INIT: Id "1" 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 "3" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.127' (ECDSA) to the list of known hosts. 2019/02/13 09:28:59 parsed 1 programs 2019/02/13 09:29:02 executed programs: 0 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 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 [ 981.566885] INFO: task syz-executor.2:2202 blocked for more than 140 seconds. [ 981.574323] Not tainted 4.4.174+ #17 [ 981.578570] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 981.586522] syz-executor.2 D ffff8800b5a579c8 24272 2202 1 0x20020004 [ 981.594151] ffff8800b5a579c8 ffff8801d231af80 9a2bca8b36e90a23 ffff8801d231af80 [ 981.602202] 0000000000000000 ffff8801d231b800 ffff8801db71f180 ffff8801db71f1a8 [ 981.610592] ffff8801db71e898 ffff8801d72f0000 ffff8801d231af80 ffffed0016b4a001 [ 981.618623] Call Trace: [ 981.621355] [] schedule+0x99/0x1d0 [ 981.626543] [] schedule_preempt_disabled+0x13/0x20 [ 981.633182] [] mutex_lock_nested+0x3c2/0xb80 [ 981.639347] [] ? lo_ioctl+0x85/0x1a70 [ 981.644952] [] ? quarantine_put+0xda/0x180 [ 981.650853] [] ? mutex_trylock+0x500/0x500 [ 981.656803] [] ? trace_hardirqs_on+0xd/0x10 [ 981.662760] [] lo_ioctl+0x85/0x1a70 [ 981.668087] [] ? compat_SyS_open+0x2a/0x40 [ 981.673997] [] ? do_fast_syscall_32+0x32d/0xa90 [ 981.680415] [] ? sysenter_flags_fixed+0xd/0x1a [ 981.686638] [] lo_compat_ioctl+0xad/0x140 [ 981.692440] [] ? lo_ioctl+0x1a70/0x1a70 [ 981.698195] [] compat_blkdev_ioctl+0xca0/0x344f [ 981.704523] [] ? cfq_merged_request+0x100/0x100 [ 981.710989] [] ? get_unused_fd_flags+0xd0/0xd0 [ 981.717286] [] ? security_file_ioctl+0x8f/0xc0 [ 981.723495] [] ? cfq_merged_request+0x100/0x100 [ 981.729823] [] compat_SyS_ioctl+0x403/0x2210 [ 981.735870] [] ? compat_SyS_ppoll+0x3d0/0x3d0 [ 981.742044] [] ? putname+0xe0/0x120 [ 981.747339] [] ? do_sys_open+0x237/0x600 [ 981.753096] [] ? filp_open+0x70/0x70 [ 981.758497] [] ? SyS_mkdirat+0x164/0x250 [ 981.764298] [] ? SyS_mknod+0x40/0x40 [ 981.769802] [] ? do_fast_syscall_32+0xd6/0xa90 [ 981.776021] [] ? compat_SyS_ppoll+0x3d0/0x3d0 [ 981.782185] [] do_fast_syscall_32+0x32d/0xa90 [ 981.788456] [] sysenter_flags_fixed+0xd/0x1a [ 981.794652] 1 lock held by syz-executor.2/2202: [ 981.799333] #0: (loop_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x85/0x1a70 [ 981.808576] Sending NMI to all CPUs: [ 981.812668] NMI backtrace for cpu 0 [ 981.816274] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.174+ #17 [ 981.822610] task: ffffffff82e151c0 task.stack: ffffffff82e00000 [ 981.828723] RIP: 0010:[] [] native_safe_halt+0x2/0x10 [ 981.837282] RSP: 0018:ffffffff82e07db0 EFLAGS: 00000246 [ 981.842712] RAX: 0000000000000007 RBX: ffffffff8319bf68 RCX: 0000000000000000 [ 981.850003] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff82e15a84 [ 981.857274] RBP: ffffffff82e07de0 R08: 0000000000000000 R09: 0000000000000000 [ 981.864534] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 981.871837] R13: ffffffff82e08000 R14: dffffc0000000000 R15: ffffffff82e00000 [ 981.879106] FS: 0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 [ 981.887375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 981.893237] CR2: 00000000017c1000 CR3: 00000001d74c1000 CR4: 00000000001606b0 [ 981.900537] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 981.907805] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 981.915052] Stack: [ 981.917210] ffffffff81020b16 ffffffff82e00000 0000000000000000 ffffffff82e08000 [ 981.924716] dffffc0000000000 ffffffff82e00000 ffffffff82e07df0 ffffffff81022d50 [ 981.932265] ffffffff82e07e08 ffffffff811eb4c8 0000000000000000 ffffffff82e07ed0 [ 981.939793] Call Trace: [ 981.942494] [] ? default_idle+0x56/0x3d0 [ 981.948212] [] arch_cpu_idle+0x10/0x20 [ 981.953793] [] default_idle_call+0x48/0x70 [ 981.959699] [] cpu_startup_entry+0x6d1/0x810 [ 981.965731] [] ? complete+0x18/0x70 [ 981.971015] [] ? call_cpuidle+0xe0/0xe0 [ 981.976618] [] ? schedule+0xab/0x1d0 [ 981.981988] [] rest_init+0x190/0x199 [ 981.987395] [] ? trace_event_define_fields_x86_irq_vector+0x2c/0x2c [ 981.995542] [] start_kernel+0x64a/0x67e [ 982.001308] [] ? thread_stack_cache_init+0xb/0xb [ 982.007732] [] ? early_idt_handler_array+0x120/0x120 [ 982.014558] [] ? early_idt_handler_array+0x120/0x120 [ 982.021318] [] x86_64_start_reservations+0x29/0x2b [ 982.028002] [] x86_64_start_kernel+0x137/0x15a [ 982.034448] 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 [ 982.053602] NMI backtrace for cpu 1 [ 982.057237] CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #17 [ 982.063815] task: ffff8801da6f4740 task.stack: ffff8800001d0000 [ 982.069883] RIP: 0010:[] [] flat_send_IPI_mask+0xf7/0x1b0 [ 982.078632] RSP: 0018:ffff8800001d7c88 EFLAGS: 00000046 [ 982.084060] RAX: 0000000000000000 RBX: 0000000000000c00 RCX: 0000000000000000 [ 982.091420] RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fc300 [ 982.098821] RBP: ffff8800001d7cb8 R08: 0000000000000018 R09: 0000000000000000 [ 982.106179] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246 [ 982.113501] R13: 0000000003000000 R14: ffffffff82e5f2e0 R15: 0000000000000002 [ 982.120770] FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 [ 982.129146] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 982.135087] CR2: 00000000019d4000 CR3: 00000001d74c1000 CR4: 00000000001606b0 [ 982.142446] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 982.149722] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 982.157002] Stack: [ 982.159130] 0000000000000001 ffffffff82e5f2e0 ffffffff831a6ac0 fffffbfff0634c34 [ 982.166636] 000000000001b6c0 0000000000000008 ffff8800001d7cd8 ffffffff81092bee [ 982.174185] 0000000000000008 ffffffff82924260 ffff8800001d7d30 ffffffff81ab8252 [ 982.181706] Call Trace: [ 982.184264] [] nmi_raise_cpu_backtrace+0x5e/0x80 [ 982.190673] [] nmi_trigger_all_cpu_backtrace.cold+0xa1/0xae [ 982.198022] [] ? print_lock+0xa8/0xab [ 982.203446] [] ? irq_force_complete_move+0x330/0x330 [ 982.210193] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 982.217201] [] watchdog.cold+0xd3/0xee [ 982.222713] [] ? watchdog+0xac/0xa00 [ 982.228080] [] ? reset_hung_task_detector+0x20/0x20 [ 982.234724] [] kthread+0x273/0x310 [ 982.240041] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.246699] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.253001] [] ? finish_task_switch+0x1e1/0x660 [ 982.259333] [] ? finish_task_switch+0x1b3/0x660 [ 982.265643] [] ? __schedule+0x7af/0x1ee0 [ 982.271366] [] ? __schedule+0x7a3/0x1ee0 [ 982.277067] [] ? __schedule+0x7af/0x1ee0 [ 982.282764] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.289448] [] ret_from_fork+0x55/0x80 [ 982.294957] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.301628] 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 [ 982.320712] Kernel panic - not syncing: hung_task: blocked tasks [ 982.326836] CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #17 [ 982.333301] 0000000000000000 3d8e0cab2dc194eb ffff8800001d7c60 ffffffff81aad1a1 [ 982.341313] ffff8801d231af80 ffffffff82872120 dffffc0000000000 0000000000000003 [ 982.349306] 00000000003fff9f ffff8800001d7d40 ffffffff813a48c2 0000000041b58ab3 [ 982.357297] Call Trace: [ 982.359864] [] dump_stack+0xc1/0x120 [ 982.365265] [] panic+0x1b9/0x37b [ 982.370265] [] ? add_taint.cold+0x16/0x16 [ 982.376048] [] ? nmi_trigger_all_cpu_backtrace+0x3e1/0x490 [ 982.383470] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.390821] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.398223] [] watchdog.cold+0xe4/0xee [ 982.403917] [] ? watchdog+0xac/0xa00 [ 982.409263] [] ? reset_hung_task_detector+0x20/0x20 [ 982.415920] [] kthread+0x273/0x310 [ 982.421097] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.427746] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.434046] [] ? finish_task_switch+0x1e1/0x660 [ 982.440360] [] ? finish_task_switch+0x1b3/0x660 [ 982.446730] [] ? __schedule+0x7af/0x1ee0 [ 982.452425] [] ? __schedule+0x7a3/0x1ee0 [ 982.458115] [] ? __schedule+0x7af/0x1ee0 [ 982.463823] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.470472] [] ret_from_fork+0x55/0x80 [ 982.475991] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.483033] Kernel Offset: disabled [ 982.486662] Rebooting in 86400 seconds..