[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 23.315030] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 25.334569] random: sshd: uninitialized urandom read (32 bytes read) [ 25.622279] random: sshd: uninitialized urandom read (32 bytes read) [ 26.374899] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.53' (ECDSA) to the list of known hosts. [ 32.023306] random: sshd: uninitialized urandom read (32 bytes read) 2018/09/05 23:10:21 fuzzer started [ 33.376624] random: cc1: uninitialized urandom read (8 bytes read) 2018/09/05 23:10:24 connecting to host at 10.128.0.26:39599 2018/09/05 23:10:24 checking revisions... 2018/09/05 23:10:24 testing simple program... executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 185.216226] INFO: task syz-fuzzer:4897 blocked for more than 140 seconds. [ 185.223449] Not tainted 4.19.0-rc2-next-20180905+ #59 [ 185.229318] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 185.237332] syz-fuzzer D21704 4897 4895 0x00000000 [ 185.242984] Call Trace: [ 185.245591] __schedule+0x87c/0x1df0 [ 185.249333] ? __sched_text_start+0x8/0x8 [ 185.253499] ? ext4_set_page_dirty+0x254/0x340 [ 185.258180] ? graph_lock+0x170/0x170 [ 185.262004] ? print_usage_bug+0xc0/0xc0 [ 185.266119] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 185.271675] ? find_held_lock+0x36/0x1c0 [ 185.275765] schedule+0xfb/0x450 [ 185.279171] ? mark_held_locks+0xc9/0x160 [ 185.283565] ? __schedule+0x1df0/0x1df0 [ 185.287557] ? _raw_spin_unlock_irq+0x27/0x70 [ 185.292107] ? _raw_spin_unlock_irq+0x27/0x70 [ 185.296617] ? lockdep_hardirqs_on+0x421/0x5c0 [ 185.301237] ? trace_hardirqs_on+0xbd/0x2c0 [ 185.305575] ? kasan_check_read+0x11/0x20 [ 185.309763] ? __lock_page+0x585/0x7a0 [ 185.313677] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 185.318818] ? kasan_check_write+0x14/0x20 [ 185.323089] io_schedule+0x1c/0x70 [ 185.326672] __lock_page+0x5b7/0x7a0 [ 185.330404] ? __lock_page_killable+0x850/0x850 [ 185.335174] ? __sb_end_write+0xac/0xe0 [ 185.339181] ? ext4_page_mkwrite+0xa95/0x1450 [ 185.343707] ? page_cache_tree_insert+0x560/0x560 [ 185.348576] ? __lock_is_held+0xb5/0x140 [ 185.352672] ? check_same_owner+0x340/0x340 [ 185.357156] ? rcu_note_context_switch+0x680/0x680 [ 185.362140] do_page_mkwrite+0x429/0x520 [ 185.366262] ? print_bad_pte+0x5f0/0x5f0 [ 185.370377] ? pud_val+0x88/0x100 [ 185.373848] ? find_held_lock+0x36/0x1c0 [ 185.378021] __handle_mm_fault+0x2a0a/0x4350 [ 185.382473] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 185.387337] ? graph_lock+0x170/0x170 [ 185.391152] ? kasan_check_read+0x11/0x20 [ 185.395365] ? lock_downgrade+0x8f0/0x8f0 [ 185.399546] ? handle_mm_fault+0x8c4/0xc80 [ 185.403867] ? handle_mm_fault+0x8c4/0xc80 [ 185.408218] ? kasan_check_read+0x11/0x20 [ 185.412410] ? rcu_is_watching+0x8c/0x150 [ 185.416593] ? __do_page_fault+0x620/0xe50 [ 185.420885] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 185.425612] handle_mm_fault+0x53e/0xc80 [ 185.429722] ? __handle_mm_fault+0x4350/0x4350 [ 185.434322] ? find_vma+0x34/0x190 [ 185.437909] __do_page_fault+0x620/0xe50 [ 185.442008] ? mm_fault_error+0x380/0x380 [ 185.446196] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 185.451579] ? trace_hardirqs_on+0x2c0/0x2c0 [ 185.456031] do_page_fault+0xf6/0x7a4 [ 185.459948] ? vmalloc_sync_all+0x30/0x30 [ 185.464137] ? error_entry+0x70/0xd0 [ 185.467893] ? trace_hardirqs_off_caller+0xbb/0x2b0 [ 185.472957] ? trace_hardirqs_on_caller+0xc0/0x2b0 [ 185.477912] ? syscall_return_slowpath+0x5e0/0x5e0 [ 185.482861] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 185.487733] ? trace_hardirqs_on_caller+0x2b0/0x2b0 [ 185.492796] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 185.498356] ? prepare_exit_to_usermode+0x291/0x3b0 [ 185.503405] ? page_fault+0x8/0x30 [ 185.506954] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 185.511841] ? page_fault+0x8/0x30 [ 185.515483] page_fault+0x1e/0x30 [ 185.518971] RIP: 0033:0x70b581 [ 185.522186] Code: 48 89 6c 24 10 48 8d 6c 24 10 48 8b 44 24 20 48 8b 48 08 48 8b 50 10 48 8d 58 08 48 83 fa 08 0f 8c 1e 01 00 00 48 8b 54 24 28 <88> 11 48 8b 48 08 48 8b 70 10 48 83 fe 01 0f 86 44 01 00 00 48 89 [ 185.541189] RSP: 002b:000000c42015f3f0 EFLAGS: 00010212 [ 185.546597] RAX: 000000c42015f508 RBX: 000000c42015f510 RCX: 00007f913663b000 [ 185.553907] RDX: 0000000000000543 RSI: 000000000072a460 RDI: 000000c42015f348 [ 185.561197] RBP: 000000c42015f400 R08: 0000000000000000 R09: 0000000000000000 [ 185.568504] R10: 0000000000949c4a R11: 0000000000000004 R12: 0000000000000000 [ 185.575793] R13: 0000000000000020 R14: 0000000000000013 R15: 000000000000000f [ 185.583146] [ 185.583146] Showing all locks held in the system: [ 185.589634] 4 locks held by kworker/u4:3/114: [ 185.594197] #0: 00000000ec49771a ((wq_completion)"writeback"){+.+.}, at: process_one_work+0xb44/0x1aa0 [ 185.603768] #1: 0000000006bb612a ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0xb9b/0x1aa0 [ 185.614408] #2: 000000008c900010 (&fc->fs_type->s_umount_key#29){++++}, at: trylock_super+0x22/0x110 [ 185.623868] #3: 000000000210d5f0 (&sbi->s_journal_flag_rwsem){.+.+}, at: do_writepages+0x9a/0x1a0 [ 185.633064] 1 lock held by khungtaskd/794: [ 185.637368] #0: 000000003a3f0e27 (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x428 [ 185.646028] 1 lock held by khugepaged/800: [ 185.650281] #0: 00000000f1c4d70f (&mm->mmap_sem){++++}, at: collapse_huge_page+0x2bf/0x2250 [ 185.658921] 2 locks held by getty/4875: [ 185.662899] #0: 000000003272299c (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 [ 185.671181] #1: 00000000fee10f4f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 185.680406] 2 locks held by getty/4876: [ 185.684419] #0: 00000000d4d2e39c (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 [ 185.692704] #1: 00000000bf69dc6e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 185.701591] 2 locks held by getty/4877: [ 185.705575] #0: 0000000049c730cb (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 [ 185.714046] #1: 00000000551cdd76 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 185.722987] 2 locks held by getty/4878: [ 185.726987] #0: 000000005786aa00 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 [ 185.735281] #1: 0000000016fd2fc9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 185.744210] 2 locks held by getty/4879: [ 185.748193] #0: 00000000d836905f (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 [ 185.756470] #1: 00000000d6ed2b80 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 185.765381] 2 locks held by getty/4880: [ 185.769388] #0: 0000000077115452 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 [ 185.777668] #1: 00000000c844775d (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 185.786586] 2 locks held by getty/4881: [ 185.790568] #0: 00000000e04709ea (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 [ 185.798849] #1: 00000000fb2e0e5a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 185.807724] 1 lock held by syz-fuzzer/4897: [ 185.812056] #0: 00000000f1c4d70f (&mm->mmap_sem){++++}, at: __do_page_fault+0x389/0xe50 [ 185.820346] [ 185.821988] ============================================= [ 185.821988] [ 185.829131] NMI backtrace for cpu 0 [ 185.832782] CPU: 0 PID: 794 Comm: khungtaskd Not tainted 4.19.0-rc2-next-20180905+ #59 [ 185.840824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 185.850157] Call Trace: [ 185.852740] dump_stack+0x1c9/0x2b4 [ 185.856356] ? dump_stack_print_info.cold.2+0x52/0x52 [ 185.861530] ? vprintk_default+0x28/0x30 [ 185.865615] ? lapic_can_unplug_cpu.cold.30+0x3f/0x3f [ 185.870885] nmi_cpu_backtrace.cold.4+0x48/0x88 [ 185.875662] ? rcu_cleanup_dead_rnp+0x200/0x200 [ 185.880319] ? lapic_can_unplug_cpu.cold.30+0x3f/0x3f [ 185.885553] nmi_trigger_cpumask_backtrace+0x1b6/0x1cd [ 185.890828] arch_trigger_cpumask_backtrace+0x14/0x20 [ 185.896000] watchdog+0xb39/0x1040 [ 185.899755] ? reset_hung_task_detector+0xd0/0xd0 [ 185.904590] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 185.909802] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 185.914939] ? lockdep_hardirqs_on+0x421/0x5c0 [ 185.919511] ? trace_hardirqs_on+0xbd/0x2c0 [ 185.923815] ? kasan_check_read+0x11/0x20 [ 185.928015] ? __kthread_parkme+0xd7/0x1b0 [ 185.932244] ? kasan_check_write+0x14/0x20 [ 185.936462] ? do_raw_spin_lock+0xc1/0x200 [ 185.940788] ? __kthread_parkme+0x58/0x1b0 [ 185.945115] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 185.950642] ? __kthread_parkme+0x106/0x1b0 [ 185.955251] kthread+0x35a/0x420 [ 185.958603] ? reset_hung_task_detector+0xd0/0xd0 [ 185.963436] ? kthread_bind+0x40/0x40 [ 185.967233] ret_from_fork+0x3a/0x50 [ 185.971032] Sending NMI from CPU 0 to CPUs 1: [ 185.976328] NMI backtrace for cpu 1 [ 185.976333] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.0-rc2-next-20180905+ #59 [ 185.976337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 185.976340] RIP: 0010:check_preempt_curr+0x6f/0x3a0 [ 185.976348] Code: 00 fc ff df 4c 89 c7 48 c1 ef 03 80 3c 07 00 0f 85 9a 02 00 00 4c 8b b9 20 0a 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7f 78 <49> 89 f9 49 c1 e9 03 41 80 3c 01 00 0f 85 4b 02 00 00 4d 8b 67 78 [ 185.976351] RSP: 0018:ffff8801db107200 EFLAGS: 00000046 [ 185.976356] RAX: dffffc0000000000 RBX: ffff8801b1efe080 RCX: ffff8801db12cc80 [ 185.976360] RDX: 0000000000000000 RSI: ffff8801b1efe080 RDI: ffff8801d9f0e3f8 [ 185.976364] RBP: ffff8801db107248 R08: ffff8801db12d6a0 R09: ffff8801db12d750 [ 185.976367] R10: ffffed003b6246de R11: ffff8801db1236f3 R12: ffff8801db12cc80 [ 185.976371] R13: ffffffff872a9a80 R14: ffff8801db107308 R15: ffff8801d9f0e380 [ 185.976374] FS: 0000000000000000(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 185.976377] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 185.976381] CR2: ffffffffff600400 CR3: 00000001b6048000 CR4: 00000000001406e0 [ 185.976383] Call Trace: [ 185.976384] [ 185.976387] ? enqueue_entity+0x2050/0x2050 [ 185.976389] ttwu_do_wakeup+0x90/0x6b0 [ 185.976391] ? check_preempt_curr+0x3a0/0x3a0 [ 185.976393] ? __lock_is_held+0xb5/0x140 [ 185.976396] ttwu_do_activate+0x146/0x1f0 [ 185.976398] try_to_wake_up+0x928/0x1250 [ 185.976400] ? migrate_swap_stop+0x850/0x850 [ 185.976403] ? find_held_lock+0x36/0x1c0 [ 185.976405] ? kasan_check_read+0x11/0x20 [ 185.976407] ? rcu_is_watching+0x8c/0x150 [ 185.976410] ? rcu_pm_notify+0xc0/0xc0 [ 185.976412] wake_up_process+0x10/0x20 [ 185.976414] hrtimer_wakeup+0x48/0x60 [ 185.976416] __hrtimer_run_queues+0x3eb/0xff0 [ 185.976419] ? clock_was_set_work+0x30/0x30 [ 185.976421] ? hrtimer_start_range_ns+0xcd0/0xcd0 [ 185.976424] ? pvclock_read_flags+0x160/0x160 [ 185.976426] ? trace_hardirqs_on+0x2c0/0x2c0 [ 185.976429] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 185.976432] ? ktime_get_update_offsets_now+0x3db/0x5d0 [ 185.976434] ? do_timer+0x50/0x50 [ 185.976436] ? trace_hardirqs_on+0x2c0/0x2c0 [ 185.976438] ? do_raw_spin_lock+0xc1/0x200 [ 185.976441] hrtimer_interrupt+0x2f3/0x750 [ 185.976443] smp_apic_timer_interrupt+0x16d/0x6a0 [ 185.976446] ? smp_call_function_single_interrupt+0x5d0/0x5d0 [ 185.976449] ? interrupt_entry+0xb5/0xf0 [ 185.976452] ? trace_hardirqs_off_caller+0xbb/0x2b0 [ 185.976455] ? try_to_wake_up+0x10a/0x1250 [ 185.976459] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 185.976461] ? trace_hardirqs_on_caller+0x2b0/0x2b0 [ 185.976464] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 185.976466] apic_timer_interrupt+0xf/0x20 [ 185.976469] RIP: 0010:__do_softirq+0x2a3/0xa74 [ 185.976477] Code: c7 c0 b8 be 11 88 48 c1 e8 03 42 80 3c 28 00 0f 85 aa 06 00 00 48 83 3d 22 bc 11 01 00 0f 84 05 06 00 00 fb 66 0f 1f 44 00 00 <48> c7 85 68 fe ff ff 00 91 00 88 b8 ff ff ff ff 0f bc 85 74 fe ff [ 185.976480] RSP: 0018:ffff8801db107af0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 185.976486] RAX: 1ffffffff10237d7 RBX: ffff8801d9f0e380 RCX: 0000000000000000 [ 185.976489] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d9f0ebbc [ 185.976493] RBP: ffff8801db107cc8 R08: ffff8801d9f0e380 R09: 0000000000000000 [ 185.976496] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801d9f0e380 [ 185.976500] R13: dffffc0000000000 R14: ffff8801db107e68 R15: 0000000000000001 [ 185.976502] ? apic_timer_interrupt+0xa/0x20 [ 185.976505] ? __irqentry_text_end+0x1f9f00/0x1f9f00 [ 185.976507] ? rcu_is_watching+0x8c/0x150 [ 185.976510] ? rcu_pm_notify+0xc0/0xc0 [ 185.976512] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 185.976515] ? trace_hardirqs_off+0xb8/0x2b0 [ 185.976517] ? irq_exit+0x210/0x210 [ 185.976519] ? sched_ttwu_pending+0x8e/0x280 [ 185.976522] ? trace_hardirqs_on+0x2c0/0x2c0 [ 185.976524] ? sched_set_stop_task+0x290/0x290 [ 185.976526] irq_exit+0x1d6/0x210 [ 185.976528] scheduler_ipi+0x53c/0xa50 [ 185.976531] ? migration_cpu_stop+0x470/0x470 [ 185.976533] ? rcu_nmi_exit+0x259/0x2d0 [ 185.976535] ? rcu_idle_enter+0x480/0x480 [ 185.976538] ? clockevents_program_event+0x140/0x370 [ 185.976540] ? trace_hardirqs_off+0xb8/0x2b0 [ 185.976543] ? rcu_is_watching+0x8c/0x150 [ 185.976545] ? task_prio+0x50/0x50 [ 185.976547] smp_reschedule_interrupt+0xfd/0x5e0 [ 185.976550] ? smp_thermal_interrupt+0x710/0x710 [ 185.976552] ? interrupt_entry+0xb5/0xf0 [ 185.976555] ? trace_hardirqs_off_caller+0xbb/0x2b0 [ 185.976557] ? trace_hardirqs_off_caller+0xbb/0x2b0 [ 185.976560] ? trace_hardirqs_off+0xb8/0x2b0 [ 185.976562] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 185.976565] ? trace_hardirqs_on_caller+0x2b0/0x2b0 [ 185.976568] ? trace_hardirqs_on_caller+0x2b0/0x2b0 [ 185.976570] ? task_prio+0x50/0x50 [ 185.976572] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 185.976575] reschedule_interrupt+0xf/0x20 [ 185.976576] [ 185.976579] RIP: 0010:native_safe_halt+0x6/0x10 [ 185.976587] Code: c7 48 89 45 d8 e8 ca 7a e5 fa 48 8b 45 d8 e9 d2 fe ff ff 48 89 df e8 b9 7a e5 fa eb 8a 90 90 90 90 90 90 90 55 48 89 e5 fb f4 <5d> c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 f4 5d c3 90 90 90 90 90 [ 185.976589] RSP: 0018:ffff8801d9f1fc30 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff02 [ 185.976595] RAX: dffffc0000000000 RBX: 1ffff1003b3e3f8a RCX: 0000000000000000 [ 185.976599] RDX: 1ffffffff10237d8 RSI: 0000000000000001 RDI: ffffffff8811bec0 [ 185.976602] RBP: ffff8801d9f1fc30 R08: ffff8801d9f0e380 R09: 0000000000000000 [ 185.976606] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 185.976609] R13: ffff8801d9f1fcf0 R14: 0000000000000001 R15: 0000000000000000 [ 185.976611] default_idle+0xc2/0x410 [ 185.976614] ? kasan_check_write+0x14/0x20 [ 185.976616] ? __sched_text_end+0x1/0x1 [ 185.976618] ? rcu_idle_enter+0x30a/0x480 [ 185.976621] ? rcu_eqs_special_set+0x1b0/0x1b0 [ 185.976623] ? tsc_verify_tsc_adjust+0x109/0x380 [ 185.976626] ? trace_hardirqs_off_caller+0x2b0/0x2b0 [ 185.976628] ? mark_tsc_async_resets+0x20/0x20 [ 185.976631] ? trace_hardirqs_on+0x2c0/0x2c0 [ 185.976633] ? __tick_nohz_idle_restart_tick+0x28c/0x3c0 [ 185.976636] arch_cpu_idle+0x10/0x20 [ 185.976638] default_idle_call+0x6d/0x90 [ 185.976640] do_idle+0x3aa/0x580 [ 185.976642] ? retint_kernel+0x10/0x10 [ 185.976645] ? arch_cpu_idle_exit+0x70/0x70 [ 185.976647] cpu_startup_entry+0x10c/0x120 [ 185.976649] ? cpu_in_idle+0x20/0x20 [ 185.976652] start_secondary+0x433/0x5d0 [ 185.976654] ? set_cpu_sibling_map+0x18b0/0x18b0 [ 185.976657] secondary_startup_64+0xa4/0xb0 [ 185.976666] Kernel panic - not syncing: hung_task: blocked tasks [ 185.976685] CPU: 0 PID: 794 Comm: khungtaskd Not tainted 4.19.0-rc2-next-20180905+ #59 [ 186.607620] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 186.616995] Call Trace: [ 186.619597] dump_stack+0x1c9/0x2b4 [ 186.623243] ? dump_stack_print_info.cold.2+0x52/0x52 [ 186.628443] ? printk_safe_log_store+0x2f0/0x2f0 [ 186.633211] panic+0x238/0x4e7 [ 186.636411] ? add_taint.cold.5+0x16/0x16 [ 186.640565] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 186.646108] ? nmi_trigger_cpumask_backtrace+0x18c/0x1cd [ 186.651564] ? printk_safe_flush+0xd7/0x130 [ 186.655893] watchdog+0xb4a/0x1040 [ 186.659448] ? reset_hung_task_detector+0xd0/0xd0 [ 186.664299] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 186.669452] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 186.674559] ? lockdep_hardirqs_on+0x421/0x5c0 [ 186.679147] ? trace_hardirqs_on+0xbd/0x2c0 [ 186.683471] ? kasan_check_read+0x11/0x20 [ 186.687623] ? __kthread_parkme+0xd7/0x1b0 [ 186.691870] ? kasan_check_write+0x14/0x20 [ 186.696113] ? do_raw_spin_lock+0xc1/0x200 [ 186.700365] ? __kthread_parkme+0x58/0x1b0 [ 186.704623] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 186.710168] ? __kthread_parkme+0x106/0x1b0 [ 186.714495] kthread+0x35a/0x420 [ 186.717868] ? reset_hung_task_detector+0xd0/0xd0 [ 186.722716] ? kthread_bind+0x40/0x40 [ 186.726703] ret_from_fork+0x3a/0x50 [ 186.731383] Dumping ftrace buffer: [ 186.734955] (ftrace buffer empty) [ 186.738664] Kernel Offset: disabled [ 186.742279] Rebooting in 86400 seconds..