./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1324059643 <...> Warning: Permanently added '10.128.0.237' (ED25519) to the list of known hosts. execve("./syz-executor1324059643", ["./syz-executor1324059643"], 0x7ffeb8090340 /* 10 vars */) = 0 brk(NULL) = 0x555556794000 brk(0x555556794d00) = 0x555556794d00 arch_prctl(ARCH_SET_FS, 0x555556794380) = 0 set_tid_address(0x555556794650) = 5062 set_robust_list(0x555556794660, 24) = 0 rseq(0x555556794ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1324059643", 4096) = 28 getrandom("\x87\x91\x13\xbe\x5e\xed\xab\x1f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556794d00 brk(0x5555567b5d00) = 0x5555567b5d00 brk(0x5555567b6000) = 0x5555567b6000 mprotect(0x7fd7902eb000, 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, child_tidptr=0x555556794650) = 5063 ./strace-static-x86_64: Process 5063 attached [pid 5063] set_robust_list(0x555556794660, 24) = 0 [pid 5063] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5063] setsid() = 1 [pid 5063] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5063] unshare(CLONE_NEWNS) = 0 [pid 5063] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5063] unshare(CLONE_NEWIPC) = 0 [pid 5063] unshare(CLONE_NEWCGROUP) = 0 [pid 5063] unshare(CLONE_NEWUTS) = 0 [pid 5063] unshare(CLONE_SYSVSEM) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "16777216", 8) = 8 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "536870912", 9) = 9 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "8192", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5063] close(3) = 0 [pid 5063] getpid() = 1 [pid 5063] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5063] kill(-2, SIGKILL) = 0 [pid 5063] kill(2, SIGKILL) = 0 [pid 5063] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5063] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5063] getdents64(3, 0x5555567956f0 /* 2 entries */, 32768) = 48 [pid 5063] getdents64(3, 0x5555567956f0 /* 0 entries */, 32768) = 0 [pid 5063] close(3) = 0 [ 82.347499][ T55] cfg80211: failed to load regulatory.db [ 287.145466][ T29] INFO: task kworker/0:1:9 blocked for more than 143 seconds. [ 287.153077][ T29] Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 [ 287.160795][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.169688][ T29] task:kworker/0:1 state:D stack:23664 pid:9 tgid:9 ppid:2 flags:0x00004000 [ 287.180397][ T29] Workqueue: usb_hub_wq hub_event [ 287.185889][ T29] Call Trace: [ 287.189170][ T29] [ 287.192094][ T29] __schedule+0x177f/0x49a0 [ 287.196756][ T29] ? __pfx___schedule+0x10/0x10 [ 287.201619][ T29] ? __pfx_lock_release+0x10/0x10 [ 287.206735][ T29] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 287.212738][ T29] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.218036][ T29] ? lockdep_hardirqs_on+0x98/0x140 [ 287.223302][ T29] ? schedule+0x8e/0x260 [ 287.227582][ T29] schedule+0x149/0x260 [ 287.231748][ T29] usb_kill_urb+0x1c9/0x300 [ 287.236320][ T29] ? __pfx_usb_kill_urb+0x10/0x10 [ 287.241353][ T29] ? __pfx_autoremove_wake_function+0x10/0x10 [ 287.247499][ T29] usb_start_wait_urb+0x1b0/0x520 [ 287.252642][ T29] ? __pfx_usb_start_wait_urb+0x10/0x10 [ 287.258268][ T29] ? usb_control_msg+0xbb/0x4c0 [ 287.263133][ T29] usb_control_msg+0x2b1/0x4c0 [ 287.268036][ T29] ? __pfx_usb_control_msg+0x10/0x10 [ 287.273331][ T29] ? hub_port_init+0x178/0x2620 [ 287.278236][ T29] ? kmalloc_trace+0x1d6/0x360 [ 287.283064][ T29] ? hub_port_init+0x178/0x2620 [ 287.287956][ T29] hub_port_init+0xc21/0x2620 [ 287.292653][ T29] hub_event+0x2908/0x50f0 [ 287.297275][ T29] ? __pfx_hub_event+0x10/0x10 [ 287.302063][ T29] ? __pfx_lock_acquire+0x10/0x10 [ 287.307145][ T29] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 287.313147][ T29] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 287.319561][ T29] ? process_scheduled_works+0x825/0x1420 [ 287.325381][ T29] process_scheduled_works+0x913/0x1420 [ 287.330941][ T29] ? __pfx_process_scheduled_works+0x10/0x10 [ 287.336975][ T29] ? assign_work+0x364/0x3d0 [ 287.341582][ T29] worker_thread+0xa5f/0x1000 [ 287.346314][ T29] ? __pfx_worker_thread+0x10/0x10 [ 287.351440][ T29] kthread+0x2ef/0x390 [ 287.355572][ T29] ? __pfx_worker_thread+0x10/0x10 [ 287.360695][ T29] ? __pfx_kthread+0x10/0x10 [ 287.365270][ T29] ret_from_fork+0x4b/0x80 [ 287.369758][ T29] ? __pfx_kthread+0x10/0x10 [ 287.374335][ T29] ret_from_fork_asm+0x1b/0x30 [ 287.379180][ T29] [ 287.382290][ T29] INFO: task syz-executor132:5066 blocked for more than 143 seconds. [ 287.390392][ T29] Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 [ 287.397968][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.406723][ T29] task:syz-executor132 state:D stack:24920 pid:5066 tgid:5066 ppid:5063 flags:0x00004006 [ 287.416943][ T29] Call Trace: [ 287.420210][ T29] [ 287.423126][ T29] __schedule+0x177f/0x49a0 [ 287.427705][ T29] ? __pfx___schedule+0x10/0x10 [ 287.432583][ T29] ? __pfx_lock_release+0x10/0x10 [ 287.437697][ T29] ? __mutex_trylock_common+0x91/0x2e0 [ 287.443182][ T29] ? schedule+0x8e/0x260 [ 287.447484][ T29] schedule+0x149/0x260 [ 287.451651][ T29] schedule_preempt_disabled+0x13/0x30 [ 287.457163][ T29] __mutex_lock+0x6a3/0xd70 [ 287.461678][ T29] ? __mutex_lock+0x526/0xd70 [ 287.466407][ T29] ? usbdev_release+0x7a/0x7a0 [ 287.471274][ T29] ? __pfx___mutex_lock+0x10/0x10 [ 287.476348][ T29] ? __asan_memset+0x23/0x50 [ 287.480966][ T29] ? __pfx___fsnotify_parent+0x10/0x10 [ 287.486480][ T29] usbdev_release+0x7a/0x7a0 [ 287.491087][ T29] ? __pfx_lock_release+0x10/0x10 [ 287.496170][ T29] ? __pfx_usbdev_release+0x10/0x10 [ 287.501376][ T29] __fput+0x429/0x8a0 [ 287.505513][ T29] __x64_sys_close+0x7e/0x110 [ 287.510205][ T29] do_syscall_64+0xf9/0x240 [ 287.514746][ T29] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 287.520885][ T29] RIP: 0033:0x7fd7902770e0 [ 287.525348][ T29] RSP: 002b:00007ffce6ced778 EFLAGS: 00000202 ORIG_RAX: 0000000000000003 [ 287.533768][ T29] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fd7902770e0 [ 287.541800][ T29] RDX: 0000000000000007 RSI: 00007ffce6ced2b0 RDI: 0000000000000003 [ 287.549797][ T29] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 287.557892][ T29] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240 [ 287.565921][ T29] R13: 00007ffce6ceda28 R14: 0000000000000001 R15: 00007ffce6ced7c0 [ 287.573930][ T29] [ 287.577053][ T29] [ 287.577053][ T29] Showing all locks held in the system: [ 287.584774][ T29] 5 locks held by kworker/0:1/9: [ 287.589923][ T29] #0: ffff88801b6fe538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 [ 287.601357][ T29] #1: ffffc900000e7d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 [ 287.613241][ T29] #2: ffff88802454d190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x50f0 [ 287.622329][ T29] #3: ffff888024671510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x255f/0x50f0 [ 287.632319][ T29] #4: ffff8880224415b8 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x259d/0x50f0 [ 287.642071][ T29] 1 lock held by khungtaskd/29: [ 287.646939][ T29] #0: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 287.656928][ T29] 2 locks held by getty/4816: [ 287.661590][ T29] #0: ffff88802b4250a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.671485][ T29] #1: ffffc90002efe2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 [ 287.681659][ T29] 1 lock held by syz-executor132/5066: [ 287.687189][ T29] #0: ffff88802454d190 (&dev->mutex){....}-{3:3}, at: usbdev_release+0x7a/0x7a0 [ 287.696416][ T29] [ 287.698748][ T29] ============================================= [ 287.698748][ T29] [ 287.707229][ T29] NMI backtrace for cpu 1 [ 287.711558][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 [ 287.721350][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 287.731395][ T29] Call Trace: [ 287.734666][ T29] [ 287.737610][ T29] dump_stack_lvl+0x1e7/0x2e0 [ 287.742411][ T29] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.747621][ T29] ? __pfx__printk+0x10/0x10 [ 287.752313][ T29] ? vprintk_emit+0x607/0x720 [ 287.757036][ T29] ? __pfx_vprintk_emit+0x10/0x10 [ 287.762068][ T29] nmi_cpu_backtrace+0x49c/0x4d0 [ 287.767561][ T29] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.773008][ T29] ? _printk+0xd5/0x120 [ 287.777162][ T29] ? __pfx__printk+0x10/0x10 [ 287.781744][ T29] ? __wake_up_klogd+0xcc/0x110 [ 287.786589][ T29] ? __pfx__printk+0x10/0x10 [ 287.791169][ T29] ? wq_watchdog_touch+0x72/0x110 [ 287.796192][ T29] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.802183][ T29] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 287.808179][ T29] watchdog+0xfaf/0xff0 [ 287.812375][ T29] ? watchdog+0x1e9/0xff0 [ 287.816711][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.821393][ T29] kthread+0x2ef/0x390 [ 287.825464][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.830185][ T29] ? __pfx_kthread+0x10/0x10 [ 287.834796][ T29] ret_from_fork+0x4b/0x80 [ 287.839233][ T29] ? __pfx_kthread+0x10/0x10 [ 287.844261][ T29] ret_from_fork_asm+0x1b/0x30 [ 287.849035][ T29] [ 287.852183][ T29] Sending NMI from CPU 1 to CPUs 0: [ 287.857449][ C0] NMI backtrace for cpu 0 [ 287.857462][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 [ 287.857483][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 287.857494][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x27/0x70 [ 287.857528][ C0] Code: 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0d 80 58 70 7e 65 8b 15 81 58 70 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 <83> b9 fc 15 00 00 00 74 2c 8b 91 d8 15 00 00 83 fa 02 75 21 48 8b [ 287.857544][ C0] RSP: 0018:ffffc90000007cf8 EFLAGS: 00000006 [ 287.857562][ C0] RAX: ffffffff8134f20d RBX: ffffffff8dacb940 RCX: ffffffff8de94680 [ 287.857576][ C0] RDX: 0000000080000101 RSI: ffffffff8bfd9440 RDI: 0000000000000000 [ 287.857590][ C0] RBP: ffffc90000007df0 R08: ffffffff8134f241 R09: 1ffffffff1f085b5 [ 287.857604][ C0] R10: dffffc0000000000 R11: fffffbfff1f085b6 R12: ffffc90000007d80 [ 287.857618][ C0] R13: 1ffff92000000fac R14: dffffc0000000000 R15: 0000000000000100 [ 287.857632][ C0] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 287.857649][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.857662][ C0] CR2: 0000563ef03d6600 CR3: 000000002d92c000 CR4: 00000000003506f0 [ 287.857679][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.857690][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.857702][ C0] Call Trace: [ 287.857708][ C0] [ 287.857715][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 287.857735][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 287.857764][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.857782][ C0] ? nmi_handle+0x2a/0x580 [ 287.857842][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 287.857864][ C0] ? nmi_handle+0x14f/0x580 [ 287.857880][ C0] ? nmi_handle+0x2a/0x580 [ 287.857898][ C0] ? __sanitizer_cov_trace_pc+0x27/0x70 [ 287.857922][ C0] ? default_do_nmi+0x63/0x160 [ 287.857942][ C0] ? exc_nmi+0x121/0x210 [ 287.857960][ C0] ? end_repeat_nmi+0xf/0x60 [ 287.858054][ C0] ? sched_clock+0x41/0x70 [ 287.858075][ C0] ? sched_clock+0xd/0x70 [ 287.858096][ C0] ? __sanitizer_cov_trace_pc+0x27/0x70 [ 287.858121][ C0] ? __sanitizer_cov_trace_pc+0x27/0x70 [ 287.858147][ C0] ? __sanitizer_cov_trace_pc+0x27/0x70 [ 287.858171][ C0] [ 287.858176][ C0] [ 287.858182][ C0] sched_clock+0xd/0x70 [ 287.858203][ C0] sched_clock_cpu+0x76/0x490 [ 287.858228][ C0] ? __pfx_sched_clock_cpu+0x10/0x10 [ 287.858247][ C0] ? __irq_exit_rcu+0xf1/0x1c0 [ 287.858278][ C0] ? __pfx___local_bh_disable_ip+0x10/0x10 [ 287.858306][ C0] ? tick_irq_enter+0x146/0x350 [ 287.858334][ C0] ? do_raw_spin_unlock+0x13b/0x8b0 [ 287.858358][ C0] irqtime_account_irq+0x74/0x1e0 [ 287.858383][ C0] __do_softirq+0x182/0x942 [ 287.858409][ C0] ? __pfx_sched_clock_idle_wakeup_event+0x10/0x10 [ 287.858433][ C0] ? __irq_exit_rcu+0xf1/0x1c0 [ 287.858450][ C0] ? kvm_sched_clock_read+0x11/0x20 [ 287.858472][ C0] ? sched_clock+0x4a/0x70 [ 287.858492][ C0] ? __pfx___do_softirq+0x10/0x10 [ 287.858528][ C0] ? sched_clock_cpu+0x76/0x490 [ 287.858550][ C0] ? irqtime_account_irq+0xd4/0x1e0 [ 287.858574][ C0] __irq_exit_rcu+0xf1/0x1c0 [ 287.858591][ C0] ? __pfx___irq_exit_rcu+0x10/0x10 [ 287.858610][ C0] ? rcu_is_watching+0x15/0xb0 [ 287.858638][ C0] irq_exit_rcu+0x9/0x30 [ 287.858663][ C0] sysvec_call_function_single+0x94/0xb0 [ 287.858686][ C0] [ 287.858691][ C0] [ 287.858697][ C0] asm_sysvec_call_function_single+0x1a/0x20 [ 287.858723][ C0] RIP: 0010:acpi_safe_halt+0x20/0x30 [ 287.858750][ C0] Code: 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 58 ea a5 74 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d c6 5c a9 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 [ 287.858765][ C0] RSP: 0018:ffffffff8de07ca8 EFLAGS: 00000246 [ 287.858780][ C0] RAX: ffffffff8de94680 RBX: ffff88801628e064 RCX: 0000000000042569 [ 287.858794][ C0] RDX: 0000000000000001 RSI: ffff88801628e000 RDI: ffff88801628e064 [ 287.858807][ C0] RBP: 0000000000038f78 R08: ffff8880b9436d8b R09: 1ffff11017286db1 [ 287.858821][ C0] R10: dffffc0000000000 R11: ffffffff8b5dd030 R12: ffff888015347800 [ 287.858835][ C0] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8e885860 [ 287.858850][ C0] ? __pfx_acpi_idle_enter+0x10/0x10 [ 287.858882][ C0] acpi_idle_enter+0xe4/0x140 [ 287.858910][ C0] cpuidle_enter_state+0x118/0x490 [ 287.858939][ C0] cpuidle_enter+0x5d/0xa0 [ 287.859031][ C0] do_idle+0x374/0x5d0 [ 287.859063][ C0] ? __pfx_do_idle+0x10/0x10 [ 287.859093][ C0] ? do_idle+0x10/0x5d0 [ 287.859119][ C0] ? rest_init+0x35/0x300 [ 287.859135][ C0] cpu_startup_entry+0x41/0x60 [ 287.859162][ C0] rest_init+0x2e0/0x300 [ 287.859178][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 287.859263][ C0] arch_call_rest_init+0xe/0x10 [ 287.859307][ C0] start_kernel+0x474/0x500 [ 287.859331][ C0] x86_64_start_reservations+0x2a/0x30 [ 287.859360][ C0] x86_64_start_kernel+0x99/0xa0 [ 287.859386][ C0] secondary_startup_64_no_verify+0x171/0x17b [ 287.859421][ C0] [ 287.859429][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.979 msecs [ 287.859452][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 288.367326][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0 [ 288.377121][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 288.387163][ T29] Call Trace: [ 288.390438][ T29] [ 288.393361][ T29] dump_stack_lvl+0x1e7/0x2e0 [ 288.398044][ T29] ? __pfx_dump_stack_lvl+0x10/0x10 [ 288.403249][ T29] ? __pfx__printk+0x10/0x10 [ 288.407840][ T29] ? vscnprintf+0x5d/0x90 [ 288.412162][ T29] panic+0x349/0x860 [ 288.416050][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 288.422287][ T29] ? __pfx_panic+0x10/0x10 [ 288.426738][ T29] ? nmi_backtrace_stall_check+0x469/0x480 [ 288.432542][ T29] ? preempt_schedule_thunk+0x1a/0x30 [ 288.437906][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 288.444048][ T29] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 288.450873][ T29] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 288.457312][ T29] watchdog+0xfee/0xff0 [ 288.461522][ T29] ? watchdog+0x1e9/0xff0 [ 288.465984][ T29] ? __pfx_watchdog+0x10/0x10 [ 288.470688][ T29] kthread+0x2ef/0x390 [ 288.474778][ T29] ? __pfx_watchdog+0x10/0x10 [ 288.479493][ T29] ? __pfx_kthread+0x10/0x10 [ 288.484099][ T29] ret_from_fork+0x4b/0x80 [ 288.488637][ T29] ? __pfx_kthread+0x10/0x10 [ 288.493247][ T29] ret_from_fork_asm+0x1b/0x30 [ 288.498128][ T29] [ 288.501344][ T29] Kernel Offset: disabled [ 288.505676][ T29] Rebooting in 86400 seconds..