failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@10.128.0.103" "pwd"]: exit status 255 ssh: connect to host 10.128.0.103 port 22: Connection timed out Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[ssh-serialport.googleapis.com]:9600' (RSA) to the list of known hosts. serialport: Connected to syzkaller.us-central1-c.ci2-linux-5-15-kasan-perf-test-0 port 1 (session ID: 30434d41e3129e7526901b00497444323c863a58004f93ee78172e4f1cf619e2, active connections: 1). SeaBIOS (version 1.8.2-google) Total RAM Size = 0x0000000200000000 = 8192 MiB CPUs found: 2 Max CPUs supported: 2 SeaBIOS (version 1.8.2-google) Machine UUID 8836b17a-9757-1595-0fb6-7f349bc96d88 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f2860: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Sending Seabios boot VM event. Booting from Hard Disk 0... [ 0.000000][ T0] Linux version 5.15.135-syzkaller (syzkaller@syzkaller) (Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 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 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] usable [ 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] ********************************************************** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** This system shows unhashed kernel memory addresses ** [ 0.000000][ T0] ** via the console, logs, and other interfaces. This ** [ 0.000000][ T0] ** might reduce the security of your system. ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** If you see this message and you are not debugging ** [ 0.000000][ T0] ** the kernel, report this immediately to your system ** [ 0.000000][ T0] ** administrator! ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ********************************************************** [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] SMBIOS 2.4 present. [ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000][ T0] kvm-clock: cpu 0, msr f5ce001, primary cpu clock [ 0.000009][ T0] kvm-clock: using sched offset of 4350163363 cycles [ 0.001459][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.004181][ T0] tsc: Detected 2199.998 MHz processor [ 0.008244][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.009423][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.010676][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.017868][ T0] found SMP MP-table at [mem 0x000f2b20-0x000f2b2f] [ 0.019066][ T0] Using GB pages for direct mapping [ 0.021560][ T0] ACPI: Early table checksum verification disabled [ 0.022632][ T0] ACPI: RSDP 0x00000000000F28A0 000014 (v00 Google) [ 0.024719][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.026289][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.027599][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.030207][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.031457][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.032734][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.034300][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.035626][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.037178][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.039074][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423] [ 0.040715][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323] [ 0.041833][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.043279][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.044621][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27] [ 0.046201][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25] [ 0.047850][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf] [ 0.049596][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57] [ 0.052077][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.052889][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.055547][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.058482][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.061116][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.063214][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.066773][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.070166][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000013fffffff] (5120MB) [ 0.072447][ T0] Faking node 1 at [mem 0x0000000140000000-0x000000023fffffff] (4096MB) [ 0.074407][ T0] NODE_DATA(0) allocated [mem 0x13fffb000-0x13fffffff] [ 0.077297][ T0] NODE_DATA(1) allocated [mem 0x23fff8000-0x23fffcfff] [ 0.119535][ T0] Zone ranges: [ 0.120439][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.121926][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.124081][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.125276][ T0] Device empty [ 0.125818][ T0] Movable zone start for each node [ 0.126495][ T0] Early memory node ranges [ 0.127079][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.128033][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.128978][ T0] node 0: [mem 0x0000000100000000-0x000000013fffffff] [ 0.129913][ T0] node 1: [mem 0x0000000140000000-0x000000023fffffff] [ 0.130909][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000013fffffff] [ 0.132030][ T0] Initmem setup node 1 [mem 0x0000000140000000-0x000000023fffffff] [ 0.133152][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.133338][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.182725][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.556939][ T0] kasan: KernelAddressSanitizer initialized [ 0.560833][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.561756][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.562841][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.565823][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.566975][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.568319][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.569585][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.570784][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.571906][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.573066][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.574523][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.576108][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.577459][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.579370][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.580831][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.582455][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.583805][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.584806][ T0] Booting paravirtualized kernel on KVM [ 0.586058][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.672645][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:2 [ 0.674944][ T0] percpu: Embedded 68 pages/cpu s241544 r8192 d28792 u1048576 [ 0.677095][ T0] kvm-guest: stealtime: cpu 0, msr b9a27400 [ 0.678542][ T0] kvm-guest: PV spinlocks enabled [ 0.679798][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.682593][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2064125 [ 0.684687][ T0] Policy zone: Normal [ 0.686057][ T0] Kernel command line: 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=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 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=8 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.712441][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. [ 0.716319][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 1.689308][ T0] Memory: 6827972K/8388204K available (153632K kernel code, 24930K rwdata, 29396K rodata, 3572K init, 36140K bss, 1559976K reserved, 0K cma-reserved) [ 1.694935][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.699766][ T0] Running RCU self tests [ 1.700773][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.702660][ T0] rcu: RCU lockdep checking is enabled. [ 1.704545][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.706404][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 1.708383][ T0] rcu: RCU debug extended QS entry/exit. [ 1.710258][ T0] All grace periods are expedited (rcu_expedited). [ 1.712909][ T0] Trampoline variant of Tasks RCU enabled. [ 1.714473][ T0] Tracing variant of Tasks RCU enabled. [ 1.716289][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.718800][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.752255][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.754995][ T0] random: crng init done [ 1.757417][ T0] Console: colour VGA+ 80x25 [ 1.759007][ T0] printk: console [ttyS0] enabled [ 1.759007][ T0] printk: console [ttyS0] enabled [ 1.761212][ T0] printk: bootconsole [earlyser0] disabled [ 1.761212][ T0] printk: bootconsole [earlyser0] disabled [ 1.765116][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.768004][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.769354][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.771152][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.773274][ T0] ... CLASSHASH_SIZE: 4096 [ 1.775119][ T0] ... MAX_LOCKDEP_ENTRIES: 131072 [ 1.776759][ T0] ... MAX_LOCKDEP_CHAINS: 262144 [ 1.778080][ T0] ... CHAINHASH_SIZE: 131072 [ 1.779833][ T0] memory used by lock dependency info: 20657 kB [ 1.782253][ T0] memory used for stack traces: 8320 kB [ 1.783429][ T0] per task-struct memory footprint: 1920 bytes [ 1.784852][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.788428][ T0] ACPI: Core revision 20210730 [ 1.790885][ T0] APIC: Switch to symmetric I/O mode setup [ 1.793766][ T0] x2apic enabled [ 1.799249][ T0] Switched APIC routing to physical x2apic. [ 1.808750][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.811040][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns [ 1.814503][ T0] Calibrating delay loop (skipped) preset value.. 4399.99 BogoMIPS (lpj=21999980) [ 1.818274][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.820224][ T0] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [ 1.824546][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.827282][ T0] Spectre V2 : Mitigation: IBRS [ 1.829110][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch [ 1.834505][ T0] Spectre V2 : Spectre v2 / SpectreRSB : Filling RSB on VMEXIT [ 1.837959][ T0] RETBleed: Mitigation: IBRS [ 1.839425][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.843257][ T0] Spectre V2 : User space: Mitigation: STIBP via seccomp and prctl [ 1.844587][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.847767][ T0] MDS: Mitigation: Clear CPU buffers [ 1.849991][ T0] TAA: Mitigation: Clear CPU buffers [ 1.851261][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.854585][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 1.857929][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 1.860186][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 1.864516][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 1.867561][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 1.876510][ T0] Freeing SMP alternatives memory: 124K [ 1.878967][ T0] pid_max: default: 32768 minimum: 301 [ 1.881612][ T0] LSM: Security Framework initializing [ 1.883962][ T0] landlock: Up and running. [ 1.884499][ T0] Yama: becoming mindful. [ 1.886481][ T0] TOMOYO Linux initialized [ 1.889434][ T0] AppArmor: AppArmor initialized [ 1.891748][ T0] LSM support for eBPF active [ 1.905521][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 1.916387][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 1.919793][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.923970][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.052277][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 2.054478][ T1] Running RCU-tasks wait API self tests [ 2.154812][ T1] Performance Events: unsupported p6 CPU model 79 no PMU driver, software events only. [ 2.159013][ T1] signal: max sigframe size: 1776 [ 2.161682][ T1] rcu: Hierarchical SRCU implementation. [ 2.169131][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.172562][ T1] smp: Bringing up secondary CPUs ... [ 2.174650][ T12] ------------[ cut here ]------------ [ 2.176764][ T12] WARNING: CPU: 0 PID: 12 at kernel/rcu/tasks.h:958 trc_inspect_reader+0x183/0x250 [ 2.180194][ T12] Modules linked in: [ 2.181701][ T12] CPU: 0 PID: 12 Comm: rcu_tasks_trace Not tainted 5.15.135-syzkaller #0 [ 2.184478][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 2.184478][ T12] RIP: 0010:trc_inspect_reader+0x183/0x250 [ 2.184478][ T12] Code: 84 c0 0f 85 ca 00 00 00 41 c6 06 01 31 ed 85 ed 0f 94 c0 5b 41 5c 41 5e 41 5f 5d c3 0f 0b e9 bd fe ff ff 0f 0b e9 7c ff ff ff <0f> 0b eb aa 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 96 fe ff ff 48 89 [ 2.184478][ T12] RSP: 0000:ffffc90000d17b10 EFLAGS: 00010046 [ 2.184478][ T12] RAX: 0000000000000000 RBX: ffff88813fe6802c RCX: ffffffff816a78d2 [ 2.184478][ T12] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88813fe68000 [ 2.184478][ T12] RBP: ffffc90000d17bf0 R08: dffffc0000000000 R09: fffffbfff1bc7156 [ 2.184478][ T12] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88813fe68000 [ 2.184478][ T12] R13: ffff88813fe68068 R14: ffff88813fe68000 R15: dffffc0000000000 [ 2.184478][ T12] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 2.184478][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.184478][ T12] CR2: ffff88823ffff000 CR3: 000000000c68e000 CR4: 00000000003506f0 [ 2.184478][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2.184478][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2.184478][ T12] Call Trace: [ 2.184478][ T12] <TASK> [ 2.184478][ T12] ? __warn+0x15b/0x300 [ 2.184478][ T12] ? trc_inspect_reader+0x183/0x250 [ 2.184478][ T12] ? report_bug+0x1b7/0x2e0 [ 2.184478][ T12] ? handle_bug+0x3d/0x70 [ 2.184478][ T12] ? exc_invalid_op+0x16/0x40 [ 2.184478][ T12] ? asm_exc_invalid_op+0x16/0x20 [ 2.184478][ T12] ? trc_inspect_reader+0x52/0x250 [ 2.184478][ T12] ? trc_inspect_reader+0x183/0x250 [ 2.184478][ T12] try_invoke_on_locked_down_task+0x1c2/0x450 [ 2.184478][ T12] ? trc_wait_for_one_reader+0x700/0x700 [ 2.184478][ T12] ? cpus_share_cache+0x110/0x110 [ 2.184478][ T12] ? rcu_lock_acquire+0x30/0x30 [ 2.184478][ T12] ? __lock_acquire+0x1ff0/0x1ff0 [ 2.184478][ T12] trc_wait_for_one_reader+0xa2/0x700 [ 2.184478][ T12] rcu_tasks_trace_postscan+0xd1/0x190 [ 2.184478][ T12] rcu_tasks_wait_gp+0x48a/0x9d0 [ 2.184478][ T12] ? test_callback+0x20/0x20 [ 2.184478][ T12] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 2.184478][ T12] ? _raw_spin_unlock+0x40/0x40 [ 2.184478][ T12] ? swake_up_locked+0x64/0x110 [ 2.184478][ T12] ? complete+0x56/0xa0 [ 2.184478][ T12] rcu_tasks_kthread+0x2d7/0x640 [ 2.184478][ T12] ? rcu_tasks_postgp+0x10/0x10 [ 2.184478][ T12] ? init_wait_entry+0xd0/0xd0 [ 2.184478][ T12] ? __kthread_parkme+0x15c/0x1c0 [ 2.184478][ T12] kthread+0x3f6/0x4f0 [ 2.184478][ T12] ? rcu_tasks_postgp+0x10/0x10 [ 2.184478][ T12] ? kthread_blkcg+0xd0/0xd0 [ 2.184478][ T12] ret_from_fork+0x1f/0x30 [ 2.184478][ T12] </TASK> [ 2.184478][ T12] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 2.184478][ T12] CPU: 0 PID: 12 Comm: rcu_tasks_trace Not tainted 5.15.135-syzkaller #0 [ 2.184478][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 2.184478][ T12] Call Trace: [ 2.184478][ T12] <TASK> [ 2.184478][ T12] dump_stack_lvl+0x1e3/0x2cb [ 2.184478][ T12] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 2.184478][ T12] ? panic+0x84d/0x84d [ 2.184478][ T12] ? trc_inspect_reader+0x180/0x250 [ 2.184478][ T12] ? trc_inspect_reader+0x180/0x250 [ 2.184478][ T12] panic+0x318/0x84d [ 2.184478][ T12] ? __warn+0x16a/0x300 [ 2.184478][ T12] ? fb_is_primary_device+0xcc/0xcc [ 2.184478][ T12] ? ret_from_fork+0x1f/0x30 [ 2.184478][ T12] ? trc_inspect_reader+0x183/0x250 [ 2.184478][ T12] __warn+0x2b2/0x300 [ 2.184478][ T12] ? trc_inspect_reader+0x183/0x250 [ 2.184478][ T12] report_bug+0x1b7/0x2e0 [ 2.184478][ T12] handle_bug+0x3d/0x70 [ 2.184478][ T12] exc_invalid_op+0x16/0x40 [ 2.184478][ T12] asm_exc_invalid_op+0x16/0x20 [ 2.184478][ T12] RIP: 0010:trc_inspect_reader+0x183/0x250 [ 2.184478][ T12] Code: 84 c0 0f 85 ca 00 00 00 41 c6 06 01 31 ed 85 ed 0f 94 c0 5b 41 5c 41 5e 41 5f 5d c3 0f 0b e9 bd fe ff ff 0f 0b e9 7c ff ff ff <0f> 0b eb aa 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 96 fe ff ff 48 89 [ 2.184478][ T12] RSP: 0000:ffffc90000d17b10 EFLAGS: 00010046 [ 2.184478][ T12] RAX: 0000000000000000 RBX: ffff88813fe6802c RCX: ffffffff816a78d2 [ 2.184478][ T12] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88813fe68000 [ 2.184478][ T12] RBP: ffffc90000d17bf0 R08: dffffc0000000000 R09: fffffbfff1bc7156 [ 2.184478][ T12] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88813fe68000 [ 2.184478][ T12] R13: ffff88813fe68068 R14: ffff88813fe68000 R15: dffffc0000000000 [ 2.184478][ T12] ? trc_inspect_reader+0x52/0x250 [ 2.184478][ T12] try_invoke_on_locked_down_task+0x1c2/0x450 [ 2.184478][ T12] ? trc_wait_for_one_reader+0x700/0x700 [ 2.184478][ T12] ? cpus_share_cache+0x110/0x110 [ 2.184478][ T12] ? rcu_lock_acquire+0x30/0x30 [ 2.184478][ T12] ? __lock_acquire+0x1ff0/0x1ff0 [ 2.184478][ T12] trc_wait_for_one_reader+0xa2/0x700 [ 2.184478][ T12] rcu_tasks_trace_postscan+0xd1/0x190 [ 2.184478][ T12] rcu_tasks_wait_gp+0x48a/0x9d0 [ 2.184478][ T12] ? test_callback+0x20/0x20 [ 2.184478][ T12] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 2.184478][ T12] ? _raw_spin_unlock+0x40/0x40 [ 2.184478][ T12] ? swake_up_locked+0x64/0x110 [ 2.184478][ T12] ? complete+0x56/0xa0 [ 2.184478][ T12] rcu_tasks_kthread+0x2d7/0x640 [ 2.184478][ T12] ? rcu_tasks_postgp+0x10/0x10 [ 2.184478][ T12] ? init_wait_entry+0xd0/0xd0 [ 2.184478][ T12] ? __kthread_parkme+0x15c/0x1c0 [ 2.184478][ T12] kthread+0x3f6/0x4f0 [ 2.184478][ T12] ? rcu_tasks_postgp+0x10/0x10 [ 2.184478][ T12] ? kthread_blkcg+0xd0/0xd0 [ 2.184478][ T12] ret_from_fork+0x1f/0x30 [ 2.184478][ T12] </TASK> [ 2.184478][ T12] Rebooting in 86400 seconds..