INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.156' (ECDSA) to the list of known hosts. 2019/04/26 22:25:12 parsed 1 programs 2019/04/26 22:25:14 executed programs: 0 [ 602.591005] audit: type=1400 audit(1556317516.756:5): avc: denied { associate } for pid=2192 comm="syz-executor.2" name="syz2" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 602.730397] sched: DL replenish lagged too much 2019/04/26 22:25:19 executed programs: 472 [ 859.857529] INFO: task syz-executor.2:2186 blocked for more than 140 seconds. [ 859.864852] Not tainted 4.9.170+ #48 [ 859.869185] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 859.877268] syz-executor.2 D28936 2186 2173 0x00000004 [ 859.883004] ffff8801cb6bc740 ffff8801cdc34200 ffff8801db721000 ffff8801cc0c97c0 [ 859.891061] ffff8801db721018 ffff8801cae4f680 ffffffff82801a4e 0000000000000246 [ 859.899144] ffff8801cb6bc740 0000000000000000 ffff8801db7218f0 1ffff100395c9ebf [ 859.907226] Call Trace: [ 859.909816] [<00000000bcf734ee>] ? __schedule+0x6ce/0x1f10 [ 859.915503] [<0000000079b93c73>] ? io_schedule_timeout+0x390/0x390 [ 859.921921] [<000000000a238c34>] schedule+0x92/0x1c0 [ 859.927105] [<00000000282d5a37>] __rt_mutex_slowlock+0x99/0x290 [ 859.933268] [<0000000087d7ff34>] ? rt_mutex_trylock+0x110/0x110 [ 859.939623] [<0000000043676e1c>] ? task_blocks_on_rt_mutex+0x245/0x520 [ 859.946373] [<00000000401273ae>] ? try_to_take_rt_mutex+0x130/0x490 [ 859.952894] [<0000000026e7936e>] rt_mutex_slowlock+0x199/0x4c0 [ 859.958967] [<00000000e203837e>] ? trace_hardirqs_on+0x10/0x10 [ 859.965020] [<0000000094746da2>] ? __rt_mutex_slowlock+0x290/0x290 [ 859.971449] [<00000000a55ff79a>] ? kasan_unpoison_shadow+0x35/0x50 [ 859.977871] [<0000000021093a49>] ? __might_sleep+0x95/0x1a0 [ 859.983650] [<000000008b3a3842>] rt_mutex_lock+0x2d/0x40 [ 859.989207] [<0000000038adafe7>] process_notifier+0x96/0x670 [ 859.995091] [<000000007628d46e>] ? uid_remove_write+0x460/0x460 [ 860.001264] [<0000000069eedc9c>] notifier_call_chain+0xb4/0x1d0 [ 860.007421] [<00000000a1b465c5>] blocking_notifier_call_chain+0x80/0xa0 [ 860.014248] [<00000000129465ac>] profile_task_exit+0x1f/0x30 [ 860.020136] [<0000000062b71e63>] do_exit+0x90/0x2aa0 [ 860.025324] [<00000000a1bda1ba>] ? avc_has_perm_noaudit+0x300/0x300 [ 860.031909] [<000000004ab47253>] ? release_task+0x14a0/0x14a0 [ 860.037902] [<00000000befc689e>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 860.044635] [<000000006777252e>] ? get_signal+0x1d9/0x1aa0 [ 860.050355] [<000000000d64773a>] do_group_exit+0x111/0x300 [ 860.056064] [<00000000cb444f6d>] get_signal+0x348/0x1aa0 [ 860.061619] [<00000000befc689e>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 860.068392] [<000000006f99b3b4>] do_signal+0x9c/0x1920 [ 860.073741] [<00000000cc203ee2>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 860.080613] [<00000000c42ab476>] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 860.087573] [<000000009b509990>] ? remove_wait_queue+0x10f/0x190 [ 860.093783] [<0000000008e001a7>] ? setup_sigcontext+0x7d0/0x7d0 [ 860.099948] [<00000000d01bc2f3>] ? do_wait+0x2e7/0x930 [ 860.105309] [<000000007a9f4b65>] ? wait_consider_task+0x35e0/0x35e0 [ 860.111821] [<00000000a45f8624>] ? put_pid+0xfd/0x130 [ 860.117301] [<000000007f57282f>] ? SyS_wait4+0x154/0x210 [ 860.122820] [<0000000020df7011>] ? SyS_waitid+0x2d0/0x2d0 [ 860.128455] [<00000000dbdfc9c0>] ? exit_to_usermode_loop+0xcc/0x160 [ 860.134949] [<00000000ad903aa2>] exit_to_usermode_loop+0x11c/0x160 [ 860.141369] [<000000007aae427b>] do_syscall_64+0x3f7/0x570 [ 860.147078] [<000000007ed9edd5>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 860.154082] [ 860.154082] Showing all locks held in the system: [ 860.160482] 2 locks held by khungtaskd/24: [ 860.164700] #0: (rcu_read_lock){......}, at: [<00000000b6b7d050>] watchdog+0x14b/0xaf0 [ 860.173588] #1: (tasklist_lock){.+.+..}, at: [<00000000e7f0acdb>] debug_show_all_locks+0x7f/0x21f [ 860.183303] 1 lock held by rsyslogd/1914: [ 860.187462] #0: (&f->f_pos_lock){+.+.+.}, at: [<0000000016fa0e74>] __fdget_pos+0xa8/0xd0 [ 860.196508] 2 locks held by getty/2041: [ 860.200488] #0: (&tty->ldisc_sem){++++++}, at: [<00000000daa0059f>] ldsem_down_read+0x33/0x40 [ 860.209815] #1: (&ldata->atomic_read_lock){+.+...}, at: [<00000000a5df0303>] n_tty_read+0x1fe/0x1820 [ 860.219760] 1 lock held by syz-executor.2/2186: [ 860.224421] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.236042] 1 lock held by syz-executor.3/2188: [ 860.240721] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.252159] 1 lock held by syz-executor.4/2190: [ 860.256811] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.268278] 1 lock held by syz-executor.0/2193: [ 860.272919] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.284385] 1 lock held by syz-executor.1/2194: [ 860.289067] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.300525] 1 lock held by syz-executor.5/2199: [ 860.305188] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.316692] 1 lock held by syz-executor.1/4829: [ 860.321428] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.333008] 1 lock held by syz-executor.1/4836: [ 860.337685] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.349248] 1 lock held by blkid/4832: [ 860.353113] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.364706] 1 lock held by syz-executor.2/4833: [ 860.369493] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.380963] 1 lock held by syz-executor.2/4847: [ 860.385615] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.397217] 1 lock held by syz-executor.3/4841: [ 860.401867] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.413325] 1 lock held by blkid/4837: [ 860.417224] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.428647] 1 lock held by blkid/4838: [ 860.432517] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.443969] 1 lock held by syz-executor.0/4839: [ 860.448742] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.460322] 1 lock held by syz-executor.0/4844: [ 860.464968] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.476448] 1 lock held by syz-executor.4/4840: [ 860.481133] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.492562] 1 lock held by syz-executor.4/4846: [ 860.497240] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.508669] 1 lock held by blkid/4842: [ 860.512537] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.523992] 1 lock held by syz-executor.5/4843: [ 860.528681] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.540184] 1 lock held by syz-executor.5/4848: [ 860.544828] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.556296] 1 lock held by blkid/4845: [ 860.560300] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.571910] 1 lock held by getty/4849: [ 860.575874] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.587359] 1 lock held by getty/4850: [ 860.591224] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.602653] 1 lock held by getty/4851: [ 860.606542] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.618031] 1 lock held by getty/4852: [ 860.621952] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.633504] 1 lock held by getty/4853: [ 860.640809] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.652361] 1 lock held by getty/4854: [ 860.656223] #0: ((task_exit_notifier).rwsem){.+.+..}, at: [<00000000cb8a55d4>] blocking_notifier_call_chain+0x6a/0xa0 [ 860.667691] [ 860.669296] ============================================= [ 860.669296] [ 860.676294] NMI backtrace for cpu 1 [ 860.680013] CPU: 1 PID: 24 Comm: khungtaskd Not tainted 4.9.170+ #48 [ 860.686502] ffff8801d98d7cc8 ffffffff81b4fb21 0000000000000001 0000000000000000 [ 860.694501] 0000000000000001 ffffffff81097401 dffffc0000000000 ffff8801d98d7d00 [ 860.702505] ffffffff81b5adbc 0000000000000001 0000000000000000 0000000000000001 [ 860.710583] Call Trace: [ 860.713149] [<00000000970c22e0>] dump_stack+0xc1/0x120 [ 860.718599] [<00000000b64fc28d>] ? irq_force_complete_move+0x281/0x300 [ 860.725336] [<00000000d1294b10>] nmi_cpu_backtrace.cold+0x47/0x87 [ 860.731639] [<00000000b0eba4fa>] ? irq_force_complete_move+0x300/0x300 [ 860.738375] [<000000008cf8a361>] nmi_trigger_cpumask_backtrace+0x124/0x155 [ 860.745518] [<000000003d69277b>] arch_trigger_cpumask_backtrace+0x14/0x20 [ 860.752681] [<00000000568ac065>] watchdog+0x670/0xaf0 [ 860.757941] [<00000000b6b7d050>] ? watchdog+0x14b/0xaf0 [ 860.763469] [<00000000cc203ee2>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 860.770293] [<000000005997606f>] ? hungtask_pm_notify+0x60/0x60 [ 860.776515] [<00000000bd3e7d3f>] kthread+0x278/0x310 [ 860.781688] [<00000000182fb606>] ? kthread_park+0xa0/0xa0 [ 860.787288] [<00000000befc689e>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 860.794022] [<0000000035cad02c>] ? _raw_spin_unlock_irq+0x39/0x60 [ 860.800362] [<0000000084e61f93>] ? finish_task_switch+0x1e5/0x660 [ 860.806662] [<00000000006d75ae>] ? finish_task_switch+0x1b7/0x660 [ 860.812956] [<0000000030a8d169>] ? __switch_to_asm+0x34/0x70 [ 860.818849] [<0000000037c14b5c>] ? __switch_to_asm+0x40/0x70 [ 860.824808] [<0000000030a8d169>] ? __switch_to_asm+0x34/0x70 [ 860.830687] [<00000000182fb606>] ? kthread_park+0xa0/0xa0 [ 860.836316] [<00000000182fb606>] ? kthread_park+0xa0/0xa0 [ 860.841951] [<0000000081938488>] ret_from_fork+0x5c/0x70 [ 860.848264] Sending NMI from CPU 1 to CPUs 0: [ 860.852937] NMI backtrace for cpu 0 skipped: idling at pc 0xffffffff82810ac2 [ 860.860453] Kernel panic - not syncing: hung_task: blocked tasks [ 860.866676] CPU: 1 PID: 24 Comm: khungtaskd Not tainted 4.9.170+ #48 [ 860.873221] ffff8801d98d7c60 ffffffff81b4fb21 ffff8801cb6bc700 ffffffff82a79d40 [ 860.881353] 00000000ffffffff 0000000000000001 dffffc0000000000 ffff8801d98d7d40 [ 860.889491] ffffffff813f966a 0000000041b58ab3 ffffffff82e2ef22 ffffffff813f9491 [ 860.897525] Call Trace: [ 860.900190] [<00000000970c22e0>] dump_stack+0xc1/0x120 [ 860.905554] [<000000002fb55369>] panic+0x1d9/0x3bd [ 860.910567] [<0000000074482359>] ? add_taint.cold+0x16/0x16 [ 860.916365] [<00000000b0eba4fa>] ? irq_force_complete_move+0x300/0x300 [ 860.923112] [<00000000f65041d5>] ? ___preempt_schedule+0x16/0x18 [ 860.929338] [<00000000945996bf>] ? nmi_trigger_cpumask_backtrace+0x135/0x155 [ 860.936604] [<00000000e5af37bb>] ? nmi_trigger_cpumask_backtrace+0x13f/0x155 [ 860.943881] [<00000000226e3d94>] watchdog+0x681/0xaf0 [ 860.949242] [<00000000b6b7d050>] ? watchdog+0x14b/0xaf0 [ 860.954686] [<00000000cc203ee2>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 860.962088] [<000000005997606f>] ? hungtask_pm_notify+0x60/0x60 [ 860.968223] [<00000000bd3e7d3f>] kthread+0x278/0x310 [ 860.973394] [<00000000182fb606>] ? kthread_park+0xa0/0xa0 [ 860.978991] [<00000000befc689e>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 860.985721] [<0000000035cad02c>] ? _raw_spin_unlock_irq+0x39/0x60 [ 860.992017] [<0000000084e61f93>] ? finish_task_switch+0x1e5/0x660 [ 860.998318] [<00000000006d75ae>] ? finish_task_switch+0x1b7/0x660 [ 861.004615] [<0000000030a8d169>] ? __switch_to_asm+0x34/0x70 [ 861.010472] [<0000000037c14b5c>] ? __switch_to_asm+0x40/0x70 [ 861.016331] [<0000000030a8d169>] ? __switch_to_asm+0x34/0x70 [ 861.022191] [<00000000182fb606>] ? kthread_park+0xa0/0xa0 [ 861.027897] [<00000000182fb606>] ? kthread_park+0xa0/0xa0 [ 861.033506] [<0000000081938488>] ret_from_fork+0x5c/0x70 [ 861.039377] Kernel Offset: disabled [ 861.043000] Rebooting in 86400 seconds..