./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor751199114 <...> Warning: Permanently added '10.128.0.247' (ED25519) to the list of known hosts. execve("./syz-executor751199114", ["./syz-executor751199114"], 0x7ffcd884e4f0 /* 10 vars */) = 0 brk(NULL) = 0x555556083000 brk(0x555556083d00) = 0x555556083d00 arch_prctl(ARCH_SET_FS, 0x555556083380) = 0 set_tid_address(0x555556083650) = 5053 set_robust_list(0x555556083660, 24) = 0 rseq(0x555556083ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor751199114", 4096) = 27 getrandom("\x80\xae\xea\xfb\xff\x31\x1d\x23", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556083d00 brk(0x5555560a4d00) = 0x5555560a4d00 brk(0x5555560a5000) = 0x5555560a5000 mprotect(0x7f360bc31000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5054 attached , child_tidptr=0x555556083650) = 5054 [pid 5054] set_robust_list(0x555556083660, 24) = 0 [pid 5054] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5054] setsid() = 1 [pid 5054] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5054] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5054] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5054] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5054] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5054] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5054] unshare(CLONE_NEWNS) = 0 [pid 5054] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5054] unshare(CLONE_NEWIPC) = 0 [pid 5054] unshare(CLONE_NEWCGROUP) = 0 [pid 5054] unshare(CLONE_NEWUTS) = 0 [pid 5054] unshare(CLONE_SYSVSEM) = 0 [pid 5054] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5054] write(3, "16777216", 8) = 8 [pid 5054] close(3) = 0 [pid 5054] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5054] write(3, "536870912", 9) = 9 [pid 5054] close(3) = 0 [pid 5054] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5054] write(3, "1024", 4) = 4 [pid 5054] close(3) = 0 [pid 5054] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5054] write(3, "8192", 4) = 4 [pid 5054] close(3) = 0 [pid 5054] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5054] write(3, "1024", 4) = 4 [pid 5054] close(3) = 0 [pid 5054] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5054] write(3, "1024", 4) = 4 [pid 5054] close(3) = 0 [pid 5054] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5054] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5054] close(3) = 0 [pid 5054] getpid() = 1 [pid 5054] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5057] set_robust_list(0x555556083660, 24 [pid 5054] <... clone resumed>, child_tidptr=0x555556083650) = 2 [pid 5057] <... set_robust_list resumed>) = 0 [pid 5057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5057] setpgid(0, 0) = 0 [pid 5057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5057] write(3, "1000", 4) = 4 [pid 5057] close(3) = 0 [pid 5057] openat(AT_FDCWD, "/dev/bus/usb/009/001", O_WRONLY|O_TRUNC|O_NONBLOCK|O_NOFOLLOW) = 3 [pid 5057] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5057] openat(AT_FDCWD, "/sys/devices/platform/vhci_hcd.0/attach", O_WRONLY|O_CLOEXEC) = 6 [pid 5057] write(6, "0 4 0 2", 7) = 7 [pid 5057] close(6) = 0 [ 59.207470][ T5057] vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(4) [ 59.214066][ T5057] vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) [ 59.222650][ T5057] vhci_hcd vhci_hcd.0: Device attached [ 59.515051][ T8] vhci_hcd: vhci_device speed not set [ 59.584657][ T8] usb 9-1: new full-speed USB device number 2 using vhci_hcd [pid 5057] close(3 [pid 5054] kill(-2, SIGKILL) = 0 [pid 5054] kill(2, SIGKILL) = 0 [pid 5054] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5054] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5054] getdents64(3, 0x5555560846f0 /* 2 entries */, 32768) = 48 [pid 5054] getdents64(3, 0x5555560846f0 /* 0 entries */, 32768) = 0 [pid 5054] close(3) = 0 [ 76.925993][ T927] cfg80211: failed to load regulatory.db [ 286.844511][ T29] INFO: task kworker/0:0:8 blocked for more than 143 seconds. [ 286.852067][ T29] Not tainted 6.8.0-rc7-syzkaller-00020-g5847c9777c30 #0 [ 286.859737][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.868447][ T29] task:kworker/0:0 state:D stack:23888 pid:8 tgid:8 ppid:2 flags:0x00004000 [ 286.878689][ T29] Workqueue: usb_hub_wq hub_event [ 286.883855][ T29] Call Trace: [ 286.887386][ T29] [ 286.890331][ T29] __schedule+0x177f/0x49a0 [ 286.894978][ T29] ? __pfx___schedule+0x10/0x10 [ 286.899847][ T29] ? __pfx_lock_release+0x10/0x10 [ 286.904937][ T29] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 286.911023][ T29] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.916306][ T29] ? lockdep_hardirqs_on+0x98/0x140 [ 286.921592][ T29] ? schedule+0x8e/0x260 [ 286.925919][ T29] schedule+0x149/0x260 [ 286.930085][ T29] usb_kill_urb+0x1c9/0x300 [ 286.934660][ T29] ? __pfx_usb_kill_urb+0x10/0x10 [ 286.939693][ T29] ? __pfx_autoremove_wake_function+0x10/0x10 [ 286.945818][ T29] usb_start_wait_urb+0x1b0/0x520 [ 286.950866][ T29] ? __pfx_usb_start_wait_urb+0x10/0x10 [ 286.956455][ T29] ? usb_control_msg+0xbb/0x4c0 [ 286.961323][ T29] usb_control_msg+0x2b1/0x4c0 [ 286.966126][ T29] ? __pfx_usb_control_msg+0x10/0x10 [ 286.971421][ T29] ? hub_port_init+0x178/0x2620 [ 286.976302][ T29] ? kmalloc_trace+0x1d6/0x360 [ 286.981110][ T29] ? hub_port_init+0x178/0x2620 [ 286.986002][ T29] hub_port_init+0xc21/0x2620 [ 286.990697][ T29] hub_event+0x2908/0x50f0 [ 286.995219][ T29] ? __pfx_hub_event+0x10/0x10 [ 287.000009][ T29] ? __pfx_lock_acquire+0x10/0x10 [ 287.005209][ T29] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 287.011252][ T29] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 287.017673][ T29] ? process_scheduled_works+0x825/0x1420 [ 287.023441][ T29] process_scheduled_works+0x913/0x1420 [ 287.029072][ T29] ? __pfx_process_scheduled_works+0x10/0x10 [ 287.035109][ T29] ? assign_work+0x364/0x3d0 [ 287.039713][ T29] worker_thread+0xa5f/0x1000 [ 287.044459][ T29] ? __pfx_worker_thread+0x10/0x10 [ 287.049583][ T29] kthread+0x2ef/0x390 [ 287.053661][ T29] ? __pfx_worker_thread+0x10/0x10 [ 287.058824][ T29] ? __pfx_kthread+0x10/0x10 [ 287.063426][ T29] ret_from_fork+0x4b/0x80 [ 287.067921][ T29] ? __pfx_kthread+0x10/0x10 [ 287.072527][ T29] ret_from_fork_asm+0x1b/0x30 [ 287.077362][ T29] [ 287.080446][ T29] INFO: task syz-executor751:5057 blocked for more than 143 seconds. [ 287.088544][ T29] Not tainted 6.8.0-rc7-syzkaller-00020-g5847c9777c30 #0 [ 287.096203][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.104909][ T29] task:syz-executor751 state:D stack:24920 pid:5057 tgid:5057 ppid:5054 flags:0x00004006 [ 287.115116][ T29] Call Trace: [ 287.118381][ T29] [ 287.121296][ T29] __schedule+0x177f/0x49a0 [ 287.125891][ T29] ? __pfx___schedule+0x10/0x10 [ 287.130771][ T29] ? __pfx_lock_release+0x10/0x10 [ 287.135867][ T29] ? __mutex_trylock_common+0x91/0x2e0 [ 287.141338][ T29] ? schedule+0x8e/0x260 [ 287.145622][ T29] schedule+0x149/0x260 [ 287.149786][ T29] schedule_preempt_disabled+0x13/0x30 [ 287.155284][ T29] __mutex_lock+0x6a3/0xd70 [ 287.159793][ T29] ? __mutex_lock+0x526/0xd70 [ 287.164572][ T29] ? usbdev_release+0x7a/0x7a0 [ 287.169407][ T29] ? __pfx___mutex_lock+0x10/0x10 [ 287.174524][ T29] ? __asan_memset+0x23/0x50 [ 287.179145][ T29] ? __pfx___fsnotify_parent+0x10/0x10 [ 287.184671][ T29] usbdev_release+0x7a/0x7a0 [ 287.189269][ T29] ? __pfx_lock_release+0x10/0x10 [ 287.194310][ T29] ? __pfx_usbdev_release+0x10/0x10 [ 287.199562][ T29] __fput+0x429/0x8a0 [ 287.203559][ T29] __x64_sys_close+0x7e/0x110 [ 287.208279][ T29] do_syscall_64+0xf9/0x240 [ 287.212791][ T29] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 287.218766][ T29] RIP: 0033:0x7f360bbbd0e0 [ 287.223185][ T29] RSP: 002b:00007ffefe9563b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000003 [ 287.231631][ T29] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f360bbbd0e0 [ 287.239633][ T29] RDX: 0000000000000007 RSI: 00007ffefe955ef0 RDI: 0000000000000003 [ 287.247656][ T29] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 287.255680][ T29] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240 [ 287.263655][ T29] R13: 00007ffefe956668 R14: 0000000000000001 R15: 00007ffefe956400 [ 287.271680][ T29] [ 287.274759][ T29] [ 287.274759][ T29] Showing all locks held in the system: [ 287.282499][ T29] 5 locks held by kworker/0:0/8: [ 287.287480][ T29] #0: ffff88801c2f2938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 [ 287.298850][ T29] #1: ffffc900000d7d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 [ 287.310723][ T29] #2: ffff8880238d2190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x50f0 [ 287.319648][ T29] #3: ffff8880238d6510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x255f/0x50f0 [ 287.329600][ T29] #4: ffff888022762768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x259d/0x50f0 [ 287.339484][ T29] 1 lock held by khungtaskd/29: [ 287.344314][ T29] #0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 287.354242][ T29] 2 locks held by getty/4805: [ 287.358950][ T29] #0: ffff88802a7a10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.368828][ T29] #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 [ 287.378992][ T29] 1 lock held by syz-executor751/5057: [ 287.384472][ T29] #0: ffff8880238d2190 (&dev->mutex){....}-{3:3}, at: usbdev_release+0x7a/0x7a0 [ 287.393604][ T29] [ 287.395983][ T29] ============================================= [ 287.395983][ T29] [ 287.404435][ T29] NMI backtrace for cpu 1 [ 287.408761][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc7-syzkaller-00020-g5847c9777c30 #0 [ 287.418553][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 287.428638][ T29] Call Trace: [ 287.431908][ T29] [ 287.434838][ T29] dump_stack_lvl+0x1e7/0x2e0 [ 287.439509][ T29] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.444697][ T29] ? __pfx__printk+0x10/0x10 [ 287.449329][ T29] ? vprintk_emit+0x607/0x720 [ 287.454004][ T29] ? __pfx_vprintk_emit+0x10/0x10 [ 287.459033][ T29] nmi_cpu_backtrace+0x49c/0x4d0 [ 287.464010][ T29] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.469546][ T29] ? _printk+0xd5/0x120 [ 287.473693][ T29] ? __pfx__printk+0x10/0x10 [ 287.478277][ T29] ? __wake_up_klogd+0xcc/0x110 [ 287.483119][ T29] ? __pfx__printk+0x10/0x10 [ 287.487702][ T29] ? wq_watchdog_touch+0x72/0x110 [ 287.492719][ T29] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.498690][ T29] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 287.504665][ T29] watchdog+0xfaf/0xff0 [ 287.508842][ T29] ? watchdog+0x1e9/0xff0 [ 287.513165][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.517834][ T29] kthread+0x2ef/0x390 [ 287.521893][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.526567][ T29] ? __pfx_kthread+0x10/0x10 [ 287.531151][ T29] ret_from_fork+0x4b/0x80 [ 287.535557][ T29] ? __pfx_kthread+0x10/0x10 [ 287.540135][ T29] ret_from_fork_asm+0x1b/0x30 [ 287.544909][ T29] [ 287.548022][ T29] Sending NMI from CPU 1 to CPUs 0: [ 287.553239][ C0] NMI backtrace for cpu 0 [ 287.553248][ C0] CPU: 0 PID: 743 Comm: kworker/u4:5 Not tainted 6.8.0-rc7-syzkaller-00020-g5847c9777c30 #0 [ 287.553264][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 287.553273][ C0] Workqueue: events_unbound toggle_allocation_gate [ 287.553296][ C0] RIP: 0010:__lock_acquire+0x5c9/0x1fd0 [ 287.553320][ C0] Code: 84 c0 0f 85 49 12 00 00 41 8b 1f 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 20 84 c5 92 be 08 00 00 00 e8 c7 1d 81 00 <48> 0f a3 1d 4f 61 54 11 73 22 48 69 c3 c8 00 00 00 48 8d 98 20 e3 [ 287.553332][ C0] RSP: 0018:ffffc9000398f410 EFLAGS: 00000056 [ 287.553343][ C0] RAX: 0000000000000001 RBX: 0000000000000037 RCX: ffffffff817122c9 [ 287.553353][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff92c58420 [ 287.553362][ C0] RBP: 0000000000000002 R08: ffffffff92c58427 R09: 1ffffffff258b084 [ 287.553373][ C0] R10: dffffc0000000000 R11: fffffbfff258b085 R12: 0000000000000001 [ 287.553383][ C0] R13: ffff88801f6dbb80 R14: 000000000000001e R15: ffff88801f6dc750 [ 287.553393][ C0] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 287.553410][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.553420][ C0] CR2: 0000564308919680 CR3: 000000000df32000 CR4: 00000000003506f0 [ 287.553432][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.553441][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.553450][ C0] Call Trace: [ 287.553455][ C0] [ 287.553460][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 287.553479][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 287.553500][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.553524][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 287.553541][ C0] ? nmi_handle+0x14f/0x580 [ 287.553570][ C0] ? nmi_handle+0x2a/0x580 [ 287.553584][ C0] ? __lock_acquire+0x5c9/0x1fd0 [ 287.553603][ C0] ? default_do_nmi+0x63/0x160 [ 287.553621][ C0] ? exc_nmi+0x123/0x1f0 [ 287.553637][ C0] ? end_repeat_nmi+0xf/0x60 [ 287.553684][ C0] ? __lock_acquire+0x5c9/0x1fd0 [ 287.553704][ C0] ? __lock_acquire+0x5c9/0x1fd0 [ 287.553725][ C0] ? __lock_acquire+0x5c9/0x1fd0 [ 287.553745][ C0] ? __lock_acquire+0x5c9/0x1fd0 [ 287.553766][ C0] [ 287.553770][ C0] [ 287.553781][ C0] lock_acquire+0x1e3/0x530 [ 287.553801][ C0] ? __pte_offset_map_lock+0x1ba/0x300 [ 287.553816][ C0] ? __pfx_switch_ldt+0x10/0x10 [ 287.553831][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 287.553853][ C0] ? rcu_is_watching+0x15/0xb0 [ 287.553873][ C0] ? __pte_offset_map+0x2c4/0x380 [ 287.553888][ C0] ? __pfx___pte_offset_map+0x10/0x10 [ 287.553905][ C0] _raw_spin_lock+0x2e/0x40 [ 287.553924][ C0] ? __pte_offset_map_lock+0x1ba/0x300 [ 287.553937][ C0] __pte_offset_map_lock+0x1ba/0x300 [ 287.553954][ C0] ? __pfx___pte_offset_map_lock+0x10/0x10 [ 287.553969][ C0] ? do_raw_spin_unlock+0x13b/0x8b0 [ 287.553986][ C0] ? walk_to_pmd+0x19b/0x240 [ 287.554016][ C0] ? __kmalloc_node_track_caller+0x125/0x4e0 [ 287.554038][ C0] __text_poke+0x2c5/0xd30 [ 287.554052][ C0] ? __pfx_do_sync_core+0x10/0x10 [ 287.554069][ C0] ? __kmalloc+0x122/0x490 [ 287.554088][ C0] ? __pfx_text_poke_memcpy+0x10/0x10 [ 287.554106][ C0] ? __pfx___text_poke+0x10/0x10 [ 287.554120][ C0] ? kmem_cache_alloc_bulk+0x16c/0x780 [ 287.554144][ C0] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 287.554167][ C0] ? __pfx_perf_event_text_poke+0x10/0x10 [ 287.554188][ C0] ? __mutex_trylock_common+0x182/0x2e0 [ 287.554204][ C0] ? __pfx___might_resched+0x10/0x10 [ 287.554228][ C0] text_poke_bp_batch+0x8cd/0xb30 [ 287.554249][ C0] ? kmem_cache_alloc_bulk+0x16d/0x780 [ 287.554271][ C0] ? __pfx_text_poke_bp_batch+0x10/0x10 [ 287.554290][ C0] ? arch_jump_label_transform_queue+0x9b/0x100 [ 287.554313][ C0] text_poke_finish+0x30/0x50 [ 287.554331][ C0] arch_jump_label_transform_apply+0x1c/0x30 [ 287.554348][ C0] static_key_disable_cpuslocked+0xce/0x1c0 [ 287.554368][ C0] static_key_disable+0x1a/0x20 [ 287.554385][ C0] toggle_allocation_gate+0x1b8/0x250 [ 287.554410][ C0] ? __pfx_toggle_allocation_gate+0x10/0x10 [ 287.554428][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 287.554454][ C0] ? process_scheduled_works+0x825/0x1420 [ 287.554476][ C0] process_scheduled_works+0x913/0x1420 [ 287.554508][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 287.554532][ C0] ? assign_work+0x364/0x3d0 [ 287.554555][ C0] worker_thread+0xa5f/0x1000 [ 287.554584][ C0] ? __pfx_worker_thread+0x10/0x10 [ 287.554605][ C0] kthread+0x2ef/0x390 [ 287.554620][ C0] ? __pfx_worker_thread+0x10/0x10 [ 287.554641][ C0] ? __pfx_kthread+0x10/0x10 [ 287.554656][ C0] ret_from_fork+0x4b/0x80 [ 287.554675][ C0] ? __pfx_kthread+0x10/0x10 [ 287.554689][ C0] ret_from_fork_asm+0x1b/0x30 [ 287.554716][ C0] [ 287.554722][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.483 msecs [ 287.555284][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 287.555294][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc7-syzkaller-00020-g5847c9777c30 #0 [ 287.555310][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 287.555318][ T29] Call Trace: [ 287.555325][ T29] [ 287.555332][ T29] dump_stack_lvl+0x1e7/0x2e0 [ 287.555353][ T29] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.555368][ T29] ? __pfx__printk+0x10/0x10 [ 287.555386][ T29] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 287.555413][ T29] ? vscnprintf+0x5d/0x90 [ 287.555432][ T29] panic+0x349/0x860 [ 287.555454][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.555472][ T29] ? __pfx_panic+0x10/0x10 [ 287.555490][ T29] ? tick_nohz_tick_stopped+0x7b/0xc0 [ 287.555507][ T29] ? __irq_work_queue_local+0x137/0x3e0 [ 287.555538][ T29] ? preempt_schedule_thunk+0x1a/0x30 [ 287.555555][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.555578][ T29] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 287.555598][ T29] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 287.555618][ T29] watchdog+0xfee/0xff0 [ 287.555640][ T29] ? watchdog+0x1e9/0xff0 [ 287.555665][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.555684][ T29] kthread+0x2ef/0x390 [ 287.555700][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.555719][ T29] ? __pfx_kthread+0x10/0x10 [ 287.555736][ T29] ret_from_fork+0x4b/0x80 [ 287.555753][ T29] ? __pfx_kthread+0x10/0x10 [ 287.555769][ T29] ret_from_fork_asm+0x1b/0x30 [ 287.555801][ T29] [ 287.559402][ T29] Kernel Offset: disabled [ 288.187466][ T29] Rebooting in 86400 seconds..