INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes [ 187.347183] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.28' (ECDSA) to the list of known hosts. [ 193.015549] random: sshd: uninitialized urandom read (32 bytes read) 2018/05/01 03:43:00 parsed 1 programs 2018/05/01 03:43:00 executed programs: 0 [ 193.451054] IPVS: Creating netns size=2536 id=1 [ 367.999135] INFO: task syz-executor0:3740 blocked for more than 120 seconds. [ 368.006367] Not tainted 4.9.97-g2bcbbd5 #14 [ 368.011300] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 368.019343] syz-executor0 D29064 3740 3731 0x20020004 [ 368.025148] ffff8801c17c3000 0000000000000000 ffff8801c1e50a80 ffffffff84629800 [ 368.033180] ffff8801db221b98 ffff8801d97dfb90 ffffffff839e375d 0000000000000002 [ 368.041214] 0000000041b58ab3 ffffffff843b8763 00ffffff8121f1e0 ffff8801db222468 [ 368.049251] Call Trace: [ 368.051926] [] ? __schedule+0x64d/0x1bd0 [ 368.057619] [] schedule+0x7f/0x1b0 [ 368.062980] [] blk_mq_freeze_queue_wait+0x114/0x230 [ 368.070026] [] ? plug_ctx_cmp+0x100/0x100 [ 368.075857] [] ? prepare_to_wait_event+0x450/0x450 [ 368.082483] [] blk_mq_freeze_queue+0x1d/0x20 [ 368.088575] [] lo_ioctl+0x722/0x1aa0 [ 368.093976] [] lo_compat_ioctl+0xb2/0x140 [ 368.099773] [] ? lo_ioctl+0x1aa0/0x1aa0 [ 368.105536] [] compat_blkdev_ioctl+0x3a5/0x3ad0 [ 368.111913] [] ? __fget+0x20a/0x3b0 [ 368.117170] [] ? cfq_dispatch_requests+0x2ef0/0x2ef0 [ 368.123943] [] ? __fget+0x231/0x3b0 [ 368.129287] [] ? __fget+0x47/0x3b0 [ 368.134507] [] ? security_file_ioctl+0x8f/0xc0 [ 368.140813] [] compat_SyS_ioctl+0x126/0x1fe0 [ 368.146861] [] ? cfq_dispatch_requests+0x2ef0/0x2ef0 [ 368.153650] [] ? do_ioctl+0x60/0x60 [ 368.158945] [] do_fast_syscall_32+0x2f7/0x870 [ 368.165192] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 368.171887] [] entry_SYSENTER_compat+0x90/0xa2 [ 368.178093] [ 368.178093] Showing all locks held in the system: [ 368.185037] 2 locks held by khungtaskd/518: [ 368.189363] #0: (rcu_read_lock){......}, at: [] watchdog+0x11c/0xa20 [ 368.198115] #1: (tasklist_lock){.+.+..}, at: [] debug_show_all_locks+0x79/0x218 [ 368.207874] 1 lock held by rsyslogd/3550: [ 368.212042] #0: (&f->f_pos_lock){+.+.+.}, at: [] __fdget_pos+0xac/0xd0 [ 368.220924] 2 locks held by getty/3646: [ 368.224879] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x32/0x40 [ 368.234244] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x202/0x16e0 [ 368.244332] 1 lock held by syz-executor0/3740: [ 368.248888] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1aa0 [ 368.258251] 1 lock held by blkid/3741: [ 368.262152] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1aa0 [ 368.271518] [ 368.273117] ============================================= [ 368.273117] [ 368.280459] NMI backtrace for cpu 1 [ 368.284102] CPU: 1 PID: 518 Comm: khungtaskd Not tainted 4.9.97-g2bcbbd5 #14 [ 368.291265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 368.300597] ffff8801d979fd08 ffffffff81eb0b69 0000000000000000 0000000000000001 [ 368.308571] 0000000000000001 0000000000000001 ffffffff810b7d60 ffff8801d979fd40 [ 368.316544] ffffffff81ebbe97 0000000000000001 0000000000000000 0000000000000003 [ 368.324513] Call Trace: [ 368.327076] [] dump_stack+0xc1/0x128 [ 368.332481] [] ? irq_force_complete_move+0x320/0x320 [ 368.339217] [] nmi_cpu_backtrace.cold.2+0x48/0x87 [ 368.345690] [] ? irq_force_complete_move+0x320/0x320 [ 368.352412] [] nmi_trigger_cpumask_backtrace+0x12a/0x14f [ 368.359481] [] arch_trigger_cpumask_backtrace+0x14/0x20 [ 368.366473] [] watchdog+0x6b4/0xa20 [ 368.371717] [] ? watchdog+0x11c/0xa20 [ 368.377174] [] kthread+0x26d/0x300 [ 368.382336] [] ? reset_hung_task_detector+0x20/0x20 [ 368.388970] [] ? kthread_park+0xa0/0xa0 [ 368.394564] [] ? kthread_park+0xa0/0xa0 [ 368.400159] [] ? kthread_park+0xa0/0xa0 [ 368.405754] [] ret_from_fork+0x5c/0x70 [ 368.411342] Sending NMI from CPU 1 to CPUs 0: [ 368.415846] NMI backtrace for cpu 0 skipped: idling at pc 0xffffffff839f3266 [ 368.423120] Kernel panic - not syncing: hung_task: blocked tasks [ 368.429257] CPU: 1 PID: 518 Comm: khungtaskd Not tainted 4.9.97-g2bcbbd5 #14 [ 368.436431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 368.445760] ffff8801d979fcc8 ffffffff81eb0b69 ffffffff83c8b4e0 00000000ffffffff [ 368.453764] 0000000000000000 0000000000000001 dffffc0000000000 ffff8801d979fd88 [ 368.461760] ffffffff8141f975 0000000041b58ab3 ffffffff843b8408 ffffffff8141f7b6 [ 368.469728] Call Trace: [ 368.472291] [] dump_stack+0xc1/0x128 [ 368.477627] [] panic+0x1bf/0x3bc [ 368.482616] [] ? add_taint.cold.6+0x16/0x16 [ 368.488569] [] ? ___preempt_schedule+0x16/0x18 [ 368.494773] [] ? nmi_trigger_cpumask_backtrace+0x100/0x14f [ 368.502018] [] watchdog+0x6c5/0xa20 [ 368.507264] [] ? watchdog+0x11c/0xa20 [ 368.512684] [] kthread+0x26d/0x300 [ 368.517849] [] ? reset_hung_task_detector+0x20/0x20 [ 368.524488] [] ? kthread_park+0xa0/0xa0 [ 368.530091] [] ? kthread_park+0xa0/0xa0 [ 368.535688] [] ? kthread_park+0xa0/0xa0 [ 368.541318] [] ret_from_fork+0x5c/0x70 [ 368.547423] Dumping ftrace buffer: [ 368.551012] (ftrace buffer empty) [ 368.554698] Kernel Offset: disabled [ 368.558317] Rebooting in 86400 seconds..