[ 0.000000][ T0] Linux version 5.12.0-rc2-syzkaller (syzkaller@syzkaller) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: earlyprintk=serial oops=panic nmi_watchdog=panic panic_on_warn=1 panic=1 ftrace_dump_on_oops=orig_cpu vsyscall=native net.ifnames=0 biosdevname=0 root=/dev/sda console=ttyS0 kvm-intel.nested=1 kvm-intel.unrestricted_guest=1 kvm-intel.vmm_exclusive=1 kvm-intel.fasteoi=1 kvm-intel.ept=1 kvm-intel.flexpriority=1 kvm-intel.vpid=1 kvm-intel.emulate_invalid_guest_state=1 kvm-intel.eptad=1 kvm-intel.enable_shadow_vmcs=1 kvm-intel.pml=1 kvm-intel.enable_apicv=1 root=/dev/sda1 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000][ T0] BIOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000007ffdd000-0x000000007fffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] SMBIOS 2.8 present. [ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000][ T0] kvm-clock: cpu 0, msr f3a9001, primary cpu clock [ 0.000002][ T0] kvm-clock: using sched offset of 4054158957 cycles [ 0.013023][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.051833][ T0] tsc: Detected 2300.000 MHz processor [ 0.077791][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.091050][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.121714][ T0] found SMP MP-table at [mem 0x000f5c80-0x000f5c8f] [ 0.135208][ T0] Using GB pages for direct mapping [ 0.146776][ T0] ACPI: Early table checksum verification disabled [ 0.156996][ T0] ACPI: RSDP 0x00000000000F5AD0 000014 (v00 BOCHS ) [ 0.167345][ T0] ACPI: RSDT 0x000000007FFE1F5B 000044 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.182636][ T0] ACPI: FACP 0x000000007FFE17ED 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.196978][ T0] ACPI: DSDT 0x000000007FFDF040 0027AD (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.213141][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.222394][ T0] ACPI: APIC 0x000000007FFE18E1 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.240101][ T0] ACPI: HPET 0x000000007FFE1991 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.259166][ T0] ACPI: SRAT 0x000000007FFE19C9 000150 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.277505][ T0] ACPI: MCFG 0x000000007FFE1B19 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.295958][ T0] ACPI: SSDT 0x000000007FFE1B55 0002FE (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.311969][ T0] ACPI: NFIT 0x000000007FFE1E53 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.327311][ T0] ACPI: WAET 0x000000007FFE1F33 000028 (v01 BOCHS BXPCWAET 00000001 BXPC 00000001) [ 0.344800][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.353876][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.362892][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.371919][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.381485][ T0] SRAT: PXM 0 -> APIC 0x04 -> Node 0 [ 0.392413][ T0] SRAT: PXM 0 -> APIC 0x05 -> Node 0 [ 0.403310][ T0] SRAT: PXM 0 -> APIC 0x06 -> Node 0 [ 0.413604][ T0] SRAT: PXM 0 -> APIC 0x07 -> Node 0 [ 0.421824][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.434311][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x7fffffff] [ 0.445923][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x103ffffff] non-volatile [ 0.460558][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x57fffffff] hotplug [ 0.475568][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x7ffdcfff] -> [mem 0x00000000-0x7ffdcfff] [ 0.502387][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.522977][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.545148][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.575930][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 0.693366][ T0] Zone ranges: [ 0.699468][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.713361][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 0.729554][ T0] Normal empty [ 0.737125][ T0] Device empty [ 0.743945][ T0] Movable zone start for each node [ 0.753994][ T0] Early memory node ranges [ 0.763347][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.779457][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 0.797143][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 0.813157][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 0.813183][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 0.850938][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 2.279528][ T0] kasan: KernelAddressSanitizer initialized [ 2.304072][ T0] ACPI: PM-Timer IO Port: 0x608 [ 2.313689][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 2.327689][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 2.346411][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 2.362064][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 2.373499][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 2.387846][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 2.402577][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 2.415619][ T0] Using ACPI (MADT) for SMP configuration information [ 2.427696][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 2.436580][ T0] TSC deadline timer available [ 2.444264][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 2.456294][ T0] kvm-guest: KVM setup pv remote TLB flush [ 2.468192][ T0] kvm-guest: setup PV sched yield [ 2.477375][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 2.492788][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 2.507488][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 2.523948][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 2.539801][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 2.553478][ T0] Booting paravirtualized kernel on KVM [ 2.564438][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.657925][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:2 [ 2.686742][ T0] percpu: Embedded 64 pages/cpu s223880 r8192 d30072 u1048576 [ 2.698582][ T0] kvm-guest: KVM setup async PF for cpu 0 [ 2.707684][ T0] kvm-guest: stealtime: cpu 0, msr 2ca1f440 [ 2.717318][ T0] kvm-guest: PV spinlocks enabled [ 2.726962][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 2.743311][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 2.760341][ T0] Policy zone: DMA32 [ 2.768692][ T0] Kernel command line: earlyprintk=serial oops=panic nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb kvm-intel.nested=1 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 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 rcupdate.rcu_expedited=1 root=/dev/sda console=ttyS0 vsyscall=native watchdog_thresh=55 workqueue.watchdog_thresh=140 panic_on_warn=1 earlyprintk=serial oops=panic nmi_watchdog=panic panic_on_warn=1 panic=1 ftrace_dump_on_oops=orig_cpu vsyscall=native net.ifnames=0 biosdevname=0 root=/dev/sda console=ttyS0 kvm-intel.nested=1 kvm-intel.unrestricted_guest=1 kvm-intel.vmm_exclusive=1 kvm-intel.fasteoi=1 kvm-intel.ept=1 kvm-intel.flexpriority=1 kvm-intel.vpid=1 [ 2.782441][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 3.549545][ T0] Memory: 1441376K/2096620K available (135201K kernel code, 33365K rwdata, 38300K rodata, 3868K init, 16904K bss, 654988K reserved, 0K cma-reserved) [ 3.590685][ T0] Running RCU self tests [ 3.601022][ T0] rcu: Preemptible hierarchical RCU implementation. [ 3.614391][ T0] rcu: RCU lockdep checking is enabled. [ 3.626443][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 3.641223][ T0] rcu: RCU debug extended QS entry/exit. [ 3.651426][ T0] All grace periods are expedited (rcu_expedited). [ 3.663721][ T0] Trampoline variant of Tasks RCU enabled. [ 3.674476][ T0] Tracing variant of Tasks RCU enabled. [ 3.684811][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 3.748528][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 3.765324][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0x(____ptrval____)-0x(____ptrval____) [ 3.789126][ T0] random: crng done (trusting CPU's manufacturer) [ 3.902603][ T0] Console: colour VGA+ 80x25 [ 3.911634][ T0] printk: console [ttyS0] enabled [ 3.911634][ T0] printk: console [ttyS0] enabled [ 3.929133][ T0] printk: bootconsole [earlyser0] disabled [ 3.929133][ T0] printk: bootconsole [earlyser0] disabled [ 3.947509][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 3.962487][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 3.972741][ T0] ... MAX_LOCK_DEPTH: 48 [ 3.981006][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 3.987623][ T0] ... CLASSHASH_SIZE: 4096 [ 3.995481][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 4.005376][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 4.015134][ T0] ... CHAINHASH_SIZE: 32768 [ 4.025802][ T0] memory used by lock dependency info: 6365 kB [ 4.039802][ T0] memory used for stack traces: 4224 kB [ 4.049878][ T0] per task-struct memory footprint: 1920 bytes [ 4.061881][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 4.082531][ T0] ACPI: Core revision 20210105 [ 4.093607][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 4.115585][ T0] APIC: Switch to symmetric I/O mode setup [ 4.127126][ T0] kvm-guest: setup PV IPIs [ 4.158313][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 4.172598][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 4.195611][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 4.205610][ T0] pid_max: default: 32768 minimum: 301 [ 4.226173][ T0] LSM: Security Framework initializing [ 4.236100][ T0] Yama: becoming mindful. [ 4.245742][ T0] TOMOYO Linux initialized [ 4.255132][ T0] SELinux: Initializing. [ 4.278360][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 4.291192][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 4.296305][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 4.305832][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 4.336057][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 4.355744][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 4.365607][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 4.375752][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 4.385691][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 4.385790][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 4.405629][ T0] MDS: Mitigation: Clear CPU buffers [ 4.426438][ T0] Freeing SMP alternatives memory: 104K [ 4.438333][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 4.453990][ T1] Running RCU-tasks wait API self tests [ 4.575968][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 4.587890][ T1] rcu: Hierarchical SRCU implementation. [ 4.595864][ T13] Callback from call_rcu_tasks_trace() invoked. [ 4.613078][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 4.618535][ T1] smp: Bringing up secondary CPUs ... [ 4.634742][ T1] x86: Booting SMP configuration: [ 4.635831][ T1] .... node #0, CPUs: #1 [ 0.400817][ T0] kvm-clock: cpu 1, msr f3a9041, secondary cpu clock [ 4.669932][ T18] kvm-guest: KVM setup async PF for cpu 1 [ 4.675581][ T18] kvm-guest: stealtime: cpu 1, msr 2cb1f440 [ 4.695916][ T1] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. [ 4.719026][ T1] #2 [ 0.400817][ T0] kvm-clock: cpu 2, msr f3a9081, secondary cpu clock [ 4.748496][ T23] kvm-guest: KVM setup async PF for cpu 2 [ 4.755581][ T23] kvm-guest: stealtime: cpu 2, msr 2cc1f440 [ 4.775574][ T1] #3 [ 0.400817][ T0] kvm-clock: cpu 3, msr f3a90c1, secondary cpu clock [ 4.800967][ T28] kvm-guest: KVM setup async PF for cpu 3 [ 4.805042][ T28] kvm-guest: stealtime: cpu 3, msr 2cd1f440 [ 4.815788][ T12] Callback from call_rcu_tasks() invoked. [ 4.834857][ T1] smp: Brought up 2 nodes, 4 CPUs [ 4.835706][ T1] smpboot: Max logical packages: 2 [ 4.843659][ T1] smpboot: Total of 4 processors activated (18400.00 BogoMIPS) [ 4.858552][ T1] devtmpfs: initialized [ 4.867510][ T1] x86/mm: Memory block size: 128MB [ 4.925792][ T37] kworker/u17:0 (37) used greatest stack depth: 27520 bytes left [ 4.940677][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 4.956942][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 4.990513][ T1] PM: RTC time: 01:55:32, date: 2021-03-10 [ 5.012193][ T1] NET: Registered protocol family 16 [ 5.026191][ T1] audit: initializing netlink subsys (disabled) [ 5.037158][ T51] audit: type=2000 audit(1615341332.516:1): state=initialized audit_enabled=0 res=1 [ 5.045793][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 5.056586][ T1] thermal_sys: Registered thermal governor 'user_space' [ 5.075859][ T1] cpuidle: using governor menu [ 5.104110][ T1] NET: Registered protocol family 42 [ 5.115068][ T1] ACPI: bus type PCI registered [ 5.130980][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 5.155680][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 5.327694][ T1] PCI: Using configuration type 1 for base access [ 5.397240][ T113] kworker/u17:3 (113) used greatest stack depth: 27512 bytes left [ 5.415864][ T120] ------------[ cut here ]------------ [ 5.445707][ T120] raw_local_irq_restore() called with IRQs enabled [ 5.465793][ T120] WARNING: CPU: 2 PID: 120 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x1d/0x20 [ 5.495699][ T120] Modules linked in: [ 5.503018][ T311] kworker/u17:4 (311) used greatest stack depth: 27384 bytes left [ 5.504398][ T120] CPU: 2 PID: 120 Comm: kworker/u17:3 Not tainted 5.12.0-rc2-syzkaller #0 [ 5.535779][ T120] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 5.558080][ T120] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 5.581325][ T120] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d 11 d1 ad 04 00 74 01 c3 48 c7 c7 20 79 6b 89 c6 05 00 d1 ad 04 01 e8 75 5b be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 5.635706][ T120] RSP: 0000:ffffc900009e7c58 EFLAGS: 00010282 [ 5.645581][ T120] RAX: 0000000000000000 RBX: ffffffff8be25ee0 RCX: 0000000000000000 [ 5.655702][ T120] RDX: ffff888012b16180 RSI: ffffffff815b4435 RDI: fffff5200013cf7d [ 5.675791][ T120] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 5.700184][ T120] R10: ffffffff815ad19e R11: 0000000000000000 R12: 0000000000000003 [ 5.715698][ T120] R13: fffffbfff17c4bdc R14: 0000000000000001 R15: ffff88802cc36000 [ 5.735745][ T120] FS: 0000000000000000(0000) GS:ffff88802cc00000(0000) knlGS:0000000000000000 [ 5.765842][ T120] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.788628][ T120] CR2: 0000000000000000 CR3: 000000000bc8e000 CR4: 0000000000150ee0 [ 5.805725][ T120] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.829052][ T120] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.855671][ T120] Call Trace: [ 5.865686][ T120] kvm_wait+0xc9/0xe0 [ 5.875734][ T120] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 5.895828][ T120] ? pv_hash+0x100/0x100 [ 5.905674][ T120] ? lock_release+0x720/0x720 [ 5.918855][ T120] do_raw_spin_lock+0x200/0x2b0 [ 5.935910][ T120] ? rwlock_bug.part.0+0x90/0x90 [ 5.945671][ T120] do_exit+0x1d05/0x2a60 [ 5.964878][ T120] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 5.978644][ T120] ? mm_update_next_owner+0x7a0/0x7a0 [ 5.990621][ T120] ? kfree+0x1d7/0x2b0 [ 6.005722][ T120] ? lockdep_hardirqs_on+0x79/0x100 [ 6.019412][ T120] call_usermodehelper_exec_async+0x413/0x580 [ 6.038332][ T120] ? umh_complete+0x90/0x90 [ 6.045929][ T120] ret_from_fork+0x1f/0x30 [ 6.065875][ T120] Kernel panic - not syncing: panic_on_warn set ... [ 6.076964][ T120] CPU: 2 PID: 120 Comm: kworker/u17:3 Not tainted 5.12.0-rc2-syzkaller #0 [ 6.097426][ T120] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 [ 6.125725][ T120] Call Trace: [ 6.125808][ T120] dump_stack+0x141/0x1d7 [ 6.146020][ T120] panic+0x306/0x73d [ 6.146020][ T120] ? __warn_printk+0xf3/0xf3 [ 6.162263][ T120] ? __warn.cold+0x1a/0x44 [ 6.162263][ T120] ? warn_bogus_irq_restore+0x1d/0x20 [ 6.185723][ T120] __warn.cold+0x35/0x44 [ 6.185723][ T120] ? wake_up_klogd.part.0+0x8e/0xd0 [ 6.212218][ T120] ? warn_bogus_irq_restore+0x1d/0x20 [ 6.241055][ T120] report_bug+0x1bd/0x210 [ 6.255895][ T120] handle_bug+0x3c/0x60 [ 6.255895][ T120] exc_invalid_op+0x14/0x40 [ 6.278098][ T120] asm_exc_invalid_op+0x12/0x20 [ 6.278098][ T120] RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 [ 6.309676][ T120] Code: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d 11 d1 ad 04 00 74 01 c3 48 c7 c7 20 79 6b 89 c6 05 00 d1 ad 04 01 e8 75 5b be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 [ 6.373780][ T120] RSP: 0000:ffffc900009e7c58 EFLAGS: 00010282 [ 6.373780][ T120] RAX: 0000000000000000 RBX: ffffffff8be25ee0 RCX: 0000000000000000 [ 6.404875][ T120] RDX: ffff888012b16180 RSI: ffffffff815b4435 RDI: fffff5200013cf7d [ 6.435771][ T120] RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000001 [ 6.460842][ T120] R10: ffffffff815ad19e R11: 0000000000000000 R12: 0000000000000003 [ 6.476087][ T120] R13: fffffbfff17c4bdc R14: 0000000000000001 R15: ffff88802cc36000 [ 6.476087][ T120] ? wake_up_klogd.part.0+0x8e/0xd0 [ 6.510322][ T120] ? vprintk_func+0x95/0x1e0 [ 6.514121][ T120] ? warn_bogus_irq_restore+0x1d/0x20 [ 6.535734][ T120] kvm_wait+0xc9/0xe0 [ 6.535734][ T120] __pv_queued_spin_lock_slowpath+0x8b8/0xb40 [ 6.555734][ T120] ? pv_hash+0x100/0x100 [ 6.568824][ T120] ? lock_release+0x720/0x720 [ 6.568824][ T120] do_raw_spin_lock+0x200/0x2b0 [ 6.585758][ T120] ? rwlock_bug.part.0+0x90/0x90 [ 6.585758][ T120] do_exit+0x1d05/0x2a60 [ 6.612531][ T120] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 6.625688][ T120] ? mm_update_next_owner+0x7a0/0x7a0 [ 6.635823][ T120] ? kfree+0x1d7/0x2b0 [ 6.636131][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 6.645765][ T120] ? lockdep_hardirqs_on+0x79/0x100 [ 6.645765][ T120] call_usermodehelper_exec_async+0x413/0x580 [ 6.645765][ T120] ? umh_complete+0x90/0x90 [ 6.675789][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 6.685687][ T120] ret_from_fork+0x1f/0x30 [ 6.685687][ T120] Dumping ftrace buffer: [ 6.685687][ T120] (ftrace buffer empty) [ 6.685687][ T120] Rebooting in 1 seconds.. [ 6.685687][ T120] ACPI MEMORY or I/O RESET_REG.