INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "6" 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 INIT: Id "3" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.126' (ECDSA) to the list of known hosts. 2019/03/10 08:40:23 parsed 1 programs 2019/03/10 08:40:27 executed programs: 0 INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes [ 981.615251] INFO: task syz-executor.3:2204 blocked for more than 140 seconds. [ 981.622573] Not tainted 4.4.174+ #17 [ 981.627003] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 981.635012] syz-executor.3 D ffff8801d83b79c8 24960 2204 1 0x20020004 [ 981.642831] ffff8801d83b79c8 ffff8801d2f217c0 d45b3e66864210a1 ffff8801d2f217c0 [ 981.651205] 0000000000000000 ffff8801d2f22000 ffff8801db71f180 ffff8801db71f1a8 [ 981.662406] ffff8801db71e898 ffff8801d53397c0 ffff8801d2f217c0 ffffed003b076001 [ 981.670544] Call Trace: [ 981.673269] [] schedule+0x99/0x1d0 [ 981.678531] [] schedule_preempt_disabled+0x13/0x20 [ 981.685189] [] mutex_lock_nested+0x3c2/0xb80 [ 981.691373] [] ? lo_ioctl+0x85/0x1a70 [ 981.697023] [] ? quarantine_put+0xda/0x180 [ 981.702919] [] ? mutex_trylock+0x500/0x500 [ 981.709092] [] ? trace_hardirqs_on+0xd/0x10 [ 981.715102] [] lo_ioctl+0x85/0x1a70 [ 981.720463] [] ? compat_SyS_open+0x2a/0x40 [ 981.726479] [] ? do_fast_syscall_32+0x32d/0xa90 [ 981.733583] [] ? sysenter_flags_fixed+0xd/0x1a [ 981.740964] [] lo_compat_ioctl+0xad/0x140 [ 981.746808] [] ? lo_ioctl+0x1a70/0x1a70 [ 981.752627] [] compat_blkdev_ioctl+0xca0/0x344f [ 981.759019] [] ? cfq_merged_request+0x100/0x100 [ 981.765583] [] ? get_unused_fd_flags+0xd0/0xd0 [ 981.771920] [] ? security_file_ioctl+0x8f/0xc0 [ 981.778245] [] ? cfq_merged_request+0x100/0x100 [ 981.784571] [] compat_SyS_ioctl+0x403/0x2210 [ 981.790707] [] ? compat_SyS_ppoll+0x3d0/0x3d0 [ 981.797046] [] ? putname+0xe0/0x120 [ 981.802321] [] ? do_sys_open+0x237/0x600 [ 981.808177] [] ? filp_open+0x70/0x70 [ 981.813848] [] ? __do_page_fault+0x2b3/0x7f0 [ 981.820045] [] ? do_fast_syscall_32+0xd6/0xa90 [ 981.826447] [] ? compat_SyS_ppoll+0x3d0/0x3d0 [ 981.832658] [] do_fast_syscall_32+0x32d/0xa90 [ 981.839210] [] sysenter_flags_fixed+0xd/0x1a [ 981.847106] 1 lock held by syz-executor.3/2204: [ 981.851780] #0: (loop_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x85/0x1a70 [ 981.861203] Sending NMI to all CPUs: [ 981.865437] NMI backtrace for cpu 0 [ 981.869403] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.174+ #17 [ 981.875826] task: ffffffff82e151c0 task.stack: ffffffff82e00000 [ 981.881922] RIP: 0010:[] [] native_safe_halt+0x2/0x10 [ 981.890585] RSP: 0018:ffffffff82e07db0 EFLAGS: 00000246 [ 981.896072] RAX: 0000000000000007 RBX: ffffffff8319bf68 RCX: 0000000000000000 [ 981.903339] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff82e15a84 [ 981.910797] RBP: ffffffff82e07de0 R08: 0000000000000000 R09: 0000000000000000 [ 981.918642] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 981.926003] R13: ffffffff82e08000 R14: dffffc0000000000 R15: ffffffff82e00000 [ 981.933267] FS: 0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 [ 981.941657] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 981.947691] CR2: 0000000000cdd3e0 CR3: 00000001d843a000 CR4: 00000000001606b0 [ 981.955249] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 981.963928] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 981.971267] Stack: [ 981.973404] ffffffff81020b16 ffffffff82e00000 0000000000000000 ffffffff82e08000 [ 981.981254] dffffc0000000000 ffffffff82e00000 ffffffff82e07df0 ffffffff81022d50 [ 981.989353] ffffffff82e07e08 ffffffff811eb4c8 0000000000000000 ffffffff82e07ed0 [ 981.997015] Call Trace: [ 981.999589] [] ? default_idle+0x56/0x3d0 [ 982.005779] [] arch_cpu_idle+0x10/0x20 [ 982.011304] [] default_idle_call+0x48/0x70 [ 982.017226] [] cpu_startup_entry+0x6d1/0x810 [ 982.023270] [] ? complete+0x18/0x70 [ 982.028629] [] ? call_cpuidle+0xe0/0xe0 [ 982.034260] [] ? schedule+0xab/0x1d0 [ 982.039672] [] rest_init+0x190/0x199 [ 982.045049] [] ? trace_event_define_fields_x86_irq_vector+0x2c/0x2c [ 982.053087] [] start_kernel+0x64a/0x67e [ 982.058769] [] ? thread_stack_cache_init+0xb/0xb [ 982.065190] [] ? early_idt_handler_array+0x120/0x120 [ 982.071926] [] ? early_idt_handler_array+0x120/0x120 [ 982.078716] [] x86_64_start_reservations+0x29/0x2b [ 982.085305] [] x86_64_start_kernel+0x137/0x15a [ 982.091528] 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 [ 982.113884] NMI backtrace for cpu 1 [ 982.117531] CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #17 [ 982.124012] task: ffff8801da6f4740 task.stack: ffff8800001d0000 [ 982.130537] RIP: 0010:[] [] flat_send_IPI_mask+0xf7/0x1b0 [ 982.139333] RSP: 0018:ffff8800001d7c88 EFLAGS: 00000046 [ 982.144786] RAX: 0000000000000000 RBX: 0000000000000c00 RCX: 0000000000000000 [ 982.152112] RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fc300 [ 982.159421] RBP: ffff8800001d7cb8 R08: 0000000000000018 R09: 0000000000000000 [ 982.167548] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246 [ 982.174810] R13: 0000000003000000 R14: ffffffff82e5f2e0 R15: 0000000000000002 [ 982.182292] FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 [ 982.190557] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 982.196484] CR2: 0000000001a62000 CR3: 00000001d2543000 CR4: 00000000001606b0 [ 982.203758] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 982.211091] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 982.218384] Stack: [ 982.220520] 0000000000000001 ffffffff82e5f2e0 ffffffff831a6ac0 fffffbfff0634c34 [ 982.228205] 000000000001b6c0 0000000000000008 ffff8800001d7cd8 ffffffff81092bee [ 982.235892] 0000000000000008 ffffffff82924260 ffff8800001d7d30 ffffffff81ab8252 [ 982.243529] Call Trace: [ 982.246158] [] nmi_raise_cpu_backtrace+0x5e/0x80 [ 982.252561] [] nmi_trigger_all_cpu_backtrace.cold+0xa1/0xae [ 982.262678] [] ? print_lock+0xa8/0xab [ 982.268157] [] ? irq_force_complete_move+0x330/0x330 [ 982.275072] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 982.282077] [] watchdog.cold+0xd3/0xee [ 982.287661] [] ? watchdog+0xac/0xa00 [ 982.293014] [] ? reset_hung_task_detector+0x20/0x20 [ 982.299729] [] kthread+0x273/0x310 [ 982.305054] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.311823] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.318191] [] ? finish_task_switch+0x1e1/0x660 [ 982.324623] [] ? finish_task_switch+0x1b3/0x660 [ 982.330993] [] ? __schedule+0x7af/0x1ee0 [ 982.336829] [] ? __schedule+0x7a3/0x1ee0 [ 982.342631] [] ? __schedule+0x7af/0x1ee0 [ 982.348591] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.355593] [] ret_from_fork+0x55/0x80 [ 982.361228] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.368725] 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 [ 982.388183] Kernel panic - not syncing: hung_task: blocked tasks [ 982.394807] CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #17 [ 982.401280] 0000000000000000 8fc5ccdc5a394ce4 ffff8800001d7c60 ffffffff81aad1a1 [ 982.409614] ffff8801d2f217c0 ffffffff82872120 dffffc0000000000 0000000000000003 [ 982.417753] 00000000003fff9d ffff8800001d7d40 ffffffff813a48c2 0000000041b58ab3 [ 982.425770] Call Trace: [ 982.428346] [] dump_stack+0xc1/0x120 [ 982.433780] [] panic+0x1b9/0x37b [ 982.438796] [] ? add_taint.cold+0x16/0x16 [ 982.444640] [] ? find_next_bit+0x44/0x50 [ 982.450346] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.457608] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.465018] [] watchdog.cold+0xe4/0xee [ 982.470550] [] ? watchdog+0xac/0xa00 [ 982.475992] [] ? reset_hung_task_detector+0x20/0x20 [ 982.482664] [] kthread+0x273/0x310 [ 982.487951] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.494615] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.501047] [] ? finish_task_switch+0x1e1/0x660 [ 982.507360] [] ? finish_task_switch+0x1b3/0x660 [ 982.513794] [] ? __schedule+0x7af/0x1ee0 [ 982.519501] [] ? __schedule+0x7a3/0x1ee0 [ 982.525208] [] ? __schedule+0x7af/0x1ee0 [ 982.530912] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.537570] [] ret_from_fork+0x55/0x80 [ 982.543102] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.550200] Kernel Offset: disabled [ 982.553851] Rebooting in 86400 seconds..