INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "2" 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 Warning: Permanently added '10.128.0.46' (ECDSA) to the list of known hosts. 2019/04/19 21:44:23 parsed 1 programs 2019/04/19 21:44:25 executed programs: 0 [ 999.091014] audit: type=1400 audit(1555710266.854:5): avc: denied { associate } for pid=2249 comm="syz-executor.1" name="syz1" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 2019/04/19 21:44:30 executed programs: 86 [ 1289.415553] INFO: task syz-executor.0:2247 blocked for more than 140 seconds. [ 1289.422952] Not tainted 4.9.169+ #43 [ 1289.427406] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1289.435428] syz-executor.0 D25192 2247 1 0x00000004 [ 1289.441182] ffff8801c95897c0 0000000000000000 ffff8801db721000 ffff8801da6f2f80 [ 1289.449383] ffff8801db721018 ffff8801c9317988 ffffffff8280152e ffffffff828110ca [ 1289.457515] 0000000000000000 00ffffff842c0848 ffff8801db7218f0 1ffff10039262f20 [ 1289.465647] Call Trace: [ 1289.468248] [<00000000c1bbe9d5>] ? __schedule+0x6ce/0x1f10 [ 1289.474161] [<0000000076790cfa>] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 1289.481280] [<00000000357486d4>] ? io_schedule_timeout+0x390/0x390 [ 1289.487726] [<00000000dd8da0ab>] ? mark_held_locks+0xb1/0x100 [ 1289.493692] [<00000000c5bea067>] schedule+0x92/0x1c0 [ 1289.498968] [<00000000bfae124a>] schedule_preempt_disabled+0x13/0x20 [ 1289.505895] [<00000000dbc7492d>] mutex_lock_nested+0x38d/0x920 [ 1289.512010] [<000000008d107f62>] ? blkdev_reread_part+0x1f/0x40 [ 1289.518287] [<00000000f0b70ed8>] ? mutex_trylock+0x3f0/0x3f0 [ 1289.524178] [<000000002d79adfa>] ? __wake_up+0x1e/0x50 [ 1289.529680] [<00000000a9e5f93c>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 1289.536558] [<000000008d107f62>] blkdev_reread_part+0x1f/0x40 [ 1289.542521] [<00000000040a29b0>] loop_reread_partitions+0x7c/0x90 [ 1289.548918] [<000000008092aec3>] loop_clr_fd+0x7dd/0xa60 [ 1289.554456] [<00000000c873fed1>] lo_ioctl+0x7b6/0x1a10 [ 1289.560049] [<000000005c34837e>] ? do_syscall_64+0x1ad/0x570 [ 1289.565993] [<0000000076ba8cec>] ? entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 1289.573151] [<00000000ce14ea53>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1289.581755] [<00000000fbc73731>] ? loop_add+0x7b0/0x7b0 [ 1289.587410] [<00000000a0a36712>] blkdev_ioctl+0xe14/0x19e0 [ 1289.593274] [<000000003d437d2a>] ? blkpg_ioctl+0x920/0x920 [ 1289.599160] [<00000000a9e5f93c>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 1289.606021] [<00000000af0ea2b4>] block_ioctl+0xde/0x120 [ 1289.611453] [<000000001a2e085d>] ? blkdev_fallocate+0x430/0x430 [ 1289.617647] [<00000000daace02b>] do_vfs_ioctl+0xb87/0x11d0 [ 1289.623584] [<000000000b9f8e1e>] ? selinux_file_ioctl+0x103/0x550 [ 1289.630040] [<000000005222f708>] ? ioctl_preallocate+0x210/0x210 [ 1289.636633] [<000000001a3af51e>] ? selinux_parse_skb.constprop.0+0x16b0/0x16b0 [ 1289.644085] [<000000009f574add>] ? do_sys_open+0x27c/0x610 [ 1289.649907] [<00000000ed09aee1>] ? filp_open+0x70/0x70 [ 1289.655338] [<00000000fa3381c6>] ? SyS_mkdirat+0x164/0x250 [ 1289.661102] [<000000004de3a519>] ? security_file_ioctl+0x8f/0xc0 [ 1289.667459] [<0000000091706496>] SyS_ioctl+0x8f/0xc0 [ 1289.672700] [<00000000e60c858e>] ? do_vfs_ioctl+0x11d0/0x11d0 [ 1289.678768] [<000000005c34837e>] do_syscall_64+0x1ad/0x570 [ 1289.684491] [<0000000076ba8cec>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 1289.691497] [ 1289.691497] Showing all locks held in the system: [ 1289.697838] 2 locks held by khungtaskd/24: [ 1289.702048] #0: (rcu_read_lock){......}, at: [<00000000e806f38e>] watchdog+0x13c/0xae0 [ 1289.710846] #1: (tasklist_lock){.+.+..}, at: [<0000000066146396>] debug_show_all_locks+0x7f/0x21f [ 1289.720720] 2 locks held by getty/2040: [ 1289.724683] #0: (&tty->ldisc_sem){++++++}, at: [<00000000da415ca2>] ldsem_down_read+0x33/0x40 [ 1289.734079] #1: (&ldata->atomic_read_lock){+.+...}, at: [<000000001386221c>] n_tty_read+0x1fe/0x1820 [ 1289.744305] 2 locks held by syz-executor.0/2247: [ 1289.749122] #0: (loop_ctl_mutex/1){+.+.+.}, at: [<000000003b04c693>] lo_ioctl+0x85/0x1a10 [ 1289.758306] #1: (&bdev->bd_mutex){+.+.+.}, at: [<000000008d107f62>] blkdev_reread_part+0x1f/0x40 [ 1289.768063] 1 lock held by syz-executor.1/2249: [ 1289.772725] #0: (loop_ctl_mutex/1){+.+.+.}, at: [<000000003b04c693>] lo_ioctl+0x85/0x1a10 [ 1289.781908] 3 locks held by blkid/3319: [ 1289.785946] #0: (&bdev->bd_mutex){+.+.+.}, at: [<0000000030c975d3>] __blkdev_put+0xbb/0x840 [ 1289.795160] #1: (loop_index_mutex){+.+.+.}, at: [<0000000082a73b83>] lo_release+0x1e/0x1b0 [ 1289.804365] #2: (loop_ctl_mutex#2){+.+.+.}, at: [<00000000b80a519f>] lo_release+0x84/0x1b0 [ 1289.813638] 1 lock held by syz-executor.5/3320: [ 1289.818456] #0: (loop_ctl_mutex/1){+.+.+.}, at: [<000000003b04c693>] lo_ioctl+0x85/0x1a10 [ 1289.827704] 2 locks held by blkid/3321: [ 1289.831674] #0: (&bdev->bd_mutex){+.+.+.}, at: [<00000000fc3e6593>] __blkdev_get+0x10e/0xeb0 [ 1289.841074] #1: (loop_index_mutex){+.+.+.}, at: [<00000000e5078914>] lo_open+0x1d/0xb0 [ 1289.849939] 1 lock held by syz-executor.4/3322: [ 1289.854583] #0: (loop_ctl_mutex/1){+.+.+.}, at: [<000000003b04c693>] lo_ioctl+0x85/0x1a10 [ 1289.863848] 2 locks held by blkid/3323: [ 1289.867868] #0: (&bdev->bd_mutex){+.+.+.}, at: [<00000000fc3e6593>] __blkdev_get+0x10e/0xeb0 [ 1289.877175] #1: (loop_index_mutex){+.+.+.}, at: [<00000000e5078914>] lo_open+0x1d/0xb0 [ 1289.885967] 1 lock held by syz-executor.3/3324: [ 1289.890621] #0: (loop_ctl_mutex/1){+.+.+.}, at: [<000000003b04c693>] lo_ioctl+0x85/0x1a10 [ 1289.899767] 2 locks held by syz-executor.2/3325: [ 1289.904502] #0: (&bdev->bd_mutex){+.+.+.}, at: [<00000000fc3e6593>] __blkdev_get+0x10e/0xeb0 [ 1289.913864] #1: (loop_index_mutex){+.+.+.}, at: [<00000000e5078914>] lo_open+0x1d/0xb0 [ 1289.922754] 2 locks held by blkid/3326: [ 1289.926799] #0: (&bdev->bd_mutex){+.+.+.}, at: [<00000000fc3e6593>] __blkdev_get+0x10e/0xeb0 [ 1289.936101] #1: (loop_index_mutex){+.+.+.}, at: [<00000000e5078914>] lo_open+0x1d/0xb0 [ 1289.944961] 1 lock held by blkid/3327: [ 1289.948921] #0: (&bdev->bd_mutex){+.+.+.}, at: [<00000000fc3e6593>] __blkdev_get+0x10e/0xeb0 [ 1289.958219] [ 1289.959878] ============================================= [ 1289.959878] [ 1289.967371] NMI backtrace for cpu 0 [ 1289.971015] CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.169+ #43 [ 1289.977509] ffff8801d98d7cc8 ffffffff81b4f7f1 0000000000000000 0000000000000000 [ 1289.985566] 0000000000000000 ffffffff81097401 dffffc0000000000 ffff8801d98d7d00 [ 1289.993624] ffffffff81b5aa8c 0000000000000000 0000000000000000 0000000000000000 [ 1290.001676] Call Trace: [ 1290.004246] [<00000000e26243c1>] dump_stack+0xc1/0x120 [ 1290.009689] [<00000000a33f3d33>] ? irq_force_complete_move+0x281/0x300 [ 1290.016539] [<000000005f8adca3>] nmi_cpu_backtrace.cold+0x47/0x87 [ 1290.022863] [<000000009c6959bf>] ? irq_force_complete_move+0x300/0x300 [ 1290.029622] [<00000000c77b010e>] nmi_trigger_cpumask_backtrace+0x124/0x155 [ 1290.036739] [<000000001bcc9b0e>] arch_trigger_cpumask_backtrace+0x14/0x20 [ 1290.043739] [<000000004bc002e2>] watchdog+0x661/0xae0 [ 1290.049115] [<00000000e806f38e>] ? watchdog+0x13c/0xae0 [ 1290.054565] [<00000000a9e5f93c>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 1290.061432] [<000000007b9a744e>] ? reset_hung_task_detector+0x20/0x20 [ 1290.068093] [<0000000071fea858>] kthread+0x278/0x310 [ 1290.073264] [<000000002fbac814>] ? kthread_park+0xa0/0xa0 [ 1290.078938] [<00000000ce14ea53>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1290.085720] [<00000000d68029ff>] ? _raw_spin_unlock_irq+0x39/0x60 [ 1290.092031] [<00000000ba115ddf>] ? finish_task_switch+0x1e5/0x660 [ 1290.098489] [<00000000d1004ba6>] ? finish_task_switch+0x1b7/0x660 [ 1290.104815] [<000000007f7e8b05>] ? __switch_to_asm+0x34/0x70 [ 1290.110699] [<000000001f5f5a19>] ? __switch_to_asm+0x40/0x70 [ 1290.116578] [<000000007f7e8b05>] ? __switch_to_asm+0x34/0x70 [ 1290.122446] [<000000002fbac814>] ? kthread_park+0xa0/0xa0 [ 1290.128070] [<000000002fbac814>] ? kthread_park+0xa0/0xa0 [ 1290.133681] [<00000000d1fd0387>] ret_from_fork+0x5c/0x70 [ 1290.139328] Sending NMI from CPU 0 to CPUs 1: [ 1290.143925] NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff828105a2 [ 1290.151197] Kernel panic - not syncing: hung_task: blocked tasks [ 1290.157450] CPU: 0 PID: 24 Comm: khungtaskd Not tainted 4.9.169+ #43 [ 1290.163999] ffff8801d98d7c60 ffffffff81b4f7f1 ffff8801c9589700 ffffffff82a79d00 [ 1290.172052] 00000000ffffffff 0000000000000000 dffffc0000000000 ffff8801d98d7d40 [ 1290.180181] ffffffff813f95aa 0000000041b58ab3 ffffffff82e2ede2 ffffffff813f93d1 [ 1290.188196] Call Trace: [ 1290.190777] [<00000000e26243c1>] dump_stack+0xc1/0x120 [ 1290.196192] [<00000000d49e4704>] panic+0x1d9/0x3bd [ 1290.201212] [<000000002d088e1b>] ? add_taint.cold+0x16/0x16 [ 1290.207007] [<000000009c6959bf>] ? irq_force_complete_move+0x300/0x300 [ 1290.213806] [<00000000606e2739>] ? ___preempt_schedule+0x16/0x18 [ 1290.220036] [<00000000f9261c65>] ? nmi_trigger_cpumask_backtrace+0x135/0x155 [ 1290.227346] [<000000009a2ae831>] ? nmi_trigger_cpumask_backtrace+0x13f/0x155 [ 1290.234617] [<00000000f3af5585>] watchdog+0x672/0xae0 [ 1290.239885] [<00000000e806f38e>] ? watchdog+0x13c/0xae0 [ 1290.245418] [<00000000a9e5f93c>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 1290.252258] [<000000007b9a744e>] ? reset_hung_task_detector+0x20/0x20 [ 1290.258919] [<0000000071fea858>] kthread+0x278/0x310 [ 1290.264104] [<000000002fbac814>] ? kthread_park+0xa0/0xa0 [ 1290.269724] [<00000000ce14ea53>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1290.279740] [<00000000d68029ff>] ? _raw_spin_unlock_irq+0x39/0x60 [ 1290.286051] [<00000000ba115ddf>] ? finish_task_switch+0x1e5/0x660 [ 1290.292357] [<00000000d1004ba6>] ? finish_task_switch+0x1b7/0x660 [ 1290.298670] [<000000007f7e8b05>] ? __switch_to_asm+0x34/0x70 [ 1290.304726] [<000000001f5f5a19>] ? __switch_to_asm+0x40/0x70 [ 1290.310601] [<000000007f7e8b05>] ? __switch_to_asm+0x34/0x70 [ 1290.316566] [<000000002fbac814>] ? kthread_park+0xa0/0xa0 [ 1290.322216] [<000000002fbac814>] ? kthread_park+0xa0/0xa0 [ 1290.327836] [<00000000d1fd0387>] ret_from_fork+0x5c/0x70 [ 1290.333773] Kernel Offset: disabled [ 1290.337438] Rebooting in 86400 seconds..