INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.34' (ECDSA) to the list of known hosts. 2018/07/10 18:02:07 parsed 1 programs 2018/07/10 18:02:09 executed programs: 0 [ 558.973544] IPVS: Creating netns size=2536 id=1 [ 559.077305] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 559.088486] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 559.120766] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 559.131686] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 559.162982] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 559.173735] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 559.184991] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 559.205501] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 559.476243] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 559.500660] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 559.506781] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 559.513793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 715.987960] INFO: task syz-executor0:4193 blocked for more than 140 seconds. [ 715.995180] Not tainted 4.9.111-g03c70fe #10 [ 716.000152] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.008103] syz-executor0 D29368 4193 3922 0x20020004 [ 716.013887] ffff8801d3978000 0000000000000000 ffff8801d3135500 ffff8801d9a6b000 [ 716.021894] ffff8801db321c18 ffff8801b53dfb90 ffffffff839e7ded 0000000000000002 [ 716.029888] 0000000041b58ab3 ffffffff843bac1b 00ffffff81221510 ffff8801db3224e8 [ 716.037877] Call Trace: [ 716.040475] [] ? __schedule+0x64d/0x1bd0 [ 716.046158] [] schedule+0x7f/0x1b0 [ 716.051393] [] blk_mq_freeze_queue_wait+0x114/0x230 [ 716.058073] [] ? plug_ctx_cmp+0x100/0x100 [ 716.063863] [] ? prepare_to_wait_event+0x450/0x450 [ 716.070431] [] blk_mq_freeze_queue+0x1d/0x20 [ 716.076484] [] lo_ioctl+0x722/0x1aa0 [ 716.081889] [] lo_compat_ioctl+0xb2/0x140 [ 716.087659] [] ? lo_ioctl+0x1aa0/0x1aa0 [ 716.093320] [] compat_blkdev_ioctl+0x3a5/0x3ad0 [ 716.099628] [] ? cfq_dispatch_requests+0x2ef0/0x2ef0 [ 716.106386] [] ? compat_SyS_futex+0x1e1/0x2f0 [ 716.112573] [] ? security_file_ioctl+0x8f/0xc0 [ 716.118861] [] compat_SyS_ioctl+0x126/0x1fe0 [ 716.124897] [] ? cfq_dispatch_requests+0x2ef0/0x2ef0 [ 716.131651] [] ? do_ioctl+0x60/0x60 [ 716.136906] [] do_fast_syscall_32+0x2f7/0x870 [ 716.143058] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 716.149711] [] entry_SYSENTER_compat+0x90/0xa2 [ 716.155921] [ 716.155921] Showing all locks held in the system: [ 716.162243] 2 locks held by khungtaskd/519: [ 716.166534] #0: (rcu_read_lock){......}, at: [] watchdog+0x11c/0xa20 [ 716.175325] #1: (tasklist_lock){.+.+..}, at: [] debug_show_all_locks+0x79/0x218 [ 716.185014] 1 lock held by rsyslogd/3673: [ 716.189149] #0: (&f->f_pos_lock){+.+.+.}, at: [] __fdget_pos+0xac/0xd0 [ 716.198020] 2 locks held by getty/3771: [ 716.201962] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x32/0x40 [ 716.211263] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x202/0x16e0 [ 716.221215] 1 lock held by syz-executor0/4193: [ 716.225766] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1aa0 [ 716.235095] [ 716.236690] ============================================= [ 716.236690] [ 716.243759] NMI backtrace for cpu 0 [ 716.247361] CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.111-g03c70fe #10 [ 716.254602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.263938] ffff8801d8637d08 ffffffff81eb2729 0000000000000000 0000000000000000 [ 716.271921] 0000000000000000 0000000000000001 ffffffff810b9af0 ffff8801d8637d40 [ 716.279896] ffffffff81ebda27 0000000000000000 0000000000000000 0000000000000003 [ 716.287888] Call Trace: [ 716.290471] [] dump_stack+0xc1/0x128 [ 716.295835] [] ? irq_force_complete_move+0x320/0x320 [ 716.302560] [] nmi_cpu_backtrace.cold.2+0x48/0x87 [ 716.309031] [] ? irq_force_complete_move+0x320/0x320 [ 716.315752] [] nmi_trigger_cpumask_backtrace+0x12a/0x14f [ 716.322834] [] arch_trigger_cpumask_backtrace+0x14/0x20 [ 716.330090] [] watchdog+0x6b4/0xa20 [ 716.335336] [] ? watchdog+0x11c/0xa20 [ 716.340799] [] kthread+0x26d/0x300 [ 716.345968] [] ? reset_hung_task_detector+0x20/0x20 [ 716.352604] [] ? kthread_park+0xa0/0xa0 [ 716.358198] [] ? kthread_park+0xa0/0xa0 [ 716.363792] [] ? kthread_park+0xa0/0xa0 [ 716.369389] [] ret_from_fork+0x5c/0x70 [ 716.374998] Sending NMI from CPU 0 to CPUs 1: [ 716.379510] NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff839f78f6 [ 716.386763] Kernel panic - not syncing: hung_task: blocked tasks [ 716.392889] CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.111-g03c70fe #10 [ 716.400132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.409460] ffff8801d8637cc8 ffffffff81eb2729 ffffffff83c8bc20 00000000ffffffff [ 716.417432] 0000000000000000 0000000000000000 dffffc0000000000 ffff8801d8637d88 [ 716.425414] ffffffff814219f5 0000000041b58ab3 ffffffff843ba8c0 ffffffff81421836 [ 716.433401] Call Trace: [ 716.435965] [] dump_stack+0xc1/0x128 [ 716.441307] [] panic+0x1bf/0x3bc [ 716.446295] [] ? add_taint.cold.6+0x16/0x16 [ 716.452246] [] ? ___preempt_schedule+0x16/0x18 [ 716.458454] [] ? nmi_trigger_cpumask_backtrace+0x100/0x14f [ 716.465700] [] watchdog+0x6c5/0xa20 [ 716.470959] [] ? watchdog+0x11c/0xa20 [ 716.476394] [] kthread+0x26d/0x300 [ 716.481559] [] ? reset_hung_task_detector+0x20/0x20 [ 716.488199] [] ? kthread_park+0xa0/0xa0 [ 716.493796] [] ? kthread_park+0xa0/0xa0 [ 716.499393] [] ? kthread_park+0xa0/0xa0 [ 716.504992] [] ret_from_fork+0x5c/0x70 [ 716.510999] Dumping ftrace buffer: [ 716.514537] (ftrace buffer empty) [ 716.518217] Kernel Offset: disabled [ 716.521822] Rebooting in 86400 seconds..