INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes [ 459.797082] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.27' (ECDSA) to the list of known hosts. [ 465.300879] random: sshd: uninitialized urandom read (32 bytes read) 2018/07/17 10:28:15 parsed 1 programs [ 466.733190] random: cc1: uninitialized urandom read (8 bytes read) [ 467.802588] random: crng init done 2018/07/17 10:28:17 executed programs: 0 [ 467.962776] IPVS: Creating netns size=2536 id=1 INIT: Id "4" 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 "2" 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 [ 715.993109] INFO: task loop0:3920 blocked for more than 140 seconds. [ 715.999645] Not tainted 4.9.112-g9e79039 #11 [ 716.004695] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.012636] loop0 D26296 3920 2 0x00000000 [ 716.018543] ffff8801d9560000 ffff8801c05cc000 ffff8801d6e37480 ffff8801b6049800 [ 716.026611] ffff8801db221c18 ffff8801b5a46df0 ffffffff839e907d 0000000041b58ab3 [ 716.034676] ffffffff843c36c0 ffffffff812361d0 0000000000000000 ffff8801db2224e8 [ 716.042656] Call Trace: [ 716.045546] [] ? __schedule+0x64d/0x1bd0 [ 716.051308] [] ? debug_check_no_locks_freed+0x210/0x210 [ 716.058345] [] schedule+0x7f/0x1b0 [ 716.063544] [] schedule_timeout+0x861/0xf70 [ 716.069491] [] ? usleep_range+0x140/0x140 [ 716.075351] [] ? kvm_clock_read+0x23/0x40 [ 716.081138] [] ? kvm_clock_get_cycles+0x9/0x10 [ 716.087427] [] ? ktime_get+0x185/0x1e0 [ 716.093012] [] ? __delayacct_blkio_start+0x41/0x80 [ 716.099581] [] io_schedule_timeout+0x1ba/0x390 [ 716.105859] [] bt_get.isra.8+0x27c/0x780 [ 716.111565] [] ? __unwind_start+0x14d/0x3c0 [ 716.117547] [] ? blk_mq_reinit_tagset+0x310/0x310 [ 716.124039] [] ? prepare_to_wait_event+0x450/0x450 [ 716.130593] [] ? __lock_acquire+0x654/0x4070 [ 716.136651] [] blk_mq_get_tag+0xac/0x220 [ 716.142368] [] __blk_mq_alloc_request+0x2a/0xaa0 [ 716.148815] [] blk_mq_map_request.isra.38+0x3ab/0x900 [ 716.155671] [] ? blk_mq_map_request.isra.38+0xb2/0x900 [ 716.162583] [] ? blk_mq_exit_hctx.isra.42+0x3c0/0x3c0 [ 716.169436] [] blk_sq_make_request+0x1d6/0x1220 [ 716.175747] [] ? blk_queue_enter+0x315/0x620 [ 716.181779] [] ? blk_mq_insert_requests+0x900/0x900 [ 716.188473] [] ? generic_make_request_checks+0x4f4/0x1610 [ 716.195669] [] ? blk_exit_rl+0x50/0x50 [ 716.201221] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 716.208083] [] generic_make_request+0x20e/0x9b0 [ 716.214407] [] ? debug_check_no_locks_freed+0x210/0x210 [ 716.221399] [] ? blk_queue_enter+0x620/0x620 [ 716.227510] [] ? do_direct_IO+0x11db/0x9710 [ 716.233482] [] ? debug_check_no_locks_freed+0x210/0x210 [ 716.240472] [] submit_bio+0xb0/0x460 [ 716.245837] [] ? generic_make_request+0x9b0/0x9b0 [ 716.252319] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 716.259296] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 716.266150] [] do_blockdev_direct_IO+0x35da/0x5a80 [ 716.272733] [] ? find_get_pages_tag+0x494/0x9f0 [ 716.279080] [] ? do_direct_IO+0x9710/0x9710 [ 716.285063] [] ? find_get_entries_tag+0x920/0x920 [ 716.291556] [] ? write_cache_pages+0xef0/0xef0 [ 716.297821] [] ? current_kernel_time64+0xc9/0x120 [ 716.304310] [] ? timespec_trunc+0xc1/0x160 [ 716.310169] [] ? I_BDEV+0x20/0x20 [ 716.315318] [] ? __atime_needs_update+0x2bd/0x950 [ 716.321797] [] ? __filemap_fdatawrite_range+0x1bb/0x250 [ 716.328825] [] ? I_BDEV+0x20/0x20 [ 716.333930] [] __blockdev_direct_IO+0xa5/0xd0 [ 716.340059] [] blkdev_direct_IO+0xa0/0xd0 [ 716.345854] [] generic_file_read_iter+0x660/0x1a90 [ 716.352439] [] ? update_sd_lb_stats+0x3a20/0x3a20 [ 716.358953] [] ? wait_on_page_bit_killable+0x140/0x140 [ 716.365961] [] ? check_preemption_disabled+0x3b/0x170 [ 716.372795] [] blkdev_read_iter+0x105/0x170 [ 716.378796] [] lo_rw_aio+0x6b3/0x8a0 [ 716.384173] [] ? transfer_xor+0x460/0x460 [ 716.389978] [] ? lock_is_held+0x140/0x140 [ 716.395831] [] loop_queue_work+0x3d7/0x2320 [ 716.401783] [] ? debug_check_no_locks_freed+0x210/0x210 [ 716.408841] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 716.415159] [] ? lo_rw_aio+0x8a0/0x8a0 [ 716.420670] [] ? _raw_spin_unlock_irq+0x38/0x50 [ 716.426985] [] ? _raw_spin_unlock_irq+0x27/0x50 [ 716.433297] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 716.440161] [] kthread_worker_fn+0x249/0x6b0 [ 716.446222] [] ? _raw_spin_unlock_irq+0x38/0x50 [ 716.452516] [] ? __kthread_init_worker+0x100/0x100 [ 716.459111] [] ? __kthread_parkme+0x175/0x240 [ 716.465264] [] kthread+0x26d/0x300 [ 716.470430] [] ? __kthread_init_worker+0x100/0x100 [ 716.477077] [] ? kthread_park+0xa0/0xa0 [ 716.482680] [] ? kthread_park+0xa0/0xa0 [ 716.488319] [] ? kthread_park+0xa0/0xa0 [ 716.493986] [] ret_from_fork+0x5c/0x70 [ 716.499512] [ 716.499512] Showing all locks held in the system: [ 716.505843] 2 locks held by khungtaskd/519: [ 716.510140] #0: (rcu_read_lock){......}, at: [] watchdog+0x11c/0xa20 [ 716.518906] #1: (tasklist_lock){.+.+..}, at: [] debug_show_all_locks+0x79/0x218 [ 716.528622] 1 lock held by rsyslogd/3675: [ 716.532739] #0: (&f->f_pos_lock){+.+.+.}, at: [] __fdget_pos+0xac/0xd0 [ 716.541651] 2 locks held by getty/3771: [ 716.545627] #0: (&tty->ldisc_sem){++++++}, at: [] ldsem_down_read+0x32/0x40 [ 716.554983] #1: (&ldata->atomic_read_lock){+.+...}, at: [] n_tty_read+0x202/0x16e0 [ 716.564967] 1 lock held by syz-executor0/3921: [ 716.569523] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1aa0 [ 716.578916] 1 lock held by blkid/3946: [ 716.582772] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1aa0 [ 716.592128] [ 716.593760] ============================================= [ 716.593760] [ 716.600822] NMI backtrace for cpu 0 [ 716.604452] CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.112-g9e79039 #11 [ 716.611699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.621041] ffff8801d8567d08 ffffffff81eb3249 0000000000000000 0000000000000000 [ 716.629022] 0000000000000000 0000000000000001 ffffffff810b9bd0 ffff8801d8567d40 [ 716.636999] ffffffff81ebe547 0000000000000000 0000000000000000 0000000000000003 [ 716.644974] Call Trace: [ 716.647581] [] dump_stack+0xc1/0x128 [ 716.652951] [] ? irq_force_complete_move+0x320/0x320 [ 716.659679] [] nmi_cpu_backtrace.cold.2+0x48/0x87 [ 716.666151] [] ? irq_force_complete_move+0x320/0x320 [ 716.672880] [] nmi_trigger_cpumask_backtrace+0x12a/0x14f [ 716.679960] [] arch_trigger_cpumask_backtrace+0x14/0x20 [ 716.686965] [] watchdog+0x6b4/0xa20 [ 716.692218] [] ? watchdog+0x11c/0xa20 [ 716.697640] [] kthread+0x26d/0x300 [ 716.702800] [] ? reset_hung_task_detector+0x20/0x20 [ 716.709437] [] ? kthread_park+0xa0/0xa0 [ 716.715044] [] ? kthread_park+0xa0/0xa0 [ 716.720649] [] ? kthread_park+0xa0/0xa0 [ 716.726252] [] ret_from_fork+0x5c/0x70 [ 716.731850] Sending NMI from CPU 0 to CPUs 1: [ 716.736371] NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff839f8b86 [ 716.743645] Kernel panic - not syncing: hung_task: blocked tasks [ 716.749781] CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.112-g9e79039 #11 [ 716.757028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.766358] ffff8801d8567cc8 ffffffff81eb3249 ffffffff83c8bc20 00000000ffffffff [ 716.774349] 0000000000000000 0000000000000000 dffffc0000000000 ffff8801d8567d88 [ 716.782336] ffffffff81421a55 0000000041b58ab3 ffffffff843bae78 ffffffff81421896 [ 716.790325] Call Trace: [ 716.792905] [] dump_stack+0xc1/0x128 [ 716.798242] [] panic+0x1bf/0x3bc [ 716.803229] [] ? add_taint.cold.6+0x16/0x16 [ 716.809232] [] ? ___preempt_schedule+0x16/0x18 [ 716.815439] [] ? nmi_trigger_cpumask_backtrace+0x100/0x14f [ 716.822686] [] watchdog+0x6c5/0xa20 [ 716.827932] [] ? watchdog+0x11c/0xa20 [ 716.833355] [] kthread+0x26d/0x300 [ 716.838517] [] ? reset_hung_task_detector+0x20/0x20 [ 716.845152] [] ? kthread_park+0xa0/0xa0 [ 716.850747] [] ? kthread_park+0xa0/0xa0 [ 716.856339] [] ? kthread_park+0xa0/0xa0 [ 716.861944] [] ret_from_fork+0x5c/0x70 [ 716.867974] Dumping ftrace buffer: [ 716.871515] (ftrace buffer empty) [ 716.875208] Kernel Offset: disabled [ 716.878818] Rebooting in 86400 seconds..