./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor430313964 <...> Warning: Permanently added '10.128.1.133' (ED25519) to the list of known hosts. execve("./syz-executor430313964", ["./syz-executor430313964"], 0x7ffc66f1e910 /* 10 vars */) = 0 brk(NULL) = 0x55555f934000 brk(0x55555f934d40) = 0x55555f934d40 arch_prctl(ARCH_SET_FS, 0x55555f9343c0) = 0 set_tid_address(0x55555f934690) = 5857 set_robust_list(0x55555f9346a0, 24) = 0 rseq(0x55555f934ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor430313964", 4096) = 27 getrandom("\x52\x21\x03\x39\x16\x42\xe9\x04", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555f934d40 brk(0x55555f955d40) = 0x55555f955d40 brk(0x55555f956000) = 0x55555f956000 mprotect(0x7f323dabf000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5858 attached , child_tidptr=0x55555f934690) = 5858 [pid 5858] set_robust_list(0x55555f9346a0, 24) = 0 [pid 5858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5858] setpgid(0, 0) = 0 [pid 5858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5858] write(3, "1000", 4) = 4 [pid 5858] close(3) = 0 [pid 5858] write(1, "executing program\n", 18executing program ) = 18 [pid 5858] futex(0x7f323dac530c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5858] rt_sigaction(SIGRT_1, {sa_handler=0x7f323da61220, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f323da528a0}, NULL, 8) = 0 [pid 5858] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5858] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f323d9d4000 [pid 5858] mprotect(0x7f323d9d5000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5858] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5858] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f323d9f4990, parent_tid=0x7f323d9f4990, exit_signal=0, stack=0x7f323d9d4000, stack_size=0x20300, tls=0x7f323d9f46c0}./strace-static-x86_64: Process 5859 attached [pid 5859] rseq(0x7f323d9f4fe0, 0x20, 0, 0x53053053 [pid 5858] <... clone3 resumed> => {parent_tid=[5859]}, 88) = 5859 [pid 5859] <... rseq resumed>) = 0 [pid 5859] set_robust_list(0x7f323d9f49a0, 24) = 0 [pid 5858] rt_sigprocmask(SIG_SETMASK, [], [pid 5859] rt_sigprocmask(SIG_SETMASK, [], [pid 5858] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5859] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5858] futex(0x7f323dac5308, FUTEX_WAKE_PRIVATE, 1000000 [pid 5859] mmap(0x200000000000, 11755520, PROT_READ|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0xb635773f04ebbee0, MAP_SHARED|MAP_FIXED|MAP_ANONYMOUS|MAP_POPULATE, -1, 0xf6d0f000 [pid 5858] <... futex resumed>) = 0 [pid 5858] futex(0x7f323dac530c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5858] futex(0x7f323dac531c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5858] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5859] <... mmap resumed>) = 0x200000000000 [pid 5858] <... mmap resumed>) = 0x7f323d9b3000 [pid 5858] mprotect(0x7f323d9b4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5858] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5859] futex(0x7f323dac530c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5858] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5859] futex(0x7f323dac5308, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5858] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f323d9d3990, parent_tid=0x7f323d9d3990, exit_signal=0, stack=0x7f323d9b3000, stack_size=0x20300, tls=0x7f323d9d36c0}./strace-static-x86_64: Process 5860 attached [pid 5860] rseq(0x7f323d9d3fe0, 0x20, 0, 0x53053053) = 0 [pid 5860] set_robust_list(0x7f323d9d39a0, 24 [pid 5858] <... clone3 resumed> => {parent_tid=[5860]}, 88) = 5860 [pid 5860] <... set_robust_list resumed>) = 0 [pid 5860] rt_sigprocmask(SIG_SETMASK, [], [pid 5858] rt_sigprocmask(SIG_SETMASK, [], [pid 5860] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5858] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5860] futex(0x7f323dac5318, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5858] futex(0x7f323dac5318, FUTEX_WAKE_PRIVATE, 1000000 [pid 5860] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5858] <... futex resumed>) = 0 [pid 5860] mremap(0x200000000000, 6291458, 6291458, MREMAP_MAYMOVE|MREMAP_FIXED|MREMAP_DONTUNMAP, 0x200000a00000 [pid 5858] futex(0x7f323dac531c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5858] exit_group(0) = ? [pid 5859] <... futex resumed>) = ? [ 97.303935][ T1213] cfg80211: failed to load regulatory.db [pid 5857] kill(-5858, SIGKILL) = 0 [pid 5857] kill(5858, SIGKILL) = 0 [pid 5857] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5857] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5857] getdents64(3, 0x55555f935730 /* 2 entries */, 32768) = 48 [pid 5857] getdents64(3, 0x55555f935730 /* 0 entries */, 32768) = 0 [pid 5857] close(3) = 0 [ 286.733769][ T31] INFO: task syz-executor430:5858 blocked for more than 143 seconds. [ 286.742152][ T31] Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 [ 286.749297][ T31] Blocked by coredump. [ 286.754011][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.762987][ T31] task:syz-executor430 state:D stack:26232 pid:5858 tgid:5858 ppid:5857 task_flags:0x40004c flags:0x00004002 [ 286.775413][ T31] Call Trace: [ 286.778813][ T31] [ 286.782375][ T31] __schedule+0x1737/0x4d30 [ 286.786971][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.792296][ T31] ? schedule+0x165/0x360 [ 286.796679][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.803084][ T31] ? __pfx___schedule+0x10/0x10 [ 286.808097][ T31] ? schedule+0x91/0x360 [ 286.812803][ T31] schedule+0x165/0x360 [ 286.817012][ T31] schedule_preempt_disabled+0x13/0x30 [ 286.822968][ T31] rwsem_down_read_slowpath+0x5fd/0x8f0 [ 286.828630][ T31] ? rwsem_down_read_slowpath+0x4b8/0x8f0 [ 286.834977][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 286.841094][ T31] ? exit_mm+0xcc/0x2c0 [ 286.845752][ T31] ? __pfx_mm_release+0x10/0x10 [ 286.850638][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.856327][ T31] down_read+0x98/0x2e0 [ 286.860534][ T31] exit_mm+0xcc/0x2c0 [ 286.865111][ T31] ? __pfx_exit_mm+0x10/0x10 [ 286.869766][ T31] ? rcu_is_watching+0x15/0xb0 [ 286.874977][ T31] do_exit+0x648/0x2300 [ 286.879196][ T31] ? __pfx_do_exit+0x10/0x10 [ 286.884358][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.889598][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.895223][ T31] do_group_exit+0x21c/0x2d0 [ 286.899852][ T31] __x64_sys_exit_group+0x3f/0x40 [ 286.905572][ T31] x64_sys_call+0x21f7/0x2200 [ 286.910282][ T31] do_syscall_64+0xfa/0x3b0 [ 286.915635][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.921755][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.927857][ T31] ? clear_bhb_loop+0x60/0xb0 [ 286.932911][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.938924][ T31] RIP: 0033:0x7f323da39349 [ 286.943843][ T31] RSP: 002b:00007ffd8370a628 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 286.952549][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f323da39349 [ 286.960551][ T31] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 286.969085][ T31] RBP: 00007f323dac52b0 R08: ffffffffffffffb0 R09: 7fffffffffffffff [ 286.977527][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f323dac52b0 [ 286.985827][ T31] R13: 0000000000000000 R14: 00007f323dac5e40 R15: 00007f323da07160 [ 286.994090][ T31] [ 286.997183][ T31] INFO: task syz-executor430:5859 blocked for more than 143 seconds. [ 287.005967][ T31] Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 [ 287.013532][ T31] Blocked by coredump. [ 287.018140][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.027652][ T31] task:syz-executor430 state:D stack:26024 pid:5859 tgid:5858 ppid:5857 task_flags:0x40044c flags:0x00004002 [ 287.039884][ T31] Call Trace: [ 287.043449][ T31] [ 287.046439][ T31] __schedule+0x1737/0x4d30 [ 287.051001][ T31] ? __lock_acquire+0xab9/0xd20 [ 287.056395][ T31] ? schedule+0x165/0x360 [ 287.060773][ T31] ? __lock_acquire+0xab9/0xd20 [ 287.066049][ T31] ? __pfx___schedule+0x10/0x10 [ 287.070958][ T31] ? schedule+0x91/0x360 [ 287.075637][ T31] schedule+0x165/0x360 [ 287.079838][ T31] schedule_preempt_disabled+0x13/0x30 [ 287.085732][ T31] rwsem_down_read_slowpath+0x5fd/0x8f0 [ 287.091563][ T31] ? rwsem_down_read_slowpath+0x4b8/0x8f0 [ 287.097319][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 287.103811][ T31] ? exit_mm+0xcc/0x2c0 [ 287.108017][ T31] ? __pfx_mm_release+0x10/0x10 [ 287.113273][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.118537][ T31] down_read+0x98/0x2e0 [ 287.123098][ T31] exit_mm+0xcc/0x2c0 [ 287.127128][ T31] ? __pfx_exit_mm+0x10/0x10 [ 287.132727][ T31] ? rcu_is_watching+0x15/0xb0 [ 287.137547][ T31] do_exit+0x648/0x2300 [ 287.142128][ T31] ? do_raw_spin_lock+0x121/0x290 [ 287.147198][ T31] ? __pfx_do_exit+0x10/0x10 [ 287.152336][ T31] do_group_exit+0x21c/0x2d0 [ 287.156967][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.162443][ T31] get_signal+0x1286/0x1340 [ 287.167007][ T31] arch_do_signal_or_restart+0x9a/0x750 [ 287.173049][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.178293][ T31] ? _raw_spin_unlock_irq+0x2e/0x50 [ 287.184198][ T31] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 287.190408][ T31] ? exit_to_user_mode_loop+0x40/0x110 [ 287.196285][ T31] exit_to_user_mode_loop+0x75/0x110 [ 287.201859][ T31] do_syscall_64+0x2bd/0x3b0 [ 287.206509][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.213126][ T31] ? __switch_to_asm+0x39/0x70 [ 287.217924][ T31] ? clear_bhb_loop+0x60/0xb0 [ 287.223061][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.228991][ T31] RIP: 0033:0x7f323da3b2e9 [ 287.233978][ T31] RSP: 002b:00007f323d9f4228 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 287.243197][ T31] RAX: fffffffffffffe00 RBX: 00007f323dac5308 RCX: 00007f323da3b2e9 [ 287.251551][ T31] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f323dac5308 [ 287.259559][ T31] RBP: 00007f323dac5300 R08: 00007f323d9f46c0 R09: 00007f323d9f46c0 [ 287.268025][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f323dac530c [ 287.276306][ T31] R13: 0000200000000000 R14: b635773f06ebbeed R15: 00007ffd8370a5a8 [ 287.284674][ T31] [ 287.287770][ T31] [ 287.287770][ T31] Showing all locks held in the system: [ 287.296149][ T31] 1 lock held by ksoftirqd/1/23: [ 287.301117][ T31] 1 lock held by khungtaskd/31: [ 287.309146][ T31] #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 287.319492][ T31] 2 locks held by getty/5608: [ 287.324489][ T31] #0: ffff888033b4e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.334662][ T31] #1: ffffc9000362c2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 [ 287.345164][ T31] 1 lock held by syz-executor430/5858: [ 287.350640][ T31] #0: ffff88804c78e2a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 [ 287.360440][ T31] 1 lock held by syz-executor430/5859: [ 287.366259][ T31] #0: ffff88804c78e2a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 [ 287.375401][ T31] 1 lock held by syz-executor430/5860: [ 287.380938][ T31] [ 287.383668][ T31] ============================================= [ 287.383668][ T31] [ 287.392517][ T31] NMI backtrace for cpu 0 [ 287.392541][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.392571][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.392583][ T31] Call Trace: [ 287.392591][ T31] [ 287.392599][ T31] dump_stack_lvl+0x189/0x250 [ 287.392635][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.392664][ T31] ? __pfx__printk+0x10/0x10 [ 287.392706][ T31] nmi_cpu_backtrace+0x39e/0x3d0 [ 287.392735][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.392763][ T31] ? __pfx__printk+0x10/0x10 [ 287.392795][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.392822][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 287.392850][ T31] watchdog+0xf93/0xfe0 [ 287.392878][ T31] ? watchdog+0x1de/0xfe0 [ 287.392905][ T31] kthread+0x70e/0x8a0 [ 287.392939][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.392959][ T31] ? __pfx_kthread+0x10/0x10 [ 287.392990][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.393016][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.393042][ T31] ? __pfx_kthread+0x10/0x10 [ 287.393073][ T31] ret_from_fork+0x3f9/0x770 [ 287.393100][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 287.393132][ T31] ? __switch_to_asm+0x39/0x70 [ 287.393149][ T31] ? __switch_to_asm+0x33/0x70 [ 287.393165][ T31] ? __pfx_kthread+0x10/0x10 [ 287.393195][ T31] ret_from_fork_asm+0x1a/0x30 [ 287.393230][ T31] [ 287.393237][ T31] Sending NMI from CPU 0 to CPUs 1: [ 287.541637][ C1] NMI backtrace for cpu 1 [ 287.541655][ C1] CPU: 1 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.541675][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.541686][ C1] Workqueue: events_unbound toggle_allocation_gate [ 287.541712][ C1] RIP: 0010:__this_cpu_preempt_check+0x0/0x20 [ 287.541730][ C1] Code: 06 cd b3 f5 eb a7 e8 8f e4 ff ff 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 89 fe 48 c7 c7 00 d4 04 8c e9 bd fe ff ff cc cc cc [ 287.541744][ C1] RSP: 0018:ffffc900001277f0 EFLAGS: 00000046 [ 287.541757][ C1] RAX: 0000000000000001 RBX: 0000000000000001 RCX: 77a096d512c15200 [ 287.541769][ C1] RDX: ffff88801d2a8000 RSI: ffffffff8e3e9448 RDI: ffffffff8de5b067 [ 287.541788][ C1] RBP: 00000000ffffffff R08: ffff88801a87b063 R09: 1ffff1100350f60c [ 287.541801][ C1] R10: dffffc0000000000 R11: ffffed100350f60d R12: 0000000000000246 [ 287.541813][ C1] R13: ffff88801d2a8000 R14: ffffffff8e3e9448 R15: 0000000000000004 [ 287.541825][ C1] FS: 0000000000000000(0000) GS:ffff8881258ab000(0000) knlGS:0000000000000000 [ 287.541838][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.541849][ C1] CR2: 000055ef10e9e5a0 CR3: 000000000e338000 CR4: 00000000003526f0 [ 287.541864][ C1] Call Trace: [ 287.541870][ C1] [ 287.541876][ C1] lock_is_held_type+0xfe/0x190 [ 287.541904][ C1] smp_text_poke_batch_finish+0xcaf/0x1100 [ 287.541925][ C1] ? __pfx_smp_text_poke_batch_finish+0x10/0x10 [ 287.541944][ C1] ? arch_jump_label_transform_queue+0x97/0x110 [ 287.541968][ C1] arch_jump_label_transform_apply+0x1c/0x30 [ 287.541987][ C1] static_key_enable_cpuslocked+0x128/0x250 [ 287.542010][ C1] static_key_enable+0x1a/0x20 [ 287.542029][ C1] toggle_allocation_gate+0xad/0x240 [ 287.542048][ C1] ? __pfx_toggle_allocation_gate+0x10/0x10 [ 287.542067][ C1] ? process_scheduled_works+0x9ef/0x17b0 [ 287.542091][ C1] ? process_scheduled_works+0x9ef/0x17b0 [ 287.542110][ C1] ? process_scheduled_works+0x9ef/0x17b0 [ 287.542129][ C1] process_scheduled_works+0xade/0x17b0 [ 287.542162][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 287.542189][ C1] worker_thread+0x8a0/0xda0 [ 287.542220][ C1] kthread+0x70e/0x8a0 [ 287.542246][ C1] ? __pfx_worker_thread+0x10/0x10 [ 287.542266][ C1] ? __pfx_kthread+0x10/0x10 [ 287.542290][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.542311][ C1] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.542333][ C1] ? __pfx_kthread+0x10/0x10 [ 287.542357][ C1] ret_from_fork+0x3f9/0x770 [ 287.542378][ C1] ? __pfx_ret_from_fork+0x10/0x10 [ 287.542401][ C1] ? __switch_to_asm+0x39/0x70 [ 287.542416][ C1] ? __switch_to_asm+0x33/0x70 [ 287.542429][ C1] ? __pfx_kthread+0x10/0x10 [ 287.542453][ C1] ret_from_fork_asm+0x1a/0x30 [ 287.542475][ C1] [ 287.542675][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 287.827921][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.839206][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.849262][ T31] Call Trace: [ 287.852549][ T31] [ 287.855489][ T31] dump_stack_lvl+0x99/0x250 [ 287.860101][ T31] ? __asan_memcpy+0x40/0x70 [ 287.864705][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.869923][ T31] ? __pfx__printk+0x10/0x10 [ 287.874535][ T31] vpanic+0x281/0x750 [ 287.878536][ T31] ? __pfx_vpanic+0x10/0x10 [ 287.883076][ T31] ? preempt_schedule+0xae/0xc0 [ 287.887942][ T31] ? preempt_schedule_common+0x83/0xd0 [ 287.893420][ T31] panic+0xb9/0xc0 [ 287.897151][ T31] ? __pfx_panic+0x10/0x10 [ 287.901585][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 287.906975][ T31] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300 [ 287.913139][ T31] watchdog+0xfd2/0xfe0 [ 287.917310][ T31] ? watchdog+0x1de/0xfe0 [ 287.921650][ T31] kthread+0x70e/0x8a0 [ 287.925738][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.930420][ T31] ? __pfx_kthread+0x10/0x10 [ 287.935026][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.940233][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.945444][ T31] ? __pfx_kthread+0x10/0x10 [ 287.950049][ T31] ret_from_fork+0x3f9/0x770 [ 287.954649][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 287.959793][ T31] ? __switch_to_asm+0x39/0x70 [ 287.964558][ T31] ? __switch_to_asm+0x33/0x70 [ 287.969328][ T31] ? __pfx_kthread+0x10/0x10 [ 287.973928][ T31] ret_from_fork_asm+0x1a/0x30 [ 287.978706][ T31] [ 287.982085][ T31] Kernel Offset: disabled [ 287.986418][ T31] Rebooting in 86400 seconds..