INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes [ 347.796664] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.60' (ECDSA) to the list of known hosts. [ 353.458830] random: sshd: uninitialized urandom read (32 bytes read) [ 353.554075] audit: type=1400 audit(1546348921.475:8): avc: denied { map } for pid=1818 comm="syz-executor740" path="/root/syz-executor740738568" dev="sda1" ino=16461 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes [ 571.360111] INFO: task kworker/0:1:22 blocked for more than 140 seconds. [ 571.367182] Not tainted 4.14.91+ #1 [ 571.372072] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 571.380285] kworker/0:1 D28656 22 2 0x80000000 [ 571.386107] Workqueue: events linkwatch_event [ 571.391007] Call Trace: [ 571.393835] ? __schedule+0x91c/0x1f30 [ 571.397756] ? __sched_text_start+0x8/0x8 [ 571.402143] ? lock_downgrade+0x5d0/0x5d0 [ 571.406272] ? lock_acquire+0x10f/0x380 [ 571.410615] ? __mutex_lock+0x2c1/0x1430 [ 571.414675] schedule+0x92/0x1c0 [ 571.418155] schedule_preempt_disabled+0x13/0x20 [ 571.422953] __mutex_lock+0x559/0x1430 [ 571.426844] ? trace_hardirqs_on+0x10/0x10 [ 571.431103] ? lock_acquire+0x10f/0x380 [ 571.435063] ? linkwatch_event+0xa/0x50 [ 571.439156] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 571.444821] ? debug_object_deactivate+0x1e4/0x360 [ 571.449744] ? lock_acquire+0x10f/0x380 [ 571.453746] ? linkwatch_event+0xa/0x50 [ 571.457704] linkwatch_event+0xa/0x50 [ 571.461684] process_one_work+0x7c6/0x14e0 [ 571.465913] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 571.470605] worker_thread+0x5d7/0x1080 [ 571.474571] ? process_one_work+0x14e0/0x14e0 [ 571.479339] kthread+0x310/0x420 [ 571.482736] ? kthread_create_on_node+0xf0/0xf0 [ 571.487388] ret_from_fork+0x3a/0x50 [ 571.491302] [ 571.491302] Showing all locks held in the system: [ 571.497616] 3 locks held by kworker/0:1/22: [ 571.502001] #0: ("events"){+.+.}, at: [] process_one_work+0x6e5/0x14e0 [ 571.510412] #1: ((linkwatch_work).work){+.+.}, at: [] process_one_work+0x71b/0x14e0 [ 571.519930] #2: (rtnl_mutex){+.+.}, at: [] linkwatch_event+0xa/0x50 [ 571.528312] 1 lock held by khungtaskd/23: [ 571.532451] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a [ 571.541627] 3 locks held by kworker/1:1/68: [ 571.545942] #0: ("%s"("ipv6_addrconf")){+.+.}, at: [] process_one_work+0x6e5/0x14e0 [ 571.555779] #1: ((addr_chk_work).work){+.+.}, at: [] process_one_work+0x71b/0x14e0 [ 571.565258] #2: (rtnl_mutex){+.+.}, at: [] addrconf_verify_work+0xa/0x20 [ 571.573894] 2 locks held by getty/1746: [ 571.577847] #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x22/0x80 [ 571.586838] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1f7/0x1700 [ 571.596415] [ 571.598017] ============================================= [ 571.598017] [ 571.605042] NMI backtrace for cpu 0 [ 571.608659] CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.91+ #1 [ 571.615036] Call Trace: [ 571.617676] dump_stack+0xb9/0x10e [ 571.621412] ? irq_force_complete_move.cold+0xc/0x7b [ 571.626581] nmi_cpu_backtrace.cold+0x47/0x86 [ 571.631065] ? irq_force_complete_move.cold+0x7b/0x7b [ 571.636236] ? nmi_trigger_cpumask_backtrace+0x119/0x147 [ 571.641722] ? watchdog+0x56c/0xa90 [ 571.645331] ? reset_hung_task_detector+0x10/0x10 [ 571.650303] ? kthread+0x310/0x420 [ 571.653884] ? kthread_create_on_node+0xf0/0xf0 [ 571.658549] ? ret_from_fork+0x3a/0x50 [ 571.662491] Sending NMI from CPU 0 to CPUs 1: [ 571.667042] NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff8804e402 [ 571.668004] Kernel panic - not syncing: hung_task: blocked tasks [ 571.680392] CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.91+ #1 [ 571.687014] Call Trace: [ 571.689581] dump_stack+0xb9/0x10e [ 571.693142] panic+0x1d9/0x3c2 [ 571.696310] ? add_taint.cold+0x16/0x16 [ 571.700260] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 571.705345] ? cpumask_next+0x1f/0x30 [ 571.709153] ? printk_safe_flush+0xac/0x110 [ 571.713469] watchdog+0x57d/0xa90 [ 571.716898] ? reset_hung_task_detector+0x10/0x10 [ 571.721720] kthread+0x310/0x420 [ 571.725069] ? kthread_create_on_node+0xf0/0xf0 [ 571.729718] ret_from_fork+0x3a/0x50 [ 571.733986] Kernel Offset: 0x5800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 571.744805] Rebooting in 86400 seconds..