Warning: Permanently added '10.128.0.188' (ECDSA) to the list of known hosts. executing program [ 510.725069][ T2034] block nbd0: Possible stuck request ffff88801fc28000: control (read@0,512B). Runtime 30 seconds [ 540.802239][ T2034] block nbd0: Possible stuck request ffff88801fc28000: control (read@0,512B). Runtime 60 seconds [ 570.879715][ T2034] block nbd0: Possible stuck request ffff88801fc28000: control (read@0,512B). Runtime 90 seconds [ 600.957465][ T2034] block nbd0: Possible stuck request ffff88801fc28000: control (read@0,512B). Runtime 120 seconds [ 631.035498][ T2034] block nbd0: Possible stuck request ffff88801fc28000: control (read@0,512B). Runtime 150 seconds [ 661.113596][ T2034] block nbd0: Possible stuck request ffff88801fc28000: control (read@0,512B). Runtime 180 seconds [ 691.191902][ T2034] block nbd0: Possible stuck request ffff88801fc28000: control (read@0,512B). Runtime 210 seconds [ 721.270259][ T2034] block nbd0: Possible stuck request ffff88801fc28000: control (read@0,512B). Runtime 240 seconds [ 721.270314][ T1644] INFO: task syz-executor519:8442 blocked for more than 143 seconds. [ 721.289110][ T1644] Not tainted 5.14.0-rc7-syzkaller #0 [ 721.295419][ T1644] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.304266][ T1644] task:syz-executor519 state:D stack:22808 pid: 8442 ppid: 8441 flags:0x00004004 [ 721.313569][ T1644] Call Trace: [ 721.316850][ T1644] __schedule+0xc07/0x11f0 [ 721.321441][ T1644] ? __sched_text_start+0x8/0x8 [ 721.326344][ T1644] schedule+0x14b/0x210 [ 721.330551][ T1644] schedule_timeout+0x98/0x2f0 [ 721.335362][ T1644] ? console_conditional_schedule+0x40/0x40 [ 721.341295][ T1644] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 721.347365][ T1644] ? print_irqtrace_events+0x220/0x220 [ 721.352872][ T1644] ? _raw_spin_unlock_irq+0x1f/0x40 [ 721.358069][ T1644] ? lockdep_hardirqs_on+0x8d/0x130 [ 721.363317][ T1644] do_wait_for_common+0x2da/0x480 [ 721.368348][ T1644] ? console_conditional_schedule+0x40/0x40 [ 721.374281][ T1644] ? wait_for_completion_killable_timeout+0x60/0x60 [ 721.380921][ T1644] ? _raw_spin_lock_irq+0xba/0xf0 [ 721.385951][ T1644] ? xfs_buf_get_uncached+0x1b6/0x2b0 [ 721.391416][ T1644] ? trace_xfs_buf_iowait+0xe4/0x270 [ 721.396725][ T1644] wait_for_completion+0x48/0x60 [ 721.401924][ T1644] ? xfs_buf_read_uncached+0x1fa/0x390 [ 721.407396][ T1644] __xfs_buf_submit+0x39d/0x6d0 [ 721.412305][ T1644] xfs_buf_read_uncached+0x1fa/0x390 [ 721.417602][ T1644] ? xfs_buf_readahead_map+0x160/0x160 [ 721.423129][ T1644] ? pcpu_alloc+0xff3/0x17b0 [ 721.427778][ T1644] ? pcpu_alloc+0x10b9/0x17b0 [ 721.432559][ T1644] xfs_readsb+0x1dc/0x670 [ 721.436949][ T1644] ? _raw_spin_lock+0x40/0x40 [ 721.441678][ T1644] ? xfs_sb_validate_fsb_count+0x170/0x170 [ 721.447492][ T1644] ? __percpu_counter_init+0x1fd/0x230 [ 721.453048][ T1644] xfs_fs_fill_super+0x483/0x1780 [ 721.458112][ T1644] ? vscnprintf+0x80/0x80 [ 721.462877][ T1644] get_tree_bdev+0x406/0x630 [ 721.467556][ T1644] ? xfs_fs_reconfigure+0x8b0/0x8b0 [ 721.472802][ T1644] vfs_get_tree+0x86/0x270 [ 721.477221][ T1644] path_mount+0x1981/0x2c10 [ 721.481823][ T1644] ? __check_object_size+0x2f3/0x3f0 [ 721.487147][ T1644] ? mark_mounts_for_expiry+0x520/0x520 [ 721.492739][ T1644] ? getname_flags+0x1fe/0x640 [ 721.497507][ T1644] __se_sys_mount+0x2f9/0x3b0 [ 721.502222][ T1644] ? print_irqtrace_events+0x220/0x220 [ 721.507687][ T1644] ? vtime_user_exit+0x2b2/0x3e0 [ 721.512742][ T1644] ? __x64_sys_mount+0xc0/0xc0 [ 721.517528][ T1644] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 721.523562][ T1644] ? lockdep_hardirqs_on+0x8d/0x130 [ 721.528764][ T1644] ? __x64_sys_mount+0x1c/0xc0 [ 721.533593][ T1644] do_syscall_64+0x3d/0xb0 [ 721.538076][ T1644] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 721.544029][ T1644] RIP: 0033:0x444239 [ 721.547924][ T1644] RSP: 002b:00007ffd4feb56f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 721.556373][ T1644] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000444239 [ 721.564416][ T1644] RDX: 0000000020000140 RSI: 0000000020000000 RDI: 00000000200000c0 [ 721.572443][ T1644] RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd4feb5898 [ 721.580477][ T1644] R10: 0000000000008002 R11: 0000000000000246 R12: 0000000000403550 [ 721.588443][ T1644] R13: 431bde82d7b634db R14: 00000000004b2018 R15: 00000000004004a0 [ 721.596510][ T1644] [ 721.596510][ T1644] Showing all locks held in the system: [ 721.604293][ T1644] 1 lock held by khungtaskd/1644: [ 721.609308][ T1644] #0: ffffffff8c717ec0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 721.618701][ T1644] 2 locks held by in:imklog/8141: [ 721.623783][ T1644] #0: ffff888023be8870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 [ 721.633058][ T1644] #1: ffffffff8c717ec0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 [ 721.642508][ T1644] 1 lock held by syz-executor519/8442: [ 721.647960][ T1644] #0: ffff888030e060e0 (&type->s_umount_key#49/1){+.+.}-{3:3}, at: alloc_super+0x1c8/0x860 [ 721.658147][ T1644] [ 721.660546][ T1644] ============================================= [ 721.660546][ T1644] [ 721.668953][ T1644] NMI backtrace for cpu 1 [ 721.673321][ T1644] CPU: 1 PID: 1644 Comm: khungtaskd Not tainted 5.14.0-rc7-syzkaller #0 [ 721.681641][ T1644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 721.691676][ T1644] Call Trace: [ 721.694935][ T1644] dump_stack_lvl+0x1d3/0x29f [ 721.699598][ T1644] ? show_regs_print_info+0x12/0x12 [ 721.704792][ T1644] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 721.710543][ T1644] ? printk+0xc0/0x108 [ 721.714592][ T1644] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 721.720288][ T1644] ? wake_up_klogd+0xb2/0xf0 [ 721.724859][ T1644] ? hw_nmi_get_sample_period+0x60/0x60 [ 721.730456][ T1644] nmi_cpu_backtrace+0x16c/0x190 [ 721.735377][ T1644] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 721.741435][ T1644] nmi_trigger_cpumask_backtrace+0x191/0x2f0 [ 721.747409][ T1644] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 721.753479][ T1644] watchdog+0xd06/0xd50 [ 721.757678][ T1644] kthread+0x453/0x480 [ 721.761755][ T1644] ? hungtask_pm_notify+0x50/0x50 [ 721.766844][ T1644] ? kthread_blkcg+0xd0/0xd0 [ 721.771418][ T1644] ret_from_fork+0x1f/0x30 [ 721.775988][ T1644] Sending NMI from CPU 1 to CPUs 0: [ 721.781834][ C0] NMI backtrace for cpu 0 [ 721.781840][ C0] CPU: 0 PID: 4862 Comm: systemd-journal Not tainted 5.14.0-rc7-syzkaller #0 [ 721.781846][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 721.781851][ C0] RIP: 0010:__lock_acquire+0x5fc/0x6100 [ 721.781856][ C0] Code: 00 fc ff df 4c 8b 7c 24 58 4c 8b 64 24 50 48 81 c3 b8 00 00 00 48 89 d8 48 c1 e8 03 8a 04 10 84 c0 0f 85 c1 25 00 00 44 8a 33 <48> 8b 44 24 60 8a 04 10 84 c0 0f 85 d2 25 00 00 41 8b 1c 24 81 e3 [ 721.781863][ C0] RSP: 0018:ffffc9000162f940 EFLAGS: 00000046 [ 721.781871][ C0] RAX: 1ffffffff1f10400 RBX: ffffffff8f882478 RCX: ffffffff816219b8 [ 721.781876][ C0] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8faf3dd0 [ 721.781880][ C0] RBP: ffffc9000162fcd0 R08: dffffc0000000000 R09: fffffbfff1f5e7bb [ 721.781885][ C0] R10: fffffbfff1f5e7bb R11: 0000000000000000 R12: ffff888015bc5ed0 [ 721.781890][ C0] R13: ffff888015bc5eb8 R14: 00000000000c0000 R15: ffff888015bc54c0 [ 721.781895][ C0] FS: 00007f6e3c3a48c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 721.781899][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 721.781903][ C0] CR2: 00007f6e39776000 CR3: 00000000213b3000 CR4: 00000000001506f0 [ 721.781908][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 721.781912][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 721.781916][ C0] Call Trace: [ 721.781919][ C0] ? __lock_acquire+0x145b/0x6100 [ 721.781922][ C0] ? stack_trace_save+0x1e0/0x1e0 [ 721.781926][ C0] ? trace_lock_acquire+0x190/0x190 [ 721.781929][ C0] ? trace_lock_acquire+0x190/0x190 [ 721.781932][ C0] ? stack_trace_save+0x104/0x1e0 [ 721.781936][ C0] ? stack_trace_snprint+0xe0/0xe0 [ 721.781944][ C0] ? rcu_read_lock_sched_held+0x87/0x110 [ 721.781948][ C0] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 721.781951][ C0] ? __fput+0x7b0/0x7b0 [ 721.781954][ C0] ? kasan_save_stack+0x3e/0x50 [ 721.781957][ C0] ? kasan_save_stack+0x27/0x50 [ 721.781960][ C0] ? kasan_record_aux_stack+0xf1/0x130 [ 721.781964][ C0] ? call_rcu+0x1a0/0xa20 [ 721.781967][ C0] ? task_work_run+0x146/0x1c0 [ 721.781970][ C0] ? exit_to_user_mode_prepare+0x201/0x220 [ 721.781974][ C0] ? syscall_exit_to_user_mode+0x26/0x60 [ 721.781977][ C0] ? do_syscall_64+0x4c/0xb0 [ 721.781980][ C0] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 721.781984][ C0] ? rcu_read_lock_sched_held+0x87/0x110 [ 721.781988][ C0] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 721.781991][ C0] lock_acquire+0x182/0x4a0 [ 721.781994][ C0] ? __context_tracking_exit+0x7a/0xd0 [ 721.781998][ C0] ? read_lock_is_recursive+0x10/0x10 [ 721.782001][ C0] ? __context_tracking_enter+0xa5/0xf0 [ 721.782005][ C0] ? __lock_acquire+0x6100/0x6100 [ 721.782008][ C0] vtime_user_exit+0xb9/0x3e0 [ 721.782012][ C0] ? __context_tracking_exit+0x7a/0xd0 [ 721.782015][ C0] ? __context_tracking_exit+0x7a/0xd0 [ 721.782018][ C0] __context_tracking_exit+0x7a/0xd0 [ 721.782022][ C0] syscall_enter_from_user_mode+0x199/0x1b0 [ 721.782025][ C0] do_syscall_64+0x1e/0xb0 [ 721.782029][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 721.782032][ C0] RIP: 0033:0x7f6e3b65f9c7 [ 721.782037][ C0] Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48 [ 721.782045][ C0] RSP: 002b:00007ffebb868098 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 [ 721.782053][ C0] RAX: ffffffffffffffda RBX: 00007ffebb86b0c0 RCX: 00007f6e3b65f9c7 [ 721.782057][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055c77e4df9a3 [ 721.782062][ C0] RBP: 00007ffebb8681e0 R08: 000055c77e4d53e5 R09: 0000000000000018 [ 721.782066][ C0] R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 [ 721.782071][ C0] R13: 0000000000000000 R14: 000055c77fce98a0 R15: 00007ffebb8686d0 [ 721.782276][ T1644] Kernel panic - not syncing: hung_task: blocked tasks [ 722.164339][ T1644] CPU: 1 PID: 1644 Comm: khungtaskd Not tainted 5.14.0-rc7-syzkaller #0 [ 722.172651][ T1644] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 722.182690][ T1644] Call Trace: [ 722.185961][ T1644] dump_stack_lvl+0x1ae/0x29f [ 722.190629][ T1644] ? show_regs_print_info+0x12/0x12 [ 722.195813][ T1644] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 722.201524][ T1644] ? lockdep_hardirqs_off+0x69/0xf0 [ 722.206733][ T1644] panic+0x2e1/0x850 [ 722.210679][ T1644] ? _raw_spin_unlock+0x40/0x40 [ 722.215514][ T1644] ? nmi_trigger_cpumask_backtrace+0x236/0x2f0 [ 722.221653][ T1644] ? nmi_panic+0x90/0x90 [ 722.225879][ T1644] ? preempt_schedule_thunk+0x16/0x18 [ 722.231236][ T1644] ? nmi_trigger_cpumask_backtrace+0x236/0x2f0 [ 722.237372][ T1644] ? nmi_trigger_cpumask_backtrace+0x29b/0x2f0 [ 722.243511][ T1644] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2f0 [ 722.249645][ T1644] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 722.255714][ T1644] watchdog+0xd46/0xd50 [ 722.259869][ T1644] kthread+0x453/0x480 [ 722.263920][ T1644] ? hungtask_pm_notify+0x50/0x50 [ 722.268926][ T1644] ? kthread_blkcg+0xd0/0xd0 [ 722.273507][ T1644] ret_from_fork+0x1f/0x30 [ 722.279313][ T1644] Kernel Offset: disabled [ 722.283698][ T1644] Rebooting in 86400 seconds..