INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.25' (ECDSA) to the list of known hosts. 2018/06/17 10:47:56 parsed 1 programs 2018/06/17 10:47:58 executed programs: 0 [ 569.111491] IPVS: Creating netns size=2536 id=1 [ 569.234865] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 569.247480] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 569.291416] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 569.303297] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 569.347262] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 569.359152] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 569.371015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 569.391852] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 569.886932] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 569.912122] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 569.918288] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 569.925788] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 736.593967] INFO: task syz-executor0:4299 blocked for more than 120 seconds. [ 736.601213] Not tainted 4.9.109-ga4230be #2 [ 736.606494] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 736.614870] syz-executor0 D28912 4299 3923 0x20020004 [ 736.620730] ffff8801cf6f4800 0000000000000000 ffff8801d021b480 ffffffff84629800 [ 736.629028] ffff8801db221c18 ffff8801d013fb90 ffffffff839e8a8d 0000000000000002 [ 736.637168] 0000000041b58ab3 ffffffff843b9d9b 00ffffff81221500 ffff8801db2224e8 [ 736.645284] Call Trace: [ 736.647900] [] ? __schedule+0x64d/0x1bd0 [ 736.653607] [] schedule+0x7f/0x1b0 [ 736.658878] [] blk_mq_freeze_queue_wait+0x114/0x230 [ 736.665848] [] ? plug_ctx_cmp+0x100/0x100 [ 736.671647] [] ? prepare_to_wait_event+0x450/0x450 [ 736.678238] [] blk_mq_freeze_queue+0x1d/0x20 [ 736.684325] [] lo_ioctl+0x722/0x1aa0 [ 736.689662] [] lo_compat_ioctl+0xb2/0x140 [ 736.695566] [] ? lo_ioctl+0x1aa0/0x1aa0 [ 736.701450] [] compat_blkdev_ioctl+0x3a5/0x3ad0 [ 736.707810] [] ? debug_check_no_obj_freed+0x2ec/0x930 [ 736.714828] [] ? cfq_dispatch_requests+0x2ef0/0x2ef0 [ 736.721605] [] ? compat_SyS_futex+0x1e1/0x2f0 [ 736.727784] [] ? security_file_ioctl+0x8f/0xc0 [ 736.734196] [] compat_SyS_ioctl+0x126/0x1fe0 [ 736.740228] [] ? cfq_dispatch_requests+0x2ef0/0x2ef0 [ 736.747220] [] ? do_ioctl+0x60/0x60 [ 736.752575] [] do_fast_syscall_32+0x2f7/0x870 [ 736.758773] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 736.765954] [] entry_SYSENTER_compat+0x90/0xa2 [ 736.772157] [ 736.772157] Showing all locks held in the system: [ 736.778485] 2 locks held by khungtaskd/519: [ 736.782793] #0: (rcu_read_lock){......}, at: [] watchdog+0x11c/0xa20 [ 736.792048] #1: (tasklist_lock){.+.+..}, at: [] debug_show_all_locks+0x79/0x218 [ 736.802286] 1 lock held by rsyslogd/3677: [ 736.806442] #0: (&f->f_pos_lock){+.+.+.}, at: [] __fdget_pos+0xac/0xd0 [ 736.815625] 2 locks held by getty/3772: [ 736.819571] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x32/0x40 [ 736.828917] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x202/0x16e0 [ 736.839539] 1 lock held by syz-executor0/4299: [ 736.844133] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1aa0 [ 736.853716] 1 lock held by blkid/4300: [ 736.857634] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1aa0 [ 736.867030] [ 736.868633] ============================================= [ 736.868633] [ 736.876273] NMI backtrace for cpu 0 [ 736.880064] CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.109-ga4230be #2 [ 736.887229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 736.896562] ffff8801d8667d08 ffffffff81eb3e29 0000000000000000 0000000000000000 [ 736.904684] 0000000000000000 0000000000000001 ffffffff810b9580 ffff8801d8667d40 [ 736.912829] ffffffff81ebf127 0000000000000000 0000000000000000 0000000000000002 [ 736.920853] Call Trace: [ 736.923548] [] dump_stack+0xc1/0x128 [ 736.929652] [] ? irq_force_complete_move+0x320/0x320 [ 736.936392] [] nmi_cpu_backtrace.cold.2+0x48/0x87 [ 736.942961] [] ? irq_force_complete_move+0x320/0x320 [ 736.949709] [] nmi_trigger_cpumask_backtrace+0x12a/0x14f [ 736.956795] [] arch_trigger_cpumask_backtrace+0x14/0x20 [ 736.963788] [] watchdog+0x6b4/0xa20 [ 736.969052] [] ? watchdog+0x11c/0xa20 [ 736.974537] [] kthread+0x26d/0x300 [ 736.979802] [] ? reset_hung_task_detector+0x20/0x20 [ 736.986443] [] ? kthread_park+0xa0/0xa0 [ 736.992054] [] ? kthread_park+0xa0/0xa0 [ 736.997651] [] ? kthread_park+0xa0/0xa0 [ 737.003249] [] ret_from_fork+0x5c/0x70 [ 737.008912] Sending NMI from CPU 0 to CPUs 1: [ 737.013455] NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff839f8596 [ 737.020945] Kernel panic - not syncing: hung_task: blocked tasks [ 737.027086] CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.109-ga4230be #2 [ 737.034259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 737.043596] ffff8801d8667cc8 ffffffff81eb3e29 ffffffff83c8bbe0 00000000ffffffff [ 737.051702] 0000000000000000 0000000000000000 dffffc0000000000 ffff8801d8667d88 [ 737.059785] ffffffff81421925 0000000041b58ab3 ffffffff843b9a40 ffffffff81421766 [ 737.067923] Call Trace: [ 737.070674] [] dump_stack+0xc1/0x128 [ 737.076483] [] panic+0x1bf/0x3bc [ 737.082394] [] ? add_taint.cold.6+0x16/0x16 [ 737.088609] [] ? ___preempt_schedule+0x16/0x18 [ 737.095272] [] ? nmi_trigger_cpumask_backtrace+0x100/0x14f [ 737.102639] [] watchdog+0x6c5/0xa20 [ 737.107913] [] ? watchdog+0x11c/0xa20 [ 737.113370] [] kthread+0x26d/0x300 [ 737.118545] [] ? reset_hung_task_detector+0x20/0x20 [ 737.125219] [] ? kthread_park+0xa0/0xa0 [ 737.130844] [] ? kthread_park+0xa0/0xa0 [ 737.136468] [] ? kthread_park+0xa0/0xa0 [ 737.142099] [] ret_from_fork+0x5c/0x70 [ 737.148539] Dumping ftrace buffer: [ 737.152141] (ftrace buffer empty) [ 737.155840] Kernel Offset: disabled [ 737.159476] Rebooting in 86400 seconds..