Warning: Permanently added '10.128.0.75' (ECDSA) to the list of known hosts. 2019/02/13 07:23:03 parsed 1 programs 2019/02/13 07:23:06 executed programs: 0 INIT: Id "3" 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 "6" 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 [ 981.617776] INFO: task syz-executor.1:3146 blocked for more than 140 seconds. [ 981.625125] Not tainted 4.4.174+ #4 [ 981.629319] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 981.637277] syz-executor.1 D ffff8801d5e8f818 28384 3146 2210 0x00000004 [ 981.644892] ffff8801d5e8f818 ffff8801d671c740 3ad5bc2a720dfb73 ffff8801d671c740 [ 981.652959] 0000000000000001 ffff8801d671d000 ffff8801db61f180 ffff8801db61f1a8 [ 981.661027] ffff8801db61e898 ffffffff82e151c0 ffff8801d671c740 ffffed003abd1001 [ 981.669256] Call Trace: [ 981.671844] [] schedule+0x99/0x1d0 [ 981.677013] [] schedule_preempt_disabled+0x13/0x20 [ 981.683623] [] mutex_lock_nested+0x3c2/0xb80 [ 981.689703] [] ? blkdev_reread_part+0x1f/0x40 [ 981.695976] [] ? find_next_bit+0x44/0x50 [ 981.701740] [] ? mutex_trylock+0x500/0x500 [ 981.707634] [] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 981.714455] [] blkdev_reread_part+0x1f/0x40 [ 981.720441] [] loop_reread_partitions+0x7c/0x90 [ 981.726744] [] loop_set_status+0xc02/0x1260 [ 981.732719] [] loop_set_status64+0xc6/0x120 [ 981.738709] [] ? loop_set_status_old+0x320/0x320 [ 981.745374] [] ? avc_ss_reset+0x110/0x110 [ 981.751260] [] lo_ioctl+0x4b8/0x1a70 [ 981.756616] [] ? loop_queue_work+0x2290/0x2290 [ 981.762874] [] blkdev_ioctl+0xed9/0x1940 [ 981.768897] [] ? blkpg_ioctl+0x900/0x900 [ 981.774587] [] ? trace_hardirqs_on+0x10/0x10 [ 981.780672] [] ? _raw_spin_unlock+0x2d/0x50 [ 981.786827] [] ? handle_mm_fault+0x98d/0x3140 [ 981.793004] [] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 981.799916] [] block_ioctl+0xde/0x120 [ 981.805344] [] ? blkdev_read_iter+0x160/0x160 [ 981.811740] [] do_vfs_ioctl+0x6e7/0xfa0 [ 981.817369] [] ? selinux_parse_skb.constprop.0+0x16b0/0x16b0 [ 981.824843] [] ? ioctl_preallocate+0x200/0x200 [ 981.831083] [] ? __might_fault+0x117/0x1d0 [ 981.837077] [] ? __might_fault+0x191/0x1d0 [ 981.843178] [] ? __might_fault+0xe7/0x1d0 [ 981.849086] [] ? security_file_ioctl+0x8f/0xc0 [ 981.855295] [] SyS_ioctl+0x8f/0xc0 [ 981.860698] [] entry_SYSCALL_64_fastpath+0x1e/0x9a [ 981.867276] 2 locks held by syz-executor.1/3146: [ 981.872190] #0: (loop_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x85/0x1a70 [ 981.881557] #1: (&bdev->bd_mutex){+.+.+.}, at: [] blkdev_reread_part+0x1f/0x40 [ 981.891478] Sending NMI to all CPUs: [ 981.895472] NMI backtrace for cpu 0 [ 981.899114] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.174+ #4 [ 981.905327] task: ffffffff82e151c0 task.stack: ffffffff82e00000 [ 981.911400] RIP: 0010:[] [] native_safe_halt+0x2/0x10 [ 981.919805] RSP: 0018:ffffffff82e07db0 EFLAGS: 00000246 [ 981.925493] RAX: 0000000000000007 RBX: ffffffff8319bf68 RCX: 0000000000000000 [ 981.932838] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff82e15a84 [ 981.940471] RBP: ffffffff82e07de0 R08: 0000000000000000 R09: 0000000000000000 [ 981.947757] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 981.955131] R13: ffffffff82e08000 R14: dffffc0000000000 R15: ffffffff82e00000 [ 981.962562] FS: 0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 [ 981.970886] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 981.976756] CR2: 00000000007831ec CR3: 00000000b8c53000 CR4: 00000000001606b0 [ 981.984117] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 981.991419] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 981.998694] Stack: [ 982.000828] ffffffff81020b16 ffffffff82e00000 0000000000000000 ffffffff82e08000 [ 982.008372] dffffc0000000000 ffffffff82e00000 ffffffff82e07df0 ffffffff81022d50 [ 982.016003] ffffffff82e07e08 ffffffff811eb4c8 0000000000000000 ffffffff82e07ed0 [ 982.023576] Call Trace: [ 982.026149] [] ? default_idle+0x56/0x3d0 [ 982.031879] [] arch_cpu_idle+0x10/0x20 [ 982.037408] [] default_idle_call+0x48/0x70 [ 982.043298] [] cpu_startup_entry+0x6d1/0x810 [ 982.049440] [] ? complete+0x18/0x70 [ 982.054690] [] ? call_cpuidle+0xe0/0xe0 [ 982.060308] [] ? schedule+0xab/0x1d0 [ 982.065718] [] rest_init+0x190/0x199 [ 982.071132] [] ? trace_event_define_fields_x86_irq_vector+0x2c/0x2c [ 982.079198] [] start_kernel+0x64a/0x67e [ 982.084803] [] ? thread_stack_cache_init+0xb/0xb [ 982.091245] [] ? early_idt_handler_array+0x120/0x120 [ 982.097999] [] ? early_idt_handler_array+0x120/0x120 [ 982.104726] [] x86_64_start_reservations+0x29/0x2b [ 982.111331] [] x86_64_start_kernel+0x137/0x15a [ 982.117612] Code: 2e 0f 1f 84 00 00 00 00 00 fa c3 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 fb c3 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 fb f4 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f4 c3 0f 1f 40 00 66 [ 982.136658] NMI backtrace for cpu 1 [ 982.140297] CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #4 [ 982.146689] task: ffff8801da6c2f80 task.stack: ffff8800001e8000 [ 982.153048] RIP: 0010:[] [] flat_send_IPI_mask+0xf7/0x1b0 [ 982.161808] RSP: 0018:ffff8800001efc88 EFLAGS: 00000046 [ 982.167239] RAX: 0000000000000000 RBX: 0000000000000c00 RCX: 0000000000000000 [ 982.174576] RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fc300 [ 982.181925] RBP: ffff8800001efcb8 R08: 0000000000000018 R09: 0000000000000000 [ 982.189291] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246 [ 982.196560] R13: 0000000003000000 R14: ffffffff82e5f2e0 R15: 0000000000000002 [ 982.203855] FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 [ 982.212318] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 982.218224] CR2: 00000000007831ec CR3: 00000000b5072000 CR4: 00000000001606b0 [ 982.225483] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 982.232875] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 982.240256] Stack: [ 982.242388] 0000000000000001 ffffffff82e5f2e0 ffffffff831a6ac0 fffffbfff0634c34 [ 982.249927] 000000000001b6c0 0000000000000008 ffff8800001efcd8 ffffffff81092bee [ 982.257646] 0000000000000008 ffffffff82924260 ffff8800001efd30 ffffffff81ab8252 [ 982.265768] Call Trace: [ 982.268400] [] nmi_raise_cpu_backtrace+0x5e/0x80 [ 982.274793] [] nmi_trigger_all_cpu_backtrace.cold+0xa1/0xae [ 982.282266] [] ? print_lock+0xa8/0xab [ 982.287759] [] ? irq_force_complete_move+0x330/0x330 [ 982.294506] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 982.301560] [] watchdog.cold+0xd3/0xee [ 982.307084] [] ? watchdog+0xac/0xa00 [ 982.312463] [] ? reset_hung_task_detector+0x20/0x20 [ 982.319139] [] kthread+0x273/0x310 [ 982.324385] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.331291] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.337724] [] ? finish_task_switch+0x1e1/0x660 [ 982.344030] [] ? finish_task_switch+0x1b3/0x660 [ 982.350379] [] ? __schedule+0x7af/0x1ee0 [ 982.356122] [] ? __schedule+0x7a3/0x1ee0 [ 982.361886] [] ? __schedule+0x7af/0x1ee0 [ 982.367713] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.374519] [] ret_from_fork+0x55/0x80 [ 982.380094] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.386845] Code: 00 c3 5f ff 80 e6 10 75 e1 41 c1 e5 18 44 89 2c 25 10 c3 5f ff 44 89 fa 09 da 80 cf 04 41 83 ff 02 0f 44 d3 89 14 25 00 c3 5f ff <41> f7 c4 00 02 00 00 75 1e 4c 89 e7 57 9d 0f 1f 44 00 00 e8 f1 [ 982.406196] Kernel panic - not syncing: hung_task: blocked tasks [ 982.412340] CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #4 [ 982.420289] 0000000000000000 82fdf75977d02bda ffff8800001efc60 ffffffff81aad1a1 [ 982.428509] ffff8801d671c740 ffffffff82872120 dffffc0000000000 0000000000000002 [ 982.436568] 00000000003fff88 ffff8800001efd40 ffffffff813a48c2 0000000041b58ab3 [ 982.444897] Call Trace: [ 982.447475] [] dump_stack+0xc1/0x120 [ 982.452822] [] panic+0x1b9/0x37b [ 982.457879] [] ? add_taint.cold+0x16/0x16 [ 982.463805] [] ? nmi_trigger_all_cpu_backtrace+0x3e1/0x490 [ 982.471063] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.478385] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.485962] [] watchdog.cold+0xe4/0xee [ 982.491581] [] ? watchdog+0xac/0xa00 [ 982.496985] [] ? reset_hung_task_detector+0x20/0x20 [ 982.503644] [] kthread+0x273/0x310 [ 982.508836] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.516165] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.522481] [] ? finish_task_switch+0x1e1/0x660 [ 982.528952] [] ? finish_task_switch+0x1b3/0x660 [ 982.535434] [] ? __schedule+0x7af/0x1ee0 [ 982.541142] [] ? __schedule+0x7a3/0x1ee0 [ 982.546945] [] ? __schedule+0x7af/0x1ee0 [ 982.552655] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.559302] [] ret_from_fork+0x55/0x80 [ 982.564906] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.572177] Kernel Offset: disabled [ 982.575833] Rebooting in 86400 seconds..