INIT: Id "5" 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 "1" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.28' (ECDSA) to the list of known hosts. 2018/06/26 10:37:42 parsed 1 programs 2018/06/26 10:37:44 executed programs: 0 [ 568.793549] IPVS: Creating netns size=2536 id=1 [ 568.928707] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 568.940948] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 568.985894] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 568.998112] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 569.045667] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 569.058118] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 569.070834] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 569.092952] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 569.670139] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 569.701587] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 569.707906] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 569.714687] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 2018/06/26 10:37:49 executed programs: 45 2018/06/26 10:37:54 executed programs: 101 2018/06/26 10:37:59 executed programs: 160 [ 736.496670] INFO: task syz-executor0:4853 blocked for more than 120 seconds. [ 736.503930] Not tainted 4.9.109-g7143cbf #6 [ 736.508903] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 736.517121] syz-executor0 D29496 4853 3926 0x20020004 [ 736.522942] ffff8801b9b40000 0000000000000000 ffff8801da0c9f80 ffff8801d9a6b000 [ 736.531373] ffff8801db321c18 ffff8801b7f5fb90 ffffffff839e8a3d 0000000000000002 [ 736.539437] 0000000041b58ab3 ffffffff843b9d5b 00ffffff81221500 ffff8801db3224e8 [ 736.547489] Call Trace: [ 736.550163] [] ? __schedule+0x64d/0x1bd0 [ 736.555871] [] schedule+0x7f/0x1b0 [ 736.561143] [] blk_mq_freeze_queue_wait+0x114/0x230 [ 736.567842] [] ? plug_ctx_cmp+0x100/0x100 [ 736.573655] [] ? prepare_to_wait_event+0x450/0x450 [ 736.580278] [] blk_mq_freeze_queue+0x1d/0x20 [ 736.587304] [] lo_ioctl+0x722/0x1aa0 [ 736.592659] [] lo_compat_ioctl+0xb2/0x140 [ 736.598514] [] ? lo_ioctl+0x1aa0/0x1aa0 [ 736.604188] [] compat_blkdev_ioctl+0x3a5/0x3ad0 [ 736.610563] [] ? cfq_dispatch_requests+0x2ef0/0x2ef0 [ 736.617495] [] ? compat_SyS_futex+0x1e1/0x2f0 [ 736.623656] [] ? security_file_ioctl+0x8f/0xc0 [ 736.630000] [] compat_SyS_ioctl+0x126/0x1fe0 [ 736.636054] [] ? cfq_dispatch_requests+0x2ef0/0x2ef0 [ 736.642841] [] ? do_ioctl+0x60/0x60 [ 736.648138] [] do_fast_syscall_32+0x2f7/0x870 [ 736.654265] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 736.661307] [] entry_SYSENTER_compat+0x90/0xa2 [ 736.667552] [ 736.667552] Showing all locks held in the system: [ 736.673870] 2 locks held by khungtaskd/519: [ 736.678214] #0: (rcu_read_lock){......}, at: [] watchdog+0x11c/0xa20 [ 736.687129] #1: (tasklist_lock){.+.+..}, at: [] debug_show_all_locks+0x79/0x218 [ 736.696900] 2 locks held by getty/3776: [ 736.700853] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x32/0x40 [ 736.710265] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x202/0x16e0 [ 736.720273] 1 lock held by syz-executor0/4853: [ 736.724957] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1aa0 [ 736.734496] 1 lock held by blkid/4854: [ 736.738420] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1aa0 [ 736.747833] [ 736.749443] ============================================= [ 736.749443] [ 736.756574] NMI backtrace for cpu 0 [ 736.760195] CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.109-g7143cbf #6 [ 736.767356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 736.776779] ffff8801d85c7d08 ffffffff81eb3e29 0000000000000000 0000000000000000 [ 736.784798] 0000000000000000 0000000000000001 ffffffff810b9580 ffff8801d85c7d40 [ 736.792841] ffffffff81ebf127 0000000000000000 0000000000000000 0000000000000002 [ 736.800892] Call Trace: [ 736.803480] [] dump_stack+0xc1/0x128 [ 736.808884] [] ? irq_force_complete_move+0x320/0x320 [ 736.815624] [] nmi_cpu_backtrace.cold.2+0x48/0x87 [ 736.822097] [] ? irq_force_complete_move+0x320/0x320 [ 736.828829] [] nmi_trigger_cpumask_backtrace+0x12a/0x14f [ 736.835920] [] arch_trigger_cpumask_backtrace+0x14/0x20 [ 736.842909] [] watchdog+0x6b4/0xa20 [ 736.848350] [] ? watchdog+0x11c/0xa20 [ 736.853840] [] kthread+0x26d/0x300 [ 736.859027] [] ? reset_hung_task_detector+0x20/0x20 [ 736.865673] [] ? kthread_park+0xa0/0xa0 [ 736.871299] [] ? kthread_park+0xa0/0xa0 [ 736.876912] [] ? kthread_park+0xa0/0xa0 [ 736.882519] [] ret_from_fork+0x5c/0x70 [ 736.888195] Sending NMI from CPU 0 to CPUs 1: [ 736.892835] NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff839f8546 [ 736.900571] Kernel panic - not syncing: hung_task: blocked tasks [ 736.906720] CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.109-g7143cbf #6 [ 736.913888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 736.923224] ffff8801d85c7cc8 ffffffff81eb3e29 ffffffff83c8bc00 00000000ffffffff [ 736.931222] 0000000000000000 0000000000000000 dffffc0000000000 ffff8801d85c7d88 [ 736.939264] ffffffff81421925 0000000041b58ab3 ffffffff843b9a00 ffffffff81421766 [ 736.947278] Call Trace: [ 736.949960] [] dump_stack+0xc1/0x128 [ 736.955314] [] panic+0x1bf/0x3bc [ 736.960316] [] ? add_taint.cold.6+0x16/0x16 [ 736.966276] [] ? ___preempt_schedule+0x16/0x18 [ 736.972496] [] ? nmi_trigger_cpumask_backtrace+0x100/0x14f [ 736.979759] [] watchdog+0x6c5/0xa20 [ 736.985207] [] ? watchdog+0x11c/0xa20 [ 736.990659] [] kthread+0x26d/0x300 [ 736.995841] [] ? reset_hung_task_detector+0x20/0x20 [ 737.002494] [] ? kthread_park+0xa0/0xa0 [ 737.008120] [] ? kthread_park+0xa0/0xa0 [ 737.013744] [] ? kthread_park+0xa0/0xa0 [ 737.019644] [] ret_from_fork+0x5c/0x70 [ 737.026625] Dumping ftrace buffer: [ 737.030255] (ftrace buffer empty) [ 737.034053] Kernel Offset: disabled [ 737.037672] Rebooting in 86400 seconds..