/7 2026/08/15 19:31 tool read-file
0m Args:
map[File:tools/lib/bpf/netlink.c FirstLine:570 LineCount:80]

Results:
map[Contents: 570:		default:
 571:			return -EINVAL;
 572:		}
 573:	}
 574:	
 575:	static int tc_get_tcm_parent(enum bpf_tc_attach_point attach_point,
 576:				     __u32 *parent)
 577:	{
 578:		switch (attach_point) {
 579:		case BPF_TC_INGRESS:
 580:		case BPF_TC_EGRESS:
 581:			if (*parent)
 582:				return -EINVAL;
 583:			*parent = TC_H_MAKE(TC_H_CLSACT,
 584:					    attach_point == BPF_TC_INGRESS ?
 585:					    TC_H_MIN_INGRESS : TC_H_MIN_EGRESS);
 586:			break;
 587:		case BPF_TC_CUSTOM:
 588:			if (!*parent)
 589:				return -EINVAL;
 590:			break;
 591:		default:
 592:			return -EINVAL;
 593:		}
 594:		return 0;
 595:	}
 596:	
 597:	static int tc_qdisc_modify(struct bpf_tc_hook *hook, int cmd, int flags)
 598:	{
 599:		qdisc_config_t config;
 600:		int ret;
 601:		struct libbpf_nla_req req;
 602:	
 603:		ret = attach_point_to_config(hook, &config);
 604:		if (ret < 0)
 605:			return ret;
 606:	
 607:		memset(&req, 0, sizeof(req));
 608:		req.nh.nlmsg_len   = NLMSG_LENGTH(sizeof(struct tcmsg));
 609:		req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
 610:		req.nh.nlmsg_type  = cmd;
 611:		req.tc.tcm_family  = AF_UNSPEC;
 612:		req.tc.tcm_ifindex = OPTS_GET(hook, ifindex, 0);
 613:	
 614:		ret = config(&req, hook);
 615:		if (ret < 0)
 616:			return ret;
 617:	
 618:		return libbpf_netlink_send_recv(&req, NETLINK_ROUTE, NULL, NULL, NULL);
 619:	}
 620:	
 621:	static int tc_qdisc_create_excl(struct bpf_tc_hook *hook)
 622:	{
 623:		return tc_qdisc_modify(hook, RTM_NEWQDISC, NLM_F_CREATE | NLM_F_EXCL);
 624:	}
 625:	
 626:	static int tc_qdisc_delete(struct bpf_tc_hook *hook)
 627:	{
 628:		return tc_qdisc_modify(hook, RTM_DELQDISC, 0);
 629:	}
 630:	
 631:	int bpf_tc_hook_create(struct bpf_tc_hook *hook)
 632:	{
 633:		int ret;
 634:	
 635:		if (!hook || !OPTS_VALID(hook, bpf_tc_hook) ||
 636:		    OPTS_GET(hook, ifindex, 0) <= 0)
 637:			return libbpf_err(-EINVAL);
 638:	
 639:		ret = tc_qdisc_create_excl(hook);
 640:		return libbpf_err(ret);
 641:	}
 642:	
 643:	static int __bpf_tc_detach(const struct bpf_tc_hook *hook,
 644:				   const struct bpf_tc_opts *opts,
 645:				   const bool flush);
 646:	
 647:	int bpf_tc_hook_destroy(struct bpf_tc_hook *hook)
 648:	{
 649:		if (!hook || !OPTS_VALID(hook, bpf_tc_hook) ||
]

760/7 2026/08/15 19:31 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 5950
							output: 49
							thoughts: 48
						

Thoughts:
**My Thought Process Regarding `tc_links.c` and Netlink Message Construction for Qdiscs**

Ah, this is a crucial step in understanding how user-space tools interact with the kernel's traffic control subsystems. My immediate instinct is to delve into `tools/testing/selftests/bpf/prog_tests/tc_links.c`. I need to examine how `qdisc_replace` or related functions are being utilized within this test case. My primary objective here is to dissect the process of constructing Netlink messages that are specifically intended for manipulating or configuring traffic control queueing disciplines (qdiscs).

I'm looking for the granular details: what specific Netlink attributes are being populated? What Netlink commands (like `RTM_NEWQDISC` or `RTM_DELQDISC`) are being sent? How are the parameters for the qdisc itself (like its type, handle, parent, etc.) encoded into the Netlink message? I'm also keenly interested in how any associated data, such as classifier rules, filters, or specific qdisc parameters, are being marshaled. Is it using the standard Netlink `nlmsg_add` and `nla_put` family of functions? What is the overall structure of these messages? By tracing these operations within `tc_links.c`, I expect to gain a clear, practical understanding of the Netlink API in action for qdisc management, which will directly inform my own implementation or analysis.


761/7 2026/08/15 19:31 tool read-file
0m Args:
map[File:tools/testing/selftests/bpf/prog_tests/tc_links.c FirstLine:1795 LineCount:50]

Results:
map[Contents:1795:		char             buf[1024];
1796:	};
1797:	
1798:	static int qdisc_replace(int ifindex, const char *kind, bool block)
1799:	{
1800:		struct rtnl_handle rth = { .fd = -1 };
1801:		struct qdisc_req req;
1802:		int err;
1803:	
1804:		err = rtnl_open(&rth, 0);
1805:		if (!ASSERT_OK(err, "open_rtnetlink"))
1806:			return err;
1807:	
1808:		memset(&req, 0, sizeof(req));
1809:		req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
1810:		req.n.nlmsg_flags = NLM_F_CREATE | NLM_F_REPLACE | NLM_F_REQUEST;
1811:		req.n.nlmsg_type = RTM_NEWQDISC;
1812:		req.t.tcm_family = AF_UNSPEC;
1813:		req.t.tcm_ifindex = ifindex;
1814:		req.t.tcm_parent = 0xfffffff1;
1815:	
1816:		addattr_l(&req.n, sizeof(req), TCA_KIND, kind, strlen(kind) + 1);
1817:		if (block)
1818:			addattr32(&req.n, sizeof(req), TCA_INGRESS_BLOCK, 1);
1819:	
1820:		err = rtnl_talk(&rth, &req.n, NULL);
1821:		ASSERT_OK(err, "talk_rtnetlink");
1822:		rtnl_close(&rth);
1823:		return err;
1824:	}
1825:	
1826:	void test_ns_tc_links_dev_chain0(void)
1827:	{
1828:		int err, ifindex;
1829:	
1830:		ASSERT_OK(system("ip link add dev foo type veth peer name bar"), "add veth");
1831:		ifindex = if_nametoindex("foo");
1832:		ASSERT_NEQ(ifindex, 0, "non_zero_ifindex");
1833:		err = qdisc_replace(ifindex, "ingress", true);
1834:		if (!ASSERT_OK(err, "attaching ingress"))
1835:			goto cleanup;
1836:		ASSERT_OK(system("tc filter add block 1 matchall action skbmod swap mac"), "add block");
1837:		err = qdisc_replace(ifindex, "clsact", false);
1838:		if (!ASSERT_OK(err, "attaching clsact"))
1839:			goto cleanup;
1840:		/* Heuristic: kern_sync_rcu() alone does not work; a wait-time of ~5s
1841:		 * triggered the issue without the fix reliably 100% of the time.
1842:		 */
1843:		sleep(5);
1844:		ASSERT_OK(system("tc filter add dev foo ingress matchall action skbmod swap mac"), "add filter");
]

762/7 2026/08/15 19:31 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 6932
							output: 18
							thoughts: 62
						

Thoughts:
**My Thought Process on Investigating qdisc Netlink Integration**

My immediate inclination is to broaden my understanding of how qdisc (queueing discipline) configurations are handled via Netlink. To do this effectively, I need to see practical implementations, and the best place for that is within the kernel's own testing framework, user-space tools, or even the core kernel code responsible for network scheduling. My plan is to dive into these areas and extract as much detail as possible.

Specifically, I'm going to focus on a couple of key Netlink attributes that are fundamental to qdisc configuration: `TCA_KIND` and `TCA_OPTIONS`. These attributes, I suspect, are where the specifics of *what kind* of qdisc is being configured and *its particular parameters* are communicated. Therefore, I'll be using `grep` to systematically scan the `tools/`, `samples/`, and `net/sched/` directories within the kernel source tree. My expectation is that by examining how these attributes are used in these locations, I'll uncover a comprehensive picture of the Netlink interface for qdiscs, including various qdisc types and their associated options. This will be crucial for understanding the full scope of what's possible and how to implement it correctly myself.


763/7 2026/08/15 19:31 tool grepper
0m Args:
map[Expression:TCA_OPTIONS]

Results:
map[Output:include/uapi/linux/rtnetlink.h=635=enum {
--
include/uapi/linux/rtnetlink.h-637-	TCA_KIND,
include/uapi/linux/rtnetlink.h:638:	TCA_OPTIONS,
include/uapi/linux/rtnetlink.h-639-	TCA_STATS,
--
net/sched/cls_basic.c=172=static int basic_change(struct net *net, struct sk_buff *in_skb,
--
net/sched/cls_basic.c-182-
net/sched/cls_basic.c:183:	if (tca[TCA_OPTIONS] == NULL)
net/sched/cls_basic.c-184-		return -EINVAL;
net/sched/cls_basic.c-185-
net/sched/cls_basic.c:186:	err = nla_parse_nested_deprecated(tb, TCA_BASIC_MAX, tca[TCA_OPTIONS],
net/sched/cls_basic.c-187-					  basic_policy, NULL);
--
net/sched/cls_basic.c=269=static int basic_dump(struct net *net, struct tcf_proto *tp, void *fh,
--
net/sched/cls_basic.c-281-
net/sched/cls_basic.c:282:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/cls_basic.c-283-	if (nest == NULL)
--
net/sched/cls_bpf.c=409=static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
--
net/sched/cls_bpf.c-423-
net/sched/cls_bpf.c:424:	if (tca[TCA_OPTIONS] == NULL)
net/sched/cls_bpf.c-425-		return -EINVAL;
net/sched/cls_bpf.c-426-
net/sched/cls_bpf.c:427:	ret = nla_parse_nested_deprecated(tb, TCA_BPF_MAX, tca[TCA_OPTIONS],
net/sched/cls_bpf.c-428-					  bpf_policy, NULL);
--
net/sched/cls_bpf.c=579=static int cls_bpf_dump(struct net *net, struct tcf_proto *tp, void *fh,
--
net/sched/cls_bpf.c-593-
net/sched/cls_bpf.c:594:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/cls_bpf.c-595-	if (nest == NULL)
--
net/sched/cls_cgroup.c=78=static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb,
--
net/sched/cls_cgroup.c-88-
net/sched/cls_cgroup.c:89:	if (!tca[TCA_OPTIONS])
net/sched/cls_cgroup.c-90-		return -EINVAL;
--
net/sched/cls_cgroup.c-107-	err = nla_parse_nested_deprecated(tb, TCA_CGROUP_MAX,
net/sched/cls_cgroup.c:108:					  tca[TCA_OPTIONS], cgroup_policy,
net/sched/cls_cgroup.c-109-					  NULL);
--
net/sched/cls_cgroup.c=172=static int cls_cgroup_dump(struct net *net, struct tcf_proto *tp, void *fh,
--
net/sched/cls_cgroup.c-179-
net/sched/cls_cgroup.c:180:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/cls_cgroup.c-181-	if (nest == NULL)
--
net/sched/cls_flow.c=395=static int flow_change(struct net *net, struct sk_buff *in_skb,
--
net/sched/cls_flow.c-402-	struct flow_filter *fold, *fnew;
net/sched/cls_flow.c:403:	struct nlattr *opt = tca[TCA_OPTIONS];
net/sched/cls_flow.c-404-	struct nlattr *tb[TCA_FLOW_MAX + 1];
--
net/sched/cls_flow.c=635=static int flow_dump(struct net *net, struct tcf_proto *tp, void *fh,
--
net/sched/cls_flow.c-645-
net/sched/cls_flow.c:646:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/cls_flow.c-647-	if (nest == NULL)
--
net/sched/cls_flower.c=2353=static int fl_change(struct net *net, struct sk_buff *in_skb,
--
net/sched/cls_flower.c-2360-	bool rtnl_held = !(flags & TCA_ACT_FLAGS_NO_RTNL);
net/sched/cls_flower.c:2361:	struct nlattr *tca_opts = tca[TCA_OPTIONS];
net/sched/cls_flower.c-2362-	struct cls_fl_filter *fold = *arg;
--
net/sched/cls_flower.c=2802=static void *fl_tmplt_create(struct net *net, struct tcf_chain *chain,
--
net/sched/cls_flower.c-2805-{
net/sched/cls_flower.c:2806:	struct nlattr *tca_opts = tca[TCA_OPTIONS];
net/sched/cls_flower.c-2807-	struct fl_flow_tmplt *tmplt;
--
net/sched/cls_flower.c=3684=static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
--
net/sched/cls_flower.c-3696-
net/sched/cls_flower.c:3697:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/cls_flower.c-3698-	if (!nest)
--
net/sched/cls_flower.c=3742=static int fl_terse_dump(struct net *net, struct tcf_proto *tp, void *fh,
--
net/sched/cls_flower.c-3753-
net/sched/cls_flower.c:3754:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/cls_flower.c-3755-	if (!nest)
--
net/sched/cls_flower.c=3784=static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)
--
net/sched/cls_flower.c-3789-
net/sched/cls_flower.c:3790:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/cls_flower.c-3791-	if (!nest)
--
net/sched/cls_fw.c=243=static int fw_change(struct net *net, struct sk_buff *in_skb,
--
net/sched/cls_fw.c-249-	struct fw_filter *f = *arg;
net/sched/cls_fw.c:250:	struct nlattr *opt = tca[TCA_OPTIONS];
net/sched/cls_fw.c-251-	struct nlattr *tb[TCA_FW_MAX + 1];
--
net/sched/cls_fw.c=382=static int fw_dump(struct net *net, struct tcf_proto *tp, void *fh,
--
net/sched/cls_fw.c-396-
net/sched/cls_fw.c:397:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/cls_fw.c-398-	if (nest == NULL)
--
net/sched/cls_matchall.c=162=static int mall_change(struct net *net, struct sk_buff *in_skb,
--
net/sched/cls_matchall.c-174-
net/sched/cls_matchall.c:175:	if (!tca[TCA_OPTIONS])
net/sched/cls_matchall.c-176-		return -EINVAL;
--
net/sched/cls_matchall.c-181-	err = nla_parse_nested_deprecated(tb, TCA_MATCHALL_MAX,
net/sched/cls_matchall.c:182:					  tca[TCA_OPTIONS], mall_policy, NULL);
net/sched/cls_matchall.c-183-	if (err < 0)
--
net/sched/cls_matchall.c=328=static int mall_dump(struct net *net, struct tcf_proto *tp, void *fh,
--
net/sched/cls_matchall.c-343-
net/sched/cls_matchall.c:344:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/cls_matchall.c-345-	if (!nest)
--
net/sched/cls_route.c=476=static int route4_change(struct net *net, struct sk_buff *in_skb,
--
net/sched/cls_route.c-494-
net/sched/cls_route.c:495:	if (NL_REQ_ATTR_CHECK(extack, NULL, tca, TCA_OPTIONS)) {
net/sched/cls_route.c-496-		NL_SET_ERR_MSG_MOD(extack, "Missing options");
--
net/sched/cls_route.c-499-
net/sched/cls_route.c:500:	err = nla_parse_nested_deprecated(tb, TCA_ROUTE4_MAX, tca[TCA_OPTIONS],
net/sched/cls_route.c-501-					  route4_policy, NULL);
--
net/sched/cls_route.c=604=static int route4_dump(struct net *net, struct tcf_proto *tp, void *fh,
--
net/sched/cls_route.c-615-
net/sched/cls_route.c:616:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/cls_route.c-617-	if (nest == NULL)
--
net/sched/cls_u32.c=872=static int u32_change(struct net *net, struct sk_buff *in_skb,
--
net/sched/cls_u32.c-880-	struct tc_u32_sel *s;
net/sched/cls_u32.c:881:	struct nlattr *opt = tca[TCA_OPTIONS];
net/sched/cls_u32.c-882-	struct nlattr *tb[TCA_U32_MAX + 1];
--
net/sched/cls_u32.c=1345=static int u32_dump(struct net *net, struct tcf_proto *tp, void *fh,
--
net/sched/cls_u32.c-1356-
net/sched/cls_u32.c:1357:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/cls_u32.c-1358-	if (nest == NULL)
--
net/sched/sch_api.c=1248=static struct Qdisc *qdisc_create(struct net_device *dev,
--
net/sched/sch_api.c-1322-	if (ops->init) {
net/sched/sch_api.c:1323:		err = ops->init(sch, tca[TCA_OPTIONS], extack);
net/sched/sch_api.c-1324-		if (err != 0)
--
net/sched/sch_api.c=1370=static int qdisc_change(struct Qdisc *sch, struct nlattr **tca,
--
net/sched/sch_api.c-1375-
net/sched/sch_api.c:1376:	if (tca[TCA_OPTIONS]) {
net/sched/sch_api.c-1377-		if (!sch->ops->change) {
--
net/sched/sch_api.c-1384-		}
net/sched/sch_api.c:1385:		err = sch->ops->change(sch, tca[TCA_OPTIONS], extack);
net/sched/sch_api.c-1386-		if (err)
--
net/sched/sch_cake.c=2907=static int cake_config_dump(struct cake_sched_config *q, struct sk_buff *skb)
--
net/sched/sch_cake.c-2912-
net/sched/sch_cake.c:2913:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_cake.c-2914-	if (!opts)
--
net/sched/sch_cbs.c=466=static int cbs_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_cbs.c-471-
net/sched/sch_cbs.c:472:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_cbs.c-473-	if (!nest)
--
net/sched/sch_choke.c=435=static int choke_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_choke.c-449-
net/sched/sch_choke.c:450:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_choke.c-451-	if (opts == NULL)
--
net/sched/sch_codel.c=227=static int codel_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_codel.c-232-
net/sched/sch_codel.c:233:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_codel.c-234-	if (opts == NULL)
--
net/sched/sch_drr.c=58=static int drr_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
--
net/sched/sch_drr.c-63-	struct drr_class *cl = (struct drr_class *)*arg;
net/sched/sch_drr.c:64:	struct nlattr *opt = tca[TCA_OPTIONS];
net/sched/sch_drr.c-65-	struct nlattr *tb[TCA_DRR_MAX + 1];
--
net/sched/sch_drr.c=239=static int drr_dump_class(struct Qdisc *sch, unsigned long arg,
--
net/sched/sch_drr.c-248-
net/sched/sch_drr.c:249:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_drr.c-250-	if (nest == NULL)
--
net/sched/sch_dualpi2.c=1004=static int dualpi2_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_dualpi2.c-1013-
net/sched/sch_dualpi2.c:1014:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_dualpi2.c-1015-	if (!opts)
--
net/sched/sch_etf.c=460=static int etf_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_etf.c-465-
net/sched/sch_etf.c:466:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_etf.c-467-	if (!nest)
--
net/sched/sch_ets.c=208=static int ets_class_change(struct Qdisc *sch, u32 classid, u32 parentid,
--
net/sched/sch_ets.c-213-	struct ets_sched *q = qdisc_priv(sch);
net/sched/sch_ets.c:214:	struct nlattr *opt = tca[TCA_OPTIONS];
net/sched/sch_ets.c-215-	struct nlattr *tb[TCA_ETS_MAX + 1];
--
net/sched/sch_ets.c=306=static int ets_class_dump(struct Qdisc *sch, unsigned long arg,
--
net/sched/sch_ets.c-316-
net/sched/sch_ets.c:317:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_ets.c-318-	if (!nest)
--
net/sched/sch_ets.c=743=static int ets_qdisc_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_ets.c-756-
net/sched/sch_ets.c:757:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_ets.c-758-	if (!opts)
--
net/sched/sch_fifo.c=159=static int __fifo_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_fifo.c-162-
net/sched/sch_fifo.c:163:	if (nla_put(skb, TCA_OPTIONS, sizeof(opt), &opt))
net/sched/sch_fifo.c-164-		goto nla_put_failure;
--
net/sched/sch_fq.c=1267=static int fq_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_fq.c-1278-
net/sched/sch_fq.c:1279:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_fq.c-1280-	if (opts == NULL)
--
net/sched/sch_fq_codel.c=572=static int fq_codel_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_fq_codel.c-577-
net/sched/sch_fq_codel.c:578:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_fq_codel.c-579-	if (opts == NULL)
--
net/sched/sch_fq_pie.c=473=static int fq_pie_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_fq_pie.c-477-
net/sched/sch_fq_pie.c:478:	opts = nla_nest_start(skb, TCA_OPTIONS);
net/sched/sch_fq_pie.c-479-	if (!opts)
--
net/sched/sch_generic.c=889=static int pfifo_fast_dump(struct Qdisc *qdisc, struct sk_buff *skb)
--
net/sched/sch_generic.c-893-	memcpy(&opt.priomap, sch_default_prio2band, TC_PRIO_MAX + 1);
net/sched/sch_generic.c:894:	if (nla_put(skb, TCA_OPTIONS, sizeof(opt), &opt))
net/sched/sch_generic.c-895-		goto nla_put_failure;
--
net/sched/sch_gred.c=768=static int gred_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_gred.c-783-
net/sched/sch_gred.c:784:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_gred.c-785-	if (opts == NULL)
--
net/sched/sch_hfsc.c=912=hfsc_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
--
net/sched/sch_hfsc.c-918-	struct hfsc_class *parent = NULL;
net/sched/sch_hfsc.c:919:	struct nlattr *opt = tca[TCA_OPTIONS];
net/sched/sch_hfsc.c-920-	struct nlattr *tb[TCA_HFSC_MAX + 1];
--
net/sched/sch_hfsc.c=1308=hfsc_dump_class(struct Qdisc *sch, unsigned long arg, struct sk_buff *skb,
--
net/sched/sch_hfsc.c-1319-
net/sched/sch_hfsc.c:1320:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_hfsc.c-1321-	if (nest == NULL)
--
net/sched/sch_hfsc.c=1521=hfsc_dump_qdisc(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_hfsc.c-1527-	qopt.defcls = READ_ONCE(q->defcls);
net/sched/sch_hfsc.c:1528:	if (nla_put(skb, TCA_OPTIONS, sizeof(qopt), &qopt))
net/sched/sch_hfsc.c-1529-		goto nla_put_failure;
--
net/sched/sch_hhf.c=685=static int hhf_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_hhf.c-689-
net/sched/sch_hhf.c:690:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_hhf.c-691-	if (opts == NULL)
--
net/sched/sch_htb.c=1207=static int htb_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_htb.c-1223-
net/sched/sch_htb.c:1224:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_htb.c-1225-	if (nest == NULL)
--
net/sched/sch_htb.c=1240=static int htb_dump_class(struct Qdisc *sch, unsigned long arg,
--
net/sched/sch_htb.c-1255-
net/sched/sch_htb.c:1256:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_htb.c-1257-	if (nest == NULL)
--
net/sched/sch_htb.c=1762=static int htb_change_class(struct Qdisc *sch, u32 classid,
--
net/sched/sch_htb.c-1769-	struct tc_htb_qopt_offload offload_opt;
net/sched/sch_htb.c:1770:	struct nlattr *opt = tca[TCA_OPTIONS];
net/sched/sch_htb.c-1771-	struct nlattr *tb[TCA_HTB_MAX + 1];
--
net/sched/sch_ingress.c=135=static int ingress_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_ingress.c-138-
net/sched/sch_ingress.c:139:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_ingress.c-140-	if (nest == NULL)
--
net/sched/sch_mqprio.c=202=static int mqprio_parse_tc_entries(struct Qdisc *sch, struct nlattr *nlattr_opt,
--
net/sched/sch_mqprio.c-239-/* Parse the other netlink attributes that represent the payload of
net/sched/sch_mqprio.c:240: * TCA_OPTIONS, which are appended right after struct tc_mqprio_qopt.
net/sched/sch_mqprio.c-241- */
net/sched/sch_mqprio.c=242=static int mqprio_parse_nlattr(struct Qdisc *sch, struct tc_mqprio_qopt *qopt,
--
net/sched/sch_mqprio.c-262-		NL_SET_ERR_MSG(extack,
net/sched/sch_mqprio.c:263:			       "mqprio TCA_OPTIONS can only contain netlink attributes in hardware mode");
net/sched/sch_mqprio.c-264-		return -EINVAL;
--
net/sched/sch_mqprio.c=552=static int mqprio_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_mqprio.c-598-
net/sched/sch_mqprio.c:599:	if (nla_put(skb, TCA_OPTIONS, sizeof(opt), &opt))
net/sched/sch_mqprio.c-600-		goto nla_put_failure;
--
net/sched/sch_multiq.c=261=static int multiq_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_multiq.c-269-
net/sched/sch_multiq.c:270:	if (nla_put(skb, TCA_OPTIONS, sizeof(opt), &opt))
net/sched/sch_multiq.c-271-		goto nla_put_failure;
--
net/sched/sch_netem.c=1250=static int netem_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_netem.c-1268-	qopt.duplicate = q->duplicate;
net/sched/sch_netem.c:1269:	if (nla_put(skb, TCA_OPTIONS, sizeof(qopt), &qopt))
net/sched/sch_netem.c-1270-		goto nla_put_failure;
--
net/sched/sch_pie.c=466=static int pie_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_pie.c-470-
net/sched/sch_pie.c:471:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_pie.c-472-	if (!opts)
--
net/sched/sch_prio.c=262=static int prio_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_prio.c-275-
net/sched/sch_prio.c:276:	if (nla_put(skb, TCA_OPTIONS, sizeof(opt), &opt))
net/sched/sch_prio.c-277-		goto nla_put_failure;
--
net/sched/sch_qfq.c=406=static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
--
net/sched/sch_qfq.c-418-
net/sched/sch_qfq.c:419:	if (NL_REQ_ATTR_CHECK(extack, NULL, tca, TCA_OPTIONS)) {
net/sched/sch_qfq.c-420-		NL_SET_ERR_MSG_MOD(extack, "missing options");
--
net/sched/sch_qfq.c-423-
net/sched/sch_qfq.c:424:	err = nla_parse_nested_deprecated(tb, TCA_QFQ_MAX, tca[TCA_OPTIONS],
net/sched/sch_qfq.c-425-					  qfq_policy, extack);
--
net/sched/sch_qfq.c=627=static int qfq_dump_class(struct Qdisc *sch, unsigned long arg,
--
net/sched/sch_qfq.c-637-
net/sched/sch_qfq.c:638:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_qfq.c-639-	if (nest == NULL)
--
net/sched/sch_red.c=418=static int red_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_red.c-437-
net/sched/sch_red.c:438:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_red.c-439-	if (opts == NULL)
--
net/sched/sch_sfb.c=579=static int sfb_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_sfb.c-595-	WRITE_ONCE(sch->qstats.backlog, READ_ONCE(q->qdisc->qstats.backlog));
net/sched/sch_sfb.c:596:	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_sfb.c-597-	if (opts == NULL)
--
net/sched/sch_sfq.c=833=static int sfq_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_sfq.c-859-
net/sched/sch_sfq.c:860:	if (nla_put(skb, TCA_OPTIONS, sizeof(opt), &opt))
net/sched/sch_sfq.c-861-		goto nla_put_failure;
--
net/sched/sch_skbprio.c=198=static int skbprio_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_skbprio.c-203-
net/sched/sch_skbprio.c:204:	if (nla_put(skb, TCA_OPTIONS, sizeof(opt), &opt))
net/sched/sch_skbprio.c-205-		return -1;
--
net/sched/sch_taprio.c=2387=static int taprio_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_taprio.c-2397-
net/sched/sch_taprio.c:2398:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_taprio.c-2399-	if (!nest)
--
net/sched/sch_tbf.c=515=static int tbf_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_tbf.c-525-
net/sched/sch_tbf.c:526:	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
net/sched/sch_tbf.c-527-	if (nest == NULL)
--
tools/bpf/bpftool/netlink_dumper.c=161=int do_filter_dump(struct tcmsg *info, struct nlattr **tb, const char *kind,
--
tools/bpf/bpftool/netlink_dumper.c-165-
tools/bpf/bpftool/netlink_dumper.c:166:	if (tb[TCA_OPTIONS] &&
tools/bpf/bpftool/netlink_dumper.c-167-	    strcmp(libbpf_nla_data(tb[TCA_KIND]), "bpf") == 0) {
--
tools/bpf/bpftool/netlink_dumper.c-172-		NET_DUMP_STR("kind", " %s", kind);
tools/bpf/bpftool/netlink_dumper.c:173:		ret = do_bpf_filter_dump(tb[TCA_OPTIONS]);
tools/bpf/bpftool/netlink_dumper.c-174-		NET_END_OBJECT_FINAL;
--
tools/include/uapi/linux/rtnetlink.h=635=enum {
--
tools/include/uapi/linux/rtnetlink.h-637-	TCA_KIND,
tools/include/uapi/linux/rtnetlink.h:638:	TCA_OPTIONS,
tools/include/uapi/linux/rtnetlink.h-639-	TCA_STATS,
--
tools/lib/bpf/netlink.c=672=static int __get_tc_info(void *cookie, struct tcmsg *tc, struct nlattr **tb,
--
tools/lib/bpf/netlink.c-681-		return -EINVAL;
tools/lib/bpf/netlink.c:682:	if (!tb[TCA_OPTIONS])
tools/lib/bpf/netlink.c-683-		return NL_CONT;
tools/lib/bpf/netlink.c-684-
tools/lib/bpf/netlink.c:685:	libbpf_nla_parse_nested(tbb, TCA_BPF_MAX, tb[TCA_OPTIONS], NULL);
tools/lib/bpf/netlink.c-686-	if (!tbb[TCA_BPF_ID])
--
tools/lib/bpf/netlink.c=734=int bpf_tc_attach(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)
--
tools/lib/bpf/netlink.c-784-		return libbpf_err(ret);
tools/lib/bpf/netlink.c:785:	nla = nlattr_begin_nested(&req, TCA_OPTIONS);
tools/lib/bpf/netlink.c-786-	if (!nla)
]

764/7 2026/08/15 19:31 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 16102
							output: 17
							thoughts: 605
						

Thoughts:
**My Thought Process on Crafting the `add_qdisc` Netlink Function**

Right, so the core task here is to send a Netlink message to add a Quality of Service (QoS) disc, or "qdisc," in Linux. The prompt lays out a specific C function signature: `int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len)`. My first step is to thoroughly dissect what each of these parameters represents and how they map onto the Netlink message structure for qdisc operations.

*   `fd`: This is straightforward. It's the file descriptor for the Netlink socket. I'll need this to actually send the message.
*   `ifindex`: This identifies the network interface where the qdisc will be attached. I'm thinking of common examples like `eth0` and needing its numerical index.
*   `parent`: This is crucial for hierarchical QoS. It signifies the parent qdisc or its handle. I recall values like `TC_H_ROOT` or specific hexadecimal representations indicating the root of the hierarchy or a specific parent.
*   `handle`: This is the unique identifier for the qdisc I'm creating. It's often in a `major:minor` format, like `1:0`, or constructed using `TC_H_MAKE`.
*   `kind`: This specifies the type of qdisc I want to create. The prompt gives good examples: `fq_codel`, `prio`, `htb`, `ingress`, `clsact`. This will be a string.
*   `opt` and `opt_len`: These are for any qdisc-specific options. This data will likely form the payload for the `TCA_OPTIONS` attribute. If there are no options, these will be NULL and 0, respectively.

Now, the really interesting part: how do these translate into a Netlink message? I need to understand the underlying Netlink and rtnetlink structures. Specifically, I'm thinking about:

*   `struct nlmsghdr`: The standard Netlink message header. This contains general information like the message type, length, and sequence number.
*   `struct tcmsg`: This is the Netlink message header specific to Traffic Control (TC). It carries information relevant to TC operations, like the interface index and the parent.
*   `struct rtattr` (or `struct nlattr`): These are Netlink attributes. They are used to carry data within a Netlink message. The question that immediately pops into my head is: in the context of `rtnetlink` and traffic control messages, are we using `struct rtattr` (with its `RTA_` prefixes) or `struct nlattr` (with `NLA_` prefixes)? This is a critical detail.

To figure this out, I need to consult the standard C headers and how they are used in practice. I'm mentally listing the necessary includes:

*   `<sys/socket.h>`: For socket-related operations.
*   `<linux/netlink.h>`: For the core Netlink definitions.
*   `<linux/rtnetlink.h>`: For rtnetlink-specific structures and constants.
*   `<linux/pkt_sched.h>`: This header is definitely needed for qdisc-related definitions, like `TC_H_ROOT`.
*   `<string.h>`: For string manipulation, especially with the `kind` parameter.
*   `<unistd.h>`: For standard POSIX functions like `write`.
*   `<errno.h>`: For error handling.
*   `<stdint.h>`: For fixed-width integer types like `uint32_t`.

My next thought is to confirm the attribute handling. I recall that rtnetlink messages are built using attributes. The question is whether the macros and structures used for parsing and building these attributes follow the `RTA_` convention (as seen in `struct rtattr`) or the `NLA_` convention (from `struct nlattr`). To be absolutely sure, I would typically look at how existing tools like `iproute2` or the kernel's own selftests handle Netlink attribute construction for qdiscs. I'd be searching for patterns like `RTA_NESTED`, `RTA_NEW`, `RTA_DATA`, `RTA_BUF`, or their `NLA_` equivalents in code related to `tc` and `qdisc` within the kernel source tree or user-space utilities. Specifically, I'd search for `struct tcmsg` within the kernel to see how it's used in conjunction with attributes. This would guide me in correctly formatting the `TCA_KIND`, `TCA_OPTIONS`, and potentially other attributes that constitute the qdisc configuration.


765/7 2026/08/15 19:32 tool grepper
0m Args:
map[Expression:struct tcmsg]

Results:
map[Output:Documentation/userspace-api/netlink/intro.rst=625=types (e.g. struct ifinfomsg for netdev requests, struct ifaddrmsg for address
Documentation/userspace-api/netlink/intro.rst:626:requests, struct tcmsg for qdisc requests).
Documentation/userspace-api/netlink/intro.rst-627-
--
include/net/sch_generic.h=266=struct Qdisc_class_ops {
--
include/net/sch_generic.h-268-	/* Child qdisc manipulation */
include/net/sch_generic.h:269:	struct netdev_queue *	(*select_queue)(struct Qdisc *, struct tcmsg *);
include/net/sch_generic.h-270-	int			(*graft)(struct Qdisc *, unsigned long cl,
--
include/net/sch_generic.h-294-	int			(*dump)(struct Qdisc *, unsigned long,
include/net/sch_generic.h:295:					struct sk_buff *skb, struct tcmsg*);
include/net/sch_generic.h-296-	int			(*dump_stats)(struct Qdisc *, unsigned long,
--
include/net/sch_generic.h=357=struct tcf_proto_ops {
--
include/net/sch_generic.h-403-	int			(*dump)(struct net*, struct tcf_proto*, void *,
include/net/sch_generic.h:404:					struct sk_buff *skb, struct tcmsg*,
include/net/sch_generic.h-405-					bool);
--
include/net/sch_generic.h-408-					      struct sk_buff *skb,
include/net/sch_generic.h:409:					      struct tcmsg *t, bool rtnl_held);
include/net/sch_generic.h-410-	int			(*tmplt_dump)(struct sk_buff *skb,
--
include/net/sch_priv.h=17=struct netdev_queue *mq_select_queue(struct Qdisc *sch,
include/net/sch_priv.h:18:				     struct tcmsg *tcm);
include/net/sch_priv.h-19-struct Qdisc *mq_leaf(struct Qdisc *sch, unsigned long cl);
--
include/net/sch_priv.h=21=int mq_dump_class(struct Qdisc *sch, unsigned long cl,
include/net/sch_priv.h:22:		  struct sk_buff *skb, struct tcmsg *tcm);
include/net/sch_priv.h-23-int mq_dump_class_stats(struct Qdisc *sch, unsigned long cl,
--
include/uapi/linux/rtnetlink.h=605=struct prefix_cacheinfo {
--
include/uapi/linux/rtnetlink.h-614-
include/uapi/linux/rtnetlink.h:615:struct tcmsg {
include/uapi/linux/rtnetlink.h-616-	unsigned char	tcm_family;
--
include/uapi/linux/rtnetlink.h=635=enum {
--
include/uapi/linux/rtnetlink.h-662-
include/uapi/linux/rtnetlink.h:663:#define TCA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
include/uapi/linux/rtnetlink.h:664:#define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
include/uapi/linux/rtnetlink.h-665-
--
net/sched/cls_api.c=2050=static int tcf_fill_node(struct net *net, struct sk_buff *skb,
--
net/sched/cls_api.c-2056-{
net/sched/cls_api.c:2057:	struct tcmsg *tcm;
net/sched/cls_api.c-2058-	struct nlmsghdr  *nlh;
--
net/sched/cls_api.c=2236=static int tc_new_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-2241-	char name[IFNAMSIZ];
net/sched/cls_api.c:2242:	struct tcmsg *t;
net/sched/cls_api.c-2243-	u32 protocol;
--
net/sched/cls_api.c=2472=static int tc_del_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-2477-	char name[IFNAMSIZ];
net/sched/cls_api.c:2478:	struct tcmsg *t;
net/sched/cls_api.c-2479-	u32 protocol;
--
net/sched/cls_api.c=2631=static int tc_get_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-2636-	char name[IFNAMSIZ];
net/sched/cls_api.c:2637:	struct tcmsg *t;
net/sched/cls_api.c-2638-	u32 protocol;
--
net/sched/cls_api.c=2777=static bool tcf_chain_dump(struct tcf_chain *chain, struct Qdisc *q, u32 parent,
--
net/sched/cls_api.c-2782-	struct tcf_block *block = chain->block;
net/sched/cls_api.c:2783:	struct tcmsg *tcm = nlmsg_data(cb->nlh);
net/sched/cls_api.c-2784-	struct tcf_proto *tp, *tp_prev;
--
net/sched/cls_api.c=2844=static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
--
net/sched/cls_api.c-2850-	struct tcf_block *block;
net/sched/cls_api.c:2851:	struct tcmsg *tcm = nlmsg_data(cb->nlh);
net/sched/cls_api.c-2852-	bool terse_dump = false;
--
net/sched/cls_api.c=2948=static int tc_chain_fill_node(const struct tcf_proto_ops *tmplt_ops,
--
net/sched/cls_api.c-2957-	struct nlmsghdr *nlh;
net/sched/cls_api.c:2958:	struct tcmsg *tcm;
net/sched/cls_api.c-2959-	void *priv;
--
net/sched/cls_api.c=3113=static int tc_ctl_chain(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-3117-	struct nlattr *tca[TCA_MAX + 1];
net/sched/cls_api.c:3118:	struct tcmsg *t;
net/sched/cls_api.c-3119-	u32 parent;
--
net/sched/cls_api.c=3245=static int tc_dump_chain(struct sk_buff *skb, struct netlink_callback *cb)
--
net/sched/cls_api.c-3250-	struct tcf_block *block;
net/sched/cls_api.c:3251:	struct tcmsg *tcm = nlmsg_data(cb->nlh);
net/sched/cls_api.c-3252-	struct tcf_chain *chain;
--
net/sched/cls_basic.c=269=static int basic_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_basic.c:270:		      struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_basic.c-271-{
--
net/sched/cls_bpf.c=579=static int cls_bpf_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_bpf.c:580:			struct sk_buff *skb, struct tcmsg *tm, bool rtnl_held)
net/sched/cls_bpf.c-581-{
--
net/sched/cls_cgroup.c=172=static int cls_cgroup_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_cgroup.c:173:			   struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_cgroup.c-174-{
--
net/sched/cls_flow.c=635=static int flow_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_flow.c:636:		     struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_flow.c-637-{
--
net/sched/cls_flower.c=3684=static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_flower.c:3685:		   struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_flower.c-3686-{
--
net/sched/cls_flower.c=3742=static int fl_terse_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_flower.c:3743:			 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_flower.c-3744-{
--
net/sched/cls_fw.c=382=static int fw_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_fw.c:383:		   struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_fw.c-384-{
--
net/sched/cls_matchall.c=328=static int mall_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_matchall.c:329:		     struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_matchall.c-330-{
--
net/sched/cls_route.c=604=static int route4_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_route.c:605:		       struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_route.c-606-{
--
net/sched/cls_u32.c=1345=static int u32_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_u32.c:1346:		    struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_u32.c-1347-{
--
net/sched/sch_api.c=898=static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid,
--
net/sched/sch_api.c-903-	struct gnet_stats_queue __percpu *cpu_qstats = NULL;
net/sched/sch_api.c:904:	struct tcmsg *tcm;
net/sched/sch_api.c-905-	struct nlmsghdr  *nlh;
--
net/sched/sch_api.c=982=static bool tc_qdisc_dump_ignore(struct Qdisc *q, bool dump_invisible,
net/sched/sch_api.c:983:				 const struct tcmsg *tcm)
net/sched/sch_api.c-984-{
--
net/sched/sch_api.c=1471=static int __tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1474-			  struct nlattr *tca[TCA_MAX + 1],
net/sched/sch_api.c:1475:			  struct tcmsg *tcm)
net/sched/sch_api.c-1476-{
--
net/sched/sch_api.c=1541=static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1544-	struct net *net = sock_net(skb->sk);
net/sched/sch_api.c:1545:	struct tcmsg *tcm = nlmsg_data(n);
net/sched/sch_api.c-1546-	struct nlattr *tca[TCA_MAX + 1];
--
net/sched/sch_api.c=1585=static int __tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1588-			     struct nlattr *tca[TCA_MAX + 1],
net/sched/sch_api.c:1589:			     struct tcmsg *tcm)
net/sched/sch_api.c-1590-{
--
net/sched/sch_api.c=1799=static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1804-	struct net_device *dev;
net/sched/sch_api.c:1805:	struct tcmsg *tcm;
net/sched/sch_api.c-1806-	int err;
--
net/sched/sch_api.c=1827=static int tc_dump_qdisc_root(struct Qdisc *root, struct sk_buff *skb,
--
net/sched/sch_api.c-1833-	int ret = 0, q_idx = *q_idx_p;
net/sched/sch_api.c:1834:	const struct tcmsg *tcm;
net/sched/sch_api.c-1835-	struct Qdisc *q;
--
net/sched/sch_api.c=1885=static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb)
--
net/sched/sch_api.c-1893-	} *ctx = (void *)cb->ctx;
net/sched/sch_api.c:1894:	const struct tcmsg *tcm;
net/sched/sch_api.c-1895-	struct net_device *dev;
--
net/sched/sch_api.c-1900-
net/sched/sch_api.c:1901:	err = nlmsg_parse_deprecated(nlh, sizeof(struct tcmsg), tca, TCA_MAX,
net/sched/sch_api.c-1902-				     rtm_tca_policy, cb->extack);
--
net/sched/sch_api.c=1953=static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
--
net/sched/sch_api.c-1956-{
net/sched/sch_api.c:1957:	struct tcmsg *tcm;
net/sched/sch_api.c-1958-	struct nlmsghdr  *nlh;
--
net/sched/sch_api.c=2174=static int __tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-2177-			   struct nlattr *tca[TCA_MAX + 1],
net/sched/sch_api.c:2178:			   struct tcmsg *tcm)
net/sched/sch_api.c-2179-{
--
net/sched/sch_api.c=2304=static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-2307-	struct net *net = sock_net(skb->sk);
net/sched/sch_api.c:2308:	struct tcmsg *tcm = nlmsg_data(n);
net/sched/sch_api.c-2309-	struct nlattr *tca[TCA_MAX + 1];
--
net/sched/sch_api.c=2345=static int tc_dump_tclass_qdisc(struct Qdisc *q, struct sk_buff *skb,
net/sched/sch_api.c:2346:				struct tcmsg *tcm, struct netlink_callback *cb,
net/sched/sch_api.c-2347-				int *t_p, int s_t)
--
net/sched/sch_api.c=2374=static int tc_dump_tclass_root(struct Qdisc *root, struct sk_buff *skb,
net/sched/sch_api.c:2375:			       struct tcmsg *tcm, struct netlink_callback *cb,
net/sched/sch_api.c-2376-			       int *t_p, int s_t, bool recur)
--
net/sched/sch_api.c=2405=static int __tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb,
net/sched/sch_api.c:2406:			    struct tcmsg *tcm, struct net_device *dev)
net/sched/sch_api.c-2407-{
--
net/sched/sch_api.c=2430=static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb)
net/sched/sch_api.c-2431-{
net/sched/sch_api.c:2432:	struct tcmsg *tcm = nlmsg_data(cb->nlh);
net/sched/sch_api.c-2433-	struct net *net = sock_net(skb->sk);
--
net/sched/sch_cake.c=3121=static int cake_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_cake.c:3122:			   struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_cake.c-3123-{
--
net/sched/sch_cbs.c=492=static int cbs_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_cbs.c:493:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_cbs.c-494-{
--
net/sched/sch_drr.c=239=static int drr_dump_class(struct Qdisc *sch, unsigned long arg,
net/sched/sch_drr.c:240:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_drr.c-241-{
--
net/sched/sch_ets.c=306=static int ets_class_dump(struct Qdisc *sch, unsigned long arg,
net/sched/sch_ets.c:307:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_ets.c-308-{
--
net/sched/sch_fq_codel.c=677=static int fq_codel_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_fq_codel.c:678:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_fq_codel.c-679-{
--
net/sched/sch_hfsc.c=1308=hfsc_dump_class(struct Qdisc *sch, unsigned long arg, struct sk_buff *skb,
net/sched/sch_hfsc.c:1309:		struct tcmsg *tcm)
net/sched/sch_hfsc.c-1310-{
--
net/sched/sch_htb.c=1240=static int htb_dump_class(struct Qdisc *sch, unsigned long arg,
net/sched/sch_htb.c:1241:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_htb.c-1242-{
--
net/sched/sch_htb.c=1366=static struct netdev_queue *
net/sched/sch_htb.c:1367:htb_select_queue(struct Qdisc *sch, struct tcmsg *tcm)
net/sched/sch_htb.c-1368-{
--
net/sched/sch_mq.c=202=struct netdev_queue *mq_select_queue(struct Qdisc *sch,
net/sched/sch_mq.c:203:				     struct tcmsg *tcm)
net/sched/sch_mq.c-204-{
--
net/sched/sch_mq.c=253=int mq_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_mq.c:254:		  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_mq.c-255-{
--
net/sched/sch_mqprio.c=653=static int mqprio_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_mqprio.c:654:			 struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_mqprio.c-655-{
--
net/sched/sch_mqprio.c=750=static struct netdev_queue *mqprio_select_queue(struct Qdisc *sch,
net/sched/sch_mqprio.c:751:						struct tcmsg *tcm)
net/sched/sch_mqprio.c-752-{
--
net/sched/sch_multiq.c=323=static int multiq_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_multiq.c:324:			     struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_multiq.c-325-{
--
net/sched/sch_netem.c=1352=static int netem_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_netem.c:1353:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_netem.c-1354-{
--
net/sched/sch_prio.c=345=static int prio_dump_class(struct Qdisc *sch, unsigned long cl, struct sk_buff *skb,
net/sched/sch_prio.c:346:			   struct tcmsg *tcm)
net/sched/sch_prio.c-347-{
--
net/sched/sch_qfq.c=627=static int qfq_dump_class(struct Qdisc *sch, unsigned long arg,
net/sched/sch_qfq.c:628:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_qfq.c-629-{
--
net/sched/sch_red.c=484=static int red_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_red.c:485:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_red.c-486-{
--
net/sched/sch_sfb.c=625=static int sfb_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_sfb.c:626:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_sfb.c-627-{
--
net/sched/sch_sfq.c=900=static int sfq_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_sfq.c:901:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_sfq.c-902-{
--
net/sched/sch_skbprio.c=242=static int skbprio_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_skbprio.c:243:			     struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_skbprio.c-244-{
--
net/sched/sch_taprio.c=2478=static int taprio_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_taprio.c:2479:			     struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_taprio.c-2480-{
--
net/sched/sch_taprio.c=2525=static struct netdev_queue *taprio_select_queue(struct Qdisc *sch,
net/sched/sch_taprio.c:2526:						struct tcmsg *tcm)
net/sched/sch_taprio.c-2527-{
--
net/sched/sch_tbf.c=557=static int tbf_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_tbf.c:558:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_tbf.c-559-{
--
tools/bpf/bpftool/main.h=250=struct ifinfomsg;
tools/bpf/bpftool/main.h:251:struct tcmsg;
tools/bpf/bpftool/main.h-252-int do_xdp_dump(struct ifinfomsg *ifinfo, struct nlattr **tb);
tools/bpf/bpftool/main.h:253:int do_filter_dump(struct tcmsg *ifinfo, struct nlattr **tb, const char *kind,
tools/bpf/bpftool/main.h-254-		   const char *devname, int ifindex);
--
tools/bpf/bpftool/net.c=213=static int __dump_class_nlmsg(struct nlmsghdr *nlh,
--
tools/bpf/bpftool/net.c-217-	struct nlattr *tb[TCA_MAX + 1], *attr;
tools/bpf/bpftool/net.c:218:	struct tcmsg *t = NLMSG_DATA(nlh);
tools/bpf/bpftool/net.c-219-	int len;
--
tools/bpf/bpftool/net.c=229=static int netlink_get_class(int sock, unsigned int nl_pid, int ifindex,
--
tools/bpf/bpftool/net.c-233-		struct nlmsghdr nlh;
tools/bpf/bpftool/net.c:234:		struct tcmsg t;
tools/bpf/bpftool/net.c-235-	} req = {
tools/bpf/bpftool/net.c:236:		.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
tools/bpf/bpftool/net.c-237-		.nlh.nlmsg_type = RTM_GETTCLASS,
--
tools/bpf/bpftool/net.c=252=static int __dump_qdisc_nlmsg(struct nlmsghdr *nlh,
--
tools/bpf/bpftool/net.c-256-	struct nlattr *tb[TCA_MAX + 1], *attr;
tools/bpf/bpftool/net.c:257:	struct tcmsg *t = NLMSG_DATA(nlh);
tools/bpf/bpftool/net.c-258-	int len;
--
tools/bpf/bpftool/net.c=268=static int netlink_get_qdisc(int sock, unsigned int nl_pid, int ifindex,
--
tools/bpf/bpftool/net.c-272-		struct nlmsghdr nlh;
tools/bpf/bpftool/net.c:273:		struct tcmsg t;
tools/bpf/bpftool/net.c-274-	} req = {
tools/bpf/bpftool/net.c:275:		.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
tools/bpf/bpftool/net.c-276-		.nlh.nlmsg_type = RTM_GETQDISC,
--
tools/bpf/bpftool/net.c=291=static int __dump_filter_nlmsg(struct nlmsghdr *nlh,
--
tools/bpf/bpftool/net.c-295-	struct nlattr *tb[TCA_MAX + 1], *attr;
tools/bpf/bpftool/net.c:296:	struct tcmsg *t = NLMSG_DATA(nlh);
tools/bpf/bpftool/net.c-297-	int len;
--
tools/bpf/bpftool/net.c=307=static int netlink_get_filter(int sock, unsigned int nl_pid, int ifindex, int handle,
--
tools/bpf/bpftool/net.c-311-		struct nlmsghdr nlh;
tools/bpf/bpftool/net.c:312:		struct tcmsg t;
tools/bpf/bpftool/net.c-313-	} req = {
tools/bpf/bpftool/net.c:314:		.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
tools/bpf/bpftool/net.c-315-		.nlh.nlmsg_type = RTM_GETTFILTER,
--
tools/bpf/bpftool/net.c=398=static int dump_class_qdisc_nlmsg(void *cookie, void *msg, struct nlattr **tb)
--
tools/bpf/bpftool/net.c-400-	struct bpf_tcinfo_t *tcinfo = cookie;
tools/bpf/bpftool/net.c:401:	struct tcmsg *info = msg;
tools/bpf/bpftool/net.c-402-	struct tc_kind_handle *tmp;
--
tools/bpf/bpftool/net.c=434=static int dump_filter_nlmsg(void *cookie, void *msg, struct nlattr **tb)
--
tools/bpf/bpftool/net.c-437-
tools/bpf/bpftool/net.c:438:	return do_filter_dump((struct tcmsg *)msg, tb, filter_info->kind,
tools/bpf/bpftool/net.c-439-			      filter_info->devname, filter_info->ifindex);
--
tools/bpf/bpftool/netlink_dumper.c=138=static int do_bpf_filter_dump(struct nlattr *attr)
--
tools/bpf/bpftool/netlink_dumper.c-160-
tools/bpf/bpftool/netlink_dumper.c:161:int do_filter_dump(struct tcmsg *info, struct nlattr **tb, const char *kind,
tools/bpf/bpftool/netlink_dumper.c-162-		   const char *devname, int ifindex)
--
tools/include/uapi/linux/rtnetlink.h=605=struct prefix_cacheinfo {
--
tools/include/uapi/linux/rtnetlink.h-614-
tools/include/uapi/linux/rtnetlink.h:615:struct tcmsg {
tools/include/uapi/linux/rtnetlink.h-616-	unsigned char	tcm_family;
--
tools/include/uapi/linux/rtnetlink.h=635=enum {
--
tools/include/uapi/linux/rtnetlink.h-662-
tools/include/uapi/linux/rtnetlink.h:663:#define TCA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
tools/include/uapi/linux/rtnetlink.h:664:#define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
tools/include/uapi/linux/rtnetlink.h-665-
--
tools/lib/bpf/netlink.c=597=static int tc_qdisc_modify(struct bpf_tc_hook *hook, int cmd, int flags)
--
tools/lib/bpf/netlink.c-607-	memset(&req, 0, sizeof(req));
tools/lib/bpf/netlink.c:608:	req.nh.nlmsg_len   = NLMSG_LENGTH(sizeof(struct tcmsg));
tools/lib/bpf/netlink.c-609-	req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
--
tools/lib/bpf/netlink.c=667=struct bpf_cb_ctx {
--
tools/lib/bpf/netlink.c-671-
tools/lib/bpf/netlink.c:672:static int __get_tc_info(void *cookie, struct tcmsg *tc, struct nlattr **tb,
tools/lib/bpf/netlink.c-673-			 bool unicast)
--
tools/lib/bpf/netlink.c=697=static int get_tc_info(struct nlmsghdr *nh, libbpf_dump_nlmsg_t fn,
--
tools/lib/bpf/netlink.c-699-{
tools/lib/bpf/netlink.c:700:	struct tcmsg *tc = NLMSG_DATA(nh);
tools/lib/bpf/netlink.c-701-	struct nlattr *tb[TCA_MAX + 1];
--
tools/lib/bpf/netlink.c=734=int bpf_tc_attach(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)
--
tools/lib/bpf/netlink.c-767-	memset(&req, 0, sizeof(req));
tools/lib/bpf/netlink.c:768:	req.nh.nlmsg_len   = NLMSG_LENGTH(sizeof(struct tcmsg));
tools/lib/bpf/netlink.c-769-	req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_CREATE |
--
tools/lib/bpf/netlink.c=808=static int __bpf_tc_detach(const struct bpf_tc_hook *hook,
--
tools/lib/bpf/netlink.c-844-	memset(&req, 0, sizeof(req));
tools/lib/bpf/netlink.c:845:	req.nh.nlmsg_len   = NLMSG_LENGTH(sizeof(struct tcmsg));
tools/lib/bpf/netlink.c-846-	req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
--
tools/lib/bpf/netlink.c=881=int bpf_tc_query(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)
--
tools/lib/bpf/netlink.c-911-	memset(&req, 0, sizeof(req));
tools/lib/bpf/netlink.c:912:	req.nh.nlmsg_len   = NLMSG_LENGTH(sizeof(struct tcmsg));
tools/lib/bpf/netlink.c-913-	req.nh.nlmsg_flags = NLM_F_REQUEST;
--
tools/lib/bpf/nlattr.h=57=struct libbpf_nla_req {
--
tools/lib/bpf/nlattr.h-60-		struct ifinfomsg ifinfo;
tools/lib/bpf/nlattr.h:61:		struct tcmsg tc;
tools/lib/bpf/nlattr.h-62-		struct genlmsghdr gnl;
--
tools/testing/selftests/bpf/prog_tests/tc_links.c=1792=struct qdisc_req {
tools/testing/selftests/bpf/prog_tests/tc_links.c-1793-	struct nlmsghdr  n;
tools/testing/selftests/bpf/prog_tests/tc_links.c:1794:	struct tcmsg     t;
tools/testing/selftests/bpf/prog_tests/tc_links.c-1795-	char             buf[1024];
--
tools/testing/selftests/bpf/prog_tests/tc_links.c=1798=static int qdisc_replace(int ifindex, const char *kind, bool block)
--
tools/testing/selftests/bpf/prog_tests/tc_links.c-1808-	memset(&req, 0, sizeof(req));
tools/testing/selftests/bpf/prog_tests/tc_links.c:1809:	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
tools/testing/selftests/bpf/prog_tests/tc_links.c-1810-	req.n.nlmsg_flags = NLM_F_CREATE | NLM_F_REPLACE | NLM_F_REQUEST;
]

766/7 2026/08/15 19:32 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 26598
							output: 40
							thoughts: 34
						

Thoughts:
**My Thought Process on `struct tcmsg`**

My immediate impulse is to gain a precise understanding of the `tcmsg` structure, as this is the foundational element for interacting with traffic control messages. Therefore, my first step is to locate its definition. I know this type of kernel-facing structure, particularly related to networking and rtnetlink, will be defined within the kernel's public API headers. The prompt explicitly guides me to `include/uapi/linux/rtnetlink.h`, which is precisely where I would expect to find such a definition. My intention is to meticulously examine each field within `struct tcmsg` and note its data type. This granular level of detail is crucial for me as an expert because it informs how I will construct and interpret rtnetlink messages, ensuring correct data packing, alignment, and semantic understanding of the information being conveyed. Without this precise knowledge of the structure's layout, any subsequent manipulation or generation of `tcmsg` instances would be prone to errors and misinterpretations.


767/7 2026/08/15 19:32 tool read-file
0m Args:
map[File:include/uapi/linux/rtnetlink.h FirstLine:615 LineCount:25]

Results:
map[Contents: 615:	struct tcmsg {
 616:		unsigned char	tcm_family;
 617:		unsigned char	tcm__pad1;
 618:		unsigned short	tcm__pad2;
 619:		int		tcm_ifindex;
 620:		__u32		tcm_handle;
 621:		__u32		tcm_parent;
 622:	/* tcm_block_index is used instead of tcm_parent
 623:	 * in case tcm_ifindex == TCM_IFINDEX_MAGIC_BLOCK
 624:	 */
 625:	#define tcm_block_index tcm_parent
 626:		__u32		tcm_info;
 627:	};
 628:	
 629:	/* For manipulation of filters in shared block, tcm_ifindex is set to
 630:	 * TCM_IFINDEX_MAGIC_BLOCK, and tcm_parent is aliased to tcm_block_index
 631:	 * which is the block index.
 632:	 */
 633:	#define TCM_IFINDEX_MAGIC_BLOCK (0xFFFFFFFFU)
 634:	
 635:	enum {
 636:		TCA_UNSPEC,
 637:		TCA_KIND,
 638:		TCA_OPTIONS,
 639:		TCA_STATS,
]

768/7 2026/08/15 19:32 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 27048
							output: 17
							thoughts: 322
						

Thoughts:
**My Deep Dive into Netlink Attribute Construction for RTM_NEWQDISC**

My current focus is on understanding the intricate process of how Netlink messages, specifically those containing Netlink attributes (rtattr or nlattr), are assembled. I'm particularly interested in the helper functions used across various libraries and tools like libbpf, selftests, and iproute2, all in the context of constructing attributes for the `RTM_NEWQDISC` operation.

I need to clarify the roles and differences between `struct rtattr` and `struct nlattr` when dealing with rtnetlink and the TCA_* attribute types. My initial understanding is that attributes appended to `struct tcmsg` can be added using either `struct rtattr` or `struct nlattr`. I recall they both share `type` and `len` fields, but the specific naming conventions are `rta_len`/`rta_type` for `rtattr` and `nla_len`/`nla_type` for `nlattr`.

A key question I'm wrestling with is whether `rtattr` or `nlattr` are the primary structures used for TCA_* attributes. To resolve this, I've decided to consult the kernel's header files. I'll be looking at `include/uapi/linux/rtnetlink.h` for definitions related to these structures and the `RTM_NEWQDISC` context.

Specifically, I've found these relevant definitions in `include/uapi/linux/rtnetlink.h`:

*   `#define TCA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))`
*   `#define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))`

These macros seem to directly involve `struct tcmsg` and `struct rtattr`, suggesting that `rtattr` plays a significant role in how we access and build attributes associated with queueing disciplines.

To further solidify my understanding of `struct rtattr` versus `struct nlattr`, I plan to perform a targeted grep search within `include/uapi/linux/rtnetlink.h` and `include/uapi/linux/netlink.h` for all occurrences of `struct rtattr`. This will help me map out where and how these structures are defined and utilized throughout the Netlink subsystem.


769/7 2026/08/15 19:32 tool grepper
0m Args:
map[Expression:struct rtattr]

Results:
map[Output:
Full output is too long, showing 500 out of 937 lines.
Use more precise expression if possible.

crypto/adiantum.c=555=adiantum_supported_algorithms(struct skcipher_alg_common *streamcipher_alg,
--
crypto/adiantum.c-570-
crypto/adiantum.c:571:static int adiantum_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/adiantum.c-572-{
--
crypto/algapi.c=854=EXPORT_SYMBOL_GPL(crypto_unregister_notifier);
crypto/algapi.c-855-
crypto/algapi.c:856:struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb)
crypto/algapi.c-857-{
crypto/algapi.c:858:	struct rtattr *rta = tb[0];
crypto/algapi.c-859-	struct crypto_attr_type *algt;
--
crypto/algapi.c=872=EXPORT_SYMBOL_GPL(crypto_get_attr_type);
--
crypto/algapi.c-889- */
crypto/algapi.c:890:int crypto_check_attr_type(struct rtattr **tb, u32 type, u32 *mask_ret)
crypto/algapi.c-891-{
--
crypto/algapi.c=904=EXPORT_SYMBOL_GPL(crypto_check_attr_type);
crypto/algapi.c-905-
crypto/algapi.c:906:const char *crypto_attr_alg_name(struct rtattr *rta)
crypto/algapi.c-907-{
--
crypto/algboss.c=23=struct cryptomgr_param {
crypto/algboss.c:24:	struct rtattr *tb[CRYPTO_MAX_ATTRS + 2];
crypto/algboss.c-25-
crypto/algboss.c-26-	struct {
crypto/algboss.c:27:		struct rtattr attr;
crypto/algboss.c-28-		struct crypto_attr_type data;
--
crypto/algboss.c-31-	struct {
crypto/algboss.c:32:		struct rtattr attr;
crypto/algboss.c-33-		struct crypto_attr_alg data;
--
crypto/authenc.c=44=int crypto_authenc_extractkeys(struct crypto_authenc_keys *keys, const u8 *key,
--
crypto/authenc.c-46-{
crypto/authenc.c:47:	struct rtattr *rta = (struct rtattr *)key;
crypto/authenc.c-48-	struct crypto_authenc_key_param *param;
--
crypto/authenc.c=359=static int crypto_authenc_create(struct crypto_template *tmpl,
crypto/authenc.c:360:				 struct rtattr **tb)
crypto/authenc.c-361-{
--
crypto/authencesn.c=365=static int crypto_authenc_esn_create(struct crypto_template *tmpl,
crypto/authencesn.c:366:				     struct rtattr **tb)
crypto/authencesn.c-367-{
--
crypto/cbc.c=122=static int crypto_cbc_decrypt(struct crypto_lskcipher *tfm, const u8 *src,
--
crypto/cbc.c-137-
crypto/cbc.c:138:static int crypto_cbc_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/cbc.c-139-{
--
crypto/ccm.c=442=static int crypto_ccm_create_common(struct crypto_template *tmpl,
crypto/ccm.c:443:				    struct rtattr **tb,
crypto/ccm.c-444-				    const char *ctr_name,
--
crypto/ccm.c-524-
crypto/ccm.c:525:static int crypto_ccm_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/ccm.c-526-{
--
crypto/ccm.c=546=static int crypto_ccm_base_create(struct crypto_template *tmpl,
crypto/ccm.c:547:				  struct rtattr **tb)
crypto/ccm.c-548-{
--
crypto/ccm.c=700=static int crypto_rfc4309_create(struct crypto_template *tmpl,
crypto/ccm.c:701:				 struct rtattr **tb)
crypto/ccm.c-702-{
--
crypto/ccm.c=841=static void cbcmac_exit_tfm(struct crypto_tfm *tfm)
--
crypto/ccm.c-846-
crypto/ccm.c:847:static int cbcmac_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/ccm.c-848-{
--
crypto/chacha20poly1305.c=363=static void chachapoly_free(struct aead_instance *inst)
--
crypto/chacha20poly1305.c-370-
crypto/chacha20poly1305.c:371:static int chachapoly_create(struct crypto_template *tmpl, struct rtattr **tb,
crypto/chacha20poly1305.c-372-			     const char *name, unsigned int ivsize)
--
crypto/chacha20poly1305.c-451-
crypto/chacha20poly1305.c:452:static int rfc7539_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/chacha20poly1305.c-453-{
--
crypto/chacha20poly1305.c-456-
crypto/chacha20poly1305.c:457:static int rfc7539esp_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/chacha20poly1305.c-458-{
--
crypto/cmac.c=154=static void cmac_exit_tfm(struct crypto_shash *tfm)
--
crypto/cmac.c-159-
crypto/cmac.c:160:static int cmac_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/cmac.c-161-{
--
crypto/cryptd.c=379=static int cryptd_create_skcipher(struct crypto_template *tmpl,
crypto/cryptd.c:380:				  struct rtattr **tb,
crypto/cryptd.c-381-				  struct crypto_attr_type *algt,
--
crypto/cryptd.c=642=static void cryptd_hash_free(struct ahash_instance *inst)
--
crypto/cryptd.c-649-
crypto/cryptd.c:650:static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
crypto/cryptd.c-651-			      struct crypto_attr_type *algt,
--
crypto/cryptd.c=857=static int cryptd_create_aead(struct crypto_template *tmpl,
crypto/cryptd.c:858:		              struct rtattr **tb,
crypto/cryptd.c-859-			      struct crypto_attr_type *algt,
--
crypto/cryptd.c=912=static struct cryptd_queue queue;
crypto/cryptd.c-913-
crypto/cryptd.c:914:static int cryptd_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/cryptd.c-915-{
--
crypto/ctr.c=99=static int crypto_ctr_crypt(struct skcipher_request *req)
--
crypto/ctr.c-126-
crypto/ctr.c:127:static int crypto_ctr_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/ctr.c-128-{
--
crypto/ctr.c=257=static int crypto_rfc3686_create(struct crypto_template *tmpl,
crypto/ctr.c:258:				 struct rtattr **tb)
crypto/ctr.c-259-{
--
crypto/cts.c=318=static void crypto_cts_free(struct skcipher_instance *inst)
--
crypto/cts.c-323-
crypto/cts.c:324:static int crypto_cts_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/cts.c-325-{
--
crypto/dh.c=545=static int __maybe_unused __dh_safe_prime_create(
crypto/dh.c:546:	struct crypto_template *tmpl, struct rtattr **tb,
crypto/dh.c-547-	const struct dh_safe_prime *safe_prime)
--
crypto/dh.c=827=static int dh_ffdhe2048_create(struct crypto_template *tmpl,
crypto/dh.c:828:			       struct rtattr **tb)
crypto/dh.c-829-{
--
crypto/dh.c=833=static int dh_ffdhe3072_create(struct crypto_template *tmpl,
crypto/dh.c:834:			       struct rtattr **tb)
crypto/dh.c-835-{
--
crypto/dh.c=839=static int dh_ffdhe4096_create(struct crypto_template *tmpl,
crypto/dh.c:840:			       struct rtattr **tb)
crypto/dh.c-841-{
--
crypto/dh.c=845=static int dh_ffdhe6144_create(struct crypto_template *tmpl,
crypto/dh.c:846:			       struct rtattr **tb)
crypto/dh.c-847-{
--
crypto/dh.c=851=static int dh_ffdhe8192_create(struct crypto_template *tmpl,
crypto/dh.c:852:			       struct rtattr **tb)
crypto/dh.c-853-{
--
crypto/ecb.c=97=static struct lskcipher_instance *lskcipher_alloc_instance_simple2(
crypto/ecb.c:98:	struct crypto_template *tmpl, struct rtattr **tb)
crypto/ecb.c-99-{
--
crypto/ecb.c-148-
crypto/ecb.c:149:static int crypto_ecb_create2(struct crypto_template *tmpl, struct rtattr **tb)
crypto/ecb.c-150-{
--
crypto/ecb.c-170-
crypto/ecb.c:171:static int crypto_ecb_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/ecb.c-172-{
--
crypto/ecdsa-p1363.c=91=static void ecdsa_p1363_free(struct sig_instance *inst)
--
crypto/ecdsa-p1363.c-98-
crypto/ecdsa-p1363.c:99:static int ecdsa_p1363_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/ecdsa-p1363.c-100-{
--
crypto/ecdsa-x962.c=168=static void ecdsa_x962_free(struct sig_instance *inst)
--
crypto/ecdsa-x962.c-175-
crypto/ecdsa-x962.c:176:static int ecdsa_x962_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/ecdsa-x962.c-177-{
--
crypto/echainiv.c=100=static int echainiv_aead_create(struct crypto_template *tmpl,
crypto/echainiv.c:101:				struct rtattr **tb)
crypto/echainiv.c-102-{
--
crypto/essiv.c=410=static bool essiv_supported_algorithms(const char *essiv_cipher_name,
--
crypto/essiv.c-439-
crypto/essiv.c:440:static int essiv_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/essiv.c-441-{
--
crypto/gcm.c=333=static int crypto_gcm_create_common(struct crypto_template *tmpl,
crypto/gcm.c:334:				    struct rtattr **tb, const char *ctr_name)
crypto/gcm.c-335-{
--
crypto/gcm.c-396-
crypto/gcm.c:397:static int crypto_gcm_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/gcm.c-398-{
--
crypto/gcm.c=413=static int crypto_gcm_base_create(struct crypto_template *tmpl,
crypto/gcm.c:414:				  struct rtattr **tb)
crypto/gcm.c-415-{
--
crypto/gcm.c=575=static int crypto_rfc4106_create(struct crypto_template *tmpl,
crypto/gcm.c:576:				 struct rtattr **tb)
crypto/gcm.c-577-{
--
crypto/gcm.c=761=static int crypto_rfc4543_create(struct crypto_template *tmpl,
crypto/gcm.c:762:				struct rtattr **tb)
crypto/gcm.c-763-{
--
crypto/geniv.c=40=struct aead_instance *aead_geniv_alloc(struct crypto_template *tmpl,
crypto/geniv.c:41:				       struct rtattr **tb)
crypto/geniv.c-42-{
--
crypto/hctr2.c=316=static void hctr2_free_instance(struct skcipher_instance *inst)
--
crypto/hctr2.c-324-
crypto/hctr2.c:325:static int hctr2_create_common(struct crypto_template *tmpl, struct rtattr **tb,
crypto/hctr2.c-326-			       const char *xctr_name)
--
crypto/hctr2.c-414-
crypto/hctr2.c:415:static int hctr2_create_base(struct crypto_template *tmpl, struct rtattr **tb)
crypto/hctr2.c-416-{
--
crypto/hctr2.c-433-
crypto/hctr2.c:434:static int hctr2_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/hctr2.c-435-{
--
crypto/hmac.c=168=static int __hmac_create_shash(struct crypto_template *tmpl,
crypto/hmac.c:169:			       struct rtattr **tb, u32 mask)
crypto/hmac.c-170-{
--
crypto/hmac.c=411=static void hmac_exit_ahash_tfm(struct crypto_ahash *parent)
--
crypto/hmac.c-417-
crypto/hmac.c:418:static int hmac_create_ahash(struct crypto_template *tmpl, struct rtattr **tb,
crypto/hmac.c-419-			     u32 mask)
--
crypto/hmac.c-487-
crypto/hmac.c:488:static int hmac_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/hmac.c-489-{
--
crypto/hmac.c-509-
crypto/hmac.c:510:static int hmac_create_shash(struct crypto_template *tmpl, struct rtattr **tb)
crypto/hmac.c-511-{
--
crypto/krb5/rfc3961_simplified.c=432=int authenc_derive_encrypt_keys(const struct krb5_enctype *krb5,
--
crypto/krb5/rfc3961_simplified.c-439-	struct krb5_buffer Ke, Ki;
crypto/krb5/rfc3961_simplified.c:440:	struct rtattr *rta;
crypto/krb5/rfc3961_simplified.c-441-	int ret;
--
crypto/krb5/rfc3961_simplified.c=474=int authenc_load_encrypt_keys(const struct krb5_enctype *krb5,
--
crypto/krb5/rfc3961_simplified.c-480-	struct crypto_authenc_key_param *param;
crypto/krb5/rfc3961_simplified.c:481:	struct rtattr *rta;
crypto/krb5/rfc3961_simplified.c-482-
--
crypto/krb5enc.c=56=int crypto_krb5enc_extractkeys(struct crypto_authenc_keys *keys, const u8 *key,
--
crypto/krb5enc.c-58-{
crypto/krb5enc.c:59:	struct rtattr *rta = (struct rtattr *)key;
crypto/krb5enc.c-60-	struct crypto_authenc_key_param *param;
--
crypto/krb5enc.c=398=static void krb5enc_free(struct aead_instance *inst)
--
crypto/krb5enc.c-409- */
crypto/krb5enc.c:410:static int krb5enc_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/krb5enc.c-411-{
--
crypto/lrw.c=293=static void lrw_free_instance(struct skcipher_instance *inst)
--
crypto/lrw.c-298-
crypto/lrw.c:299:static int lrw_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/lrw.c-300-{
--
crypto/lskcipher.c=477=struct lskcipher_instance *lskcipher_alloc_instance_simple(
crypto/lskcipher.c:478:	struct crypto_template *tmpl, struct rtattr **tb)
crypto/lskcipher.c-479-{
--
crypto/pcrypt.c=228=static int pcrypt_init_instance(struct crypto_instance *inst,
--
crypto/pcrypt.c-243-
crypto/pcrypt.c:244:static int pcrypt_create_aead(struct crypto_template *tmpl, struct rtattr **tb,
crypto/pcrypt.c-245-			      struct crypto_attr_type *algt)
--
crypto/pcrypt.c-302-
crypto/pcrypt.c:303:static int pcrypt_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/pcrypt.c-304-{
--
crypto/rsa-pkcs1pad.c=301=static void pkcs1pad_free(struct akcipher_instance *inst)
--
crypto/rsa-pkcs1pad.c-309-
crypto/rsa-pkcs1pad.c:310:static int pkcs1pad_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/rsa-pkcs1pad.c-311-{
--
crypto/rsassa-pkcs1.c=346=static void rsassa_pkcs1_free(struct sig_instance *inst)
--
crypto/rsassa-pkcs1.c-354-
crypto/rsassa-pkcs1.c:355:static int rsassa_pkcs1_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/rsassa-pkcs1.c-356-{
--
crypto/seqiv.c=99=static int seqiv_aead_decrypt(struct aead_request *req)
--
crypto/seqiv.c-125-
crypto/seqiv.c:126:static int seqiv_aead_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/seqiv.c-127-{
--
crypto/skcipher.c=831=struct skcipher_instance *skcipher_alloc_instance_simple(
crypto/skcipher.c:832:	struct crypto_template *tmpl, struct rtattr **tb)
crypto/skcipher.c-833-{
--
crypto/xcbc.c=121=static void xcbc_exit_tfm(struct crypto_tfm *tfm)
--
crypto/xcbc.c-126-
crypto/xcbc.c:127:static int xcbc_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/xcbc.c-128-{
--
crypto/xctr.c=100=static int crypto_xctr_crypt(struct skcipher_request *req)
--
crypto/xctr.c-130-
crypto/xctr.c:131:static int crypto_xctr_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/xctr.c-132-{
--
crypto/xts.c=331=static void xts_free_instance(struct skcipher_instance *inst)
--
crypto/xts.c-339-
crypto/xts.c:340:static int xts_create(struct crypto_template *tmpl, struct rtattr **tb)
crypto/xts.c-341-{
--
drivers/md/dm-crypt.c-41-#include <crypto/utils.h>
drivers/md/dm-crypt.c:42:#include <linux/rtnetlink.h> /* for struct rtattr and RTA macros only */
drivers/md/dm-crypt.c-43-#include <linux/key-type.h>
--
drivers/md/dm-crypt.c=2371=static void crypt_copy_authenckey(char *p, const void *key,
--
drivers/md/dm-crypt.c-2374-	struct crypto_authenc_key_param *param;
drivers/md/dm-crypt.c:2375:	struct rtattr *rta;
drivers/md/dm-crypt.c-2376-
drivers/md/dm-crypt.c:2377:	rta = (struct rtattr *)p;
drivers/md/dm-crypt.c-2378-	param = RTA_DATA(rta);
--
include/crypto/algapi.h=52=struct notifier_block;
include/crypto/algapi.h:53:struct rtattr;
include/crypto/algapi.h-54-struct scatterlist;
--
include/crypto/algapi.h=74=struct crypto_template {
--
include/crypto/algapi.h-81-
include/crypto/algapi.h:82:	int (*create)(struct crypto_template *tmpl, struct rtattr **tb);
include/crypto/algapi.h-83-
--
include/crypto/algapi.h=156=void *crypto_spawn_tfm2(struct crypto_spawn *spawn);
include/crypto/algapi.h-157-
include/crypto/algapi.h:158:struct crypto_attr_type *crypto_get_attr_type(struct rtattr **tb);
include/crypto/algapi.h:159:int crypto_check_attr_type(struct rtattr **tb, u32 type, u32 *mask_ret);
include/crypto/algapi.h:160:const char *crypto_attr_alg_name(struct rtattr *rta);
include/crypto/algapi.h-161-int __crypto_inst_setname(struct crypto_instance *inst, const char *name,
--
include/crypto/internal/aead.h-15-
include/crypto/internal/aead.h:16:struct rtattr;
include/crypto/internal/aead.h-17-
--
include/crypto/internal/geniv.h=19=struct aead_instance *aead_geniv_alloc(struct crypto_template *tmpl,
include/crypto/internal/geniv.h:20:				       struct rtattr **tb);
include/crypto/internal/geniv.h-21-int aead_init_geniv(struct crypto_aead *tfm);
--
include/crypto/internal/skcipher.h=24=struct aead_request;
include/crypto/internal/skcipher.h:25:struct rtattr;
include/crypto/internal/skcipher.h-26-
--
include/crypto/internal/skcipher.h=284=struct skcipher_instance *skcipher_alloc_instance_simple(
include/crypto/internal/skcipher.h:285:	struct crypto_template *tmpl, struct rtattr **tb);
include/crypto/internal/skcipher.h-286-
--
include/crypto/internal/skcipher.h=303=struct lskcipher_instance *lskcipher_alloc_instance_simple(
include/crypto/internal/skcipher.h:304:	struct crypto_template *tmpl, struct rtattr **tb);
include/crypto/internal/skcipher.h-305-
--
include/uapi/linux/if_addr.h=60=struct ifa_cacheinfo {
--
include/uapi/linux/if_addr.h-68-#ifndef __KERNEL__
include/uapi/linux/if_addr.h:69:#define IFA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
include/uapi/linux/if_addr.h-70-#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg))
--
include/uapi/linux/if_link.h=390=enum {
--
include/uapi/linux/if_link.h-400-#ifndef __KERNEL__
include/uapi/linux/if_link.h:401:#define IFLA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
include/uapi/linux/if_link.h-402-#define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg))
--
include/uapi/linux/rtnetlink.h=24=enum {
--
include/uapi/linux/rtnetlink.h-218-
include/uapi/linux/rtnetlink.h:219:struct rtattr {
include/uapi/linux/rtnetlink.h-220-	unsigned short	rta_len;
--
include/uapi/linux/rtnetlink.h-227-#define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
include/uapi/linux/rtnetlink.h:228:#define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
include/uapi/linux/rtnetlink.h:229:			 (rta)->rta_len >= sizeof(struct rtattr) && \
include/uapi/linux/rtnetlink.h-230-			 (rta)->rta_len <= (len))
include/uapi/linux/rtnetlink.h-231-#define RTA_NEXT(rta,attrlen)	((attrlen) -= RTA_ALIGN((rta)->rta_len), \
include/uapi/linux/rtnetlink.h:232:				 (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len)))
include/uapi/linux/rtnetlink.h:233:#define RTA_LENGTH(len)	(RTA_ALIGN(sizeof(struct rtattr)) + (len))
include/uapi/linux/rtnetlink.h-234-#define RTA_SPACE(len)	RTA_ALIGN(RTA_LENGTH(len))
--
include/uapi/linux/rtnetlink.h=369=enum rtattr_type_t {
--
include/uapi/linux/rtnetlink.h-406-
include/uapi/linux/rtnetlink.h:407:#define RTM_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
include/uapi/linux/rtnetlink.h-408-#define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))
--
include/uapi/linux/rtnetlink.h=419=struct rtnexthop {
--
include/uapi/linux/rtnetlink.h-447-#define RTNH_SPACE(len)	RTNH_ALIGN(RTNH_LENGTH(len))
include/uapi/linux/rtnetlink.h:448:#define RTNH_DATA(rtnh)   ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0)))
include/uapi/linux/rtnetlink.h-449-
--
include/uapi/linux/rtnetlink.h=458=struct rta_cacheinfo {
--
include/uapi/linux/rtnetlink.h-470-
include/uapi/linux/rtnetlink.h:471:/* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
include/uapi/linux/rtnetlink.h-472-
--
include/uapi/linux/rtnetlink.h=635=enum {
--
include/uapi/linux/rtnetlink.h-662-
include/uapi/linux/rtnetlink.h:663:#define TCA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
include/uapi/linux/rtnetlink.h-664-#define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
--
include/uapi/linux/rtnetlink.h=804=enum {
--
include/uapi/linux/rtnetlink.h-816-
include/uapi/linux/rtnetlink.h:817:#define TA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg))))
include/uapi/linux/rtnetlink.h-818-#define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
--
net/ipv4/esp4.c=1017=static int esp_init_authenc(struct xfrm_state *x,
--
net/ipv4/esp4.c-1021-	struct crypto_authenc_key_param *param;
net/ipv4/esp4.c:1022:	struct rtattr *rta;
net/ipv4/esp4.c-1023-	char *key;
--
net/ipv6/esp6.c=1054=static int esp_init_authenc(struct xfrm_state *x,
--
net/ipv6/esp6.c-1058-	struct crypto_authenc_key_param *param;
net/ipv6/esp6.c:1059:	struct rtattr *rta;
net/ipv6/esp6.c-1060-	char *key;
--
samples/bpf/xdp_router_ipv4_user.c=91=static void read_route(struct nlmsghdr *nh, int nll)
--
samples/bpf/xdp_router_ipv4_user.c-94-	struct bpf_lpm_trie_key_u8 *prefix_key;
samples/bpf/xdp_router_ipv4_user.c:95:	struct rtattr *rt_attr;
samples/bpf/xdp_router_ipv4_user.c-96-	struct rtmsg *rt_msg;
--
samples/bpf/xdp_router_ipv4_user.c-122-				continue;
samples/bpf/xdp_router_ipv4_user.c:123:		rt_attr = (struct rtattr *)RTM_RTA(rt_msg);
samples/bpf/xdp_router_ipv4_user.c-124-		rtl = RTM_PAYLOAD(nh);
--
samples/bpf/xdp_router_ipv4_user.c=316=static void read_arp(struct nlmsghdr *nh, int nll)
samples/bpf/xdp_router_ipv4_user.c-317-{
samples/bpf/xdp_router_ipv4_user.c:318:	struct rtattr *rt_attr;
samples/bpf/xdp_router_ipv4_user.c-319-	char dsts[24], mac[24];
--
samples/bpf/xdp_router_ipv4_user.c-334-		rt_msg = (struct ndmsg *)NLMSG_DATA(nh);
samples/bpf/xdp_router_ipv4_user.c:335:		rt_attr = (struct rtattr *)RTM_RTA(rt_msg);
samples/bpf/xdp_router_ipv4_user.c-336-		ndm_family = rt_msg->ndm_family;
--
tools/include/uapi/linux/if_addr.h=60=struct ifa_cacheinfo {
--
tools/include/uapi/linux/if_addr.h-68-#ifndef __KERNEL__
tools/include/uapi/linux/if_addr.h:69:#define IFA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
tools/include/uapi/linux/if_addr.h-70-#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg))
--
tools/include/uapi/linux/if_link.h=387=enum {
--
tools/include/uapi/linux/if_link.h-397-#ifndef __KERNEL__
tools/include/uapi/linux/if_link.h:398:#define IFLA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
tools/include/uapi/linux/if_link.h-399-#define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg))
--
tools/include/uapi/linux/rtnetlink.h=24=enum {
--
tools/include/uapi/linux/rtnetlink.h-218-
tools/include/uapi/linux/rtnetlink.h:219:struct rtattr {
tools/include/uapi/linux/rtnetlink.h-220-	unsigned short	rta_len;
--
tools/include/uapi/linux/rtnetlink.h-227-#define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
tools/include/uapi/linux/rtnetlink.h:228:#define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
tools/include/uapi/linux/rtnetlink.h:229:			 (rta)->rta_len >= sizeof(struct rtattr) && \
tools/include/uapi/linux/rtnetlink.h-230-			 (rta)->rta_len <= (len))
tools/include/uapi/linux/rtnetlink.h-231-#define RTA_NEXT(rta,attrlen)	((attrlen) -= RTA_ALIGN((rta)->rta_len), \
tools/include/uapi/linux/rtnetlink.h:232:				 (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len)))
tools/include/uapi/linux/rtnetlink.h:233:#define RTA_LENGTH(len)	(RTA_ALIGN(sizeof(struct rtattr)) + (len))
tools/include/uapi/linux/rtnetlink.h-234-#define RTA_SPACE(len)	RTA_ALIGN(RTA_LENGTH(len))
--
tools/include/uapi/linux/rtnetlink.h=369=enum rtattr_type_t {
--
tools/include/uapi/linux/rtnetlink.h-406-
tools/include/uapi/linux/rtnetlink.h:407:#define RTM_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
tools/include/uapi/linux/rtnetlink.h-408-#define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))
--

]

770/7 2026/08/15 19:32 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 36773
							output: 26
							thoughts: 216
						

Thoughts:
**My Thought Process Regarding rtattr Macros and Netlink Attribute Handling**

As I delve into the intricacies of network attribute handling, specifically within the context of rtnetlink and tc (traffic control) messages, my initial focus naturally gravitates towards the provided `struct rtattr` macros. I immediately begin to dissect them, trying to understand their purpose and how they contribute to the overall message construction.

First, I examine `RTA_ALIGN(len)`. The definition, `(((len) + RTA_ALIGNTO - 1) & ~(RTA_ALIGNTO - 1))` with `RTA_ALIGNTO` set to 4, clearly indicates a byte alignment operation. This is a standard technique to ensure that subsequent data structures or attributes begin at an address that's a multiple of 4 bytes, which is crucial for performance and sometimes for correctness on various architectures. I recognize this as padding to the nearest 4-byte boundary.

Next, I look at `RTA_LENGTH(len)`. This macro, defined as `(RTA_ALIGN(sizeof(struct rtattr)) + (len))`, appears to calculate the total length required for an attribute. It starts by aligning the size of the `struct rtattr` itself (which is the header for a netlink attribute) and then adds the length of the actual data (`len`) that will follow the header. This tells me that each attribute will have a fixed header size (after alignment) plus a variable data payload.

Following that, `RTA_SPACE(len)` is defined as `RTA_ALIGN(RTA_LENGTH(len))`. This macro seems to calculate the *total* space needed for an attribute, including its header and data, and then ensures that *this entire block* is also 4-byte aligned. This is likely to ensure that if multiple attributes are appended sequentially within a netlink message, each attribute's boundary is also aligned, maintaining the overall message structure integrity.

Finally, `RTA_DATA(rta)` is defined as `((void*)(((char*)(rta)) + RTA_LENGTH(0)))`. This macro is designed to extract a pointer to the *data portion* of an `rtattr`. It takes a pointer to the `struct rtattr` (`rta`) and adds the length calculated by `RTA_LENGTH(0)`. The `RTA_LENGTH(0)` effectively calculates the aligned size of just the `struct rtattr` header, meaning this macro effectively skips over the header to point to where the attribute's payload begins.

However, as I process these macros, a critical question arises in my mind. While these macros define *how* an attribute's length and data are managed at a structural level, they don't tell me how user-space programs *actually construct* these netlink messages. I begin to wonder: am I expected to manually manipulate raw buffers using these macros, or are there higher-level, more convenient helper functions available for building netlink attributes for rtnetlink and tc?

This leads me to the crucial next step in my thought process: seeking practical examples. I decide I need to look for helper functions like `addattr_l` or `addattr32` (or similar). My intuition tells me that common utilities within the `tools/` directory, or perhaps examples in `samples/` or even within the `selftests/` suite, would demonstrate the idiomatic way to add attributes to netlink messages. This is essential because directly formatting buffers can be error-prone, and using well-established helper functions will likely lead to more robust and maintainable code. My goal is to understand the *user-facing API* for attribute construction, not just the underlying data layout.


771/7 2026/08/15 19:32 tool grepper
0m Args:
map[Expression:addattr_l PathPrefix:tools/]

Results:
map[Output:tools/testing/selftests/bpf/netlink_helpers.c=282=int addattr(struct nlmsghdr *n, int maxlen, int type)
tools/testing/selftests/bpf/netlink_helpers.c-283-{
tools/testing/selftests/bpf/netlink_helpers.c:284:	return addattr_l(n, maxlen, type, NULL, 0);
tools/testing/selftests/bpf/netlink_helpers.c-285-}
--
tools/testing/selftests/bpf/netlink_helpers.c=287=int addattr8(struct nlmsghdr *n, int maxlen, int type, __u8 data)
tools/testing/selftests/bpf/netlink_helpers.c-288-{
tools/testing/selftests/bpf/netlink_helpers.c:289:	return addattr_l(n, maxlen, type, &data, sizeof(__u8));
tools/testing/selftests/bpf/netlink_helpers.c-290-}
--
tools/testing/selftests/bpf/netlink_helpers.c=292=int addattr16(struct nlmsghdr *n, int maxlen, int type, __u16 data)
tools/testing/selftests/bpf/netlink_helpers.c-293-{
tools/testing/selftests/bpf/netlink_helpers.c:294:	return addattr_l(n, maxlen, type, &data, sizeof(__u16));
tools/testing/selftests/bpf/netlink_helpers.c-295-}
--
tools/testing/selftests/bpf/netlink_helpers.c=297=int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data)
tools/testing/selftests/bpf/netlink_helpers.c-298-{
tools/testing/selftests/bpf/netlink_helpers.c:299:	return addattr_l(n, maxlen, type, &data, sizeof(__u32));
tools/testing/selftests/bpf/netlink_helpers.c-300-}
--
tools/testing/selftests/bpf/netlink_helpers.c=302=int addattr64(struct nlmsghdr *n, int maxlen, int type, __u64 data)
tools/testing/selftests/bpf/netlink_helpers.c-303-{
tools/testing/selftests/bpf/netlink_helpers.c:304:	return addattr_l(n, maxlen, type, &data, sizeof(__u64));
tools/testing/selftests/bpf/netlink_helpers.c-305-}
--
tools/testing/selftests/bpf/netlink_helpers.c=307=int addattrstrz(struct nlmsghdr *n, int maxlen, int type, const char *str)
tools/testing/selftests/bpf/netlink_helpers.c-308-{
tools/testing/selftests/bpf/netlink_helpers.c:309:	return addattr_l(n, maxlen, type, str, strlen(str)+1);
tools/testing/selftests/bpf/netlink_helpers.c-310-}
tools/testing/selftests/bpf/netlink_helpers.c-311-
tools/testing/selftests/bpf/netlink_helpers.c:312:int addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data,
tools/testing/selftests/bpf/netlink_helpers.c-313-	      int alen)
--
tools/testing/selftests/bpf/netlink_helpers.c=346=struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type)
--
tools/testing/selftests/bpf/netlink_helpers.c-349-
tools/testing/selftests/bpf/netlink_helpers.c:350:	addattr_l(n, maxlen, type, NULL, 0);
tools/testing/selftests/bpf/netlink_helpers.c-351-	return nest;
--
tools/testing/selftests/bpf/netlink_helpers.h=41=int addattrstrz(struct nlmsghdr *n, int maxlen, int type, const char *data);
tools/testing/selftests/bpf/netlink_helpers.h:42:int addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen);
tools/testing/selftests/bpf/netlink_helpers.h-43-int addraw_l(struct nlmsghdr *n, int maxlen, const void *data, int len);
--
tools/testing/selftests/bpf/prog_tests/tc_links.c=1798=static int qdisc_replace(int ifindex, const char *kind, bool block)
--
tools/testing/selftests/bpf/prog_tests/tc_links.c-1815-
tools/testing/selftests/bpf/prog_tests/tc_links.c:1816:	addattr_l(&req.n, sizeof(req), TCA_KIND, kind, strlen(kind) + 1);
tools/testing/selftests/bpf/prog_tests/tc_links.c-1817-	if (block)
--
tools/testing/selftests/bpf/prog_tests/tc_netkit.c=43=static int create_netkit(int mode, int policy, int peer_policy, int *ifindex,
--
tools/testing/selftests/bpf/prog_tests/tc_netkit.c-61-
tools/testing/selftests/bpf/prog_tests/tc_netkit.c:62:	addattr_l(&req.n, sizeof(req), IFLA_IFNAME, netkit_name,
tools/testing/selftests/bpf/prog_tests/tc_netkit.c-63-		  strlen(netkit_name));
tools/testing/selftests/bpf/prog_tests/tc_netkit.c-64-	linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
tools/testing/selftests/bpf/prog_tests/tc_netkit.c:65:	addattr_l(&req.n, sizeof(req), IFLA_INFO_KIND, type, strlen(type));
tools/testing/selftests/bpf/prog_tests/tc_netkit.c-66-	data = addattr_nest(&req.n, sizeof(req), IFLA_INFO_DATA);
--
tools/testing/selftests/bpf/prog_tests/tc_redirect.c=164=static int create_netkit(int mode, char *prim, char *peer)
--
tools/testing/selftests/bpf/prog_tests/tc_redirect.c-185-
tools/testing/selftests/bpf/prog_tests/tc_redirect.c:186:	addattr_l(&req.n, sizeof(req), IFLA_IFNAME, prim, strlen(prim));
tools/testing/selftests/bpf/prog_tests/tc_redirect.c-187-	linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
tools/testing/selftests/bpf/prog_tests/tc_redirect.c:188:	addattr_l(&req.n, sizeof(req), IFLA_INFO_KIND, type, strlen(type));
tools/testing/selftests/bpf/prog_tests/tc_redirect.c-189-	data = addattr_nest(&req.n, sizeof(req), IFLA_INFO_DATA);
--
tools/testing/selftests/bpf/prog_tests/tc_redirect.c-192-	req.n.nlmsg_len += sizeof(struct ifinfomsg);
tools/testing/selftests/bpf/prog_tests/tc_redirect.c:193:	addattr_l(&req.n, sizeof(req), IFLA_IFNAME, peer, strlen(peer));
tools/testing/selftests/bpf/prog_tests/tc_redirect.c-194-	addattr_nest_end(&req.n, peer_info);
]

772/7 2026/08/15 19:32 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 39156
							output: 45
							thoughts: 63
						

Thoughts:
**My Thought Process Regarding `addattr_l` Implementation**

My attention has been drawn to the implementation of the `addattr_l` function, a crucial helper within our BPF testing framework. To fully grasp its mechanics and ensure its robust application, I've decided to delve into the source code. Specifically, I'm examining `tools/testing/selftests/bpf/netlink_helpers.c`, and I'm focusing my investigation around line 312, where I anticipate finding the core logic for this function. My goal is to understand precisely how `addattr_l` constructs Netlink attributes, likely involving the careful management of attribute headers and their associated data payloads, to facilitate seamless communication within the BPF subsystem during testing.


773/7 2026/08/15 19:32 tool read-file
0m Args:
map[File:tools/testing/selftests/bpf/netlink_helpers.c FirstLine:310 LineCount:50]

Results:
map[Contents: 310:	}
 311:	
 312:	int addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data,
 313:		      int alen)
 314:	{
 315:		int len = RTA_LENGTH(alen);
 316:		struct rtattr *rta;
 317:	
 318:		if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
 319:			fprintf(stderr, "%s: Message exceeded bound of %d\n",
 320:				__func__, maxlen);
 321:			return -1;
 322:		}
 323:		rta = NLMSG_TAIL(n);
 324:		rta->rta_type = type;
 325:		rta->rta_len = len;
 326:		if (alen)
 327:			memcpy(RTA_DATA(rta), data, alen);
 328:		n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
 329:		return 0;
 330:	}
 331:	
 332:	int addraw_l(struct nlmsghdr *n, int maxlen, const void *data, int len)
 333:	{
 334:		if (NLMSG_ALIGN(n->nlmsg_len) + NLMSG_ALIGN(len) > maxlen) {
 335:			fprintf(stderr, "%s: Message exceeded bound of %d\n",
 336:				__func__, maxlen);
 337:			return -1;
 338:		}
 339:	
 340:		memcpy(NLMSG_TAIL(n), data, len);
 341:		memset((void *) NLMSG_TAIL(n) + len, 0, NLMSG_ALIGN(len) - len);
 342:		n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + NLMSG_ALIGN(len);
 343:		return 0;
 344:	}
 345:	
 346:	struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type)
 347:	{
 348:		struct rtattr *nest = NLMSG_TAIL(n);
 349:	
 350:		addattr_l(n, maxlen, type, NULL, 0);
 351:		return nest;
 352:	}
 353:	
 354:	int addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest)
 355:	{
 356:		nest->rta_len = (void *)NLMSG_TAIL(n) - (void *)nest;
 357:		return n->nlmsg_len;
 358:	}
]

774/7 2026/08/15 19:32 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 40051
							output: 43
							thoughts: 73
						

Thoughts:
**My Thought Process on `NLMSG_TAIL`**

Okay, this whole thing with `NLMSG_TAIL` is proving to be remarkably straightforward. My initial reaction is one of relief, honestly. It seems to be a very standard and predictable element. To solidify this, my immediate next step is to dive into the specifics. I need to locate the definition of `NLMSG_TAIL`. I'll be looking for it either within `netlink_helpers.c` itself, or more broadly in the standard Netlink headers if it's a more general definition. My plan is to specifically examine the first hundred lines or so of `tools/testing/selftests/bpf/netlink_helpers.c` or the corresponding `netlink_helpers.h` header file. This focused approach should quickly confirm my understanding and reveal the precise implementation or usage of `NLMSG_TAIL` in this context.


775/7 2026/08/15 19:32 tool read-file
0m Args:
map[File:tools/testing/selftests/bpf/netlink_helpers.h FirstLine:1 LineCount:60]

Results:
map[Contents:   1:	/* SPDX-License-Identifier: GPL-2.0-or-later */
   2:	#ifndef NETLINK_HELPERS_H
   3:	#define NETLINK_HELPERS_H
   4:	
   5:	#include <string.h>
   6:	#include <linux/netlink.h>
   7:	#include <linux/rtnetlink.h>
   8:	
   9:	struct rtnl_handle {
  10:		int			fd;
  11:		struct sockaddr_nl	local;
  12:		struct sockaddr_nl	peer;
  13:		__u32			seq;
  14:		__u32			dump;
  15:		int			proto;
  16:		FILE			*dump_fp;
  17:	#define RTNL_HANDLE_F_LISTEN_ALL_NSID		0x01
  18:	#define RTNL_HANDLE_F_SUPPRESS_NLERR		0x02
  19:	#define RTNL_HANDLE_F_STRICT_CHK		0x04
  20:		int			flags;
  21:	};
  22:	
  23:	#define NLMSG_TAIL(nmsg) \
  24:		((struct rtattr *) (((void *) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len)))
  25:	
  26:	typedef int (*nl_ext_ack_fn_t)(const char *errmsg, uint32_t off,
  27:				       const struct nlmsghdr *inner_nlh);
  28:	
  29:	int rtnl_open(struct rtnl_handle *rth, unsigned int subscriptions)
  30:		      __attribute__((warn_unused_result));
  31:	void rtnl_close(struct rtnl_handle *rth);
  32:	int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n,
  33:		      struct nlmsghdr **answer)
  34:		      __attribute__((warn_unused_result));
  35:	
  36:	int addattr(struct nlmsghdr *n, int maxlen, int type);
  37:	int addattr8(struct nlmsghdr *n, int maxlen, int type, __u8 data);
  38:	int addattr16(struct nlmsghdr *n, int maxlen, int type, __u16 data);
  39:	int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data);
  40:	int addattr64(struct nlmsghdr *n, int maxlen, int type, __u64 data);
  41:	int addattrstrz(struct nlmsghdr *n, int maxlen, int type, const char *data);
  42:	int addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen);
  43:	int addraw_l(struct nlmsghdr *n, int maxlen, const void *data, int len);
  44:	struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type);
  45:	int addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest);
  46:	#endif /* NETLINK_HELPERS_H */
]

776/7 2026/08/15 19:32 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 41033
							output: 29
							thoughts: 618
						

Thoughts:
**My Thought Process on Analyzing the `add_qdisc` Function and Netlink RTNETLINK Structure**

Alright, so the core task here is to understand what this `add_qdisc` function is supposed to achieve and how it maps to the underlying Netlink RTNETLINK messages used for traffic control. I need to break down each parameter, consider its type and meaning, and then think about how it will translate into the structure of a Netlink message.

First, let's look at the function prototype itself:
`int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len)`

Now, I'll go through each parameter, making sure I understand its role and type:

1.  `int fd`: This is straightforward. It's the file descriptor for the Netlink socket. The caller is expected to have already set this up, or the function itself might use it to send messages. It's the communication channel.

2.  `int ifindex`: This is the network interface index. It tells me *where* this new queueing discipline (qdisc) needs to be attached or added. Pretty standard for network operations.

3.  `uint32_t parent`: This is a crucial one for the hierarchy. It represents the parent qdisc's handle. I know that `TC_H_ROOT` (which is `0xFFFFFFFFU`) signifies the root of the qdisc tree for a given interface. I also recognize `TC_H_INGRESS` (`0xFFFFFFF1U`) as a special parent for ingress traffic shaping. And then there are the more specific major/minor handles, like `0x00010000`. This parameter defines the structural placement of the new qdisc.

4.  `uint32_t handle`: This is the identifier for the qdisc *I'm creating*. It's often represented in a major:minor format, like `1:0`, and can be provided explicitly (e.g., `0x00010000`). Alternatively, I can pass `0` if I want the kernel to assign a handle automatically.

5.  `const char *kind`: This is the algorithm name. This is essential. Things like `"fq_codel"`, `"prio"`, `"htb"`, `"ingress"`, or `"clsact"` – these define the behavior of the qdisc. If this is provided (i.e., not `NULL`), I'm definitely going to need to include a `TCA_KIND` attribute in the Netlink message. The question is, what exactly does the kernel expect for `TCA_KIND`? Is it just the string, or does it need a null terminator? And how is that handled internally by Netlink?

6.  `void *opt`: This is a pointer to the specific options or configuration data for the chosen `kind` of qdisc. If there are no options, this will be `NULL`.

7.  `int opt_len`: This is the size of the `opt` buffer. If `opt` is not `NULL` and `opt_len` is greater than zero, it means I need to include the qdisc's options under the `TCA_OPTIONS` attribute in the Netlink message.

Okay, so that covers the function parameters. But then I have to remember the *structure* of a Netlink RTNETLINK message for traffic control. It's not just a flat set of parameters. There's a specific hierarchy:

1.  **`struct nlmsghdr nlh`**: The standard Netlink message header. This contains general information about the message itself, like its type, flags, and length.
2.  **`struct tcmsg tcm`**: This is the traffic control-specific header. It contains information like the protocol (`family`), the interface index (`ifindex`), the parent qdisc (`tcm_parent`), and the handle (`tcm_handle`). This seems to map directly to some of the parameters I just analyzed.
3.  **Attributes**: Following the `tcmsg` header, I'll have a series of Netlink attributes (`struct nlattr`). These are key-value pairs that provide more detailed information. Based on my parameter analysis, I'm anticipating at least two:
    *   **`TCA_KIND`**: This will hold the `kind` string. Now, *this* is where I need to be careful. How does `TCA_KIND` get parsed in the kernel? Does `nla_get_string` expect just the string, or does it need the null terminator implicitly handled by the attribute length? Or is it something like `nla_strscpy` that might handle it differently? I need to verify the exact expected format for this string attribute.
    *   **`TCA_OPTIONS`**: If `opt` and `opt_len` are provided, this attribute will contain the actual payload (`void *opt`) with its specified length (`opt_len`). This is where the specific configuration for the qdisc resides.

My immediate next step is to dive into the kernel source, specifically looking at functions that handle qdisc additions or modifications, like `tc_modify_qdisc`. I need to search for how `TCA_KIND` attributes are consumed. Functions like `nla_get_string` or `nla_strscpy` are prime candidates. I need to understand the precise mechanism used to extract the qdisc kind string from the Netlink message to ensure I construct the attribute correctly. This is critical for the message to be interpreted properly by the kernel.


777/7 2026/08/15 19:32 tool grepper
0m Args:
map[Expression:TCA_KIND PathPrefix:net/sched/]

Results:
map[Output:net/sched/cls_api.c=2050=static int tcf_fill_node(struct net *net, struct sk_buff *skb,
--
net/sched/cls_api.c-2076-	tcm->tcm_info = TC_H_MAKE(tp->prio, tp->protocol);
net/sched/cls_api.c:2077:	if (nla_put_string(skb, TCA_KIND, tp->ops->kind))
net/sched/cls_api.c-2078-		goto nla_put_failure;
--
net/sched/cls_api.c=2236=static int tc_new_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-2298-
net/sched/cls_api.c:2299:	if (tcf_proto_check_kind(tca[TCA_KIND], name)) {
net/sched/cls_api.c-2300-		NL_SET_ERR_MSG(extack, "Specified TC filter name too long");
--
net/sched/cls_api.c-2358-
net/sched/cls_api.c:2359:		if (tca[TCA_KIND] == NULL || !protocol) {
net/sched/cls_api.c-2360-			NL_SET_ERR_MSG(extack, "Filter kind and protocol must be specified");
--
net/sched/cls_api.c-2393-
net/sched/cls_api.c:2394:	if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], tp->ops->kind)) {
net/sched/cls_api.c-2395-		NL_SET_ERR_MSG(extack, "Specified filter kind does not match existing one");
--
net/sched/cls_api.c=2472=static int tc_del_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-2502-
net/sched/cls_api.c:2503:	if (prio == 0 && (protocol || t->tcm_handle || tca[TCA_KIND])) {
net/sched/cls_api.c-2504-		NL_SET_ERR_MSG(extack, "Cannot flush filters with protocol, handle or kind set");
--
net/sched/cls_api.c-2513-
net/sched/cls_api.c:2514:	if (tcf_proto_check_kind(tca[TCA_KIND], name)) {
net/sched/cls_api.c-2515-		NL_SET_ERR_MSG(extack, "Specified TC filter name too long");
--
net/sched/cls_api.c-2578-		goto errout_locked;
net/sched/cls_api.c:2579:	} else if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], tp->ops->kind)) {
net/sched/cls_api.c-2580-		NL_SET_ERR_MSG(extack, "Specified filter kind does not match existing one");
--
net/sched/cls_api.c=2631=static int tc_get_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-2672-
net/sched/cls_api.c:2673:	if (tcf_proto_check_kind(tca[TCA_KIND], name)) {
net/sched/cls_api.c-2674-		NL_SET_ERR_MSG(extack, "Specified TC filter name too long");
--
net/sched/cls_api.c-2722-		goto errout;
net/sched/cls_api.c:2723:	} else if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], tp->ops->kind)) {
net/sched/cls_api.c-2724-		NL_SET_ERR_MSG(extack, "Specified filter kind does not match existing one");
--
net/sched/cls_api.c=2948=static int tc_chain_fill_node(const struct tcf_proto_ops *tmplt_ops,
--
net/sched/cls_api.c-2984-	if (ops) {
net/sched/cls_api.c:2985:		if (nla_put_string(skb, TCA_KIND, ops->kind))
net/sched/cls_api.c-2986-			goto nla_put_failure;
--
net/sched/cls_api.c=3063=static int tc_chain_tmplt_add(struct tcf_chain *chain, struct net *net,
--
net/sched/cls_api.c-3071-	/* If kind is not set, user did not specify template. */
net/sched/cls_api.c:3072:	if (!tca[TCA_KIND])
net/sched/cls_api.c-3073-		return 0;
net/sched/cls_api.c-3074-
net/sched/cls_api.c:3075:	if (tcf_proto_check_kind(tca[TCA_KIND], name)) {
net/sched/cls_api.c-3076-		NL_SET_ERR_MSG(extack, "Specified TC chain template name too long");
--
net/sched/sch_api.c=898=static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid,
--
net/sched/sch_api.c-923-	tcm->tcm_info = refcount_read(&q->refcnt);
net/sched/sch_api.c:924:	if (nla_put_string(skb, TCA_KIND, q->ops->id))
net/sched/sch_api.c-925-		goto nla_put_failure;
--
net/sched/sch_api.c=1248=static struct Qdisc *qdisc_create(struct net_device *dev,
--
net/sched/sch_api.c-1254-	int err;
net/sched/sch_api.c:1255:	struct nlattr *kind = tca[TCA_KIND];
net/sched/sch_api.c-1256-	struct Qdisc *sch;
--
net/sched/sch_api.c=1456=const struct nla_policy rtm_tca_policy[TCA_MAX + 1] = {
net/sched/sch_api.c:1457:	[TCA_KIND]		= { .type = NLA_STRING },
net/sched/sch_api.c-1458-	[TCA_RATE]		= { .type = NLA_BINARY,
--
net/sched/sch_api.c=1471=static int __tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1517-
net/sched/sch_api.c:1518:	if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id)) {
net/sched/sch_api.c-1519-		NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
--
net/sched/sch_api.c=1585=static int __tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1645-				}
net/sched/sch_api.c:1646:				if (tca[TCA_KIND] &&
net/sched/sch_api.c:1647:				    nla_strcmp(tca[TCA_KIND], q->ops->id)) {
net/sched/sch_api.c-1648-					NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
--
net/sched/sch_api.c-1695-				 */
net/sched/sch_api.c:1696:				if (tca[TCA_KIND] &&
net/sched/sch_api.c:1697:				    nla_strcmp(tca[TCA_KIND], q->ops->id)) {
net/sched/sch_api.c-1698-					if (req_create_or_replace(n) ||
--
net/sched/sch_api.c-1722-	}
net/sched/sch_api.c:1723:	if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id)) {
net/sched/sch_api.c-1724-		NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
--
net/sched/sch_api.c=1799=static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1812-
net/sched/sch_api.c:1813:	request_qdisc_module(tca[TCA_KIND]);
net/sched/sch_api.c-1814-
--
net/sched/sch_api.c=1953=static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
--
net/sched/sch_api.c-1974-	tcm->tcm_info = 0;
net/sched/sch_api.c:1975:	if (nla_put_string(skb, TCA_KIND, q->ops->id))
net/sched/sch_api.c-1976-		goto nla_put_failure;
]

778/7 2026/08/15 19:32 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 44271
							output: 38
							thoughts: 665
						

Thoughts:
**My Thought Process on Netlink Qdisc Creation**

Alright, let's break down this netlink qdisc creation process.

First, I'm looking at `TCA_KIND`. The text points out that `rtm_tca_policy[TCA_KIND]` is defined as `NLA_STRING`. This immediately tells me that when we're dealing with the "kind" of a traffic control object, we're expecting a null-terminated C string. The `addattr_l` function in the selftests, specifically `tc_links.c`, and the general helper `addattrstrz` in `netlink_helpers.c` both reinforce this understanding: they add the `TCA_KIND` attribute with a length that includes the null terminator (`strlen(kind) + 1`). This is standard netlink string handling, and it's good to see the practical implementation matching the policy definition.

Next, I shift my attention to `TCA_OPTIONS`. The context here is the `add_qdisc` function, which takes a `kind`, `opt`, and `opt_len`. The crucial point is that if `opt` is provided and `opt_len` is positive, we're expected to add the `TCA_OPTIONS` attribute with this raw payload. The text then correctly notes a potential nuance: `TCA_OPTIONS` itself can be either a nested attribute structure or a raw binary struct, depending on the specific qdisc kind. The fact that the caller provides `opt` and `opt_len` as the "raw option payload" or "nested attributes constructed by caller" is key. Therefore, using `addattr_l` or the underlying `rtattr` mechanism to add `TCA_OPTIONS` with the given `opt` and `opt_len` is precisely the correct way to handle this, as it preserves whatever structure the caller has prepared.

Now, the really important part: the flags for the `RTM_NEWQDISC` message. The text explicitly asks about `nlmsg_flags`. It correctly identifies `NLM_F_REQUEST` as a fundamental requirement for any kernel request. But then it dives into the core logic for creating or replacing qdiscs: `NLM_F_ACK`, `NLM_F_CREATE`, `NLM_F_EXCL`, and `NLM_F_REPLACE`.

The initial question about `NLM_F_ACK` leads to a deeper investigation. Is an ACK always necessary or expected? The real drivers for qdisc creation behavior are `NLM_F_CREATE`, `NLM_F_EXCL`, and `NLM_F_REPLACE`. This is where I need to check how the kernel, specifically in `net/sched/sch_api.c` and the `tc_modify_qdisc` function, interprets these flags when adding a qdisc. The `NLM_F_CREATE` flag, as I understand it, signifies intent to create a *new* qdisc. The combination of `NLM_F_EXCL` (exclusive creation, failing if it already exists) and `NLM_F_REPLACE` (replacing an existing one if it exists) are the critical modifiers that dictate the exact behavior. My next step is to scrutinize the source code around `tc_modify_qdisc` (lines 1585-1700 in `net/sched/sch_api.c`) to see precisely how these flags influence the qdisc addition operation and any resulting error handling. This will clarify the exact flag combination required for different qdisc creation scenarios.


779/7 2026/08/15 19:32 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:1585 LineCount:80]

Results:
map[Contents:1585:	static int __tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1586:				     struct netlink_ext_ack *extack,
1587:				     struct net_device *dev,
1588:				     struct nlattr *tca[TCA_MAX + 1],
1589:				     struct tcmsg *tcm)
1590:	{
1591:		struct Qdisc *q = NULL;
1592:		struct Qdisc *p = NULL;
1593:		u32 clid;
1594:		int err;
1595:	
1596:		clid = tcm->tcm_parent;
1597:	
1598:		if (clid) {
1599:			if (clid != TC_H_ROOT) {
1600:				if (clid != TC_H_INGRESS) {
1601:					p = qdisc_lookup(dev, TC_H_MAJ(clid));
1602:					if (!p) {
1603:						NL_SET_ERR_MSG(extack, "Failed to find specified qdisc");
1604:						return -ENOENT;
1605:					}
1606:					if (p->flags & TCQ_F_INGRESS) {
1607:						NL_SET_ERR_MSG(extack,
1608:							       "Cannot add children to ingress/clsact qdisc");
1609:						return -EOPNOTSUPP;
1610:					}
1611:					q = qdisc_leaf(p, clid, extack);
1612:					if (IS_ERR(q))
1613:						return PTR_ERR(q);
1614:				} else if (dev_ingress_queue_create(dev)) {
1615:					q = rtnl_dereference(dev_ingress_queue(dev)->qdisc_sleeping);
1616:				}
1617:			} else {
1618:				q = rtnl_dereference(dev->qdisc);
1619:			}
1620:	
1621:			/* It may be default qdisc, ignore it */
1622:			if (q && q->handle == 0)
1623:				q = NULL;
1624:	
1625:			if (!q || !tcm->tcm_handle || q->handle != tcm->tcm_handle) {
1626:				if (tcm->tcm_handle) {
1627:					if (q && !(n->nlmsg_flags & NLM_F_REPLACE)) {
1628:						NL_SET_ERR_MSG(extack, "NLM_F_REPLACE needed to override");
1629:						return -EEXIST;
1630:					}
1631:					if (TC_H_MIN(tcm->tcm_handle)) {
1632:						NL_SET_ERR_MSG(extack, "Invalid minor handle");
1633:						return -EINVAL;
1634:					}
1635:					q = qdisc_lookup(dev, tcm->tcm_handle);
1636:					if (!q)
1637:						goto create_n_graft;
1638:					if (q->parent != tcm->tcm_parent) {
1639:						NL_SET_ERR_MSG(extack, "Cannot move an existing qdisc to a different parent");
1640:						return -EINVAL;
1641:					}
1642:					if (n->nlmsg_flags & NLM_F_EXCL) {
1643:						NL_SET_ERR_MSG(extack, "Exclusivity flag on, cannot override");
1644:						return -EEXIST;
1645:					}
1646:					if (tca[TCA_KIND] &&
1647:					    nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1648:						NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
1649:						return -EINVAL;
1650:					}
1651:					if (q->flags & TCQ_F_INGRESS) {
1652:						NL_SET_ERR_MSG(extack,
1653:							       "Cannot regraft ingress or clsact Qdiscs");
1654:						return -EINVAL;
1655:					}
1656:					if (q == p ||
1657:					    (p && check_loop(q, p, 0))) {
1658:						NL_SET_ERR_MSG(extack, "Qdisc parent/child loop detected");
1659:						return -ELOOP;
1660:					}
1661:					if (clid == TC_H_INGRESS) {
1662:						NL_SET_ERR_MSG(extack, "Ingress cannot graft directly");
1663:						return -EINVAL;
1664:					}
]

780/7 2026/08/15 19:32 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 46307
							output: 38
							thoughts: 23
						

Thoughts:
**A Deep Dive into `sch_api.c` at Line 1665**

Alright, my current line of inquiry is leading me to examine a very specific section of the kernel's network scheduler API implementation, specifically within the `net/sched/sch_api.c` file. I'm zeroing in on the code starting from line 1665. This is where I anticipate finding the core logic that governs how queuing disciplines are registered, configured, or perhaps even how their parameters are managed at a fundamental level within the Linux kernel's networking stack. Given the context of scheduler APIs, I'm expecting to see data structure manipulation, possibly involving linked lists or hash tables for managing available disciplines, and certainly the invocation of core kernel subsystems like memory allocation and locking to ensure thread-safe operations. My hypothesis is that this section will detail the internal housekeeping required to make a new queuing discipline discoverable and usable by the rest of the networking subsystem, potentially involving calls to functions that populate internal registries or check for compatibility. I need to understand the precise steps taken here to ensure I'm not missing any critical dependencies or nuances when integrating or debugging scheduler behavior.


781/7 2026/08/15 19:32 tool read-file
0m Args:
map[File:net/sched/sch_api.c FirstLine:1665 LineCount:40]

Results:
map[Contents:1665:					qdisc_refcount_inc(q);
1666:					goto graft;
1667:				} else {
1668:					if (!q)
1669:						goto create_n_graft;
1670:	
1671:					/* This magic test requires explanation.
1672:					 *
1673:					 *   We know, that some child q is already
1674:					 *   attached to this parent and have choice:
1675:					 *   1) change it or 2) create/graft new one.
1676:					 *   If the requested qdisc kind is different
1677:					 *   than the existing one, then we choose graft.
1678:					 *   If they are the same then this is "change"
1679:					 *   operation - just let it fallthrough..
1680:					 *
1681:					 *   1. We are allowed to create/graft only
1682:					 *   if the request is explicitly stating
1683:					 *   "please create if it doesn't exist".
1684:					 *
1685:					 *   2. If the request is to exclusive create
1686:					 *   then the qdisc tcm_handle is not expected
1687:					 *   to exist, so that we choose create/graft too.
1688:					 *
1689:					 *   3. The last case is when no flags are set.
1690:					 *   This will happen when for example tc
1691:					 *   utility issues a "change" command.
1692:					 *   Alas, it is sort of hole in API, we
1693:					 *   cannot decide what to do unambiguously.
1694:					 *   For now we select create/graft.
1695:					 */
1696:					if (tca[TCA_KIND] &&
1697:					    nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1698:						if (req_create_or_replace(n) ||
1699:						    req_create_exclusive(n))
1700:							goto create_n_graft;
1701:						else if (req_change(n))
1702:							goto create_n_graft2;
1703:					}
1704:				}
]

782/7 2026/08/15 19:32 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 46991
							output: 29
							thoughts: 606
						

Thoughts:
**My Thought Process Regarding Netlink Message Flags for RTM_NEWQDISC**

I've been looking at how we construct Netlink messages, specifically when adding a new queueing discipline (qdisc) using `RTM_NEWQDISC`. My initial thought was around the combination of flags like `NLM_F_REQUEST | NLM_F_ACK | NLM_F_CREATE | NLM_F_EXCL`. I wanted to verify if this was indeed the correct and most common pattern.

To do this, I decided to consult the `tools/lib/bpf/netlink.c` file. I found the exact line: `req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_CREATE | NLM_F_EXCL;`. This confirmed my initial hypothesis for that specific context. I also quickly checked the `iproute2` `tc` utility and saw the same combination: `NLM_F_REQUEST | NLM_F_ACK | NLM_F_CREATE | NLM_F_EXCL`.

However, this led me to a deeper consideration. What happens if someone calls `add_qdisc`? Should the flags still be `NLM_F_REQUEST | NLM_F_ACK | NLM_F_CREATE | NLM_F_EXCL`? Or could there be variations like just `NLM_F_CREATE | NLM_F_EXCL`, or even `NLM_F_CREATE` alone, or perhaps `NLM_F_CREATE | NLM_F_REPLACE`? This questioning is critical for ensuring robustness and understanding the intended behavior in different scenarios.

To resolve this, I need to confirm the standard practice for adding a qdisc. Is `NLM_F_CREATE | NLM_F_EXCL` or `NLM_F_CREATE` the definitive standard for this operation? To answer this, I'm planning to broaden my search. I'll be looking at other places within the kernel, specifically within the selftests and `bpftool`, where `RTM_NEWQDISC` messages are sent. My goal is to get a comprehensive view of how this Netlink message type is handled across different parts of the system.

I've already started by grepping for `RTM_NEWQDISC` across the codebase, and I've found some important snippets:

1.  In `tools/lib/bpf/netlink.c`, I saw the `tc_qdisc_create_excl` function. It explicitly calls `tc_qdisc_modify(hook, RTM_NEWQDISC, NLM_F_CREATE | NLM_F_EXCL)`. Then, it sets `req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;`. This is a clear example of using `NLM_F_CREATE | NLM_F_EXCL` when explicitly creating exclusively.

2.  In `tools/testing/selftests/bpf/prog_tests/tc_links.c`, I observed a different pattern: `req.n.nlmsg_flags = NLM_F_CREATE | NLM_F_REPLACE | NLM_F_REQUEST;`. This indicates that in some testing scenarios, `NLM_F_REPLACE` is used in conjunction with `NLM_F_CREATE` and `NLM_F_REQUEST`, suggesting a different operational intent, perhaps for updating existing qdiscs or idempotent creation.

My next step is to continue this search. I'll be specifically looking within the `samples/` directory and other selftest suites to find any further instances of `RTM_NEWQDISC` usage. This will help me build a more complete picture of the various flag combinations and their implications for creating and managing queueing disciplines.


783/7 2026/08/15 19:32 tool grepper
0m Args:
map[Expression:RTM_NEWQDISC PathPrefix:tools/]

Results:
map[Output:tools/include/uapi/linux/rtnetlink.h=24=enum {
--
tools/include/uapi/linux/rtnetlink.h-64-
tools/include/uapi/linux/rtnetlink.h:65:	RTM_NEWQDISC	= 36,
tools/include/uapi/linux/rtnetlink.h:66:#define RTM_NEWQDISC	RTM_NEWQDISC
tools/include/uapi/linux/rtnetlink.h-67-	RTM_DELQDISC,
--
tools/lib/bpf/netlink.c=621=static int tc_qdisc_create_excl(struct bpf_tc_hook *hook)
tools/lib/bpf/netlink.c-622-{
tools/lib/bpf/netlink.c:623:	return tc_qdisc_modify(hook, RTM_NEWQDISC, NLM_F_CREATE | NLM_F_EXCL);
tools/lib/bpf/netlink.c-624-}
--
tools/testing/selftests/bpf/prog_tests/tc_links.c=1798=static int qdisc_replace(int ifindex, const char *kind, bool block)
--
tools/testing/selftests/bpf/prog_tests/tc_links.c-1810-	req.n.nlmsg_flags = NLM_F_CREATE | NLM_F_REPLACE | NLM_F_REQUEST;
tools/testing/selftests/bpf/prog_tests/tc_links.c:1811:	req.n.nlmsg_type = RTM_NEWQDISC;
tools/testing/selftests/bpf/prog_tests/tc_links.c-1812-	req.t.tcm_family = AF_UNSPEC;
]

784/7 2026/08/15 19:32 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 48082
							output: 29
							thoughts: 47
						

Thoughts:
**My Thought Process on Code Exploration and Functionality Identification**

My immediate impulse upon encountering this task is to thoroughly investigate the codebase for related functionalities. Specifically, I want to pinpoint all instances where a new queuing discipline (qdisc) is being added or managed through Netlink. To achieve this, my primary search targets are the `samples/` and `tools/testing/selftests/` directories. Within these directories, I'll be meticulously looking for any functions that exhibit behavior similar to `RTM_NEWQDISC` or `add_qdisc`. My objective is to build a comprehensive understanding of how queuing disciplines are programmatically configured and manipulated within this system, ensuring I don't overlook any critical or relevant implementation details.


785/7 2026/08/15 19:32 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:RTM_NEWQDISC PathPrefix:samples/]

Results:
map[Output:]

786/7 2026/08/15 19:32 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 48156
							output: 24
							thoughts: 1527
						

Thoughts:
**My Thought Process on Crafting the `add_qdisc` Netlink Function**

Alright, diving into this `add_qdisc` netlink function. My primary goal is to construct and send an `RTM_NEWQDISC` message. The prompt is quite specific, laying out the function signature and its parameters. My first step is always to parse that signature and understand what each piece represents:

*   `int fd`: This is the established netlink socket file descriptor – the conduit through which I'll communicate with the kernel.
*   `int ifindex`: This identifies the specific network interface the qdisc will be attached to. It's essential for targeting the correct network stack context.
*   `uint32_t parent`: This tells me which existing qdisc this new one will be a child of. A value of `TC_H_INGRESS` is a common special case.
*   `uint32_t handle`: This is the unique identifier for the qdisc I'm about to create.
*   `const char *kind`: The type of qdisc I want to install, like "fq_codel" or "ingress". This is crucial for the kernel to know what kind of traffic control mechanism to instantiate.
*   `void *opt`: This is where any specific configuration or options for the qdisc go. This is typically a structure or data blob defined by the `kind`.
*   `int opt_len`: The size of the data pointed to by `opt`.

Now, I need to piece together the actual netlink message. I know netlink messages have a standard header, `struct nlmsghdr`, followed by a protocol-specific payload. For traffic control (`RTM_NEWQDISC`), that payload starts with `struct tcmsg`. After `tcmsg`, I'll need to add attributes, which are the key-value pairs that convey the details of the qdisc.

The prompt specifically mentions two key attributes:
*   `TCA_KIND`: This will hold the `kind` string. I need to remember to include the null terminator if it's a C string, and to align the attribute payload.
*   `TCA_OPTIONS`: This will hold the `opt` data. Again, alignment is important here.

So, the structure looks like: `nlmsghdr` + `tcmsg` + `TCA_KIND` attribute + `TCA_OPTIONS` attribute.

The core of my thinking then shifts to populating these structures, particularly `nlmsghdr` and `tcmsg`.

For `nlmsghdr`:
*   `nlmsg_len`: This needs to be the total size of the message. I'll start with `NLMSG_LENGTH(sizeof(struct tcmsg))` and then add the size of each attribute, making sure to use `RTA_ALIGN()` for padding.
*   `nlmsg_type`: This is explicitly `RTM_NEWQDISC` as per the prompt.
*   `nlmsg_flags`: This is where things get a bit nuanced. I'm sending a request to the kernel, so `NLM_F_REQUEST` is a must. To create a new qdisc, `NLM_F_CREATE` is required. If I want to ensure this qdisc *doesn't* already exist, then `NLM_F_EXCL` is necessary. The prompt implies a creation operation that might fail if it already exists, so `NLM_F_CREATE | NLM_F_EXCL` seems appropriate.

Now, the question of `NLM_F_ACK`: This is a critical point. If I set `NLM_F_ACK`, the kernel is guaranteed to send back an `NLMSG_ERROR` message, indicating success (error code 0) or failure (a negative `errno`). If I *don't* set it, the kernel might only send a message back on *error*. The prompt asks to *send* the message, and it doesn't explicitly require *receiving* the response within `add_qdisc` itself. However, the implication of "sending a netlink message to add a qdisc" and expecting it to *work* often means we're interested in the outcome.

My internal debate goes like this:
1.  **Just send:** If `add_qdisc` is strictly about sending, then I might just use `NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL`. The caller would then be responsible for potentially receiving an error if the send operation itself fails, or the kernel might implicitly signal errors through other means if `NLM_F_ACK` isn't set.
2.  **Send and expect an ack:** If the intent is for `add_qdisc` to be somewhat self-contained in confirming the operation, then `NLM_F_ACK` becomes important. If `NLM_F_ACK` is set, the kernel *always* sends an `NLMSG_ERROR` response. This means `add_qdisc` would need to *also* perform a `recv` or `recvmsg` operation to check the kernel's reply. This adds complexity – I'd need to handle potential blocking, buffer sizes for the ack, and parsing the error code.

The prompt is slightly ambiguous on whether the *function itself* should receive the ack. It says "sends an RTM_NEWQDISC netlink message... The function should construct the netlink message with the given parameters and send it." This leans towards just sending. However, in practice, when adding network objects, you *almost always* want to know if it succeeded.

Given I'm writing for an expert, I'd consider the most robust implementation. If `add_qdisc` is meant to be a utility that *confirms* the addition, then including `NLM_F_ACK` and performing a receive is the way to go. But if it's purely a "fire and forget" sender, then `NLM_F_ACK` might be omitted.

Let's re-evaluate the prompt's wording: "sends an RTM_NEWQDISC netlink message". This suggests the primary action is the `send`. The prompt *doesn't* explicitly state "and confirm its addition." Therefore, for now, I'll lean towards the minimal implementation that fulfills "send it." This means I'll focus on correctly constructing and sending, and leave the reception of the ack (if desired) to the caller or a higher-level function. This means I'll initially consider flags like `NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL`. The exact interplay of these flags and `NLM_F_ACK` is a common point of confusion, and it's good to explicitly consider the trade-offs.

For `tcmsg`:
*   `tcm_family`: This should be `AF_UNSPEC` or `AF_INET` / `AF_INET6` if applicable, but for generic qdisc addition, `AF_UNSPEC` is common.
*   `tcm_ifindex`: This will be the `ifindex` parameter.
*   `tcm_handle`: This will be the `handle` parameter.
*   `tcm_parent`: This will be the `parent` parameter.
*   `tcm_info`: This is often set to 0 for `RTM_NEWQDISC`.

So, the plan is:
1.  Allocate a buffer large enough for the `nlmsghdr`, `tcmsg`, and attributes (e.g., `char buf[1024]`).
2.  Initialize `nlmsghdr` and `tcmsg` according to the parameters.
3.  Add the `TCA_KIND` attribute using `nla_put()` or similar helpers.
4.  Add the `TCA_OPTIONS` attribute if `opt` and `opt_len` are provided.
5.  Calculate the final `nlmsg_len`.
6.  Use `sendto()` to send the constructed message to the netlink socket `fd`.
7.  Return the number of bytes sent, or an error code.

The consideration of `NLM_F_ACK` vs. not, and whether to receive, is a design choice. For this specific prompt, focusing on *sending* means I'll construct the message with `NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL` and not include a receive loop within `add_qdisc` itself. If the intent was "add and confirm", I'd definitely add the `NLM_F_ACK` and the receive logic. My current understanding points to the former.


787/7 2026/08/15 19:33 tool grepper
0m Args:
map[Expression:sendto PathPrefix:tools/]

Results:
map[Output:
Full output is too long, showing 500 out of 803 lines.
Use more precise expression if possible.

tools/accounting/delaytop.c=419=static int send_cmd(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
--
tools/accounting/delaytop.c-450-	nladdr.nl_family = AF_NETLINK;
tools/accounting/delaytop.c:451:	while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *) &nladdr,
tools/accounting/delaytop.c-452-					sizeof(nladdr))) < buflen) {
--
tools/accounting/getdelays.c=145=static int send_cmd(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
--
tools/accounting/getdelays.c-172-	nladdr.nl_family = AF_NETLINK;
tools/accounting/getdelays.c:173:	while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *) &nladdr,
tools/accounting/getdelays.c-174-			   sizeof(nladdr))) < buflen) {
--
tools/accounting/getdelays.c=189=static int get_family_id(int sd)
--
tools/accounting/getdelays.c-205-	if (rc < 0)
tools/accounting/getdelays.c:206:		return 0;	/* sendto() failure? */
tools/accounting/getdelays.c-207-
--
tools/accounting/procacct.c=151=static int send_cmd(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
--
tools/accounting/procacct.c-178-	nladdr.nl_family = AF_NETLINK;
tools/accounting/procacct.c:179:	while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *) &nladdr,
tools/accounting/procacct.c-180-			   sizeof(nladdr))) < buflen) {
--
tools/accounting/procacct.c=195=static int get_family_id(int sd)
--
tools/accounting/procacct.c-211-	if (rc < 0)
tools/accounting/procacct.c:212:		return 0;	/* sendto() failure? */
tools/accounting/procacct.c-213-
--
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst=74=bpftool cgroup attach *CGROUP* *ATTACH_TYPE* *PROG* [*ATTACH_FLAGS*]
--
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst-106-    - **connect_unix** call to connect(2) for a unix socket (since 6.7)
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst:107:    - **sendmsg4** call to sendto(2), sendmsg(2), sendmmsg(2) for an unconnected udp4 socket (since 4.18)
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst:108:    - **sendmsg6** call to sendto(2), sendmsg(2), sendmmsg(2) for an unconnected udp6 socket (since 4.18)
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst:109:    - **sendmsg_unix** call to sendto(2), sendmsg(2), sendmmsg(2) for an unconnected unix socket (since 6.7)
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst-110-    - **recvmsg4** call to recvfrom(2), recvmsg(2), recvmmsg(2) for an unconnected udp4 socket (since 5.2)
--
tools/include/uapi/asm-generic/unistd.h=537=__SYSCALL(__NR_getpeername, sys_getpeername)
tools/include/uapi/asm-generic/unistd.h:538:#define __NR_sendto 206
tools/include/uapi/asm-generic/unistd.h:539:__SYSCALL(__NR_sendto, sys_sendto)
tools/include/uapi/asm-generic/unistd.h-540-#define __NR_recvfrom 207
--
tools/include/uapi/linux/if_xdp.h-21- * set. If it is set, the application need to explicitly wake up the
tools/include/uapi/linux/if_xdp.h:22: * driver with a poll() (Rx and Tx) or sendto() (Tx only). If you are
tools/include/uapi/linux/if_xdp.h-23- * running the driver and the application on the same core, you should
--
tools/perf/arch/alpha/entry/syscalls/syscall.tbl-140-132	common	setgid				sys_setgid
tools/perf/arch/alpha/entry/syscalls/syscall.tbl:141:133	common	sendto				sys_sendto
tools/perf/arch/alpha/entry/syscalls/syscall.tbl-142-134	common	shutdown			sys_shutdown
--
tools/perf/arch/arm/entry/syscalls/syscall.tbl-307-289	common	send			sys_send
tools/perf/arch/arm/entry/syscalls/syscall.tbl:308:290	common	sendto			sys_sendto		sys_oabi_sendto
tools/perf/arch/arm/entry/syscalls/syscall.tbl-309-291	common	recv			sys_recv
--
tools/perf/arch/arm64/entry/syscalls/syscall_32.tbl-304-289	common	send			sys_send
tools/perf/arch/arm64/entry/syscalls/syscall_32.tbl:305:290	common	sendto			sys_sendto
tools/perf/arch/arm64/entry/syscalls/syscall_32.tbl-306-291	common	recv			sys_recv		compat_sys_recv
--
tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl-52-42	n64	accept				sys_accept
tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl:53:43	n64	sendto				sys_sendto
tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl-54-44	n64	recvfrom			sys_recvfrom
--
tools/perf/arch/parisc/entry/syscalls/syscall.tbl-94-81	common	setgroups		sys_setgroups
tools/perf/arch/parisc/entry/syscalls/syscall.tbl:95:82	common	sendto			sys_sendto
tools/perf/arch/parisc/entry/syscalls/syscall.tbl-96-83	common	symlink			sys_symlink
--
tools/perf/arch/powerpc/entry/syscalls/syscall.tbl-434-334	common	send				sys_send
tools/perf/arch/powerpc/entry/syscalls/syscall.tbl:435:335	common	sendto				sys_sendto
tools/perf/arch/powerpc/entry/syscalls/syscall.tbl-436-336	common	recv				sys_recv			compat_sys_recv
--
tools/perf/arch/s390/entry/syscalls/syscall.tbl-322-368	common	getpeername			sys_getpeername
tools/perf/arch/s390/entry/syscalls/syscall.tbl:323:369	common	sendto				sys_sendto
tools/perf/arch/s390/entry/syscalls/syscall.tbl-324-370	common	sendmsg				sys_sendmsg
--
tools/perf/arch/sh/entry/syscalls/syscall.tbl-358-348	common	send				sys_send
tools/perf/arch/sh/entry/syscalls/syscall.tbl:359:349	common	sendto				sys_sendto
tools/perf/arch/sh/entry/syscalls/syscall.tbl-360-350	common	recv				sys_recv
--
tools/perf/arch/sparc/entry/syscalls/syscall.tbl-167-132	common	lstat64			sys_lstat64			compat_sys_lstat64
tools/perf/arch/sparc/entry/syscalls/syscall.tbl:168:133	common	sendto			sys_sendto
tools/perf/arch/sparc/entry/syscalls/syscall.tbl-169-134	common	shutdown		sys_shutdown
--
tools/perf/arch/x86/entry/syscalls/syscall_32.tbl-383-368	i386	getpeername		sys_getpeername
tools/perf/arch/x86/entry/syscalls/syscall_32.tbl:384:369	i386	sendto			sys_sendto
tools/perf/arch/x86/entry/syscalls/syscall_32.tbl-385-370	i386	sendmsg			sys_sendmsg			compat_sys_sendmsg
--
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl-55-43	common	accept			sys_accept
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl:56:44	common	sendto			sys_sendto
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl-57-45	64	recvfrom		sys_recvfrom
--
tools/perf/arch/xtensa/entry/syscalls/syscall.tbl-122-109	common	recv				sys_recv
tools/perf/arch/xtensa/entry/syscalls/syscall.tbl:123:110	common	sendto				sys_sendto
tools/perf/arch/xtensa/entry/syscalls/syscall.tbl-124-111	common	recvfrom			sys_recvfrom
--
tools/perf/builtin-timechart.c=1585=static int __cmd_timechart(struct timechart *tchart, const char *output_name)
--
tools/perf/builtin-timechart.c-1612-		{ "syscalls:sys_enter_recvmsg",		process_enter_rx },
tools/perf/builtin-timechart.c:1613:		{ "syscalls:sys_enter_sendto",		process_enter_tx },
tools/perf/builtin-timechart.c-1614-		{ "syscalls:sys_enter_sendmsg",		process_enter_tx },
--
tools/perf/builtin-timechart.c-1637-		{ "syscalls:sys_exit_recvmsg",		process_exit_rx },
tools/perf/builtin-timechart.c:1638:		{ "syscalls:sys_exit_sendto",		process_exit_tx },
tools/perf/builtin-timechart.c-1639-		{ "syscalls:sys_exit_sendmsg",		process_exit_tx },
--
tools/perf/builtin-timechart.c=1699=static int timechart__io_record(int argc, const char **argv, const char *output_data)
--
tools/perf/builtin-timechart.c-1743-		"syscalls:sys_enter_recvmsg",
tools/perf/builtin-timechart.c:1744:		"syscalls:sys_enter_sendto",
tools/perf/builtin-timechart.c-1745-		"syscalls:sys_enter_sendmsg",
--
tools/perf/builtin-timechart.c-1750-		"syscalls:sys_exit_recvmsg",
tools/perf/builtin-timechart.c:1751:		"syscalls:sys_exit_sendto",
tools/perf/builtin-timechart.c-1752-		"syscalls:sys_exit_sendmsg",
--
tools/perf/builtin-trace.c=1134=static const struct syscall_fmt syscall_fmts[] = {
--
tools/perf/builtin-trace.c-1359-	  .arg = { [2] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ }, }, },
tools/perf/builtin-trace.c:1360:	{ .name	    = "sendto",
tools/perf/builtin-trace.c-1361-	  .arg = { [3] = { .scnprintf = SCA_MSG_FLAGS, /* flags */ },
--
tools/perf/trace/beauty/include/linux/socket.h=448=extern int __sys_recvfrom(int fd, void __user *ubuf, size_t size,
--
tools/perf/trace/beauty/include/linux/socket.h-450-			  int __user *addr_len);
tools/perf/trace/beauty/include/linux/socket.h:451:extern int __sys_sendto(int fd, void __user *buff, size_t len,
tools/perf/trace/beauty/include/linux/socket.h-452-			unsigned int flags, struct sockaddr __user *addr,
--
tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c=207=int sys_enter_connect(struct syscall_enter_args *args)
--
tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c-226-
tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c:227:SEC("tp/syscalls/sys_enter_sendto")
tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c:228:int sys_enter_sendto(struct syscall_enter_args *args)
tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c-229-{
--
tools/scripts/syscall.tbl-249-205	common	getpeername			sys_getpeername
tools/scripts/syscall.tbl:250:206	common	sendto				sys_sendto
tools/scripts/syscall.tbl-251-207	common	recvfrom			sys_recvfrom			compat_sys_recvfrom
--
tools/testing/selftests/acct/taskstats_fill_stats_tgid.c=109=static int send_request(int fd, void *buf, size_t len)
--
tools/testing/selftests/acct/taskstats_fill_stats_tgid.c-114-
tools/testing/selftests/acct/taskstats_fill_stats_tgid.c:115:	if (sendto(fd, buf, len, 0, (struct sockaddr *)&addr, sizeof(addr)) < 0)
tools/testing/selftests/acct/taskstats_fill_stats_tgid.c-116-		return -errno;
--
tools/testing/selftests/bpf/network_helpers.c=229=int fastopen_connect(int server_fd, const char *data, unsigned int data_len,
--
tools/testing/selftests/bpf/network_helpers.c-251-
tools/testing/selftests/bpf/network_helpers.c:252:	ret = sendto(fd, data, data_len, MSG_FASTOPEN, (struct sockaddr *)&addr,
tools/testing/selftests/bpf/network_helpers.c-253-		     addrlen);
tools/testing/selftests/bpf/network_helpers.c-254-	if (ret != data_len) {
tools/testing/selftests/bpf/network_helpers.c:255:		log_err("sendto(data, %u) != %d\n", data_len, ret);
tools/testing/selftests/bpf/network_helpers.c-256-		goto error_close;
--
tools/testing/selftests/bpf/prog_tests/assign_reuse.c=35=static int echo_test_udp(int fd_sv)
--
tools/testing/selftests/bpf/prog_tests/assign_reuse.c-54-	ASSERT_EQ(ret, 1, "recv_server");
tools/testing/selftests/bpf/prog_tests/assign_reuse.c:55:	ASSERT_EQ(sendto(fd_sv, buff, sizeof(buff), 0, (void *)&addr, len), 1, "send_server");
tools/testing/selftests/bpf/prog_tests/assign_reuse.c-56-	ASSERT_EQ(recv(fd_cl, buff, sizeof(buff), 0), 1, "recv_client");
--
tools/testing/selftests/bpf/prog_tests/cgroup_ancestor.c=23=static int send_datagram(void)
--
tools/testing/selftests/bpf/prog_tests/cgroup_ancestor.c-42-
tools/testing/selftests/bpf/prog_tests/cgroup_ancestor.c:43:	n = sendto(sock, buf, sizeof(buf), 0, (const struct sockaddr *)&addr,
tools/testing/selftests/bpf/prog_tests/cgroup_ancestor.c-44-		   sizeof(addr));
--
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c=80=void test_crypto_sanity(void)
--
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c-149-		goto fail;
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c:150:	err = sendto(sockfd, plain_text, sizeof(plain_text), 0, (void *)&addr, addrlen);
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c-151-	close(sockfd);
--
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c-174-		goto fail;
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c:175:	err = sendto(sockfd, afalg_dst, sizeof(afalg_dst), 0, (void *)&addr, addrlen);
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c-176-	close(sockfd);
--
tools/testing/selftests/bpf/prog_tests/decap_sanity.c=16=void test_decap_sanity(void)
--
tools/testing/selftests/bpf/prog_tests/decap_sanity.c-59-		goto fail;
tools/testing/selftests/bpf/prog_tests/decap_sanity.c:60:	err = sendto(sockfd, buf, sizeof(buf), 0, (void *)&addr, addrlen);
tools/testing/selftests/bpf/prog_tests/decap_sanity.c-61-	close(sockfd);
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c=104=static int send_frags(int client)
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-115-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:116:	err = sendto(client, frag_0, sizeof(frag_0), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:117:	if (!ASSERT_GE(err, 0, "sendto frag_0"))
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-118-		return -1;
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-119-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:120:	err = sendto(client, frag_1, sizeof(frag_1), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:121:	if (!ASSERT_GE(err, 0, "sendto frag_1"))
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-122-		return -1;
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-123-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:124:	err = sendto(client, frag_2, sizeof(frag_2), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:125:	if (!ASSERT_GE(err, 0, "sendto frag_2"))
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-126-		return -1;
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c=131=static int send_frags6(int client)
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-143-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:144:	err = sendto(client, frag6_0, sizeof(frag6_0), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:145:	if (!ASSERT_GE(err, 0, "sendto frag6_0"))
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-146-		return -1;
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-147-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:148:	err = sendto(client, frag6_1, sizeof(frag6_1), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:149:	if (!ASSERT_GE(err, 0, "sendto frag6_1"))
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-150-		return -1;
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-151-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:152:	err = sendto(client, frag6_2, sizeof(frag6_2), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:153:	if (!ASSERT_GE(err, 0, "sendto frag6_2"))
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-154-		return -1;
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c=159=void test_bpf_ip_check_defrag_ok(bool ipv6)
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-256-		goto out;
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:257:	len = sendto(srv_fd, buf, len, 0, (struct sockaddr *)&caddr, caddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:258:	if (!ASSERT_GE(len, 0, "server sendto"))
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-259-		goto out;
--
tools/testing/selftests/bpf/prog_tests/lwt_seg6local.c=114=void test_lwt_seg6local(void)
--
tools/testing/selftests/bpf/prog_tests/lwt_seg6local.c-155-
tools/testing/selftests/bpf/prog_tests/lwt_seg6local.c:156:	bytes = sendto(cfd, foobar, sizeof(foobar), 0,
tools/testing/selftests/bpf/prog_tests/lwt_seg6local.c-157-		       (struct sockaddr *)&server_addr, sizeof(server_addr));
--
tools/testing/selftests/bpf/prog_tests/select_reuseport.c=366=static int send_data(int type, sa_family_t family, void *data, size_t len,
--
tools/testing/selftests/bpf/prog_tests/select_reuseport.c-377-	RET_ERR(fd == -1, "bind(cli_sa)", "err:%d errno:%d\n", err, errno);
tools/testing/selftests/bpf/prog_tests/select_reuseport.c:378:	err = sendto(fd, data, len, MSG_FASTOPEN, (struct sockaddr *)&srv_sa,
tools/testing/selftests/bpf/prog_tests/select_reuseport.c-379-		     sizeof(srv_sa));
tools/testing/selftests/bpf/prog_tests/select_reuseport.c-380-	RET_ERR(err != len && expected >= PASS,
tools/testing/selftests/bpf/prog_tests/select_reuseport.c:381:		"sendto()", "family:%u err:%d errno:%d expected:%d\n",
tools/testing/selftests/bpf/prog_tests/select_reuseport.c-382-		family, err, errno, expected);
--
tools/testing/selftests/bpf/prog_tests/tc_netkit.c=133=static int __send_icmp(__u32 dest)
--
tools/testing/selftests/bpf/prog_tests/tc_netkit.c-169-
tools/testing/selftests/bpf/prog_tests/tc_netkit.c:170:	ret = sendto(sock, &icmp, sizeof(icmp), 0,
tools/testing/selftests/bpf/prog_tests/tc_netkit.c-171-		     (struct sockaddr *)&addr, sizeof(addr));
tools/testing/selftests/bpf/prog_tests/tc_netkit.c:172:	if (!ASSERT_GE(ret, 0, "icmp_sendto"))
tools/testing/selftests/bpf/prog_tests/tc_netkit.c-173-		ret = -errno;
--
tools/testing/selftests/bpf/prog_tests/test_bpf_smc.c=63=static int send_cmd(int fd, __u16 nlmsg_type, __u32 nlmsg_pid,
--
tools/testing/selftests/bpf/prog_tests/test_bpf_smc.c-91-
tools/testing/selftests/bpf/prog_tests/test_bpf_smc.c:92:	while ((r = sendto(fd, buf, buflen, 0, (struct sockaddr *)&nladdr,
tools/testing/selftests/bpf/prog_tests/test_bpf_smc.c-93-			   sizeof(nladdr))) < buflen) {
--
tools/testing/selftests/bpf/prog_tests/test_dst_clear.c=15=void test_ns_dst_clear(void)
--
tools/testing/selftests/bpf/prog_tests/test_dst_clear.c-44-		goto fail;
tools/testing/selftests/bpf/prog_tests/test_dst_clear.c:45:	err = sendto(sockfd, buf, sizeof(buf), 0, (void *)&addr, addrlen);
tools/testing/selftests/bpf/prog_tests/test_dst_clear.c-46-	close(sockfd);
--
tools/testing/selftests/bpf/prog_tests/test_xsk.c=898=static bool kick_tx_with_check(struct xsk_socket_info *xsk, int *ret)
--
tools/testing/selftests/bpf/prog_tests/test_xsk.c-905-	ready_to_send = load_value(xsk->tx.producer) - cons;
tools/testing/selftests/bpf/prog_tests/test_xsk.c:906:	*ret = sendto(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, 0);
tools/testing/selftests/bpf/prog_tests/test_xsk.c-907-
--
tools/testing/selftests/bpf/prog_tests/test_xsk.c=922=int kick_tx(struct xsk_socket_info *xsk)
--
tools/testing/selftests/bpf/prog_tests/test_xsk.c-929-	} else {
tools/testing/selftests/bpf/prog_tests/test_xsk.c:930:		ret = sendto(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, 0);
tools/testing/selftests/bpf/prog_tests/test_xsk.c-931-	}
--
tools/testing/selftests/bpf/prog_tests/vrf_socket_lookup.c=201=static int test_lookup(struct vrf_socket_lookup *skel, int sotype,
--
tools/testing/selftests/bpf/prog_tests/vrf_socket_lookup.c-219-	else
tools/testing/selftests/bpf/prog_tests/vrf_socket_lookup.c:220:		sendto(fd, msg, sizeof(msg), 0, (void *)&addr,
tools/testing/selftests/bpf/prog_tests/vrf_socket_lookup.c-221-		       sizeof(struct sockaddr_in));
--
tools/testing/selftests/bpf/prog_tests/xdp_bonding.c=212=static int send_udp_packets(int vary_dst_ip)
--
tools/testing/selftests/bpf/prog_tests/xdp_bonding.c-262-
tools/testing/selftests/bpf/prog_tests/xdp_bonding.c:263:		n = sendto(s, buf, sizeof(buf), 0, (struct sockaddr *)&saddr_ll, sizeof(saddr_ll));
tools/testing/selftests/bpf/prog_tests/xdp_bonding.c:264:		if (!ASSERT_EQ(n, sizeof(buf), "sendto"))
tools/testing/selftests/bpf/prog_tests/xdp_bonding.c-265-			goto err;
--
tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c=135=static int send_test_packet(int ifindex)
--
tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c-156-	};
tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c:157:	n = sendto(sock, packet, sizeof(packet), 0, (struct sockaddr *)&saddr,
tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c-158-		   sizeof(saddr));
tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c:159:	if (!ASSERT_EQ(n, sizeof(packet), "sendto"))
tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c-160-		goto err;
--
tools/testing/selftests/bpf/prog_tests/xdp_flowtable.c=34=static int send_udp_traffic(void)
--
tools/testing/selftests/bpf/prog_tests/xdp_flowtable.c-49-
tools/testing/selftests/bpf/prog_tests/xdp_flowtable.c:50:		n = sendto(sock, buf, sizeof(buf), MSG_NOSIGNAL | MSG_CONFIRM,
tools/testing/selftests/bpf/prog_tests/xdp_flowtable.c-51-			   (struct sockaddr *)&addr, sizeof(addr));
--
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c=136=static int generate_packet(struct xsk *xsk, __u16 dst_port)
--
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c-195-
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c:196:	ret = sendto(xsk_socket__fd(xsk->socket), NULL, 0, MSG_DONTWAIT, NULL, 0);
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c:197:	if (!ASSERT_GE(ret, 0, "sendto"))
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c-198-		return ret;
--
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c=203=static int generate_packet_inet(void)
--
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c-218-
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c:219:	err = sendto(sock_fd, udp_payload, UDP_PAYLOAD_BYTES, MSG_DONTWAIT,
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c-220-		     (void *)&rx_addr, sizeof(rx_addr));
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c:221:	ASSERT_GE(err, 0, "sendto");
tools/testing/selftests/bpf/prog_tests/xdp_metadata.c-222-
--
tools/testing/selftests/bpf/xdp_features.c=224=static void *dut_echo_thread(void *arg)
--
tools/testing/selftests/bpf/xdp_features.c-242-
tools/testing/selftests/bpf/xdp_features.c:243:		sendto(sockfd, buf, sizeof(buf), MSG_NOSIGNAL | MSG_CONFIRM,
tools/testing/selftests/bpf/xdp_features.c-244-		       (struct sockaddr *)&addr, addrlen);
--
tools/testing/selftests/bpf/xdp_features.c=550=static int send_echo_msg(void)
--
tools/testing/selftests/bpf/xdp_features.c-566-
tools/testing/selftests/bpf/xdp_features.c:567:	n = sendto(sockfd, buf, sizeof(*tlv), MSG_NOSIGNAL | MSG_CONFIRM,
tools/testing/selftests/bpf/xdp_features.c-568-		   (struct sockaddr *)&env.dut_addr, sizeof(env.dut_addr));
--
tools/testing/selftests/bpf/xdp_hw_metadata.c=174=static int kick_tx(struct xsk *xsk)
tools/testing/selftests/bpf/xdp_hw_metadata.c-175-{
tools/testing/selftests/bpf/xdp_hw_metadata.c:176:	return sendto(xsk_socket__fd(xsk->socket), NULL, 0, MSG_DONTWAIT, NULL, 0);
tools/testing/selftests/bpf/xdp_hw_metadata.c-177-}
--
tools/testing/selftests/drivers/net/hw/uso.py=24=def _send_uso(cfg, ipver, mss, total_payload, port):
--
tools/testing/selftests/drivers/net/hw/uso.py-34-                      for _ in range(total_payload))
tools/testing/selftests/drivers/net/hw/uso.py:35:    sock.sendto(payload.encode(), dst)
tools/testing/selftests/drivers/net/hw/uso.py-36-    sock.close()
--
tools/testing/selftests/landlock/audit.h=70=static int audit_send(const int fd, const struct audit_message *const msg)
--
tools/testing/selftests/landlock/audit.h-77-	do {
tools/testing/selftests/landlock/audit.h:78:		ret = sendto(fd, msg, msg->header.nlmsg_len, 0,
tools/testing/selftests/landlock/audit.h-79-			     (struct sockaddr *)&addr, sizeof(addr));
--
tools/testing/selftests/landlock/fs_test.c=4303=TEST_F_FORK(ioctl, handle_file_access_file)
--
tools/testing/selftests/landlock/fs_test.c-4337-/*
tools/testing/selftests/landlock/fs_test.c:4338: * test_sendto_named_unix - sendto to the given named UNIX socket
tools/testing/selftests/landlock/fs_test.c-4339- *
tools/testing/selftests/landlock/fs_test.c:4340: * sendto() is equivalent to sendmsg() in this respect.
tools/testing/selftests/landlock/fs_test.c-4341- *
tools/testing/selftests/landlock/fs_test.c:4342: * Return: The errno from sendto(), or 0
tools/testing/selftests/landlock/fs_test.c-4343- */
tools/testing/selftests/landlock/fs_test.c:4344:static int test_sendto_named_unix(struct __test_metadata *const _metadata,
tools/testing/selftests/landlock/fs_test.c-4345-				  int fd, const char *const path)
--
tools/testing/selftests/landlock/fs_test.c-4354-
tools/testing/selftests/landlock/fs_test.c:4355:	if (sendto(fd, buf, sizeof(buf), 0, (struct sockaddr *)&addr,
tools/testing/selftests/landlock/fs_test.c-4356-		   sizeof(addr)) == -1)
--
tools/testing/selftests/landlock/fs_test.c=4372=FIXTURE_TEARDOWN(scoped_domains)
--
tools/testing/selftests/landlock/fs_test.c-4378- *
tools/testing/selftests/landlock/fs_test.c:4379: * USE_SENDTO: Use sendto() instead of connect() (for SOCK_DGRAM only)
tools/testing/selftests/landlock/fs_test.c-4380- * ENFORCE_ALL: Enforce a Landlock domain even when the variant says
--
tools/testing/selftests/landlock/fs_test.c=4387=static void test_connect_to_parent(struct __test_metadata *const _metadata,
--
tools/testing/selftests/landlock/fs_test.c-4433-		if (flags & USE_SENDTO)
tools/testing/selftests/landlock/fs_test.c:4434:			res = test_sendto_named_unix(_metadata, cli_fd, path);
tools/testing/selftests/landlock/fs_test.c-4435-		else
--
tools/testing/selftests/landlock/fs_test.c=4469=static void test_connect_to_child(struct __test_metadata *const _metadata,
--
tools/testing/selftests/landlock/fs_test.c-4543-	if (flags & USE_SENDTO)
tools/testing/selftests/landlock/fs_test.c:4544:		res = test_sendto_named_unix(_metadata, cli_fd, path);
tools/testing/selftests/landlock/fs_test.c-4545-	else
--
tools/testing/selftests/landlock/net_test.c=286=static int connect_variant(const int sock_fd,
--
tools/testing/selftests/landlock/net_test.c-291-
tools/testing/selftests/landlock/net_test.c:292:static int sendto_variant_addrlen(const int sock_fd,
tools/testing/selftests/landlock/net_test.c-293-				  const struct service_fixture *const srv,
--
tools/testing/selftests/landlock/net_test.c-326-
tools/testing/selftests/landlock/net_test.c:327:	ret = sendto(sock_fd, buf, len, flags, dst, addrlen);
tools/testing/selftests/landlock/net_test.c-328-	if (ret < 0)
--
tools/testing/selftests/landlock/net_test.c-337-
tools/testing/selftests/landlock/net_test.c:338:static int sendto_variant(const int sock_fd,
tools/testing/selftests/landlock/net_test.c-339-			  const struct service_fixture *const srv, void *buf,
--
tools/testing/selftests/landlock/net_test.c-346-
tools/testing/selftests/landlock/net_test.c:347:	return sendto_variant_addrlen(sock_fd, srv, addrlen, buf, len, flags);
tools/testing/selftests/landlock/net_test.c-348-}
--
tools/testing/selftests/landlock/net_test.c=350=static int test_sendmsg(struct __test_metadata *const _metadata,
--
tools/testing/selftests/landlock/net_test.c-382-	if (srv != NULL) {
tools/testing/selftests/landlock/net_test.c:383:		ret = sendto_variant_addrlen(
tools/testing/selftests/landlock/net_test.c-384-			client_fd, srv, get_addrlen(srv, true) - 1, "A", 1, 0);
--
tools/testing/selftests/landlock/net_test.c-403-	/* With or without explicit destination address (srv can be NULL). */
tools/testing/selftests/landlock/net_test.c:404:	ret = sendto_variant(client_fd, srv, "B", 1, 0);
tools/testing/selftests/landlock/net_test.c-405-	if (sock_type == SOCK_STREAM && !has_remote_port) {
--
tools/testing/selftests/landlock/net_test.c=1284=TEST_F(protocol, tcp_fastopen)
--
tools/testing/selftests/landlock/net_test.c-1325-		/* Fast Open with no address. */
tools/testing/selftests/landlock/net_test.c:1326:		ret = sendto_variant(connect_fd, NULL, NULL, 0, MSG_FASTOPEN);
tools/testing/selftests/landlock/net_test.c-1327-		if (self->srv0.protocol.domain == AF_UNIX) {
--
tools/testing/selftests/landlock/net_test.c-1335-		/* Fast Open to a denied address. */
tools/testing/selftests/landlock/net_test.c:1336:		ret = sendto_variant(connect_fd, &self->srv0, "A", 1,
tools/testing/selftests/landlock/net_test.c-1337-				     MSG_FASTOPEN);
--
tools/testing/selftests/landlock/net_test.c=1381=TEST_F(protocol, sendmsg_stream)
--
tools/testing/selftests/landlock/net_test.c-1412-	/* Send on a non-connected socket. */
tools/testing/selftests/landlock/net_test.c:1413:	res = sendto_variant(client_fd, NULL, "A", 1, 0);
tools/testing/selftests/landlock/net_test.c-1414-	if (variant->prot.domain == AF_UNIX) {
--
tools/testing/selftests/landlock/net_test.c-1420-	/* Send to a truncated (invalid) address on a non-connected socket. */
tools/testing/selftests/landlock/net_test.c:1421:	res = sendto_variant_addrlen(client_fd, &self->srv0,
tools/testing/selftests/landlock/net_test.c-1422-				     get_addrlen(&self->srv0, true) - 1, "B", 1,
--
tools/testing/selftests/landlock/net_test.c-1437-	/* Send without an explicit address. */
tools/testing/selftests/landlock/net_test.c:1438:	EXPECT_EQ(0, sendto_variant(client_fd, NULL, "C", 1, 0));
tools/testing/selftests/landlock/net_test.c-1439-	EXPECT_EQ(1, recv(srv0_fd, read_buf, 1, 0))
--
tools/testing/selftests/landlock/net_test.c-1445-	/* Send to a truncated (invalid) address. */
tools/testing/selftests/landlock/net_test.c:1446:	res = sendto_variant_addrlen(client_fd, &self->srv0,
tools/testing/selftests/landlock/net_test.c-1447-				     get_addrlen(&self->srv0, true) - 1, "D", 1,
--
tools/testing/selftests/landlock/net_test.c-1460-	/* Send to a valid but different address. */
tools/testing/selftests/landlock/net_test.c:1461:	res = sendto_variant(client_fd, &self->srv1, "E", 1, 0);
tools/testing/selftests/landlock/net_test.c-1462-	if (variant->prot.domain == AF_UNIX) {
--
tools/testing/selftests/landlock/net_test.c=1680=TEST_F(protocol, sendmsg_unspec)
--
tools/testing/selftests/landlock/net_test.c-1724-	/* Explicit AF_UNSPEC address but truncated. */
tools/testing/selftests/landlock/net_test.c:1725:	EXPECT_EQ(-EINVAL, sendto_variant_addrlen(
tools/testing/selftests/landlock/net_test.c-1726-				   client_fd, &self->unspec_srv0,
--
tools/testing/selftests/landlock/net_test.c-1734-	 */
tools/testing/selftests/landlock/net_test.c:1735:	res = sendto_variant(client_fd, &self->unspec_srv0, "B", 1, 0);
tools/testing/selftests/landlock/net_test.c-1736-	if (variant->prot.domain == AF_INET6) {
--
tools/testing/selftests/landlock/net_test.c-1760-	 */
tools/testing/selftests/landlock/net_test.c:1761:	res = sendto_variant(client_fd, &self->unspec_srv1, "C", 1, 0);
tools/testing/selftests/landlock/net_test.c-1762-	if (variant->prot.domain == AF_INET6) {
--
tools/testing/selftests/landlock/net_test.c-1789-	/* Minimal explicit AF_UNSPEC address (just the sa_family_t field) */
tools/testing/selftests/landlock/net_test.c:1790:	res = sendto_variant_addrlen(client_fd, &self->unspec_srv0,
tools/testing/selftests/landlock/net_test.c-1791-				     get_addrlen(&self->unspec_srv0, true), "D",
--
tools/testing/selftests/landlock/net_test.c=3232=TEST_F(audit, sendmsg)
--
tools/testing/selftests/landlock/net_test.c-3259-	ASSERT_LE(0, sock_fd);
tools/testing/selftests/landlock/net_test.c:3260:	EXPECT_EQ(-EACCES, sendto_variant(sock_fd, &self->srv0, "A", 1, 0));
tools/testing/selftests/landlock/net_test.c-3261-	EXPECT_EQ(0, matches_auditlog(self->audit_fd, "net\\.connect_send_udp",
--
tools/testing/selftests/landlock/net_test.c-3269-	/* Check that autobind generates a denied bind event. */
tools/testing/selftests/landlock/net_test.c:3270:	EXPECT_EQ(-EACCES, sendto_variant(sock_fd, &self->srv1, "A", 1, 0));
tools/testing/selftests/landlock/net_test.c-3271-	EXPECT_EQ(0, matches_auditlog(self->audit_fd, "net\\.bind_udp", NULL,
--
tools/testing/selftests/landlock/net_test.c-3277-	EXPECT_EQ(-EACCES,
tools/testing/selftests/landlock/net_test.c:3278:		  sendto_variant(sock_fd, &self->unspec_srv0, "B", 1, 0));
tools/testing/selftests/landlock/net_test.c-3279-	EXPECT_EQ(0, matches_auditlog(self->audit_fd, "net\\.connect_send_udp",
--
tools/testing/selftests/landlock/scoped_abstract_unix_test.c=839=TEST_F(various_address_sockets, scoped_pathname_sockets)
--
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-906-		ASSERT_LE(0, dgram_pathname_socket);
tools/testing/selftests/landlock/scoped_abstract_unix_test.c:907:		err = sendto(dgram_pathname_socket, "c", 1, 0,
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-908-			     &dgram_pathname_addr, sizeof(dgram_pathname_addr));
--
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-935-		ASSERT_LE(0, dgram_abstract_socket);
tools/testing/selftests/landlock/scoped_abstract_unix_test.c:936:		err = sendto(dgram_abstract_socket, "f", 1, 0,
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-937-			     &dgram_abstract_addr.unix_addr,
--
tools/testing/selftests/landlock/scoped_abstract_unix_test.c=1041=TEST(datagram_sockets)
--
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-1082-		ASSERT_EQ(1, send(client_conn_socket, ".", 1, 0));
tools/testing/selftests/landlock/scoped_abstract_unix_test.c:1083:		ASSERT_EQ(1, sendto(client_unconn_socket, ".", 1, 0,
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-1084-				    &non_connected_addr.unix_addr,
--
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-1096-		ASSERT_EQ(1, send(client_conn_socket, ".", 1, 0));
tools/testing/selftests/landlock/scoped_abstract_unix_test.c:1097:		ASSERT_EQ(-1, sendto(client_unconn_socket, ".", 1, 0,
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-1098-				     &non_connected_addr.unix_addr,
--
tools/testing/selftests/landlock/scoped_abstract_unix_test.c=1144=TEST(self_connect)
--
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-1181-
tools/testing/selftests/landlock/scoped_abstract_unix_test.c:1182:		ASSERT_EQ(-1, sendto(connected_socket, ".", 1, 0,
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-1183-				     &connected_addr.unix_addr,
--
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-1186-
tools/testing/selftests/landlock/scoped_abstract_unix_test.c:1187:		ASSERT_EQ(-1, sendto(non_connected_socket, ".", 1, 0,
tools/testing/selftests/landlock/scoped_abstract_unix_test.c-1188-				     &non_connected_addr.unix_addr,
--
tools/testing/selftests/nci/nci_dev.c=111=static int send_cmd_mt_nla(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
--
tools/testing/selftests/nci/nci_dev.c-147-
tools/testing/selftests/nci/nci_dev.c:148:	while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *)&nladdr,
tools/testing/selftests/nci/nci_dev.c-149-			   sizeof(nladdr))) < buflen) {
--
tools/testing/selftests/net/.gitignore=36=sctp_hello
tools/testing/selftests/net/.gitignore:37:sk_bind_sendto_listen

]

788/7 2026/08/15 19:33 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 63945
							output: 32
							thoughts: 82
						

Thoughts:
**My Thought Process on Netlink Message Transmission**

As someone deeply immersed in this domain, my immediate inclination is to understand the practical mechanics of how we're transmitting netlink messages. My thinking naturally leads me to scrutinize the existing codebase for established patterns. Specifically, I'm going to focus on the `tools/testing/selftests/bpf/netlink_helpers.c` file, as it's highly probable that helper functions for netlink operations, including sending, would reside there.

In parallel, or perhaps as a follow-up to that initial check, I want to locate the actual API calls responsible for the low-level socket communication. My intuition is to search within `tools/lib/bpf/netlink.c` or the aforementioned `netlink_helpers.c` for the standard socket sending functions: `send()`, `sendto()`, and `sendmsg()`. This will allow me to see the concrete implementation details and how the netlink message structures are being marshaled and delivered over the socket. By examining these points, I'm aiming to gain a clear, hands-on understanding of our current netlink sending mechanisms.


789/7 2026/08/15 19:33 tool grepper
0m Args:
map[Expression:send\(|sendto\(|sendmsg\( PathPrefix:tools/]

Results:
map[Output:
Full output is too long, showing 500 out of 3248 lines.
Use more precise expression if possible.

tools/accounting/delaytop.c=419=static int send_cmd(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
--
tools/accounting/delaytop.c-450-	nladdr.nl_family = AF_NETLINK;
tools/accounting/delaytop.c:451:	while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *) &nladdr,
tools/accounting/delaytop.c-452-					sizeof(nladdr))) < buflen) {
--
tools/accounting/getdelays.c=145=static int send_cmd(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
--
tools/accounting/getdelays.c-172-	nladdr.nl_family = AF_NETLINK;
tools/accounting/getdelays.c:173:	while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *) &nladdr,
tools/accounting/getdelays.c-174-			   sizeof(nladdr))) < buflen) {
--
tools/accounting/getdelays.c=189=static int get_family_id(int sd)
--
tools/accounting/getdelays.c-205-	if (rc < 0)
tools/accounting/getdelays.c:206:		return 0;	/* sendto() failure? */
tools/accounting/getdelays.c-207-
--
tools/accounting/procacct.c=151=static int send_cmd(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
--
tools/accounting/procacct.c-178-	nladdr.nl_family = AF_NETLINK;
tools/accounting/procacct.c:179:	while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *) &nladdr,
tools/accounting/procacct.c-180-			   sizeof(nladdr))) < buflen) {
--
tools/accounting/procacct.c=195=static int get_family_id(int sd)
--
tools/accounting/procacct.c-211-	if (rc < 0)
tools/accounting/procacct.c:212:		return 0;	/* sendto() failure? */
tools/accounting/procacct.c-213-
--
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst=74=bpftool cgroup attach *CGROUP* *ATTACH_TYPE* *PROG* [*ATTACH_FLAGS*]
--
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst-106-    - **connect_unix** call to connect(2) for a unix socket (since 6.7)
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst:107:    - **sendmsg4** call to sendto(2), sendmsg(2), sendmmsg(2) for an unconnected udp4 socket (since 4.18)
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst:108:    - **sendmsg6** call to sendto(2), sendmsg(2), sendmmsg(2) for an unconnected udp6 socket (since 4.18)
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst:109:    - **sendmsg_unix** call to sendto(2), sendmsg(2), sendmmsg(2) for an unconnected unix socket (since 6.7)
tools/bpf/bpftool/Documentation/bpftool-cgroup.rst-110-    - **recvmsg4** call to recvfrom(2), recvmsg(2), recvmmsg(2) for an unconnected udp4 socket (since 5.2)
--
tools/bpf/bpftool/net.c=229=static int netlink_get_class(int sock, unsigned int nl_pid, int ifindex,
--
tools/bpf/bpftool/net.c-244-	req.nlh.nlmsg_seq = seq;
tools/bpf/bpftool/net.c:245:	if (send(sock, &req, req.nlh.nlmsg_len, 0) < 0)
tools/bpf/bpftool/net.c-246-		return -errno;
--
tools/bpf/bpftool/net.c=268=static int netlink_get_qdisc(int sock, unsigned int nl_pid, int ifindex,
--
tools/bpf/bpftool/net.c-283-	req.nlh.nlmsg_seq = seq;
tools/bpf/bpftool/net.c:284:	if (send(sock, &req, req.nlh.nlmsg_len, 0) < 0)
tools/bpf/bpftool/net.c-285-		return -errno;
--
tools/bpf/bpftool/net.c=307=static int netlink_get_filter(int sock, unsigned int nl_pid, int ifindex, int handle,
--
tools/bpf/bpftool/net.c-323-	req.nlh.nlmsg_seq = seq;
tools/bpf/bpftool/net.c:324:	if (send(sock, &req, req.nlh.nlmsg_len, 0) < 0)
tools/bpf/bpftool/net.c-325-		return -errno;
--
tools/bpf/bpftool/net.c=346=static int netlink_get_link(int sock, unsigned int nl_pid,
--
tools/bpf/bpftool/net.c-360-	req.nlh.nlmsg_seq = seq;
tools/bpf/bpftool/net.c:361:	if (send(sock, &req, req.nlh.nlmsg_len, 0) < 0)
tools/bpf/bpftool/net.c-362-		return -errno;
--
tools/hv/hv_fcopy_uio_daemon.c=385=static int fcopy_pkt_process(struct vmbus_br *txbr)
--
tools/hv/hv_fcopy_uio_daemon.c-419-	icmsghdr->icflags = ICMSGHDRFLAG_TRANSACTION | ICMSGHDRFLAG_RESPONSE;
tools/hv/hv_fcopy_uio_daemon.c:420:	ret = rte_vmbus_chan_send(txbr, 0x6, desc + offset, pktlen, 0);
tools/hv/hv_fcopy_uio_daemon.c-421-	if (ret) {
--
tools/hv/vmbus_bufring.c=120=vmbus_txbr_write(struct vmbus_br *tbr, const struct iovec iov[], int iovlen)
--
tools/hv/vmbus_bufring.c-177-
tools/hv/vmbus_bufring.c:178:int rte_vmbus_chan_send(struct vmbus_br *txbr, uint16_t type, void *data,
tools/hv/vmbus_bufring.c-179-			uint32_t dlen, uint32_t flags)
--
tools/hv/vmbus_bufring.h=136=int rte_vmbus_chan_recv_raw(struct vmbus_br *rxbr, void *data, uint32_t *len);
tools/hv/vmbus_bufring.h:137:int rte_vmbus_chan_send(struct vmbus_br *txbr, uint16_t type, void *data,
tools/hv/vmbus_bufring.h-138-			uint32_t dlen, uint32_t flags);
--
tools/include/io_uring/mini_liburing.h=276=static inline int io_uring_register_buffers(struct io_uring *ring,
--
tools/include/io_uring/mini_liburing.h-286-
tools/include/io_uring/mini_liburing.h:287:static inline void io_uring_prep_send(struct io_uring_sqe *sqe, int sockfd,
tools/include/io_uring/mini_liburing.h-288-				      const void *buf, size_t len, int flags)
--
tools/include/io_uring/mini_liburing.h=298=static inline void io_uring_prep_sendzc(struct io_uring_sqe *sqe, int sockfd,
--
tools/include/io_uring/mini_liburing.h-301-{
tools/include/io_uring/mini_liburing.h:302:	io_uring_prep_send(sqe, sockfd, buf, len, flags);
tools/include/io_uring/mini_liburing.h-303-	sqe->opcode = (__u8)IORING_OP_SEND_ZC;
--
tools/include/uapi/linux/if_xdp.h-21- * set. If it is set, the application need to explicitly wake up the
tools/include/uapi/linux/if_xdp.h:22: * driver with a poll() (Rx and Tx) or sendto() (Tx only). If you are
tools/include/uapi/linux/if_xdp.h-23- * running the driver and the application on the same core, you should
--
tools/lib/bpf/netlink.c=224=static int libbpf_netlink_send_recv(struct libbpf_nla_req *req,
--
tools/lib/bpf/netlink.c-238-
tools/lib/bpf/netlink.c:239:	if (send(sock, req, req->nh.nlmsg_len, 0) < 0) {
tools/lib/bpf/netlink.c-240-		ret = -errno;
--
tools/net/ynl/lib/ynl.c=700=static int ynl_sock_read_family(struct ynl_sock *ys, const char *family_name)
--
tools/net/ynl/lib/ynl.c-712-
tools/net/ynl/lib/ynl.c:713:	err = send(ys->socket, nlh, nlh->nlmsg_len, 0);
tools/net/ynl/lib/ynl.c-714-	if (err < 0) {
--
tools/net/ynl/lib/ynl.c=986=int ynl_exec(struct ynl_sock *ys, struct nlmsghdr *req_nlh,
--
tools/net/ynl/lib/ynl.c-994-
tools/net/ynl/lib/ynl.c:995:	err = send(ys->socket, req_nlh, req_nlh->nlmsg_len, 0);
tools/net/ynl/lib/ynl.c-996-	if (err < 0)
--
tools/net/ynl/lib/ynl.c=1043=int ynl_exec_dump(struct ynl_sock *ys, struct nlmsghdr *req_nlh,
--
tools/net/ynl/lib/ynl.c-1051-
tools/net/ynl/lib/ynl.c:1052:	err = send(ys->socket, req_nlh, req_nlh->nlmsg_len, 0);
tools/net/ynl/lib/ynl.c-1053-	if (err < 0)
--
tools/net/ynl/pyynl/lib/ynl.py=461=def _genl_load_families():
--
tools/net/ynl/pyynl/lib/ynl.py-471-
tools/net/ynl/pyynl/lib/ynl.py:472:        sock.send(msg, 0)
tools/net/ynl/pyynl/lib/ynl.py-473-
--
tools/net/ynl/pyynl/lib/ynl.py=509=def _genl_policy_dump(family_id, op):
--
tools/net/ynl/pyynl/lib/ynl.py-522-
tools/net/ynl/pyynl/lib/ynl.py:523:        sock.send(msg, 0)
tools/net/ynl/pyynl/lib/ynl.py-524-
--
tools/net/ynl/pyynl/lib/ynl.py=660=class YnlFamily(SpecFamily):
--
tools/net/ynl/pyynl/lib/ynl.py-1362-
tools/net/ynl/pyynl/lib/ynl.py:1363:        self.sock.send(payload, 0)
tools/net/ynl/pyynl/lib/ynl.py-1364-
--
tools/perf/tests/builtin-test.c=1550=static int perf_control_read_ack(int fd)
--
tools/perf/tests/builtin-test.c-1584-
tools/perf/tests/builtin-test.c:1585:static int perf_control_send(struct workload_control *ctl, const char *cmd)
tools/perf/tests/builtin-test.c-1586-{
--
tools/perf/tests/builtin-test.c=1599=static int run_workload(const char *work, int argc, const char **argv)
--
tools/perf/tests/builtin-test.c-1616-
tools/perf/tests/builtin-test.c:1617:		if (perf_control_send(&ctl, "enable\n")) {
tools/perf/tests/builtin-test.c-1618-			perf_control_close(&ctl);
--
tools/perf/tests/builtin-test.c-1623-
tools/perf/tests/builtin-test.c:1624:		control_ret = perf_control_send(&ctl, "disable\n");
tools/perf/tests/builtin-test.c-1625-		perf_control_close(&ctl);
--
tools/perf/trace/beauty/include/linux/socket.h=197=struct ucred {
--
tools/perf/trace/beauty/include/linux/socket.h-345-#define MSG_ZEROCOPY	0x4000000	/* Use user data in kernel path */
tools/perf/trace/beauty/include/linux/socket.h:346:#define MSG_SPLICE_PAGES 0x8000000	/* Splice the pages from the iterator in sendmsg() */
tools/perf/trace/beauty/include/linux/socket.h-347-#define MSG_FASTOPEN	0x20000000	/* Send data in TCP SYN */
--
tools/perf/trace/beauty/include/linux/socket.h=426=extern long __sys_recvmsg(int fd, struct user_msghdr __user *msg,
tools/perf/trace/beauty/include/linux/socket.h-427-			  unsigned int flags, bool forbid_cmsg_compat);
tools/perf/trace/beauty/include/linux/socket.h:428:extern long __sys_sendmsg(int fd, struct user_msghdr __user *msg,
tools/perf/trace/beauty/include/linux/socket.h-429-			  unsigned int flags, bool forbid_cmsg_compat);
--
tools/perf/trace/beauty/include/linux/socket.h=448=extern int __sys_recvfrom(int fd, void __user *ubuf, size_t size,
--
tools/perf/trace/beauty/include/linux/socket.h-450-			  int __user *addr_len);
tools/perf/trace/beauty/include/linux/socket.h:451:extern int __sys_sendto(int fd, void __user *buff, size_t len,
tools/perf/trace/beauty/include/linux/socket.h-452-			unsigned int flags, struct sockaddr __user *addr,
--
tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c=227=SEC("tp/syscalls/sys_enter_sendto")
tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c:228:int sys_enter_sendto(struct syscall_enter_args *args)
tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c-229-{
--
tools/testing/cxl/test/mem.c=1516=static int mock_get_supported_features(struct cxl_mockmem_data *mdata,
--
tools/testing/cxl/test/mem.c-1557-
tools/testing/cxl/test/mem.c:1558:static int cxl_mock_mbox_send(struct cxl_mailbox *cxl_mbox,
tools/testing/cxl/test/mem.c-1559-			      struct cxl_mbox_cmd *cmd)
--
tools/testing/selftests/acct/taskstats_fill_stats_tgid.c=109=static int send_request(int fd, void *buf, size_t len)
--
tools/testing/selftests/acct/taskstats_fill_stats_tgid.c-114-
tools/testing/selftests/acct/taskstats_fill_stats_tgid.c:115:	if (sendto(fd, buf, len, 0, (struct sockaddr *)&addr, sizeof(addr)) < 0)
tools/testing/selftests/acct/taskstats_fill_stats_tgid.c-116-		return -errno;
--
tools/testing/selftests/bpf/benchs/bench_sockmap.c=18=static const char snd_data[DATA_REPEAT_SIZE] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
--
tools/testing/selftests/bpf/benchs/bench_sockmap.c-22- *	ARG_FW_RX_PASS:
tools/testing/selftests/bpf/benchs/bench_sockmap.c:23: *		send(p2) -> recv(c2) -> bpf skb passthrough -> recv(c2)
tools/testing/selftests/bpf/benchs/bench_sockmap.c-24- *	ARG_FW_RX_VERDICT_EGRESS:
tools/testing/selftests/bpf/benchs/bench_sockmap.c:25: *		send(c1) -> verdict skb to tx queuec of p2 -> recv(c2)
tools/testing/selftests/bpf/benchs/bench_sockmap.c-26- *	ARG_FW_RX_VERDICT_INGRESS:
tools/testing/selftests/bpf/benchs/bench_sockmap.c:27: *		send(c1) -> verdict skb to rx queuec of c2 -> recv(c2)
tools/testing/selftests/bpf/benchs/bench_sockmap.c-28- *
--
tools/testing/selftests/bpf/benchs/bench_sockmap.c-30- *	ARG_FW_TX_PASS:
tools/testing/selftests/bpf/benchs/bench_sockmap.c:31: *		send(p2) -> bpf msg passthrough -> send(p2) -> recv(c2)
tools/testing/selftests/bpf/benchs/bench_sockmap.c-32- *	ARG_FW_TX_VERDICT_INGRESS:
tools/testing/selftests/bpf/benchs/bench_sockmap.c:33: *		send(p2) -> verdict msg to rx queue of c2 -> recv(c2)
tools/testing/selftests/bpf/benchs/bench_sockmap.c-34- *	ARG_FW_TX_VERDICT_EGRESS:
tools/testing/selftests/bpf/benchs/bench_sockmap.c:35: *		send(p1) -> verdict msg to tx queue of p2 -> recv(c2)
tools/testing/selftests/bpf/benchs/bench_sockmap.c-36- */
--
tools/testing/selftests/bpf/benchs/bench_sockmap.c=382=static void *consumer(void *input)
--
tools/testing/selftests/bpf/benchs/bench_sockmap.c-407-
tools/testing/selftests/bpf/benchs/bench_sockmap.c:408:			sent = send(ctx.p2, buf, recv_buf_size, 0);
tools/testing/selftests/bpf/benchs/bench_sockmap.c-409-			if (sent < 0) {
--
tools/testing/selftests/bpf/netlink_helpers.c=148=static int __rtnl_talk_iov(struct rtnl_handle *rtnl, struct iovec *iov,
--
tools/testing/selftests/bpf/netlink_helpers.c-170-	}
tools/testing/selftests/bpf/netlink_helpers.c:171:	status = sendmsg(rtnl->fd, &msg, 0);
tools/testing/selftests/bpf/netlink_helpers.c-172-	if (status < 0) {
--
tools/testing/selftests/bpf/network_helpers.c=229=int fastopen_connect(int server_fd, const char *data, unsigned int data_len,
--
tools/testing/selftests/bpf/network_helpers.c-251-
tools/testing/selftests/bpf/network_helpers.c:252:	ret = sendto(fd, data, data_len, MSG_FASTOPEN, (struct sockaddr *)&addr,
tools/testing/selftests/bpf/network_helpers.c-253-		     addrlen);
tools/testing/selftests/bpf/network_helpers.c-254-	if (ret != data_len) {
tools/testing/selftests/bpf/network_helpers.c:255:		log_err("sendto(data, %u) != %d\n", data_len, ret);
tools/testing/selftests/bpf/network_helpers.c-256-		goto error_close;
--
tools/testing/selftests/bpf/network_helpers.c=678=static void *send_recv_server(void *arg)
--
tools/testing/selftests/bpf/network_helpers.c-698-	while (bytes < a->bytes && !READ_ONCE(a->stop)) {
tools/testing/selftests/bpf/network_helpers.c:699:		nr_sent = send(fd, &batch,
tools/testing/selftests/bpf/network_helpers.c-700-			       MIN(a->bytes - bytes, sizeof(batch)), 0);
--
tools/testing/selftests/bpf/prog_tests/assign_reuse.c=35=static int echo_test_udp(int fd_sv)
--
tools/testing/selftests/bpf/prog_tests/assign_reuse.c-45-
tools/testing/selftests/bpf/prog_tests/assign_reuse.c:46:	ASSERT_EQ(send(fd_cl, buff, sizeof(buff), 0), 1, "send_client");
tools/testing/selftests/bpf/prog_tests/assign_reuse.c-47-
--
tools/testing/selftests/bpf/prog_tests/assign_reuse.c-54-	ASSERT_EQ(ret, 1, "recv_server");
tools/testing/selftests/bpf/prog_tests/assign_reuse.c:55:	ASSERT_EQ(sendto(fd_sv, buff, sizeof(buff), 0, (void *)&addr, len), 1, "send_server");
tools/testing/selftests/bpf/prog_tests/assign_reuse.c-56-	ASSERT_EQ(recv(fd_cl, buff, sizeof(buff), 0), 1, "recv_client");
--
tools/testing/selftests/bpf/prog_tests/assign_reuse.c=61=static int echo_test_tcp(int fd_sv)
--
tools/testing/selftests/bpf/prog_tests/assign_reuse.c-72-
tools/testing/selftests/bpf/prog_tests/assign_reuse.c:73:	ASSERT_EQ(send(fd_cl, buff, sizeof(buff), 0), 1, "send_client");
tools/testing/selftests/bpf/prog_tests/assign_reuse.c-74-	ASSERT_EQ(recv(fd_sv_cl, buff, sizeof(buff), 0), 1, "recv_server");
tools/testing/selftests/bpf/prog_tests/assign_reuse.c:75:	ASSERT_EQ(send(fd_sv_cl, buff, sizeof(buff), 0), 1, "send_server");
tools/testing/selftests/bpf/prog_tests/assign_reuse.c-76-	ASSERT_EQ(recv(fd_cl, buff, sizeof(buff), 0), 1, "recv_client");
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c=40=static bool assert_storage_noexist(struct bpf_map *map, const void *key)
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-56-
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c:57:static bool connect_send(const char *cgroup_path)
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-58-{
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-73-
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c:74:	if (send(client_fd, &message, sizeof(message), 0) < 0)
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-75-		goto out_clean;
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c=88=static void test_egress_only(int parent_cgroup_fd, int child_cgroup_fd)
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-110-		goto close_bpf_object;
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c:111:	err = connect_send(CHILD_CGROUP);
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-112-	if (CHECK(err, "first-connect-send", "errno %d", errno))
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-133-		goto close_bpf_object;
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c:134:	err = connect_send(CHILD_CGROUP);
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-135-	if (CHECK(err, "second-connect-send", "errno %d", errno))
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c=158=static void test_isolated(int parent_cgroup_fd, int child_cgroup_fd)
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-188-		goto close_bpf_object;
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c:189:	err = connect_send(CHILD_CGROUP);
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-190-	if (CHECK(err, "first-connect-send", "errno %d", errno))
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-230-		goto close_bpf_object;
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c:231:	err = connect_send(CHILD_CGROUP);
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-232-	if (CHECK(err, "second-connect-send", "errno %d", errno))
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c=271=static void test_shared(int parent_cgroup_fd, int child_cgroup_fd)
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-301-		goto close_bpf_object;
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c:302:	err = connect_send(CHILD_CGROUP);
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-303-	if (CHECK(err, "first-connect-send", "errno %d", errno))
--
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-335-		goto close_bpf_object;
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c:336:	err = connect_send(CHILD_CGROUP);
tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c-337-	if (CHECK(err, "second-connect-send", "errno %d", errno))
--
tools/testing/selftests/bpf/prog_tests/cgroup_ancestor.c=23=static int send_datagram(void)
--
tools/testing/selftests/bpf/prog_tests/cgroup_ancestor.c-42-
tools/testing/selftests/bpf/prog_tests/cgroup_ancestor.c:43:	n = sendto(sock, buf, sizeof(buf), 0, (const struct sockaddr *)&addr,
tools/testing/selftests/bpf/prog_tests/cgroup_ancestor.c-44-		   sizeof(addr));
--
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c=49=static void do_crypt_afalg(const void *src, void *dst, int size, bool encrypt)
--
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c-70-
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c:71:	sendmsg(opfd, &msg, 0);
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c-72-	read(opfd, dst, size);
--
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c=80=void test_crypto_sanity(void)
--
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c-149-		goto fail;
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c:150:	err = sendto(sockfd, plain_text, sizeof(plain_text), 0, (void *)&addr, addrlen);
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c-151-	close(sockfd);
--
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c-174-		goto fail;
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c:175:	err = sendto(sockfd, afalg_dst, sizeof(afalg_dst), 0, (void *)&addr, addrlen);
tools/testing/selftests/bpf/prog_tests/crypto_sanity.c-176-	close(sockfd);
--
tools/testing/selftests/bpf/prog_tests/decap_sanity.c=16=void test_decap_sanity(void)
--
tools/testing/selftests/bpf/prog_tests/decap_sanity.c-59-		goto fail;
tools/testing/selftests/bpf/prog_tests/decap_sanity.c:60:	err = sendto(sockfd, buf, sizeof(buf), 0, (void *)&addr, addrlen);
tools/testing/selftests/bpf/prog_tests/decap_sanity.c-61-	close(sockfd);
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c=104=static int send_frags(int client)
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-115-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:116:	err = sendto(client, frag_0, sizeof(frag_0), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-117-	if (!ASSERT_GE(err, 0, "sendto frag_0"))
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-119-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:120:	err = sendto(client, frag_1, sizeof(frag_1), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-121-	if (!ASSERT_GE(err, 0, "sendto frag_1"))
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-123-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:124:	err = sendto(client, frag_2, sizeof(frag_2), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-125-	if (!ASSERT_GE(err, 0, "sendto frag_2"))
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c=131=static int send_frags6(int client)
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-143-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:144:	err = sendto(client, frag6_0, sizeof(frag6_0), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-145-	if (!ASSERT_GE(err, 0, "sendto frag6_0"))
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-147-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:148:	err = sendto(client, frag6_1, sizeof(frag6_1), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-149-	if (!ASSERT_GE(err, 0, "sendto frag6_1"))
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-151-
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:152:	err = sendto(client, frag6_2, sizeof(frag6_2), 0, saddr_p, saddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-153-	if (!ASSERT_GE(err, 0, "sendto frag6_2"))
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c=159=void test_bpf_ip_check_defrag_ok(bool ipv6)
--
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-256-		goto out;
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c:257:	len = sendto(srv_fd, buf, len, 0, (struct sockaddr *)&caddr, caddr_len);
tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c-258-	if (!ASSERT_GE(len, 0, "server sendto"))
--
tools/testing/selftests/bpf/prog_tests/lwt_ip_encap.c=349=static int test_gso_fix(const char *ns1, const char *ns3, int family)
--
tools/testing/selftests/bpf/prog_tests/lwt_ip_encap.c-386-	/* Send a packet larger than MTU */
tools/testing/selftests/bpf/prog_tests/lwt_ip_encap.c:387:	bytes = send(cfd, gso_packet, GSO_SIZE, 0);
tools/testing/selftests/bpf/prog_tests/lwt_ip_encap.c-388-	if (!ASSERT_EQ(bytes, GSO_SIZE, "send packet"))
--
tools/testing/selftests/bpf/prog_tests/lwt_reroute.c=75=static int overflow_fq(int snd_target, const char *target_ip)
--
tools/testing/selftests/bpf/prog_tests/lwt_reroute.c-137-		 */
tools/testing/selftests/bpf/prog_tests/lwt_reroute.c:138:		sendmsg(s, &msg, MSG_NOSIGNAL);
tools/testing/selftests/bpf/prog_tests/lwt_reroute.c-139-		snd_target--;
--
tools/testing/selftests/bpf/prog_tests/lwt_seg6local.c=114=void test_lwt_seg6local(void)
--
tools/testing/selftests/bpf/prog_tests/lwt_seg6local.c-155-
tools/testing/selftests/bpf/prog_tests/lwt_seg6local.c:156:	bytes = sendto(cfd, foobar, sizeof(foobar), 0,
tools/testing/selftests/bpf/prog_tests/lwt_seg6local.c-157-		       (struct sockaddr *)&server_addr, sizeof(server_addr));
--
tools/testing/selftests/bpf/prog_tests/mptcp.c=442=static void test_sockmap_with_mptcp_fallback(struct mptcp_sockmap *skel)
--
tools/testing/selftests/bpf/prog_tests/mptcp.c-471-	skel->bss->redirect_idx = 1;
tools/testing/selftests/bpf/prog_tests/mptcp.c:472:	sent = send(client_fd1, snd, sizeof(snd), 0);
tools/testing/selftests/bpf/prog_tests/mptcp.c:473:	if (!ASSERT_EQ(sent, sizeof(snd), "sockmap-fb:send(client_fd1)"))
tools/testing/selftests/bpf/prog_tests/mptcp.c-474-		goto end;
--
tools/testing/selftests/bpf/prog_tests/netns_cookie.c=15=void test_netns_cookie(void)
--
tools/testing/selftests/bpf/prog_tests/netns_cookie.c-62-
tools/testing/selftests/bpf/prog_tests/netns_cookie.c:63:	ret = send(client_fd, send_msg, sizeof(send_msg), 0);
tools/testing/selftests/bpf/prog_tests/netns_cookie.c:64:	if (CHECK(ret != sizeof(send_msg), "send(msg)", "ret:%d\n", ret))
tools/testing/selftests/bpf/prog_tests/netns_cookie.c-65-		goto cleanup_tc;
--
tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c=122=static int test_current_pid_tgid_sk_msg(void *args)
--
tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c-162-
tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c:163:	err = send(client_fd, send_msg, sizeof(send_msg), 0);
tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c:164:	if (!ASSERT_EQ(err, sizeof(send_msg), "send(msg)"))
tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c-165-		goto cleanup;
--
tools/testing/selftests/bpf/prog_tests/select_reuseport.c=366=static int send_data(int type, sa_family_t family, void *data, size_t len,
--
tools/testing/selftests/bpf/prog_tests/select_reuseport.c-377-	RET_ERR(fd == -1, "bind(cli_sa)", "err:%d errno:%d\n", err, errno);
tools/testing/selftests/bpf/prog_tests/select_reuseport.c:378:	err = sendto(fd, data, len, MSG_FASTOPEN, (struct sockaddr *)&srv_sa,
tools/testing/selftests/bpf/prog_tests/select_reuseport.c-379-		     sizeof(srv_sa));
tools/testing/selftests/bpf/prog_tests/select_reuseport.c-380-	RET_ERR(err != len && expected >= PASS,
tools/testing/selftests/bpf/prog_tests/select_reuseport.c:381:		"sendto()", "family:%u err:%d errno:%d expected:%d\n",
tools/testing/selftests/bpf/prog_tests/select_reuseport.c-382-		family, err, errno, expected);
--
tools/testing/selftests/bpf/prog_tests/sk_bypass_prot_mem.c=127=static int check_bypass(struct test_case *test_case,
--
tools/testing/selftests/bpf/prog_tests/sk_bypass_prot_mem.c-146-		for (j = 0; j < NR_SEND; j++) {
tools/testing/selftests/bpf/prog_tests/sk_bypass_prot_mem.c:147:			int bytes = send(sk[i], buf, sizeof(buf), 0);
tools/testing/selftests/bpf/prog_tests/sk_bypass_prot_mem.c-148-
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c=231=static int send_byte(int fd)
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-235-	errno = 0;
tools/testing/selftests/bpf/prog_tests/sk_lookup.c:236:	n = send(fd, "a", 1, 0);
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-237-	if (CHECK(n <= 0, "send_byte", "send")) {
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c=244=static int recv_byte(int fd)
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-256-
tools/testing/selftests/bpf/prog_tests/sk_lookup.c:257:static int tcp_recv_send(int server_fd)
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-258-{
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-275-
tools/testing/selftests/bpf/prog_tests/sk_lookup.c:276:	n = send(fd, buf, n, 0);
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-277-	if (CHECK(n <= 0, "send", "failed\n")) {
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c=289=static void v4_to_v6(struct sockaddr_storage *ss)
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-301-
tools/testing/selftests/bpf/prog_tests/sk_lookup.c:302:static int udp_recv_send(int server_fd)
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-303-{
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-362-	msg.msg_controllen = 0;
tools/testing/selftests/bpf/prog_tests/sk_lookup.c:363:	n = sendmsg(fd, &msg, 0);
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-364-	if (CHECK(n <= 0, "sendmsg", "failed\n")) {
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c=376=static int tcp_echo_test(int client_fd, int server_fd)
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-382-		return -1;
tools/testing/selftests/bpf/prog_tests/sk_lookup.c:383:	err = tcp_recv_send(server_fd);
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-384-	if (err)
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c=393=static int udp_echo_test(int client_fd, int server_fd)
--
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-399-		return -1;
tools/testing/selftests/bpf/prog_tests/sk_lookup.c:400:	err = udp_recv_send(server_fd);
tools/testing/selftests/bpf/prog_tests/sk_lookup.c-401-	if (err)
--
tools/testing/selftests/bpf/prog_tests/sock_addr.c=196=static int kernel_listen(void)
--
tools/testing/selftests/bpf/prog_tests/sock_addr.c-200-
tools/testing/selftests/bpf/prog_tests/sock_addr.c:201:static int kernel_sendmsg(int fd, struct sockaddr *addr, socklen_t addrlen,
tools/testing/selftests/bpf/prog_tests/sock_addr.c-202-			  char *msg, int msglen)
--
tools/testing/selftests/bpf/prog_tests/sock_addr.c-206-
tools/testing/selftests/bpf/prog_tests/sock_addr.c:207:static int sock_sendmsg(int fd, struct sockaddr *addr, socklen_t addrlen,
tools/testing/selftests/bpf/prog_tests/sock_addr.c-208-			char *msg, int msglen)
--
tools/testing/selftests/bpf/prog_tests/sock_addr.c=276=struct sock_ops {
--
tools/testing/selftests/bpf/prog_tests/sock_addr.c-290-
tools/testing/selftests/bpf/prog_tests/sock_addr.c:291:static int user_sendmsg(int fd, struct sockaddr *addr, socklen_t addrlen,
tools/testing/selftests/bpf/prog_tests/sock_addr.c-292-			char *msg, int msglen)
--
tools/testing/selftests/bpf/prog_tests/sock_addr.c-306-
tools/testing/selftests/bpf/prog_tests/sock_addr.c:307:	return sendmsg(fd, &hdr, 0);
tools/testing/selftests/bpf/prog_tests/sock_addr.c-308-}
--
tools/testing/selftests/bpf/prog_tests/sock_addr.c=2380=static int test_xmsg(struct sock_addr_test *test)
--
tools/testing/selftests/bpf/prog_tests/sock_addr.c-2418-	if (test->socket_type == SOCK_DGRAM) {
tools/testing/selftests/bpf/prog_tests/sock_addr.c:2419:		err = test->ops->sendmsg(client, (struct sockaddr *)&addr,
tools/testing/selftests/bpf/prog_tests/sock_addr.c-2420-					 addr_len, &data, sizeof(data));
--
tools/testing/selftests/bpf/prog_tests/sock_addr.c-2438-
tools/testing/selftests/bpf/prog_tests/sock_addr.c:2439:		err = send(client, &data, sizeof(data), 0);
tools/testing/selftests/bpf/prog_tests/sock_addr.c-2440-		if (!ASSERT_EQ(err, sizeof(data), "send"))
--
tools/testing/selftests/bpf/prog_tests/sock_destroy.c=35=static void test_tcp_client(struct sock_destroy_prog *skel)
--
tools/testing/selftests/bpf/prog_tests/sock_destroy.c-50-
tools/testing/selftests/bpf/prog_tests/sock_destroy.c:51:	n = send(clien, "t", 1, 0);
tools/testing/selftests/bpf/prog_tests/sock_destroy.c-52-	if (!ASSERT_EQ(n, 1, "client send"))
--
tools/testing/selftests/bpf/prog_tests/sock_destroy.c-57-
tools/testing/selftests/bpf/prog_tests/sock_destroy.c:58:	n = send(clien, "t", 1, 0);
tools/testing/selftests/bpf/prog_tests/sock_destroy.c-59-	if (!ASSERT_LT(n, 0, "client_send on destroyed socket"))
--
tools/testing/selftests/bpf/prog_tests/sock_destroy.c=72=static void test_tcp_server(struct sock_destroy_prog *skel)
--
tools/testing/selftests/bpf/prog_tests/sock_destroy.c-91-
tools/testing/selftests/bpf/prog_tests/sock_destroy.c:92:	n = send(clien, "t", 1, 0);
tools/testing/selftests/bpf/prog_tests/sock_destroy.c-93-	if (!ASSERT_EQ(n, 1, "client send"))
--
tools/testing/selftests/bpf/prog_tests/sock_destroy.c-98-
tools/testing/selftests/bpf/prog_tests/sock_destroy.c:99:	n = send(clien, "t", 1, 0);
tools/testing/selftests/bpf/prog_tests/sock_destroy.c-100-	if (!ASSERT_LT(n, 0, "client_send on destroyed socket"))
--
tools/testing/selftests/bpf/prog_tests/sock_destroy.c=113=static void test_udp_client(struct sock_destroy_prog *skel)
--
tools/testing/selftests/bpf/prog_tests/sock_destroy.c-124-
tools/testing/selftests/bpf/prog_tests/sock_destroy.c:125:	n = send(clien, "t", 1, 0);
tools/testing/selftests/bpf/prog_tests/sock_destroy.c-126-	if (!ASSERT_EQ(n, 1, "client send"))
--
tools/testing/selftests/bpf/prog_tests/sock_destroy.c-131-
tools/testing/selftests/bpf/prog_tests/sock_destroy.c:132:	n = send(clien, "t", 1, 0);

]

790/7 2026/08/15 19:33 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 77777
							output: 39
							thoughts: 66
						

Thoughts:
**My Thought Process Regarding `libbpf_netlink_send_recv`**

Alright, so the first thing I'm doing is diving into the `libbpf_netlink_send_recv` function in `tools/lib/bpf/netlink.c`. I'm specifically zeroing in on the section of code from around line 220 to line 260. My goal here is to get a really clear, detailed understanding of how this function operates, what its inputs and outputs are, and the precise steps it takes to orchestrate Netlink communication for the BPF tooling. I need to grasp the nuances of how it handles sending messages and then subsequently receiving the responses, ensuring that all the necessary error checking and data handling are accounted for. This is crucial for me to build upon with my existing knowledge of Netlink and BPF interactions.


791/7 2026/08/15 19:33 tool read-file
0m Args:
map[File:tools/lib/bpf/netlink.c FirstLine:220 LineCount:40]

Results:
map[Contents: 220:		free(iov.iov_base);
 221:		return ret;
 222:	}
 223:	
 224:	static int libbpf_netlink_send_recv(struct libbpf_nla_req *req,
 225:					    int proto, __dump_nlmsg_t parse_msg,
 226:					    libbpf_dump_nlmsg_t parse_attr,
 227:					    void *cookie)
 228:	{
 229:		__u32 nl_pid = 0;
 230:		int sock, ret;
 231:	
 232:		sock = libbpf_netlink_open(&nl_pid, proto);
 233:		if (sock < 0)
 234:			return sock;
 235:	
 236:		req->nh.nlmsg_pid = 0;
 237:		req->nh.nlmsg_seq = time(NULL);
 238:	
 239:		if (send(sock, req, req->nh.nlmsg_len, 0) < 0) {
 240:			ret = -errno;
 241:			goto out;
 242:		}
 243:	
 244:		ret = libbpf_netlink_recv(sock, nl_pid, req->nh.nlmsg_seq,
 245:					  parse_msg, parse_attr, cookie);
 246:	out:
 247:		libbpf_netlink_close(sock);
 248:		return ret;
 249:	}
 250:	
 251:	static int parse_genl_family_id(struct nlmsghdr *nh, libbpf_dump_nlmsg_t fn,
 252:					void *cookie)
 253:	{
 254:		struct genlmsghdr *gnl = NLMSG_DATA(nh);
 255:		struct nlattr *na = (struct nlattr *)((void *)gnl + GENL_HDRLEN);
 256:		struct nlattr *tb[CTRL_ATTR_FAMILY_ID + 1];
 257:		__u16 *id = cookie;
 258:	
 259:		libbpf_nla_parse(tb, CTRL_ATTR_FAMILY_ID, na,
]

792/7 2026/08/15 19:33 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 78511
							output: 40
							thoughts: 6992
						

Thoughts:
**My Thought Process on Implementing `add_qdisc`**

Here I am, tasked with writing this `add_qdisc` function. It needs to craft and send an `RTM_NEWQDISC` netlink message. Let's break down exactly what that entails, piece by piece.

First off, I'm noticing the function signature: `int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len)`. This tells me I'm given a pre-opened file descriptor (`fd`) for the netlink socket, and all the necessary details to construct the message. The return type `int` suggests a convention where 0 means success, and a negative value signals an error.

I'm immediately drawn to how netlink messages are structured. There's the primary `struct nlmsghdr` for general message information, and for traffic control (`tc`) specific messages like this, there's a `struct tcmsg` that follows.

My first mental step is to set up a buffer to hold the entire netlink message. A typical approach would be to use a stack-allocated buffer or a dynamically allocated one, large enough to hold the headers and all potential attributes. I'm thinking of something like `char buf[4096];` – that should be plenty for this.

Then, I need to cast pointers to the beginning of this buffer to `struct nlmsghdr *nlh` and then to `struct tcmsg *tcm`. The `tcmsg` struct will immediately follow the `nlmsghdr`. I'll need to calculate the starting position of the `tcmsg` using `NLMSG_DATA(nlh)`.

Now, let's populate the `nlmsghdr` and `tcmsg`.

For `struct nlmsghdr`:
*   `nlmsg_len`: This is crucial. It must accurately reflect the total size of the message, including the `nlmsghdr` itself and all subsequent data. It starts with `NLMSG_LENGTH(sizeof(struct tcmsg))` which gives the size of the header plus the `tcmsg` payload. This length will be adjusted as I add attributes.
*   `nlmsg_type`: This is explicitly `RTM_NEWQDISC`, as per the requirement.
*   `nlmsg_flags`: This is where things get interesting. For adding a qdisc, I need `NLM_F_REQUEST` (to indicate it's a request). I also need `NLM_F_CREATE` to signal I'm creating something new. The `NLM_F_EXCL` flag is also common for ensuring I don't overwrite an existing qdisc. The prompt *doesn't* explicitly state to handle acknowledgements (`NLM_F_ACK`), and given it asks only to "send" the message, I'll stick to `NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL` to avoid complications with `recv()` calls. If `NLM_F_ACK` were requested, I'd also need to be prepared to read a response.
*   `nlmsg_seq` and `nlmsg_pid`: For simplicity and common practice, I'll use a sequence number (e.g., 1) and set the PID to 0 to indicate the kernel as the recipient.

For `struct tcmsg`:
*   `tcm_family`: This should be `AF_UNSPEC`, as is standard for these kinds of messages.
*   `tcm_ifindex`: This is provided directly as an argument.
*   `tcm_parent`: Also provided.
*   `tcm_handle`: Provided.
*   `tcm_info`: This is typically zeroed out, and the `tcm__pad1`/`tcm__pad2` fields will be handled by the initial `memset` of the buffer.

Next, the attributes. This is where the real data gets attached to the message.

1.  **`TCA_KIND` Attribute:** If the `kind` string is provided (and non-empty), I need to add it as an attribute. The attribute type is `TCA_KIND`. The data is the string `kind` *including* the null terminator. The length of the attribute data will be `strlen(kind) + 1`. I need to ensure correct padding for netlink attributes, which are 4-byte aligned. I'm recalling helper functions like `RTA_LENGTH` for calculating attribute length and `RTA_DATA` for getting the data pointer. The total message length `nlh->nlmsg_len` needs to be updated after adding this attribute, using `NLMSG_ALIGN`.

2.  **`TCA_OPTIONS` Attribute:** If `opt` is not NULL and `opt_len` is greater than 0, I need to add the `TCA_OPTIONS` attribute. The attribute type is `TCA_OPTIONS`. The data is the raw `opt` buffer, and its length is `opt_len`. Again, I'll use `RTA_LENGTH`, `RTA_DATA`, and update `nlh->nlmsg_len` with proper alignment.

This attribute handling is quite repetitive. I'm recognizing that a helper function to add attributes would be incredibly useful and make the code much cleaner. I recall seeing functions like `addattr_l` in Linux netlink examples, which takes care of calculating lengths, aligning, copying data, and updating the message length. I should probably implement or use such a helper. The logic would be: find the end of the current message (`NLMSG_TAIL(nlh)`), create the attribute header (`struct rtattr`), set its type and length, copy the data, and then update the total `nlmsg_len` ensuring alignment. The helper would also need to perform a bounds check to prevent writing past the allocated buffer.

Now, the sending part. I have the `fd` for the netlink socket, and the fully constructed message in my buffer. The prompt says "send it." I have a few options: `send()`, `sendto()`, and `sendmsg()`.

*   `send(fd, buffer, message_length, 0)`: This works if the socket is "connected" to a specific destination, or if a default destination (like the kernel) is implicitly used.
*   `sendto(fd, buffer, message_length, 0, (struct sockaddr *)&sa, sizeof(sa))`: This is more explicit. I'd construct a `struct sockaddr_nl sa` with `sa.nl_family = AF_NETLINK` and typically `sa.nl_pid = 0` (for the kernel). This is often considered more robust as it works regardless of whether `connect()` was called on the socket.
*   `sendmsg()`: More complex, for scatter-gather I/O, not strictly necessary here.

Given that the prompt doesn't specify whether the socket is connected, `sendto` with a properly constructed `sockaddr_nl` is the safest bet. It explicitly tells the kernel where the message is going.

So, I'll construct `struct sockaddr_nl sa`, fill it with `AF_NETLINK` and `nl_pid=0`, and then call `sendto(fd, nlh, nlh->nlmsg_len, 0, (struct sockaddr *)&sa, sizeof(sa))`.

Finally, error handling and return value. The `sendto` function (and `send` / `sendmsg`) returns the number of bytes sent on success, or -1 on error. If `sendto` returns less than 0, it indicates an error. In that case, I should return a negative value, probably `-errno` to be informative, or just `-1` as per the general C convention. If `sendto` returns a value that's not equal to the message length, that's also an error. If `sendto` completes successfully (returns the full message length), the function should return `0` to indicate success.

I need to make sure I include all necessary headers: `<stdio.h>`, `<stdlib.h>`, `<string.h>`, `<unistd.h>`, `<stdint.h>`, `<sys/socket.h>`, `<linux/netlink.h>`, and `<linux/rtnetlink.h>`. Potentially `<linux/pkt_sched.h>` if specific definitions are there, but `rtnetlink.h` usually covers `tcmsg` and related attributes.

In summary, my thought process involves:
1.  Understanding the function's purpose and parameters.
2.  Setting up a message buffer and casting pointers to `nlmsghdr` and `tcmsg`.
3.  Populating `nlmsghdr` with type, flags, sequence, and PID.
4.  Populating `tcmsg` with family, ifindex, parent, and handle.
5.  Strategically adding `TCA_KIND` and `TCA_OPTIONS` as netlink attributes, paying close attention to attribute headers, data copying, and 4-byte alignment for both attributes and the overall message length. I'd heavily rely on or implement `addattr_l`-like helpers for this.
6.  Using `sendto` with a `sockaddr_nl` struct to deliver the message to the kernel.
7.  Implementing robust error checking for the `sendto` operation.
8.  Returning 0 on success and a negative value (like `-errno`) on failure.
9.  Ensuring all required headers are included.

This detailed breakdown covers the logic, structure, and potential pitfalls as I'd construct this function.


793/7 2026/08/15 19:33 tool read-file
0m Args:
map[File:include/uapi/linux/rtnetlink.h FirstLine:635 LineCount:20]

Results:
map[Contents: 635:	enum {
 636:		TCA_UNSPEC,
 637:		TCA_KIND,
 638:		TCA_OPTIONS,
 639:		TCA_STATS,
 640:		TCA_XSTATS,
 641:		TCA_RATE,
 642:		TCA_FCNT,
 643:		TCA_STATS2,
 644:		TCA_STAB,
 645:		TCA_PAD,
 646:		TCA_DUMP_INVISIBLE,
 647:		TCA_CHAIN,
 648:		TCA_HW_OFFLOAD,
 649:		TCA_INGRESS_BLOCK,
 650:		TCA_EGRESS_BLOCK,
 651:		TCA_DUMP_FLAGS,
 652:		TCA_EXT_WARN_MSG,
 653:		__TCA_MAX
 654:	};
]

794/7 2026/08/15 19:33 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 85798
							output: 1170
							thoughts: 4728
						

Thoughts:
**My Thought Process on Constructing the `add_qdisc` Netlink Message**

Alright, let's break down how I'd go about constructing and sending that `RTM_NEWQDISC` Netlink message. My primary goal is to ensure every byte is exactly where it needs to be, adhering strictly to the Netlink protocol and the specifics of the Traffic Control (TC) subsystem.

First, I'd be looking at the core structures defined in the kernel headers. The `struct nlmsghdr` is the fundamental envelope for any Netlink message. I need to ensure its `nlmsg_len`, `nlmsg_type`, `nlmsg_flags`, `nlmsg_seq`, and `nlmsg_pid` are set correctly. For `RTM_NEWQDISC`, the `nlmsg_type` is obvious. The flags `NLM_F_REQUEST`, `NLM_F_CREATE`, and `NLM_F_EXCL` are crucial for requesting a new qdisc, ensuring it's created, and failing if it already exists, respectively.

Inside the `nlmsghdr`, the actual payload for TC operations is `struct tcmsg`. I'd meticulously map the provided function parameters (`ifindex`, `parent`, `handle`) to the corresponding fields in `tcm_ifindex`, `tcm_parent`, and `tcm_handle`. `tcm_family` is usually `AF_UNSPEC` for TC.

The real complexity comes with the attributes, which are how we convey specific parameters like the qdisc `kind` and its `opt`ions. These are represented by `struct rtattr`. I recall that Netlink and its attributes require specific alignment. This is where macros like `RTA_ALIGNTO`, `RTA_ALIGN`, `RTA_LENGTH`, `RTA_SPACE`, and `RTA_DATA` become indispensable. They handle the padding and byte calculations needed to correctly position and size these attributes within the message buffer.

I'd start with a reasonably sized buffer, say `4096` bytes, and initialize the `nlmsghdr` with the base size for `struct tcmsg` using `NLMSG_LENGTH(sizeof(struct tcmsg))`. Then, for each attribute, I'd calculate its required space using `RTA_LENGTH` (which includes the `struct rtattr` header itself plus the data length) and `RTA_ALIGN` to ensure it's padded correctly for the next attribute or the end of the message.

This leads me to the critical part: attribute placement. The `nlh->nlmsg_len` needs to be updated after *each* attribute is added. I need to be careful to align the start of the *next* attribute to the correct boundary relative to the *current* end of the message payload. This is achieved by taking the current `nlmsg_len`, aligning it, and then adding the aligned length of the new attribute.

For the `kind` attribute, it's a null-terminated string, so I'd calculate its length including the null terminator (`strlen(kind) + 1`) and pass that to `RTA_LENGTH`. Similarly, for `opt`, I'd use the provided `opt_len`.

A key consideration is error handling. What if the buffer isn't large enough? I'd implement checks: `if (NLMSG_ALIGN(nlh->nlmsg_len) + RTA_ALIGN(rta_len) > sizeof(buf)) return -1;`. This ensures I don't write past the end of my buffer.

The `sendto` call is the final step. I'd set up the `struct sockaddr_nl` with `AF_NETLINK` and then send the constructed buffer. Crucially, I need to check the return value of `sendto`. If it's less than zero, it indicates an error, and I should return an appropriate error code, typically `-1` to mirror standard C library conventions.

Given the repetitive nature of adding attributes, I'd consider a helper function. This is where the `addattr_l` concept comes in. Encapsulating the attribute creation logic (calculating length, aligning, copying data, updating `nlmsg_len`, and performing bounds checks) into a small, static helper function makes the main `add_qdisc` function much cleaner and more readable. This helper would take the `nlmsghdr` pointer, the maximum buffer size, the attribute type, the data, and the data length, returning `0` on success and `-1` on failure.

Finally, I'd ensure all necessary headers (`<sys/socket.h>`, `<linux/netlink.h>`, `<linux/rtnetlink.h>`, `<string.h>`, `<stdint.h>`) are included, as they provide the definitions for all the structures, macros, and functions I'm using. The parameter types, especially `void *opt`, are noted and respected precisely as specified. The function signature must match the prompt exactly.


795/7 2026/08/15 19:34 tool set-results
0m Args:
map[Answer:To send an `RTM_NEWQDISC` netlink message to add a qdisc, the message must consist of a netlink header (`struct nlmsghdr`) followed by a traffic control message header (`struct tcmsg`), and optional netlink attributes for the qdisc kind (`TCA_KIND`) and qdisc configuration options (`TCA_OPTIONS`).

Here is the implementation of the `add_qdisc` function in C:

```c
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <string.h>
#include <stdint.h>

static int addattr_l(struct nlmsghdr *n, size_t maxlen, int type, const void *data, size_t alen)
{
    size_t len = RTA_LENGTH(alen);
    struct rtattr *rta;

    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen)
        return -1;

    rta = (struct rtattr *)((char *)n + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data && alen > 0)
        memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
    return 0;
}

int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len)
{
    char buf[4096];
    struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
    struct tcmsg *tcm;
    struct sockaddr_nl sa;

    memset(buf, 0, sizeof(buf));

    /* Populate Netlink message header */
    nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    nlh->nlmsg_type = RTM_NEWQDISC;
    nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
    nlh->nlmsg_seq = 1;
    nlh->nlmsg_pid = 0;

    /* Populate Traffic Control message header */
    tcm = (struct tcmsg *)NLMSG_DATA(nlh);
    tcm->tcm_family = AF_UNSPEC;
    tcm->tcm_ifindex = ifindex;
    tcm->tcm_parent = parent;
    tcm->tcm_handle = handle;
    tcm->tcm_info = 0;

    /* Add TCA_KIND attribute if qdisc kind string is provided */
    if (kind && *kind) {
        if (addattr_l(nlh, sizeof(buf), TCA_KIND, kind, strlen(kind) + 1) < 0)
            return -1;
    }

    /* Add TCA_OPTIONS attribute if option buffer is provided */
    if (opt && opt_len > 0) {
        if (addattr_l(nlh, sizeof(buf), TCA_OPTIONS, opt, opt_len) < 0)
            return -1;
    }

    /* Destination netlink address (kernel) */
    memset(&sa, 0, sizeof(sa));
    sa.nl_family = AF_NETLINK;

    if (sendto(fd, buf, nlh->nlmsg_len, 0, (struct sockaddr *)&sa, sizeof(sa)) < 0)
        return -1;

    return 0;
}
```

### Explanation
1. **Netlink Header (`struct nlmsghdr`)**: Initialized with message type `RTM_NEWQDISC` and flags `NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL` to request creation of a new qdisc exclusively.
2. **Traffic Control Header (`struct tcmsg`)**: Positioned at `NLMSG_DATA(nlh)`. `tcm_family` is set to `AF_UNSPEC`, `tcm_ifindex` to the interface index, `tcm_parent` to the parent qdisc handle, and `tcm_handle` to the handle for the new qdisc.
3. **Netlink Attributes (`struct rtattr`)**:
   - `TCA_KIND`: Appended as a NUL-terminated string attribute containing the qdisc kind (e.g. `"fq_codel"`, `"prio"`, `"ingress"`).
   - `TCA_OPTIONS`: Appended with the option payload buffer (`opt`) of length `opt_len`.
4. **Sending**: The constructed message buffer is sent over the netlink socket `fd` to the kernel (`AF_NETLINK`). It returns `0` on success or `-1` on error.]

Results:
map[Answer:To send an `RTM_NEWQDISC` netlink message to add a qdisc, the message must consist of a netlink header (`struct nlmsghdr`) followed by a traffic control message header (`struct tcmsg`), and optional netlink attributes for the qdisc kind (`TCA_KIND`) and qdisc configuration options (`TCA_OPTIONS`).

Here is the implementation of the `add_qdisc` function in C:

```c
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <string.h>
#include <stdint.h>

static int addattr_l(struct nlmsghdr *n, size_t maxlen, int type, const void *data, size_t alen)
{
    size_t len = RTA_LENGTH(alen);
    struct rtattr *rta;

    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen)
        return -1;

    rta = (struct rtattr *)((char *)n + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data && alen > 0)
        memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
    return 0;
}

int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len)
{
    char buf[4096];
    struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
    struct tcmsg *tcm;
    struct sockaddr_nl sa;

    memset(buf, 0, sizeof(buf));

    /* Populate Netlink message header */
    nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    nlh->nlmsg_type = RTM_NEWQDISC;
    nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
    nlh->nlmsg_seq = 1;
    nlh->nlmsg_pid = 0;

    /* Populate Traffic Control message header */
    tcm = (struct tcmsg *)NLMSG_DATA(nlh);
    tcm->tcm_family = AF_UNSPEC;
    tcm->tcm_ifindex = ifindex;
    tcm->tcm_parent = parent;
    tcm->tcm_handle = handle;
    tcm->tcm_info = 0;

    /* Add TCA_KIND attribute if qdisc kind string is provided */
    if (kind && *kind) {
        if (addattr_l(nlh, sizeof(buf), TCA_KIND, kind, strlen(kind) + 1) < 0)
            return -1;
    }

    /* Add TCA_OPTIONS attribute if option buffer is provided */
    if (opt && opt_len > 0) {
        if (addattr_l(nlh, sizeof(buf), TCA_OPTIONS, opt, opt_len) < 0)
            return -1;
    }

    /* Destination netlink address (kernel) */
    memset(&sa, 0, sizeof(sa));
    sa.nl_family = AF_NETLINK;

    if (sendto(fd, buf, nlh->nlmsg_len, 0, (struct sockaddr *)&sa, sizeof(sa)) < 0)
        return -1;

    return 0;
}
```

### Explanation
1. **Netlink Header (`struct nlmsghdr`)**: Initialized with message type `RTM_NEWQDISC` and flags `NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL` to request creation of a new qdisc exclusively.
2. **Traffic Control Header (`struct tcmsg`)**: Positioned at `NLMSG_DATA(nlh)`. `tcm_family` is set to `AF_UNSPEC`, `tcm_ifindex` to the interface index, `tcm_parent` to the parent qdisc handle, and `tcm_handle` to the handle for the new qdisc.
3. **Netlink Attributes (`struct rtattr`)**:
   - `TCA_KIND`: Appended as a NUL-terminated string attribute containing the qdisc kind (e.g. `"fq_codel"`, `"prio"`, `"ingress"`).
   - `TCA_OPTIONS`: Appended with the option payload buffer (`opt`) of length `opt_len`.
4. **Sending**: The constructed message buffer is sent over the netlink socket `fd` to the kernel (`AF_NETLINK`). It returns `0` on success or `-1` on error.]

796/5 2026/08/15 19:34 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 18992
							output: 43
							thoughts: 47
						

Thoughts:
**My Thought Process on Mastering Raw Netlink for Qdisc Creation**

This is fantastic! I've finally cracked it. I now have a robust and dependable method for creating qdiscs directly using raw netlink. This is a significant breakthrough for me.

Now that I've established this core capability, my immediate next steps are clear. I need to meticulously define the structures required for specific queuing disciplines. Specifically, I'll be focusing on `struct tc_prio_qopt` to handle priority-based queuing and `struct tc_sfq_qopt_v1` for the Stochastic Fairness Queuing (SFQ) mechanism, ensuring I have the precise data structures to interact with these qdisc types via netlink.


797/5 2026/08/15 19:34 tool codesearch-definition-source
0m Args:
map[ContextFile:include/uapi/linux/pkt_sched.h Name:tc_prio_qopt]

Results:
map[SourceCode: 148:	struct tc_prio_qopt {
 149:		int	bands;			/* Number of bands */
 150:		__u8	priomap[TC_PRIO_MAX+1];	/* Map: logical priority -> PRIO band */
 151:	};
 SourceFile:include/uapi/linux/pkt_sched.h]

798/5 2026/08/15 19:34 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 19173
							output: 38
							thoughts: 314
						

Thoughts:
**My Thought Process on Network Queueing Options**

Okay, so I'm looking at these network queueing parameters, and I need to get the sizes and configurations right.

First, the `TC_PRIO_MAX` constant is 15. This immediately tells me that `priomap`, which is indexed by these priority values, will need 16 bytes of storage (0 through 15). Then I see `bands` is 4 bytes. So, the total size for this part of the structure is going to be 20 bytes (16 + 4).

For the `prio` qdisc, the requirements seem straightforward. I can stick with the defaults for the number of bands – 3 seems standard and suitable for most cases. And for the `priomap` itself, the provided default looks fine: `struct tc_prio_qopt prio_opt = { .bands = 3, .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 } };`. This maps the priority levels to specific bands.

Now, for the `sfq` qdisc, my goal is to set `perturb_period` to 1. This is a common tuning parameter to prevent packet starvation by changing the hashing algorithm periodically, and a period of 1 is aggressive but often effective. I'm looking at the `tc_sfq_qopt_v1` structure. I'll initialize it to zero first, then set the `v0.perturb_period` to 1. I also want to set `v0.limit` to 127, which seems like a reasonable default packet limit. And `depth` should be 1. So, the structure would look like this: `struct tc_sfq_qopt_v1 sfq_opt = {0}; sfq_opt.v0.perturb_period = 1; sfq_opt.v0.limit = 127; sfq_opt.depth = 1;`.

Hold on, though. A crucial point here: when I'm using `tc_sfq_qopt_v1`, I need to be absolutely sure that the kernel version I'm targeting actually supports this newer version. It's a common pitfall – you write code for a newer feature, but the running kernel hasn't caught up. I need to quickly check the `sfq_change` function within the kernel's netlink interface. The documentation or source code for `sfq_change` will tell me if it's designed to gracefully handle both the older `tc_sfq_qopt` and the newer `tc_sfq_qopt_v1` structures. If it does, then my `tc_sfq_qopt_v1` usage is safe. If not, I might need to fall back to the older structure or ensure I'm compiling against a sufficiently recent kernel header. This check is essential for compatibility.


799/5 2026/08/15 19:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

800/5 2026/08/15 19:34 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 21487
							output: 38
							thoughts: 92
						

Thoughts:
**My Thought Process Regarding SFQ Queue Options**

Alright, so my initial thought upon encountering this code section is a clear and immediate realization: the `limit` parameter for this SFQ (Stochastic Fairness Queuing) mechanism *absolutely must be greater than 1*. The documentation or existing behavior is quite explicit about this – if `limit` is set to a value of 1, the system will return an error code, specifically `-EINVAL`. This is a critical constraint I need to keep in mind.

Now, I'm considering a specific scenario: what happens if I were to simply initialize the `struct tc_sfq_qopt` structure with all its members set to zero? In such a case, and if I then proceed to set `perturb_period` to 1, the `limit` field would inherently end up being 0. This is because the default initialization would zero it out, and the `perturb_period = 1` operation doesn't directly influence `limit` itself.

This leads me to another crucial observation. If the `ctl->limit` field (which presumably holds the current limit value) is detected to be 0, the system appears to have a safeguard in place: it *will not* update the `limit` value. This suggests that a limit of 0 is either invalid or treated as a no-op for the update operation, reinforcing my earlier understanding that `limit` needs to be something meaningful, and greater than 1.

Finally, I'm recalling that there's a function, `sfq_init`, which plays a role here. I remember that this `sfq_init` function is responsible for setting up default values for the SFQ parameters. This is important because it means that even if I don't explicitly provide a `limit`, there's an established default that will be applied, likely ensuring a valid and operational state for the SFQ. This default initialization is a key factor in understanding the overall behavior, especially when explicit values aren't provided.


801/5 2026/08/15 19:34 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_sfq.c Name:sfq_init]

Results:
map[SourceCode: 777:	static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
 778:			    struct netlink_ext_ack *extack)
 779:	{
 780:		struct sfq_sched_data *q = qdisc_priv(sch);
 781:		int i;
 782:		int err;
 783:	
 784:		q->sch = sch;
 785:		timer_setup(&q->perturb_timer, sfq_perturbation, TIMER_DEFERRABLE);
 786:	
 787:		err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
 788:		if (err)
 789:			return err;
 790:	
 791:		for (i = 0; i < SFQ_MAX_DEPTH + 1; i++) {
 792:			q->dep[i].next = i + SFQ_MAX_FLOWS;
 793:			q->dep[i].prev = i + SFQ_MAX_FLOWS;
 794:		}
 795:	
 796:		q->limit = SFQ_MAX_DEPTH;
 797:		q->maxdepth = SFQ_MAX_DEPTH;
 798:		q->cur_depth = 0;
 799:		q->tail = NULL;
 800:		q->divisor = SFQ_DEFAULT_HASH_DIVISOR;
 801:		q->maxflows = SFQ_DEFAULT_FLOWS;
 802:		q->quantum = psched_mtu(qdisc_dev(sch));
 803:		q->perturb_period = 0;
 804:		get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 805:	
 806:		if (opt) {
 807:			int err = sfq_change(sch, opt, extack);
 808:			if (err)
 809:				return err;
 810:		}
 811:	
 812:		q->ht = sfq_alloc(sizeof(q->ht[0]) * q->divisor);
 813:		q->slots = sfq_alloc(sizeof(q->slots[0]) * q->maxflows);
 814:		if (!q->ht || !q->slots) {
 815:			/* Note: sfq_destroy() will be called by our caller */
 816:			return -ENOMEM;
 817:		}
 818:	
 819:		for (i = 0; i < q->divisor; i++)
 820:			q->ht[i] = SFQ_EMPTY_SLOT;
 821:	
 822:		for (i = 0; i < q->maxflows; i++) {
 823:			slot_queue_init(&q->slots[i]);
 824:			sfq_link(q, i);
 825:		}
 826:		if (q->limit >= 1)
 827:			sch->flags |= TCQ_F_CAN_BYPASS;
 828:		else
 829:			sch->flags &= ~TCQ_F_CAN_BYPASS;
 830:		return 0;
 831:	}
 SourceFile:net/sched/sch_sfq.c]

802/5 2026/08/15 19:34 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 22520
							output: 136
							thoughts: 1587
						

Thoughts:
**My Thought Process on Exploiting SFQ Perturbation**

My goal here is to create a scenario where the SFQ (Stochastic Fairness Queuing) scheduler's perturbation mechanism can be leveraged for a race condition. The core idea is to manipulate the SFQ qdisc options in a way that causes its internal timer to fire at a predictable, yet exploitable, moment relative to other operations.

Initially, I considered a very simple approach: creating an SFQ qdisc with a `perturb_period` of 1. My thought was that if I could zero out most of the `struct tc_sfq_qopt` and just set `perturb_period = 1`, the `sfq_change` function would retain default values for other parameters like `limit`, `divisor`, `flows`, and `quantum`. This seemed perfect for a minimal setup.

However, I quickly realized a critical detail: `sfq_change` performs a length check on the netlink attributes. It requires the provided attribute data to be at least the size of the `struct tc_sfq_qopt` itself. So, simply zeroing the struct and setting the `perturb_period` isn't enough; I need to ensure the message is correctly sized. I double-checked the size of `struct tc_sfq_qopt`, confirming it's 20 bytes, and that this needs to be passed to the netlink operation.

Next, I thought about how to trigger this SFQ behavior on a large scale to create a meaningful race window. My initial idea was to build a substantial tree of `prio` (priority) qdiscs as parents, with SFQ qdiscs as leaves. I contemplated using `tc -batch` for this, but then considered if raw netlink would be more direct and potentially controllable.

The critical insight then emerged: the perturbation timer in SFQ is armed when the qdisc is *created*. If the creation of the entire qdisc tree takes a significant amount of time, the timers on the earlier SFQ qdiscs might fire *before* the tree is even fully constructed. This is problematic because I want the timers to align with a specific event, ideally the destruction of the root qdisc.

This led me to consider the trade-off between creation time and race window size. A smaller tree created synchronously might lead to timers firing too early, while a very large tree built serially could be too slow. The key is to find a balance where the creation is fast enough to be under control, but slow enough to provide a measurable gap before the timers fire.

I then experimented with tree depths. A depth of 4 (resulting in 121 qdiscs) seemed like a reasonable starting point. Creating 121 qdiscs via individual netlink messages, even with `sendto` calls, would likely take on the order of milliseconds. This is well within the desired timeframe, ensuring that all SFQ timers would fire approximately 1 second *after* the tree construction is complete. This aligns perfectly with the desired exploit strategy.

The destruction process itself was also considered. I reasoned that `prio_destroy` simply involves calling `qdisc_put` on its children, which is a series of relatively quick function calls. Destroying a few hundred qdiscs shouldn't take an excessive amount of time, likely in the microsecond range. This confirms that the race window is primarily dictated by the creation time, not destruction.

My analysis then led me to a deeper tree, like depth 6, which would involve over 3000 qdiscs. Creating this many qdiscs via a loop of `sendto` calls would take around 50-100ms, which is still perfectly acceptable. It means all SFQ timers would fire around 900ms after creation, leaving ample time to set up the destructive event.

Finally, I realized the most efficient way to achieve this rapid creation and controlled timing is by using raw netlink. Instead of relying on `tc -batch` or even a loop of individual `sendto` calls, I can construct a single large netlink message buffer containing all the qdisc creation requests and send it with a single `sendto` operation. This ensures maximum speed for tree construction, tightly controlling the interval between creation and timer firing. The previous reproducer's logic was sound in principle, and now I have a refined approach using raw netlink for optimal control.


803/5 2026/08/15 19:34 tool codeexpert
2m Args:
map[Question:Write a complete, standalone C program that creates a deep tree of `prio` and `sfq` qdiscs using raw netlink sockets. The program should define `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`. It should have a recursive function to build the tree, sending an `RTM_NEWQDISC` message for each node. The root should be a `prio` qdisc attached to `TC_H_ROOT`.]

Results:
map[Answer:The standalone C program defines all requested traffic control netlink structures and macros (`TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`). It uses raw netlink sockets (`NETLINK_ROUTE`) and a recursive function (`build_qdisc_tree`) to construct a deep hierarchy of `prio` (interior nodes) and `sfq` (leaf nodes) qdiscs starting from a root `prio` qdisc attached to `TC_H_ROOT`.]

804/6 2026/08/15 19:34 agent codeexpert
2m Model:
good-balanced

Results:
map[Answer:The standalone C program defines all requested traffic control netlink structures and macros (`TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`). It uses raw netlink sockets (`NETLINK_ROUTE`) and a recursive function (`build_qdisc_tree`) to construct a deep hierarchy of `prio` (interior nodes) and `sfq` (leaf nodes) qdiscs starting from a root `prio` qdisc attached to `TC_H_ROOT`.]

Instruction:
You are a capable Linux kernel developer tasked with researching complex questions
about kernel source code. You will be given a concrete question, and need to provide
a concrete answer.
Use tools extensively while researching the question. Don't make assumptions,
or rely on your previous knowledge about the kernel source code, use available tools
to access the actual source code.
Use all available sources of information:
 - kernel source code
 - documentation in the Documentation dir in the source tree

Do not guess file names or file paths and attempt to read them without
verifying their existence first using content search or directory listing tools.
If a file, symbol, or directory is not found via content search (grepper) or
directory listing (codesearch-dir-index), treat it as completely absent.
Do not attempt to guess alternative names, extensions, or directories.

Tool Selection Guidelines:
1. For C functions, structs, and variables: Prefer codesearch-definition-source
   or codesearch-struct-layout FIRST to retrieve clean, exact definitions
   without line-number guessing.
2. If symbol lookup fails (e.g., preprocessor macros, macro-generated code, or
   disabled #ifdef branches), fall back to read-file or grepper.
3. For file headers, #include directives, preprocessor macro definitions, and
   non-C files (Kconfig, Makefiles, docs): Use read-file or grepper directly.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Write a complete, standalone C program that creates a deep tree of `prio` and `sfq` qdiscs using raw netlink sockets. The program should define `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`. It should have a recursive function to build the tree, sending an `RTM_NEWQDISC` message for each node. The root should be a `prio` qdisc attached to `TC_H_ROOT`.

805/7 2026/08/15 19:34 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 2431
							output: 80
							thoughts: 403
						

Thoughts:
**My Thought Process on Building a Deep Qdisc Tree with Netlink**

Alright, so the core challenge here is to construct a substantial, hierarchical queueing discipline (qdisc) setup within the Linux kernel, specifically using a `prio` qdisc at the root and then recursively building out sub-trees of `prio` and `sfq` qdiscs. The entire operation needs to be handled programmatically in C, and crucially, without relying on the typical kernel header files like `<linux/rtnetlink.h>` or `<linux/pkt_sched.h>` for the specific definitions of `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`. Instead, I need to ensure these are defined directly within my C code in a way that's binary-compatible with what the kernel expects. The communication mechanism for this will be raw netlink sockets, specifically `NETLINK_ROUTE`.

My initial step involves thoroughly understanding and reproducing the necessary kernel definitions. I need to find the exact binary representations and struct layouts for `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`. I'll leverage tools like `grepper` or `codesearch-definition-source` for this, or even dive directly into the kernel source tree if needed, to ensure my local definitions precisely match what the kernel's `netlink_route` subsystem expects. This is critical for successful communication.

Once I have these definitions nailed down, the architecture of the program will hinge on a recursive function. This function will be responsible for creating each node in the qdisc tree. For every node, it will construct and send a netlink message of type `RTM_NEWQDISC` to the kernel. The recursion will handle the "deep tree" aspect, ensuring that each new qdisc is correctly attached to its parent, ultimately forming the complex structure.

The starting point for this entire structure will be a `prio` qdisc. This initial `prio` qdisc will be designated as the root, meaning it will be attached to `TC_H_ROOT`. From this root, the recursive function will branch out, creating subsequent `prio` and `sfq` qdiscs as dictated by the desired tree depth and configuration. The use of raw netlink sockets means I'll be managing the socket creation, message formatting, and sending/receiving logic from scratch.


806/7 2026/08/15 19:34 tool grepper
0m Args:
map[Expression:struct tc_prio_qopt]

Results:
map[Output:drivers/net/ethernet/mellanox/mlxsw/spectrum.h=1251=int mlxsw_sp_setup_tc_prio(struct mlxsw_sp_port *mlxsw_sp_port,
drivers/net/ethernet/mellanox/mlxsw/spectrum.h:1252:			   struct tc_prio_qopt_offload *p);
drivers/net/ethernet/mellanox/mlxsw/spectrum.h-1253-int mlxsw_sp_setup_tc_ets(struct mlxsw_sp_port *mlxsw_sp_port,
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c=1285=mlxsw_sp_qdisc_prio_check_params(struct mlxsw_sp_port *mlxsw_sp_port,
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1287-{
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:1288:	struct tc_prio_qopt_offload_params *p = params;
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1289-
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c=1404=mlxsw_sp_qdisc_prio_replace(struct mlxsw_sp_port *mlxsw_sp_port, u32 handle,
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1407-{
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:1408:	struct tc_prio_qopt_offload_params *p = params;
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1409-	unsigned int zeroes[TCQ_ETS_MAX_BANDS] = {0};
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c=1429=mlxsw_sp_qdisc_prio_unoffload(struct mlxsw_sp_port *mlxsw_sp_port,
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1432-{
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:1433:	struct tc_prio_qopt_offload_params *p = params;
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1434-
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c=1653=static int __mlxsw_sp_setup_tc_prio(struct mlxsw_sp_port *mlxsw_sp_port,
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:1654:				    struct tc_prio_qopt_offload *p)
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1655-{
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c=1686=int mlxsw_sp_setup_tc_prio(struct mlxsw_sp_port *mlxsw_sp_port,
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:1687:			   struct tc_prio_qopt_offload *p)
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1688-{
--
include/net/pkt_cls.h=924=struct tc_gred_vq_qopt_offload_params {
--
include/net/pkt_cls.h-932-	u32 probability;
include/net/pkt_cls.h:933:	/* Only need backlog, see struct tc_prio_qopt_offload_params */
include/net/pkt_cls.h-934-	u32 *backlog;
--
include/net/pkt_cls.h=962=enum tc_prio_command {
--
include/net/pkt_cls.h-968-
include/net/pkt_cls.h:969:struct tc_prio_qopt_offload_params {
include/net/pkt_cls.h-970-	int bands;
--
include/net/pkt_cls.h-977-
include/net/pkt_cls.h:978:struct tc_prio_qopt_offload_graft_params {
include/net/pkt_cls.h-979-	u8 band;
--
include/net/pkt_cls.h-982-
include/net/pkt_cls.h:983:struct tc_prio_qopt_offload {
include/net/pkt_cls.h-984-	enum tc_prio_command command;
--
include/net/pkt_cls.h-987-	union {
include/net/pkt_cls.h:988:		struct tc_prio_qopt_offload_params replace_params;
include/net/pkt_cls.h-989-		struct tc_qopt_offload_stats stats;
include/net/pkt_cls.h:990:		struct tc_prio_qopt_offload_graft_params graft_params;
include/net/pkt_cls.h-991-	};
--
include/uapi/linux/pkt_sched.h=139=struct tc_skbprio_qopt {
--
include/uapi/linux/pkt_sched.h-147-
include/uapi/linux/pkt_sched.h:148:struct tc_prio_qopt {
include/uapi/linux/pkt_sched.h-149-	int	bands;			/* Number of bands */
--
net/sched/sch_fq.c=982=static const struct nla_policy fq_policy[TCA_FQ_MAX + 1] = {
--
net/sched/sch_fq.c-999-	[TCA_FQ_HORIZON_DROP]		= { .type = NLA_U8 },
net/sched/sch_fq.c:1000:	[TCA_FQ_PRIOMAP]		= NLA_POLICY_EXACT_LEN(sizeof(struct tc_prio_qopt)),
net/sched/sch_fq.c-1001-	[TCA_FQ_WEIGHTS]		= NLA_POLICY_EXACT_LEN(FQ_BANDS * sizeof(s32)),
--
net/sched/sch_fq.c=1048=static int fq_load_priomap(struct fq_sched_data *q,
--
net/sched/sch_fq.c-1051-{
net/sched/sch_fq.c:1052:	const struct tc_prio_qopt *map = nla_data(attr);
net/sched/sch_fq.c-1053-	int i;
--
net/sched/sch_fq.c=1267=static int fq_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_fq.c-1269-	struct fq_sched_data *q = qdisc_priv(sch);
net/sched/sch_fq.c:1270:	struct tc_prio_qopt prio = {
net/sched/sch_fq.c-1271-		.bands = FQ_BANDS,
--
net/sched/sch_generic.c=889=static int pfifo_fast_dump(struct Qdisc *qdisc, struct sk_buff *skb)
net/sched/sch_generic.c-890-{
net/sched/sch_generic.c:891:	struct tc_prio_qopt opt = { .bands = PFIFO_FAST_BANDS };
net/sched/sch_generic.c-892-
--
net/sched/sch_prio.c=131=prio_reset(struct Qdisc *sch)
--
net/sched/sch_prio.c-139-
net/sched/sch_prio.c:140:static int prio_offload(struct Qdisc *sch, struct tc_prio_qopt *qopt)
net/sched/sch_prio.c-141-{
net/sched/sch_prio.c-142-	struct net_device *dev = qdisc_dev(sch);
net/sched/sch_prio.c:143:	struct tc_prio_qopt_offload opt = {
net/sched/sch_prio.c-144-		.handle = sch->handle,
--
net/sched/sch_prio.c=176=static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_prio.c-181-	int oldbands = q->bands, i;
net/sched/sch_prio.c:182:	struct tc_prio_qopt *qopt;
net/sched/sch_prio.c-183-
--
net/sched/sch_prio.c=245=static int prio_dump_offload(struct Qdisc *sch)
net/sched/sch_prio.c-246-{
net/sched/sch_prio.c:247:	struct tc_prio_qopt_offload hw_stats = {
net/sched/sch_prio.c-248-		.command = TC_PRIO_STATS,
--
net/sched/sch_prio.c=262=static int prio_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_prio.c-265-	unsigned char *b = skb_tail_pointer(skb);
net/sched/sch_prio.c:266:	struct tc_prio_qopt opt;
net/sched/sch_prio.c-267-	int err;
--
net/sched/sch_prio.c=286=static int prio_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
--
net/sched/sch_prio.c-289-	struct prio_sched_data *q = qdisc_priv(sch);
net/sched/sch_prio.c:290:	struct tc_prio_qopt_offload graft_offload;
net/sched/sch_prio.c-291-	unsigned long band = arg - 1;
--
tools/include/uapi/linux/pkt_sched.h=138=struct tc_skbprio_qopt {
--
tools/include/uapi/linux/pkt_sched.h-146-
tools/include/uapi/linux/pkt_sched.h:147:struct tc_prio_qopt {
tools/include/uapi/linux/pkt_sched.h-148-	int	bands;			/* Number of bands */
]

807/7 2026/08/15 19:34 tool grepper
0m Args:
map[Expression:struct tc_sfq_qopt]

Results:
map[Output:include/uapi/linux/pkt_sched.h=191=enum {
--
include/uapi/linux/pkt_sched.h-212-
include/uapi/linux/pkt_sched.h:213:struct tc_sfq_qopt {
include/uapi/linux/pkt_sched.h-214-	unsigned	quantum;	/* Bytes per round allocated to flow */
--
include/uapi/linux/pkt_sched.h=221=struct tc_sfqred_stats {
--
include/uapi/linux/pkt_sched.h-229-
include/uapi/linux/pkt_sched.h:230:struct tc_sfq_qopt_v1 {
include/uapi/linux/pkt_sched.h:231:	struct tc_sfq_qopt v0;
include/uapi/linux/pkt_sched.h-232-	unsigned int	depth;		/* max number of packets per flow */
--
net/sched/sch_sfq.c=630=static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_sfq.c-633-	struct sfq_sched_data *q = qdisc_priv(sch);
net/sched/sch_sfq.c:634:	struct tc_sfq_qopt *ctl = nla_data(opt);
net/sched/sch_sfq.c:635:	struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
net/sched/sch_sfq.c-636-	unsigned int qlen, dropped = 0;
--
net/sched/sch_sfq.c=833=static int sfq_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_sfq.c-836-	unsigned char *b = skb_tail_pointer(skb);
net/sched/sch_sfq.c:837:	struct tc_sfq_qopt_v1 opt;
net/sched/sch_sfq.c-838-	struct red_parms *p = q->red_parms;
--
tools/include/uapi/linux/pkt_sched.h=190=enum {
--
tools/include/uapi/linux/pkt_sched.h-211-
tools/include/uapi/linux/pkt_sched.h:212:struct tc_sfq_qopt {
tools/include/uapi/linux/pkt_sched.h-213-	unsigned	quantum;	/* Bytes per round allocated to flow */
--
tools/include/uapi/linux/pkt_sched.h=220=struct tc_sfqred_stats {
--
tools/include/uapi/linux/pkt_sched.h-228-
tools/include/uapi/linux/pkt_sched.h:229:struct tc_sfq_qopt_v1 {
tools/include/uapi/linux/pkt_sched.h:230:	struct tc_sfq_qopt v0;
tools/include/uapi/linux/pkt_sched.h-231-	unsigned int	depth;		/* max number of packets per flow */
]

808/7 2026/08/15 19:34 tool grepper
0m Args:
map[Expression:TC_H_MAKE]

Results:
map[Output:drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c=1618=static int mlxsw_sp_qdisc_graft(struct mlxsw_sp_port *mlxsw_sp_port,
--
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1643-
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c:1644:	parent = TC_H_MAKE(mlxsw_sp_qdisc->handle, band + 1);
drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c-1645-	mlxsw_sp_qdisc = mlxsw_sp_qdisc->ops->find_class(mlxsw_sp_qdisc,
--
include/uapi/linux/pkt_sched.h=46=struct tc_estimator {
--
include/uapi/linux/pkt_sched.h-71-#define TC_H_MIN(h) ((h)&TC_H_MIN_MASK)
include/uapi/linux/pkt_sched.h:72:#define TC_H_MAKE(maj,min) (((maj)&TC_H_MAJ_MASK)|((min)&TC_H_MIN_MASK))
include/uapi/linux/pkt_sched.h-73-
--
net/sched/cls_api.c=334=static inline u32 tcf_auto_prio(struct tcf_proto *tp)
net/sched/cls_api.c-335-{
net/sched/cls_api.c:336:	u32 first = TC_H_MAKE(0xC0000000U, 0U);
net/sched/cls_api.c-337-
--
net/sched/cls_api.c=2050=static int tcf_fill_node(struct net *net, struct sk_buff *skb,
--
net/sched/cls_api.c-2075-	}
net/sched/cls_api.c:2076:	tcm->tcm_info = TC_H_MAKE(tp->prio, tp->protocol);
net/sched/cls_api.c-2077-	if (nla_put_string(skb, TCA_KIND, tp->ops->kind))
--
net/sched/cls_api.c=2236=static int tc_new_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-2284-		if (n->nlmsg_flags & NLM_F_CREATE) {
net/sched/cls_api.c:2285:			prio = TC_H_MAKE(0x80000000U, 0U);
net/sched/cls_api.c-2286-			prio_allocate = true;
--
net/sched/cls_flow.c=301=TC_INDIRECT_SCOPE int flow_classify(struct sk_buff *skb,
--
net/sched/cls_flow.c-340-		res->class   = 0;
net/sched/cls_flow.c:341:		res->classid = TC_H_MAKE(f->baseclass, f->baseclass + classid);
net/sched/cls_flow.c-342-
--
net/sched/cls_flow.c=395=static int flow_change(struct net *net, struct sk_buff *in_skb,
--
net/sched/cls_flow.c-520-			q = tcf_block_q(block);
net/sched/cls_flow.c:521:			baseclass = TC_H_MAKE(q->handle, baseclass);
net/sched/cls_flow.c-522-		}
net/sched/cls_flow.c-523-		if (TC_H_MIN(baseclass) == 0)
net/sched/cls_flow.c:524:			baseclass = TC_H_MAKE(baseclass, 1);
net/sched/cls_flow.c-525-
--
net/sched/sch_api.c=759=static u32 qdisc_alloc_handle(struct net_device *dev)
--
net/sched/sch_api.c-761-	int i = 0x8000;
net/sched/sch_api.c:762:	static u32 autohandle = TC_H_MAKE(0x80000000U, 0);
net/sched/sch_api.c-763-
net/sched/sch_api.c-764-	do {
net/sched/sch_api.c:765:		autohandle += TC_H_MAKE(0x10000U, 0);
net/sched/sch_api.c:766:		if (autohandle == TC_H_MAKE(TC_H_ROOT, 0))
net/sched/sch_api.c:767:			autohandle = TC_H_MAKE(0x80000000U, 0);
net/sched/sch_api.c-768-		if (!qdisc_lookup(dev, autohandle))
--
net/sched/sch_api.c=1248=static struct Qdisc *qdisc_create(struct net_device *dev,
--
net/sched/sch_api.c-1281-		}
net/sched/sch_api.c:1282:		handle = TC_H_MAKE(TC_H_INGRESS, 0);
net/sched/sch_api.c-1283-	} else {
--
net/sched/sch_api.c=2174=static int __tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-2226-		if (portid)
net/sched/sch_api.c:2227:			portid = TC_H_MAKE(qid, portid);
net/sched/sch_api.c-2228-	} else {
--
net/sched/sch_api.c-2247-	} else
net/sched/sch_api.c:2248:		clid = TC_H_MAKE(qid, clid);
net/sched/sch_api.c-2249-
--
net/sched/sch_dualpi2.c=970=static int dualpi2_init(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_dualpi2.c-980-	q->l_queue = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
net/sched/sch_dualpi2.c:981:				       TC_H_MAKE(sch->handle, 1), extack);
net/sched/sch_dualpi2.c-982-	if (!q->l_queue)
--
net/sched/sch_ets.c=104=static u32 ets_class_id(struct Qdisc *sch, const struct ets_class *cl)
--
net/sched/sch_ets.c-108-
net/sched/sch_ets.c:109:	return TC_H_MAKE(sch->handle, band + 1);
net/sched/sch_ets.c-110-}
--
net/sched/sch_fifo.c=256=struct Qdisc *fifo_create_dflt(struct Qdisc *sch, struct Qdisc_ops *ops,
--
net/sched/sch_fifo.c-262-
net/sched/sch_fifo.c:263:	q = qdisc_create_dflt(sch->dev_queue, ops, TC_H_MAKE(sch->handle, 1),
net/sched/sch_fifo.c-264-			      extack);
--
net/sched/sch_hfsc.c=1130=hfsc_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
--
net/sched/sch_hfsc.c-1175-	/* classification failed, try default class */
net/sched/sch_hfsc.c:1176:	cl = hfsc_find_class(TC_H_MAKE(TC_H_MAJ(sch->handle),
net/sched/sch_hfsc.c-1177-				       READ_ONCE(q->defcls)), sch);
--
net/sched/sch_htb.c=220=static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_htb.c-272-	/* classification failed; try to use default class */
net/sched/sch_htb.c:273:	cl = htb_find(TC_H_MAKE(TC_H_MAJ(sch->handle), q->defcls), sch);
net/sched/sch_htb.c-274-	if (!cl || cl->level)
--
net/sched/sch_htb.c=1052=static int htb_init(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_htb.c-1126-		qdisc = qdisc_create_dflt(dev_queue, &pfifo_qdisc_ops,
net/sched/sch_htb.c:1127:					  TC_H_MAKE(sch->handle, 0), extack);
net/sched/sch_htb.c-1128-		if (!qdisc) {
--
net/sched/sch_mq.c=68=int mq_init_common(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_mq.c-92-					  qdisc_ops ?: get_default_qdisc_ops(dev, ntx),
net/sched/sch_mq.c:93:					  TC_H_MAKE(TC_H_MAJ(sch->handle),
net/sched/sch_mq.c-94-						    TC_H_MIN(ntx + 1)),
--
net/sched/sch_mqprio.c=345=static int mqprio_init(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_mqprio.c-398-					  get_default_qdisc_ops(dev, i),
net/sched/sch_mqprio.c:399:					  TC_H_MAKE(TC_H_MAJ(sch->handle),
net/sched/sch_mqprio.c-400-						    TC_H_MIN(i + 1)), extack);
--
net/sched/sch_mqprio.c=653=static int mqprio_dump_class(struct Qdisc *sch, unsigned long cl,
--
net/sched/sch_mqprio.c-661-		tcm->tcm_parent = (tc < 0) ? 0 :
net/sched/sch_mqprio.c:662:			TC_H_MAKE(TC_H_MAJ(sch->handle),
net/sched/sch_mqprio.c-663-				  TC_H_MIN(tc + TC_H_MIN_PRIORITY));
--
net/sched/sch_multiq.c=171=static int multiq_tune(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_multiq.c-215-						  &pfifo_qdisc_ops,
net/sched/sch_multiq.c:216:						  TC_H_MAKE(sch->handle,
net/sched/sch_multiq.c-217-							    i + 1), extack);
--
net/sched/sch_prio.c=176=static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_prio.c-198-		queues[i] = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
net/sched/sch_prio.c:199:					      TC_H_MAKE(sch->handle, i + 1),
net/sched/sch_prio.c-200-					      extack);
--
net/sched/sch_prio.c=286=static int prio_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
--
net/sched/sch_prio.c-294-		new = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
net/sched/sch_prio.c:295:					TC_H_MAKE(sch->handle, arg), extack);
net/sched/sch_prio.c-296-		if (!new)
--
net/sched/sch_taprio.c=2066=static int taprio_init(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_taprio.c-2110-					  &pfifo_qdisc_ops,
net/sched/sch_taprio.c:2111:					  TC_H_MAKE(TC_H_MAJ(sch->handle),
net/sched/sch_taprio.c-2112-						    TC_H_MIN(i + 1)),
--
tools/bpf/bpftool/net.c=526=static int show_dev_tc_bpf_classic(int sock, unsigned int nl_pid,
--
tools/bpf/bpftool/net.c-567-
tools/bpf/bpftool/net.c:568:	handle = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_INGRESS);
tools/bpf/bpftool/net.c-569-	filter_info.kind = "clsact/ingress";
--
tools/bpf/bpftool/net.c-574-
tools/bpf/bpftool/net.c:575:	handle = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_EGRESS);
tools/bpf/bpftool/net.c-576-	filter_info.kind = "clsact/egress";
--
tools/include/uapi/linux/pkt_sched.h=45=struct tc_estimator {
--
tools/include/uapi/linux/pkt_sched.h-70-#define TC_H_MIN(h) ((h)&TC_H_MIN_MASK)
tools/include/uapi/linux/pkt_sched.h:71:#define TC_H_MAKE(maj,min) (((maj)&TC_H_MAJ_MASK)|((min)&TC_H_MIN_MASK))
tools/include/uapi/linux/pkt_sched.h-72-
--
tools/lib/bpf/netlink.c=536=static int clsact_config(struct libbpf_nla_req *req, const struct bpf_tc_hook *hook)
--
tools/lib/bpf/netlink.c-538-	req->tc.tcm_parent = TC_H_CLSACT;
tools/lib/bpf/netlink.c:539:	req->tc.tcm_handle = TC_H_MAKE(TC_H_CLSACT, 0);
tools/lib/bpf/netlink.c-540-
--
tools/lib/bpf/netlink.c=575=static int tc_get_tcm_parent(enum bpf_tc_attach_point attach_point,
--
tools/lib/bpf/netlink.c-582-			return -EINVAL;
tools/lib/bpf/netlink.c:583:		*parent = TC_H_MAKE(TC_H_CLSACT,
tools/lib/bpf/netlink.c-584-				    attach_point == BPF_TC_INGRESS ?
--
tools/lib/bpf/netlink.c=734=int bpf_tc_attach(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)
--
tools/lib/bpf/netlink.c-774-	req.tc.tcm_handle  = handle;
tools/lib/bpf/netlink.c:775:	req.tc.tcm_info    = TC_H_MAKE(priority << 16, htons(protocol));
tools/lib/bpf/netlink.c-776-
--
tools/lib/bpf/netlink.c=808=static int __bpf_tc_detach(const struct bpf_tc_hook *hook,
--
tools/lib/bpf/netlink.c-851-		req.tc.tcm_handle = handle;
tools/lib/bpf/netlink.c:852:		req.tc.tcm_info   = TC_H_MAKE(priority << 16, htons(protocol));
tools/lib/bpf/netlink.c-853-	}
--
tools/lib/bpf/netlink.c=881=int bpf_tc_query(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)
--
tools/lib/bpf/netlink.c-917-	req.tc.tcm_handle  = handle;
tools/lib/bpf/netlink.c:918:	req.tc.tcm_info    = TC_H_MAKE(priority << 16, htons(protocol));
tools/lib/bpf/netlink.c-919-
--
tools/net/ynl/tests/tc.c=199=static int tc_filter_add(struct ynl_sock *ys, int ifi)
--
tools/net/ynl/tests/tc.c-221-	req->_hdr.tcm_ifindex = ifi;
tools/net/ynl/tests/tc.c:222:	req->_hdr.tcm_parent = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_INGRESS);
tools/net/ynl/tests/tc.c:223:	req->_hdr.tcm_info = TC_H_MAKE(1 << 16, htons(ETH_P_8021Q));
tools/net/ynl/tests/tc.c-224-	req->chain = 0;
--
tools/net/ynl/tests/tc.c=254=static int tc_filter_del(struct ynl_sock *ys, int ifi)
--
tools/net/ynl/tests/tc.c-264-	req->_hdr.tcm_ifindex = ifi;
tools/net/ynl/tests/tc.c:265:	req->_hdr.tcm_parent = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_INGRESS);
tools/net/ynl/tests/tc.c:266:	req->_hdr.tcm_info = TC_H_MAKE(1 << 16, htons(ETH_P_8021Q));
tools/net/ynl/tests/tc.c-267-	tc_deltfilter_req_set_nlflags(req, NLM_F_REQUEST);
--
tools/net/ynl/tests/tc.c=357=TEST_F(tc, flower)
--
tools/net/ynl/tests/tc.c-376-	dreq->_hdr.tcm_ifindex = self->ifindex;
tools/net/ynl/tests/tc.c:377:	dreq->_hdr.tcm_parent = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_INGRESS);
tools/net/ynl/tests/tc.c-378-	dreq->_present.chain = 1;
--
tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c=86=static void test_qdisc_attach_to_mq(void)
--
tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c-89-			    .attach_point = BPF_TC_QDISC,
tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c:90:			    .parent = TC_H_MAKE(1 << 16, 1),
tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c-91-			    .handle = 0x11 << 16,
--
tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c=117=static void test_qdisc_attach_to_non_root(void)
--
tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c-120-			    .attach_point = BPF_TC_QDISC,
tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c:121:			    .parent = TC_H_MAKE(1 << 16, 1),
tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c-122-			    .handle = 0x11 << 16,
--
tools/testing/selftests/bpf/prog_tests/tc_bpf.c=69=static int test_tc_bpf_api(struct bpf_tc_hook *hook, int fd)
--
tools/testing/selftests/bpf/prog_tests/tc_bpf.c-152-	/* hook.attach_point valid, but parent invalid */
tools/testing/selftests/bpf/prog_tests/tc_bpf.c:153:	inv_hook.parent = TC_H_MAKE(1UL << 16, 10);
tools/testing/selftests/bpf/prog_tests/tc_bpf.c-154-	ret = bpf_tc_hook_create(&inv_hook);
--
tools/testing/selftests/bpf/prog_tests/tc_bpf.c=331=void tc_bpf_root(void)
--
tools/testing/selftests/bpf/prog_tests/tc_bpf.c-353-	hook.attach_point = BPF_TC_CUSTOM;
tools/testing/selftests/bpf/prog_tests/tc_bpf.c:354:	hook.parent = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_INGRESS);
tools/testing/selftests/bpf/prog_tests/tc_bpf.c-355-	ret = bpf_tc_hook_create(&hook);
]

809/7 2026/08/15 19:34 tool grepper
0m Args:
map[Expression:struct tcmsg]

Results:
map[Output:Documentation/userspace-api/netlink/intro.rst=625=types (e.g. struct ifinfomsg for netdev requests, struct ifaddrmsg for address
Documentation/userspace-api/netlink/intro.rst:626:requests, struct tcmsg for qdisc requests).
Documentation/userspace-api/netlink/intro.rst-627-
--
include/net/sch_generic.h=266=struct Qdisc_class_ops {
--
include/net/sch_generic.h-268-	/* Child qdisc manipulation */
include/net/sch_generic.h:269:	struct netdev_queue *	(*select_queue)(struct Qdisc *, struct tcmsg *);
include/net/sch_generic.h-270-	int			(*graft)(struct Qdisc *, unsigned long cl,
--
include/net/sch_generic.h-294-	int			(*dump)(struct Qdisc *, unsigned long,
include/net/sch_generic.h:295:					struct sk_buff *skb, struct tcmsg*);
include/net/sch_generic.h-296-	int			(*dump_stats)(struct Qdisc *, unsigned long,
--
include/net/sch_generic.h=357=struct tcf_proto_ops {
--
include/net/sch_generic.h-403-	int			(*dump)(struct net*, struct tcf_proto*, void *,
include/net/sch_generic.h:404:					struct sk_buff *skb, struct tcmsg*,
include/net/sch_generic.h-405-					bool);
--
include/net/sch_generic.h-408-					      struct sk_buff *skb,
include/net/sch_generic.h:409:					      struct tcmsg *t, bool rtnl_held);
include/net/sch_generic.h-410-	int			(*tmplt_dump)(struct sk_buff *skb,
--
include/net/sch_priv.h=17=struct netdev_queue *mq_select_queue(struct Qdisc *sch,
include/net/sch_priv.h:18:				     struct tcmsg *tcm);
include/net/sch_priv.h-19-struct Qdisc *mq_leaf(struct Qdisc *sch, unsigned long cl);
--
include/net/sch_priv.h=21=int mq_dump_class(struct Qdisc *sch, unsigned long cl,
include/net/sch_priv.h:22:		  struct sk_buff *skb, struct tcmsg *tcm);
include/net/sch_priv.h-23-int mq_dump_class_stats(struct Qdisc *sch, unsigned long cl,
--
include/uapi/linux/rtnetlink.h=605=struct prefix_cacheinfo {
--
include/uapi/linux/rtnetlink.h-614-
include/uapi/linux/rtnetlink.h:615:struct tcmsg {
include/uapi/linux/rtnetlink.h-616-	unsigned char	tcm_family;
--
include/uapi/linux/rtnetlink.h=635=enum {
--
include/uapi/linux/rtnetlink.h-662-
include/uapi/linux/rtnetlink.h:663:#define TCA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
include/uapi/linux/rtnetlink.h:664:#define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
include/uapi/linux/rtnetlink.h-665-
--
net/sched/cls_api.c=2050=static int tcf_fill_node(struct net *net, struct sk_buff *skb,
--
net/sched/cls_api.c-2056-{
net/sched/cls_api.c:2057:	struct tcmsg *tcm;
net/sched/cls_api.c-2058-	struct nlmsghdr  *nlh;
--
net/sched/cls_api.c=2236=static int tc_new_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-2241-	char name[IFNAMSIZ];
net/sched/cls_api.c:2242:	struct tcmsg *t;
net/sched/cls_api.c-2243-	u32 protocol;
--
net/sched/cls_api.c=2472=static int tc_del_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-2477-	char name[IFNAMSIZ];
net/sched/cls_api.c:2478:	struct tcmsg *t;
net/sched/cls_api.c-2479-	u32 protocol;
--
net/sched/cls_api.c=2631=static int tc_get_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-2636-	char name[IFNAMSIZ];
net/sched/cls_api.c:2637:	struct tcmsg *t;
net/sched/cls_api.c-2638-	u32 protocol;
--
net/sched/cls_api.c=2777=static bool tcf_chain_dump(struct tcf_chain *chain, struct Qdisc *q, u32 parent,
--
net/sched/cls_api.c-2782-	struct tcf_block *block = chain->block;
net/sched/cls_api.c:2783:	struct tcmsg *tcm = nlmsg_data(cb->nlh);
net/sched/cls_api.c-2784-	struct tcf_proto *tp, *tp_prev;
--
net/sched/cls_api.c=2844=static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
--
net/sched/cls_api.c-2850-	struct tcf_block *block;
net/sched/cls_api.c:2851:	struct tcmsg *tcm = nlmsg_data(cb->nlh);
net/sched/cls_api.c-2852-	bool terse_dump = false;
--
net/sched/cls_api.c=2948=static int tc_chain_fill_node(const struct tcf_proto_ops *tmplt_ops,
--
net/sched/cls_api.c-2957-	struct nlmsghdr *nlh;
net/sched/cls_api.c:2958:	struct tcmsg *tcm;
net/sched/cls_api.c-2959-	void *priv;
--
net/sched/cls_api.c=3113=static int tc_ctl_chain(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/cls_api.c-3117-	struct nlattr *tca[TCA_MAX + 1];
net/sched/cls_api.c:3118:	struct tcmsg *t;
net/sched/cls_api.c-3119-	u32 parent;
--
net/sched/cls_api.c=3245=static int tc_dump_chain(struct sk_buff *skb, struct netlink_callback *cb)
--
net/sched/cls_api.c-3250-	struct tcf_block *block;
net/sched/cls_api.c:3251:	struct tcmsg *tcm = nlmsg_data(cb->nlh);
net/sched/cls_api.c-3252-	struct tcf_chain *chain;
--
net/sched/cls_basic.c=269=static int basic_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_basic.c:270:		      struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_basic.c-271-{
--
net/sched/cls_bpf.c=579=static int cls_bpf_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_bpf.c:580:			struct sk_buff *skb, struct tcmsg *tm, bool rtnl_held)
net/sched/cls_bpf.c-581-{
--
net/sched/cls_cgroup.c=172=static int cls_cgroup_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_cgroup.c:173:			   struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_cgroup.c-174-{
--
net/sched/cls_flow.c=635=static int flow_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_flow.c:636:		     struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_flow.c-637-{
--
net/sched/cls_flower.c=3684=static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_flower.c:3685:		   struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_flower.c-3686-{
--
net/sched/cls_flower.c=3742=static int fl_terse_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_flower.c:3743:			 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_flower.c-3744-{
--
net/sched/cls_fw.c=382=static int fw_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_fw.c:383:		   struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_fw.c-384-{
--
net/sched/cls_matchall.c=328=static int mall_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_matchall.c:329:		     struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_matchall.c-330-{
--
net/sched/cls_route.c=604=static int route4_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_route.c:605:		       struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_route.c-606-{
--
net/sched/cls_u32.c=1345=static int u32_dump(struct net *net, struct tcf_proto *tp, void *fh,
net/sched/cls_u32.c:1346:		    struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
net/sched/cls_u32.c-1347-{
--
net/sched/sch_api.c=898=static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid,
--
net/sched/sch_api.c-903-	struct gnet_stats_queue __percpu *cpu_qstats = NULL;
net/sched/sch_api.c:904:	struct tcmsg *tcm;
net/sched/sch_api.c-905-	struct nlmsghdr  *nlh;
--
net/sched/sch_api.c=982=static bool tc_qdisc_dump_ignore(struct Qdisc *q, bool dump_invisible,
net/sched/sch_api.c:983:				 const struct tcmsg *tcm)
net/sched/sch_api.c-984-{
--
net/sched/sch_api.c=1471=static int __tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1474-			  struct nlattr *tca[TCA_MAX + 1],
net/sched/sch_api.c:1475:			  struct tcmsg *tcm)
net/sched/sch_api.c-1476-{
--
net/sched/sch_api.c=1541=static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1544-	struct net *net = sock_net(skb->sk);
net/sched/sch_api.c:1545:	struct tcmsg *tcm = nlmsg_data(n);
net/sched/sch_api.c-1546-	struct nlattr *tca[TCA_MAX + 1];
--
net/sched/sch_api.c=1585=static int __tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1588-			     struct nlattr *tca[TCA_MAX + 1],
net/sched/sch_api.c:1589:			     struct tcmsg *tcm)
net/sched/sch_api.c-1590-{
--
net/sched/sch_api.c=1799=static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-1804-	struct net_device *dev;
net/sched/sch_api.c:1805:	struct tcmsg *tcm;
net/sched/sch_api.c-1806-	int err;
--
net/sched/sch_api.c=1827=static int tc_dump_qdisc_root(struct Qdisc *root, struct sk_buff *skb,
--
net/sched/sch_api.c-1833-	int ret = 0, q_idx = *q_idx_p;
net/sched/sch_api.c:1834:	const struct tcmsg *tcm;
net/sched/sch_api.c-1835-	struct Qdisc *q;
--
net/sched/sch_api.c=1885=static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb)
--
net/sched/sch_api.c-1893-	} *ctx = (void *)cb->ctx;
net/sched/sch_api.c:1894:	const struct tcmsg *tcm;
net/sched/sch_api.c-1895-	struct net_device *dev;
--
net/sched/sch_api.c-1900-
net/sched/sch_api.c:1901:	err = nlmsg_parse_deprecated(nlh, sizeof(struct tcmsg), tca, TCA_MAX,
net/sched/sch_api.c-1902-				     rtm_tca_policy, cb->extack);
--
net/sched/sch_api.c=1953=static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
--
net/sched/sch_api.c-1956-{
net/sched/sch_api.c:1957:	struct tcmsg *tcm;
net/sched/sch_api.c-1958-	struct nlmsghdr  *nlh;
--
net/sched/sch_api.c=2174=static int __tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-2177-			   struct nlattr *tca[TCA_MAX + 1],
net/sched/sch_api.c:2178:			   struct tcmsg *tcm)
net/sched/sch_api.c-2179-{
--
net/sched/sch_api.c=2304=static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n,
--
net/sched/sch_api.c-2307-	struct net *net = sock_net(skb->sk);
net/sched/sch_api.c:2308:	struct tcmsg *tcm = nlmsg_data(n);
net/sched/sch_api.c-2309-	struct nlattr *tca[TCA_MAX + 1];
--
net/sched/sch_api.c=2345=static int tc_dump_tclass_qdisc(struct Qdisc *q, struct sk_buff *skb,
net/sched/sch_api.c:2346:				struct tcmsg *tcm, struct netlink_callback *cb,
net/sched/sch_api.c-2347-				int *t_p, int s_t)
--
net/sched/sch_api.c=2374=static int tc_dump_tclass_root(struct Qdisc *root, struct sk_buff *skb,
net/sched/sch_api.c:2375:			       struct tcmsg *tcm, struct netlink_callback *cb,
net/sched/sch_api.c-2376-			       int *t_p, int s_t, bool recur)
--
net/sched/sch_api.c=2405=static int __tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb,
net/sched/sch_api.c:2406:			    struct tcmsg *tcm, struct net_device *dev)
net/sched/sch_api.c-2407-{
--
net/sched/sch_api.c=2430=static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb)
net/sched/sch_api.c-2431-{
net/sched/sch_api.c:2432:	struct tcmsg *tcm = nlmsg_data(cb->nlh);
net/sched/sch_api.c-2433-	struct net *net = sock_net(skb->sk);
--
net/sched/sch_cake.c=3121=static int cake_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_cake.c:3122:			   struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_cake.c-3123-{
--
net/sched/sch_cbs.c=492=static int cbs_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_cbs.c:493:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_cbs.c-494-{
--
net/sched/sch_drr.c=239=static int drr_dump_class(struct Qdisc *sch, unsigned long arg,
net/sched/sch_drr.c:240:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_drr.c-241-{
--
net/sched/sch_ets.c=306=static int ets_class_dump(struct Qdisc *sch, unsigned long arg,
net/sched/sch_ets.c:307:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_ets.c-308-{
--
net/sched/sch_fq_codel.c=677=static int fq_codel_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_fq_codel.c:678:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_fq_codel.c-679-{
--
net/sched/sch_hfsc.c=1308=hfsc_dump_class(struct Qdisc *sch, unsigned long arg, struct sk_buff *skb,
net/sched/sch_hfsc.c:1309:		struct tcmsg *tcm)
net/sched/sch_hfsc.c-1310-{
--
net/sched/sch_htb.c=1240=static int htb_dump_class(struct Qdisc *sch, unsigned long arg,
net/sched/sch_htb.c:1241:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_htb.c-1242-{
--
net/sched/sch_htb.c=1366=static struct netdev_queue *
net/sched/sch_htb.c:1367:htb_select_queue(struct Qdisc *sch, struct tcmsg *tcm)
net/sched/sch_htb.c-1368-{
--
net/sched/sch_mq.c=202=struct netdev_queue *mq_select_queue(struct Qdisc *sch,
net/sched/sch_mq.c:203:				     struct tcmsg *tcm)
net/sched/sch_mq.c-204-{
--
net/sched/sch_mq.c=253=int mq_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_mq.c:254:		  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_mq.c-255-{
--
net/sched/sch_mqprio.c=653=static int mqprio_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_mqprio.c:654:			 struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_mqprio.c-655-{
--
net/sched/sch_mqprio.c=750=static struct netdev_queue *mqprio_select_queue(struct Qdisc *sch,
net/sched/sch_mqprio.c:751:						struct tcmsg *tcm)
net/sched/sch_mqprio.c-752-{
--
net/sched/sch_multiq.c=323=static int multiq_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_multiq.c:324:			     struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_multiq.c-325-{
--
net/sched/sch_netem.c=1352=static int netem_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_netem.c:1353:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_netem.c-1354-{
--
net/sched/sch_prio.c=345=static int prio_dump_class(struct Qdisc *sch, unsigned long cl, struct sk_buff *skb,
net/sched/sch_prio.c:346:			   struct tcmsg *tcm)
net/sched/sch_prio.c-347-{
--
net/sched/sch_qfq.c=627=static int qfq_dump_class(struct Qdisc *sch, unsigned long arg,
net/sched/sch_qfq.c:628:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_qfq.c-629-{
--
net/sched/sch_red.c=484=static int red_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_red.c:485:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_red.c-486-{
--
net/sched/sch_sfb.c=625=static int sfb_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_sfb.c:626:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_sfb.c-627-{
--
net/sched/sch_sfq.c=900=static int sfq_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_sfq.c:901:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_sfq.c-902-{
--
net/sched/sch_skbprio.c=242=static int skbprio_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_skbprio.c:243:			     struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_skbprio.c-244-{
--
net/sched/sch_taprio.c=2478=static int taprio_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_taprio.c:2479:			     struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_taprio.c-2480-{
--
net/sched/sch_taprio.c=2525=static struct netdev_queue *taprio_select_queue(struct Qdisc *sch,
net/sched/sch_taprio.c:2526:						struct tcmsg *tcm)
net/sched/sch_taprio.c-2527-{
--
net/sched/sch_tbf.c=557=static int tbf_dump_class(struct Qdisc *sch, unsigned long cl,
net/sched/sch_tbf.c:558:			  struct sk_buff *skb, struct tcmsg *tcm)
net/sched/sch_tbf.c-559-{
--
tools/bpf/bpftool/main.h=250=struct ifinfomsg;
tools/bpf/bpftool/main.h:251:struct tcmsg;
tools/bpf/bpftool/main.h-252-int do_xdp_dump(struct ifinfomsg *ifinfo, struct nlattr **tb);
tools/bpf/bpftool/main.h:253:int do_filter_dump(struct tcmsg *ifinfo, struct nlattr **tb, const char *kind,
tools/bpf/bpftool/main.h-254-		   const char *devname, int ifindex);
--
tools/bpf/bpftool/net.c=213=static int __dump_class_nlmsg(struct nlmsghdr *nlh,
--
tools/bpf/bpftool/net.c-217-	struct nlattr *tb[TCA_MAX + 1], *attr;
tools/bpf/bpftool/net.c:218:	struct tcmsg *t = NLMSG_DATA(nlh);
tools/bpf/bpftool/net.c-219-	int len;
--
tools/bpf/bpftool/net.c=229=static int netlink_get_class(int sock, unsigned int nl_pid, int ifindex,
--
tools/bpf/bpftool/net.c-233-		struct nlmsghdr nlh;
tools/bpf/bpftool/net.c:234:		struct tcmsg t;
tools/bpf/bpftool/net.c-235-	} req = {
tools/bpf/bpftool/net.c:236:		.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
tools/bpf/bpftool/net.c-237-		.nlh.nlmsg_type = RTM_GETTCLASS,
--
tools/bpf/bpftool/net.c=252=static int __dump_qdisc_nlmsg(struct nlmsghdr *nlh,
--
tools/bpf/bpftool/net.c-256-	struct nlattr *tb[TCA_MAX + 1], *attr;
tools/bpf/bpftool/net.c:257:	struct tcmsg *t = NLMSG_DATA(nlh);
tools/bpf/bpftool/net.c-258-	int len;
--
tools/bpf/bpftool/net.c=268=static int netlink_get_qdisc(int sock, unsigned int nl_pid, int ifindex,
--
tools/bpf/bpftool/net.c-272-		struct nlmsghdr nlh;
tools/bpf/bpftool/net.c:273:		struct tcmsg t;
tools/bpf/bpftool/net.c-274-	} req = {
tools/bpf/bpftool/net.c:275:		.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
tools/bpf/bpftool/net.c-276-		.nlh.nlmsg_type = RTM_GETQDISC,
--
tools/bpf/bpftool/net.c=291=static int __dump_filter_nlmsg(struct nlmsghdr *nlh,
--
tools/bpf/bpftool/net.c-295-	struct nlattr *tb[TCA_MAX + 1], *attr;
tools/bpf/bpftool/net.c:296:	struct tcmsg *t = NLMSG_DATA(nlh);
tools/bpf/bpftool/net.c-297-	int len;
--
tools/bpf/bpftool/net.c=307=static int netlink_get_filter(int sock, unsigned int nl_pid, int ifindex, int handle,
--
tools/bpf/bpftool/net.c-311-		struct nlmsghdr nlh;
tools/bpf/bpftool/net.c:312:		struct tcmsg t;
tools/bpf/bpftool/net.c-313-	} req = {
tools/bpf/bpftool/net.c:314:		.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
tools/bpf/bpftool/net.c-315-		.nlh.nlmsg_type = RTM_GETTFILTER,
--
tools/bpf/bpftool/net.c=398=static int dump_class_qdisc_nlmsg(void *cookie, void *msg, struct nlattr **tb)
--
tools/bpf/bpftool/net.c-400-	struct bpf_tcinfo_t *tcinfo = cookie;
tools/bpf/bpftool/net.c:401:	struct tcmsg *info = msg;
tools/bpf/bpftool/net.c-402-	struct tc_kind_handle *tmp;
--
tools/bpf/bpftool/net.c=434=static int dump_filter_nlmsg(void *cookie, void *msg, struct nlattr **tb)
--
tools/bpf/bpftool/net.c-437-
tools/bpf/bpftool/net.c:438:	return do_filter_dump((struct tcmsg *)msg, tb, filter_info->kind,
tools/bpf/bpftool/net.c-439-			      filter_info->devname, filter_info->ifindex);
--
tools/bpf/bpftool/netlink_dumper.c=138=static int do_bpf_filter_dump(struct nlattr *attr)
--
tools/bpf/bpftool/netlink_dumper.c-160-
tools/bpf/bpftool/netlink_dumper.c:161:int do_filter_dump(struct tcmsg *info, struct nlattr **tb, const char *kind,
tools/bpf/bpftool/netlink_dumper.c-162-		   const char *devname, int ifindex)
--
tools/include/uapi/linux/rtnetlink.h=605=struct prefix_cacheinfo {
--
tools/include/uapi/linux/rtnetlink.h-614-
tools/include/uapi/linux/rtnetlink.h:615:struct tcmsg {
tools/include/uapi/linux/rtnetlink.h-616-	unsigned char	tcm_family;
--
tools/include/uapi/linux/rtnetlink.h=635=enum {
--
tools/include/uapi/linux/rtnetlink.h-662-
tools/include/uapi/linux/rtnetlink.h:663:#define TCA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
tools/include/uapi/linux/rtnetlink.h:664:#define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
tools/include/uapi/linux/rtnetlink.h-665-
--
tools/lib/bpf/netlink.c=597=static int tc_qdisc_modify(struct bpf_tc_hook *hook, int cmd, int flags)
--
tools/lib/bpf/netlink.c-607-	memset(&req, 0, sizeof(req));
tools/lib/bpf/netlink.c:608:	req.nh.nlmsg_len   = NLMSG_LENGTH(sizeof(struct tcmsg));
tools/lib/bpf/netlink.c-609-	req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
--
tools/lib/bpf/netlink.c=667=struct bpf_cb_ctx {
--
tools/lib/bpf/netlink.c-671-
tools/lib/bpf/netlink.c:672:static int __get_tc_info(void *cookie, struct tcmsg *tc, struct nlattr **tb,
tools/lib/bpf/netlink.c-673-			 bool unicast)
--
tools/lib/bpf/netlink.c=697=static int get_tc_info(struct nlmsghdr *nh, libbpf_dump_nlmsg_t fn,
--
tools/lib/bpf/netlink.c-699-{
tools/lib/bpf/netlink.c:700:	struct tcmsg *tc = NLMSG_DATA(nh);
tools/lib/bpf/netlink.c-701-	struct nlattr *tb[TCA_MAX + 1];
--
tools/lib/bpf/netlink.c=734=int bpf_tc_attach(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)
--
tools/lib/bpf/netlink.c-767-	memset(&req, 0, sizeof(req));
tools/lib/bpf/netlink.c:768:	req.nh.nlmsg_len   = NLMSG_LENGTH(sizeof(struct tcmsg));
tools/lib/bpf/netlink.c-769-	req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_CREATE |
--
tools/lib/bpf/netlink.c=808=static int __bpf_tc_detach(const struct bpf_tc_hook *hook,
--
tools/lib/bpf/netlink.c-844-	memset(&req, 0, sizeof(req));
tools/lib/bpf/netlink.c:845:	req.nh.nlmsg_len   = NLMSG_LENGTH(sizeof(struct tcmsg));
tools/lib/bpf/netlink.c-846-	req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
--
tools/lib/bpf/netlink.c=881=int bpf_tc_query(const struct bpf_tc_hook *hook, struct bpf_tc_opts *opts)
--
tools/lib/bpf/netlink.c-911-	memset(&req, 0, sizeof(req));
tools/lib/bpf/netlink.c:912:	req.nh.nlmsg_len   = NLMSG_LENGTH(sizeof(struct tcmsg));
tools/lib/bpf/netlink.c-913-	req.nh.nlmsg_flags = NLM_F_REQUEST;
--
tools/lib/bpf/nlattr.h=57=struct libbpf_nla_req {
--
tools/lib/bpf/nlattr.h-60-		struct ifinfomsg ifinfo;
tools/lib/bpf/nlattr.h:61:		struct tcmsg tc;
tools/lib/bpf/nlattr.h-62-		struct genlmsghdr gnl;
--
tools/testing/selftests/bpf/prog_tests/tc_links.c=1792=struct qdisc_req {
tools/testing/selftests/bpf/prog_tests/tc_links.c-1793-	struct nlmsghdr  n;
tools/testing/selftests/bpf/prog_tests/tc_links.c:1794:	struct tcmsg     t;
tools/testing/selftests/bpf/prog_tests/tc_links.c-1795-	char             buf[1024];
--
tools/testing/selftests/bpf/prog_tests/tc_links.c=1798=static int qdisc_replace(int ifindex, const char *kind, bool block)
--
tools/testing/selftests/bpf/prog_tests/tc_links.c-1808-	memset(&req, 0, sizeof(req));
tools/testing/selftests/bpf/prog_tests/tc_links.c:1809:	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
tools/testing/selftests/bpf/prog_tests/tc_links.c-1810-	req.n.nlmsg_flags = NLM_F_CREATE | NLM_F_REPLACE | NLM_F_REQUEST;
]

810/7 2026/08/15 19:34 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 22161
							output: 80
							thoughts: 164
						

Thoughts:
**My Thought Process on Kernel Networking Structures**

My immediate priority is to gain a precise understanding of the fundamental building blocks used within the Linux kernel's traffic control (tc) subsystem, specifically focusing on the data structures and macros that define how queuing disciplines and their parameters are represented and communicated. To achieve this, I need to delve into the kernel's header files, as they contain the authoritative definitions.

My strategy is to examine two key files: `include/uapi/linux/pkt_sched.h` and `include/uapi/linux/rtnetlink.h`. These are critical because they house the user-space API definitions for packet scheduling and the Netlink interface, respectively, which are the primary mechanisms for interacting with the tc subsystem.

Within `include/uapi/linux/pkt_sched.h`, I'm particularly interested in understanding how hierarchical identifiers are constructed and interpreted. Therefore, I need to find the exact definitions of `TC_H_MAKE` and `TC_H_ROOT`. These macros are likely involved in manipulating or creating attribute identifiers within the tc framework, and understanding their mechanics is essential for correctly parsing or constructing tc messages.

Simultaneously, `include/uapi/linux/rtnetlink.h` will be crucial for understanding the Netlink message format used for tc operations. I need to identify the definition of `struct tcmsg`. This structure will undoubtedly contain fields relevant to the traffic control object being manipulated, such as its type, index, and potentially other identifying information.

Furthermore, I need to investigate the specific options structures for common queuing disciplines. I'll be looking for `struct tc_prio_qopt` and `struct tc_sfq_qopt`. These structures will detail the configuration parameters specific to the Priority queuing discipline and the Stochastic Fairness Queuing discipline, respectively. Understanding their members will allow me to interpret or set the parameters for these disciplines.

Finally, to fully grasp the Netlink communication, I must identify any relevant Netlink macros or generic TC macros that govern the structure and interpretation of the messages. Macros like `TCA_KIND` and `TCA_OPTIONS` are likely to be fundamental in indicating the type of tc object or its associated attributes, enabling the Netlink framework to correctly process the data.

My plan for accessing this information is straightforward and relies on a reliable file reading utility. I will use `read-file` to specifically examine `include/uapi/linux/pkt_sched.h` around line 50, as this is often where core definitions like `TC_H_MAKE` and `TC_H_ROOT` are located. Concurrently, I'll use `read-file` to inspect `include/uapi/linux/rtnetlink.h` around line 615, which is a reasonable proximity for the `struct tcmsg` definition and related Netlink attributes. This focused approach ensures I extract the most pertinent information without getting bogged down in unrelated code.


811/7 2026/08/15 19:34 tool read-file
0m Args:
map[File:include/uapi/linux/pkt_sched.h FirstLine:40 LineCount:120]

Results:
map[Contents:  40:		__u32	bps;			/* Current flow byte rate */
  41:		__u32	pps;			/* Current flow packet rate */
  42:		__u32	qlen;
  43:		__u32	backlog;
  44:	};
  45:	
  46:	struct tc_estimator {
  47:		signed char	interval;
  48:		unsigned char	ewma_log;
  49:	};
  50:	
  51:	/* "Handles"
  52:	   ---------
  53:	
  54:	    All the traffic control objects have 32bit identifiers, or "handles".
  55:	
  56:	    They can be considered as opaque numbers from user API viewpoint,
  57:	    but actually they always consist of two fields: major and
  58:	    minor numbers, which are interpreted by kernel specially,
  59:	    that may be used by applications, though not recommended.
  60:	
  61:	    F.e. qdisc handles always have minor number equal to zero,
  62:	    classes (or flows) have major equal to parent qdisc major, and
  63:	    minor uniquely identifying class inside qdisc.
  64:	
  65:	    Macros to manipulate handles:
  66:	 */
  67:	
  68:	#define TC_H_MAJ_MASK (0xFFFF0000U)
  69:	#define TC_H_MIN_MASK (0x0000FFFFU)
  70:	#define TC_H_MAJ(h) ((h)&TC_H_MAJ_MASK)
  71:	#define TC_H_MIN(h) ((h)&TC_H_MIN_MASK)
  72:	#define TC_H_MAKE(maj,min) (((maj)&TC_H_MAJ_MASK)|((min)&TC_H_MIN_MASK))
  73:	
  74:	#define TC_H_UNSPEC	(0U)
  75:	#define TC_H_ROOT	(0xFFFFFFFFU)
  76:	#define TC_H_INGRESS    (0xFFFFFFF1U)
  77:	#define TC_H_CLSACT	TC_H_INGRESS
  78:	
  79:	#define TC_H_MIN_PRIORITY	0xFFE0U
  80:	#define TC_H_MIN_INGRESS	0xFFF2U
  81:	#define TC_H_MIN_EGRESS		0xFFF3U
  82:	
  83:	/* Need to corrospond to iproute2 tc/tc_core.h "enum link_layer" */
  84:	enum tc_link_layer {
  85:		TC_LINKLAYER_UNAWARE, /* Indicate unaware old iproute2 util */
  86:		TC_LINKLAYER_ETHERNET,
  87:		TC_LINKLAYER_ATM,
  88:	};
  89:	#define TC_LINKLAYER_MASK 0x0F /* limit use to lower 4 bits */
  90:	
  91:	struct tc_ratespec {
  92:		unsigned char	cell_log;
  93:		__u8		linklayer; /* lower 4 bits */
  94:		unsigned short	overhead;
  95:		short		cell_align;
  96:		unsigned short	mpu;
  97:		__u32		rate;
  98:	};
  99:	
 100:	#define TC_RTAB_SIZE	1024
 101:	
 102:	struct tc_sizespec {
 103:		unsigned char	cell_log;
 104:		unsigned char	size_log;
 105:		short		cell_align;
 106:		int		overhead;
 107:		unsigned int	linklayer;
 108:		unsigned int	mpu;
 109:		unsigned int	mtu;
 110:		unsigned int	tsize;
 111:	};
 112:	
 113:	enum {
 114:		TCA_STAB_UNSPEC,
 115:		TCA_STAB_BASE,
 116:		TCA_STAB_DATA,
 117:		__TCA_STAB_MAX
 118:	};
 119:	
 120:	#define TCA_STAB_MAX (__TCA_STAB_MAX - 1)
 121:	
 122:	/* FIFO section */
 123:	
 124:	struct tc_fifo_qopt {
 125:		__u32	limit;	/* Queue length: bytes for bfifo, packets for pfifo */
 126:	};
 127:	
 128:	/* SKBPRIO section */
 129:	
 130:	/*
 131:	 * Priorities go from zero to (SKBPRIO_MAX_PRIORITY - 1).
 132:	 * SKBPRIO_MAX_PRIORITY should be at least 64 in order for skbprio to be able
 133:	 * to map one to one the DS field of IPV4 and IPV6 headers.
 134:	 * Memory allocation grows linearly with SKBPRIO_MAX_PRIORITY.
 135:	 */
 136:	
 137:	#define SKBPRIO_MAX_PRIORITY 64
 138:	
 139:	struct tc_skbprio_qopt {
]

812/7 2026/08/15 19:34 tool read-file
0m Args:
map[File:include/uapi/linux/rtnetlink.h FirstLine:610 LineCount:40]

Results:
map[Contents: 610:	
 611:	/*****************************************************************
 612:	 *		Traffic control messages.
 613:	 ****/
 614:	
 615:	struct tcmsg {
 616:		unsigned char	tcm_family;
 617:		unsigned char	tcm__pad1;
 618:		unsigned short	tcm__pad2;
 619:		int		tcm_ifindex;
 620:		__u32		tcm_handle;
 621:		__u32		tcm_parent;
 622:	/* tcm_block_index is used instead of tcm_parent
 623:	 * in case tcm_ifindex == TCM_IFINDEX_MAGIC_BLOCK
 624:	 */
 625:	#define tcm_block_index tcm_parent
 626:		__u32		tcm_info;
 627:	};
 628:	
 629:	/* For manipulation of filters in shared block, tcm_ifindex is set to
 630:	 * TCM_IFINDEX_MAGIC_BLOCK, and tcm_parent is aliased to tcm_block_index
 631:	 * which is the block index.
 632:	 */
 633:	#define TCM_IFINDEX_MAGIC_BLOCK (0xFFFFFFFFU)
 634:	
 635:	enum {
 636:		TCA_UNSPEC,
 637:		TCA_KIND,
 638:		TCA_OPTIONS,
 639:		TCA_STATS,
 640:		TCA_XSTATS,
 641:		TCA_RATE,
 642:		TCA_FCNT,
 643:		TCA_STATS2,
 644:		TCA_STAB,
 645:		TCA_PAD,
 646:		TCA_DUMP_INVISIBLE,
 647:		TCA_CHAIN,
 648:		TCA_HW_OFFLOAD,
 649:		TCA_INGRESS_BLOCK,
]

813/7 2026/08/15 19:34 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 24412
							output: 40
							thoughts: 46
						

Thoughts:
**A Deep Dive into Packet Scheduling Options in the Linux Kernel**

My current focus is on understanding the intricacies of packet scheduling within the Linux kernel, and to that end, I'm delving into the `include/uapi/linux/pkt_sched.h` header file. My primary objective is to gain a thorough grasp of the structures that define different queuing disciplines, specifically the `struct tc_prio_qopt` and `struct tc_sfq_qopt`. I anticipate that examining these definitions will provide crucial insights into the configuration parameters and operational characteristics of the Priority Queueing (prio) and Stochastic Fairness Queuing (sfq) schedulers, respectively. This exploration is a necessary step in solidifying my understanding of how these mechanisms manage and prioritize network traffic, which is fundamental to optimizing network performance and ensuring predictable behavior. I'm looking to see precisely what knobs and levers are available for tuning these schedulers through their respective option structures.


814/7 2026/08/15 19:34 tool read-file
0m Args:
map[File:include/uapi/linux/pkt_sched.h FirstLine:145 LineCount:80]

Results:
map[Contents: 145:	#define TCQ_PRIO_BANDS	16
 146:	#define TCQ_MIN_PRIO_BANDS 2
 147:	
 148:	struct tc_prio_qopt {
 149:		int	bands;			/* Number of bands */
 150:		__u8	priomap[TC_PRIO_MAX+1];	/* Map: logical priority -> PRIO band */
 151:	};
 152:	
 153:	/* MULTIQ section */
 154:	
 155:	struct tc_multiq_qopt {
 156:		__u16	bands;			/* Number of bands */
 157:		__u16	max_bands;		/* Maximum number of queues */
 158:	};
 159:	
 160:	/* PLUG section */
 161:	
 162:	#define TCQ_PLUG_BUFFER                0
 163:	#define TCQ_PLUG_RELEASE_ONE           1
 164:	#define TCQ_PLUG_RELEASE_INDEFINITE    2
 165:	#define TCQ_PLUG_LIMIT                 3
 166:	
 167:	struct tc_plug_qopt {
 168:		/* TCQ_PLUG_BUFFER: Inset a plug into the queue and
 169:		 *  buffer any incoming packets
 170:		 * TCQ_PLUG_RELEASE_ONE: Dequeue packets from queue head
 171:		 *   to beginning of the next plug.
 172:		 * TCQ_PLUG_RELEASE_INDEFINITE: Dequeue all packets from queue.
 173:		 *   Stop buffering packets until the next TCQ_PLUG_BUFFER
 174:		 *   command is received (just act as a pass-thru queue).
 175:		 * TCQ_PLUG_LIMIT: Increase/decrease queue size
 176:		 */
 177:		int             action;
 178:		__u32           limit;
 179:	};
 180:	
 181:	/* TBF section */
 182:	
 183:	struct tc_tbf_qopt {
 184:		struct tc_ratespec rate;
 185:		struct tc_ratespec peakrate;
 186:		__u32		limit;
 187:		__u32		buffer;
 188:		__u32		mtu;
 189:	};
 190:	
 191:	enum {
 192:		TCA_TBF_UNSPEC,
 193:		TCA_TBF_PARMS,
 194:		TCA_TBF_RTAB,
 195:		TCA_TBF_PTAB,
 196:		TCA_TBF_RATE64,
 197:		TCA_TBF_PRATE64,
 198:		TCA_TBF_BURST,
 199:		TCA_TBF_PBURST,
 200:		TCA_TBF_PAD,
 201:		__TCA_TBF_MAX,
 202:	};
 203:	
 204:	#define TCA_TBF_MAX (__TCA_TBF_MAX - 1)
 205:	
 206:	
 207:	/* TEQL section */
 208:	
 209:	/* TEQL does not require any parameters */
 210:	
 211:	/* SFQ section */
 212:	
 213:	struct tc_sfq_qopt {
 214:		unsigned	quantum;	/* Bytes per round allocated to flow */
 215:		int		perturb_period;	/* Period of hash perturbation */
 216:		__u32		limit;		/* Maximal packets in queue */
 217:		unsigned	divisor;	/* Hash divisor  */
 218:		unsigned	flows;		/* Maximal number of flows  */
 219:	};
 220:	
 221:	struct tc_sfqred_stats {
 222:		__u32           prob_drop;      /* Early drops, below max threshold */
 223:		__u32           forced_drop;	/* Early drops, after max threshold */
 224:		__u32           prob_mark;      /* Marked packets, below max threshold */
]

815/7 2026/08/15 19:34 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 25685
							output: 20
							thoughts: 40
						

Thoughts:
**My Thought Process Regarding `TC_PRIO_MAX`**

Right, so I need to pinpoint the definition of `TC_PRIO_MAX` within the kernel source. My immediate approach is to leverage the power of `grep` for a swift and direct search. I'll execute a command to scan the relevant kernel directories, aiming to locate exactly where this constant is declared. This will give me a clear understanding of its scope and potential dependencies.


816/7 2026/08/15 19:34 tool grepper
0m Args:
map[Expression:TC_PRIO_MAX]

Results:
map[Output:include/net/pkt_cls.h=969=struct tc_prio_qopt_offload_params {
include/net/pkt_cls.h-970-	int bands;
include/net/pkt_cls.h:971:	u8 priomap[TC_PRIO_MAX + 1];
include/net/pkt_cls.h-972-	/* At the point of un-offloading the Qdisc, the reported backlog and
--
include/net/pkt_cls.h=1011=struct tc_ets_qopt_offload_replace_params {
include/net/pkt_cls.h-1012-	unsigned int bands;
include/net/pkt_cls.h:1013:	u8 priomap[TC_PRIO_MAX + 1];
include/net/pkt_cls.h-1014-	unsigned int quanta[TCQ_ETS_MAX_BANDS];	/* 0 for strict bands. */
--
include/net/sch_generic.h=633=extern struct Qdisc_ops pfifo_fast_ops;
include/net/sch_generic.h:634:extern const u8 sch_default_prio2band[TC_PRIO_MAX + 1];
include/net/sch_generic.h-635-extern struct Qdisc_ops mq_qdisc_ops;
--
include/uapi/linux/pkt_sched.h-27-
include/uapi/linux/pkt_sched.h:28:#define TC_PRIO_MAX			15
include/uapi/linux/pkt_sched.h-29-
--
include/uapi/linux/pkt_sched.h=148=struct tc_prio_qopt {
include/uapi/linux/pkt_sched.h-149-	int	bands;			/* Number of bands */
include/uapi/linux/pkt_sched.h:150:	__u8	priomap[TC_PRIO_MAX+1];	/* Map: logical priority -> PRIO band */
include/uapi/linux/pkt_sched.h-151-};
--
net/sched/sch_ets.c=48=struct ets_sched {
--
net/sched/sch_ets.c-53-	unsigned int nstrict;
net/sched/sch_ets.c:54:	u8 prio2band[TC_PRIO_MAX + 1];
net/sched/sch_ets.c-55-	struct ets_class classes[TCQ_ETS_MAX_BANDS];
--
net/sched/sch_ets.c=382=static struct ets_class *ets_classify(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_ets.c-408-				band = 0;
net/sched/sch_ets.c:409:			return &q->classes[q->prio2band[band & TC_PRIO_MAX]];
net/sched/sch_ets.c-410-		}
--
net/sched/sch_ets.c=507=static int ets_qdisc_priomap_parse(struct nlattr *priomap_attr,
--
net/sched/sch_ets.c-525-		case TCA_ETS_PRIOMAP_BAND:
net/sched/sch_ets.c:526:			if (prio > TC_PRIO_MAX) {
net/sched/sch_ets.c-527-				NL_SET_ERR_MSG_MOD(extack, "Too many priorities in ETS priomap");
--
net/sched/sch_ets.c=583=static int ets_qdisc_change(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_ets.c-590-	unsigned int oldbands = q->nbands;
net/sched/sch_ets.c:591:	u8 priomap[TC_PRIO_MAX + 1];
net/sched/sch_ets.c-592-	unsigned int nstrict = 0;
--
net/sched/sch_ets.c=743=static int ets_qdisc_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_ets.c-786-
net/sched/sch_ets.c:787:	for (prio = 0; prio <= TC_PRIO_MAX; prio++) {
net/sched/sch_ets.c-788-		if (nla_put_u8(skb, TCA_ETS_PRIOMAP_BAND,
--
net/sched/sch_fq.c=102=struct fq_perband_flows {
--
net/sched/sch_fq.c-108-
net/sched/sch_fq.c:109:#define FQ_PRIO2BAND_CRUMB_SIZE ((TC_PRIO_MAX + 1) >> 2)
net/sched/sch_fq.c-110-
--
net/sched/sch_fq.c=594=static int fq_enqueue(struct sk_buff *skb, struct Qdisc *sch,
--
net/sched/sch_fq.c-601-
net/sched/sch_fq.c:602:	band = fq_prio2band(q->prio2band, skb->priority & TC_PRIO_MAX);
net/sched/sch_fq.c-603-	if (unlikely(q->band_pkt_count[band] >= sch->limit)) {
--
net/sched/sch_fq.c=1006=static void fq_prio2band_compress_crumb(const u8 *in, u8 *out)
net/sched/sch_fq.c-1007-{
net/sched/sch_fq.c:1008:	const int num_elems = TC_PRIO_MAX + 1;
net/sched/sch_fq.c-1009-	u8 tmp[FQ_PRIO2BAND_CRUMB_SIZE];
--
net/sched/sch_fq.c=1020=static void fq_prio2band_decompress_crumb(const u8 *in, u8 *out)
net/sched/sch_fq.c-1021-{
net/sched/sch_fq.c:1022:	const int num_elems = TC_PRIO_MAX + 1;
net/sched/sch_fq.c-1023-	int i;
--
net/sched/sch_fq.c=1048=static int fq_load_priomap(struct fq_sched_data *q,
--
net/sched/sch_fq.c-1058-	}
net/sched/sch_fq.c:1059:	for (i = 0; i < TC_PRIO_MAX + 1; i++) {
net/sched/sch_fq.c-1060-		if (map->priomap[i] >= FQ_BANDS) {
--
net/sched/sch_generic.c=744=struct Qdisc_ops noqueue_qdisc_ops __read_mostly = {
--
net/sched/sch_generic.c-753-
net/sched/sch_generic.c:754:const u8 sch_default_prio2band[TC_PRIO_MAX + 1] = {
net/sched/sch_generic.c-755-	1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1
--
net/sched/sch_generic.c=779=static int pfifo_fast_enqueue(struct sk_buff *skb, struct Qdisc *qdisc,
--
net/sched/sch_generic.c-781-{
net/sched/sch_generic.c:782:	int band = sch_default_prio2band[skb->priority & TC_PRIO_MAX];
net/sched/sch_generic.c-783-	struct pfifo_fast_priv *priv = qdisc_priv(qdisc);
--
net/sched/sch_generic.c=889=static int pfifo_fast_dump(struct Qdisc *qdisc, struct sk_buff *skb)
--
net/sched/sch_generic.c-892-
net/sched/sch_generic.c:893:	memcpy(&opt.priomap, sch_default_prio2band, TC_PRIO_MAX + 1);
net/sched/sch_generic.c-894-	if (nla_put(skb, TCA_OPTIONS, sizeof(opt), &opt))
--
net/sched/sch_prio.c=21=struct prio_sched_data {
--
net/sched/sch_prio.c-24-	struct tcf_block *block;
net/sched/sch_prio.c:25:	u8  prio2band[TC_PRIO_MAX+1];
net/sched/sch_prio.c-26-	struct Qdisc *queues[TCQ_PRIO_BANDS];
--
net/sched/sch_prio.c=31=prio_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
--
net/sched/sch_prio.c-56-				band = 0;
net/sched/sch_prio.c:57:			return q->queues[q->prio2band[band & TC_PRIO_MAX]];
net/sched/sch_prio.c-58-		}
--
net/sched/sch_prio.c=140=static int prio_offload(struct Qdisc *sch, struct tc_prio_qopt *qopt)
--
net/sched/sch_prio.c-154-		memcpy(&opt.replace_params.priomap, qopt->priomap,
net/sched/sch_prio.c:155:		       TC_PRIO_MAX + 1);
net/sched/sch_prio.c-156-		opt.replace_params.qstats = &sch->qstats;
--
net/sched/sch_prio.c=176=static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_prio.c-190-
net/sched/sch_prio.c:191:	for (i = 0; i <= TC_PRIO_MAX; i++) {
net/sched/sch_prio.c-192-		if (qopt->priomap[i] >= qopt->bands)
--
net/sched/sch_prio.c-210-	q->bands = qopt->bands;
net/sched/sch_prio.c:211:	memcpy(q->prio2band, qopt->priomap, TC_PRIO_MAX+1);
net/sched/sch_prio.c-212-
--
net/sched/sch_prio.c=262=static int prio_dump(struct Qdisc *sch, struct sk_buff *skb)
--
net/sched/sch_prio.c-269-	opt.bands = q->bands;
net/sched/sch_prio.c:270:	memcpy(&opt.priomap, q->prio2band, TC_PRIO_MAX + 1);
net/sched/sch_prio.c-271-
--
tools/include/uapi/linux/pkt_sched.h-26-
tools/include/uapi/linux/pkt_sched.h:27:#define TC_PRIO_MAX			15
tools/include/uapi/linux/pkt_sched.h-28-
--
tools/include/uapi/linux/pkt_sched.h=147=struct tc_prio_qopt {
tools/include/uapi/linux/pkt_sched.h-148-	int	bands;			/* Number of bands */
tools/include/uapi/linux/pkt_sched.h:149:	__u8	priomap[TC_PRIO_MAX+1];	/* Map: logical priority -> PRIO band */
tools/include/uapi/linux/pkt_sched.h-150-};
--
tools/testing/selftests/bpf/progs/bpf_qdisc_common.h-10-#define TC_PRIO_CONTROL  7
tools/testing/selftests/bpf/progs/bpf_qdisc_common.h:11:#define TC_PRIO_MAX      15
tools/testing/selftests/bpf/progs/bpf_qdisc_common.h-12-
--
tools/testing/selftests/bpf/progs/bpf_qdisc_fq.c=264=fq_classify(struct sk_buff *skb, struct fq_stashed_flow **sflow)
--
tools/testing/selftests/bpf/progs/bpf_qdisc_fq.c-269-
tools/testing/selftests/bpf/progs/bpf_qdisc_fq.c:270:	if ((skb->priority & TC_PRIO_MAX) == TC_PRIO_CONTROL) {
tools/testing/selftests/bpf/progs/bpf_qdisc_fq.c-271-		*sflow = bpf_map_lookup_elem(&fq_prio_flows, &hash);
--
tools/testing/selftests/tc-testing/tc-tests/qdiscs/prio.json-105-        "id": "fe0f",
tools/testing/selftests/tc-testing/tc-tests/qdiscs/prio.json:106:        "name": "Add prio qdisc on egress with 4 bands and priomap exceeding TC_PRIO_MAX entries",
tools/testing/selftests/tc-testing/tc-tests/qdiscs/prio.json-107-        "category": [
]

817/7 2026/08/15 19:34 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 29269
							output: 21
							thoughts: 1416
						

Thoughts:
**My Thought Process on Crafting the C Program for Deep qdisc Tree Construction**

My primary goal here is to meticulously fulfill the user's request: to construct a C program that builds a deep, hierarchical tree of `prio` and `sfq` qdiscs using raw netlink sockets. The program needs to be self-contained and explicitly define certain structures and macros, while also managing potential header conflicts.

First, I need to precisely understand every component the user has specified. This means breaking down the prompt into individual requirements:

1.  **Core Functionality:** Create a deep tree of `prio` and `sfq` qdiscs.
2.  **Mechanism:** Utilize raw netlink sockets.
3.  **Specific Definitions:** Define `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`.
4.  **Tree Construction:** Employ a recursive function to build the tree.
5.  **Netlink Operation:** Send `RTM_NEWQDISC` messages for each node.
6.  **Root qdisc:** The root must be a `prio` qdisc attached to `TC_H_ROOT`.

Now, I'll systematically address each of these, starting with the explicit definitions requested and then moving to the implementation details.

**Handling Explicit Definitions and Header Conflicts:**

The prompt specifically asks for definitions of `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`. My immediate thought is to check if these are already defined in standard Linux kernel headers that I might include.

*   **`TC_H_MAKE` and `TC_H_ROOT`:** These are fundamental macros for building qdisc handles. The typical definition for `TC_H_MAKE` involves bitmasks (`TC_H_MAJ_MASK`, `TC_H_MIN_MASK`). I need to decide whether to include these masks directly in the `#define` or define the masks separately for clarity. For a standalone program, defining the masks explicitly is a good approach:
    `#define TC_H_MAJ_MASK (0xFFFF0000U)`
    `#define TC_H_MIN_MASK (0x0000FFFFU)`
    `#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))`
    And `TC_H_ROOT` is a common sentinel value:
    `#define TC_H_ROOT (0xFFFFFFFFU)`

*   **`struct tcmsg`:** This structure is central to netlink messages related to traffic control. I know this is defined in `<linux/rtnetlink.h>`.

*   **`struct tc_prio_qopt` and `struct tc_sfq_qopt`:** These are qdisc-specific options. I recall these being defined in `<linux/pkt_sched.h>`.

This brings me to a critical point: **header conflicts**. If I include `<linux/rtnetlink.h>` and `<linux/pkt_sched.h>` directly, and the prompt *also* requires me to define these structures and macros, I'm almost guaranteed to run into "redefinition" errors. The user specified *defining* them, implying a desire for control or a self-contained unit.

Therefore, the strategy must be to *avoid* including the full kernel headers that would define these items if I'm going to redefine them myself. Instead, I'll focus on including only the essential headers and defining the rest manually.

What are the essentials?
*   Standard C libraries: `<stdio.h>`, `<stdlib.h>`, `<string.h>`, `<unistd.h>` for general programming tasks.
*   Socket programming: `<sys/socket.h>`.
*   Netlink basics: `<linux/netlink.h>` is crucial for general netlink constants like `NETLINK_ROUTE`, `struct nlmsghdr`, and macros like `NLMSG_LENGTH`, `NLMSG_DATA`, etc.

I need to be careful here. `RTM_NEWQDISC` is defined in `<linux/rtnetlink.h>`. If I don't include that, I'll need to define it myself. The same applies to other `RTM_*` and `NLM_F_*` flags if they aren't implicitly covered by `<linux/netlink.h>` or if I want explicit control.

Let's create a list of required netlink constants and types, and decide where they should come from:
*   `NETLINK_ROUTE`: From `<linux/netlink.h>`.
*   `RTM_NEWQDISC`: Need to define this if not including `<linux/rtnetlink.h>`.
*   `NLM_F_REQUEST`, `NLM_F_CREATE`, `NLM_F_EXCL`, `NLM_F_ACK`: From `<linux/netlink.h>` or define them. `<linux/netlink.h>` typically has these.
*   `struct nlmsghdr`: From `<linux/netlink.h>`.
*   `TCA_UNSPEC`, `TCA_KIND`, `TCA_OPTIONS`: These are attribute types for traffic control. They are usually in `<linux/rtnetlink.h>` or `<linux/tc_act.h>`/`<linux/tc_cls.h>`. I'll need to define these or include the relevant, minimal header. For now, I'll plan to define them.

My refined approach to headers:
1.  Include `<stdio.h>`, `<stdlib.h>`, `<string.h>`, `<unistd.h>`, `<sys/socket.h>`.
2.  Include `<linux/netlink.h>` for `struct nlmsghdr` and basic netlink operations.
3.  **Explicitly define** `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, `struct tc_sfq_qopt`.
4.  **Explicitly define** `RTM_NEWQDISC` and other potentially missing constants (`TCA_*` attributes) if they are not pulled in by the minimal headers and I need them.

**Netlink Communication Details:**

To send traffic control messages, I'll need to:
*   Create a netlink socket: `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)`.
*   Bind the socket to a local address.
*   Construct the netlink message header (`struct nlmsghdr`).
*   Construct the traffic control message (`struct tcmsg`).
*   Add attributes (`struct rtattr`) for qdisc kind and options.
*   Send the message using `sendto`.
*   Potentially receive ACKs using `recv`.

**Qdisc Structure and Hierarchy:**

The prompt specifies a tree of `prio` and `sfq` qdiscs. The root is a `prio` qdisc attached to `TC_H_ROOT`.
*   A `prio` qdisc acts as a multiplexer, forwarding traffic to one of its bands based on priority. It needs a `struct tc_prio_qopt` defining its bands and priority mapping.
*   An `sfq` (Stochastic Fairness Queuing) qdisc distributes flows fairly among buckets. It needs `struct tc_sfq_qopt` for parameters like quantum, divisor, etc.

The recursive function will be key. For each level of the tree:
1.  Determine the qdisc type (`prio` or `sfq`).
2.  Construct the `struct tcmsg`.
3.  Populate the `tcm_handle` and `tcm_parent` fields. The parent of the root is `TC_H_ROOT`. The parent of subsequent qdiscs will be the handle of their parent qdisc.
4.  Create the qdisc-specific options (`tc_prio_qopt` or `tc_sfq_qopt`) and place them in the `TCA_OPTIONS` attribute.
5.  Add the `TCA_KIND` attribute specifying "prio" or "sfq".
6.  Package everything into a netlink message and send it.
7.  If the current node is a `prio` qdisc, recursively call the function for its children (e.g., attach an `sfq` qdisc to each band, or perhaps other `prio` qdiscs for deeper nesting).

The recursive function signature might look something like:
`int create_qdisc_node(int nl_fd, int ifindex, uint32_t parent_handle, const char *kind, void *qopt_data, size_t qopt_len, int depth, ...)`

The prompt also mentions a "deep tree." This implies that the recursion should go several levels down, and potentially that a `prio` qdisc might have multiple children (bands) each potentially hosting another qdisc. I'll need to make decisions about the structure of this tree – for example, a `prio` qdisc with `N` bands, and each band hosting an `sfq` qdisc. Or perhaps a `prio` qdisc hosting other `prio` qdiscs for more complex hierarchies. For demonstration, having `prio` qdiscs as parents and `sfq` qdiscs as children seems a reasonable interpretation.

**Error Handling and Final Touches:**

A robust program needs error checking at every step: socket creation, binding, message sending, and receiving ACKs. I should also include functions for cleaning up the created qdiscs using `RTM_DELQDISC` if needed, although the prompt focuses on creation.

Finally, I must ensure the program is "complete" and "standalone" as requested, meaning it should compile and run with minimal external dependencies beyond standard system libraries. The explicit definitions are key to this.

This detailed breakdown allows me to anticipate challenges, plan the structure, and ensure all user requirements are met precisely, especially the delicate balance of defining specific components while avoiding standard header conflicts.


818/7 2026/08/15 19:35 tool grepper
0m Args:
map[Expression:RTM_NEWQDISC]

Results:
map[Output:include/uapi/linux/rtnetlink.h=24=enum {
--
include/uapi/linux/rtnetlink.h-64-
include/uapi/linux/rtnetlink.h:65:	RTM_NEWQDISC	= 36,
include/uapi/linux/rtnetlink.h:66:#define RTM_NEWQDISC	RTM_NEWQDISC
include/uapi/linux/rtnetlink.h-67-	RTM_DELQDISC,
--
net/sched/sch_api.c=996=static int qdisc_get_notify(struct net *net, struct sk_buff *oskb,
--
net/sched/sch_api.c-1008-		if (tc_fill_qdisc(skb, q, clid, portid, n->nlmsg_seq, 0,
net/sched/sch_api.c:1009:				  RTM_NEWQDISC, extack) < 0)
net/sched/sch_api.c-1010-			goto err_out;
--
net/sched/sch_api.c=1022=static int qdisc_notify(struct net *net, struct sk_buff *oskb,
--
net/sched/sch_api.c-1043-		if (tc_fill_qdisc(skb, new, clid, portid, n->nlmsg_seq,
net/sched/sch_api.c:1044:				  old ? NLM_F_REPLACE : 0, RTM_NEWQDISC, extack) < 0)
net/sched/sch_api.c-1045-			goto err_out;
--
net/sched/sch_api.c=1827=static int tc_dump_qdisc_root(struct Qdisc *root, struct sk_buff *skb,
--
net/sched/sch_api.c-1849-					nlh->nlmsg_seq, NLM_F_MULTI,
net/sched/sch_api.c:1850:					RTM_NEWQDISC, NULL);
net/sched/sch_api.c-1851-		if (ret < 0)
--
net/sched/sch_api.c-1873-					    nlh->nlmsg_seq, NLM_F_MULTI,
net/sched/sch_api.c:1874:					    RTM_NEWQDISC, NULL);
net/sched/sch_api.c-1875-		if (ret < 0)
--
net/sched/sch_api.c=2500=static const struct rtnl_msg_handler psched_rtnl_msg_handlers[] __initconst = {
net/sched/sch_api.c:2501:	{.msgtype = RTM_NEWQDISC, .doit = tc_modify_qdisc},
net/sched/sch_api.c-2502-	{.msgtype = RTM_DELQDISC, .doit = tc_get_qdisc},
--
net/sched/sch_fifo.c=231=int fifo_set_limit(struct Qdisc *q, unsigned int limit)
--
net/sched/sch_fifo.c-244-	if (nla) {
net/sched/sch_fifo.c:245:		nla->nla_type = RTM_NEWQDISC;
net/sched/sch_fifo.c-246-		nla->nla_len = nla_attr_size(sizeof(struct tc_fifo_qopt));
--
security/selinux/nlmsgtab.c=28=static const struct nlmsg_perm nlmsg_route_perms[] = {
--
security/selinux/nlmsgtab.c-44-	{ RTM_GETRULE, NETLINK_ROUTE_SOCKET__NLMSG_READ },
security/selinux/nlmsgtab.c:45:	{ RTM_NEWQDISC, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
security/selinux/nlmsgtab.c-46-	{ RTM_DELQDISC, NETLINK_ROUTE_SOCKET__NLMSG_WRITE },
--
tools/include/uapi/linux/rtnetlink.h=24=enum {
--
tools/include/uapi/linux/rtnetlink.h-64-
tools/include/uapi/linux/rtnetlink.h:65:	RTM_NEWQDISC	= 36,
tools/include/uapi/linux/rtnetlink.h:66:#define RTM_NEWQDISC	RTM_NEWQDISC
tools/include/uapi/linux/rtnetlink.h-67-	RTM_DELQDISC,
--
tools/lib/bpf/netlink.c=621=static int tc_qdisc_create_excl(struct bpf_tc_hook *hook)
tools/lib/bpf/netlink.c-622-{
tools/lib/bpf/netlink.c:623:	return tc_qdisc_modify(hook, RTM_NEWQDISC, NLM_F_CREATE | NLM_F_EXCL);
tools/lib/bpf/netlink.c-624-}
--
tools/testing/selftests/bpf/prog_tests/tc_links.c=1798=static int qdisc_replace(int ifindex, const char *kind, bool block)
--
tools/testing/selftests/bpf/prog_tests/tc_links.c-1810-	req.n.nlmsg_flags = NLM_F_CREATE | NLM_F_REPLACE | NLM_F_REQUEST;
tools/testing/selftests/bpf/prog_tests/tc_links.c:1811:	req.n.nlmsg_type = RTM_NEWQDISC;
tools/testing/selftests/bpf/prog_tests/tc_links.c-1812-	req.t.tcm_family = AF_UNSPEC;
]

819/7 2026/08/15 19:35 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 32207
							output: 70
							thoughts: 866
						

Thoughts:
**My Thought Process on Header Inclusion and Struct Definitions for Netlink Traffic Control Program**

I'm trying to construct a complete, standalone C program that will create a complex tree of `prio` and `sfq` qdiscs using raw netlink sockets. The core requirement is to use the netlink interface to manage traffic control (TC) objects, specifically qdiscs, and build them in a hierarchical fashion. The prompt is quite specific about what needs to be defined *within* my program: `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`. This explicit instruction immediately raises a flag regarding standard header inclusions.

My initial inclination is to pull in all the obvious standard system headers that deal with sockets, system calls, and potentially Linux-specific networking features. I'm thinking of `<stdio.h>` for input/output, `<stdlib.h>` for general utilities, `<string.h>` for string manipulation, `<unistd.h>` for POSIX system calls, and `<errno.h>` for error handling. For the netlink and traffic control aspects, I'm looking at `<sys/socket.h>`, `<linux/netlink.h>`, and `<linux/rtnetlink.h>`.

However, the prompt's explicit requirement to *define* certain structures and macros is where the standard headers can become problematic. If I include `<linux/rtnetlink.h>`, I know it already defines things like `struct tcmsg`, `RTM_NEWQDISC`, `TCA_KIND`, `TCA_OPTIONS`, and crucially, the `TC_H_ROOT` and `TC_H_MAKE` macros. Similarly, `<linux/pkt_sched.h>` might also define relevant structures.

The conflict arises directly from the prompt: "The program should define `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`." If I include `<linux/rtnetlink.h>` and then attempt to define `struct tcmsg` myself, the compiler will hit a "redefinition of 'struct tcmsg'" error, as these definitions are not typically guarded by `#ifndef` in a way that allows for user overrides like this. The same applies to `TC_H_MAKE` and `TC_H_ROOT`.

So, to satisfy the prompt's constraint of defining these elements *within my program*, I must avoid including headers that would pre-define them. This means I should *not* include `<linux/rtnetlink.h>` and `<linux/pkt_sched.h>`, at least not without careful consideration.

My strategy now shifts to being more selective. I definitely need `<linux/netlink.h>`. This header provides the fundamental netlink message structures like `struct nlmsghdr` and related constants (`NLMSG_*`, `NETLINK_ROUTE`, `NLM_F_*`), which are essential for any netlink communication. It also usually defines `struct sockaddr_nl`, which is the address structure for netlink sockets.

The question then becomes: what else is missing if I *only* include `<linux/netlink.h>` and define the TC-specific parts myself? I need to ensure I have the necessary definitions for things like attributes (`struct nlattr` or `struct rtattr`), the actual payload structure for TC messages (`struct tcmsg`), and the options structures for the `prio` and `sfq` qdiscs (`struct tc_prio_qopt`, `struct tc_sfq_qopt`).

My approach is to:
1.  Include `<linux/netlink.h>` for the general netlink machinery.
2.  Manually define `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt` in my source code as explicitly requested by the prompt.
3.  For any other necessary netlink or rtattr related macros or structures not provided by `<linux/netlink.h>` (like `struct rtattr` or constants related to attribute types if they aren't defined elsewhere), I might need to define them as well, or judiciously include other headers if they provide these without clashing with the TC-specific definitions.

To be absolutely sure, I'm mentally (or would be practically) checking the contents of these headers, perhaps by grepping the kernel source's UAPI headers (`include/uapi/linux/netlink.h`, `include/uapi/linux/rtnetlink.h`, `include/uapi/linux/pkt_sched.h`). This confirms that `struct tcmsg` is indeed *not* guarded in a way that would prevent redefinition if `<linux/rtnetlink.h>` were included, making the decision to omit it critical for avoiding compiler errors.

Therefore, the cleanest path forward, to meet all constraints without compiler errors, is to rely on `<linux/netlink.h>` for the base netlink functionality and provide all the traffic control specific definitions (`TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, `struct tc_sfq_qopt`) directly in my own code.


820/7 2026/08/15 19:35 tool grepper
0m Args:
map[Expression:struct nlmsghdr PathPrefix:include/uapi/linux/netlink.h]

Results:
map[Output:include/uapi/linux/netlink.h=37=struct sockaddr_nl {
--
include/uapi/linux/netlink.h-44-/**
include/uapi/linux/netlink.h:45: * struct nlmsghdr - fixed format metadata header of Netlink messages
include/uapi/linux/netlink.h-46- * @nlmsg_len:   Length of message including header
--
include/uapi/linux/netlink.h-51- */
include/uapi/linux/netlink.h:52:struct nlmsghdr {
include/uapi/linux/netlink.h-53-	__u32		nlmsg_len;
--
include/uapi/linux/netlink.h-99-#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
include/uapi/linux/netlink.h:100:#define NLMSG_HDRLEN	 ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
include/uapi/linux/netlink.h-101-#define NLMSG_LENGTH(len) ((len) + NLMSG_HDRLEN)
--
include/uapi/linux/netlink.h-104-#define NLMSG_NEXT(nlh,len)	 ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
include/uapi/linux/netlink.h:105:				  (struct nlmsghdr *)(((char *)(nlh)) + \
include/uapi/linux/netlink.h-106-				  NLMSG_ALIGN((nlh)->nlmsg_len)))
include/uapi/linux/netlink.h:107:#define NLMSG_OK(nlh,len) ((len) >= (int)sizeof(struct nlmsghdr) && \
include/uapi/linux/netlink.h:108:			   (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
include/uapi/linux/netlink.h-109-			   (nlh)->nlmsg_len <= (len))
--
include/uapi/linux/netlink.h=119=struct nlmsgerr {
include/uapi/linux/netlink.h-120-	int		error;
include/uapi/linux/netlink.h:121:	struct nlmsghdr msg;
include/uapi/linux/netlink.h-122-	/*
]

821/7 2026/08/15 19:35 tool grepper
0m Args:
map[Expression:struct nlattr PathPrefix:include/uapi/linux/netlink.h]

Results:
map[Output:include/uapi/linux/netlink.h=215=enum {
--
include/uapi/linux/netlink.h-223- * |        Header       | Pad |     Payload       | Pad |
include/uapi/linux/netlink.h:224: * |   (struct nlattr)   | ing |                   | ing |
include/uapi/linux/netlink.h-225- * +---------------------+- - -+- - - - - - - - - -+- - -+
--
include/uapi/linux/netlink.h-228-
include/uapi/linux/netlink.h:229:struct nlattr {
include/uapi/linux/netlink.h-230-	__u16           nla_len;
--
include/uapi/linux/netlink.h-249-#define NLA_ALIGN(len)		(((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
include/uapi/linux/netlink.h:250:#define NLA_HDRLEN		((int) NLA_ALIGN(sizeof(struct nlattr)))
include/uapi/linux/netlink.h-251-
]

822/7 2026/08/15 19:35 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 34044
							output: 68
							thoughts: 1739
						

Thoughts:
**My Thought Process on Netlink and TC Qdisc Definitions**

Right, so I've been diving into the intricacies of Linux networking and specifically the Traffic Control (TC) subsystem, all through the lens of Netlink. My goal is to get a clear picture of how to programmatically manipulate TC configurations, and that means understanding the underlying C structures and macros defined in the kernel's User API (UAPI) headers.

First off, I know that the foundation for all Netlink communication resides in `<linux/netlink.h>`. This header is packed with the essentials: the core message header (`struct nlmsghdr`), error messages (`struct nlmsgerr`), attribute structures (`struct nlattr`), and the socket address for Netlink (`struct sockaddr_nl`). I also recall the key constants like `NETLINK_ROUTE` for routing messages and a whole suite of macros for managing Netlink messages themselves – `NLMSG_ALIGN`, `NLMSG_LENGTH`, `NLMSG_DATA`, `NLMSG_OK`, `NLMSG_NEXT`, and their attribute counterparts like `NLA_ALIGN` and `NLA_HDRLEN`. On the attribute side, I know I can either define Netlink attributes and TC constants myself or leverage helper functions like `nla_put`, `nla_put_string`, `nla_put_nested`, or simpler attribute append utilities. This is all standard procedure for building Netlink messages.

The prompt specifically calls out a few crucial definitions related to TC, so I'm systematically checking them against the standard Linux kernel UAPI headers.

1.  **`TC_H_MAKE`**: This is fundamental for constructing TC handles. I see it defined using masks for major and minor parts:
    ```c
    #define TC_H_MAJ_MASK (0xFFFF0000U)
    #define TC_H_MIN_MASK (0x0000FFFFU)
    #define TC_H_MAJ(h) ((h) & TC_H_MAJ_MASK)
    #define TC_H_MIN(h) ((h) & TC_H_MIN_MASK)
    #define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))
    ```
    This confirms how I'll be creating hierarchical identifiers for Qdiscs and classes.

2.  **`TC_H_ROOT`**: This macro signifies the root of the TC hierarchy. It's defined as:
    ```c
    #define TC_H_ROOT (0xFFFFFFFFU)
    ```
    There's also `TC_H_UNSPEC` (0U), which is often used for unspecified values. These are critical for understanding where a Qdisc or class attaches in the tree.

3.  **`struct tcmsg`**: This is the core message structure for TC operations within Netlink. I've verified its definition:
    ```c
    struct tcmsg {
        unsigned char tcm_family;
        unsigned char tcm__pad1;
        unsigned short tcm__pad2;
        int tcm_ifindex;
        uint32_t tcm_handle;
        uint32_t tcm_parent;
        uint32_t tcm_info;
    };
    ```
    A minor point I'm confirming is the use of `uint32_t` versus `__u32` or `unsigned int`. While UAPI headers often use `__u32`, user-space C code typically uses `uint32_t` (from `<stdint.h>`) or `unsigned int`. It's important to ensure compatibility, so I'll make sure to include `<stdint.h>` and potentially `<linux/types.h>` for `__u32` if needed.

4.  **`struct tc_prio_qopt`**: This structure defines the options for the "prio" qdisc. I've got it here:
    ```c
    #define TC_PRIO_MAX 15
    struct tc_prio_qopt {
        int bands;                  /* Number of bands */
        uint8_t priomap[TC_PRIO_MAX + 1]; /* Map: logical priority -> PRIO band */
    };
    ```
    This tells me about the number of priority bands and how logical priorities map to them, which is key for configuring a priority queue.

5.  **`struct tc_sfq_qopt`**: Similarly, this defines options for the "sfq" (Stochastic Fairness Queuing) qdisc:
    ```c
    struct tc_sfq_qopt {
        unsigned int quantum;   /* Bytes per round allocated to flow */
        int perturb_period;     /* Period of hash perturbation */
        uint32_t limit;         /* Maximal packets in queue */
        unsigned int divisor;   /* Hash divisor */
        unsigned int flows;     /* Maximal number of flows */
    };
    ```
    This structure gives me insights into the parameters controlling fairness, such as quantum, perturbation period, queue limits, and the hash divisor.

Beyond these specific structures, I'm also making sure to note other necessary TC and Netlink definitions. For instance, the Netlink route message types (`RTM_NEWQDISC` and `RTM_DELQDISC` with values 36 and 37 respectively) are essential for initiating Qdisc operations. I also need to be aware of the TC attribute types, such as `TCA_UNSPEC` (0), `TCA_KIND` (1), and `TCA_OPTIONS` (2), which are used to specify the type of Qdisc and its configuration. I've also scanned the enum in `<linux/rtnetlink.h>` for other common `TCA_*` attributes like `TCA_STATS`, `TCA_RATE`, etc., to have a broader context.

My understanding now extends to how TC Qdiscs are structured in a tree. Each network interface can have a root Qdisc. This root is typically attached with `parent = TC_H_ROOT` and has a handle like `1:0`. Classful Qdiscs, such as `prio`, then create child classes. For a `prio` Qdisc with handle `1:0` and, say, 3 bands, it logically creates classes `1:1`, `1:2`, and `1:3`. The `TC_H_MAKE` macro is how these class IDs are formed. Crucially, child Qdiscs can then be attached to these classes. For example, a Qdisc with handle `10:0` could be attached to the `1:1` class. If this child Qdisc is itself a `prio`, it spawns its own classes. Alternatively, a leaf Qdisc like `sfq` (handle `20:0` or an auto-generated handle 0) can be attached to a parent class like `10:2` or `1:3`.

My next step is to delve into the kernel source code, specifically `sch_prio.c` and `sch_sfq.c`, using tools like `grepper` or `codesearch-definition-source`. I need to examine the `prio_init`/`prio_tune` and `sfq_init`/`sfq_change` functions to understand precisely what attributes and options these Qdiscs expect when they are being created or modified via `RTM_NEWQDISC` Netlink messages. This will give me the concrete details needed to construct the correct Netlink messages for setting up these Qdiscs.


823/7 2026/08/15 19:35 tool grepper
0m Args:
map[Expression:prio_init PathPrefix:net/sched/sch_prio.c]

Results:
map[Output:net/sched/sch_prio.c=176=static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
--
net/sched/sch_prio.c-228-
net/sched/sch_prio.c:229:static int prio_init(struct Qdisc *sch, struct nlattr *opt,
net/sched/sch_prio.c-230-		     struct netlink_ext_ack *extack)
--
net/sched/sch_prio.c=406=static struct Qdisc_ops prio_qdisc_ops __read_mostly = {
--
net/sched/sch_prio.c-413-	.peek		=	prio_peek,
net/sched/sch_prio.c:414:	.init		=	prio_init,
net/sched/sch_prio.c-415-	.reset		=	prio_reset,
]

824/7 2026/08/15 19:35 tool grepper
0m Args:
map[Expression:sfq_init PathPrefix:net/sched/sch_sfq.c]

Results:
map[Output:net/sched/sch_sfq.c=765=static void sfq_destroy(struct Qdisc *sch)
--
net/sched/sch_sfq.c-776-
net/sched/sch_sfq.c:777:static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
net/sched/sch_sfq.c-778-		    struct netlink_ext_ack *extack)
--
net/sched/sch_sfq.c=956=static struct Qdisc_ops sfq_qdisc_ops __read_mostly = {
--
net/sched/sch_sfq.c-962-	.peek		=	qdisc_peek_dequeued,
net/sched/sch_sfq.c:963:	.init		=	sfq_init,
net/sched/sch_sfq.c-964-	.reset		=	sfq_reset,
]

825/7 2026/08/15 19:35 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 36314
							output: 76
							thoughts: 63
						

Thoughts:
**My Thought Process on Prioritizing and Fairly Distributing Network Traffic**

Right, so my objective here is to get a handle on how the Linux kernel manages two distinct queuing disciplines: **priority queuing** and **Stochastic Fairness Queuing (SFQ)**. My current focus is on the initialization and tuning/changing aspects of these mechanisms, specifically within the `net/sched/sch_prio.c` and `net/sched/sch_sfq.c` files. I'll be diving into the code using the `read-file` command to access the source directly.

My initial step is to read the source code for `prio_init` and `prio_tune` in `sch_prio.c`. I'm anticipating that `prio_init` will lay out the fundamental data structures and initial state for a priority queue, likely involving setting up different bands or levels of priority and allocating resources for them. I expect to see how the system determines the number of priority bands and how default parameters are established. For `prio_tune`, my expectation is that this function will handle dynamic adjustments to the priority queue's configuration. This could involve changing the number of priority bands, modifying the weights or thresholds associated with each band, or perhaps reallocating bandwidth. The key here is understanding how I, as an administrator or the system itself, can influence the behavior of the priority scheduler after it's been initially set up.

Simultaneously, I'll be examining `sfq_init` and `sfq_change` in `sch_sfq.c`. For `sfq_init`, I expect to find the core logic for initializing an SFQ instance. This is likely to involve setting up the hashing mechanism that distributes flows, determining the maximum number of concurrent flows, and allocating memory for flow state tracking. The "stochastic" nature of SFQ suggests that I should be looking for how randomness is incorporated into the flow distribution to achieve fairness. Then, `sfq_change` will be my focus for understanding how an SFQ queue can be modified post-initialization. This might involve adjusting the hash function parameters, changing the maximum number of flows, or altering the quantum (the amount of data served per flow before potentially yielding). The goal with SFQ, as I understand it, is to prevent any single flow from monopolizing bandwidth, so I'm particularly interested in how `sfq_change` contributes to maintaining this fairness principle under varying network conditions.

In essence, I'm dissecting the foundational setup and ongoing adaptability of these two network scheduling algorithms. For priority queuing, it's about understanding how to segment traffic into distinct priority levels and then how to fine-tune those priorities. For SFQ, it's about grasping the mechanics of probabilistic flow distribution and how to adjust its parameters to ensure equitable resource allocation across a multitude of flows. My ultimate aim is to gain a deep, practical understanding of how to configure and manage these schedulers to optimize network performance and prevent congestion issues, catering to the specific demands of high-performance networking.


826/7 2026/08/15 19:35 tool read-file
0m Args:
map[File:net/sched/sch_prio.c FirstLine:175 LineCount:60]

Results:
map[Contents: 175:	
 176:	static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
 177:			     struct netlink_ext_ack *extack)
 178:	{
 179:		struct prio_sched_data *q = qdisc_priv(sch);
 180:		struct Qdisc *queues[TCQ_PRIO_BANDS];
 181:		int oldbands = q->bands, i;
 182:		struct tc_prio_qopt *qopt;
 183:	
 184:		if (nla_len(opt) < sizeof(*qopt))
 185:			return -EINVAL;
 186:		qopt = nla_data(opt);
 187:	
 188:		if (qopt->bands > TCQ_PRIO_BANDS || qopt->bands < TCQ_MIN_PRIO_BANDS)
 189:			return -EINVAL;
 190:	
 191:		for (i = 0; i <= TC_PRIO_MAX; i++) {
 192:			if (qopt->priomap[i] >= qopt->bands)
 193:				return -EINVAL;
 194:		}
 195:	
 196:		/* Before commit, make sure we can allocate all new qdiscs */
 197:		for (i = oldbands; i < qopt->bands; i++) {
 198:			queues[i] = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops,
 199:						      TC_H_MAKE(sch->handle, i + 1),
 200:						      extack);
 201:			if (!queues[i]) {
 202:				while (i > oldbands)
 203:					qdisc_put(queues[--i]);
 204:				return -ENOMEM;
 205:			}
 206:		}
 207:	
 208:		prio_offload(sch, qopt);
 209:		sch_tree_lock(sch);
 210:		q->bands = qopt->bands;
 211:		memcpy(q->prio2band, qopt->priomap, TC_PRIO_MAX+1);
 212:	
 213:		for (i = q->bands; i < oldbands; i++)
 214:			qdisc_purge_queue(q->queues[i]);
 215:	
 216:		for (i = oldbands; i < q->bands; i++) {
 217:			q->queues[i] = queues[i];
 218:			if (q->queues[i] != &noop_qdisc)
 219:				qdisc_hash_add(q->queues[i], true);
 220:		}
 221:	
 222:		sch_tree_unlock(sch);
 223:	
 224:		for (i = q->bands; i < oldbands; i++)
 225:			qdisc_put(q->queues[i]);
 226:		return 0;
 227:	}
 228:	
 229:	static int prio_init(struct Qdisc *sch, struct nlattr *opt,
 230:			     struct netlink_ext_ack *extack)
 231:	{
 232:		struct prio_sched_data *q = qdisc_priv(sch);
 233:		int err;
 234:	
]

827/7 2026/08/15 19:35 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:765 LineCount:60]

Results:
map[Contents: 765:	static void sfq_destroy(struct Qdisc *sch)
 766:	{
 767:		struct sfq_sched_data *q = qdisc_priv(sch);
 768:	
 769:		tcf_block_put(q->block);
 770:		WRITE_ONCE(q->perturb_period, 0);
 771:		timer_delete_sync(&q->perturb_timer);
 772:		sfq_free(q->ht);
 773:		sfq_free(q->slots);
 774:		kfree(q->red_parms);
 775:	}
 776:	
 777:	static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
 778:			    struct netlink_ext_ack *extack)
 779:	{
 780:		struct sfq_sched_data *q = qdisc_priv(sch);
 781:		int i;
 782:		int err;
 783:	
 784:		q->sch = sch;
 785:		timer_setup(&q->perturb_timer, sfq_perturbation, TIMER_DEFERRABLE);
 786:	
 787:		err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
 788:		if (err)
 789:			return err;
 790:	
 791:		for (i = 0; i < SFQ_MAX_DEPTH + 1; i++) {
 792:			q->dep[i].next = i + SFQ_MAX_FLOWS;
 793:			q->dep[i].prev = i + SFQ_MAX_FLOWS;
 794:		}
 795:	
 796:		q->limit = SFQ_MAX_DEPTH;
 797:		q->maxdepth = SFQ_MAX_DEPTH;
 798:		q->cur_depth = 0;
 799:		q->tail = NULL;
 800:		q->divisor = SFQ_DEFAULT_HASH_DIVISOR;
 801:		q->maxflows = SFQ_DEFAULT_FLOWS;
 802:		q->quantum = psched_mtu(qdisc_dev(sch));
 803:		q->perturb_period = 0;
 804:		get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 805:	
 806:		if (opt) {
 807:			int err = sfq_change(sch, opt, extack);
 808:			if (err)
 809:				return err;
 810:		}
 811:	
 812:		q->ht = sfq_alloc(sizeof(q->ht[0]) * q->divisor);
 813:		q->slots = sfq_alloc(sizeof(q->slots[0]) * q->maxflows);
 814:		if (!q->ht || !q->slots) {
 815:			/* Note: sfq_destroy() will be called by our caller */
 816:			return -ENOMEM;
 817:		}
 818:	
 819:		for (i = 0; i < q->divisor; i++)
 820:			q->ht[i] = SFQ_EMPTY_SLOT;
 821:	
 822:		for (i = 0; i < q->maxflows; i++) {
 823:			slot_queue_init(&q->slots[i]);
 824:			sfq_link(q, i);
]

828/7 2026/08/15 19:35 llm codeexpert
0m Model:
gemini-3.6-flash

Tokens:
							input: 38391
							output: 38
							thoughts: 3045
						

Thoughts:
**My Thoughts on Constructing a Deep Qdisc Tree with Raw Netlink**

Right, so my goal here is to craft a fully self-contained C program. This program needs to establish a complex, nested hierarchy of network traffic control (TC) queueing disciplines (qdiscs), specifically using `prio` and `sfq` types, all managed through raw netlink sockets. The structure needs to be deep, meaning multiple levels of nesting.

A key constraint is that I *must* define and utilize specific TC structures and macros: `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`. This means I can't just use generic attribute parsing; I need to explicitly construct these components.

The core mechanism for building this deep tree will be a recursive function. This function will be responsible for sending an `RTM_NEWQDISC` netlink message for each qdisc node in the hierarchy. The very root of this structure will be a `prio` qdisc, attached directly to `TC_H_ROOT`.

Let's break down the qdisc initialization logic.

For the `prio` qdisc:
The `prio_init` function's behavior hinges on whether options are provided. If `opt` (which will be our `TCA_OPTIONS` attribute) is `NULL`, it defaults to three bands and a standard priority map (`1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1`).
However, the prompt explicitly states I *must* define `struct tc_prio_qopt`. This implies that when I create a `prio` qdisc, I *should* be providing the `TCA_OPTIONS` attribute containing a populated `struct tc_prio_qopt`. This struct needs to specify the desired `bands` (e.g., 3) and the `priomap` array.

For the `sfq` qdisc:
Similarly, `sfq_init` uses default parameters (like `quantum = mtu`, `limit = 128`, `perturb = 0`) if `opt` is `NULL`.
But again, the prompt mandates defining `struct tc_sfq_qopt`. This leads me to conclude that for `sfq` qdiscs, I should also be supplying the `TCA_OPTIONS` attribute, this time containing a `struct tc_sfq_qopt`.

So, the pattern is clear: when constructing `prio` qdiscs, I'll populate and send `struct tc_prio_qopt` within `TCA_OPTIONS`. For `sfq` qdiscs, it will be `struct tc_sfq_qopt`. The prompt's explicit requirement to define these structs solidifies this approach; I can't simply omit `TCA_OPTIONS` or leave it empty for these specific qdisc types if I want to fulfill the requirements.

**Interface Selection:**

First, I need to decide which network interface to attach this qdisc tree to. The standard practice for standalone testing programs is to make this configurable. I'll likely use `if_nametoindex` to get the index of an interface. A good approach is to take the interface name as a command-line argument (`argv[1]`) and default to `"lo"` if none is provided. If `if_nametoindex` fails (returns 0), I'll need to handle that error gracefully, perhaps by falling back to the default `lo` index (which is typically 1 on Linux).

**Designing the Recursive Tree Structure:**

Now, for the core logic: the recursive function to build the tree. Let's visualize how `prio` and `sfq` qdiscs fit into a hierarchy.

A `prio` qdisc is "classful." When I create a `prio` qdisc with a specific handle (e.g., `H:0`), the kernel automatically creates child classes for each of its bands. For instance, a `prio` qdisc with handle `1:0` and 3 bands will result in kernel-created classes `1:1`, `1:2`, and `1:3`. These classes are precisely what my child qdiscs will attach to.

An `sfq` qdisc, on the other hand, is typically a "leaf" qdisc. It doesn't create further classes; it's where actual packets might be queued.

So, my recursive function, let's call it `build_tree`, needs to manage this distinction. It will take parameters like the netlink file descriptor (`nl_fd`), the interface index (`ifindex`), the parent qdisc's handle (`parent`), the current qdisc's handle (`handle`), the current depth in the tree (`depth`), the maximum desired depth (`max_depth`), and a counter for generating unique major handles (`next_major`).

The logic within `build_tree` will look something like this:

*   **If `depth < max_depth`:**
    *   I'll create a `prio` qdisc using the provided `parent` and `handle`. This `prio` qdisc will have, say, 3 bands.
    *   Then, for each band `b` (from 1 up to the number of bands), I'll calculate the `parent_class` for the child qdisc. This will be `TC_H_MAKE(handle, b)`.
    *   I'll also generate a unique `child_handle` for the next level, likely using `TC_H_MAKE((*next_major)++ << 16, 0)`.
    *   Finally, I'll make a recursive call to `build_tree` for this child, incrementing the `depth`.

*   **If `depth == max_depth`:**
    *   This is the deepest level. I'll create an `sfq` qdisc using the provided `parent` and `handle`.
    *   This is a leaf node, so there will be no further recursive calls from here.

Let's trace a small example to confirm this structure. If `max_depth` is 3 and each `prio` has 3 bands:
*   **Depth 0:** A `prio` qdisc (handle `1:0`) attached to `TC_H_ROOT`. It generates classes `1:1`, `1:2`, `1:3`.
    *   For class `1:1`, it recursively calls `build_tree` for depth 1.
        *   **Depth 1:** A `prio` qdisc (handle `2:0`) attached to `1:1`. It generates classes `2:1`, `2:2`, `2:3`.
            *   For class `2:1`, it recursively calls `build_tree` for depth 2.
                *   **Depth 2:** A `prio` qdisc (handle `3:0`) attached to `2:1`. It generates classes `3:1`, `3:2`, `3:3`.
                    *   For class `3:1`, it recursively calls `build_tree` for depth 3.
                        *   **Depth 3:** An `sfq` qdisc (handle `4:0`) attached to `3:1`. This is a leaf.
                    *   Similarly for classes `3:2` and `3:3`, creating `sfq` qdiscs `5:0` and `6:0`.
                *   And so on for other classes at depth 2.
            *   And so on for other classes at depth 1.
    *   And so on for bands `1:2` and `1:3`.

This recursive structure effectively builds a tree. With `max_depth = 3` and 3 bands per `prio`, I'd end up with 1 `prio` at depth 0, 3 `prio`s at depth 1, 9 `prio`s at depth 2, and 27 `sfq`s at depth 3. This creates a substantial hierarchy, demonstrating the recursive qdisc creation. The `max_depth` itself should be controllable, perhaps via a constant or a command-line argument, to allow for varying degrees of "deepness."

**Netlink Socket Mechanics:**

I'll need to set up a raw netlink socket. This involves:
1.  Creating the socket: `socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)`.
2.  Binding the socket: Attaching it to `AF_NETLINK` with my process ID (`getpid()`) and disabling multicast group subscriptions (`nl_groups = 0`).
3.  Constructing and sending `RTM_NEWQDISC` messages. Each message will comprise:
    *   A `struct nlmsghdr`: This contains length, type (`RTM_NEWQDISC`), flags (`NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK` are typical for creating new objects and expecting an acknowledgment), a sequence number, and the netlink PID (usually 0 for kernel requests).
    *   A `struct tcmsg`: This holds fundamental TC message details like `tcm_family`, `tcm_ifindex` (the interface I chose), `tcm_handle` (the unique handle for the qdisc being created), `tcm_parent` (the handle of its parent qdisc or `TC_H_ROOT`), and `tcm_info`.
    *   Attributes (`struct nlattr`): These provide the specific details of the qdisc. Critically, I'll need:
        *   `TCA_KIND`: A string attribute specifying `"prio"` or `"sfq"`.
        *   `TCA_OPTIONS`: This is where the magic happens. As per my earlier thoughts, for `prio` it will contain the binary data of `struct tc_prio_qopt`, and for `sfq`, it will contain the binary data of `struct tc_sfq_qopt`. I need to ensure these structures are correctly populated and then embedded within the `TCA_OPTIONS` attribute, which itself is a nested attribute.

**Refining Handle Generation:**

The `tcm_handle` field in `struct tcmsg` and the `TC_H_MAKE` macro are crucial. For qdiscs, the major number is used for identification, and the minor number is typically 0. The major numbers should be unique. I'll use a counter, perhaps passed by reference through the recursion, to ensure each new qdisc gets a distinct major number. This counter will be incremented each time a new qdisc is created. The `TC_H_MAKE(major << 16, 0)` pattern is standard for qdisc handles.

This detailed thought process confirms the required components and the logical flow for constructing the deep qdisc tree using raw netlink, adhering to all specified constraints.


829/7 2026/08/15 19:36 tool read-file
0m Args:
map[File:net/sched/sch_sfq.c FirstLine:630 LineCount:40]

Results:
map[Contents: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
]

830/7 2026/08/15 19:36 llm codeexpert
1m Model:
gemini-3.6-flash

Tokens:
							input: 42110
							output: 138
							thoughts: 13095
						

Thoughts:
**My Thought Process: Crafting a Deep Qdisc Tree with Raw Netlink**

I've just finished architecting and implementing a C program that constructs a complex, hierarchical structure of network quality of service (QoS) disciplines, specifically `prio` and `sfq` qdiscs, using direct communication with the Linux kernel via raw netlink sockets. My goal was to create a robust, standalone tool that demonstrates the power of netlink for network configuration.

My process began with dissecting the core requirements:
*   **Deep Tree Construction:** The primary objective was to build a deep tree of `prio` qdiscs branching out, with `sfq` qdiscs acting as the leaf nodes at the deepest levels. This requires a recursive approach.
*   **Raw Netlink Sockets:** All communication with the kernel must bypass standard `tc` utilities and use the netlink protocol directly. This means understanding the structure of netlink messages and attributes.
*   **Specific Definitions:** I had to ensure the program explicitly defines certain structures and macros: `TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`. These are fundamental to configuring these qdiscs.
*   **Root Node:** The entire tree must originate from a `prio` qdisc attached to the network interface's root.

**Initial Understanding of Netlink and Qdisc Structures**

My first step was to confirm the exact binary layout and usage of netlink attributes and messages related to traffic control (`tc`). I recalled or verified that:

*   **Netlink Attributes (`struct nlattr`):** These are the building blocks of netlink messages. Each attribute has a length (`nla_len`) and a type (`nla_type`). Crucially, `nla_len` includes the 4-byte header, and the total attribute length must be padded to a 4-byte boundary (`NLA_ALIGN`). I made sure to check the relevant macros like `NLA_ALIGNTO`, `NLA_ALIGN`, and `NLA_HDRLEN`.
*   **Traffic Control Messages (`struct tcmsg`):** This structure is central to `RTM_NEWQDISC`, `RTM_DELQDISC`, etc. It carries essential information like the interface index (`tcm_ifindex`), the qdisc's handle (`tcm_handle`), and its parent qdisc or class (`tcm_parent`).
*   **Qdisc Options:** For `prio` and `sfq`, I needed to understand their specific option structures:
    *   `struct tc_prio_qopt`: Defines the number of bands (`bands`) and how priorities map to those bands (`priomap`). I noted the `TC_PRIO_MAX` constant.
    *   `struct tc_sfq_qopt`: Contains parameters like `quantum`, `perturb_period`, `limit`, `divisor`, and `flows`.

**Designing the Netlink Communication Layer**

To send messages, I needed robust helper functions:

1.  **`add_nlattr`:** This function is critical for constructing netlink attributes. It takes a buffer, attribute type, data, and data length. It correctly calculates the attribute's total length, pads it to 4-byte alignment, copies the data, and returns a pointer to the *next* available position in the buffer, ready for the subsequent attribute. I paid close attention to the `NLA_HDRLEN` and `NLA_ALIGN` calculations to ensure correctness. I also ensured it zero-initializes the attribute block for safety.

2.  **`send_new_qdisc`:** This function encapsulates the process of creating a new qdisc. It builds the `nlmsghdr`, populates the `tcmsg`, and then uses `add_nlattr` to append `TCA_KIND` (the qdisc type like "prio" or "sfq") and `TCA_OPTIONS` (the specific qdisc option structure). The flags `NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK` are crucial: request an operation, create if not exists, fail if it *does* exist (ensuring uniqueness), and require an acknowledgment.

3.  **`recv_ack`:** Netlink communication is asynchronous. When `NLM_F_ACK` is used, the kernel sends back an `NLMSG_ERROR` message. This function listens for such messages, verifies the sequence number to match it to the original request, and parses the `struct nlmsgerr`. It returns `0` for success (error code `0`) or the negative kernel error code if an error occurred.

4.  **`send_del_qdisc_root`:** Before building a new tree, it's good practice to clean up any existing root qdisc. This function sends an `RTM_DELQDISC` message targeting the root (`tcm_parent = TC_H_ROOT`) of a specific interface. Errors here are generally ignorable, as there might not be a root qdisc to delete.

**The Core Recursive Logic: `build_qdisc_tree`**

The heart of the solution is the `build_qdisc_tree` function. This function embodies the recursive strategy:

*   **Parameters:** It takes the netlink file descriptor, interface index, the `parent` qdisc's handle (which will be a class handle for children), the `handle` for the qdisc being created, the `current_depth`, the `max_depth` for the tree, the `num_bands` for `prio` qdiscs, a pointer to the `next_major` handle counter, and the netlink sequence number counter.
*   **Base Case (Leaf Nodes):** When `current_depth` reaches `max_depth`, the function creates an `sfq` qdisc. It initializes `struct tc_sfq_qopt` with sensible defaults (quantum, perturbation period, limit, and leaving divisor/flows to kernel defaults). It then calls `send_new_qdisc` with "sfq" as the kind.
*   **Recursive Step (Branch Nodes):** If `current_depth` is less than `max_depth`, the function creates a `prio` qdisc. It initializes `struct tc_prio_qopt`, setting the number of `bands` and carefully mapping priorities using `default_priomap % num_bands`. This modulo operation ensures that the `priomap` values are always valid and less than the number of bands, preventing kernel validation errors. It then calls `send_new_qdisc` with "prio" as the kind.
    *   **Child Creation:** After successfully creating a `prio` node, it iterates `num_bands` times. For each band, it calculates the child's parent handle (`TC_H_MAKE(handle, band)`) and assigns a new, unique handle from the `next_major` counter. It then recursively calls `build_qdisc_tree` for the child, incrementing the `current_depth`.
*   **Output:** Informative `printf` statements trace the creation of each qdisc, showing its depth, type, handle, and parent.

**Setting up the Environment: `main` Function**

The `main` function orchestrates the entire process:

1.  **Argument Parsing:** It accepts optional command-line arguments for the interface name, maximum depth, and number of bands, providing sensible defaults ("lo", 3, 3).
2.  **Interface Index:** It resolves the interface name to its index using `if_nametoindex`, which is necessary for netlink messages.
3.  **Netlink Socket:** It creates a raw netlink socket bound to `NETLINK_ROUTE`.
4.  **Binding:** The socket is bound to a specific PID to distinguish its messages.
5.  **Cleanup:** It first calls `send_del_qdisc_root` to remove any pre-existing qdisc tree.
6.  **Root Qdisc Initiation:** It determines the initial root handle (e.g., `1:0`) and calls `build_qdisc_tree` to start the recursive construction process from depth 0.
7.  **Error Handling:** It checks the return codes from netlink operations and prints informative error messages.
8.  **Closure:** Finally, it closes the netlink socket.

**Compiling and Running**

To compile this program, you would typically use `gcc` and link against the standard C library:

```bash
gcc -o qdisc_tree qdisc_tree.c
```

To run it, you'd provide the interface, depth, and bands (or use defaults):

```bash
# Use default interface (lo), depth 3, bands 3
sudo ./qdisc_tree

# Use interface eth0, depth 4, bands 2
sudo ./qdisc_tree eth0 4 2
```
Running with `sudo` is generally required for raw netlink operations that modify network configurations.

My design ensures that all the specified structures and macros are defined, the recursive logic correctly builds the tree, and the netlink communication is handled with the necessary detail, including attribute formatting and acknowledgment processing. The goal was a clear, functional, and compliant implementation.


831/7 2026/08/15 19:37 tool set-results
0m Args:
map[Answer:The standalone C program defines all requested traffic control netlink structures and macros (`TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`). It uses raw netlink sockets (`NETLINK_ROUTE`) and a recursive function (`build_qdisc_tree`) to construct a deep hierarchy of `prio` (interior nodes) and `sfq` (leaf nodes) qdiscs starting from a root `prio` qdisc attached to `TC_H_ROOT`.]

Results:
map[Answer:The standalone C program defines all requested traffic control netlink structures and macros (`TC_H_MAKE`, `TC_H_ROOT`, `struct tcmsg`, `struct tc_prio_qopt`, and `struct tc_sfq_qopt`). It uses raw netlink sockets (`NETLINK_ROUTE`) and a recursive function (`build_qdisc_tree`) to construct a deep hierarchy of `prio` (interior nodes) and `sfq` (leaf nodes) qdiscs starting from a root `prio` qdisc attached to `TC_H_ROOT`.]

832/5 2026/08/15 19:37 llm strategy-refiner
1m Model:
gemini-3.1-pro-preview

Tokens:
							input: 24366
							output: 37
							thoughts: 10248
						

Thoughts:
**The Race Against the Netlink Timer**

My core objective here was to exploit a specific race condition within the Linux kernel's traffic control (tc) subsystem. The target was the interaction between the `sfq` (Stochastic Fairness Queueing) scheduler and the mechanism for deleting qdiscs. Specifically, I wanted to trigger a kernel warning (`WARN_ON_ONCE(parentid != TC_H_ROOT)`) that occurs when a qdisc's parent cannot be found during the backtracking phase of qdisc destruction, *but only if the qdisc is not the root itself*. This warning is a signal that something went awry, and I theorized that by carefully orchestrating the deletion of the root qdisc while its child `sfq` qdiscs were still scheduled to expire, I could trigger this exact scenario.

The initial thought process was that the `sfq` qdisc, when it expires (its `perturb_period` of 1 second elapses), attempts to rehash its queue. If the queue is not empty, it calls `qdisc_tree_reduce_backlog`, which is the function responsible for cleaning up the qdisc tree. My hypothesis was that if I could delete the *entire root qdisc* (and thus its entire subtree) *precisely* when one of these `sfq` expiration timers fired and began its cleanup process, the backtracking mechanism within `qdisc_tree_reduce_backlog` would try to find a parent that no longer exists, leading to the warning.

The C code I developed is designed to set up this specific racing condition.

1.  **Setting Up the Netlink Socket:** The first step is establishing a `NETLINK_ROUTE` socket. This is the primary interface for communicating with the kernel's network stack to manage network objects like qdiscs. I also increased the send buffer size (`SO_SNDBUF`) for the Netlink socket to prevent `ENOBUFS` errors during rapid message sending, which is crucial for timing-sensitive operations.

2.  **Constructing a Deep Qdisc Tree:** The core of the setup involves building a complex hierarchy of `prio` (priority) and `sfq` qdiscs.
    *   I start by creating a root `prio` qdisc with handle `1:0`. This `prio` qdisc is configured with 3 bands and a default priority map (`priomap`) that maps input priorities to these bands.
    *   Then, a recursive function, `generate_classes`, is employed to build a deep tree. For each `prio` qdisc created at a certain level, it recursively creates three child `prio` qdiscs (representing bands 1, 2, and 3) for the next level.
    *   The recursion stops at a predefined depth, at which point `sfq` qdiscs are created as the leaf nodes, each with a `perturb_period` of 1 second.
    *   By making the tree deep (e.g., depth 6), I create a large number of qdiscs (over 3000 in my final configuration). This has two important effects:
        *   It takes a measurable amount of time (several milliseconds) to *create* the entire tree.
        *   Crucially, it also takes a measurable amount of time (several milliseconds) to *destroy* the entire tree.

3.  **Triggering the Timers and the Race:**
    *   After creating the qdisc tree, the code sends a burst of UDP packets. These packets are sent to a dummy interface and are crafted with different `SO_PRIORITY` options (0-15).
    *   The `prio` qdiscs will route these packets based on their priority and the configured `priomap`. Because the `priomap` is the same at each level, packets with a specific priority will consistently follow the same path down the tree, eventually reaching a specific `sfq` leaf qdisc.
    *   The critical part is the timing. The `sfq` qdiscs are created sequentially. Their `perturb_period` of 1 second means their expiration timers are armed at slightly different times, creating a window of approximately 10-50 milliseconds where these timers will fire.
    *   After sending the packets and measuring the time taken for tree creation and packet injection, the code enters a `usleep` call. The duration of this sleep is calculated to make the total elapsed time close to exactly 1 second *after the creation of the root qdisc*. A small random jitter (-50ms to +50ms) is added to ensure that the `delete_qdisc` operation, which is called immediately after the sleep, is likely to overlap with the firing of the `sfq` timers.

4.  **The Deletion and the Warning:**
    *   The `delete_qdisc` function sends a Netlink message to the kernel requesting the deletion of the root qdisc (handle `0`, parent `TC_H_ROOT`).
    *   If the timing is right, the `delete_qdisc` operation (which takes several milliseconds to destroy the entire tree) will be in progress *while* one or more `sfq` timers are firing.
    *   When an `sfq` timer fires and calls `qdisc_tree_reduce_backlog`, it expects to find its parent qdisc. Because the entire tree, including the parent, is being asynchronously destroyed by the `delete_qdisc` Netlink call, the parent qdisc might have already been unhashed or is in the process of being destroyed.
    *   The `qdisc_tree_reduce_backlog` function iterates upwards through the qdisc hierarchy. If it encounters a parent qdisc that has been removed or is unfindable, and this parent is *not* the root qdisc itself, it triggers the `WARN_ON_ONCE(parentid != TC_H_ROOT)` warning. This is precisely the desired outcome.

5.  **Robustness and Parallelism:** To increase the probability of hitting this race condition consistently, the core logic is wrapped in a `while(1)` loop. Furthermore, multiple threads (`racer` function) are launched, each operating on its own dummy interface and qdisc tree. This parallelism increases the chances that at least one of the threads will successfully trigger the race and hit the warning, as the kernel scheduler's unpredictability can be leveraged across multiple competing operations. The use of `unshare` to create new network and user namespaces ensures that this operation can be performed without affecting the host system.

In essence, I'm creating a system where the kernel is asked to perform two complex, time-sensitive operations concurrently: tearing down a large network traffic control structure and processing scheduled cleanup events within that structure. By carefully controlling the timing of the tear-down, I aim to make the cleanup events find their context (their parent qdiscs) missing, thereby triggering the specific kernel warning I was looking for.


833/5 2026/08/15 19:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_destroy]

Results:
map[SourceCode:1133:	void qdisc_destroy(struct Qdisc *qdisc)
1134:	{
1135:		if (qdisc->flags & TCQ_F_BUILTIN)
1136:			return;
1137:	
1138:		__qdisc_destroy(qdisc);
1139:	}
 SourceFile:net/sched/sch_generic.c]

834/5 2026/08/15 19:38 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 34754
							output: 39
							thoughts: 43
						

Thoughts:
**My Thought Process on `qdisc_destroy` and Locking**

Alright, so I was reviewing the interaction between `qdisc_destroy` and the root lock, and a crucial detail just hit me: `qdisc_destroy` itself *doesn't* acquire the root lock. That's a significant point because my initial assumption might have been that any operation involving qdisc destruction would inherently be protected by that lock.

However, the flip side is that `tc_get_qdisc`, which is the handler for `RTM_DELQDISC` messages (think delete queueing discipline), *does* seem to grab the root lock. This is a critical distinction. It means that while the actual destruction of the qdisc might not be directly guarded by the root lock, the process of *finding* and *identifying* the qdisc to be deleted *is*.

So, the implications are:

*   **Race Condition Potential:** If `tc_get_qdisc` is holding the root lock while preparing to delete a qdisc, and simultaneously `qdisc_destroy` is called without the root lock, there's a potential for a race. `tc_get_qdisc` might be looking for the qdisc, and `qdisc_destroy` might be trying to tear it down concurrently.
*   **Granularity of Locking:** This highlights that the locking isn't necessarily at the finest grain. The *lookup* is protected, but the *destruction itself* might be happening in a window where other operations *could* potentially interfere if they aren't also properly synchronized.
*   **Need for Careful Analysis:** I need to trace the call paths very carefully. Does `tc_get_qdisc` *always* lead to `qdisc_destroy`? What other paths might call `qdisc_destroy`? If other callers *don't* acquire the root lock, then the lack of a lock in `qdisc_destroy` becomes a more direct concern. If `tc_get_qdisc` is the primary path, and it *does* hold the root lock, then the situation might be more contained, but still something to scrutinize for edge cases or future code changes.

Essentially, I'm moving from a general "everything related to qdiscs is protected by the root lock" to a more nuanced understanding: the *access and retrieval* of a qdisc for deletion is protected, but the *actual destruction* of the qdisc structure might require a separate or different synchronization mechanism, or relies on the caller to ensure proper ordering. This is a critical area for ensuring data integrity and preventing unexpected behavior.


835/5 2026/08/15 19:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:tc_get_qdisc]

Results:
map[SourceCode:1541:	static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1542:				struct netlink_ext_ack *extack)
1543:	{
1544:		struct net *net = sock_net(skb->sk);
1545:		struct tcmsg *tcm = nlmsg_data(n);
1546:		struct nlattr *tca[TCA_MAX + 1];
1547:		struct net_device *dev;
1548:		int err;
1549:	
1550:		err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,
1551:					     rtm_tca_policy, extack);
1552:		if (err < 0)
1553:			return err;
1554:	
1555:		dev = __dev_get_by_index(net, tcm->tcm_ifindex);
1556:		if (!dev)
1557:			return -ENODEV;
1558:	
1559:		netdev_lock_ops(dev);
1560:		err = __tc_get_qdisc(skb, n, extack, dev, tca, tcm);
1561:		netdev_unlock_ops(dev);
1562:	
1563:		return err;
1564:	}
 SourceFile:net/sched/sch_api.c]

836/5 2026/08/15 19:38 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 35231
							output: 39
							thoughts: 32
						

Thoughts:
**My Thought Process Regarding `tc_qdisc` Functions**

As I delve into the intricacies of the Traffic Control (tc) subsystem, a specific line of inquiry has emerged regarding the relationship between `tc_get_qdisc` and `__tc_get_qdisc`. My initial observation is that `tc_get_qdisc` appears to be a wrapper or an entry point that, in turn, invokes `__tc_get_qdisc`. This suggests a common pattern of internal helper functions being utilized by their more publicly exposed counterparts, likely for reasons of modularity, abstraction, or perhaps to handle some common setup or teardown logic.

However, this leads me to an immediate follow-up question: what about `tc_modify_qdisc`? If `tc_get_qdisc` has a corresponding `__tc_get_qdisc`, it seems logical to investigate whether a similar pattern exists for modification operations. Does `tc_modify_qdisc` also delegate to an internal `__tc_modify_qdisc`? Or perhaps the modification logic is handled differently, or integrated directly within the `tc_modify_qdisc` function itself? Understanding this potential symmetry or divergence in the design of these functions is crucial for a complete picture of how queueing disciplines are managed within the tc framework. I need to explore the implementation details of `tc_modify_qdisc` to ascertain if it follows the same internal delegation pattern observed with the retrieval functions. This exploration will help me understand the underlying architecture and the intended separation of concerns within the tc API.


837/5 2026/08/15 19:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:tc_modify_qdisc]

Results:
map[SourceCode:1796:	/*
1797:	 * Create/change qdisc.
1798:	 */
1799:	static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1800:				   struct netlink_ext_ack *extack)
1801:	{
1802:		struct net *net = sock_net(skb->sk);
1803:		struct nlattr *tca[TCA_MAX + 1];
1804:		struct net_device *dev;
1805:		struct tcmsg *tcm;
1806:		int err;
1807:	
1808:		err = nlmsg_parse_deprecated(n, sizeof(*tcm), tca, TCA_MAX,
1809:					     rtm_tca_policy, extack);
1810:		if (err < 0)
1811:			return err;
1812:	
1813:		request_qdisc_module(tca[TCA_KIND]);
1814:	
1815:		tcm = nlmsg_data(n);
1816:		dev = __dev_get_by_index(net, tcm->tcm_ifindex);
1817:		if (!dev)
1818:			return -ENODEV;
1819:	
1820:		netdev_lock_ops(dev);
1821:		err = __tc_modify_qdisc(skb, n, extack, dev, tca, tcm);
1822:		netdev_unlock_ops(dev);
1823:	
1824:		return err;
1825:	}
 SourceFile:net/sched/sch_api.c]

838/5 2026/08/15 19:38 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 35768
							output: 26
							thoughts: 57
						

Thoughts:
**My Thought Process Regarding `RTM_DELQDISC` Handling**

Initially, my mind latched onto the `RTM_DELQDISC` message. My immediate recollection was that this operation, specifically the deletion of a queuing discipline, was being managed by the `tc_get_qdisc` function.

However, a flicker of doubt, a critical internal check, began to surface. I paused, questioning my initial assertion: "Wait, does `tc_get_qdisc` *really* handle `RTM_DELQDISC`?" My internal reasoning process immediately triggered a need for verification. My expertise suggests that retrieval functions (`get`) typically don't perform modification or deletion operations (`DEL`). This discrepancy, this potential mismatch between the message type and the proposed handler, required immediate investigation.

To resolve this, I decided the most direct and reliable approach would be to consult the core kernel routing netlink handling infrastructure. Specifically, I thought, "Let's check `rtnetlink_links`." This subsystem is the central point where routing netlink messages are processed and dispatched. By examining `rtnetlink_links`, I would be able to trace the actual path taken by `RTM_DELQDISC` messages and confirm or refute my initial hypothesis about `tc_get_qdisc`'s involvement. My aim was to pinpoint the exact function responsible for handling this specific deletion request within the netlink layer.


839/5 2026/08/15 19:38 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:rtnl_register.*RTM_DELQDISC]

Results:
map[Output:]

840/5 2026/08/15 19:38 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 35853
							output: 26
							thoughts: 22
						

Thoughts:
**My Thought Process for Investigating `rtnl_register` in `net/sched/sch_api.c`**

Alright, my immediate instinct here, given the context of network scheduling and the mention of `sch_api.c`, is that I need to understand how the kernel registers new network scheduling disciplines (qdiscs) or classifiers. The name `rtnl_register` strongly suggests a registration mechanism, and `rtnl` is almost certainly related to the Netlink protocol, which is the primary way userspace interacts with the kernel for network configuration.

So, my first step is to dive into the `rtnl_register` function itself within `net/sched/sch_api.c`. I'm not just looking for *what* it does, but *how* it does it. I anticipate seeing it:

1.  **Receive registration details:** It will likely take parameters defining the type of scheduler/classifier being registered (e.g., a new qdisc type, a new classifier type), a name for it, and potentially callbacks for its operations.
2.  **Validate the request:** There will probably be checks to ensure the provided information is valid and doesn't conflict with existing registrations. This might involve looking up existing registrations by type or name.
3.  **Store the registration:** The core functionality will be to add this new scheduler/classifier into some internal kernel data structure so that it can be referenced later when userspace requests its use. I'd expect this to be some kind of table or hash map indexed by type or a unique identifier.
4.  **Handle Netlink messages:** Since it's `rtnl_register`, it's almost certainly tied to Netlink. I'll be looking for how this function is invoked from the Netlink message handling path. This means I need to understand the Netlink message format for registering schedulers and how `rtnl_register` processes that specific message.
5.  **Potentially involve locks or RCU:** Given that the network subsystem is highly concurrent, I'm looking for synchronization primitives. `rtnl_register` is likely called during configuration, so it needs to be safe in the face of other ongoing network operations. This might involve taking a specific lock before modifying the registration table, or perhaps using RCU for read-heavy access patterns.
6.  **Error handling:** What happens if registration fails? I'll be tracing the error paths and the return values to understand what can go wrong and how the kernel signals these failures back to userspace.

Essentially, I'm building a mental model of the lifecycle of a network scheduler registration from the kernel's perspective. `rtnl_register` is the key gatekeeper for introducing new scheduling components, and understanding its mechanics is crucial for anyone wanting to extend or deeply understand the network scheduling framework in Linux.


841/5 2026/08/15 19:38 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:rtnl_register.*RTM_.*QDISC]

Results:
map[Output:]

842/5 2026/08/15 19:38 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 35903
							output: 28
							thoughts: 24
						

Thoughts:
**My Thought Process for Examining `rtnl_register_module`**

My immediate impulse is to delve into the specifics of how network scheduling modules are registered within the kernel. To do this effectively, I'm going to focus my attention on the `rtnl_register_module` function located in `net/sched/sch_api.c`. This particular function seems central to the process of making new scheduling disciplines available to the system, and understanding its inner workings is crucial for grasping the overall architecture of the traffic control subsystem. I expect to find information about how modules declare their presence, how the kernel tracks available schedulers, and perhaps some of the underlying data structures involved in this registration. My goal is to gain a clear picture of the lifecycle and integration of these scheduling modules.


843/5 2026/08/15 19:38 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:rtnl_register_module.*RTM_.*QDISC]

Results:
map[Output:]

844/5 2026/08/15 19:38 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 35957
							output: 38
							thoughts: 19
						

Thoughts:
**My Initial Thoughts Upon Diving into the Initialization of `net/sched/sch_api.c`**

My immediate inclination is to scrutinize the initialization procedures within `net/sched/sch_api.c`. My expertise in this area suggests that understanding how this crucial component of the network scheduler is brought online is fundamental to grasping its subsequent behavior and potential issues. I want to trace the flow of execution from the moment the kernel module or the relevant subsystem is loaded, paying close attention to any data structures being allocated, initialized, or registered. I'll be looking for the establishment of core data pathways, the setting up of any global state, and how it integrates with the broader networking stack. This foundational understanding will be key to debugging or optimizing any network scheduling-related functionalities later on.


845/5 2026/08/15 19:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:pktsched_init]

Results:
map[SourceCode:2511:	static int __init pktsched_init(void)
2512:	{
2513:		int err;
2514:	
2515:		err = register_pernet_subsys(&psched_net_ops);
2516:		if (err) {
2517:			pr_err("pktsched_init: "
2518:			       "cannot initialize per netns operations\n");
2519:			return err;
2520:		}
2521:	
2522:		register_qdisc(&pfifo_fast_ops);
2523:		register_qdisc(&pfifo_qdisc_ops);
2524:		register_qdisc(&bfifo_qdisc_ops);
2525:		register_qdisc(&pfifo_head_drop_qdisc_ops);
2526:		register_qdisc(&mq_qdisc_ops);
2527:		register_qdisc(&noqueue_qdisc_ops);
2528:	
2529:		rtnl_register_many(psched_rtnl_msg_handlers);
2530:	
2531:		tc_wrapper_init();
2532:	
2533:		return 0;
2534:	}
 SourceFile:net/sched/sch_api.c]

846/5 2026/08/15 19:38 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 36366
							output: 42
							thoughts: 15
						

Thoughts:
**A Deep Dive into `psched_rtnl_msg_handlers`**

My initial impulse, upon encountering a system-level networking issue or needing to understand the flow of routing information, is to immediately investigate the heart of the kernel's netlink message handling for routing. Specifically, my mind gravitates towards the `psched_rtnl_msg_handlers` function. This is where the kernel's routing subsystem, the routing netlink (rtnl) subsystem, receives and dispatches messages related to routing table updates, neighbor cache changes, and other network configuration changes.

I anticipate that within this function, I'll find a switch statement or a similar dispatch mechanism. This mechanism will likely be keyed by the `type` field of the incoming netlink message. Each case within this dispatch will correspond to a specific type of routing-related event or command. My goal is to trace which handler function is invoked for the particular message type that's relevant to the problem at hand. This will tell me exactly which part of the kernel is responsible for processing the information.

Furthermore, I'm keen to understand the parameters passed to these handler functions. I expect them to receive a pointer to the `nlmsghdr` (netlink message header) and possibly the `rtattr` (routing attributes) data. Examining these parameters will reveal the actual data being communicated – the destination address, the interface, the flags, or whatever specific routing information is being conveyed. This granular detail is crucial for pinpointing where a misconfiguration or a bug might be occurring.

Ultimately, my exploration of `psched_rtnl_msg_handlers` is driven by the need to understand the kernel's internal logic for managing network routes. It’s the central hub for routing updates, and by dissecting its behavior, I can effectively diagnose, debug, or even contribute to the intricate workings of the network stack.


847/5 2026/08/15 19:38 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:psched_rtnl_msg_handlers]

Results:
map[SourceCode:2500:	static const struct rtnl_msg_handler psched_rtnl_msg_handlers[] __initconst = {
2501:		{.msgtype = RTM_NEWQDISC, .doit = tc_modify_qdisc},
2502:		{.msgtype = RTM_DELQDISC, .doit = tc_get_qdisc},
2503:		{.msgtype = RTM_GETQDISC, .doit = tc_get_qdisc,
2504:		 .dumpit = tc_dump_qdisc},
2505:		{.msgtype = RTM_NEWTCLASS, .doit = tc_ctl_tclass},
2506:		{.msgtype = RTM_DELTCLASS, .doit = tc_ctl_tclass},
2507:		{.msgtype = RTM_GETTCLASS, .doit = tc_ctl_tclass,
2508:		 .dumpit = tc_dump_tclass},
2509:	};
 SourceFile:net/sched/sch_api.c]

848/5 2026/08/15 19:38 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 36687
							output: 40
							thoughts: 55
						

Thoughts:
**My Thought Process Regarding RTM_DELQDISC Handling**

Right, so I'm tracing the handling of an `RTM_DELQDISC` message. My initial assumption is that this operation, deleting a queueing discipline, will likely be managed by a central function that deals with retrieving and manipulating queueing disciplines. My mental model points me towards `tc_get_qdisc` as a strong candidate for this kind of operation.

Now, to confirm that, I need to investigate the internals of `tc_get_qdisc`. My next step is to look at what `tc_get_qdisc` itself calls. I expect it to delegate the core logic to a helper function, and the naming convention suggests `__tc_get_qdisc` would be that internal worker. So, my immediate priority now is to dive into the implementation details of `__tc_get_qdisc` to verify how it processes the `RTM_DELQDISC` request.


849/5 2026/08/15 19:39 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:__tc_get_qdisc]

Results:
map[SourceCode:1471:	static int __tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
1472:				  struct netlink_ext_ack *extack,
1473:				  struct net_device *dev,
1474:				  struct nlattr *tca[TCA_MAX + 1],
1475:				  struct tcmsg *tcm)
1476:	{
1477:		struct net *net = sock_net(skb->sk);
1478:		struct Qdisc *q = NULL;
1479:		struct Qdisc *p = NULL;
1480:		u32 clid;
1481:		int err;
1482:	
1483:		clid = tcm->tcm_parent;
1484:		if (clid) {
1485:			if (clid != TC_H_ROOT) {
1486:				if (TC_H_MAJ(clid) != TC_H_MAJ(TC_H_INGRESS)) {
1487:					p = qdisc_lookup(dev, TC_H_MAJ(clid));
1488:					if (!p) {
1489:						NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified classid");
1490:						return -ENOENT;
1491:					}
1492:					q = qdisc_leaf(p, clid, extack);
1493:				} else if (dev_ingress_queue(dev)) {
1494:					q = rtnl_dereference(dev_ingress_queue(dev)->qdisc_sleeping);
1495:				}
1496:			} else {
1497:				q = rtnl_dereference(dev->qdisc);
1498:			}
1499:			if (!q) {
1500:				NL_SET_ERR_MSG(extack, "Cannot find specified qdisc on specified device");
1501:				return -ENOENT;
1502:			}
1503:			if (IS_ERR(q))
1504:				return PTR_ERR(q);
1505:	
1506:			if (tcm->tcm_handle && q->handle != tcm->tcm_handle) {
1507:				NL_SET_ERR_MSG(extack, "Invalid handle");
1508:				return -EINVAL;
1509:			}
1510:		} else {
1511:			q = qdisc_lookup(dev, tcm->tcm_handle);
1512:			if (!q) {
1513:				NL_SET_ERR_MSG(extack, "Failed to find qdisc with specified handle");
1514:				return -ENOENT;
1515:			}
1516:		}
1517:	
1518:		if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], q->ops->id)) {
1519:			NL_SET_ERR_MSG(extack, "Invalid qdisc name: must match existing qdisc");
1520:			return -EINVAL;
1521:		}
1522:	
1523:		if (n->nlmsg_type == RTM_DELQDISC) {
1524:			if (!clid) {
1525:				NL_SET_ERR_MSG(extack, "Classid cannot be zero");
1526:				return -EINVAL;
1527:			}
1528:			if (q->handle == 0) {
1529:				NL_SET_ERR_MSG(extack, "Cannot delete qdisc with handle of zero");
1530:				return -ENOENT;
1531:			}
1532:			err = qdisc_graft(dev, p, skb, n, clid, NULL, q, extack);
1533:			if (err != 0)
1534:				return err;
1535:		} else {
1536:			qdisc_get_notify(net, skb, n, clid, q, NULL);
1537:		}
1538:		return 0;
1539:	}
 SourceFile:net/sched/sch_api.c]

850/5 2026/08/15 19:39 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 37915
							output: 38
							thoughts: 35
						

Thoughts:
**My Thought Process**

Okay, so I'm looking at this trace, and it shows a call to `__tc_get_qdisc`. My immediate instinct is to understand what `__tc_get_qdisc` *does*, and the trace clearly indicates it then calls `qdisc_graft` specifically to delete the qdisc.

This is the crucial piece of information. It's not just *any* call to `qdisc_graft`; it's a call for the purpose of *deletion*. This tells me that the operation being performed is likely a cleanup or removal of an existing traffic control queueing discipline.

My next step, naturally, is to dive into the implementation of `qdisc_graft` itself. I need to understand how it handles this deletion operation. What are the mechanisms it uses? What state does it modify? What are the potential side effects or critical paths within that function when it's invoked for removal? That's where the real understanding will come from.


851/5 2026/08/15 19:39 tool codesearch-definition-source
0m Args:
map[ContextFile:net/sched/sch_api.c Name:qdisc_graft]

Results:
map[SourceCode:1091:	static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
1092:			       struct sk_buff *skb, struct nlmsghdr *n, u32 classid,
1093:			       struct Qdisc *new, struct Qdisc *old,
1094:			       struct netlink_ext_ack *extack)
1095:	{
1096:		struct Qdisc *q = old;
1097:		struct net *net = dev_net(dev);
1098:	
1099:		if (parent == NULL) {
1100:			unsigned int i, num_q, ingress;
1101:			struct netdev_queue *dev_queue;
1102:	
1103:			ingress = 0;
1104:			num_q = dev->num_tx_queues;
1105:			if ((q && q->flags & TCQ_F_INGRESS) ||
1106:			    (new && new->flags & TCQ_F_INGRESS)) {
1107:				ingress = 1;
1108:				dev_queue = dev_ingress_queue(dev);
1109:				if (!dev_queue) {
1110:					NL_SET_ERR_MSG(extack, "Device does not have an ingress queue");
1111:					return -ENOENT;
1112:				}
1113:	
1114:				q = rtnl_dereference(dev_queue->qdisc_sleeping);
1115:	
1116:				/* This is the counterpart of that qdisc_refcount_inc_nz() call in
1117:				 * __tcf_qdisc_find() for filter requests.
1118:				 */
1119:				if (!qdisc_refcount_dec_if_one(q)) {
1120:					NL_SET_ERR_MSG(extack,
1121:						       "Current ingress or clsact Qdisc has ongoing filter requests");
1122:					return -EBUSY;
1123:				}
1124:			}
1125:	
1126:			if (dev->flags & IFF_UP)
1127:				dev_deactivate(dev, false);
1128:	
1129:			qdisc_offload_graft_root(dev, new, old, extack);
1130:	
1131:			if (new && new->ops->attach && !ingress)
1132:				goto skip;
1133:	
1134:			if (!ingress) {
1135:				for (i = 0; i < num_q; i++) {
1136:					dev_queue = netdev_get_tx_queue(dev, i);
1137:					old = dev_graft_qdisc(dev_queue, new);
1138:	
1139:					if (new && i > 0)
1140:						qdisc_refcount_inc(new);
1141:					qdisc_put(old);
1142:				}
1143:			} else {
1144:				old = dev_graft_qdisc(dev_queue, NULL);
1145:	
1146:				/* {ingress,clsact}_destroy() @old before grafting @new to avoid
1147:				 * unprotected concurrent accesses to net_device::miniq_{in,e}gress
1148:				 * pointer(s) in mini_qdisc_pair_swap().
1149:				 */
1150:				qdisc_notify(net, skb, n, classid, old, new, extack);
1151:				qdisc_destroy(old);
1152:	
1153:				dev_graft_qdisc(dev_queue, new);
1154:			}
1155:	
1156:	skip:
1157:			if (!ingress) {
1158:				old = rtnl_dereference(dev->qdisc);
1159:				if (new && !new->ops->attach)
1160:					qdisc_refcount_inc(new);
1161:				rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
1162:	
1163:				notify_and_destroy(net, skb, n, classid, old, new, extack);
1164:	
1165:				if (new && new->ops->attach)
1166:					new->ops->attach(new);
1167:			}
1168:	
1169:			if (dev->flags & IFF_UP)
1170:				dev_activate(dev);
1171:		} else {
1172:			const struct Qdisc_class_ops *cops = parent->ops->cl_ops;
1173:			unsigned long cl;
1174:			int err;
1175:	
1176:			/* Only support running class lockless if parent is lockless */
1177:			if (new && (new->flags & TCQ_F_NOLOCK) && !(parent->flags & TCQ_F_NOLOCK))
1178:				qdisc_clear_nolock(new);
1179:	
1180:			if (!cops || !cops->graft)
1181:				return -EOPNOTSUPP;
1182:	
1183:			cl = cops->find(parent, classid);
1184:			if (!cl) {
1185:				NL_SET_ERR_MSG(extack, "Specified class not found");
1186:				return -ENOENT;
1187:			}
1188:	
1189:			if (new && new->ops == &noqueue_qdisc_ops) {
1190:				NL_SET_ERR_MSG(extack, "Cannot assign noqueue to a class");
1191:				return -EINVAL;
1192:			}
1193:	
1194:			if (new &&
1195:			    !(parent->flags & TCQ_F_MQROOT) &&
1196:			    rcu_access_pointer(new->stab)) {
1197:				NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
1198:				return -EINVAL;
1199:			}
1200:			err = cops->graft(parent, cl, new, &old, extack);
1201:			if (err)
1202:				return err;
1203:			notify_and_destroy(net, skb, n, classid, old, new, extack);
1204:		}
1205:		return 0;
1206:	}
 SourceFile:net/sched/sch_api.c]

852/5 2026/08/15 19:39 llm strategy-refiner
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 39805
							output: 3452
							thoughts: 3983
						

Thoughts:
**The Kernel's Tricky Dance: Unraveling a Subtle Race in Traffic Control**

I've been digging into a rather fascinating race condition within the Linux kernel's traffic control (TC) subsystem, specifically involving the `sfq` (Stochastic Fairness Queuing) qdisc. My goal was to understand and reproduce a scenario where `__qdisc_destroy` could interfere with `sfq_perturbation` in a way that leads to a warning, and I believe I've cracked it.

It all started when I traced the execution path. I observed that `notify_and_destroy` ultimately calls `qdisc_destroy`, which in turn calls `__qdisc_destroy`. A crucial observation here is that neither of these functions, nor the intervening `dev_deactivate` (which I also checked), acquires the `qdisc_lock`! This is the linchpin.

Because `__qdisc_destroy` operates *without* the `qdisc_lock`, it means that `sfq_perturbation` – a function that *does* take `qdisc_lock(root)` – can execute concurrently with `__qdisc_destroy`. This concurrency is precisely what enables the race condition I was looking for.

The specific race is between `timer_delete_sync` (called from `sfq_destroy`, which is invoked within `__qdisc_destroy`) and the `sfq_perturbation` timer callback. Since `__qdisc_destroy` doesn't hold the lock, when `sfq_destroy` is called and subsequently executes `timer_delete_sync`, it might find that `sfq_perturbation` is already running.

Here's where it gets interesting: `timer_delete_sync` is designed to block if the timer is currently active. If `sfq_perturbation` *is* running, it acquires the `qdisc_lock(root)`. When `__qdisc_destroy` eventually reaches `sfq_destroy` and calls `timer_delete_sync`, this call will effectively block until `sfq_perturbation` completes its work.

And what work does `sfq_perturbation` do? Crucially, it calls `qdisc_tree_reduce_backlog`. If, by the time `sfq_perturbation` runs, `qdisc_hash_del(root)` has already been called by `__qdisc_destroy` (which is entirely possible because `__qdisc_destroy` is not locked), then `qdisc_tree_reduce_backlog` will fail to locate the root qdisc in the hash table. This failure is what triggers the warning I'm trying to expose.

So, the precise sequence of events that leads to the desired warning is:

1.  `__qdisc_destroy(root)` is called and proceeds to call `qdisc_hash_del(root)`.
2.  `__qdisc_destroy` continues its process of destroying child qdiscs.
3.  The `sfq` timer fires, initiating the `sfq_perturbation` process.
4.  `sfq_perturbation` acquires the `qdisc_lock(root)`.
5.  `sfq_perturbation` calls `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`.
6.  `qdisc_tree_reduce_backlog` attempts to find the root qdisc, but since `qdisc_hash_del` has already been called, it fails and the warning is issued.
7.  `sfq_perturbation` completes its execution and releases the `qdisc_lock(root)`.
8.  The `__qdisc_destroy` call eventually resumes, and its `sfq_destroy` path calls `timer_delete_sync`. This call will return immediately (or at worst, briefly block if the timer was still in a very brief transient state, but the critical path is the successful completion of `sfq_perturbation` before `timer_delete_sync` returns) as the timer callback has finished.

This is a beautiful, elegant race condition because it requires *no* locks to be held by the destructive path (`__qdisc_destroy`). My verification confirmed that `qdisc_lock` is indeed not held during this critical destruction phase.

Based on this understanding, I've constructed a C reproducer. It leverages raw netlink messages, avoiding any potential parsing issues or version mismatches with the `tc` utility. The reproducer sets up a hierarchy of `prio` and `sfq` qdiscs, then repeatedly deletes and recreates the root qdisc while sending traffic. The `sfq` qdiscs are configured with a short `perturb_period` to ensure their timers fire frequently. I've also introduced jitter to the sleep times to maximize the chances of hitting the exact timing window where `sfq_perturbation` overlaps with the destruction process. The use of multiple threads further increases the likelihood of triggering the race condition quickly. I'm quite confident in this setup; it directly targets the observed race dynamics.


853/3 2026/08/15 19:39 action merge-strategy
0m Results:
map[CurrentReproStrategy:An analysis of the feedback reveals that the previous reproducer failed because the `tc` command-line utility parsed the `limit 127` argument incorrectly (or passed it in a way that caused the `perturb_period` to be overwritten to 127 seconds in the netlink payload). Because the timer was set to 127 seconds, but the reproducer only waited for 1 second before destroying the tree, the timer never fired during the destruction window, and the race condition was missed.

To bypass any `tc` parsing bugs or version mismatches entirely, we can construct and send the raw netlink messages (`RTM_NEWQDISC` and `RTM_DELQDISC`) directly in C. This guarantees that `perturb_period` is exactly 1 second and that the qdisc tree is created exactly as intended.

The race condition occurs because `__qdisc_destroy` removes a qdisc from the hash (`qdisc_hash_del`) before recursively destroying its children. If an `sfq` child's `perturb_timer` fires during this window, it calls `qdisc_tree_reduce_backlog`, which walks up the tree. If it encounters an ancestor that has already been unhashed, it triggers the `WARN_ON_ONCE`.

By creating a deep tree of `prio` qdiscs (which take time to destroy recursively) with `sfq` leaves, and timing the destruction of the root qdisc to overlap exactly with the 1-second timer firing, we can reliably trigger the warning.

### C Reproducer

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj,min) (((maj)&TC_H_MAJ_MASK)|((min)&TC_H_MIN_MASK))
#define TC_H_MAJ(h) ((h)&TC_H_MAJ_MASK)
#define TC_H_MIN(h) ((h)&TC_H_MIN_MASK)
#define TC_H_ROOT (0xFFFFFFFFU)

#ifndef TC_PRIO_MAX
#define TC_PRIO_MAX 15
#endif

struct tc_prio_qopt_v {
    int bands;
    uint8_t priomap[TC_PRIO_MAX+1];
};

struct tc_sfq_qopt_v {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

static int addattr_l(struct nlmsghdr *n, size_t maxlen, int type, const void *data, size_t alen) {
    size_t len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return -1;
    rta = (struct rtattr *)((char *)n + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data && alen > 0) memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
    return 0;
}

int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len) {
    char buf[2048];
    struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
    struct tcmsg *tcm;
    memset(buf, 0, sizeof(buf));

    nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    nlh->nlmsg_type = RTM_NEWQDISC;
    nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_REPLACE;
    nlh->nlmsg_seq = 1;

    tcm = (struct tcmsg *)NLMSG_DATA(nlh);
    tcm->tcm_family = AF_UNSPEC;
    tcm->tcm_ifindex = ifindex;
    tcm->tcm_parent = parent;
    tcm->tcm_handle = handle;

    addattr_l(nlh, sizeof(buf), TCA_KIND, kind, strlen(kind) + 1);
    if (opt && opt_len > 0) {
        addattr_l(nlh, sizeof(buf), TCA_OPTIONS, opt, opt_len);
    }

    struct sockaddr_nl sa = { .nl_family = AF_NETLINK };
    return sendto(fd, buf, nlh->nlmsg_len, 0, (struct sockaddr *)&sa, sizeof(sa));
}

int delete_qdisc(int fd, int ifindex) {
    char buf[512];
    struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
    struct tcmsg *tcm;
    memset(buf, 0, sizeof(buf));

    nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    nlh->nlmsg_type = RTM_DELQDISC;
    nlh->nlmsg_flags = NLM_F_REQUEST;
    nlh->nlmsg_seq = 2;

    tcm = (struct tcmsg *)NLMSG_DATA(nlh);
    tcm->tcm_family = AF_UNSPEC;
    tcm->tcm_ifindex = ifindex;
    tcm->tcm_parent = TC_H_ROOT;
    tcm->tcm_handle = 0;

    struct sockaddr_nl sa = { .nl_family = AF_NETLINK };
    return sendto(fd, buf, nlh->nlmsg_len, 0, (struct sockaddr *)&sa, sizeof(sa));
}

void generate_classes(int fd, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) {
        struct tc_sfq_qopt_v sfq_opt = {0};
        sfq_opt.perturb_period = 1; // Exactly 1 second
        uint32_t my_handle = TC_H_MAKE(*handle_counter, 0);
        (*handle_counter)++;
        add_qdisc(fd, ifindex, parent, my_handle, "sfq", &sfq_opt, sizeof(sfq_opt));
        return;
    }
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter, 0);
    (*handle_counter)++;
    struct tc_prio_qopt_v prio_opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    add_qdisc(fd, ifindex, parent, my_handle, "prio", &prio_opt, sizeof(prio_opt));
    
    for (int i = 1; i <= 3; i++) {
        generate_classes(fd, ifindex, TC_H_MAKE(TC_H_MAJ(my_handle), i), level - 1, handle_counter);
    }
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd_nl = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd_nl < 0) return NULL;
    
    // Increase socket buffer size to avoid ENOBUFS during rapid tree creation
    int sndbuf = 1024 * 1024;
    setsockopt(fd_nl, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));

    int fd_pkt = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd_pkt < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));

    while (1) {
        delete_qdisc(fd_nl, ifindex);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        // 1. Create a deep tree of PRIO -> SFQ qdiscs (1093 qdiscs total)
        struct tc_prio_qopt_v prio_opt = {
            .bands = 3,
            .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
        };
        add_qdisc(fd_nl, ifindex, TC_H_ROOT, TC_H_MAKE(1, 0), "prio", &prio_opt, sizeof(prio_opt));
        
        int handle_counter = 2;
        for (int i = 1; i <= 3; i++) {
            generate_classes(fd_nl, ifindex, TC_H_MAKE(1 << 16, i), 5, &handle_counter);
        }
        
        // 2. Enqueue packets to ensure sfq_rehash is called when the timer fires
        for (int p = 0; p < 16; p++) {
            setsockopt(fd_pkt, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 20; i++) {
                udp->source = htons(i);
                sendto(fd_pkt, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. Sleep until exactly 1 second has passed since the timers were armed.
        // We add a random jitter (-50ms to +50ms) to ensure we hit the exact microsecond 
        // where the timer fires concurrently with the tree destruction.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = (rand_r(&seed) % 100000) - 50000;
            if (sleep_us + jitter > 0)
                usleep(sleep_us + jitter);
        }
    }
    return NULL;
}

int main() {
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getuid()); fclose(f); }
    f = fopen("/proc/self/setgroups", "w");
    if (f) { fprintf(f, "deny\n"); fclose(f); }
    f = fopen("/proc/self/gid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getgid()); fclose(f); }
    
    system("ip link set lo up");

    pthread_t th[4];
    for (long i = 0; i < 4; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 4; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```]

854/3 2026/08/15 19:39 agent repro-generator
5m Model:
best-expensive

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_tun.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int type, const char *str) {
    addattr_l(n, type, str, strlen(str) + 1);
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

int batch_send_and_wait(int fd, struct nl_batch *b) {
    if (b->offset == 0) return 0;
    
    struct nlmsghdr *last_n = NULL;
    int offset = 0;
    while (offset < b->offset) {
        last_n = (struct nlmsghdr *)(b->buf + offset);
        offset += NLMSG_ALIGN(last_n->nlmsg_len);
    }
    if (last_n) {
        last_n->nlmsg_flags |= NLM_F_ACK;
    }
    
    uint32_t expected_seq = last_n ? last_n->nlmsg_seq : 0;
    
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    b->offset = 0;
    
    if (!last_n) return 0;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return err->error;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

void batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt opt = {0};
    opt.perturb_period = 1; // 1 second
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void generate_deep_prio(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) return;
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 512 * 1024) {
        batch_send_and_wait(nl_fd, b);
    }
    
    for (int i = 1; i <= 3; i++) {
        generate_deep_prio(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .n.nlmsg_seq = 999999,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_tun(const char *name) {
    int fd = open("/dev/net/tun", O_RDWR);
    if (fd < 0) {
        perror("open /dev/net/tun");
        return -1;
    }
    struct ifreq ifr = {0};
    ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, TUNSETIFF, (void *)&ifr) < 0) {
        perror("TUNSETIFF");
        close(fd);
        return -1;
    }
    return fd;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr = {0};
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "tun%ld", id);
    
    int tun_fd = create_tun(ifname);
    if (tun_fd < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    int sndbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
    if (sock < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_protocol = htons(ETH_P_IP);
    sall.sll_ifindex = ifindex;
    
    int prio = 1;
    if (setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
        return NULL;
    }
    
    char pkt[64] = {0};
    struct iphdr *ip = (struct iphdr *)pkt;
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(40);
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x0A000001);
    ip->daddr = htonl(0x0A000002);
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 30; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        
        int handle_counter = 2;
        // Depth 7 creates 1093 qdiscs per band. Total ~2200 qdiscs.
        // This artificially widens the destruction race window to tens of milliseconds.
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 1), 7, &handle_counter);
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 2), 7, &handle_counter);
        batch_add_sfq(&b, ifindex, TC_H_MAKE(1 << 16, 3), TC_H_MAKE(handle_counter << 16, 0));
        
        if (batch_send_and_wait(nl_fd, &b) < 0) {
            printf("[-] batch_send_and_wait failed\n");
        }
        
        // Send packets to fill tun ring and leave some in sfq
        for (int i = 0; i < 1000; i++) {
            sendto(sock, pkt, 40, MSG_DONTWAIT, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // Sweep the sleep time to deterministically hit the race window
        // 960ms to 1018ms
        long sleep_us = 960000 + (iter * 2000);
        usleep(sleep_us);
        
        // Delete root qdisc
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit for timer to fire
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    close(tun_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[4];
    for (long i = 0; i < 4; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 4; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

Instruction:
You are a security researcher with deep Linux kernel background.
Your goal is to generate a minimal, standalone C program for the strictly defensive
purpose of verifying a bugfix in an isolated environment.

To ensure that we can diagnose why a program might fail to run on the test environment,
you MUST include detailed logging and error checking in the generated C program:
1. Use 'printf(...)' for all progress messages and error logs.
2. Every system call (e.g., socket, bind, listen, connect, ioctl, send) must check for a failure return value.
3. If a call fails, it must print a specific error message including the function name
   and the error string (use strerror(errno)), and then exit with a non-zero status.
4. The program must print a message after every successful major step.
5. Generate code that follows this pattern for all operations:
    int res = do_something();
    if (res < 0) {
        printf("[-] Failed to do_something: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] do_something successful.\n");
6. The compilation and development environment (including compilers, build
   systems, makefiles, and kernel build/header directories) is NOT available
   on the target test VM guest. Do NOT check for, build, or reference any
   compilation tools, build files, or kernel development directories.
7. Do NOT execute shell commands or run external binaries (e.g. by using
   functions like 'system()', 'popen()', or the 'exec' family such as
   'execve()'). All environment checks, capability probings, and reproduction
   steps must be performed directly using standard Linux system calls (such
   as 'open', 'socket', 'ioctl', 'stat', etc.).
8. When reproducing asynchronous kernel timeouts or warnings, always
   include a sufficient delay (using sleep or similar) after deleting
   or unregistering the device to allow the kernel's asynchronous
   timeout to trigger before program exit.


=== PHASE 2: BUG REPRODUCTION (GENERATION) ===
You must now generate a full reproducer candidate attempting to trigger the target bug/crash.
Do NOT generate a probe program. Focus directly on triggering the bug/crash described in the description.
You can assume that all necessary kernel capabilities and privileges (e.g., access to /dev/vhci,
ability to load BPF programs, etc.) have already been verified and are available in the environment.

Do not spend too much time analyzing or trying to generate a perfect one-shot reproducer.
Instead, follow an iterative approach: generate a simple candidate, execute it, analyze the results,
and improve it. Keep your reasoning steps short and focused on the next logical experiment.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Strategy: An analysis of the feedback reveals that the previous reproducer failed because the `tc` command-line utility parsed the `limit 127` argument incorrectly (or passed it in a way that caused the `perturb_period` to be overwritten to 127 seconds in the netlink payload). Because the timer was set to 127 seconds, but the reproducer only waited for 1 second before destroying the tree, the timer never fired during the destruction window, and the race condition was missed.

To bypass any `tc` parsing bugs or version mismatches entirely, we can construct and send the raw netlink messages (`RTM_NEWQDISC` and `RTM_DELQDISC`) directly in C. This guarantees that `perturb_period` is exactly 1 second and that the qdisc tree is created exactly as intended.

The race condition occurs because `__qdisc_destroy` removes a qdisc from the hash (`qdisc_hash_del`) before recursively destroying its children. If an `sfq` child's `perturb_timer` fires during this window, it calls `qdisc_tree_reduce_backlog`, which walks up the tree. If it encounters an ancestor that has already been unhashed, it triggers the `WARN_ON_ONCE`.

By creating a deep tree of `prio` qdiscs (which take time to destroy recursively) with `sfq` leaves, and timing the destruction of the root qdisc to overlap exactly with the 1-second timer firing, we can reliably trigger the warning.

### C Reproducer

```c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>

#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj,min) (((maj)&TC_H_MAJ_MASK)|((min)&TC_H_MIN_MASK))
#define TC_H_MAJ(h) ((h)&TC_H_MAJ_MASK)
#define TC_H_MIN(h) ((h)&TC_H_MIN_MASK)
#define TC_H_ROOT (0xFFFFFFFFU)

#ifndef TC_PRIO_MAX
#define TC_PRIO_MAX 15
#endif

struct tc_prio_qopt_v {
    int bands;
    uint8_t priomap[TC_PRIO_MAX+1];
};

struct tc_sfq_qopt_v {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

static int addattr_l(struct nlmsghdr *n, size_t maxlen, int type, const void *data, size_t alen) {
    size_t len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) return -1;
    rta = (struct rtattr *)((char *)n + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data && alen > 0) memcpy(RTA_DATA(rta), data, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
    return 0;
}

int add_qdisc(int fd, int ifindex, uint32_t parent, uint32_t handle, const char *kind, void *opt, int opt_len) {
    char buf[2048];
    struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
    struct tcmsg *tcm;
    memset(buf, 0, sizeof(buf));

    nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    nlh->nlmsg_type = RTM_NEWQDISC;
    nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_REPLACE;
    nlh->nlmsg_seq = 1;

    tcm = (struct tcmsg *)NLMSG_DATA(nlh);
    tcm->tcm_family = AF_UNSPEC;
    tcm->tcm_ifindex = ifindex;
    tcm->tcm_parent = parent;
    tcm->tcm_handle = handle;

    addattr_l(nlh, sizeof(buf), TCA_KIND, kind, strlen(kind) + 1);
    if (opt && opt_len > 0) {
        addattr_l(nlh, sizeof(buf), TCA_OPTIONS, opt, opt_len);
    }

    struct sockaddr_nl sa = { .nl_family = AF_NETLINK };
    return sendto(fd, buf, nlh->nlmsg_len, 0, (struct sockaddr *)&sa, sizeof(sa));
}

int delete_qdisc(int fd, int ifindex) {
    char buf[512];
    struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
    struct tcmsg *tcm;
    memset(buf, 0, sizeof(buf));

    nlh->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    nlh->nlmsg_type = RTM_DELQDISC;
    nlh->nlmsg_flags = NLM_F_REQUEST;
    nlh->nlmsg_seq = 2;

    tcm = (struct tcmsg *)NLMSG_DATA(nlh);
    tcm->tcm_family = AF_UNSPEC;
    tcm->tcm_ifindex = ifindex;
    tcm->tcm_parent = TC_H_ROOT;
    tcm->tcm_handle = 0;

    struct sockaddr_nl sa = { .nl_family = AF_NETLINK };
    return sendto(fd, buf, nlh->nlmsg_len, 0, (struct sockaddr *)&sa, sizeof(sa));
}

void generate_classes(int fd, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) {
        struct tc_sfq_qopt_v sfq_opt = {0};
        sfq_opt.perturb_period = 1; // Exactly 1 second
        uint32_t my_handle = TC_H_MAKE(*handle_counter, 0);
        (*handle_counter)++;
        add_qdisc(fd, ifindex, parent, my_handle, "sfq", &sfq_opt, sizeof(sfq_opt));
        return;
    }
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter, 0);
    (*handle_counter)++;
    struct tc_prio_qopt_v prio_opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    add_qdisc(fd, ifindex, parent, my_handle, "prio", &prio_opt, sizeof(prio_opt));
    
    for (int i = 1; i <= 3; i++) {
        generate_classes(fd, ifindex, TC_H_MAKE(TC_H_MAJ(my_handle), i), level - 1, handle_counter);
    }
}

void *racer(void *arg) {
    long id = (long)arg;
    char cmd[256];
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    sprintf(cmd, "ip link add %s type dummy 2>/dev/null", ifname);
    system(cmd);
    sprintf(cmd, "ip link set %s up", ifname);
    system(cmd);
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) return NULL;
    
    int fd_nl = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd_nl < 0) return NULL;
    
    // Increase socket buffer size to avoid ENOBUFS during rapid tree creation
    int sndbuf = 1024 * 1024;
    setsockopt(fd_nl, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));

    int fd_pkt = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (fd_pkt < 0) return NULL;

    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));

    while (1) {
        delete_qdisc(fd_nl, ifindex);
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        // 1. Create a deep tree of PRIO -> SFQ qdiscs (1093 qdiscs total)
        struct tc_prio_qopt_v prio_opt = {
            .bands = 3,
            .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
        };
        add_qdisc(fd_nl, ifindex, TC_H_ROOT, TC_H_MAKE(1, 0), "prio", &prio_opt, sizeof(prio_opt));
        
        int handle_counter = 2;
        for (int i = 1; i <= 3; i++) {
            generate_classes(fd_nl, ifindex, TC_H_MAKE(1 << 16, i), 5, &handle_counter);
        }
        
        // 2. Enqueue packets to ensure sfq_rehash is called when the timer fires
        for (int p = 0; p < 16; p++) {
            setsockopt(fd_pkt, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 20; i++) {
                udp->source = htons(i);
                sendto(fd_pkt, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        // 3. Sleep until exactly 1 second has passed since the timers were armed.
        // We add a random jitter (-50ms to +50ms) to ensure we hit the exact microsecond 
        // where the timer fires concurrently with the tree destruction.
        long sleep_us = 1000000 - elapsed_us;
        if (sleep_us > 0) {
            long jitter = (rand_r(&seed) % 100000) - 50000;
            if (sleep_us + jitter > 0)
                usleep(sleep_us + jitter);
        }
    }
    return NULL;
}

int main() {
    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) < 0) {
        perror("unshare");
        return 1;
    }
    
    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getuid()); fclose(f); }
    f = fopen("/proc/self/setgroups", "w");
    if (f) { fprintf(f, "deny\n"); fclose(f); }
    f = fopen("/proc/self/gid_map", "w");
    if (f) { fprintf(f, "0 %d 1\n", getgid()); fclose(f); }
    
    system("ip link set lo up");

    pthread_t th[4];
    for (long i = 0; i < 4; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 4; i++) {
        pthread_join(th[i], NULL);
    }
    
    return 0;
}
```


Previous Reproducer Attempt:
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/rtnetlink.h>
#include <sys/ioctl.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct my_tc_sfqred_stats {
    uint32_t prob_drop;
    uint32_t forced_drop;
    uint32_t prob_mark;
    uint32_t forced_mark;
    uint32_t prob_mark_head;
    uint32_t forced_mark_head;
};

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0;
    unsigned int depth;
    unsigned int headdrop;
    uint32_t limit;
    uint32_t qth_min;
    uint32_t qth_max;
    unsigned char Wlog;
    unsigned char Plog;
    unsigned char Scell_log;
    unsigned char flags;
    uint32_t max_P;
    struct my_tc_sfqred_stats stats;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta;
    if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
        printf("[-] addattr_l overflow\n");
        exit(1);
    }
    rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int maxlen, int type, const char *str) {
    addattr_l(n, maxlen, type, str, strlen(str) + 1);
}

struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type) {
    struct rtattr *nest = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    addattr_l(n, maxlen, type, NULL, 0);
    return nest;
}

void addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest) {
    nest->rta_len = (char *)n + NLMSG_ALIGN(n->nlmsg_len) - (char *)nest;
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

struct nlmsghdr *batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {0};
    opt.bands = 3;
    for (int i = 0; i < 16; i++) opt.priomap[i] = i % 3;
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

struct nlmsghdr *batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, 2048, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt_v1 opt = {0};
    opt.v0.perturb_period = 1;
    opt.v0.limit = 127;
    opt.v0.divisor = 1024;
    opt.v0.flows = 127;
    opt.v0.quantum = 1;
    opt.depth = 1;
    opt.headdrop = 0;
    
    addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
    return n;
}

int batch_send(int fd, struct nl_batch *b, uint32_t expected_seq) {
    if (b->offset == 0) return 0;
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        printf("[-] Failed to send batch: %s\n", strerror(errno));
        return -1;
    }
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            printf("[-] Failed to recv batch response: %s\n", strerror(errno));
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (err->error != 0 && err->error != -EEXIST) {
                    // Ignore errors to allow the test to proceed
                }
                if (nlh->nlmsg_seq == expected_seq) {
                    return 0;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

struct nlmsghdr *generate_classes(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    struct nlmsghdr *n;
    if (level == 0) {
        n = batch_add_sfq(b, ifindex, parent, TC_H_MAKE(*handle_counter << 16, 0));
        (*handle_counter)++;
        if (b->offset > 1024 * 1024) {
            n->nlmsg_flags |= NLM_F_ACK;
            batch_send(nl_fd, b, n->nlmsg_seq);
            b->offset = 0;
        }
        return n;
    }
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    n = batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 1024 * 1024) {
        n->nlmsg_flags |= NLM_F_ACK;
        batch_send(nl_fd, b, n->nlmsg_seq);
        b->offset = 0;
    }
    
    for (int i = 1; i <= 3; i++) {
        n = generate_classes(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
    return n;
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
        char buf[1024];
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    req.n.nlmsg_seq = 999999;
    req.n.nlmsg_pid = getpid();
    
    if (send(fd, &req.n, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EWOULDBLOCK) {
                return 0;
            }
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_dummy(const char *name) {
    int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (fd < 0) return -1;
    
    struct timeval tv;
    tv.tv_sec = 1;
    tv.tv_usec = 0;
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    struct {
        struct nlmsghdr n;
        struct ifinfomsg i;
        char buf[1024];
    } req = {0};
    
    req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
    req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK;
    req.n.nlmsg_type = RTM_NEWLINK;
    req.n.nlmsg_seq = 1;
    req.i.ifi_family = AF_UNSPEC;
    
    addattr_str(&req.n, sizeof(req), IFLA_IFNAME, name);
    struct rtattr *linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
    addattr_str(&req.n, sizeof(req), IFLA_INFO_KIND, "dummy");
    addattr_nest_end(&req.n, linkinfo);
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) {
        close(fd);
        return -1;
    }
    
    char buf[8192];
    recv(fd, buf, sizeof(buf), 0);
    close(fd);
    return 0;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

int get_ifindex(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return ifr.ifr_ifindex;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "dummy%ld", id);
    
    if (create_dummy(ifname) < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = get_ifindex(ifname);
    if (ifindex <= 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        printf("[-] Failed to create netlink socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct timeval tv;
    tv.tv_sec = 2;
    tv.tv_usec = 0;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
    
    int sndbuf = 8 * 1024 * 1024;
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
    if (sock < 0) {
        printf("[-] Failed to create packet socket: %s\n", strerror(errno));
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_ifindex = ifindex;
    sall.sll_halen = ETH_ALEN;
    
    unsigned int seed = time(NULL) + id;
    
    struct nl_batch b;
    batch_init(&b, 8 * 1024 * 1024);
    
    char pkt[64] = {0};
    struct ethhdr *eth = (struct ethhdr *)pkt;
    struct iphdr *ip = (struct iphdr *)(pkt + sizeof(struct ethhdr));
    struct udphdr *udp = (struct udphdr *)(pkt + sizeof(struct ethhdr) + sizeof(struct iphdr));

    eth->h_proto = htons(ETH_P_IP);
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(sizeof(struct iphdr) + sizeof(struct udphdr));
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x01020304);
    ip->daddr = htonl(0x05060708);
    udp->len = htons(sizeof(struct udphdr));
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 20; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        struct nlmsghdr *n = batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        int handle_counter = 2;
        
        struct nlmsghdr *last_n = n;
        for (int i = 1; i <= 3; i++) {
            last_n = generate_classes(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, i), 6, &handle_counter);
        }
        
        if (b.offset > 0 && last_n) {
            last_n->nlmsg_flags |= NLM_F_ACK;
            if (batch_send(nl_fd, &b, last_n->nlmsg_seq) < 0) {
                printf("[-] batch_send failed\n");
            }
            b.offset = 0;
        }
        
        struct timespec start, end;
        clock_gettime(CLOCK_MONOTONIC, &start);
        
        for (int p = 0; p < 16; p++) {
            setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
        
        clock_gettime(CLOCK_MONOTONIC, &end);
        long elapsed_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
        
        long target_us = 990000 + (rand_r(&seed) % 20000);
        long sleep_us = target_us - elapsed_us;
        if (sleep_us > 0) {
            usleep(sleep_us);
        }
        
        del_qdisc_root(nl_fd, ifindex);
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[2];
    for (long i = 0; i < 2; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 2; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}




Execution Results & Debugging Feedback:
The reproducer failed to trigger the bug because of a timing mismatch in the race condition.

The bug is a race condition between the destruction of a classful qdisc (e.g., `prio`) and the `perturb_timer` of its child qdisc (e.g., `sfq`). 
When a parent qdisc is destroyed, `__qdisc_destroy` removes the parent from the qdisc hash (`qdisc_hash_del`) BEFORE calling its `destroy` operation. The `destroy` operation of the parent then calls `qdisc_put` on its children, which synchronously destroys them and cancels their timers (e.g., `timer_delete_sync(&q->perturb_timer)` in `sfq_destroy`). 
However, there is a small race window between the parent being removed from the hash and the child's timer being canceled. If the child's timer (`sfq_perturbation`) fires during this window, it calls `sfq_rehash` -> `qdisc_tree_reduce_backlog`. `qdisc_tree_reduce_backlog` looks up the parent in the hash using `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`. Since the parent was already removed from the hash, the lookup returns `NULL`, triggering the `WARN_ON_ONCE(parentid != TC_H_ROOT)`.

The provided C reproducer fails to trigger this because it sets the `sfq` qdisc's `perturb_period` to 127 seconds (`\x7f\x00\x00\x00` in the netlink payload). It then creates the qdiscs and either replaces them immediately or never destroys them. 
- If it replaces them immediately, the tree is destroyed before the 127-second timer can fire, so the timer is safely canceled.
- If it never destroys them, the timer fires after 127 seconds, but the parent is still in the hash, so no warning is hit.

In the original syzkaller run, this was likely triggered by a cross-program interaction where one program created the qdiscs on a persistent interface, and another program destroyed them 127 seconds later exactly when the timer fired.

To reproduce the bug reliably:
1. Modify the netlink payload to set `perturb_period` to 1 second (`\x01\x00\x00\x00`).
2. Implement a race loop that:
   a. Creates the `prio` root qdisc and the `sfq` child qdisc.
   b. Sleeps for slightly less than 1 second (e.g., `usleep(990000)`).
   c. Destroys the `prio` root qdisc (e.g., via `RTM_DELQDISC` or by replacing the root).
3. Run this loop across multiple threads to increase the chance of the timer firing exactly between `qdisc_hash_del` and `timer_delete_sync`.

855/4 2026/08/15 19:39 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 14040
							output: 25
							thoughts: 1716
						

Thoughts:
**The Race Condition and the Elusive Reproducer**

My primary goal here is to trigger a specific warning within the `qdisc_tree_reduce_backlog` function. This warning is designed to fire when a child qdisc's `perturb_timer` activates *after* its parent qdisc has been destroyed and removed from the hash table, but *before* the parent's destruction process has managed to cancel that timer. The warning condition is simple: if the `parentid` is not `TC_H_ROOT` (meaning it's a child qdisc's parent) and the lookup for that parent `qdisc` in the hash table returns `NULL`, then we hit the `WARN_ON_ONCE(1)`. This indicates a race condition where the child is trying to operate on a parent that no longer exists in the qdisc tree.

I understand the sequence of events leading to this race:
1.  `__qdisc_destroy` is called, removing the parent qdisc from the internal hash table.
2.  Concurrently, the child qdisc's `perturb_timer` fires.
3.  The timer callback invokes `qdisc_tree_reduce_backlog`.
4.  Inside `qdisc_tree_reduce_backlog`, when it tries to look up the parent qdisc using `qdisc_lookup_rcu`, it finds `NULL` because the parent has already been removed.
5.  The `WARN_ON_ONCE(1)` is triggered.
6.  Later, the parent's `destroy` function *would* have canceled the child's timer, but it's too late for the current execution path.

My initial attempts to reproduce this involved setting a short `perturb_period` (specifically 1 second) and then attempting to destroy the root qdisc while sleeping for a duration that would allow the timer to fire. However, the feedback indicates a persistent failure. The core of the problem seems to lie in how the `perturb_period` is being set in the netlink payload.

The feedback is quite specific: "The provided C reproducer fails to trigger this because it sets the sfq qdisc's perturb_period to 127 seconds (\x7f\x00\x00\x00 in the netlink payload)." This is perplexing because I recall setting `opt.v0.perturb_period = 1;` in my reproducer. The only way this could happen is if there's a mismatch in the struct layout or interpretation between my user-space code and the kernel's expectation.

I've been digging into the `tc_sfq_qopt` and its extended version, `tc_sfq_qopt_v1`, to understand the exact field offsets. My user-space reproducer defines `struct my_tc_sfq_qopt` which mirrors `struct tc_sfq_qopt`. It includes fields like `quantum`, `perturb_period`, `limit`, `divisor`, and `flows`. The kernel's `struct tc_sfq_qopt` has the same fields. My initial thought was that perhaps the `unsigned` type was causing an issue, but on both user-space and kernel sides (especially on 64-bit systems), `unsigned int` is typically 4 bytes.

The critical piece of information is that the feedback suggests `perturb_period` is being set to 127, represented as `\x7f\x00\x00\x00` in the payload. This hex value, `0x7f000000`, is indeed 2130706432, which is far from 127. *However*, if we look at a *single byte*, `0x7f` is 127. This strongly implies that the `perturb_period` field is being misinterpreted or corrupted, potentially due to an incorrect offset or size assumption when the netlink message is constructed or parsed.

I've re-examined the reproducer structure and the kernel's `tc_sfq_qopt` definition.
My `struct my_tc_sfq_qopt`:
```c
struct my_tc_sfq_qopt {
    unsigned quantum;        // 4 bytes
    int perturb_period;      // 4 bytes
    uint32_t limit;          // 4 bytes
    unsigned divisor;        // 4 bytes
    unsigned flows;          // 4 bytes
};
```
The kernel's `struct tc_sfq_qopt`:
```c
struct tc_sfq_qopt {
    unsigned	quantum;	/* Bytes per round allocated to flow */ // 4 bytes
    int		perturb_period;	/* Period of hash perturbation */ // 4 bytes
    __u32		limit;		/* Maximal packets in queue */ // 4 bytes
    unsigned	divisor;	/* Hash divisor  */ // 4 bytes
    unsigned	flows;		/* Maximal number of flows  */ // 4 bytes
};
```
If the structure definitions are identical in terms of field types and order, and `unsigned` is consistently 4 bytes, then setting `opt.v0.perturb_period = 1;` *should* result in `0x01000000` being sent for that field. The fact that it's interpreted as `\x7f\x00\x00\x00` for `perturb_period` suggests a more subtle issue.

The feedback mentions `\x7f\x00\x00\x00` as the value for `perturb_period`. If this value is indeed what's being sent *for the perturb_period field itself*, then it's not just a simple byte corruption. It seems like the value 127 is somehow being derived from the `limit = 127;` assignment, or perhaps the `limit` field is being written into the `perturb_period` slot due to a miscalculation in the netlink message packing.

My immediate next step is to meticulously verify the packing of the `tc_sfq_qopt` structure into the netlink message. I need to ensure that the offsets are correct and that the `limit` value isn't inadvertently overwriting or corrupting `perturb_period`. I'll use `codesearch-struct-layout` to get definitive offsets and then trace the netlink message construction to pinpoint where this misinterpretation is occurring. This is crucial for getting the `perturb_period` set correctly to a low value, enabling the race condition to manifest.


856/4 2026/08/15 19:40 tool codesearch-struct-layout
0m Args:
map[Name:tc_sfq_qopt]

Results:
map[Fields:[map[Name:quantum OffsetBits:0 SizeBits:32] map[Name:perturb_period OffsetBits:32 SizeBits:32] map[Name:limit OffsetBits:64 SizeBits:32] map[Name:divisor OffsetBits:96 SizeBits:32] map[Name:flows OffsetBits:128 SizeBits:32]]]

857/4 2026/08/15 19:40 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 15837
							output: 22
							thoughts: 190
						

Thoughts:
**My Thought Process Regarding SFQ Netlink Payload Interpretation**

My initial contemplation began with dissecting the known sizes of the SFQ (Stochastic Fairness Queuing) parameters. I understood that `quantum` is a 32-bit integer, `perturb_period` is also 32 bits, and `limit` is similarly 32 bits. Based on this, I deduced that `perturb_period` would reside at offset 4 within the netlink payload, immediately following the 32 bits allocated for `quantum`.

However, a discrepancy arose when I considered the feedback I received, which stated: "sets the sfq qdisc's perturb_period to 127 seconds (\x7f\x00\x00\x00 in the netlink payload)". This feedback presented `perturb_period` as `\x7f\x00\x00\x00`, which, when interpreted as a little-endian 32-bit integer, translates to 127. This directly contradicted my expectation of `perturb_period` being at offset 4 and having a specific byte representation based on its value.

This led me to question the literal byte-level interpretation. I hypothesized a scenario where `quantum` was set to 0 (represented as `00 00 00 00` in bytes) and `perturb_period` was set to 1 (represented as `01 00 00 00` in little-endian). If this were the case, the initial portion of the netlink payload would appear as `00 00 00 00 01 00 00 00`. This still didn't align with the feedback's `\x7f\x00\x00\x00` for `perturb_period`.

The core of my confusion then shifted to the possibility that the kernel's parsing mechanism for the netlink payload might not be a simple sequential reading of fixed-size fields. I began to suspect that there might be a more nuanced interpretation or a different ordering of these parameters within the actual kernel code. To resolve this, I resolved to examine the source code of the `sfq_change` function within `net/sched/sch_sfq.c` to understand precisely how the kernel unpacks and interprets the netlink message and its associated attributes. This direct inspection would be the most reliable way to reconcile the observed feedback with my theoretical understanding of the data structure.


858/4 2026/08/15 19:40 tool codesearch-definition-source
0m Args:
map[Name:sfq_change]

Results:
map[SourceCode: 630:	static int sfq_change(struct Qdisc *sch, struct nlattr *opt,
 631:			      struct netlink_ext_ack *extack)
 632:	{
 633:		struct sfq_sched_data *q = qdisc_priv(sch);
 634:		struct tc_sfq_qopt *ctl = nla_data(opt);
 635:		struct tc_sfq_qopt_v1 *ctl_v1 = NULL;
 636:		unsigned int qlen, dropped = 0;
 637:		struct red_parms *p = NULL;
 638:		struct sk_buff *to_free = NULL;
 639:		struct sk_buff *tail = NULL;
 640:		unsigned int maxflows;
 641:		unsigned int quantum;
 642:		unsigned int divisor;
 643:		int perturb_period;
 644:		u8 headdrop;
 645:		u8 maxdepth;
 646:		int limit;
 647:		u8 flags;
 648:	
 649:	
 650:		if (opt->nla_len < nla_attr_size(sizeof(*ctl)))
 651:			return -EINVAL;
 652:		if (opt->nla_len >= nla_attr_size(sizeof(*ctl_v1)))
 653:			ctl_v1 = nla_data(opt);
 654:		if (ctl->divisor &&
 655:		    (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536))
 656:			return -EINVAL;
 657:	
 658:		if ((int)ctl->quantum < 0) {
 659:			NL_SET_ERR_MSG_MOD(extack, "invalid quantum");
 660:			return -EINVAL;
 661:		}
 662:	
 663:		if (ctl->perturb_period < 0 ||
 664:		    ctl->perturb_period > INT_MAX / HZ) {
 665:			NL_SET_ERR_MSG_MOD(extack, "invalid perturb period");
 666:			return -EINVAL;
 667:		}
 668:		perturb_period = ctl->perturb_period * HZ;
 669:	
 670:		if (ctl_v1 && !red_check_params(ctl_v1->qth_min, ctl_v1->qth_max,
 671:						ctl_v1->Wlog, ctl_v1->Scell_log, NULL))
 672:			return -EINVAL;
 673:		if (ctl_v1 && ctl_v1->qth_min) {
 674:			p = kmalloc_obj(*p);
 675:			if (!p)
 676:				return -ENOMEM;
 677:		}
 678:	
 679:		sch_tree_lock(sch);
 680:	
 681:		limit = q->limit;
 682:		divisor = q->divisor;
 683:		headdrop = q->headdrop;
 684:		maxdepth = q->maxdepth;
 685:		maxflows = q->maxflows;
 686:		quantum = q->quantum;
 687:		flags = q->flags;
 688:	
 689:		/* update and validate configuration */
 690:		if (ctl->quantum)
 691:			quantum = ctl->quantum;
 692:		if (ctl->flows)
 693:			maxflows = min_t(u32, ctl->flows, SFQ_MAX_FLOWS);
 694:		if (ctl->divisor) {
 695:			divisor = ctl->divisor;
 696:			maxflows = min_t(u32, maxflows, divisor);
 697:		}
 698:		if (ctl_v1) {
 699:			if (ctl_v1->depth)
 700:				maxdepth = min_t(u32, ctl_v1->depth, SFQ_MAX_DEPTH);
 701:			if (p) {
 702:				red_set_parms(p,
 703:					      ctl_v1->qth_min, ctl_v1->qth_max,
 704:					      ctl_v1->Wlog,
 705:					      ctl_v1->Plog, ctl_v1->Scell_log,
 706:					      NULL,
 707:					      ctl_v1->max_P);
 708:			}
 709:			flags = ctl_v1->flags;
 710:			headdrop = ctl_v1->headdrop;
 711:		}
 712:		if (ctl->limit) {
 713:			limit = min_t(u32, ctl->limit, maxdepth * maxflows);
 714:			maxflows = min_t(u32, maxflows, limit);
 715:		}
 716:		if (limit == 1) {
 717:			sch_tree_unlock(sch);
 718:			kfree(p);
 719:			NL_SET_ERR_MSG_MOD(extack, "invalid limit");
 720:			return -EINVAL;
 721:		}
 722:	
 723:		/* commit configuration */
 724:		q->limit = limit;
 725:		q->divisor = divisor;
 726:		q->headdrop = headdrop;
 727:		q->maxdepth = maxdepth;
 728:		q->maxflows = maxflows;
 729:		WRITE_ONCE(q->perturb_period, perturb_period);
 730:		q->quantum = quantum;
 731:		q->flags = flags;
 732:		if (p)
 733:			swap(q->red_parms, p);
 734:	
 735:		qlen = sch->q.qlen;
 736:		while (sch->q.qlen > q->limit) {
 737:			dropped += sfq_drop(sch, &to_free);
 738:			if (!tail)
 739:				tail = to_free;
 740:		}
 741:	
 742:		rtnl_kfree_skbs(to_free, tail);
 743:		qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);
 744:	
 745:		timer_delete(&q->perturb_timer);
 746:		if (q->perturb_period) {
 747:			mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
 748:			get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 749:		}
 750:		sch_tree_unlock(sch);
 751:		kfree(p);
 752:		return 0;
 753:	}
 SourceFile:net/sched/sch_sfq.c]

859/4 2026/08/15 19:40 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 18015
							output: 21
							thoughts: 1066
						

Thoughts:
**My Thought Process on the `opt->nla_len < nla_attr_size(sizeof(*ctl))` Discrepancy**

I've hit a snag and I'm trying to trace where this `opt->nla_len < nla_attr_size(sizeof(*ctl))` condition is coming from, specifically trying to understand the origin of `opt`.

I see that `opt` is populated by `addattr_l(n, 2048, TCA_OPTIONS, &opt, sizeof(opt));`. Here, `sizeof(opt)` is the size of `struct my_tc_sfq_qopt_v1`.

Now, a crucial piece of information: `nla_data(opt)` gives me `ctl`. This means `ctl` is pointing to the data within the `TCA_OPTIONS` attribute, which should be `struct tc_sfq_qopt`.

Let me recall the structure I used in my reproducer:
```c
struct my_tc_sfq_qopt_v1 opt = {0};
opt.v0.perturb_period = 1;
opt.v0.limit = 127;
opt.v0.divisor = 1024;
opt.v0.flows = 127;
opt.v0.quantum = 1;
opt.v0.depth = 1; // Corrected: this should be opt.depth = 1
opt.v0.headdrop = 0; // Corrected: this should be opt.headdrop = 0
```
Okay, I need to be careful here. I was defining `depth` and `headdrop` directly, not within `v0`. The actual structure of `my_tc_sfq_qopt_v1` that I've defined, and importantly, the kernel's `struct tc_sfq_qopt_v1`, looks like this:

My `my_tc_sfq_qopt_v1` structure:
```c
struct my_tc_sfq_qopt {
    unsigned quantum; // 4 bytes
    int perturb_period; // 4 bytes
    uint32_t limit; // 4 bytes
    unsigned divisor; // 4 bytes
    unsigned flows; // 4 bytes
}; // Total 20 bytes

struct my_tc_sfq_qopt_v1 {
    struct my_tc_sfq_qopt v0; // 20 bytes
    unsigned int depth; // 4 bytes
    unsigned int headdrop; // 4 bytes
    uint32_t limit; // 4 bytes (This is the version 1 limit)
    uint32_t qth_min; // 4 bytes
    uint32_t qth_max; // 4 bytes
    unsigned char Wlog; // 1 byte
    unsigned char Plog; // 1 byte
    unsigned char Scell_log; // 1 byte
    unsigned char flags; // 1 byte
    uint32_t max_P; // 4 bytes
    struct my_tc_sfqred_stats stats; // 24 bytes
}; // 20 + 4*5 + 4 + 4 + 24 = 72 bytes
```

Now, the kernel's `struct tc_sfq_qopt_v1`:
```c
struct tc_sfq_qopt_v1 {
	struct tc_sfq_qopt v0; // Contains quantum, perturb_period, limit (v0)
	unsigned int	depth;		/* max number of packets per flow */
	unsigned int	headdrop;
/* SFQRED Parameters */
	__u32		limit;		/* HARD maximal flow queue length (bytes) - This is v1 limit */
	__u32		qth_min;	/* Min average length threshold (bytes) */
	__u32		qth_max;	/* Max average length threshold (bytes) */
	unsigned char   Wlog;		/* log(W)		*/
	unsigned char   Plog;		/* log(P_max)/(qth_max-qth_min)	*/
	unsigned char   Scell_log;	/* cell size for idle damping */
	unsigned char	flags;
	__u32		max_P;		/* probability, high resolution */
	struct tc_sfqred_stats stats;
};
```

I'm checking for padding. My `v0` struct is naturally aligned. Then `depth` (4 bytes), `headdrop` (4 bytes), `limit` (4 bytes), `qth_min` (4 bytes), `qth_max` (4 bytes). The `unsigned char` fields (`Wlog`, `Plog`, `Scell_log`, `flags`) together take up 4 bytes. Then `max_P` is 4 bytes. It appears naturally aligned in my definition and the kernel's definition. So, padding doesn't seem to be the immediate culprit for a structural shift.

Now, the confusing part: the feedback mentioned `perturb_period` was 127. In my reproducer, I set `opt.v0.limit = 127;`. This suggests that the kernel might be interpreting the value I intended for `limit` as `perturb_period`. This would imply a misinterpretation of the struct's layout, specifically a 4-byte shift.

Why would it read `limit` as `perturb_period`? This could happen if the kernel expects `perturb_period` to be at a certain offset, but the data it received has it shifted. If `quantum` is 4 bytes and `perturb_period` is also 4 bytes, and the kernel incorrectly reads the value at the `perturb_period` offset as `limit`, it means the *entire structure* might be perceived as shifted by 4 bytes from its expected position.

So, the question becomes: why would the `TCA_OPTIONS` attribute, when interpreted by the kernel for `sfq`, have its structure shifted by 4 bytes?

I need to investigate how `TCA_OPTIONS` is handled specifically for the `sfq` module in the `tc` userspace utility. Is there a nested attribute I'm missing? No, for `sfq`, `TCA_OPTIONS` is typically expected to contain the `struct tc_sfq_qopt` or `struct tc_sfq_qopt_v1` directly.

This points me back to scrutinizing the exact `tc` source code that handles `sfq` and its attributes. I need to see how it parses `TCA_OPTIONS` and maps the received data to the expected kernel structures. That's my next step.


860/4 2026/08/15 19:40 tool grepper
0m Error:
log-in to see details

Args:
map[Expression:TCA_OPTIONS.*sfq]

Results:
map[Output:]

861/4 2026/08/15 19:40 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 19104
							output: 43
							thoughts: 115
						

Thoughts:
**My Thought Process Regarding `sch_sfq.c` and `pkt_sched.h`**

Alright, I'm going back into `net/sched/sch_sfq.c` to scrutinize this section. I've just confirmed that the `ctl` variable, which is assigned the result of `nla_data(opt)`, is indeed pointing directly to the `struct tc_sfq_qopt` structure. This is a critical point. My immediate follow-up thought is: "Is this `struct tc_sfq_qopt` the *exact* structure I had in mind, the one I defined or expect to be using?" To verify this, the next logical step for me is to dive into the header file where `struct tc_sfq_qopt` is defined, which in this context, I'm confident is `include/uapi/linux/pkt_sched.h`. I need to ensure there are no discrepancies, no subtle differences in field ordering, sizes, or types, that could lead to misinterpretations or data corruption later on. This cross-referencing is vital for maintaining data integrity and correctness in network scheduling implementations.


862/4 2026/08/15 19:40 tool codesearch-definition-source
0m Args:
map[ContextFile:include/uapi/linux/pkt_sched.h Name:tc_sfq_qopt]

Results:
map[SourceCode: 213:	struct tc_sfq_qopt {
 214:		unsigned	quantum;	/* Bytes per round allocated to flow */
 215:		int		perturb_period;	/* Period of hash perturbation */
 216:		__u32		limit;		/* Maximal packets in queue */
 217:		unsigned	divisor;	/* Hash divisor  */
 218:		unsigned	flows;		/* Maximal number of flows  */
 219:	};
 SourceFile:include/uapi/linux/pkt_sched.h]

863/4 2026/08/15 19:40 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 19398
							output: 22
							thoughts: 4923
						

Thoughts:
**My Thought Process on the `tc_sfq_qopt` Structure and Netlink Payload**

This is confusing. I'm trying to craft a netlink message to set up an `sfq` qdisc and then trigger a race condition. The goal is to have the `sfq` qdisc's `perturb_timer` fire right as its parent qdisc is being destroyed. This requires the `sfq` qdisc to have a `perturb_period` of 1 second.

Now, I'm looking at the `tc_sfq_qopt` structure and its byte offsets. I know that `unsigned` and `int` are typically 4 bytes on the systems I'm dealing with, and `__u32` is also 4 bytes. So, based on the typical definition of `struct tc_sfq_qopt`:

```c
struct tc_sfq_qopt {
    unsigned quantum;           // Offset 0 (4 bytes)
    int perturb_period;        // Offset 4 (4 bytes)
    uint32_t limit;            // Offset 8 (4 bytes)
    unsigned divisor;          // Offset 12 (4 bytes)
    unsigned flows;            // Offset 16 (4 bytes)
};
```

This layout seems straightforward. My previous attempts, both the command-line one and the first C netlink reproducer, aimed to set `perturb_period` to 1. However, I'm getting feedback that the `perturb_period` is being set to 127 seconds, indicated by `\x7f\x00\x00\x00` in the netlink payload. This is a significant discrepancy.

I've been re-examining the provided C code:

*   The "Previous Reproducer Attempt" code clearly shows `opt.v0.perturb_period = 1;`.
*   The `addattr_l` function, which I'm using to add the `TCA_OPTIONS` attribute, appears to be correctly copying the data from the `struct my_tc_sfq_qopt_v1 opt` into the netlink message.

So, why would the kernel receive 127 when I'm sending 1?

I'm considering several possibilities:

1.  **Struct Layout Mismatch:** Could the kernel's interpretation of `struct tc_sfq_qopt` differ from my assumptions? I re-checked `codesearch-struct-layout` and the `include/uapi/linux/pkt_sched.h` header, and the layout I assumed (`quantum` at 0, `perturb_period` at 4, `limit` at 8, etc.) seems correct based on standard C type sizes. There's no obvious padding.

2.  **Feedback Misinterpretation/Hallucination:** Is the feedback I'm receiving simply incorrect? Perhaps it's analyzing a different run, or it's a hallucinated output from the system itself. The fact that *both* C reproducers in the prompt explicitly set `perturb_period = 1` makes the feedback about it being 127 highly suspect.

3.  **Hidden Kernel Logic:** Could there be some hidden logic in `sfq_change` (the kernel function that processes `RTM_NEWQDISC` for `sfq`) that's causing this? For instance, if the kernel expected a nested attribute for `TCA_OPTIONS` when it's actually a direct struct, it might misinterpret the data. However, the code `struct tc_sfq_qopt *ctl = nla_data(opt);` in `sfq_change` strongly suggests it's expecting a flat structure.

4.  **Interaction with `limit` or `flows`:** The feedback specifically mentions `\x7f\x00\x00\x00` which is 127. In the "Previous Reproducer Attempt," `opt.v0.limit = 127;` and `opt.v0.flows = 127;`. This is a significant clue. If the kernel *somehow* reads the value intended for `limit` (at offset 8) or `flows` (at offset 16) into the `perturb_period` field (at offset 4), that would explain it. But how could that happen? It would imply a severe parsing error or a completely different struct layout being used by the kernel than what's defined in the headers.

5.  **Previous Reproducer Attempt Context:** The "Strategy" text from an earlier iteration mentions a `tc` command-line bug where `limit 127` could overwrite `perturb_period`. While I'm trying to bypass `tc` entirely with raw netlink, perhaps some residual behavior or a misunderstanding of how the kernel handles these fields when they are zeroed out is at play.

Specifically, looking back at the *first* reproducer:
```c
struct tc_sfq_qopt_v sfq_opt = {0};
sfq_opt.perturb_period = 1; // Exactly 1 second
```
Here, `limit` and `flows` are *zero*. If the kernel were to incorrectly read `limit` (which is 0) into `perturb_period` (which is 1), it wouldn't explain the 127.

However, the "Previous Reproducer Attempt" has `opt.v0.limit = 127;`. If, for some reason, the kernel code reading `TCA_OPTIONS` for `sfq` was mistakenly reading `ctl->limit` when it should have been reading `ctl->perturb_period`, then setting `opt.v0.limit = 127` would indeed cause `perturb_period` to be interpreted as 127. This seems like the most plausible explanation for the feedback, even if it points to a bug in the kernel's parsing of `TCA_OPTIONS` for `sfq`.

Given this, my next step should be to simplify the `tc_sfq_qopt` structure I send. Instead of using `my_tc_sfq_qopt_v1`, I'll use a plain `struct tc_sfq_qopt` and explicitly set only `perturb_period = 1`. This will eliminate any potential issues with the larger, versioned struct (`v1`) and any other fields that might be accidentally read. I'll also ensure I'm sending exactly `sizeof(struct tc_sfq_qopt)` bytes for `TCA_OPTIONS`. If `sfq_change` correctly handles a flat `tc_sfq_qopt` struct, this should work. If it still results in `perturb_period` being 127, it strongly suggests a kernel bug in how it parses `TCA_OPTIONS` for `sfq`, perhaps related to versioning or specific field offsets.


864/4 2026/08/15 19:41 tool codesearch-definition-source
0m Args:
map[Name:sfq_init]

Results:
map[SourceCode: 777:	static int sfq_init(struct Qdisc *sch, struct nlattr *opt,
 778:			    struct netlink_ext_ack *extack)
 779:	{
 780:		struct sfq_sched_data *q = qdisc_priv(sch);
 781:		int i;
 782:		int err;
 783:	
 784:		q->sch = sch;
 785:		timer_setup(&q->perturb_timer, sfq_perturbation, TIMER_DEFERRABLE);
 786:	
 787:		err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
 788:		if (err)
 789:			return err;
 790:	
 791:		for (i = 0; i < SFQ_MAX_DEPTH + 1; i++) {
 792:			q->dep[i].next = i + SFQ_MAX_FLOWS;
 793:			q->dep[i].prev = i + SFQ_MAX_FLOWS;
 794:		}
 795:	
 796:		q->limit = SFQ_MAX_DEPTH;
 797:		q->maxdepth = SFQ_MAX_DEPTH;
 798:		q->cur_depth = 0;
 799:		q->tail = NULL;
 800:		q->divisor = SFQ_DEFAULT_HASH_DIVISOR;
 801:		q->maxflows = SFQ_DEFAULT_FLOWS;
 802:		q->quantum = psched_mtu(qdisc_dev(sch));
 803:		q->perturb_period = 0;
 804:		get_random_bytes(&q->perturbation, sizeof(q->perturbation));
 805:	
 806:		if (opt) {
 807:			int err = sfq_change(sch, opt, extack);
 808:			if (err)
 809:				return err;
 810:		}
 811:	
 812:		q->ht = sfq_alloc(sizeof(q->ht[0]) * q->divisor);
 813:		q->slots = sfq_alloc(sizeof(q->slots[0]) * q->maxflows);
 814:		if (!q->ht || !q->slots) {
 815:			/* Note: sfq_destroy() will be called by our caller */
 816:			return -ENOMEM;
 817:		}
 818:	
 819:		for (i = 0; i < q->divisor; i++)
 820:			q->ht[i] = SFQ_EMPTY_SLOT;
 821:	
 822:		for (i = 0; i < q->maxflows; i++) {
 823:			slot_queue_init(&q->slots[i]);
 824:			sfq_link(q, i);
 825:		}
 826:		if (q->limit >= 1)
 827:			sch->flags |= TCQ_F_CAN_BYPASS;
 828:		else
 829:			sch->flags &= ~TCQ_F_CAN_BYPASS;
 830:		return 0;
 831:	}
 SourceFile:net/sched/sch_sfq.c]

865/4 2026/08/15 19:41 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 25250
							output: 23
							thoughts: 411
						

Thoughts:
**My Thought Process Regarding SFQ and PRIO Qdisc Interactions**

Okay, so my initial thought here is about how `sfq_init` operates. I understand that it establishes default values and then immediately delegates to `sfq_change`. Within `sfq_change`, there's a crucial conditional assignment:

```c
if (ctl->quantum)
    quantum = ctl->quantum;
```

This clearly indicates that if `ctl->quantum` happens to be zero, the default value for `quantum` is preserved. The same logic, I can see, applies to other parameters like `flows`, `divisor`, and `limit`. This leads me to believe that I can effectively send a `struct tc_sfq_qopt` that's entirely zeroed out, with the sole exception of setting `perturb_period` to `1`. This should allow me to leverage the default settings while ensuring perturbation is active.

Now, shifting my focus to the `prio` qdisc options, I've been examining its structure. I see that `struct tc_prio_qopt` contains `bands` and a `priomap`. Given that `TC_PRIO_MAX` is 15, the `priomap` array will be 16 bytes. Therefore, the total size of `struct tc_prio_qopt` comes out to 4 bytes for `bands` plus 16 bytes for `priomap`, totaling 20 bytes. I've also mentally sketched out an example instantiation:

```c
struct tc_prio_qopt opt = {
    .bands = 3,
    .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
};
```

My current objective is to figure out how to trigger a race condition. To achieve this, I need `sfq_perturbation` to execute. I know that `sfq_perturbation` in turn calls `sfq_rehash`. The next step in my investigation is to understand precisely what `sfq_rehash` does. Specifically, I'm trying to determine if `sfq_rehash` *only* drops packets when the rehashed flows exceed their limits, or if it has a more general packet dropping mechanism. I need to dig into the `sfq_rehash` function itself to clarify this.


866/4 2026/08/15 19:41 tool codesearch-definition-source
0m Args:
map[Name:sfq_rehash]

Results:
map[SourceCode: 528:	/*
 529:	 * When q->perturbation is changed, we rehash all queued skbs
 530:	 * to avoid OOO (Out Of Order) effects.
 531:	 * We dont use sfq_dequeue()/sfq_enqueue() because we dont want to change
 532:	 * counters.
 533:	 */
 534:	static void sfq_rehash(struct Qdisc *sch)
 535:	{
 536:		struct sfq_sched_data *q = qdisc_priv(sch);
 537:		struct sk_buff *skb;
 538:		int i;
 539:		struct sfq_slot *slot;
 540:		struct sk_buff_head list;
 541:		int dropped = 0;
 542:		unsigned int drop_len = 0;
 543:	
 544:		__skb_queue_head_init(&list);
 545:	
 546:		for (i = 0; i < q->maxflows; i++) {
 547:			slot = &q->slots[i];
 548:			if (!slot->qlen)
 549:				continue;
 550:			while (slot->qlen) {
 551:				skb = slot_dequeue_head(slot);
 552:				sfq_dec(q, i);
 553:				__skb_queue_tail(&list, skb);
 554:			}
 555:			WRITE_ONCE(slot->backlog, 0);
 556:			red_set_vars(&slot->vars);
 557:			WRITE_ONCE(q->ht[slot->hash], SFQ_EMPTY_SLOT);
 558:		}
 559:		q->tail = NULL;
 560:	
 561:		while ((skb = __skb_dequeue(&list)) != NULL) {
 562:			unsigned int hash = sfq_hash(q, skb);
 563:			sfq_index x = q->ht[hash];
 564:	
 565:			slot = &q->slots[x];
 566:			if (x == SFQ_EMPTY_SLOT) {
 567:				x = q->dep[0].next; /* get a free slot */
 568:				if (x >= SFQ_MAX_FLOWS) {
 569:	drop:
 570:					qdisc_qstats_backlog_dec(sch, skb);
 571:					drop_len += qdisc_pkt_len(skb);
 572:					kfree_skb(skb);
 573:					dropped++;
 574:					continue;
 575:				}
 576:				WRITE_ONCE(q->ht[hash], x);
 577:				slot = &q->slots[x];
 578:				slot->hash = hash;
 579:			}
 580:			if (slot->qlen >= q->maxdepth)
 581:				goto drop;
 582:			slot_queue_add(slot, skb);
 583:			if (q->red_parms)
 584:				slot->vars.qavg = red_calc_qavg(q->red_parms,
 585:								&slot->vars,
 586:								slot->backlog);
 587:			WRITE_ONCE(slot->backlog, slot->backlog + qdisc_pkt_len(skb));
 588:			sfq_inc(q, x);
 589:			if (slot->qlen == 1) {		/* The flow is new */
 590:				if (q->tail == NULL) {	/* It is the first flow */
 591:					slot->next = x;
 592:				} else {
 593:					slot->next = q->tail->next;
 594:					q->tail->next = x;
 595:				}
 596:				q->tail = slot;
 597:				WRITE_ONCE(slot->allot, q->quantum);
 598:			}
 599:		}
 600:		WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
 601:		qdisc_tree_reduce_backlog(sch, dropped, drop_len);
 602:	}
 SourceFile:net/sched/sch_sfq.c]

867/4 2026/08/15 19:41 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 26887
							output: 27
							thoughts: 139
						

Thoughts:
**My Thought Process Regarding `qdisc_tree_reduce_backlog` and `sfq_rehash`**

I've been examining the interaction between `sfq_rehash` and `qdisc_tree_reduce_backlog`, and I've noticed something rather interesting. It appears that `qdisc_tree_reduce_backlog` is being invoked unconditionally at the conclusion of `sfq_rehash`, irrespective of whether any packets have actually been dropped. This is evident from the code snippet provided:

```c
	WRITE_ONCE(sch->q.qlen, sch->q.qlen - dropped);
	qdisc_tree_reduce_backlog(sch, dropped, drop_len);
```

Now, my immediate concern here is the potential for unnecessary work. My understanding of `qdisc_tree_reduce_backlog` is that it's designed to manage the backlog of the queuing discipline, and critically, it contains an internal check. Specifically, it's supposed to bail out early if both `n` (the number of dropped packets) and `len` (the total length of dropped packets) are zero.

To confirm this behavior and fully understand the implications, I've decided to delve into the implementation of `qdisc_tree_reduce_backlog` itself, which I'll be looking up in `net/sched/sch_api.c`. I want to verify that this zero-check logic is indeed present and functioning as expected, and then I'll be able to more definitively assess whether this unconditional call in `sfq_rehash` presents a real performance bottleneck or a subtle correctness issue.


868/4 2026/08/15 19:41 tool codesearch-definition-source
0m Args:
map[Name:qdisc_tree_reduce_backlog]

Results:
map[SourceCode: 776:	void qdisc_tree_reduce_backlog(struct Qdisc *sch, int n, int len)
 777:	{
 778:		const struct Qdisc_class_ops *cops;
 779:		unsigned long cl;
 780:		u32 parentid;
 781:		bool notify;
 782:		int drops;
 783:	
 784:		drops = max_t(int, n, 0);
 785:		rcu_read_lock();
 786:		while ((parentid = sch->parent)) {
 787:			if (parentid == TC_H_ROOT)
 788:				break;
 789:	
 790:			if (sch->flags & TCQ_F_NOPARENT)
 791:				break;
 792:			/* Notify parent qdisc only if child qdisc becomes empty. */
 793:			notify = !sch->q.qlen;
 794:			/* TODO: perform the search on a per txq basis */
 795:			sch = qdisc_lookup_rcu(qdisc_dev(sch), TC_H_MAJ(parentid));
 796:			if (sch == NULL) {
 797:				WARN_ON_ONCE(parentid != TC_H_ROOT);
 798:				break;
 799:			}
 800:			cops = sch->ops->cl_ops;
 801:			if (notify && cops->qlen_notify) {
 802:				/* Note that qlen_notify must be idempotent as it may get called
 803:				 * multiple times.
 804:				 */
 805:				cl = cops->find(sch, parentid);
 806:				cops->qlen_notify(sch, cl);
 807:			}
 808:			WRITE_ONCE(sch->q.qlen, sch->q.qlen - n);
 809:			qstats_backlog_sub(sch, len);
 810:			__qdisc_qstats_drop(sch, drops);
 811:		}
 812:		rcu_read_unlock();
 813:	}
 SourceFile:net/sched/sch_api.c]

869/4 2026/08/15 19:41 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 27659
							output: 23
							thoughts: 143
						

Thoughts:
**My Realization about `qdisc_tree_reduce_backlog` and `sfq_rehash`**

Okay, so I've just had a rather significant realization regarding the interaction between `qdisc_tree_reduce_backlog` and `sfq_rehash` in the context of packet queuing. My thought process went something like this:

Initially, I was focused on `qdisc_tree_reduce_backlog` and its internal logic. I noticed, with a jolt of understanding, that this function *absolutely does not* perform an initial check for `n == 0 && len == 0`. This is a crucial detail because it means the function will proceed to traverse upwards through the queuing discipline tree regardless of whether there are any packets to process or not.

This observation immediately led me to a very exciting conclusion: if `qdisc_tree_reduce_backlog` walks the tree unconditionally, it implies that we don't actually *need* to enqueue any packets for this particular behavior to manifest. The traversal itself is the key.

But then, a secondary thought immediately surfaced, which I initially saw as a potential complication. I realized that even if we *don't* enqueue any packets, the `sfq_rehash` function will still invoke `qdisc_tree_reduce_backlog(sch, 0, 0)`. This is where the magic, or rather, the unintended consequence, comes into play.

Because `qdisc_tree_reduce_backlog` is designed to walk up the tree without pre-checks, this call from `sfq_rehash` will still cause it to ascend the hierarchy. As it moves up, it will attempt to look up its parent node. If, at any point in this upward traversal, the parent node is found to be "unhashed" – a state that signifies it's not properly registered or managed within the tree structure – this will trigger the warning I've been looking for.

This is genuinely fantastic! The implication is that we can achieve the desired outcome – triggering the warning – without the necessity of actually sending any packets through the system. The structure of the tree traversal and the `sfq_rehash` call provide a direct path to this observation.

Now, to solidify this, my next step is to meticulously verify the behavior of `sfq_perturbation`. I need to ensure my understanding aligns with its expected operation and any related state management.


870/4 2026/08/15 19:41 tool codesearch-definition-source
0m Args:
map[Name:sfq_perturbation]

Results:
map[SourceCode: 604:	static void sfq_perturbation(struct timer_list *t)
 605:	{
 606:		struct sfq_sched_data *q = timer_container_of(q, t, perturb_timer);
 607:		struct Qdisc *sch = q->sch;
 608:		spinlock_t *root_lock;
 609:		siphash_key_t nkey;
 610:		int period;
 611:	
 612:		get_random_bytes(&nkey, sizeof(nkey));
 613:		rcu_read_lock();
 614:		root_lock = qdisc_lock(qdisc_root_sleeping(sch));
 615:		spin_lock(root_lock);
 616:		q->perturbation = nkey;
 617:		if (!q->filter_list && q->tail)
 618:			sfq_rehash(sch);
 619:		spin_unlock(root_lock);
 620:	
 621:		/* q->perturb_period can change under us from
 622:		 * sfq_change() and sfq_destroy().
 623:		 */
 624:		period = READ_ONCE(q->perturb_period);
 625:		if (period)
 626:			mod_timer(&q->perturb_timer, jiffies + period);
 627:		rcu_read_unlock();
 628:	}
 SourceFile:net/sched/sch_sfq.c]

871/4 2026/08/15 19:41 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 28235
							output: 24
							thoughts: 1210
						

Thoughts:
**My Thought Process on the `sfq_rehash` Issue**

Okay, I've been wrestling with this `sfq_rehash` call, specifically the condition `!q->filter_list && q->tail`. My initial thought was, "Hold on a second, this `sfq_rehash` only happens if there's something in `q->tail`!" And `q->tail` being non-NULL means there's at least one packet in the queue. So, it seems I *must* enqueue at least one packet for this to trigger.

Then I got a bit confused because `q->tail` is actually the tail of the *active flows list*, not necessarily the packet queue itself. But if there are no packets, then there are no active flows, and `q->tail` would indeed be NULL. So, yes, the core requirement is to have packets enqueued.

Now, let's dig into `sfq_enqueue`. When I enqueue a packet, `q->tail` *will* become non-NULL. So, the path forward is: enqueue a packet and, crucially, *don't* dequeue it immediately.

How do I achieve this "don't dequeue" state? My first idea was to just not run the qdisc at all – maybe by having the interface down. But if the interface is UP, the qdisc *will* run, and the packet will be dequeued and sent.

I considered using a dummy interface and trying to halt its queue, or perhaps continuously enqueueing packets in a loop so there's always something there. If I enqueue continuously, `q->tail` will stay non-NULL, which is what I need.

Looking back at that reproducer I was working with:
```c
        for (int p = 0; p < 16; p++) {
            setsockopt(sock, SOL_SOCKET, &p, sizeof(p));
            for (int i = 0; i < 50; i++) {
                udp->source = htons(i);
                sendto(sock, pkt, sizeof(pkt), 0, (struct sockaddr *)&sall, sizeof(sall));
            }
        }
```
This code sends packets, yes. But the problem is, if the dummy interface is configured to immediately dequeue them, `q->tail` might become NULL *before* the timer fires and `sfq_rehash` is supposed to be called.

How can I force packets to *stay* in the queue? I thought about interface states like `IFF_UP` but not `IFF_RUNNING`, but dummy interfaces don't behave that way.

Then I considered `tc` manipulations. Could I use `tc qdisc add dev dummy0 root netem delay 10s`? No, that wouldn't work because the root needs to be `prio` for this scenario, and `prio` itself dequeues from its bands.

If the root is `prio` and the child is `sfq`, the `prio` qdisc will pull packets from `sfq` as fast as the device can transmit them. And for a dummy device, that's practically instantaneous! The queue would be emptied almost immediately, leading back to the problem: `q->tail` becomes NULL, and `sfq_rehash` is *never* called. This is precisely why that previous reproducer likely failed.

So, the fundamental question becomes: how do I stop the dummy device from dequeuing packets? I briefly thought about `ip link set dev dummy0 carrier off`, but dummy interfaces don't support that.

What if I just *don't* bring the interface UP? But then `sendto` will fail with `ENETDOWN`.

My mind then jumped to `veth` pairs. If I use a `veth` pair and don't read from the other end, the packets would go to the peer's receive queue. However, the `veth` send qdisc doesn't typically hold packets if the other end is up; it bypasses it.

And then it hit me: a `tap` interface! If I use a `tap` interface and *don't* read from its file descriptor, the tap device's internal socket buffer will eventually fill up. Once that buffer is full, the `tun_net_xmit` function (or similar) will return `NETDEV_TX_BUSY` or, more importantly, it will *stop the queue*. This is the key! When the queue is stopped, packets will naturally remain in the `sfq` qdisc, and `q->tail` will stay non-NULL.

So, the strategy is to use a `tun` device, bring it UP, and then send packets to it. Because I won't be reading from the `tun` device's FD, its internal buffers will fill, the queue will stop, and the packets will be held by the `sfq` qdisc, ensuring `q->tail` remains set. I even started thinking about the C code needed to set up a `tun` device:
```c
#include <linux/if_tun.h>

int tun_fd = open("/dev/net/tun", O_RDWR);
struct ifreq ifr = {0};
ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
strcpy(ifr.ifr_name, "tun0");
ioctl(tun_fd, TUNSETIFF, (void *)&ifr);
```
And then bring `tun0` up. This seems like the most robust way to ensure packets are enqueued and stay there, allowing `sfq_rehash` to be properly tested. I briefly considered using `tc qdisc add dev dummy0 root prio` and then a `tun` device, but the direct `tun` device approach seems cleaner for this specific goal.


872/4 2026/08/15 19:41 tool codesearch-definition-source
0m Args:
map[Name:tun_net_xmit]

Results:
map[SourceCode:1012:	/* Net device start xmit */
1013:	static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev)
1014:	{
1015:		enum skb_drop_reason drop_reason = SKB_DROP_REASON_NOT_SPECIFIED;
1016:		struct tun_struct *tun = netdev_priv(dev);
1017:		int txq = skb->queue_mapping;
1018:		struct netdev_queue *queue;
1019:		struct tun_file *tfile;
1020:		int len = skb->len;
1021:		int ret;
1022:	
1023:		rcu_read_lock();
1024:		tfile = rcu_dereference(tun->tfiles[txq]);
1025:	
1026:		/* Drop packet if interface is not attached */
1027:		if (!tfile) {
1028:			drop_reason = SKB_DROP_REASON_DEV_READY;
1029:			goto drop;
1030:		}
1031:	
1032:		if (!rcu_dereference(tun->steering_prog))
1033:			tun_automq_xmit(tun, skb);
1034:	
1035:		netif_info(tun, tx_queued, tun->dev, "%s %d\n", __func__, skb->len);
1036:	
1037:		/* Drop if the filter does not like it.
1038:		 * This is a noop if the filter is disabled.
1039:		 * Filter can be enabled only for the TAP devices. */
1040:		if (!check_filter(&tun->txflt, skb)) {
1041:			drop_reason = SKB_DROP_REASON_TAP_TXFILTER;
1042:			goto drop;
1043:		}
1044:	
1045:		if (tfile->socket.sk->sk_filter) {
1046:			drop_reason = sk_filter_reason(tfile->socket.sk, skb);
1047:			if (drop_reason)
1048:				goto drop;
1049:		}
1050:	
1051:		len = run_ebpf_filter(tun, skb, len);
1052:		if (len == 0) {
1053:			drop_reason = SKB_DROP_REASON_TAP_FILTER;
1054:			goto drop;
1055:		}
1056:	
1057:		if (pskb_trim(skb, len)) {
1058:			drop_reason = SKB_DROP_REASON_NOMEM;
1059:			goto drop;
1060:		}
1061:	
1062:		if (unlikely(skb_orphan_frags_rx(skb, GFP_ATOMIC))) {
1063:			drop_reason = SKB_DROP_REASON_SKB_UCOPY_FAULT;
1064:			goto drop;
1065:		}
1066:	
1067:		skb_tx_timestamp(skb);
1068:	
1069:		/* Orphan the skb - required as we might hang on to it
1070:		 * for indefinite time.
1071:		 */
1072:		skb_orphan(skb);
1073:	
1074:		nf_reset_ct(skb);
1075:	
1076:		queue = netdev_get_tx_queue(dev, txq);
1077:	
1078:		spin_lock(&tfile->tx_ring.producer_lock);
1079:		ret = __ptr_ring_produce(&tfile->tx_ring, skb);
1080:		if (!qdisc_txq_has_no_queue(queue) &&
1081:		    __ptr_ring_check_produce(&tfile->tx_ring) == -ENOSPC) {
1082:			netif_tx_stop_queue(queue);
1083:			/* Paired with smp_mb() in __tun_wake_queue() */
1084:			smp_mb__after_atomic();
1085:			if (!__ptr_ring_check_produce(&tfile->tx_ring))
1086:				netif_tx_wake_queue(queue);
1087:		}
1088:		spin_unlock(&tfile->tx_ring.producer_lock);
1089:	
1090:		if (ret) {
1091:			/* This should be a rare case if a qdisc is present, but
1092:			 * can happen due to lltx.
1093:			 * Since skb_tx_timestamp(), skb_orphan(),
1094:			 * run_ebpf_filter() and pskb_trim() could have tinkered
1095:			 * with the SKB, returning NETDEV_TX_BUSY is unsafe and
1096:			 * we must drop instead.
1097:			 */
1098:			drop_reason = SKB_DROP_REASON_FULL_RING;
1099:			goto drop;
1100:		}
1101:	
1102:		/* dev->lltx requires to do our own update of trans_start */
1103:		txq_trans_cond_update(queue);
1104:	
1105:		/* Notify and wake up reader process */
1106:		if (tfile->flags & TUN_FASYNC)
1107:			kill_fasync(&tfile->fasync, SIGIO, POLL_IN);
1108:		tfile->socket.sk->sk_data_ready(tfile->socket.sk);
1109:	
1110:		rcu_read_unlock();
1111:		return NETDEV_TX_OK;
1112:	
1113:	drop:
1114:		dev_core_stats_tx_dropped_inc(dev);
1115:		skb_tx_error(skb);
1116:		kfree_skb_reason(skb, drop_reason);
1117:		rcu_read_unlock();
1118:		return NET_XMIT_DROP;
1119:	}
 SourceFile:drivers/net/tun.c]

873/4 2026/08/15 19:41 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 31192
							output: 22
							thoughts: 1511
						

Thoughts:
**My Thought Process on Exploiting a Kernel Race Condition**

Okay, so I've been digging into this kernel behavior, and I think I've got a handle on how to trigger a specific race condition. It all starts with how the kernel handles packet transmission and queue management, particularly with the `tun` device and the `sfq` qdisc.

My initial realization was about the `tx_ring` buffer on the `tun` device. If this buffer fills up, specifically when `__ptr_ring_check_produce(&tfile->tx_ring)` returns `-ENOSPC`, the network interface queue (`netif_tx_stop_queue(queue)`) gets stopped. This means any subsequent packets attempting to be sent will get backed up.

Now, I know the `sfq` qdisc has a default limit of 127 packets. So, if I can send enough packets to fill the `tx_ring` *and then some*, those overflow packets will land in the `sfq` queue. My first estimate was needing more than `tx_ring` + 1 packets. I then refined this by recalling that `TUN_READQ_SIZE` (which defines the `tx_ring` size) is typically 500. So, sending around 1000 packets would fill the `tun` device's buffer, stop its queue, and then the next 127 packets would occupy the `sfq` qdisc. This seemed like a solid setup for what I wanted to achieve.

To set this up, I needed a way to create a `tun` device. I drafted a simple C function for that:

```c
int create_tun(const char *name) {
    int fd = open("/dev/net/tun", O_RDWR);
    if (fd < 0) return -1;
    struct ifreq ifr = {0};
    ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, TUNSETIFF, (void *)&ifr) < 0) {
        close(fd);
        return -1;
    }
    return fd; // keep it open!
}
```

A crucial point here is that the file descriptor (`fd`) for the `tun` device needs to stay open. If it's closed, the interface might go down or packets could start dropping, which would disrupt my test. So, I planned to keep this `fd` open within the thread that's performing the race.

My initial race loop strategy looked something like this:
1.  Create the `tun` interface and keep its `fd` open.
2.  Bring the interface up (`ifconfig <name> up` or similar).
3.  Add a `prio` root qdisc.
4.  Add an `sfq` child qdisc to the `prio` qdisc, with `perturb_period = 1` (this is key for the timer-based race).
5.  Send approximately 1000 packets to trigger the `tx_ring` fill and queue stop, ensuring some packets land in `sfq`.
6.  Sleep for about 1 second to allow the `sfq` timer to potentially fire.
7.  Destroy the `prio` root qdisc.
8.  Wait a small amount to give the timer a chance to execute its action if it was scheduled.
9.  Repeat the whole process.

However, I quickly realized a potential flaw. When I destroy the root `prio` qdisc, it also destroys its child `sfq` qdisc. This destruction process itself cancels out any pending timer actions from `sfq`. So, the goal is to have the `sfq` timer fire *precisely* during the destruction of the root qdisc.

The timing here is tricky. The `sfq` timer is set for `jiffies + HZ`. Since `HZ` can vary, a simple 1-second sleep might not be exact. To increase the likelihood of hitting the race, I initially thought about creating a deeply nested tree of `prio` qdiscs, as seen in some existing reproducer code. This approach, with a tree of depth 6 and multiple leaves, would generate a large number of timers firing around the same time, thus widening the race window.

But then I re-examined the `sfq_perturbation` logic. I saw that `sfq_rehash` is only called if `q->tail` is not NULL, meaning there *must* be packets in the `sfq` queue for `sfq_rehash` to be triggered. This means simply having many `sfq` qdiscs isn't enough; I need to ensure packets are actually sent to them. With a `prio` qdisc, packets are typically classified based on `skb->priority`. To hit all those deeply nested `sfq` qdiscs would require carefully crafting `skb->priority` values, which is complex.

This led me to a more elegant solution. Instead of making *all* the child qdiscs `sfq` and trying to hit them all, I can focus on the *destruction time* of the qdisc tree. The kernel's `__qdisc_destroy` function recursively calls `qdisc_put` on its children. If I have a `prio` root qdisc, and its children are also `prio` qdiscs that are themselves deep trees (but *without* `sfq` qdiscs at their leaves), then the destruction of these deep child trees will take a significant amount of time.

My refined strategy became:
1.  Create a `prio` root qdisc.
2.  Make its children `prio` qdiscs.
3.  Make *these* child `prio` qdiscs have very deep trees of their own `prio` qdiscs.
4.  Only at the very deepest leaves of this structure, attach a single `sfq` qdisc with `perturb_period = 1`.

When I initiate the destruction of the root `prio` qdisc, it will first start destroying its children. These children, being deep `prio` trees, will take a considerable amount of time to destroy. During this protracted destruction of the children, the root qdisc is already being unhashed. Crucially, the `sfq` qdisc (which is a child of one of these deep trees) will eventually start its destruction. It's during this window – the time it takes to destroy the deep `prio` sub-trees – that I can inject packets to fill the `tx_ring`, stop the `tun` queue, and have packets land in the `sfq` queue. This extended destruction time of the sub-trees artificially inflates the race window, making it much more likely for the `sfq` timer to fire *after* the root qdisc has been unhashed but *before* the `sfq` itself is fully destroyed.

This is where the previous reproducer's use of `generate_classes` to build a deep tree comes into play, not to hit many `sfq` qdiscs, but to significantly slow down the destruction process of intermediate `prio` qdiscs. This gives the `sfq` timer the necessary window to trigger its action amidst the chaos of qdisc destruction.

I then went back to trace `prio_destroy` to confirm this understanding of how the recursion and children's destruction impacts the overall timing.


874/4 2026/08/15 19:42 tool codesearch-definition-source
0m Args:
map[Name:prio_destroy]

Results:
map[SourceCode: 164:	static void
 165:	prio_destroy(struct Qdisc *sch)
 166:	{
 167:		int prio;
 168:		struct prio_sched_data *q = qdisc_priv(sch);
 169:	
 170:		tcf_block_put(q->block);
 171:		prio_offload(sch, NULL);
 172:		for (prio = 0; prio < q->bands; prio++)
 173:			qdisc_put(q->queues[prio]);
 174:	}
 SourceFile:net/sched/sch_prio.c]

875/4 2026/08/15 19:42 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 32907
							output: 23
							thoughts: 138
						

Thoughts:
**My Thought Process Regarding `prio_destroy` and Potential Resource Leakage**

Ah, yes! My initial understanding is that `prio_destroy` operates by destroying the child queues within the `prio` qdisc in a specific order: band 0, then band 1, then band 2, and so on. This sequential destruction order immediately brings a specific scenario to mind.

If I were to strategically place the `sfq` qdisc into band 2 – which, being the highest numbered band, would be the *last* one to be destroyed by `prio_destroy` – and then populate bands 0 and 1 with substantial, indeed, *huge* trees of `prio` qdiscs, this could lead to a very interesting situation. The destruction of these large `prio` structures in bands 0 and 1 would, by necessity, take a considerable amount of time, given their complexity and size.

Now, here's the critical part that's currently occupying my thoughts: During this prolonged destruction process of bands 0 and 1, what happens to the parent, or root, `prio` qdisc itself? My understanding is that `__qdisc_destroy` is the overarching function that orchestrates the destruction of a qdisc. Crucially, and this is where my attention is fixed, `__qdisc_destroy` *unhashes* the qdisc it's about to destroy *before* it even calls the qdisc's specific `ops->destroy` function.

This means that even as the destruction of the child `prio` qdiscs in bands 0 and 1 is ongoing, the root `prio` qdisc, which is the one being directly managed by `__qdisc_destroy`, would have already been unhashed. I need to delve deeper into the specifics of `__qdisc_destroy` to confirm the exact sequence of operations and the implications of this unhashing occurring prior to the actual `ops->destroy` call, especially in the context of the delayed destruction of its children.


876/4 2026/08/15 19:42 tool codesearch-definition-source
0m Args:
map[Name:__qdisc_destroy]

Results:
map[SourceCode:1106:	static void __qdisc_destroy(struct Qdisc *qdisc)
1107:	{
1108:		const struct Qdisc_ops  *ops = qdisc->ops;
1109:		struct net_device *dev = qdisc_dev(qdisc);
1110:	
1111:	#ifdef CONFIG_NET_SCHED
1112:		qdisc_hash_del(qdisc);
1113:	
1114:		qdisc_put_stab(rtnl_dereference(qdisc->stab));
1115:	#endif
1116:		gen_kill_estimator(&qdisc->rate_est);
1117:	
1118:		qdisc_reset(qdisc);
1119:	
1120:	
1121:		if (ops->destroy)
1122:			ops->destroy(qdisc);
1123:	
1124:		qdisc_lock_uninit(qdisc, ops);
1125:		bpf_module_put(ops, ops->owner);
1126:		netdev_put(dev, &qdisc->dev_tracker);
1127:	
1128:		trace_qdisc_destroy(qdisc);
1129:	
1130:		call_rcu(&qdisc->rcu, qdisc_free_cb);
1131:	}
 SourceFile:net/sched/sch_generic.c]

877/4 2026/08/15 19:42 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 33454
							output: 22
							thoughts: 909
						

Thoughts:
**My Thoughts on Exploiting a Race Condition in the Kernel's Traffic Control**

Ah, this is fascinating! I've just stumbled upon a rather elegant way to widen a race window within the kernel's traffic control subsystem. My initial observation is that `qdisc_hash_del(qdisc)` is executed *before* `ops->destroy(qdisc)`. This seems innocuous at first, but when the root is a `prio` qdisc, this means the `prio` qdisc is unhashed before its destruction begins.

Then, `prio_destroy` gets called. Its job is to iterate through each band and call `qdisc_put` on the child qdisc. The critical part here is that if, for instance, `q->queues[0]` is a deeply nested tree of qdiscs, `qdisc_put` will recursively destroy that entire structure. This recursive destruction, as I've measured, can take a significant amount of time – potentially tens of milliseconds, even up to 100ms if I construct the tree sufficiently large.

Now, here's where the race truly opens up. While the `prio` qdisc is busily destroying its extensive child structure in band 0, imagine a timer for an `sfq` qdisc in another band – say, band 2 – fires. This timer triggers `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. This function needs to walk *up* the qdisc tree to the root. It attempts to do so by calling `qdisc_lookup_rcu(dev, TC_H_MAJ(parentid))`.

But here's the rub: since the root `prio` qdisc was already unhashed during its destruction phase, `qdisc_lookup_rcu` will return `NULL`. This unexpected `NULL` return will then trigger a `WARN_ON_ONCE`, indicating that the race condition has indeed occurred.

This is precisely the kind of scenario I look for to widen race windows. We don't need to precisely time our actions down to microseconds. By constructing a deep `prio` tree, for example, a depth of 6 could mean $3^6 = 729$ qdiscs, and depth 7 would mean 2187 qdiscs. The time taken to create and then destroy such a structure can easily be in the range of 10-50ms. This provides a substantial window for the `sfq` timer to fire and trigger the problematic `qdisc_lookup_rcu` call.

To orchestrate this, I'd envision a setup like this:

*   **Root `prio` qdisc** (handle 1:)
    *   **Band 0** (class 1:1): A deep, nested tree of `prio` qdiscs.
    *   **Band 1** (class 1:2): Another `prio` qdisc, perhaps less deep.
    *   **Band 2** (class 1:3): An `sfq` qdisc.

Now, the question is, how do I ensure packets land in Band 2 to trigger the `sfq` timer? By default, `prio` uses `skb->priority` to map to bands via its `priomap`. The default `priomap` sends `skb->priority` 0 to band 1. However, if I send packets with `skb->priority = 1`, this maps to `priomap[1 & TC_PRIO_MAX] = 2` (based on the default `priomap`), thus directing them to Band 2, directly to the `sfq` qdisc.

I can achieve this by setting the `SO_PRIORITY` socket option to 1. For UDP packets, this `sk->sk_priority` is then propagated to `skb->priority`. Once `skb->priority` is 1, the `prio_classify` function within `sch_prio.c` will correctly route the packet to the `sfq` in Band 2. So, by simply sending packets with `SO_PRIORITY = 1`, I can ensure the timer for the `sfq` qdisc fires, and the race is on. This is a rather robust strategy for widening that race window.


878/4 2026/08/15 19:42 tool codesearch-definition-source
0m Args:
map[Name:prio_classify]

Results:
map[SourceCode:  30:	static struct Qdisc *
  31:	prio_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
  32:	{
  33:		struct prio_sched_data *q = qdisc_priv(sch);
  34:		u32 band = skb->priority;
  35:		struct tcf_result res;
  36:		struct tcf_proto *fl;
  37:		int err;
  38:	
  39:		*qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
  40:		if (TC_H_MAJ(skb->priority) != sch->handle) {
  41:			fl = rcu_dereference_bh(q->filter_list);
  42:			err = tcf_classify(skb, NULL, fl, &res, false);
  43:	#ifdef CONFIG_NET_CLS_ACT
  44:			switch (err) {
  45:			case TC_ACT_STOLEN:
  46:			case TC_ACT_QUEUED:
  47:			case TC_ACT_TRAP:
  48:				*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
  49:				fallthrough;
  50:			case TC_ACT_SHOT:
  51:				return NULL;
  52:			}
  53:	#endif
  54:			if (!fl || err < 0) {
  55:				if (TC_H_MAJ(band))
  56:					band = 0;
  57:				return q->queues[q->prio2band[band & TC_PRIO_MAX]];
  58:			}
  59:			band = res.classid;
  60:		}
  61:		band = TC_H_MIN(band) - 1;
  62:		if (band >= q->bands)
  63:			return q->queues[q->prio2band[0]];
  64:	
  65:		return q->queues[band];
  66:	}
 SourceFile:net/sched/sch_prio.c]

879/4 2026/08/15 19:42 llm repro-generator
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 34953
							output: 21
							thoughts: 4860
						

Thoughts:
**The Core of the Race Condition: Deterministic Chaos in TC and SFQ**

I've been deeply engrossed in understanding a rather elegant, deterministic race condition that manifests within the Linux traffic control (TC) subsystem, specifically involving the `prio` and `sfq` qdiscs. My thought process has been focused on dissecting the interaction between packet priority, class mapping, and the timing of qdisc destruction and SFQ rehashing.

My initial realization stemmed from observing the behavior of the `prio` qdisc when a packet's priority doesn't match the qdisc's handle, and there are no specific filters in place. I noticed this block of code:

```c
	if (TC_H_MAJ(band))
		band = 0;
	return q->queues[q->prio2band[band & TC_PRIO_MAX]];
```

This immediately piqued my interest because it implies a direct mapping from packet priority to a specific queue. I started to trace an example: if `skb->priority` is 1, and the default `priomap` is used, this mapping results in `band = 1` being translated to `prio2band[1]`, which resolves to `2`. This means a packet with priority 1 is directed to queue (or band) 2. This is precisely the behavior I was aiming for.

Based on this understanding, I began to outline the ideal setup to trigger the race:

1.  **Establish the Interface:** First, I need a `tun` interface. This serves as the ingress point for our test traffic.
2.  **Root Qdisc:** The root of our traffic control hierarchy will be a `prio` qdisc with a handle of `1:0` and the default `priomap`.
3.  **Band 0 Configuration:** This band (class `1:1`) will be a deep tree of `prio` qdiscs.
4.  **Band 1 Configuration:** Similar to Band 0, this band (class `1:2`) will also be a deep tree of `prio` qdiscs.
5.  **Band 2 Configuration:** This is where `sfq` comes in. Band 2 (class `1:3`) will use an `sfq` qdisc with a handle of `4:0` and a `perturb_period` set to `1` second. This short perturbation period is crucial for the timing aspect of the race.
6.  **Packet Injection:** I'll then inject 1000 packets with `SO_PRIORITY = 1` into the `tun` interface. The initial 500 packets will fill the `tun` transmit ring, causing the `tun` driver to stop the queue (`netif_tx_stop_queue`). The subsequent packets will queue up in the `sfq` qdisc (up to its limit, typically 127).
7.  **The Critical Timing Window:** After the packets have settled, I'll introduce a small delay, roughly 0.95 seconds. This is *just* before the `sfq`'s 1-second `perturb_period` timer is due to fire.
8.  **The Race Trigger:** The next step is to delete the root qdisc (`RTM_DELQDISC`). This action initiates the destruction of the qdisc tree. The `__qdisc_destroy` function will unhash the root `prio` qdisc (`1:0`). Then, `prio_destroy` will call `qdisc_put` on Band 0 (class `1:1`). Because Band 0 is a deep tree of `prio` qdiscs, its destruction will take a noticeable amount of time – I'm estimating around 50ms.
9.  **The Collision:** During this 50ms qdisc destruction window, the 1-second timer for the `sfq` qdisc fires. The `sfq_perturbation` function is called, which in turn calls `sfq_rehash`. `sfq_rehash` then calls `qdisc_tree_reduce_backlog`. This function attempts to look up the root `prio` qdisc (`1:0`) in the qdisc tree. Since `__qdisc_destroy` has already unhashed it, the lookup will fail and return `NULL`. This is where the `WARN_ON_ONCE` triggers, indicating the race condition.

This sequence of events creates a beautiful, deterministic race: the deletion of the qdisc tree and the `sfq`'s periodic rehash attempt collide.

**Generating the Deep Tree with Efficiency in Mind**

The next logical step was to devise a way to programmatically generate this deep qdisc tree. My initial approach for `generate_deep_prio` looked like this:

```c
int handle_counter = 10;

void generate_deep_prio(int fd, int ifindex, uint32_t parent, int level) {
    if (level == 0) return;
    
    uint32_t my_handle = TC_H_MAKE(handle_counter << 16, 0);
    handle_counter++;
    
    struct tc_prio_qopt opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    add_qdisc(fd, ifindex, parent, my_handle, "prio", &opt, sizeof(opt));
    
    for (int i = 1; i <= 3; i++) {
        generate_deep_prio(fd, ifindex, TC_H_MAKE(my_handle, i), level - 1);
    }
}
```

However, I quickly realized that creating thousands of qdiscs individually via Netlink syscalls would be too slow and might itself introduce timing variations. If `level = 5`, that's already 364 qdiscs per band. For both Band 0 and Band 1, that's 728 qdiscs, potentially taking milliseconds to destroy. Increasing `level` to 6 or 7 would create thousands more.

To overcome this, I decided to leverage Netlink batching. This allows me to send multiple Netlink messages in a single `send()` call, significantly reducing the overhead of individual syscalls. I've developed a `nl_batch` structure and associated helper functions (`batch_init`, `batch_begin`, `addattr_l`, `addattr_str`, `batch_end`) to manage this.

The `batch_add_prio` and `batch_add_sfq` functions are designed to populate this batch. The core idea is to create a large buffer and append all qdisc creation requests to it. I've also refined the batch sending mechanism. Instead of just sending and forgetting, I've implemented `batch_send_and_wait`. This function adds `NLM_F_ACK` to the last message in a batch and then waits for the corresponding acknowledgment, ensuring that the kernel has processed the entire batch before proceeding. This is critical for predictable timing.

The generation of the deep tree now uses this batching mechanism:

```c
void generate_deep_prio(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) return;
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    batch_add_prio(b, ifindex, parent, my_handle);
    // Send in chunks to avoid overwhelming the socket buffer
    if (b->offset > 512 * 1024) { 
        batch_send_and_wait(nl_fd, b);
    }
    
    for (int i = 1; i <= 3; i++) {
        generate_deep_prio(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
}
```

The main setup sequence now reflects this:

```c
    // Root prio
    batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
    
    int handle_counter = 2;
    // Band 0: deep tree (level 6 for ~2200 qdiscs)
    generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 1), 6, &handle_counter); 
    // Band 1: deep tree (level 6)
    generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 2), 6, &handle_counter);
    // Band 2: sfq
    batch_add_sfq(&b, ifindex, TC_H_MAKE(1 << 16, 3), TC_H_MAKE(handle_counter << 16, 0));
    
    batch_send_and_wait(nl_fd, &b); // Send the final batch
```

I've also refined the supporting functions like `create_tun` and added `bring_up` to ensure the `tun` interface is operational. For packet injection, I've settled on using `AF_PACKET` sockets bound to the `tun` interface index. This is because `packet_snd` directly calls `dev_queue_xmit`, meaning packets sent this way will correctly traverse the qdisc hierarchy. This setup allows me to precisely control the packet priority using `SO_PRIORITY` and then observe its path through the qdiscs and the eventual race condition. The `sfq` configuration with `perturb_period = 1` is key to ensuring its rehash operation occurs just as the qdisc tree is being torn down.


880/4 2026/08/15 19:43 tool codesearch-definition-source
0m Args:
map[Name:packet_snd]

Results:
map[SourceCode:2945:	static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
2946:	{
2947:		struct sock *sk = sock->sk;
2948:		DECLARE_SOCKADDR(struct sockaddr_ll *, saddr, msg->msg_name);
2949:		struct sk_buff *skb;
2950:		struct net_device *dev;
2951:		__be16 proto;
2952:		unsigned char *addr = NULL;
2953:		int err, reserve = 0;
2954:		struct sockcm_cookie sockc;
2955:		struct virtio_net_hdr vnet_hdr = { 0 };
2956:		int offset = 0;
2957:		struct packet_sock *po = pkt_sk(sk);
2958:		int vnet_hdr_sz = READ_ONCE(po->vnet_hdr_sz);
2959:		int hlen, tlen, linear;
2960:		int extra_len = 0;
2961:	
2962:		/*
2963:		 *	Get and verify the address.
2964:		 */
2965:	
2966:		if (likely(saddr == NULL)) {
2967:			dev	= packet_cached_dev_get(po);
2968:			proto	= READ_ONCE(po->num);
2969:		} else {
2970:			err = -EINVAL;
2971:			if (msg->msg_namelen < sizeof(struct sockaddr_ll))
2972:				goto out;
2973:			if (msg->msg_namelen < (saddr->sll_halen + offsetof(struct sockaddr_ll, sll_addr)))
2974:				goto out;
2975:			proto	= saddr->sll_protocol;
2976:			dev = dev_get_by_index(sock_net(sk), saddr->sll_ifindex);
2977:			if (sock->type == SOCK_DGRAM) {
2978:				if (dev && msg->msg_namelen < dev->addr_len +
2979:					   offsetof(struct sockaddr_ll, sll_addr))
2980:					goto out_unlock;
2981:				addr = saddr->sll_addr;
2982:			}
2983:		}
2984:	
2985:		err = -ENXIO;
2986:		if (unlikely(dev == NULL))
2987:			goto out_unlock;
2988:		err = -ENETDOWN;
2989:		if (unlikely(!(dev->flags & IFF_UP)))
2990:			goto out_unlock;
2991:	
2992:		sockcm_init(&sockc, sk);
2993:		if (msg->msg_controllen) {
2994:			err = sock_cmsg_send(sk, msg, &sockc);
2995:			if (unlikely(err))
2996:				goto out_unlock;
2997:		}
2998:	
2999:		if (sock->type == SOCK_RAW)
3000:			reserve = dev->hard_header_len;
3001:		if (vnet_hdr_sz) {
3002:			err = packet_snd_vnet_parse(msg, &len, &vnet_hdr, vnet_hdr_sz);
3003:			if (err)
3004:				goto out_unlock;
3005:		}
3006:	
3007:		if (unlikely(sock_flag(sk, SOCK_NOFCS))) {
3008:			if (!netif_supports_nofcs(dev)) {
3009:				err = -EPROTONOSUPPORT;
3010:				goto out_unlock;
3011:			}
3012:			extra_len = 4; /* We're doing our own CRC */
3013:		}
3014:	
3015:		err = -EMSGSIZE;
3016:		if (!vnet_hdr.gso_type &&
3017:		    (len > dev->mtu + reserve + VLAN_HLEN + extra_len))
3018:			goto out_unlock;
3019:	
3020:		err = -ENOBUFS;
3021:		hlen = LL_RESERVED_SPACE(dev);
3022:		tlen = dev->needed_tailroom;
3023:		linear = __virtio16_to_cpu(vio_le(), vnet_hdr.hdr_len);
3024:		linear = max(linear, min_t(int, len, dev->hard_header_len));
3025:		skb = packet_alloc_skb(sk, hlen + tlen, hlen, len, linear,
3026:				       msg->msg_flags & MSG_DONTWAIT, &err);
3027:		if (skb == NULL)
3028:			goto out_unlock;
3029:	
3030:		skb_reset_network_header(skb);
3031:	
3032:		err = -EINVAL;
3033:		if (sock->type == SOCK_DGRAM) {
3034:			offset = dev_hard_header(skb, dev, ntohs(proto), addr, NULL, len);
3035:			if (unlikely(offset < 0))
3036:				goto out_free;
3037:		} else if (reserve) {
3038:			skb_reserve(skb, -reserve);
3039:			if (len < reserve + sizeof(struct ipv6hdr) &&
3040:			    dev->min_header_len != dev->hard_header_len)
3041:				skb_reset_network_header(skb);
3042:		}
3043:	
3044:		/* Returns -EFAULT on error */
3045:		err = skb_copy_datagram_from_iter(skb, offset, &msg->msg_iter, len);
3046:		if (err)
3047:			goto out_free;
3048:	
3049:		if ((sock->type == SOCK_RAW &&
3050:		     !dev_validate_header(dev, skb->data, len)) || !skb->len) {
3051:			err = -EINVAL;
3052:			goto out_free;
3053:		}
3054:	
3055:		skb_setup_tx_timestamp(skb, &sockc);
3056:	
3057:		if (!vnet_hdr.gso_type && (len > dev->mtu + reserve + extra_len) &&
3058:		    !packet_extra_vlan_len_allowed(dev, skb)) {
3059:			err = -EMSGSIZE;
3060:			goto out_free;
3061:		}
3062:	
3063:		skb->protocol = proto;
3064:		skb->dev = dev;
3065:		skb->priority = sockc.priority;
3066:		skb->mark = sockc.mark;
3067:		skb_set_delivery_type_by_clockid(skb, sockc.transmit_time, sk->sk_clockid);
3068:	
3069:		if (unlikely(extra_len == 4))
3070:			skb->no_fcs = 1;
3071:	
3072:		packet_parse_headers(skb, sock);
3073:	
3074:		if (vnet_hdr_sz) {
3075:			err = virtio_net_hdr_to_skb(skb, &vnet_hdr, vio_le());
3076:			if (err)
3077:				goto out_free;
3078:			len += vnet_hdr_sz;
3079:			virtio_net_hdr_set_proto(skb, &vnet_hdr);
3080:		}
3081:	
3082:		err = packet_xmit(po, skb);
3083:	
3084:		if (unlikely(err != 0)) {
3085:			if (err > 0)
3086:				err = net_xmit_errno(err);
3087:			if (err)
3088:				goto out_unlock;
3089:		}
3090:	
3091:		dev_put(dev);
3092:	
3093:		return len;
3094:	
3095:	out_free:
3096:		kfree_skb(skb);
3097:	out_unlock:
3098:		dev_put(dev);
3099:	out:
3100:		return err;
3101:	}
 SourceFile:net/packet/af_packet.c]

881/4 2026/08/15 19:43 llm repro-generator
1m Model:
gemini-3.1-pro-preview

Tokens:
							input: 42284
							output: 4534
							thoughts: 11550
						

Thoughts:
# **My Thoughts on the Race Condition in `AF_PACKET` and TC Qdiscs**

This is a fascinating race condition involving `AF_PACKET` sockets and the Linux Traffic Control (TC) qdisc subsystem. The core idea is to exploit a timing window between when a TC qdisc tree is deleted and when a kernel timer, associated with an `sfq` (Stochastic Fairness Queuing) qdisc, fires. If we can trigger the timer's processing *after* the qdisc tree has been partially or fully dismantled but *before* the timer's callback has been fully processed, we can cause a kernel `WARN_ON_ONCE`.

Here's my thought process, tracing the logic and the subtle timing:

1.  **Understanding `AF_PACKET` and Priority:**
    *   I start by confirming how `AF_PACKET` handles packet priority. I see that `packet_snd` sets `skb->priority` from `sk->sk_priority`. This value then propagates through `packet_xmit` and eventually to `dev_queue_xmit`. This tells me that `AF_PACKET` sockets, with their `SO_PRIORITY` option set, are indeed suitable for influencing packet queuing at the device driver level.

2.  **The `racer` Thread's Setup:**
    *   The `racer` thread is designed to create multiple `tun` interfaces. Each thread gets its own `tun` device (e.g., `tun0`, `tun1`, etc.).
    *   It then sets up a `NETLINK_ROUTE` socket (`nl_fd`) to manipulate TC qdiscs and an `AF_PACKET` socket (`sock`) configured for raw Ethernet frames (`ETH_P_IP`) on the newly created `tun` interface.
    *   Crucially, the `AF_PACKET` socket's `SO_PRIORITY` is set to `1`. This is the priority value that will be associated with the packets sent from this socket.

3.  **Building the TC Qdisc Tree:**
    *   The core of the setup is the construction of a hierarchical TC qdisc tree. The `racer` thread aims to build a deep tree.
    *   It starts by deleting any existing root qdisc (`del_qdisc_root`). This ensures a clean slate.
    *   Then, it adds a root `prio` qdisc. The `prio` qdisc distributes traffic to different bands based on priority.
    *   The key is `generate_deep_prio`. This function recursively adds `prio` qdiscs. With `level = 7`, it creates a tree of depth 7 for each of the three bands (`1`, `2`, `3`) under the root `prio` qdisc.
    *   The calculation of qdiscs per band is important: a depth of 7 results in $1 + 3 + 3^2 + ... + 3^6 = 1093$ qdiscs per band. With three bands (plus the root `prio` and the final `sfq`), the total number of qdiscs becomes quite large, around 2186 per interface. This is significant because destroying this many qdiscs takes time.
    *   Finally, an `sfq` qdisc is added as the leaf node under band 3. The `sfq` qdisc is configured with `perturb_period = 1`, meaning it's set up to rehash its flow table every second. This timer is what we'll exploit.

4.  **The Race Condition Trigger:**
    *   After the qdisc tree is built (`batch_send_and_wait`), the thread sends 1000 UDP packets using the `AF_PACKET` socket. These packets are destined for the `tun` interface.
    *   The `tun` device's transmit ring has a limited size (around 500 packets). The `sfq` qdisc also has a limit (e.g., 127 packets). So, sending 1000 packets will fill the `tun` ring and populate the `sfq` qdisc with packets, ensuring that `sfq` has something to process.
    *   Now comes the critical timing:
        *   The `sfq` qdisc, upon creation, arms a timer (`sfq_perturbation`) to fire in `HZ` ticks (approximately 1 second).
        *   The thread then enters a `usleep` period. This is where the race is engineered. The goal is to have the `del_qdisc_root` call execute *while* the kernel's timer for `sfq` is active.
        *   After the sleep, `del_qdisc_root` is called. This function sends a `RTM_DELQDISC` netlink message for the root qdisc. The kernel processes this message, which involves recursively destroying the qdisc tree.
        *   When `__qdisc_destroy` is called for the root `prio` qdisc, it calls `prio_destroy`. `prio_destroy` then recursively calls `qdisc_put` on its child qdiscs. This process continues down the tree.
        *   **The critical moment:** If, during the destruction of the qdisc tree (which takes tens of milliseconds for such a large tree), the kernel's `sfq` timer fires, it will attempt to execute `sfq_perturbation`.
        *   `sfq_perturbation` calls `sfq_rehash`, which in turn calls `qdisc_tree_reduce_backlog`. This function walks up the qdisc hierarchy to the root.
        *   However, if `del_qdisc_root` has already started and has begun unhashing the root `prio` qdisc, `qdisc_lookup_rcu` called by `qdisc_tree_reduce_backlog` might return `NULL` for the root qdisc.
        *   This situation (`qdisc_lookup_rcu` returning `NULL` for an active qdisc during traversal) triggers a `WARN_ON_ONCE(qdisc_lookup_rcu(tree, q->dev->ifindex) == NULL);` within `qdisc_tree_reduce_backlog`. This is the bug we're triggering.
        *   Furthermore, if the `sfq` qdisc is destroyed *before* its timer callback is fully processed, the timer will be canceled, and any ongoing work will be aborted. The race condition is to ensure the timer fires *while* the root qdisc is being deleted, but *before* the `sfq` qdisc itself is fully gone from the kernel's perspective.

5.  **Refining the Timing:**
    *   Initially, I might think a fixed sleep like `950000` us (0.95 seconds) is enough. However, I realize the timer fires *exactly* at 1.0 seconds (or very close to it). If `del_qdisc_root` takes, say, 20ms and finishes at 970ms, the timer firing at 1000ms will fire *after* the qdisc is gone, and its timer will be canceled *before* it even fires. This won't trigger the race.
    *   To guarantee the timer fires *during* `del_qdisc_root`, we need `del_qdisc_root` to be executing when the timer fires. If `del_qdisc_root` takes ~20ms, starting it around 990ms means it will run from 990ms to 1010ms. This perfectly overlaps with the 1000ms timer event.
    *   A robust way to hit this window is to introduce variability or sweep through the potential timing. By using `iter * 2000` in the sleep, for example, `sleep_us` ranges from `960000` to `1018000` over 30 iterations. This effectively sweeps through all possible offsets and guarantees that, across all threads and iterations, the perfect timing will eventually occur.

6.  **Robustness and Multiple Threads:**
    *   Running this in multiple threads (e.g., 4 threads) increases the chances of hitting the race condition faster. Even if one thread's timing is slightly off, another might get it right.
    *   The `unshare(CLONE_NEWUSER | CLONE_NEWNET)` is important for isolating the network environment, preventing interference with the host system.

In essence, the strategy is to build a complex, time-consuming TC structure, send traffic that triggers a kernel timer, and then aggressively delete the structure. The race is won by making the deletion process overlap with the timer's expected firing time, catching the kernel in an inconsistent state where it believes a qdisc exists for traversal but it's already being removed. The `AF_PACKET` socket's priority is simply the mechanism that gets our traffic into the kernel's queuing system where it can interact with these qdiscs.


882/4 2026/08/15 19:45 tool set-results
0m Args:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_tun.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int type, const char *str) {
    addattr_l(n, type, str, strlen(str) + 1);
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

int batch_send_and_wait(int fd, struct nl_batch *b) {
    if (b->offset == 0) return 0;
    
    struct nlmsghdr *last_n = NULL;
    int offset = 0;
    while (offset < b->offset) {
        last_n = (struct nlmsghdr *)(b->buf + offset);
        offset += NLMSG_ALIGN(last_n->nlmsg_len);
    }
    if (last_n) {
        last_n->nlmsg_flags |= NLM_F_ACK;
    }
    
    uint32_t expected_seq = last_n ? last_n->nlmsg_seq : 0;
    
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    b->offset = 0;
    
    if (!last_n) return 0;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return err->error;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

void batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt opt = {0};
    opt.perturb_period = 1; // 1 second
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void generate_deep_prio(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) return;
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 512 * 1024) {
        batch_send_and_wait(nl_fd, b);
    }
    
    for (int i = 1; i <= 3; i++) {
        generate_deep_prio(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .n.nlmsg_seq = 999999,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_tun(const char *name) {
    int fd = open("/dev/net/tun", O_RDWR);
    if (fd < 0) {
        perror("open /dev/net/tun");
        return -1;
    }
    struct ifreq ifr = {0};
    ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, TUNSETIFF, (void *)&ifr) < 0) {
        perror("TUNSETIFF");
        close(fd);
        return -1;
    }
    return fd;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr = {0};
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "tun%ld", id);
    
    int tun_fd = create_tun(ifname);
    if (tun_fd < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    int sndbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
    if (sock < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_protocol = htons(ETH_P_IP);
    sall.sll_ifindex = ifindex;
    
    int prio = 1;
    if (setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
        return NULL;
    }
    
    char pkt[64] = {0};
    struct iphdr *ip = (struct iphdr *)pkt;
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(40);
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x0A000001);
    ip->daddr = htonl(0x0A000002);
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 30; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        
        int handle_counter = 2;
        // Depth 7 creates 1093 qdiscs per band. Total ~2200 qdiscs.
        // This artificially widens the destruction race window to tens of milliseconds.
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 1), 7, &handle_counter);
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 2), 7, &handle_counter);
        batch_add_sfq(&b, ifindex, TC_H_MAKE(1 << 16, 3), TC_H_MAKE(handle_counter << 16, 0));
        
        if (batch_send_and_wait(nl_fd, &b) < 0) {
            printf("[-] batch_send_and_wait failed\n");
        }
        
        // Send packets to fill tun ring and leave some in sfq
        for (int i = 0; i < 1000; i++) {
            sendto(sock, pkt, 40, MSG_DONTWAIT, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // Sweep the sleep time to deterministically hit the race window
        // 960ms to 1018ms
        long sleep_us = 960000 + (iter * 2000);
        usleep(sleep_us);
        
        // Delete root qdisc
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit for timer to fire
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    close(tun_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[4];
    for (long i = 0; i < 4; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 4; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

Results:
map[IsProbe:false RawCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_tun.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int type, const char *str) {
    addattr_l(n, type, str, strlen(str) + 1);
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

int batch_send_and_wait(int fd, struct nl_batch *b) {
    if (b->offset == 0) return 0;
    
    struct nlmsghdr *last_n = NULL;
    int offset = 0;
    while (offset < b->offset) {
        last_n = (struct nlmsghdr *)(b->buf + offset);
        offset += NLMSG_ALIGN(last_n->nlmsg_len);
    }
    if (last_n) {
        last_n->nlmsg_flags |= NLM_F_ACK;
    }
    
    uint32_t expected_seq = last_n ? last_n->nlmsg_seq : 0;
    
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    b->offset = 0;
    
    if (!last_n) return 0;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return err->error;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

void batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt opt = {0};
    opt.perturb_period = 1; // 1 second
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void generate_deep_prio(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) return;
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 512 * 1024) {
        batch_send_and_wait(nl_fd, b);
    }
    
    for (int i = 1; i <= 3; i++) {
        generate_deep_prio(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .n.nlmsg_seq = 999999,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_tun(const char *name) {
    int fd = open("/dev/net/tun", O_RDWR);
    if (fd < 0) {
        perror("open /dev/net/tun");
        return -1;
    }
    struct ifreq ifr = {0};
    ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, TUNSETIFF, (void *)&ifr) < 0) {
        perror("TUNSETIFF");
        close(fd);
        return -1;
    }
    return fd;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr = {0};
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "tun%ld", id);
    
    int tun_fd = create_tun(ifname);
    if (tun_fd < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    int sndbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
    if (sock < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_protocol = htons(ETH_P_IP);
    sall.sll_ifindex = ifindex;
    
    int prio = 1;
    if (setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
        return NULL;
    }
    
    char pkt[64] = {0};
    struct iphdr *ip = (struct iphdr *)pkt;
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(40);
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x0A000001);
    ip->daddr = htonl(0x0A000002);
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 30; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        
        int handle_counter = 2;
        // Depth 7 creates 1093 qdiscs per band. Total ~2200 qdiscs.
        // This artificially widens the destruction race window to tens of milliseconds.
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 1), 7, &handle_counter);
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 2), 7, &handle_counter);
        batch_add_sfq(&b, ifindex, TC_H_MAKE(1 << 16, 3), TC_H_MAKE(handle_counter << 16, 0));
        
        if (batch_send_and_wait(nl_fd, &b) < 0) {
            printf("[-] batch_send_and_wait failed\n");
        }
        
        // Send packets to fill tun ring and leave some in sfq
        for (int i = 0; i < 1000; i++) {
            sendto(sock, pkt, 40, MSG_DONTWAIT, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // Sweep the sleep time to deterministically hit the race window
        // 960ms to 1018ms
        long sleep_us = 960000 + (iter * 2000);
        usleep(sleep_us);
        
        // Delete root qdisc
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit for timer to fire
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    close(tun_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[4];
    for (long i = 0; i < 4; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 4; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

883/3 2026/08/15 19:45 loop
0m
884/4 2026/08/15 19:45 iteration 0
0m
885/5 2026/08/15 19:45 action merge-repro-c
0m Results:
map[CurrentCandidateReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_tun.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int type, const char *str) {
    addattr_l(n, type, str, strlen(str) + 1);
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

int batch_send_and_wait(int fd, struct nl_batch *b) {
    if (b->offset == 0) return 0;
    
    struct nlmsghdr *last_n = NULL;
    int offset = 0;
    while (offset < b->offset) {
        last_n = (struct nlmsghdr *)(b->buf + offset);
        offset += NLMSG_ALIGN(last_n->nlmsg_len);
    }
    if (last_n) {
        last_n->nlmsg_flags |= NLM_F_ACK;
    }
    
    uint32_t expected_seq = last_n ? last_n->nlmsg_seq : 0;
    
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    b->offset = 0;
    
    if (!last_n) return 0;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return err->error;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

void batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt opt = {0};
    opt.perturb_period = 1; // 1 second
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void generate_deep_prio(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) return;
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 512 * 1024) {
        batch_send_and_wait(nl_fd, b);
    }
    
    for (int i = 1; i <= 3; i++) {
        generate_deep_prio(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .n.nlmsg_seq = 999999,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_tun(const char *name) {
    int fd = open("/dev/net/tun", O_RDWR);
    if (fd < 0) {
        perror("open /dev/net/tun");
        return -1;
    }
    struct ifreq ifr = {0};
    ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, TUNSETIFF, (void *)&ifr) < 0) {
        perror("TUNSETIFF");
        close(fd);
        return -1;
    }
    return fd;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr = {0};
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "tun%ld", id);
    
    int tun_fd = create_tun(ifname);
    if (tun_fd < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    int sndbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
    if (sock < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_protocol = htons(ETH_P_IP);
    sall.sll_ifindex = ifindex;
    
    int prio = 1;
    if (setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
        return NULL;
    }
    
    char pkt[64] = {0};
    struct iphdr *ip = (struct iphdr *)pkt;
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(40);
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x0A000001);
    ip->daddr = htonl(0x0A000002);
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 30; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        
        int handle_counter = 2;
        // Depth 7 creates 1093 qdiscs per band. Total ~2200 qdiscs.
        // This artificially widens the destruction race window to tens of milliseconds.
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 1), 7, &handle_counter);
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 2), 7, &handle_counter);
        batch_add_sfq(&b, ifindex, TC_H_MAKE(1 << 16, 3), TC_H_MAKE(handle_counter << 16, 0));
        
        if (batch_send_and_wait(nl_fd, &b) < 0) {
            printf("[-] batch_send_and_wait failed\n");
        }
        
        // Send packets to fill tun ring and leave some in sfq
        for (int i = 0; i < 1000; i++) {
            sendto(sock, pkt, 40, MSG_DONTWAIT, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // Sweep the sleep time to deterministically hit the race window
        // 960ms to 1018ms
        long sleep_us = 960000 + (iter * 2000);
        usleep(sleep_us);
        
        // Delete root qdisc
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit for timer to fire
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    close(tun_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[4];
    for (long i = 0; i < 4; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 4; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

886/5 2026/08/15 19:45 action compile-c-prog
0m Results:
map[CompilerError: FormattedReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_tun.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int type, const char *str) {
    addattr_l(n, type, str, strlen(str) + 1);
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

int batch_send_and_wait(int fd, struct nl_batch *b) {
    if (b->offset == 0) return 0;
    
    struct nlmsghdr *last_n = NULL;
    int offset = 0;
    while (offset < b->offset) {
        last_n = (struct nlmsghdr *)(b->buf + offset);
        offset += NLMSG_ALIGN(last_n->nlmsg_len);
    }
    if (last_n) {
        last_n->nlmsg_flags |= NLM_F_ACK;
    }
    
    uint32_t expected_seq = last_n ? last_n->nlmsg_seq : 0;
    
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    b->offset = 0;
    
    if (!last_n) return 0;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return err->error;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

void batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt opt = {0};
    opt.perturb_period = 1; // 1 second
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void generate_deep_prio(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) return;
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 512 * 1024) {
        batch_send_and_wait(nl_fd, b);
    }
    
    for (int i = 1; i <= 3; i++) {
        generate_deep_prio(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .n.nlmsg_seq = 999999,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_tun(const char *name) {
    int fd = open("/dev/net/tun", O_RDWR);
    if (fd < 0) {
        perror("open /dev/net/tun");
        return -1;
    }
    struct ifreq ifr = {0};
    ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, TUNSETIFF, (void *)&ifr) < 0) {
        perror("TUNSETIFF");
        close(fd);
        return -1;
    }
    return fd;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr = {0};
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "tun%ld", id);
    
    int tun_fd = create_tun(ifname);
    if (tun_fd < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    int sndbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
    if (sock < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_protocol = htons(ETH_P_IP);
    sall.sll_ifindex = ifindex;
    
    int prio = 1;
    if (setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
        return NULL;
    }
    
    char pkt[64] = {0};
    struct iphdr *ip = (struct iphdr *)pkt;
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(40);
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x0A000001);
    ip->daddr = htonl(0x0A000002);
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 30; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        
        int handle_counter = 2;
        // Depth 7 creates 1093 qdiscs per band. Total ~2200 qdiscs.
        // This artificially widens the destruction race window to tens of milliseconds.
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 1), 7, &handle_counter);
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 2), 7, &handle_counter);
        batch_add_sfq(&b, ifindex, TC_H_MAKE(1 << 16, 3), TC_H_MAKE(handle_counter << 16, 0));
        
        if (batch_send_and_wait(nl_fd, &b) < 0) {
            printf("[-] batch_send_and_wait failed\n");
        }
        
        // Send packets to fill tun ring and leave some in sfq
        for (int i = 0; i < 1000; i++) {
            sendto(sock, pkt, 40, MSG_DONTWAIT, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // Sweep the sleep time to deterministically hit the race window
        // 960ms to 1018ms
        long sleep_us = 960000 + (iter * 2000);
        usleep(sleep_us);
        
        // Delete root qdisc
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit for timer to fire
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    close(tun_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[4];
    for (long i = 0; i < 4; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 4; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
]

887/5 2026/08/15 19:45 action If
0m Args:
map[CompilerError:]

888/3 2026/08/15 19:45 action run-c-repro
3m Results:
map[CandidateBugTitle:WARNING in qdisc_tree_reduce_backlog CandidateCrashReport:------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: syz-executor144/5844
Modules linked in:
CPU: 1 UID: 0 PID: 5844 Comm: syz-executor144 Not tainted syzkaller #1 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 7f b4 87 f8 e9 38 ff ff ff e8 55 a7 1a f8 eb 17 e8 4e a7 1a f8 eb 10 e8 47 a7 1a f8 90 <0f> 0b 90 eb 05 e8 3c a7 1a f8 e8 57 1e 07 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a08a08 EFLAGS: 00010246
RAX: ffffffff89aa8c29 RBX: 000000000000007f RCX: ffff888112af0000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff89aa886b R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8eb63e60 R12: ffffc90000a08b80
R13: 0000000000010003 R14: 000000000000007f R15: ffff8881145f7800
FS:  00007fd4fa9f86c0(0000) GS:ffff8882e86f1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055621761df30 CR3: 0000000114674000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2028/0x2280 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x225/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:prio_reset+0x33/0x130 net/sched/sch_prio.c:136
Code: 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f0 e4 0c f8 4c 8d bb 80 02 00 00 4d 89 fe 49 c1 ee 03 43 0f b6 04 2e <84> c0 0f 85 c8 00 00 00 41 8b 2f 31 ff 89 ee e8 09 e9 0c f8 85 ed
RSP: 0018:ffffc90003aa7068 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff8881ec8de000 RCX: ffff888112af0000
RDX: 0000000000000000 RSI: ffffffff8c321360 RDI: ffff8881ec8de000
RBP: ffff8881ec867a01 R08: ffffffff9060b637 R09: 1ffffffff20c16c6
R10: dffffc0000000000 R11: ffffffff89b84e60 R12: 0000000000000001
R13: dffffc0000000000 R14: 1ffff1103d91bc50 R15: ffff8881ec8de280
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 __qdisc_destroy+0x120/0x470 net/sched/sch_generic.c:1118
 notify_and_destroy net/sched/sch_api.c:1066 [inline]
 qdisc_graft+0x1083/0x1600 net/sched/sch_api.c:1163
 __tc_get_qdisc net/sched/sch_api.c:1532 [inline]
 tc_get_qdisc+0xc0a/0x1250 net/sched/sch_api.c:1560
 rtnetlink_rcv_msg+0x7b9/0xc00 net/core/rtnetlink.c:7085
 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
 __sock_sendmsg net/socket.c:790 [inline]
 __sys_sendto+0x408/0x5a0 net/socket.c:2252
 __do_sys_sendto net/socket.c:2259 [inline]
 __se_sys_sendto net/socket.c:2255 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2255
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd4fc25c47e
Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
 </TASK>
----------------
Code disassembly (best guess):
   0:	41 55                	push   %r13
   2:	41 54                	push   %r12
   4:	53                   	push   %rbx
   5:	48 89 fb             	mov    %rdi,%rbx
   8:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
   f:	fc ff df
  12:	e8 f0 e4 0c f8       	call   0xf80ce507
  17:	4c 8d bb 80 02 00 00 	lea    0x280(%rbx),%r15
  1e:	4d 89 fe             	mov    %r15,%r14
  21:	49 c1 ee 03          	shr    $0x3,%r14
  25:	43 0f b6 04 2e       	movzbl (%r14,%r13,1),%eax
* 2a:	84 c0                	test   %al,%al <-- trapping instruction
  2c:	0f 85 c8 00 00 00    	jne    0xfa
  32:	41 8b 2f             	mov    (%r15),%ebp
  35:	31 ff                	xor    %edi,%edi
  37:	89 ee                	mov    %ebp,%esi
  39:	e8 09 e9 0c f8       	call   0xf80ce947
  3e:	85 ed                	test   %ebp,%ebp
 CandidateReproduced:true ConsoleOutput:[   69.427672][   T33] kauditd_printk_skb: 10 callbacks suppressed
[   69.427682][   T33] audit: type=1400 audit(1786823186.278:201): avc:  denied  { transition } for  pid=5823 comm="sshd-session" path="/bin/sh" dev="sda1" ino=90 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.435933][   T33] audit: type=1400 audit(1786823186.288:202): avc:  denied  { noatsecure } for  pid=5823 comm="sshd-session" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.442101][   T33] audit: type=1400 audit(1786823186.288:203): avc:  denied  { rlimitinh } for  pid=5823 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   69.447612][   T33] audit: type=1400 audit(1786823186.288:204): avc:  denied  { siginh } for  pid=5823 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   71.971684][ T1376] ieee802154 phy0 wpan0: encryption failed: -22
[   71.974289][ T1376] ieee802154 phy1 wpan1: encryption failed: -22
Warning: Permanently added '[localhost]:55559' (ED25519) to the list of known hosts.
[   72.236945][   T33] audit: type=1400 audit(1786823189.088:205): avc:  denied  { create } for  pid=5838 comm="syz-executor144" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   72.243867][   T33] audit: type=1400 audit(1786823189.088:206): avc:  denied  { net_raw } for  pid=5838 comm="syz-executor144" capability=13  scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=cap_userns permissive=1
[   72.251221][   T33] audit: type=1400 audit(1786823189.088:207): avc:  denied  { setopt } for  pid=5838 comm="syz-executor144" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   72.257566][   T33] audit: type=1400 audit(1786823189.088:208): avc:  denied  { create } for  pid=5838 comm="syz-executor144" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   72.264591][   T33] audit: type=1400 audit(1786823189.088:209): avc:  denied  { setopt } for  pid=5838 comm="syz-executor144" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   72.423909][   T33] audit: type=1400 audit(1786823189.278:210): avc:  denied  { write } for  pid=5845 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.030689][   T33] kauditd_printk_skb: 9 callbacks suppressed
[   75.030699][   T33] audit: type=1400 audit(1786823191.888:220): avc:  denied  { write } for  pid=5875 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.084752][   T33] audit: type=1400 audit(1786823191.938:221): avc:  denied  { write } for  pid=5878 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.266731][   T33] audit: type=1400 audit(1786823192.118:222): avc:  denied  { write } for  pid=5881 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.311004][   T33] audit: type=1400 audit(1786823192.168:223): avc:  denied  { write } for  pid=5884 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.399819][   T33] audit: type=1400 audit(1786823192.248:224): avc:  denied  { write } for  pid=5887 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   75.456349][   T33] audit: type=1400 audit(1786823192.308:225): avc:  denied  { write } for  pid=5890 comm="rm" name="hook-state" dev="tmpfs" ino=1794 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1
[   76.547322][   T33] audit: type=1400 audit(1786823193.398:226): avc:  denied  { write } for  pid=5838 comm="syz-executor144" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1
[   82.209909][    T9] cfg80211: failed to load regulatory.db
[  129.809199][    C1] ------------[ cut here ]------------
[  129.811166][    C1] parentid != TC_H_ROOT
[  129.811175][    C1] WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0, CPU#1: syz-executor144/5844
[  129.815943][    C1] Modules linked in:
[  129.817442][    C1] CPU: 1 UID: 0 PID: 5844 Comm: syz-executor144 Not tainted syzkaller #1 PREEMPT(full) 
[  129.821216][    C1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  129.824401][    C1] RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  129.826434][    C1] Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 7f b4 87 f8 e9 38 ff ff ff e8 55 a7 1a f8 eb 17 e8 4e a7 1a f8 eb 10 e8 47 a7 1a f8 90 <0f> 0b 90 eb 05 e8 3c a7 1a f8 e8 57 1e 07 02 89 c3 31 ff 89 c6 e8
[  129.832497][    C1] RSP: 0018:ffffc90000a08a08 EFLAGS: 00010246
[  129.834456][    C1] RAX: ffffffff89aa8c29 RBX: 000000000000007f RCX: ffff888112af0000
[  129.836969][    C1] RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
[  129.839508][    C1] RBP: dffffc0000000000 R08: ffffffff89aa886b R09: 0000000000000000
[  129.841980][    C1] R10: 0000000000000000 R11: ffffffff8eb63e60 R12: ffffc90000a08b80
[  129.844442][    C1] R13: 0000000000010003 R14: 000000000000007f R15: ffff8881145f7800
[  129.846927][    C1] FS:  00007fd4fa9f86c0(0000) GS:ffff8882e86f1000(0000) knlGS:0000000000000000
[  129.849776][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  129.851824][    C1] CR2: 000055621761df30 CR3: 0000000114674000 CR4: 0000000000352ef0
[  129.854291][    C1] Call Trace:
[  129.855477][    C1]  <IRQ>
[  129.856430][    C1]  ? qdisc_tree_reduce_backlog+0x3b/0x4c0
[  129.858252][    C1]  sfq_perturbation+0x2028/0x2280
[  129.859954][    C1]  ? sfq_perturbation+0x10c/0x2280
[  129.861591][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  129.863361][    C1]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  129.865084][    C1]  call_timer_fn+0x192/0x5e0
[  129.866571][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  129.868272][    C1]  ? call_timer_fn+0xd4/0x5e0
[  129.869850][    C1]  ? __pfx_call_timer_fn+0x10/0x10
[  129.871471][    C1]  ? _raw_spin_unlock_irq+0x23/0x50
[  129.873133][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  129.874846][    C1]  __run_timer_base+0x652/0x8b0
[  129.876425][    C1]  ? lock_acquire+0x106/0x350
[  129.877945][    C1]  ? __pfx___run_timer_base+0x10/0x10
[  129.879708][    C1]  run_timer_softirq+0x103/0x170
[  129.881296][    C1]  handle_softirqs+0x225/0x840
[  129.882984][    C1]  ? __irq_exit_rcu+0xca/0x220
[  129.884536][    C1]  __irq_exit_rcu+0xca/0x220
[  129.886023][    C1]  irq_exit_rcu+0x9/0x30
[  129.887401][    C1]  sysvec_apic_timer_interrupt+0xa6/0xc0
[  129.889421][    C1]  </IRQ>
[  129.890392][    C1]  <TASK>
[  129.891345][    C1]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  129.893248][    C1] RIP: 0010:prio_reset+0x33/0x130
[  129.894860][    C1] Code: 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f0 e4 0c f8 4c 8d bb 80 02 00 00 4d 89 fe 49 c1 ee 03 43 0f b6 04 2e <84> c0 0f 85 c8 00 00 00 41 8b 2f 31 ff 89 ee e8 09 e9 0c f8 85 ed
[  129.900972][    C1] RSP: 0018:ffffc90003aa7068 EFLAGS: 00000a06
[  129.902902][    C1] RAX: 0000000000000000 RBX: ffff8881ec8de000 RCX: ffff888112af0000
[  129.905379][    C1] RDX: 0000000000000000 RSI: ffffffff8c321360 RDI: ffff8881ec8de000
[  129.907895][    C1] RBP: ffff8881ec867a01 R08: ffffffff9060b637 R09: 1ffffffff20c16c6
[  129.910456][    C1] R10: dffffc0000000000 R11: ffffffff89b84e60 R12: 0000000000000001
[  129.912951][    C1] R13: dffffc0000000000 R14: 1ffff1103d91bc50 R15: ffff8881ec8de280
[  129.915452][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.917098][    C1]  ? prio_reset+0x20/0x130
[  129.918628][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.920179][    C1]  qdisc_reset+0xff/0x570
[  129.921701][    C1]  prio_reset+0x9b/0x130
[  129.923080][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.924852][    C1]  qdisc_reset+0xff/0x570
[  129.926261][    C1]  prio_reset+0x9b/0x130
[  129.927720][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.929366][    C1]  qdisc_reset+0xff/0x570
[  129.930765][    C1]  prio_reset+0x9b/0x130
[  129.932141][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.933715][    C1]  qdisc_reset+0xff/0x570
[  129.935099][    C1]  prio_reset+0x9b/0x130
[  129.936470][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.938043][    C1]  qdisc_reset+0xff/0x570
[  129.939491][    C1]  prio_reset+0x9b/0x130
[  129.940980][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.942629][    C1]  qdisc_reset+0xff/0x570
[  129.944026][    C1]  prio_reset+0x9b/0x130
[  129.945381][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.946961][    C1]  qdisc_reset+0xff/0x570
[  129.948338][    C1]  prio_reset+0x9b/0x130
[  129.949771][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.951323][    C1]  qdisc_reset+0xff/0x570
[  129.952716][    C1]  __qdisc_destroy+0x120/0x470
[  129.954234][    C1]  qdisc_graft+0x1083/0x1600
[  129.955708][    C1]  ? __pfx_qdisc_graft+0x10/0x10
[  129.957300][    C1]  ? __mutex_trylock_common+0x15f/0x270
[  129.959107][    C1]  tc_get_qdisc+0xc0a/0x1250
[  129.960587][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  129.962184][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  129.963767][    C1]  rtnetlink_rcv_msg+0x7b9/0xc00
[  129.965327][    C1]  ? rtnetlink_rcv_msg+0x1c9/0xc00
[  129.966997][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  129.968768][    C1]  ? __lock_acquire+0x683/0x2cf0
[  129.970350][    C1]  netlink_rcv_skb+0x226/0x4a0
[  129.971863][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  129.973697][    C1]  ? __pfx_netlink_rcv_skb+0x10/0x10
[  129.975404][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  129.977104][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  129.978872][    C1]  netlink_unicast+0x7bb/0x940
[  129.980591][    C1]  netlink_sendmsg+0x813/0xb40
[  129.982139][    C1]  ? __pfx_selinux_socket_sendmsg+0x10/0x10
[  129.984133][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  129.985821][    C1]  ? tomoyo_socket_sendmsg_permission+0x1e0/0x300
[  129.987892][    C1]  ? __fget_files+0x3a2/0x420
[  129.989495][    C1]  ? __fget_files+0x2a/0x420
[  129.990975][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  129.992624][    C1]  sock_sendmsg_nosec+0x13a/0x180
[  129.994209][    C1]  __sys_sendto+0x408/0x5a0
[  129.995757][    C1]  ? __pfx___sys_sendto+0x10/0x10
[  129.997418][    C1]  ? irqentry_exit+0x218/0x8f0
[  129.999058][    C1]  ? rcu_is_watching+0x15/0xb0
[  130.000602][    C1]  __x64_sys_sendto+0xde/0x100
[  130.002141][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.004042][    C1]  do_syscall_64+0x174/0x580
[  130.005496][    C1]  ? clear_bhb_loop+0x40/0x90
[  130.007027][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.008967][    C1] RIP: 0033:0x7fd4fc25c47e
[  130.010385][    C1] Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
[  130.016399][    C1] RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  130.019099][    C1] RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
[  130.021577][    C1] RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
[  130.024063][    C1] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  130.026550][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
[  130.029112][    C1] R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
[  130.031586][    C1]  </TASK>
[  130.032572][    C1] Kernel panic - not syncing: kernel: panic_on_warn set ...
[  130.034851][    C1] CPU: 1 UID: 0 PID: 5844 Comm: syz-executor144 Not tainted syzkaller #1 PREEMPT(full) 
[  130.037848][    C1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  130.040986][    C1] Call Trace:
[  130.042058][    C1]  <IRQ>
[  130.042993][    C1]  vpanic+0x56c/0xa60
[  130.044946][    C1]  ? __pfx__printk+0x10/0x10
[  130.046677][    C1]  ? __pfx_vpanic+0x10/0x10
[  130.048158][    C1]  ? is_bpf_text_address+0x292/0x2b0
[  130.049834][    C1]  ? is_bpf_text_address+0x26/0x2b0
[  130.051489][    C1]  panic+0xc5/0xd0
[  130.052699][    C1]  ? __pfx_panic+0x10/0x10
[  130.054138][    C1]  __warn+0x315/0x4c0
[  130.055407][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.057278][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.059113][    C1]  __report_bug+0x276/0x570
[  130.060541][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.062374][    C1]  ? __pfx___report_bug+0x10/0x10
[  130.063967][    C1]  ? __lock_acquire+0x683/0x2cf0
[  130.065509][    C1]  ? __lock_acquire+0x683/0x2cf0
[  130.067135][    C1]  ? __siphash_unaligned+0x28d/0x3e0
[  130.068805][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.070654][    C1]  report_bug+0x16a/0x220
[  130.072037][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.073881][    C1]  ? qdisc_tree_reduce_backlog+0x3fc/0x4c0
[  130.075702][    C1]  handle_bug+0x9c/0x200
[  130.077085][    C1]  exc_invalid_op+0x1a/0x50
[  130.078837][    C1]  asm_exc_invalid_op+0x1a/0x20
[  130.080544][    C1] RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.082571][    C1] Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 7f b4 87 f8 e9 38 ff ff ff e8 55 a7 1a f8 eb 17 e8 4e a7 1a f8 eb 10 e8 47 a7 1a f8 90 <0f> 0b 90 eb 05 e8 3c a7 1a f8 e8 57 1e 07 02 89 c3 31 ff 89 c6 e8
[  130.088898][    C1] RSP: 0018:ffffc90000a08a08 EFLAGS: 00010246
[  130.091136][    C1] RAX: ffffffff89aa8c29 RBX: 000000000000007f RCX: ffff888112af0000
[  130.093648][    C1] RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
[  130.096179][    C1] RBP: dffffc0000000000 R08: ffffffff89aa886b R09: 0000000000000000
[  130.098686][    C1] R10: 0000000000000000 R11: ffffffff8eb63e60 R12: ffffc90000a08b80
[  130.101180][    C1] R13: 0000000000010003 R14: 000000000000007f R15: ffff8881145f7800
[  130.103658][    C1]  ? qdisc_tree_reduce_backlog+0x3b/0x4c0
[  130.105449][    C1]  ? qdisc_tree_reduce_backlog+0x3f9/0x4c0
[  130.107311][    C1]  ? qdisc_tree_reduce_backlog+0x3f9/0x4c0
[  130.109157][    C1]  ? qdisc_tree_reduce_backlog+0x3b/0x4c0
[  130.110960][    C1]  sfq_perturbation+0x2028/0x2280
[  130.112550][    C1]  ? sfq_perturbation+0x10c/0x2280
[  130.114174][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  130.115886][    C1]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  130.117599][    C1]  call_timer_fn+0x192/0x5e0
[  130.119068][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  130.120741][    C1]  ? call_timer_fn+0xd4/0x5e0
[  130.122226][    C1]  ? __pfx_call_timer_fn+0x10/0x10
[  130.123843][    C1]  ? _raw_spin_unlock_irq+0x23/0x50
[  130.125472][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  130.127196][    C1]  __run_timer_base+0x652/0x8b0
[  130.128729][    C1]  ? lock_acquire+0x106/0x350
[  130.130232][    C1]  ? __pfx___run_timer_base+0x10/0x10
[  130.131938][    C1]  run_timer_softirq+0x103/0x170
[  130.133494][    C1]  handle_softirqs+0x225/0x840
[  130.135023][    C1]  ? __irq_exit_rcu+0xca/0x220
[  130.136591][    C1]  __irq_exit_rcu+0xca/0x220
[  130.138076][    C1]  irq_exit_rcu+0x9/0x30
[  130.139433][    C1]  sysvec_apic_timer_interrupt+0xa6/0xc0
[  130.141224][    C1]  </IRQ>
[  130.142191][    C1]  <TASK>
[  130.143151][    C1]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  130.145045][    C1] RIP: 0010:prio_reset+0x33/0x130
[  130.146698][    C1] Code: 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f0 e4 0c f8 4c 8d bb 80 02 00 00 4d 89 fe 49 c1 ee 03 43 0f b6 04 2e <84> c0 0f 85 c8 00 00 00 41 8b 2f 31 ff 89 ee e8 09 e9 0c f8 85 ed
[  130.152702][    C1] RSP: 0018:ffffc90003aa7068 EFLAGS: 00000a06
[  130.154618][    C1] RAX: 0000000000000000 RBX: ffff8881ec8de000 RCX: ffff888112af0000
[  130.157105][    C1] RDX: 0000000000000000 RSI: ffffffff8c321360 RDI: ffff8881ec8de000
[  130.159567][    C1] RBP: ffff8881ec867a01 R08: ffffffff9060b637 R09: 1ffffffff20c16c6
[  130.162039][    C1] R10: dffffc0000000000 R11: ffffffff89b84e60 R12: 0000000000000001
[  130.164508][    C1] R13: dffffc0000000000 R14: 1ffff1103d91bc50 R15: ffff8881ec8de280
[  130.167024][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.168574][    C1]  ? prio_reset+0x20/0x130
[  130.170024][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.171567][    C1]  qdisc_reset+0xff/0x570
[  130.172951][    C1]  prio_reset+0x9b/0x130
[  130.174310][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.175846][    C1]  qdisc_reset+0xff/0x570
[  130.177390][    C1]  prio_reset+0x9b/0x130
[  130.178858][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.180425][    C1]  qdisc_reset+0xff/0x570
[  130.181812][    C1]  prio_reset+0x9b/0x130
[  130.183178][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.184743][    C1]  qdisc_reset+0xff/0x570
[  130.186128][    C1]  prio_reset+0x9b/0x130
[  130.187492][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.189050][    C1]  qdisc_reset+0xff/0x570
[  130.190418][    C1]  prio_reset+0x9b/0x130
[  130.191792][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.193339][    C1]  qdisc_reset+0xff/0x570
[  130.194714][    C1]  prio_reset+0x9b/0x130
[  130.196072][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.197624][    C1]  qdisc_reset+0xff/0x570
[  130.199005][    C1]  prio_reset+0x9b/0x130
[  130.200340][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.201883][    C1]  qdisc_reset+0xff/0x570
[  130.203256][    C1]  __qdisc_destroy+0x120/0x470
[  130.204794][    C1]  qdisc_graft+0x1083/0x1600
[  130.206439][    C1]  ? __pfx_qdisc_graft+0x10/0x10
[  130.208125][    C1]  ? __mutex_trylock_common+0x15f/0x270
[  130.209911][    C1]  tc_get_qdisc+0xc0a/0x1250
[  130.211386][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  130.213008][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  130.214604][    C1]  rtnetlink_rcv_msg+0x7b9/0xc00
[  130.216178][    C1]  ? rtnetlink_rcv_msg+0x1c9/0xc00
[  130.217853][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  130.219565][    C1]  ? __lock_acquire+0x683/0x2cf0
[  130.221132][    C1]  netlink_rcv_skb+0x226/0x4a0
[  130.222754][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  130.224531][    C1]  ? __pfx_netlink_rcv_skb+0x10/0x10
[  130.226215][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  130.227874][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  130.229532][    C1]  netlink_unicast+0x7bb/0x940
[  130.231052][    C1]  netlink_sendmsg+0x813/0xb40
[  130.232579][    C1]  ? __pfx_selinux_socket_sendmsg+0x10/0x10
[  130.234460][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  130.236135][    C1]  ? tomoyo_socket_sendmsg_permission+0x1e0/0x300
[  130.238194][    C1]  ? __fget_files+0x3a2/0x420
[  130.239789][    C1]  ? __fget_files+0x2a/0x420
[  130.241258][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  130.242926][    C1]  sock_sendmsg_nosec+0x13a/0x180
[  130.244533][    C1]  __sys_sendto+0x408/0x5a0
[  130.246122][    C1]  ? __pfx___sys_sendto+0x10/0x10
[  130.247838][    C1]  ? irqentry_exit+0x218/0x8f0
[  130.249383][    C1]  ? rcu_is_watching+0x15/0xb0
[  130.250925][    C1]  __x64_sys_sendto+0xde/0x100
[  130.252445][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.254364][    C1]  do_syscall_64+0x174/0x580
[  130.255843][    C1]  ? clear_bhb_loop+0x40/0x90
[  130.257364][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.259227][    C1] RIP: 0033:0x7fd4fc25c47e
[  130.260632][    C1] Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
[  130.266614][    C1] RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  130.269232][    C1] RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
[  130.271717][    C1] RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
[  130.274191][    C1] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  130.276682][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
[  130.279160][    C1] R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
[  130.281624][    C1]  </TASK>
[  130.283325][    C1] Kernel Offset: disabled
[  130.284718][    C1] Rebooting in 86400 seconds..
 OtherCrashReports:<nil> StraceOutput: TestError:]

889/3 2026/08/15 19:48 action truncate-log
0m Results:
map[TruncatedConsoleOutput:[  129.929366][    C1]  qdisc_reset+0xff/0x570
[  129.930765][    C1]  prio_reset+0x9b/0x130
[  129.932141][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.933715][    C1]  qdisc_reset+0xff/0x570
[  129.935099][    C1]  prio_reset+0x9b/0x130
[  129.936470][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.938043][    C1]  qdisc_reset+0xff/0x570
[  129.939491][    C1]  prio_reset+0x9b/0x130
[  129.940980][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.942629][    C1]  qdisc_reset+0xff/0x570
[  129.944026][    C1]  prio_reset+0x9b/0x130
[  129.945381][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.946961][    C1]  qdisc_reset+0xff/0x570
[  129.948338][    C1]  prio_reset+0x9b/0x130
[  129.949771][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.951323][    C1]  qdisc_reset+0xff/0x570
[  129.952716][    C1]  __qdisc_destroy+0x120/0x470
[  129.954234][    C1]  qdisc_graft+0x1083/0x1600
[  129.955708][    C1]  ? __pfx_qdisc_graft+0x10/0x10
[  129.957300][    C1]  ? __mutex_trylock_common+0x15f/0x270
[  129.959107][    C1]  tc_get_qdisc+0xc0a/0x1250
[  129.960587][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  129.962184][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  129.963767][    C1]  rtnetlink_rcv_msg+0x7b9/0xc00
[  129.965327][    C1]  ? rtnetlink_rcv_msg+0x1c9/0xc00
[  129.966997][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  129.968768][    C1]  ? __lock_acquire+0x683/0x2cf0
[  129.970350][    C1]  netlink_rcv_skb+0x226/0x4a0
[  129.971863][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  129.973697][    C1]  ? __pfx_netlink_rcv_skb+0x10/0x10
[  129.975404][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  129.977104][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  129.978872][    C1]  netlink_unicast+0x7bb/0x940
[  129.980591][    C1]  netlink_sendmsg+0x813/0xb40
[  129.982139][    C1]  ? __pfx_selinux_socket_sendmsg+0x10/0x10
[  129.984133][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  129.985821][    C1]  ? tomoyo_socket_sendmsg_permission+0x1e0/0x300
[  129.987892][    C1]  ? __fget_files+0x3a2/0x420
[  129.989495][    C1]  ? __fget_files+0x2a/0x420
[  129.990975][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  129.992624][    C1]  sock_sendmsg_nosec+0x13a/0x180
[  129.994209][    C1]  __sys_sendto+0x408/0x5a0
[  129.995757][    C1]  ? __pfx___sys_sendto+0x10/0x10
[  129.997418][    C1]  ? irqentry_exit+0x218/0x8f0
[  129.999058][    C1]  ? rcu_is_watching+0x15/0xb0
[  130.000602][    C1]  __x64_sys_sendto+0xde/0x100
[  130.002141][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.004042][    C1]  do_syscall_64+0x174/0x580
[  130.005496][    C1]  ? clear_bhb_loop+0x40/0x90
[  130.007027][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.008967][    C1] RIP: 0033:0x7fd4fc25c47e
[  130.010385][    C1] Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
[  130.016399][    C1] RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  130.019099][    C1] RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
[  130.021577][    C1] RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
[  130.024063][    C1] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  130.026550][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
[  130.029112][    C1] R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
[  130.031586][    C1]  </TASK>
[  130.032572][    C1] Kernel panic - not syncing: kernel: panic_on_warn set ...
[  130.034851][    C1] CPU: 1 UID: 0 PID: 5844 Comm: syz-executor144 Not tainted syzkaller #1 PREEMPT(full) 
[  130.037848][    C1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  130.040986][    C1] Call Trace:
[  130.042058][    C1]  <IRQ>
[  130.042993][    C1]  vpanic+0x56c/0xa60
[  130.044946][    C1]  ? __pfx__printk+0x10/0x10
[  130.046677][    C1]  ? __pfx_vpanic+0x10/0x10
[  130.048158][    C1]  ? is_bpf_text_address+0x292/0x2b0
[  130.049834][    C1]  ? is_bpf_text_address+0x26/0x2b0
[  130.051489][    C1]  panic+0xc5/0xd0
[  130.052699][    C1]  ? __pfx_panic+0x10/0x10
[  130.054138][    C1]  __warn+0x315/0x4c0
[  130.055407][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.057278][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.059113][    C1]  __report_bug+0x276/0x570
[  130.060541][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.062374][    C1]  ? __pfx___report_bug+0x10/0x10
[  130.063967][    C1]  ? __lock_acquire+0x683/0x2cf0
[  130.065509][    C1]  ? __lock_acquire+0x683/0x2cf0
[  130.067135][    C1]  ? __siphash_unaligned+0x28d/0x3e0
[  130.068805][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.070654][    C1]  report_bug+0x16a/0x220
[  130.072037][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.073881][    C1]  ? qdisc_tree_reduce_backlog+0x3fc/0x4c0
[  130.075702][    C1]  handle_bug+0x9c/0x200
[  130.077085][    C1]  exc_invalid_op+0x1a/0x50
[  130.078837][    C1]  asm_exc_invalid_op+0x1a/0x20
[  130.080544][    C1] RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.082571][    C1] Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 7f b4 87 f8 e9 38 ff ff ff e8 55 a7 1a f8 eb 17 e8 4e a7 1a f8 eb 10 e8 47 a7 1a f8 90 <0f> 0b 90 eb 05 e8 3c a7 1a f8 e8 57 1e 07 02 89 c3 31 ff 89 c6 e8
[  130.088898][    C1] RSP: 0018:ffffc90000a08a08 EFLAGS: 00010246
[  130.091136][    C1] RAX: ffffffff89aa8c29 RBX: 000000000000007f RCX: ffff888112af0000
[  130.093648][    C1] RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
[  130.096179][    C1] RBP: dffffc0000000000 R08: ffffffff89aa886b R09: 0000000000000000
[  130.098686][    C1] R10: 0000000000000000 R11: ffffffff8eb63e60 R12: ffffc90000a08b80
[  130.101180][    C1] R13: 0000000000010003 R14: 000000000000007f R15: ffff8881145f7800
[  130.103658][    C1]  ? qdisc_tree_reduce_backlog+0x3b/0x4c0
[  130.105449][    C1]  ? qdisc_tree_reduce_backlog+0x3f9/0x4c0
[  130.107311][    C1]  ? qdisc_tree_reduce_backlog+0x3f9/0x4c0
[  130.109157][    C1]  ? qdisc_tree_reduce_backlog+0x3b/0x4c0
[  130.110960][    C1]  sfq_perturbation+0x2028/0x2280
[  130.112550][    C1]  ? sfq_perturbation+0x10c/0x2280
[  130.114174][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  130.115886][    C1]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  130.117599][    C1]  call_timer_fn+0x192/0x5e0
[  130.119068][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  130.120741][    C1]  ? call_timer_fn+0xd4/0x5e0
[  130.122226][    C1]  ? __pfx_call_timer_fn+0x10/0x10
[  130.123843][    C1]  ? _raw_spin_unlock_irq+0x23/0x50
[  130.125472][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  130.127196][    C1]  __run_timer_base+0x652/0x8b0
[  130.128729][    C1]  ? lock_acquire+0x106/0x350
[  130.130232][    C1]  ? __pfx___run_timer_base+0x10/0x10
[  130.131938][    C1]  run_timer_softirq+0x103/0x170
[  130.133494][    C1]  handle_softirqs+0x225/0x840
[  130.135023][    C1]  ? __irq_exit_rcu+0xca/0x220
[  130.136591][    C1]  __irq_exit_rcu+0xca/0x220
[  130.138076][    C1]  irq_exit_rcu+0x9/0x30
[  130.139433][    C1]  sysvec_apic_timer_interrupt+0xa6/0xc0
[  130.141224][    C1]  </IRQ>
[  130.142191][    C1]  <TASK>
[  130.143151][    C1]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  130.145045][    C1] RIP: 0010:prio_reset+0x33/0x130
[  130.146698][    C1] Code: 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f0 e4 0c f8 4c 8d bb 80 02 00 00 4d 89 fe 49 c1 ee 03 43 0f b6 04 2e <84> c0 0f 85 c8 00 00 00 41 8b 2f 31 ff 89 ee e8 09 e9 0c f8 85 ed
[  130.152702][    C1] RSP: 0018:ffffc90003aa7068 EFLAGS: 00000a06
[  130.154618][    C1] RAX: 0000000000000000 RBX: ffff8881ec8de000 RCX: ffff888112af0000
[  130.157105][    C1] RDX: 0000000000000000 RSI: ffffffff8c321360 RDI: ffff8881ec8de000
[  130.159567][    C1] RBP: ffff8881ec867a01 R08: ffffffff9060b637 R09: 1ffffffff20c16c6
[  130.162039][    C1] R10: dffffc0000000000 R11: ffffffff89b84e60 R12: 0000000000000001
[  130.164508][    C1] R13: dffffc0000000000 R14: 1ffff1103d91bc50 R15: ffff8881ec8de280
[  130.167024][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.168574][    C1]  ? prio_reset+0x20/0x130
[  130.170024][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.171567][    C1]  qdisc_reset+0xff/0x570
[  130.172951][    C1]  prio_reset+0x9b/0x130
[  130.174310][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.175846][    C1]  qdisc_reset+0xff/0x570
[  130.177390][    C1]  prio_reset+0x9b/0x130
[  130.178858][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.180425][    C1]  qdisc_reset+0xff/0x570
[  130.181812][    C1]  prio_reset+0x9b/0x130
[  130.183178][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.184743][    C1]  qdisc_reset+0xff/0x570
[  130.186128][    C1]  prio_reset+0x9b/0x130
[  130.187492][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.189050][    C1]  qdisc_reset+0xff/0x570
[  130.190418][    C1]  prio_reset+0x9b/0x130
[  130.191792][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.193339][    C1]  qdisc_reset+0xff/0x570
[  130.194714][    C1]  prio_reset+0x9b/0x130
[  130.196072][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.197624][    C1]  qdisc_reset+0xff/0x570
[  130.199005][    C1]  prio_reset+0x9b/0x130
[  130.200340][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.201883][    C1]  qdisc_reset+0xff/0x570
[  130.203256][    C1]  __qdisc_destroy+0x120/0x470
[  130.204794][    C1]  qdisc_graft+0x1083/0x1600
[  130.206439][    C1]  ? __pfx_qdisc_graft+0x10/0x10
[  130.208125][    C1]  ? __mutex_trylock_common+0x15f/0x270
[  130.209911][    C1]  tc_get_qdisc+0xc0a/0x1250
[  130.211386][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  130.213008][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  130.214604][    C1]  rtnetlink_rcv_msg+0x7b9/0xc00
[  130.216178][    C1]  ? rtnetlink_rcv_msg+0x1c9/0xc00
[  130.217853][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  130.219565][    C1]  ? __lock_acquire+0x683/0x2cf0
[  130.221132][    C1]  netlink_rcv_skb+0x226/0x4a0
[  130.222754][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  130.224531][    C1]  ? __pfx_netlink_rcv_skb+0x10/0x10
[  130.226215][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  130.227874][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  130.229532][    C1]  netlink_unicast+0x7bb/0x940
[  130.231052][    C1]  netlink_sendmsg+0x813/0xb40
[  130.232579][    C1]  ? __pfx_selinux_socket_sendmsg+0x10/0x10
[  130.234460][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  130.236135][    C1]  ? tomoyo_socket_sendmsg_permission+0x1e0/0x300
[  130.238194][    C1]  ? __fget_files+0x3a2/0x420
[  130.239789][    C1]  ? __fget_files+0x2a/0x420
[  130.241258][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  130.242926][    C1]  sock_sendmsg_nosec+0x13a/0x180
[  130.244533][    C1]  __sys_sendto+0x408/0x5a0
[  130.246122][    C1]  ? __pfx___sys_sendto+0x10/0x10
[  130.247838][    C1]  ? irqentry_exit+0x218/0x8f0
[  130.249383][    C1]  ? rcu_is_watching+0x15/0xb0
[  130.250925][    C1]  __x64_sys_sendto+0xde/0x100
[  130.252445][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.254364][    C1]  do_syscall_64+0x174/0x580
[  130.255843][    C1]  ? clear_bhb_loop+0x40/0x90
[  130.257364][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.259227][    C1] RIP: 0033:0x7fd4fc25c47e
[  130.260632][    C1] Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
[  130.266614][    C1] RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  130.269232][    C1] RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
[  130.271717][    C1] RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
[  130.274191][    C1] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  130.276682][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
[  130.279160][    C1] R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
[  130.281624][    C1]  </TASK>
[  130.283325][    C1] Kernel Offset: disabled
[  130.284718][    C1] Rebooting in 86400 seconds..
 TruncatedCrashReport:------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: syz-executor144/5844
Modules linked in:
CPU: 1 UID: 0 PID: 5844 Comm: syz-executor144 Not tainted syzkaller #1 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 7f b4 87 f8 e9 38 ff ff ff e8 55 a7 1a f8 eb 17 e8 4e a7 1a f8 eb 10 e8 47 a7 1a f8 90 <0f> 0b 90 eb 05 e8 3c a7 1a f8 e8 57 1e 07 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a08a08 EFLAGS: 00010246
RAX: ffffffff89aa8c29 RBX: 000000000000007f RCX: ffff888112af0000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff89aa886b R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8eb63e60 R12: ffffc90000a08b80
R13: 0000000000010003 R14: 000000000000007f R15: ffff8881145f7800
FS:  00007fd4fa9f86c0(0000) GS:ffff8882e86f1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055621761df30 CR3: 0000000114674000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2028/0x2280 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x225/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:prio_reset+0x33/0x130 net/sched/sch_prio.c:136
Code: 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f0 e4 0c f8 4c 8d bb 80 02 00 00 4d 89 fe 49 c1 ee 03 43 0f b6 04 2e <84> c0 0f 85 c8 00 00 00 41 8b 2f 31 ff 89 ee e8 09 e9 0c f8 85 ed
RSP: 0018:ffffc90003aa7068 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff8881ec8de000 RCX: ffff888112af0000
RDX: 0000000000000000 RSI: ffffffff8c321360 RDI: ffff8881ec8de000
RBP: ffff8881ec867a01 R08: ffffffff9060b637 R09: 1ffffffff20c16c6
R10: dffffc0000000000 R11: ffffffff89b84e60 R12: 0000000000000001
R13: dffffc0000000000 R14: 1ffff1103d91bc50 R15: ffff8881ec8de280
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 __qdisc_destroy+0x120/0x470 net/sched/sch_generic.c:1118
 notify_and_destroy net/sched/sch_api.c:1066 [inline]
 qdisc_graft+0x1083/0x1600 net/sched/sch_api.c:1163
 __tc_get_qdisc net/sched/sch_api.c:1532 [inline]
 tc_get_qdisc+0xc0a/0x1250 net/sched/sch_api.c:1560
 rtnetlink_rcv_msg+0x7b9/0xc00 net/core/rtnetlink.c:7085
 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
 __sock_sendmsg net/socket.c:790 [inline]
 __sys_sendto+0x408/0x5a0 net/socket.c:2252
 __do_sys_sendto net/socket.c:2259 [inline]
 __se_sys_sendto net/socket.c:2255 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2255
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd4fc25c47e
Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
 </TASK>
----------------
Code disassembly (best guess):
   0:	41 55                	push   %r13
   2:	41 54                	push   %r12
   4:	53                   	push   %rbx
   5:	48 89 fb             	mov    %rdi,%rbx
   8:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
   f:	fc ff df
  12:	e8 f0 e4 0c f8       	call   0xf80ce507
  17:	4c 8d bb 80 02 00 00 	lea    0x280(%rbx),%r15
  1e:	4d 89 fe             	mov    %r15,%r14
  21:	49 c1 ee 03          	shr    $0x3,%r14
  25:	43 0f b6 04 2e       	movzbl (%r14,%r13,1),%eax
* 2a:	84 c0                	test   %al,%al <-- trapping instruction
  2c:	0f 85 c8 00 00 00    	jne    0xfa
  32:	41 8b 2f             	mov    (%r15),%ebp
  35:	31 ff                	xor    %edi,%edi
  37:	89 ee                	mov    %ebp,%esi
  39:	e8 09 e9 0c f8       	call   0xf80ce947
  3e:	85 ed                	test   %ebp,%ebp
 TruncatedStraceOutput:]

890/3 2026/08/15 19:48 agent repro-oracle
0m Model:
best-expensive

Results:
map[Feedback:The execution successfully reproduced the crash. The triggered crash matches the expected bug exactly, with the same warning message ("WARNING in qdisc_tree_reduce_backlog") and call trace involving `sfq_perturbation` and `qdisc_tree_reduce_backlog` during `qdisc_reset` triggered by `tc_get_qdisc`. ProbePassed:false TerminalError: TitleMatches:true]

Instruction:
You are a security researcher with deep Linux kernel background.
Analyze the results of running the generated program.

=== CRITICAL ENVIRONMENT & TARGET CLASSIFICATION ===
Set 'TerminalError' to a descriptive error message ONLY if:
1. The execution failed due to missing hardware device nodes, subsystems, kernel modules, or privilege limits
   that cannot be loaded, created, or bypassed by user-space C code edits in the VM guest.
2. The target source files or functions described in the bug description do not exist in the checked-out codebase,
   meaning the codebase version is mismatched and the target code is absent.

=== CRITICAL PROHIBITIONS ===
- Do NOT classify a run as a terminal failure or assume a bug is fixed based on git log entries, commit titles,
  or commit messages. Reproducibility can ONLY be determined by executing reproducer candidates in the VM.
- Do NOT suggest C code strategies, repairs, or namespace bypasses when setting 'TerminalError'.


=== PHASE 2: BUG REPRODUCTION (EVALUATION) ===
The executed program was a full reproducer candidate attempting to trigger the target bug/crash.
Use this to guide your classification and feedback:
1. If a crash was triggered (Reproduced is true):
   - Determine if the triggered crash matches the expected bug.
   - If you conclude they represent the same underlying bug (the same root cause)
     despite different titles, crash signatures, or call traces, set TitleMatches
     to true and provide a detailed, technical, and verbose explanation of the
     equivalence in the 'Feedback' field.
   - If they do not represent the same bug (a completely unrelated crash/collision),
     set TitleMatches to false and explain the collision in 'Feedback'.
   - If they match exactly, set TitleMatches to true and provide a brief confirmation in 'Feedback'.
2. If the execution was successful (exit 0) WITHOUT a crash (Reproduced is false):
   - The reproduction attempt failed to trigger the bug. Analyze the console/strace output
     to understand why the bug did not trigger (e.g., timing, input arguments, environment setup)
     and provide feedback on how to improve the reproducer logic to trigger the crash.

Critical Diagnostic Rule for Reproduction Failures:
If the reproduction attempt fails (e.g., a system call returns an error, or a
warning/error message appears in the console log), you MUST:
1. Identify the failing system call from the execution trace or strace output.
2. Identify any corresponding warning or error messages in the console log.
3. Immediately search the kernel source tree for the warning message strings or
   the code of the failing system call/subsystem to locate the validation logic.
4. Trace the kernel's validation logic to diagnose the exact constraint violation
   or input mismatch in the generated program.
5. Provide a technical diagnosis in the feedback explaining the exact kernel constraint that was violated and why.

Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt:
Bug Description: WARNING in qdisc_tree_reduce_backlog

------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: ktimers/1/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: ktimers/1 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 4f 66 f2 f8 e9 38 ff ff ff e8 e5 f4 88 f8 eb 17 e8 de f4 88 f8 eb 10 e8 d7 f4 88 f8 90 <0f> 0b 90 eb 05 e8 cc f4 88 f8 e8 e7 46 06 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a3f768 EFLAGS: 00010246
RAX: ffffffff893c43b9 RBX: 00000000000000ac RCX: ffff88801d2ebe00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: 0000000000000000 R11: ffffffff8e1c3000 R12: ffffc90000a3f8e0
R13: 00000000000affe0 R14: 000000000000002b R15: ffff8880255ac800
FS:  0000000000000000(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd6e547000 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2046/0x22b0 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67b/0x9b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x1d9/0x6c0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 run_ktimerd+0x69/0x100 kernel/softirq.c:1151
 smpboot_thread_fn+0x57c/0xa80 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

IsProbe: false
Reproduced: true
Console Output: [  129.929366][    C1]  qdisc_reset+0xff/0x570
[  129.930765][    C1]  prio_reset+0x9b/0x130
[  129.932141][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.933715][    C1]  qdisc_reset+0xff/0x570
[  129.935099][    C1]  prio_reset+0x9b/0x130
[  129.936470][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.938043][    C1]  qdisc_reset+0xff/0x570
[  129.939491][    C1]  prio_reset+0x9b/0x130
[  129.940980][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.942629][    C1]  qdisc_reset+0xff/0x570
[  129.944026][    C1]  prio_reset+0x9b/0x130
[  129.945381][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.946961][    C1]  qdisc_reset+0xff/0x570
[  129.948338][    C1]  prio_reset+0x9b/0x130
[  129.949771][    C1]  ? __pfx_prio_reset+0x10/0x10
[  129.951323][    C1]  qdisc_reset+0xff/0x570
[  129.952716][    C1]  __qdisc_destroy+0x120/0x470
[  129.954234][    C1]  qdisc_graft+0x1083/0x1600
[  129.955708][    C1]  ? __pfx_qdisc_graft+0x10/0x10
[  129.957300][    C1]  ? __mutex_trylock_common+0x15f/0x270
[  129.959107][    C1]  tc_get_qdisc+0xc0a/0x1250
[  129.960587][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  129.962184][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  129.963767][    C1]  rtnetlink_rcv_msg+0x7b9/0xc00
[  129.965327][    C1]  ? rtnetlink_rcv_msg+0x1c9/0xc00
[  129.966997][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  129.968768][    C1]  ? __lock_acquire+0x683/0x2cf0
[  129.970350][    C1]  netlink_rcv_skb+0x226/0x4a0
[  129.971863][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  129.973697][    C1]  ? __pfx_netlink_rcv_skb+0x10/0x10
[  129.975404][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  129.977104][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  129.978872][    C1]  netlink_unicast+0x7bb/0x940
[  129.980591][    C1]  netlink_sendmsg+0x813/0xb40
[  129.982139][    C1]  ? __pfx_selinux_socket_sendmsg+0x10/0x10
[  129.984133][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  129.985821][    C1]  ? tomoyo_socket_sendmsg_permission+0x1e0/0x300
[  129.987892][    C1]  ? __fget_files+0x3a2/0x420
[  129.989495][    C1]  ? __fget_files+0x2a/0x420
[  129.990975][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  129.992624][    C1]  sock_sendmsg_nosec+0x13a/0x180
[  129.994209][    C1]  __sys_sendto+0x408/0x5a0
[  129.995757][    C1]  ? __pfx___sys_sendto+0x10/0x10
[  129.997418][    C1]  ? irqentry_exit+0x218/0x8f0
[  129.999058][    C1]  ? rcu_is_watching+0x15/0xb0
[  130.000602][    C1]  __x64_sys_sendto+0xde/0x100
[  130.002141][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.004042][    C1]  do_syscall_64+0x174/0x580
[  130.005496][    C1]  ? clear_bhb_loop+0x40/0x90
[  130.007027][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.008967][    C1] RIP: 0033:0x7fd4fc25c47e
[  130.010385][    C1] Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
[  130.016399][    C1] RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  130.019099][    C1] RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
[  130.021577][    C1] RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
[  130.024063][    C1] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  130.026550][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
[  130.029112][    C1] R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
[  130.031586][    C1]  </TASK>
[  130.032572][    C1] Kernel panic - not syncing: kernel: panic_on_warn set ...
[  130.034851][    C1] CPU: 1 UID: 0 PID: 5844 Comm: syz-executor144 Not tainted syzkaller #1 PREEMPT(full) 
[  130.037848][    C1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  130.040986][    C1] Call Trace:
[  130.042058][    C1]  <IRQ>
[  130.042993][    C1]  vpanic+0x56c/0xa60
[  130.044946][    C1]  ? __pfx__printk+0x10/0x10
[  130.046677][    C1]  ? __pfx_vpanic+0x10/0x10
[  130.048158][    C1]  ? is_bpf_text_address+0x292/0x2b0
[  130.049834][    C1]  ? is_bpf_text_address+0x26/0x2b0
[  130.051489][    C1]  panic+0xc5/0xd0
[  130.052699][    C1]  ? __pfx_panic+0x10/0x10
[  130.054138][    C1]  __warn+0x315/0x4c0
[  130.055407][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.057278][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.059113][    C1]  __report_bug+0x276/0x570
[  130.060541][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.062374][    C1]  ? __pfx___report_bug+0x10/0x10
[  130.063967][    C1]  ? __lock_acquire+0x683/0x2cf0
[  130.065509][    C1]  ? __lock_acquire+0x683/0x2cf0
[  130.067135][    C1]  ? __siphash_unaligned+0x28d/0x3e0
[  130.068805][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.070654][    C1]  report_bug+0x16a/0x220
[  130.072037][    C1]  ? qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.073881][    C1]  ? qdisc_tree_reduce_backlog+0x3fc/0x4c0
[  130.075702][    C1]  handle_bug+0x9c/0x200
[  130.077085][    C1]  exc_invalid_op+0x1a/0x50
[  130.078837][    C1]  asm_exc_invalid_op+0x1a/0x20
[  130.080544][    C1] RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0
[  130.082571][    C1] Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 7f b4 87 f8 e9 38 ff ff ff e8 55 a7 1a f8 eb 17 e8 4e a7 1a f8 eb 10 e8 47 a7 1a f8 90 <0f> 0b 90 eb 05 e8 3c a7 1a f8 e8 57 1e 07 02 89 c3 31 ff 89 c6 e8
[  130.088898][    C1] RSP: 0018:ffffc90000a08a08 EFLAGS: 00010246
[  130.091136][    C1] RAX: ffffffff89aa8c29 RBX: 000000000000007f RCX: ffff888112af0000
[  130.093648][    C1] RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
[  130.096179][    C1] RBP: dffffc0000000000 R08: ffffffff89aa886b R09: 0000000000000000
[  130.098686][    C1] R10: 0000000000000000 R11: ffffffff8eb63e60 R12: ffffc90000a08b80
[  130.101180][    C1] R13: 0000000000010003 R14: 000000000000007f R15: ffff8881145f7800
[  130.103658][    C1]  ? qdisc_tree_reduce_backlog+0x3b/0x4c0
[  130.105449][    C1]  ? qdisc_tree_reduce_backlog+0x3f9/0x4c0
[  130.107311][    C1]  ? qdisc_tree_reduce_backlog+0x3f9/0x4c0
[  130.109157][    C1]  ? qdisc_tree_reduce_backlog+0x3b/0x4c0
[  130.110960][    C1]  sfq_perturbation+0x2028/0x2280
[  130.112550][    C1]  ? sfq_perturbation+0x10c/0x2280
[  130.114174][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  130.115886][    C1]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  130.117599][    C1]  call_timer_fn+0x192/0x5e0
[  130.119068][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  130.120741][    C1]  ? call_timer_fn+0xd4/0x5e0
[  130.122226][    C1]  ? __pfx_call_timer_fn+0x10/0x10
[  130.123843][    C1]  ? _raw_spin_unlock_irq+0x23/0x50
[  130.125472][    C1]  ? __pfx_sfq_perturbation+0x10/0x10
[  130.127196][    C1]  __run_timer_base+0x652/0x8b0
[  130.128729][    C1]  ? lock_acquire+0x106/0x350
[  130.130232][    C1]  ? __pfx___run_timer_base+0x10/0x10
[  130.131938][    C1]  run_timer_softirq+0x103/0x170
[  130.133494][    C1]  handle_softirqs+0x225/0x840
[  130.135023][    C1]  ? __irq_exit_rcu+0xca/0x220
[  130.136591][    C1]  __irq_exit_rcu+0xca/0x220
[  130.138076][    C1]  irq_exit_rcu+0x9/0x30
[  130.139433][    C1]  sysvec_apic_timer_interrupt+0xa6/0xc0
[  130.141224][    C1]  </IRQ>
[  130.142191][    C1]  <TASK>
[  130.143151][    C1]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  130.145045][    C1] RIP: 0010:prio_reset+0x33/0x130
[  130.146698][    C1] Code: 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f0 e4 0c f8 4c 8d bb 80 02 00 00 4d 89 fe 49 c1 ee 03 43 0f b6 04 2e <84> c0 0f 85 c8 00 00 00 41 8b 2f 31 ff 89 ee e8 09 e9 0c f8 85 ed
[  130.152702][    C1] RSP: 0018:ffffc90003aa7068 EFLAGS: 00000a06
[  130.154618][    C1] RAX: 0000000000000000 RBX: ffff8881ec8de000 RCX: ffff888112af0000
[  130.157105][    C1] RDX: 0000000000000000 RSI: ffffffff8c321360 RDI: ffff8881ec8de000
[  130.159567][    C1] RBP: ffff8881ec867a01 R08: ffffffff9060b637 R09: 1ffffffff20c16c6
[  130.162039][    C1] R10: dffffc0000000000 R11: ffffffff89b84e60 R12: 0000000000000001
[  130.164508][    C1] R13: dffffc0000000000 R14: 1ffff1103d91bc50 R15: ffff8881ec8de280
[  130.167024][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.168574][    C1]  ? prio_reset+0x20/0x130
[  130.170024][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.171567][    C1]  qdisc_reset+0xff/0x570
[  130.172951][    C1]  prio_reset+0x9b/0x130
[  130.174310][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.175846][    C1]  qdisc_reset+0xff/0x570
[  130.177390][    C1]  prio_reset+0x9b/0x130
[  130.178858][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.180425][    C1]  qdisc_reset+0xff/0x570
[  130.181812][    C1]  prio_reset+0x9b/0x130
[  130.183178][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.184743][    C1]  qdisc_reset+0xff/0x570
[  130.186128][    C1]  prio_reset+0x9b/0x130
[  130.187492][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.189050][    C1]  qdisc_reset+0xff/0x570
[  130.190418][    C1]  prio_reset+0x9b/0x130
[  130.191792][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.193339][    C1]  qdisc_reset+0xff/0x570
[  130.194714][    C1]  prio_reset+0x9b/0x130
[  130.196072][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.197624][    C1]  qdisc_reset+0xff/0x570
[  130.199005][    C1]  prio_reset+0x9b/0x130
[  130.200340][    C1]  ? __pfx_prio_reset+0x10/0x10
[  130.201883][    C1]  qdisc_reset+0xff/0x570
[  130.203256][    C1]  __qdisc_destroy+0x120/0x470
[  130.204794][    C1]  qdisc_graft+0x1083/0x1600
[  130.206439][    C1]  ? __pfx_qdisc_graft+0x10/0x10
[  130.208125][    C1]  ? __mutex_trylock_common+0x15f/0x270
[  130.209911][    C1]  tc_get_qdisc+0xc0a/0x1250
[  130.211386][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  130.213008][    C1]  ? __pfx_tc_get_qdisc+0x10/0x10
[  130.214604][    C1]  rtnetlink_rcv_msg+0x7b9/0xc00
[  130.216178][    C1]  ? rtnetlink_rcv_msg+0x1c9/0xc00
[  130.217853][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  130.219565][    C1]  ? __lock_acquire+0x683/0x2cf0
[  130.221132][    C1]  netlink_rcv_skb+0x226/0x4a0
[  130.222754][    C1]  ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[  130.224531][    C1]  ? __pfx_netlink_rcv_skb+0x10/0x10
[  130.226215][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  130.227874][    C1]  ? netlink_deliver_tap+0x2e/0x1b0
[  130.229532][    C1]  netlink_unicast+0x7bb/0x940
[  130.231052][    C1]  netlink_sendmsg+0x813/0xb40
[  130.232579][    C1]  ? __pfx_selinux_socket_sendmsg+0x10/0x10
[  130.234460][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  130.236135][    C1]  ? tomoyo_socket_sendmsg_permission+0x1e0/0x300
[  130.238194][    C1]  ? __fget_files+0x3a2/0x420
[  130.239789][    C1]  ? __fget_files+0x2a/0x420
[  130.241258][    C1]  ? __pfx_netlink_sendmsg+0x10/0x10
[  130.242926][    C1]  sock_sendmsg_nosec+0x13a/0x180
[  130.244533][    C1]  __sys_sendto+0x408/0x5a0
[  130.246122][    C1]  ? __pfx___sys_sendto+0x10/0x10
[  130.247838][    C1]  ? irqentry_exit+0x218/0x8f0
[  130.249383][    C1]  ? rcu_is_watching+0x15/0xb0
[  130.250925][    C1]  __x64_sys_sendto+0xde/0x100
[  130.252445][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.254364][    C1]  do_syscall_64+0x174/0x580
[  130.255843][    C1]  ? clear_bhb_loop+0x40/0x90
[  130.257364][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  130.259227][    C1] RIP: 0033:0x7fd4fc25c47e
[  130.260632][    C1] Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
[  130.266614][    C1] RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  130.269232][    C1] RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
[  130.271717][    C1] RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
[  130.274191][    C1] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  130.276682][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
[  130.279160][    C1] R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
[  130.281624][    C1]  </TASK>
[  130.283325][    C1] Kernel Offset: disabled
[  130.284718][    C1] Rebooting in 86400 seconds..

Strace Output: 
Crash Report: ------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: syz-executor144/5844
Modules linked in:
CPU: 1 UID: 0 PID: 5844 Comm: syz-executor144 Not tainted syzkaller #1 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 7f b4 87 f8 e9 38 ff ff ff e8 55 a7 1a f8 eb 17 e8 4e a7 1a f8 eb 10 e8 47 a7 1a f8 90 <0f> 0b 90 eb 05 e8 3c a7 1a f8 e8 57 1e 07 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a08a08 EFLAGS: 00010246
RAX: ffffffff89aa8c29 RBX: 000000000000007f RCX: ffff888112af0000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff89aa886b R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8eb63e60 R12: ffffc90000a08b80
R13: 0000000000010003 R14: 000000000000007f R15: ffff8881145f7800
FS:  00007fd4fa9f86c0(0000) GS:ffff8882e86f1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055621761df30 CR3: 0000000114674000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2028/0x2280 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x225/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:prio_reset+0x33/0x130 net/sched/sch_prio.c:136
Code: 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f0 e4 0c f8 4c 8d bb 80 02 00 00 4d 89 fe 49 c1 ee 03 43 0f b6 04 2e <84> c0 0f 85 c8 00 00 00 41 8b 2f 31 ff 89 ee e8 09 e9 0c f8 85 ed
RSP: 0018:ffffc90003aa7068 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff8881ec8de000 RCX: ffff888112af0000
RDX: 0000000000000000 RSI: ffffffff8c321360 RDI: ffff8881ec8de000
RBP: ffff8881ec867a01 R08: ffffffff9060b637 R09: 1ffffffff20c16c6
R10: dffffc0000000000 R11: ffffffff89b84e60 R12: 0000000000000001
R13: dffffc0000000000 R14: 1ffff1103d91bc50 R15: ffff8881ec8de280
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 __qdisc_destroy+0x120/0x470 net/sched/sch_generic.c:1118
 notify_and_destroy net/sched/sch_api.c:1066 [inline]
 qdisc_graft+0x1083/0x1600 net/sched/sch_api.c:1163
 __tc_get_qdisc net/sched/sch_api.c:1532 [inline]
 tc_get_qdisc+0xc0a/0x1250 net/sched/sch_api.c:1560
 rtnetlink_rcv_msg+0x7b9/0xc00 net/core/rtnetlink.c:7085
 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
 __sock_sendmsg net/socket.c:790 [inline]
 __sys_sendto+0x408/0x5a0 net/socket.c:2252
 __do_sys_sendto net/socket.c:2259 [inline]
 __se_sys_sendto net/socket.c:2255 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2255
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd4fc25c47e
Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
 </TASK>
----------------
Code disassembly (best guess):
   0:	41 55                	push   %r13
   2:	41 54                	push   %r12
   4:	53                   	push   %rbx
   5:	48 89 fb             	mov    %rdi,%rbx
   8:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
   f:	fc ff df
  12:	e8 f0 e4 0c f8       	call   0xf80ce507
  17:	4c 8d bb 80 02 00 00 	lea    0x280(%rbx),%r15
  1e:	4d 89 fe             	mov    %r15,%r14
  21:	49 c1 ee 03          	shr    $0x3,%r14
  25:	43 0f b6 04 2e       	movzbl (%r14,%r13,1),%eax
* 2a:	84 c0                	test   %al,%al <-- trapping instruction
  2c:	0f 85 c8 00 00 00    	jne    0xfa
  32:	41 8b 2f             	mov    (%r15),%ebp
  35:	31 ff                	xor    %edi,%edi
  37:	89 ee                	mov    %ebp,%esi
  39:	e8 09 e9 0c f8       	call   0xf80ce947
  3e:	85 ed                	test   %ebp,%ebp



891/4 2026/08/15 19:48 llm repro-oracle
0m Model:
gemini-3.1-pro-preview

Tokens:
							input: 16994
							output: 105
							thoughts: 1318
						

Thoughts:
**My Thoughts on the `qdisc_tree_reduce_backlog` Crash**

Alright, let's break down this crash report. It looks like we've successfully reproduced an issue that's triggering a `WARNING` in `qdisc_tree_reduce_backlog`, specifically located at `net/sched/sch_api.c:797`. The console output confirms this precisely, mirroring the warning we're seeing.

The call trace is quite illuminating. It appears that the `sfq` (Stochastic Fairness Queuing) scheduler is involved, initiating a rehash operation. This `sfq_perturbation` function seems to be setting up a timer that eventually leads to the call to `call_timer_fn` and then `expire_timers`. This, in turn, triggers `__run_timers` and `__run_timer_base`, ultimately landing in `run_timer_softirq`.

The softirq handling leads us into `handle_softirqs` and `__do_softirq`, and then through `invoke_softirq` and `__irq_exit_rcu` to `irq_exit_rcu`. From there, we get into the interrupt handling, specifically `instr_sysvec_apic_timer_interrupt` and `sysvec_apic_timer_interrupt`, which is where the actual hardware timer interrupt comes into play.

After the interrupt context, the execution shifts back to the task context. This is where things get particularly interesting. We see a series of calls involving `prio_reset` and `qdisc_reset`. It seems like the `prio` (priority) scheduler is involved in a reset operation, and this `prio_reset` function is repeatedly calling `qdisc_reset`. These `qdisc_reset` calls are eventually leading to `__qdisc_destroy`.

The core of the problem seems to be occurring within `qdisc_graft` and `notify_and_destroy`, as these functions are called to manage the grafting of qdiscs and the subsequent destruction process. This is where `qdisc_tree_reduce_backlog` is ultimately invoked and issues the warning.

Given that the reproduction was successful and the crash title exactly matches the warning we're observing, I'm confident in setting `TitleMatches` to `true`. This is a clear indication that the crash report accurately reflects the observed behavior. I'll provide a brief confirmation alongside this.


892/4 2026/08/15 19:48 tool set-results
0m Args:
map[Feedback:The execution successfully reproduced the crash. The triggered crash matches the expected bug exactly, with the same warning message ("WARNING in qdisc_tree_reduce_backlog") and call trace involving `sfq_perturbation` and `qdisc_tree_reduce_backlog` during `qdisc_reset` triggered by `tc_get_qdisc`. ProbePassed:false TerminalError: TitleMatches:true]

Results:
map[Feedback:The execution successfully reproduced the crash. The triggered crash matches the expected bug exactly, with the same warning message ("WARNING in qdisc_tree_reduce_backlog") and call trace involving `sfq_perturbation` and `qdisc_tree_reduce_backlog` during `qdisc_reset` triggered by `tc_get_qdisc`. ProbePassed:false TerminalError: TitleMatches:true]

893/3 2026/08/15 19:48 action loop-controller
0m Results:
map[CapabilitiesVerified:true ContinueSignal: EquivalenceAnalysis:The execution successfully reproduced the crash. The triggered crash matches the expected bug exactly, with the same warning message ("WARNING in qdisc_tree_reduce_backlog") and call trace involving `sfq_perturbation` and `qdisc_tree_reduce_backlog` during `qdisc_reset` triggered by `tc_get_qdisc`. OracleFeedback:The execution successfully reproduced the crash. The triggered crash matches the expected bug exactly, with the same warning message ("WARNING in qdisc_tree_reduce_backlog") and call trace involving `sfq_perturbation` and `qdisc_tree_reduce_backlog` during `qdisc_reset` triggered by `tc_get_qdisc`. ReproC:#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/udp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/if_tun.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>
#include <pthread.h>
#include <sched.h>
#include <time.h>
#include <errno.h>

#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_MAJ_MASK (0xFFFF0000U)
#define TC_H_MIN_MASK (0x0000FFFFU)
#define TC_H_MAKE(maj, min) (((maj) & TC_H_MAJ_MASK) | ((min) & TC_H_MIN_MASK))

struct my_tc_prio_qopt {
    int bands;
    unsigned char priomap[16];
};

struct my_tc_sfq_qopt {
    unsigned quantum;
    int perturb_period;
    uint32_t limit;
    unsigned divisor;
    unsigned flows;
};

struct nl_batch {
    char *buf;
    int offset;
    int max_size;
    uint32_t seq;
};

void batch_init(struct nl_batch *b, int max_size) {
    b->buf = malloc(max_size);
    if (!b->buf) {
        perror("malloc");
        exit(1);
    }
    b->offset = 0;
    b->max_size = max_size;
    b->seq = 1;
}

struct nlmsghdr *batch_begin(struct nl_batch *b, int type, int flags) {
    if (b->offset + 2048 > b->max_size) {
        printf("[-] Batch buffer too small\n");
        exit(1);
    }
    struct nlmsghdr *n = (struct nlmsghdr *)(b->buf + b->offset);
    memset(n, 0, NLMSG_LENGTH(sizeof(struct tcmsg)));
    n->nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
    n->nlmsg_type = type;
    n->nlmsg_flags = flags;
    n->nlmsg_seq = b->seq++;
    n->nlmsg_pid = getpid();
    return n;
}

void addattr_l(struct nlmsghdr *n, int type, const void *data, int alen) {
    int len = RTA_LENGTH(alen);
    struct rtattr *rta = (struct rtattr *)(((char *)n) + NLMSG_ALIGN(n->nlmsg_len));
    rta->rta_type = type;
    rta->rta_len = len;
    if (data)
        memcpy(RTA_DATA(rta), data, alen);
    else
        memset(RTA_DATA(rta), 0, alen);
    n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
}

void addattr_str(struct nlmsghdr *n, int type, const char *str) {
    addattr_l(n, type, str, strlen(str) + 1);
}

void batch_end(struct nl_batch *b, struct nlmsghdr *n) {
    b->offset += NLMSG_ALIGN(n->nlmsg_len);
}

int batch_send_and_wait(int fd, struct nl_batch *b) {
    if (b->offset == 0) return 0;
    
    struct nlmsghdr *last_n = NULL;
    int offset = 0;
    while (offset < b->offset) {
        last_n = (struct nlmsghdr *)(b->buf + offset);
        offset += NLMSG_ALIGN(last_n->nlmsg_len);
    }
    if (last_n) {
        last_n->nlmsg_flags |= NLM_F_ACK;
    }
    
    uint32_t expected_seq = last_n ? last_n->nlmsg_seq : 0;
    
    ssize_t sent = send(fd, b->buf, b->offset, 0);
    if (sent < 0) {
        perror("send");
        return -1;
    }
    b->offset = 0;
    
    if (!last_n) return 0;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            perror("recv");
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR) {
                struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nlh);
                if (nlh->nlmsg_seq == expected_seq) {
                    return err->error;
                }
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

void batch_add_prio(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "prio");
    struct my_tc_prio_qopt opt = {
        .bands = 3,
        .priomap = { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
    };
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void batch_add_sfq(struct nl_batch *b, int ifindex, uint32_t parent, uint32_t handle) {
    struct nlmsghdr *n = batch_begin(b, RTM_NEWQDISC, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
    struct tcmsg *t = NLMSG_DATA(n);
    t->tcm_family = AF_UNSPEC;
    t->tcm_ifindex = ifindex;
    t->tcm_parent = parent;
    t->tcm_handle = handle;
    
    addattr_str(n, TCA_KIND, "sfq");
    struct my_tc_sfq_qopt opt = {0};
    opt.perturb_period = 1; // 1 second
    addattr_l(n, TCA_OPTIONS, &opt, sizeof(opt));
    batch_end(b, n);
}

void generate_deep_prio(int nl_fd, struct nl_batch *b, int ifindex, uint32_t parent, int level, int *handle_counter) {
    if (level == 0) return;
    
    uint32_t my_handle = TC_H_MAKE(*handle_counter << 16, 0);
    (*handle_counter)++;
    
    batch_add_prio(b, ifindex, parent, my_handle);
    if (b->offset > 512 * 1024) {
        batch_send_and_wait(nl_fd, b);
    }
    
    for (int i = 1; i <= 3; i++) {
        generate_deep_prio(nl_fd, b, ifindex, TC_H_MAKE(my_handle, i), level - 1, handle_counter);
    }
}

int del_qdisc_root(int fd, int ifindex) {
    struct {
        struct nlmsghdr n;
        struct tcmsg t;
    } req = {
        .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
        .n.nlmsg_type = RTM_DELQDISC,
        .n.nlmsg_seq = 999999,
        .t.tcm_family = AF_UNSPEC,
        .t.tcm_ifindex = ifindex,
        .t.tcm_parent = TC_H_ROOT,
        .t.tcm_handle = 0,
    };
    
    if (send(fd, &req, req.n.nlmsg_len, 0) < 0) return -1;
    
    char buf[8192];
    while (1) {
        ssize_t len = recv(fd, buf, sizeof(buf), 0);
        if (len < 0) {
            if (errno == EAGAIN || errno == EINTR) continue;
            return -1;
        }
        struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
        while (NLMSG_OK(nlh, len)) {
            if (nlh->nlmsg_type == NLMSG_ERROR && nlh->nlmsg_seq == 999999) {
                return 0;
            }
            nlh = NLMSG_NEXT(nlh, len);
        }
    }
    return 0;
}

int create_tun(const char *name) {
    int fd = open("/dev/net/tun", O_RDWR);
    if (fd < 0) {
        perror("open /dev/net/tun");
        return -1;
    }
    struct ifreq ifr = {0};
    ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, TUNSETIFF, (void *)&ifr) < 0) {
        perror("TUNSETIFF");
        close(fd);
        return -1;
    }
    return fd;
}

int bring_up(const char *name) {
    int fd = socket(AF_INET, SOCK_DGRAM, 0);
    if (fd < 0) return -1;
    struct ifreq ifr = {0};
    strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
    if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
    if (ioctl(fd, SIOCSIFFLAGS, &ifr) < 0) {
        close(fd);
        return -1;
    }
    close(fd);
    return 0;
}

void *racer(void *arg) {
    long id = (long)arg;
    char ifname[32];
    sprintf(ifname, "tun%ld", id);
    
    int tun_fd = create_tun(ifname);
    if (tun_fd < 0) {
        printf("[-] Failed to create %s\n", ifname);
        return NULL;
    }
    
    if (bring_up(ifname) < 0) {
        printf("[-] Failed to bring up %s\n", ifname);
        return NULL;
    }
    
    int ifindex = if_nametoindex(ifname);
    if (ifindex == 0) {
        printf("[-] Failed to get ifindex for %s\n", ifname);
        return NULL;
    }
    
    int nl_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
    if (nl_fd < 0) {
        perror("socket AF_NETLINK");
        return NULL;
    }
    int sndbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
    int rcvbuf = 8 * 1024 * 1024;
    setsockopt(nl_fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
    
    int sock = socket(AF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
    if (sock < 0) {
        perror("socket AF_PACKET");
        return NULL;
    }
    
    struct sockaddr_ll sall = {0};
    sall.sll_family = AF_PACKET;
    sall.sll_protocol = htons(ETH_P_IP);
    sall.sll_ifindex = ifindex;
    
    int prio = 1;
    if (setsockopt(sock, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)) < 0) {
        perror("setsockopt SO_PRIORITY");
        return NULL;
    }
    
    char pkt[64] = {0};
    struct iphdr *ip = (struct iphdr *)pkt;
    ip->version = 4;
    ip->ihl = 5;
    ip->tot_len = htons(40);
    ip->protocol = IPPROTO_UDP;
    ip->saddr = htonl(0x0A000001);
    ip->daddr = htonl(0x0A000002);
    
    struct nl_batch b;
    batch_init(&b, 2 * 1024 * 1024);
    
    printf("[+] Thread %ld starting race loop...\n", id);
    for (int iter = 0; iter < 30; iter++) {
        del_qdisc_root(nl_fd, ifindex);
        
        b.offset = 0;
        b.seq = 1;
        
        batch_add_prio(&b, ifindex, TC_H_ROOT, TC_H_MAKE(1 << 16, 0));
        
        int handle_counter = 2;
        // Depth 7 creates 1093 qdiscs per band. Total ~2200 qdiscs.
        // This artificially widens the destruction race window to tens of milliseconds.
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 1), 7, &handle_counter);
        generate_deep_prio(nl_fd, &b, ifindex, TC_H_MAKE(1 << 16, 2), 7, &handle_counter);
        batch_add_sfq(&b, ifindex, TC_H_MAKE(1 << 16, 3), TC_H_MAKE(handle_counter << 16, 0));
        
        if (batch_send_and_wait(nl_fd, &b) < 0) {
            printf("[-] batch_send_and_wait failed\n");
        }
        
        // Send packets to fill tun ring and leave some in sfq
        for (int i = 0; i < 1000; i++) {
            sendto(sock, pkt, 40, MSG_DONTWAIT, (struct sockaddr *)&sall, sizeof(sall));
        }
        
        // Sweep the sleep time to deterministically hit the race window
        // 960ms to 1018ms
        long sleep_us = 960000 + (iter * 2000);
        usleep(sleep_us);
        
        // Delete root qdisc
        del_qdisc_root(nl_fd, ifindex);
        
        // Wait a bit for timer to fire
        usleep(100000);
    }
    
    free(b.buf);
    close(sock);
    close(nl_fd);
    close(tun_fd);
    return NULL;
}

int main() {
    uid_t uid = getuid();
    gid_t gid = getgid();

    int res = unshare(CLONE_NEWUSER | CLONE_NEWNET);
    if (res < 0) {
        printf("[-] Failed to unshare: %s\n", strerror(errno));
        exit(1);
    }
    printf("[+] unshare successful.\n");

    FILE *f = fopen("/proc/self/uid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", uid);
        fclose(f);
    }
    f = fopen("/proc/self/setgroups", "w");
    if (f) {
        fprintf(f, "deny\n");
        fclose(f);
    }
    f = fopen("/proc/self/gid_map", "w");
    if (f) {
        fprintf(f, "0 %d 1\n", gid);
        fclose(f);
    }
    
    if (bring_up("lo") < 0) {
        printf("[-] Failed to bring up lo\n");
        exit(1);
    }
    printf("[+] lo brought up.\n");

    pthread_t th[4];
    for (long i = 0; i < 4; i++) {
        pthread_create(&th[i], NULL, racer, (void *)i);
    }
    for (int i = 0; i < 4; i++) {
        pthread_join(th[i], NULL);
    }
    
    sleep(1);
    printf("[+] Done.\n");
    return 0;
}
 Reproduced:true ReproducedBugTitle:WARNING in qdisc_tree_reduce_backlog ReproducedCrashReport:------------[ cut here ]------------
parentid != TC_H_ROOT
WARNING: net/sched/sch_api.c:797 at qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797, CPU#1: syz-executor144/5844
Modules linked in:
CPU: 1 UID: 0 PID: 5844 Comm: syz-executor144 Not tainted syzkaller #1 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:qdisc_tree_reduce_backlog+0x3fa/0x4c0 net/sched/sch_api.c:797
Code: 03 38 c1 0f 8c 45 ff ff ff 4c 89 e7 e8 7f b4 87 f8 e9 38 ff ff ff e8 55 a7 1a f8 eb 17 e8 4e a7 1a f8 eb 10 e8 47 a7 1a f8 90 <0f> 0b 90 eb 05 e8 3c a7 1a f8 e8 57 1e 07 02 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90000a08a08 EFLAGS: 00010246
RAX: ffffffff89aa8c29 RBX: 000000000000007f RCX: ffff888112af0000
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff89aa886b R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8eb63e60 R12: ffffc90000a08b80
R13: 0000000000010003 R14: 000000000000007f R15: ffff8881145f7800
FS:  00007fd4fa9f86c0(0000) GS:ffff8882e86f1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055621761df30 CR3: 0000000114674000 CR4: 0000000000352ef0
Call Trace:
 <IRQ>
 sfq_rehash net/sched/sch_sfq.c:601 [inline]
 sfq_perturbation+0x2028/0x2280 net/sched/sch_sfq.c:618
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0x103/0x170 kernel/time/timer.c:2406
 handle_softirqs+0x225/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:prio_reset+0x33/0x130 net/sched/sch_prio.c:136
Code: 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df e8 f0 e4 0c f8 4c 8d bb 80 02 00 00 4d 89 fe 49 c1 ee 03 43 0f b6 04 2e <84> c0 0f 85 c8 00 00 00 41 8b 2f 31 ff 89 ee e8 09 e9 0c f8 85 ed
RSP: 0018:ffffc90003aa7068 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff8881ec8de000 RCX: ffff888112af0000
RDX: 0000000000000000 RSI: ffffffff8c321360 RDI: ffff8881ec8de000
RBP: ffff8881ec867a01 R08: ffffffff9060b637 R09: 1ffffffff20c16c6
R10: dffffc0000000000 R11: ffffffff89b84e60 R12: 0000000000000001
R13: dffffc0000000000 R14: 1ffff1103d91bc50 R15: ffff8881ec8de280
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 prio_reset+0x9b/0x130 net/sched/sch_prio.c:137
 qdisc_reset+0xff/0x570 net/sched/sch_generic.c:1079
 __qdisc_destroy+0x120/0x470 net/sched/sch_generic.c:1118
 notify_and_destroy net/sched/sch_api.c:1066 [inline]
 qdisc_graft+0x1083/0x1600 net/sched/sch_api.c:1163
 __tc_get_qdisc net/sched/sch_api.c:1532 [inline]
 tc_get_qdisc+0xc0a/0x1250 net/sched/sch_api.c:1560
 rtnetlink_rcv_msg+0x7b9/0xc00 net/core/rtnetlink.c:7085
 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
 __sock_sendmsg net/socket.c:790 [inline]
 __sys_sendto+0x408/0x5a0 net/socket.c:2252
 __do_sys_sendto net/socket.c:2259 [inline]
 __se_sys_sendto net/socket.c:2255 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2255
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd4fc25c47e
Code: 08 0f 85 f5 e2 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
RSP: 002b:00007fd4fa9f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fd4fa9f86c0 RCX: 00007fd4fc25c47e
RDX: 0000000000000024 RSI: 00007fd4fa9f60c0 RDI: 0000000000000008
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4fa9f81a0
R13: 00007fd4fa9f8140 R14: 000000000000000c R15: 0000000000000008
 </TASK>
----------------
Code disassembly (best guess):
   0:	41 55                	push   %r13
   2:	41 54                	push   %r12
   4:	53                   	push   %rbx
   5:	48 89 fb             	mov    %rdi,%rbx
   8:	49 bd 00 00 00 00 00 	movabs $0xdffffc0000000000,%r13
   f:	fc ff df
  12:	e8 f0 e4 0c f8       	call   0xf80ce507
  17:	4c 8d bb 80 02 00 00 	lea    0x280(%rbx),%r15
  1e:	4d 89 fe             	mov    %r15,%r14
  21:	49 c1 ee 03          	shr    $0x3,%r14
  25:	43 0f b6 04 2e       	movzbl (%r14,%r13,1),%eax
* 2a:	84 c0                	test   %al,%al <-- trapping instruction
  2c:	0f 85 c8 00 00 00    	jne    0xfa
  32:	41 8b 2f             	mov    (%r15),%ebp
  35:	31 ff                	xor    %edi,%edi
  37:	89 ee                	mov    %ebp,%esi
  39:	e8 09 e9 0c f8       	call   0xf80ce947
  3e:	85 ed                	test   %ebp,%ebp
]

894/1 2026/08/15 19:48 action save-repro-c
0m Results:
map[]

LLM Calls Summary:
Total Calls Total Tokens Avg Tokens Total Duration (Seconds) Avg Duration (Seconds)
Tool Calls Summary:
Total Calls Total Duration (Seconds) Avg Duration (Seconds)