3\x8c\x8f2\x17ts\x01\xc9\x93\x89\x1a\x1d\xdc\xe3\x99\xfd[\xab\xcb\x9e\xd3\xa0\xb6\xef.\xdb\xb8\x17@\xcd\x19iF\xa6X4\xb7S\xd0\xd1K7\xbb\xdd\xa3\x19a\x11\xdd\xac\xcc\xd8p[\xb6Ln\x9du\x94\xcb\x03e\x7f\xe7\x8c\xbd8-\xdd|~\x16\xbf\x19\x83\xb2,\x81\x95\x8f\xa5\x04\xe7\xbe_4\xb3\x82\x18.\xcc\x96\xeb\xf5\x81G\x8f\xe6\xc4\xceV\x1aH5\x9c\xc7\xd6\xee\xfe5\xe4e\xfa\xb4\x03\xe5\xecN\xfa\xcd\xd2\x85\xacp\x1bR7X\xdeY\xd2\x8b\xd3\xc7:s]D\xb0_\x9c\xfe\xabt\x85;\xa6`\x1f\xd9\x04y\x18\xe5\xefuL\xd2\xee\xaew\x10&\"\xa7l\xfc\xf3\xa5\xec\xf9\xb1^\xd7R\x9bm\xa6?\xd9>y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10y`\xd8\x10 /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.290599] kworker/u4:4 D24840 2096 2 0x80000000 [ 429.290620] Workqueue: events_unbound fsnotify_mark_destroy_workfn [ 429.290634] ffff8801d785c740 0000000000000000 ffff8801d3b0b180 ffff8801da6797c0 [ 429.290646] ffff8801db721018 ffff8801ad9f77c0 ffffffff828075c2 0000000000000096 [ 429.290656] ffffffff83cdf6c0 ffffffff830d2c20 00000000000078e9 ffff8801db7218f0 [ 429.290658] Call Trace: [ 429.290682] [] ? __schedule+0x662/0x1b10 [ 429.290691] [] schedule+0x7f/0x1b0 [ 429.290699] [] schedule_timeout+0x735/0xe20 [ 429.290714] [] ? mod_timer+0x5b2/0xf80 [ 429.290725] [] ? calc_wheel_index+0x33/0x1b0 [ 429.290732] [] ? usleep_range+0x140/0x140 [ 429.290740] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 429.290749] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 429.290763] [] ? mark_held_locks+0xc7/0x130 [ 429.290771] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 429.290778] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 429.290787] [] wait_for_common+0x3ef/0x5d0 [ 429.290795] [] ? out_of_line_wait_on_atomic_t+0x1e0/0x1e0 [ 429.290804] [] ? wake_up_q+0xe0/0xe0 [ 429.290812] [] ? srcu_reschedule+0x85/0x310 [ 429.290819] [] ? srcu_advance_batches+0x1e4/0x430 [ 429.290827] [] wait_for_completion+0x18/0x20 [ 429.290835] [] __synchronize_srcu+0x254/0x3b0 [ 429.290842] [] ? srcu_advance_batches+0x430/0x430 [ 429.290850] [] ? trace_raw_output_rcu_utilization+0x150/0x150 [ 429.290859] [] ? fsnotify_mark_destroy_list+0x80/0x390 [ 429.290866] [] ? fsnotify_mark_destroy_list+0x103/0x390 [ 429.290874] [] synchronize_srcu+0x1e/0x40 [ 429.290882] [] fsnotify_mark_destroy_list+0x10f/0x390 [ 429.290892] [] ? debug_object_deactivate+0x214/0x340 [ 429.290900] [] ? fsnotify_init_mark+0xa0/0xa0 [ 429.290909] [] fsnotify_mark_destroy_workfn+0xe/0x10 [ 429.290917] [] process_one_work+0x831/0x15f0 [ 429.290925] [] ? process_one_work+0x774/0x15f0 [ 429.290933] [] ? cancel_delayed_work_sync+0x20/0x20 [ 429.290941] [] worker_thread+0xd6/0x1140 [ 429.290950] [] kthread+0x26d/0x300 [ 429.290957] [] ? process_one_work+0x15f0/0x15f0 [ 429.290964] [] ? kthread_park+0xa0/0xa0 [ 429.290972] [] ? __switch_to_asm+0x34/0x70 [ 429.290980] [] ? kthread_park+0xa0/0xa0 [ 429.290986] [] ? kthread_park+0xa0/0xa0 [ 429.290993] [] ret_from_fork+0x5c/0x70 [ 429.290997] [ 429.290997] Showing all locks held in the system: [ 429.291004] 2 locks held by khungtaskd/24: [ 429.291023] #0: (rcu_read_lock){......}, at: [] watchdog+0x11c/0xa20 [ 429.291039] #1: (tasklist_lock){.+.+..}, at: [] debug_show_all_locks+0x79/0x218 [ 429.291047] 1 lock held by rsyslogd/1890: [ 429.291062] #0: (&f->f_pos_lock){+.+.+.}, at: [] __fdget_pos+0xac/0xd0 [ 429.291065] 2 locks held by getty/2018: [ 429.291081] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x32/0x40 [ 429.291106] #1: (&ldata->atomic_read_lock){+.+.+.}, at: [] n_tty_read+0x202/0x16e0 [ 429.291112] 2 locks held by kworker/u4:4/2096: [ 429.291124] #0: ("events_unbound"){.+.+.+}, at: [] process_one_work+0x73c/0x15f0 [ 429.291136] #1: ((reaper_work).work){+.+...}, at: [] process_one_work+0x774/0x15f0 [ 429.291153] 1 lock held by init/8361: [ 429.291166] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 [ 429.291170] 1 lock held by init/9419: [ 429.291189] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 [ 429.291194] 1 lock held by init/10559: [ 429.291206] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 [ 429.291210] 1 lock held by init/10561: [ 429.291222] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 [ 429.291226] 1 lock held by init/10563: [ 429.291238] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 [ 429.291241] 1 lock held by init/10564: [ 429.291253] #0: (tty_mutex){+.+.+.}, at: [] tty_open+0x476/0xdf0 [ 429.291256] [ 429.291258] ============================================= [ 429.291258] [ 429.291262] NMI backtrace for cpu 1 [ 429.291270] CPU: 1 PID: 24 Comm: khungtaskd Not tainted 4.9.141+ #23 [ 429.291281] ffff8801d9907d08 ffffffff81b42e79 0000000000000000 0000000000000001 [ 429.291291] 0000000000000001 0000000000000001 ffffffff810983b0 ffff8801d9907d40 [ 429.291300] ffffffff81b4df89 0000000000000001 0000000000000000 0000000000000003 [ 429.291302] Call Trace: [ 429.291313] [] dump_stack+0xc1/0x128 [ 429.291325] [] ? irq_force_complete_move+0x330/0x330 [ 429.291333] [] nmi_cpu_backtrace.cold.0+0x48/0x87 [ 429.291341] [] ? irq_force_complete_move+0x330/0x330 [ 429.291349] [] nmi_trigger_cpumask_backtrace+0x12c/0x151 [ 429.291359] [] arch_trigger_cpumask_backtrace+0x14/0x20 [ 429.291366] [] watchdog+0x6ad/0xa20 [ 429.291372] [] ? watchdog+0x11c/0xa20 [ 429.291379] [] kthread+0x26d/0x300 [ 429.291386] [] ? reset_hung_task_detector+0x20/0x20 [ 429.291393] [] ? kthread_park+0xa0/0xa0 [ 429.291400] [] ? __switch_to_asm+0x34/0x70 [ 429.291408] [] ? kthread_park+0xa0/0xa0 [ 429.291415] [] ? kthread_park+0xa0/0xa0 [ 429.291422] [] ret_from_fork+0x5c/0x70 [ 429.291430] Sending NMI from CPU 1 to CPUs 0: [ 429.291747] NMI backtrace for cpu 0 [ 429.291751] CPU: 0 PID: 10725 Comm: syz-executor.2 Not tainted 4.9.141+ #23 [ 429.291754] task: ffff8801cdc397c0 task.stack: ffff8801c5bc0000 [ 429.291758] RIP: 0010:[] c [] __schedule+0x17/0x1b10 [ 429.291761] RSP: 0018:ffff8801c5bc7c60 EFLAGS: 00000246 [ 429.291764] RAX: 0000000000000007 RBX: 0000000000000246 RCX: 1ffff10039b87412 [ 429.291768] RDX: 0000000000000000 RSI: ffff8801cdc3a070 RDI: 0000000000000001 [ 429.291771] RBP: ffff8801c5bc7c88 R08: ffff8801cdc3a090 R09: 0000000000000000 [ 429.291775] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 429.291778] R13: 0000000000021000 R14: 0000000000000000 R15: 0000000000000000 [ 429.291782] FS: 0000000000000000(0000) GS:ffff8801db600000(0063) knlGS:0000000009673900 [ 429.291785] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 429.291788] CR2: 0000000009674194 CR3: 00000001d3b59000 CR4: 00000000001606b0 [ 429.291790] Stack: [ 429.291794] 0000000000000246c dffffc0000000000c 0000000000000000c 0000000000000000c [ 429.291798] 0000000000000000c ffff8801c5bc7ca8c ffffffff828094fbc 0000000000000246c [ 429.291801] ffff8801cdc397c0c ffff8801c5bc7dc8c ffffffff82818214c 0000000000000000c [ 429.291803] Call Trace: [ 429.291806] [] preempt_schedule_irq+0x4b/0x90 [ 429.291809] [] retint_kernel+0x1b/0x2d [ 429.291812] [] ? lock_acquire+0x173/0x3e0 [ 429.291815] [] ? do_mprotect_pkey+0x189/0x650 [ 429.291818] [] down_write_killable+0x44/0xc0 [ 429.291821] [] ? do_mprotect_pkey+0x189/0x650 [ 429.291824] [] do_mprotect_pkey+0x189/0x650 [ 429.291827] [] ? mprotect_fixup+0x8a0/0x8a0 [ 429.291830] [] ? up_read+0x1a/0x40 [ 429.291832] [] ? __do_page_fault+0x554/0xa60 [ 429.291835] [] SyS_mprotect+0x2a/0x40 [ 429.291838] [] ? do_mprotect_pkey+0x650/0x650 [ 429.291841] [] do_fast_syscall_32+0x2f1/0xa10 [ 429.291845] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 429.291848] [] entry_SYSENTER_compat+0x90/0xa2 [ 429.291858] Code: cfe ce9 ca8 cfd cff cff c0f c1f c40 c00 c66 c2e c0f c1f c84 c00 c00 c00 c00 c00 c55 c48 c89 ce5 c41 c57 c41 c56 c41 c55 c49 cc7 cc5 c00 c10 c02 c00 c41 c54 c41 c89 cfc c53 c<4c> c89 ceb c48 c83 cec c50 c40 c88 c7d ca7 ce8 cb9 c0f c3a cff c48 cba c00 c00 c00 c [ 429.292450] Kernel panic - not syncing: hung_task: blocked tasks [ 429.292457] CPU: 1 PID: 24 Comm: khungtaskd Not tainted 4.9.141+ #23 [ 429.292470] ffff8801d9907cc8 ffffffff81b42e79 ffffffff82a78560 00000000ffffffff [ 429.292479] 0000000000000000 0000000000000001 dffffc0000000000 ffff8801d9907d88 [ 429.292489] ffffffff813f7125 0000000041b58ab3 ffffffff82e2b62b ffffffff813f6f66 [ 429.292491] Call Trace: [ 429.292500] [] dump_stack+0xc1/0x128 [ 429.292508] [] panic+0x1bf/0x39f [ 429.292515] [] ? add_taint.cold.5+0x16/0x16 [ 429.292524] [] ? nmi_trigger_cpumask_backtrace+0x102/0x151 [ 429.292531] [] watchdog+0x6be/0xa20 [ 429.292538] [] ? watchdog+0x11c/0xa20 [ 429.292546] [] kthread+0x26d/0x300 [ 429.292553] [] ? reset_hung_task_detector+0x20/0x20 [ 429.292561] [] ? kthread_park+0xa0/0xa0 [ 429.292568] [] ? __switch_to_asm+0x34/0x70 [ 429.292575] [] ? kthread_park+0xa0/0xa0 [ 429.292582] [] ? kthread_park+0xa0/0xa0 [ 429.292589] [] ret_from_fork+0x5c/0x70 [ 429.292848] Kernel Offset: disabled