INIT: Id "2" respawning too fast: disabled for 5 minutes 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 Warning: Permanently added '10.128.0.201' (ECDSA) to the list of known hosts. 2019/02/14 00:21:04 parsed 1 programs 2019/02/14 00:21:08 executed programs: 0 INIT: Id "1" respawning too fast: disabled for 5 minutes 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 "2" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes [ 981.672540] INFO: task syz-executor.0:2217 blocked for more than 140 seconds. [ 981.679848] Not tainted 4.4.174+ #17 [ 981.684125] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 981.692071] syz-executor.0 D ffff8801d265f9c8 25472 2217 2214 0x20020000 [ 981.699548] ffff8801d265f9c8 ffff8801d200df00 d753a55c81f9a62f ffff8801d200df00 [ 981.707585] 0000000000000000 ffff8801d200e700 ffff8801db71f180 ffff8801db71f1a8 [ 981.715637] ffff8801db71e898 ffff8801d2744740 ffff8801d200df00 ffffed003a4cb001 [ 981.723793] Call Trace: [ 981.726374] [] schedule+0x99/0x1d0 [ 981.731542] [] schedule_preempt_disabled+0x13/0x20 [ 981.738125] [] mutex_lock_nested+0x3c2/0xb80 [ 981.744219] [] ? lo_ioctl+0x85/0x1a70 [ 981.749653] [] ? quarantine_put+0xda/0x180 [ 981.755544] [] ? mutex_trylock+0x500/0x500 [ 981.761416] [] ? trace_hardirqs_on+0xd/0x10 [ 981.767498] [] lo_ioctl+0x85/0x1a70 [ 981.773017] [] ? compat_SyS_open+0x2a/0x40 [ 981.778903] [] ? do_fast_syscall_32+0x32d/0xa90 [ 981.785241] [] ? sysenter_flags_fixed+0xd/0x1a [ 981.791456] [] lo_compat_ioctl+0xad/0x140 [ 981.797257] [] ? lo_ioctl+0x1a70/0x1a70 [ 981.802887] [] compat_blkdev_ioctl+0xca0/0x344f [ 981.809185] [] ? cfq_merged_request+0x100/0x100 [ 981.815507] [] ? get_unused_fd_flags+0xd0/0xd0 [ 981.821726] [] ? security_file_ioctl+0x8f/0xc0 [ 981.827978] [] ? cfq_merged_request+0x100/0x100 [ 981.834301] [] compat_SyS_ioctl+0x403/0x2210 [ 981.840339] [] ? compat_SyS_ppoll+0x3d0/0x3d0 [ 981.846526] [] ? putname+0xe0/0x120 [ 981.851849] [] ? do_sys_open+0x237/0x600 [ 981.857617] [] ? filp_open+0x70/0x70 [ 981.862985] [] ? SyS_mkdirat+0x164/0x250 [ 981.868671] [] ? SyS_mknod+0x40/0x40 [ 981.874062] [] ? do_fast_syscall_32+0xd6/0xa90 [ 981.880388] [] ? compat_SyS_ppoll+0x3d0/0x3d0 [ 981.886548] [] do_fast_syscall_32+0x32d/0xa90 [ 981.892702] [] sysenter_flags_fixed+0xd/0x1a [ 981.898739] 1 lock held by syz-executor.0/2217: [ 981.903411] #0: (loop_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x85/0x1a70 [ 981.912763] Sending NMI to all CPUs: [ 981.917659] NMI backtrace for cpu 0 [ 981.921271] CPU: 0 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #17 [ 981.927814] task: ffff8801da6f2f80 task.stack: ffff8801d9ed8000 [ 981.933876] RIP: 0010:[] [] flat_send_IPI_mask+0xf7/0x1b0 [ 981.942629] RSP: 0018:ffff8801d9edfc88 EFLAGS: 00000046 [ 981.948059] RAX: 0000000000000000 RBX: 0000000000000c00 RCX: 0000000000000000 [ 981.955351] RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fc300 [ 981.962620] RBP: ffff8801d9edfcb8 R08: 0000000000000018 R09: 0000000000000000 [ 981.969876] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246 [ 981.977168] R13: 0000000003000000 R14: ffffffff82e5f2e0 R15: 0000000000000002 [ 981.984429] FS: 0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 [ 981.992656] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 981.998523] CR2: 00000000007df000 CR3: 00000001cfd76000 CR4: 00000000001606b0 [ 982.005819] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 982.013114] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 982.020366] Stack: [ 982.022528] 0000000000000001 ffffffff82e5f2e0 ffffffff831a6ac0 fffffbfff0634c34 [ 982.030038] 000000000001b6c0 0000000000000008 ffff8801d9edfcd8 ffffffff81092bee [ 982.037586] 0000000000000008 ffffffff82924260 ffff8801d9edfd30 ffffffff81ab8252 [ 982.045124] Call Trace: [ 982.047823] [] nmi_raise_cpu_backtrace+0x5e/0x80 [ 982.054246] [] nmi_trigger_all_cpu_backtrace.cold+0xa1/0xae [ 982.061587] [] ? print_lock+0xa8/0xab [ 982.067051] [] ? irq_force_complete_move+0x330/0x330 [ 982.073792] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 982.080892] [] watchdog.cold+0xd3/0xee [ 982.086449] [] ? watchdog+0xac/0xa00 [ 982.091790] [] ? reset_hung_task_detector+0x20/0x20 [ 982.098477] [] kthread+0x273/0x310 [ 982.103781] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.110467] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.116815] [] ? finish_task_switch+0x1e1/0x660 [ 982.123126] [] ? finish_task_switch+0x1b3/0x660 [ 982.129418] [] ? __schedule+0x7af/0x1ee0 [ 982.135142] [] ? __schedule+0x7a3/0x1ee0 [ 982.140829] [] ? __schedule+0x7af/0x1ee0 [ 982.146564] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.153287] [] ret_from_fork+0x55/0x80 [ 982.158805] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.165481] 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 [ 982.184482] NMI backtrace for cpu 1 [ 982.188088] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.174+ #17 [ 982.194555] task: ffff8801da6897c0 task.stack: ffff8801da698000 [ 982.200604] RIP: 0010:[] [] native_safe_halt+0x2/0x10 [ 982.209126] RSP: 0018:ffff8801da69fd88 EFLAGS: 00000246 [ 982.214583] RAX: 0000000000000007 RBX: ffffffff8319bf68 RCX: 0000000000000000 [ 982.221892] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801da68a084 [ 982.229203] RBP: ffff8801da69fdb8 R08: 0000000000000000 R09: 0000000000000000 [ 982.236481] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 982.243767] R13: ffff8801da6a0000 R14: dffffc0000000000 R15: ffff8801da698000 [ 982.251017] FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 [ 982.259275] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 982.265150] CR2: 00000000023d3000 CR3: 00000001cfd76000 CR4: 00000000001606b0 [ 982.272483] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 982.279740] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 982.287022] Stack: [ 982.289191] ffffffff81020b16 ffff8801da698000 0000000000000000 ffff8801da6a0000 [ 982.296743] dffffc0000000000 ffff8801da698000 ffff8801da69fdc8 ffffffff81022d50 [ 982.304273] ffff8801da69fde0 ffffffff811eb4c8 0000000000000000 ffff8801da69fea8 [ 982.311788] Call Trace: [ 982.314387] [] ? default_idle+0x56/0x3d0 [ 982.320075] [] arch_cpu_idle+0x10/0x20 [ 982.325629] [] default_idle_call+0x48/0x70 [ 982.331492] [] cpu_startup_entry+0x6d1/0x810 [ 982.337641] [] ? call_cpuidle+0xe0/0xe0 [ 982.343262] [] start_secondary+0x31d/0x410 [ 982.349123] [] ? set_cpu_sibling_map+0x10d0/0x10d0 [ 982.355712] 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 [ 982.374810] Kernel panic - not syncing: hung_task: blocked tasks [ 982.380938] CPU: 0 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #17 [ 982.387667] 0000000000000000 e7cb69963180e9d1 ffff8801d9edfc60 ffffffff81aad1a1 [ 982.395666] ffff8801d200df00 ffffffff82872120 dffffc0000000000 0000000000000003 [ 982.403662] 00000000003fff9e ffff8801d9edfd40 ffffffff813a48c2 0000000041b58ab3 [ 982.411771] Call Trace: [ 982.414344] [] dump_stack+0xc1/0x120 [ 982.419799] [] panic+0x1b9/0x37b [ 982.424792] [] ? add_taint.cold+0x16/0x16 [ 982.430565] [] ? nmi_trigger_all_cpu_backtrace+0x3e1/0x490 [ 982.437819] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.445065] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.452315] [] watchdog.cold+0xe4/0xee [ 982.457827] [] ? watchdog+0xac/0xa00 [ 982.463165] [] ? reset_hung_task_detector+0x20/0x20 [ 982.469817] [] kthread+0x273/0x310 [ 982.474990] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.481718] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.488015] [] ? finish_task_switch+0x1e1/0x660 [ 982.494306] [] ? finish_task_switch+0x1b3/0x660 [ 982.500603] [] ? __schedule+0x7af/0x1ee0 [ 982.506286] [] ? __schedule+0x7a3/0x1ee0 [ 982.512024] [] ? __schedule+0x7af/0x1ee0 [ 982.517723] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.524367] [] ret_from_fork+0x55/0x80 [ 982.529945] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.536935] Kernel Offset: disabled [ 982.540574] Rebooting in 86400 seconds..