INIT: Id "2" 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 "6" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.10.22' (ECDSA) to the list of known hosts. 2018/05/24 12:38:03 parsed 1 programs 2018/05/24 12:38:03 executed programs: 0 [ 565.268228] IPVS: Creating netns size=2536 id=1 [ 565.351543] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 565.362875] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 565.404416] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 565.415360] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 565.456858] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 565.468709] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 565.480347] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 565.501006] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 565.966240] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 565.990058] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 565.996453] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 566.003201] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 736.496203] INFO: task syz-executor0:4266 blocked for more than 120 seconds. [ 736.503423] Not tainted 4.9.102-gc5aceac #35 [ 736.508371] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 736.516340] syz-executor0 D28912 4266 3906 0x20020004 [ 736.522144] ffff8801d9174800 0000000000000000 ffff8801cc6ff480 ffffffff84629800 [ 736.530165] ffff8801db221c18 ffff8801cff17b90 ffffffff839e69ed 0000000000000002 [ 736.538187] 0000000041b58ab3 ffffffff843b980b 00ffffff81221330 ffff8801db2224e8 [ 736.546204] Call Trace: [ 736.548822] [] ? __schedule+0x64d/0x1bd0 [ 736.554512] [] schedule+0x7f/0x1b0 [ 736.559807] [] blk_mq_freeze_queue_wait+0x114/0x230 [ 736.566477] [] ? plug_ctx_cmp+0x100/0x100 [ 736.572288] [] ? prepare_to_wait_event+0x450/0x450 [ 736.578941] [] blk_mq_freeze_queue+0x1d/0x20 [ 736.585023] [] lo_ioctl+0x722/0x1aa0 [ 736.590398] [] lo_compat_ioctl+0xb2/0x140 [ 736.596525] [] ? lo_ioctl+0x1aa0/0x1aa0 [ 736.602155] [] compat_blkdev_ioctl+0x3a5/0x3ad0 [ 736.608489] [] ? debug_check_no_obj_freed+0x2ec/0x930 [ 736.615307] [] ? cfq_dispatch_requests+0x2ef0/0x2ef0 [ 736.622117] [] ? compat_SyS_futex+0x1e1/0x2f0 [ 736.628294] [] ? security_file_ioctl+0x8f/0xc0 [ 736.634551] [] compat_SyS_ioctl+0x126/0x1fe0 [ 736.640620] [] ? cfq_dispatch_requests+0x2ef0/0x2ef0 [ 736.647371] [] ? do_ioctl+0x60/0x60 [ 736.652656] [] do_fast_syscall_32+0x2f7/0x870 [ 736.658801] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 736.665470] [] entry_SYSENTER_compat+0x90/0xa2 [ 736.671747] [ 736.671747] Showing all locks held in the system: [ 736.678073] 2 locks held by khungtaskd/519: [ 736.682366] #0: (rcu_read_lock){......}, at: [] watchdog+0x11c/0xa20 [ 736.691148] #1: (tasklist_lock){.+.+..}, at: [] debug_show_all_locks+0x79/0x218 [ 736.700861] 2 locks held by getty/3762: [ 736.704806] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x32/0x40 [ 736.714142] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x202/0x16e0 [ 736.724132] 1 lock held by syz-executor0/4266: [ 736.728718] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1aa0 [ 736.738062] 1 lock held by blkid/4267: [ 736.741920] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1aa0 [ 736.751274] [ 736.752875] ============================================= [ 736.752875] [ 736.760066] NMI backtrace for cpu 1 [ 736.763702] CPU: 1 PID: 519 Comm: khungtaskd Not tainted 4.9.102-gc5aceac #35 [ 736.770952] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 736.780283] ffff8801d8417d08 ffffffff81eb3489 0000000000000000 0000000000000001 [ 736.788262] 0000000000000001 0000000000000001 ffffffff810b9590 ffff8801d8417d40 [ 736.796248] ffffffff81ebe787 0000000000000001 0000000000000000 0000000000000003 [ 736.804257] Call Trace: [ 736.806819] [] dump_stack+0xc1/0x128 [ 736.812213] [] ? irq_force_complete_move+0x320/0x320 [ 736.818954] [] nmi_cpu_backtrace.cold.2+0x48/0x87 [ 736.825417] [] ? irq_force_complete_move+0x320/0x320 [ 736.832137] [] nmi_trigger_cpumask_backtrace+0x12a/0x14f [ 736.839207] [] arch_trigger_cpumask_backtrace+0x14/0x20 [ 736.846193] [] watchdog+0x6b4/0xa20 [ 736.851438] [] ? watchdog+0x11c/0xa20 [ 736.856905] [] kthread+0x26d/0x300 [ 736.862074] [] ? reset_hung_task_detector+0x20/0x20 [ 736.868710] [] ? kthread_park+0xa0/0xa0 [ 736.874305] [] ? kthread_park+0xa0/0xa0 [ 736.879908] [] ? kthread_park+0xa0/0xa0 [ 736.885501] [] ret_from_fork+0x5c/0x70 [ 736.891107] Sending NMI from CPU 1 to CPUs 0: [ 736.895625] NMI backtrace for cpu 0 skipped: idling at pc 0xffffffff839f64f6 [ 736.902862] Kernel panic - not syncing: hung_task: blocked tasks [ 736.909001] CPU: 1 PID: 519 Comm: khungtaskd Not tainted 4.9.102-gc5aceac #35 [ 736.916244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 736.925576] ffff8801d8417cc8 ffffffff81eb3489 ffffffff83c8bb80 00000000ffffffff [ 736.933582] 0000000000000000 0000000000000001 dffffc0000000000 ffff8801d8417d88 [ 736.941555] ffffffff81421aa5 0000000041b58ab3 ffffffff843b94b0 ffffffff814218e6 [ 736.949539] Call Trace: [ 736.952099] [] dump_stack+0xc1/0x128 [ 736.957434] [] panic+0x1bf/0x3bc [ 736.962431] [] ? add_taint.cold.6+0x16/0x16 [ 736.968397] [] ? ___preempt_schedule+0x16/0x18 [ 736.974604] [] ? nmi_trigger_cpumask_backtrace+0x100/0x14f [ 736.981848] [] watchdog+0x6c5/0xa20 [ 736.987095] [] ? watchdog+0x11c/0xa20 [ 736.992516] [] kthread+0x26d/0x300 [ 736.997676] [] ? reset_hung_task_detector+0x20/0x20 [ 737.004313] [] ? kthread_park+0xa0/0xa0 [ 737.009919] [] ? kthread_park+0xa0/0xa0 [ 737.015522] [] ? kthread_park+0xa0/0xa0 [ 737.021120] [] ret_from_fork+0x5c/0x70 [ 737.027154] Dumping ftrace buffer: [ 737.030694] (ftrace buffer empty) [ 737.034376] Kernel Offset: disabled [ 737.037983] Rebooting in 86400 seconds..