INIT: Id "6" respawning too fast: disabled for 5 minutes 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 "2" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.10.53' (ECDSA) to the list of known hosts. 2019/02/17 05:21:34 parsed 1 programs 2019/02/17 05:21:37 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 "4" 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 [ 981.522972] INFO: task syz-executor.3:2203 blocked for more than 140 seconds. [ 981.530405] Not tainted 4.4.174+ #17 [ 981.534642] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 981.542589] syz-executor.3 D ffff8801d2e1f5f8 24768 2203 1 0x20020004 [ 981.550009] ffff8801d2e1f5f8 ffff8800b48aaf80 2584485272ffb3a9 ffff8800b48aaf80 [ 981.558227] 0000000000000000 ffff8800b48ab800 ffff8801db71f180 ffff8801db71f1a8 [ 981.566509] ffff8801db71e898 ffff8801da6897c0 ffff8800b48aaf80 ffffed003a5c3001 [ 981.575141] Call Trace: [ 981.577869] [] schedule+0x99/0x1d0 [ 981.583248] [] schedule_preempt_disabled+0x13/0x20 [ 981.590168] [] mutex_lock_nested+0x3c2/0xb80 [ 981.596302] [] ? __blkdev_get+0x10c/0xdf0 [ 981.602174] [] ? get_disk+0xe0/0xe0 [ 981.607711] [] ? kobj_lookup+0x273/0x410 [ 981.613425] [] ? mutex_trylock+0x500/0x500 [ 981.619611] [] ? disk_block_events+0xc7/0x140 [ 981.625754] [] __blkdev_get+0x10c/0xdf0 [ 981.631358] [] ? __blkdev_put+0x840/0x840 [ 981.637542] [] ? trace_hardirqs_on+0x10/0x10 [ 981.643794] [] blkdev_get+0x2e8/0x920 [ 981.649229] [] ? bd_may_claim+0xd0/0xd0 [ 981.654856] [] ? bd_acquire+0x8a/0x370 [ 981.660540] [] ? _raw_spin_unlock+0x2d/0x50 [ 981.666533] [] blkdev_open+0x1aa/0x250 [ 981.672081] [] do_dentry_open+0x38f/0xbd0 [ 981.677888] [] ? __inode_permission2+0x9e/0x250 [ 981.684190] [] ? blkdev_get_by_dev+0x80/0x80 [ 981.690220] [] vfs_open+0x10b/0x210 [ 981.695494] [] ? may_open.isra.0+0xe7/0x210 [ 981.701443] [] path_openat+0x136f/0x4470 [ 981.707193] [] ? kasan_kmalloc.part.0+0xc6/0xf0 [ 981.713522] [] ? may_open.isra.0+0x210/0x210 [ 981.719603] [] ? trace_hardirqs_on+0x10/0x10 [ 981.725667] [] do_filp_open+0x1a1/0x270 [ 981.731290] [] ? user_path_mountpoint_at+0x50/0x50 [ 981.737865] [] ? do_dup2+0x3d0/0x3d0 [ 981.743209] [] ? _raw_spin_unlock+0x2d/0x50 [ 981.749152] [] do_sys_open+0x2f8/0x600 [ 981.754711] [] ? mntput+0x66/0x90 [ 981.759788] [] ? filp_open+0x70/0x70 [ 981.765145] [] ? SyS_mkdirat+0x164/0x250 [ 981.770826] [] ? SyS_mknod+0x40/0x40 [ 981.776222] [] compat_SyS_open+0x2a/0x40 [ 981.781913] [] ? compat_SyS_getdents64+0x270/0x270 [ 981.788534] [] do_fast_syscall_32+0x32d/0xa90 [ 981.794674] [] sysenter_flags_fixed+0xd/0x1a [ 981.800703] 1 lock held by syz-executor.3/2203: [ 981.805364] #0: (&bdev->bd_mutex){+.+.+.}, at: [] __blkdev_get+0x10c/0xdf0 [ 981.814699] Sending NMI to all CPUs: [ 981.818811] NMI backtrace for cpu 0 [ 981.822410] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.174+ #17 [ 981.828734] task: ffffffff82e151c0 task.stack: ffffffff82e00000 [ 981.834772] RIP: 0010:[] [] native_safe_halt+0x2/0x10 [ 981.843163] RSP: 0018:ffffffff82e07db0 EFLAGS: 00000246 [ 981.848580] RAX: 0000000000000007 RBX: ffffffff8319bf68 RCX: 0000000000000000 [ 981.855842] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff82e15a84 [ 981.863096] RBP: ffffffff82e07de0 R08: 0000000000000000 R09: 0000000000000000 [ 981.870336] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 981.877618] R13: ffffffff82e08000 R14: dffffc0000000000 R15: ffffffff82e00000 [ 981.884899] FS: 0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 [ 981.893140] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 981.898994] CR2: 00007fa2b964e000 CR3: 00000001d8a7e000 CR4: 00000000001606b0 [ 981.906323] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 981.913582] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 981.920822] Stack: [ 981.922966] ffffffff81020b16 ffffffff82e00000 0000000000000000 ffffffff82e08000 [ 981.930465] dffffc0000000000 ffffffff82e00000 ffffffff82e07df0 ffffffff81022d50 [ 981.938190] ffffffff82e07e08 ffffffff811eb4c8 0000000000000000 ffffffff82e07ed0 [ 981.945709] Call Trace: [ 981.948264] [] ? default_idle+0x56/0x3d0 [ 981.953968] [] arch_cpu_idle+0x10/0x20 [ 981.959472] [] default_idle_call+0x48/0x70 [ 981.965345] [] cpu_startup_entry+0x6d1/0x810 [ 981.971371] [] ? complete+0x18/0x70 [ 981.976673] [] ? call_cpuidle+0xe0/0xe0 [ 981.982272] [] ? schedule+0xab/0x1d0 [ 981.987629] [] rest_init+0x190/0x199 [ 981.992979] [] ? trace_event_define_fields_x86_irq_vector+0x2c/0x2c [ 982.001011] [] start_kernel+0x64a/0x67e [ 982.006624] [] ? thread_stack_cache_init+0xb/0xb [ 982.013005] [] ? early_idt_handler_array+0x120/0x120 [ 982.019726] [] ? early_idt_handler_array+0x120/0x120 [ 982.026568] [] x86_64_start_reservations+0x29/0x2b [ 982.033131] [] x86_64_start_kernel+0x137/0x15a [ 982.039329] 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 [ 982.058363] NMI backtrace for cpu 1 [ 982.061967] CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #17 [ 982.068468] task: ffff8801da6f4740 task.stack: ffff8800001d0000 [ 982.074530] RIP: 0010:[] [] flat_send_IPI_mask+0xf7/0x1b0 [ 982.083269] RSP: 0018:ffff8800001d7c88 EFLAGS: 00000046 [ 982.088697] RAX: 0000000000000000 RBX: 0000000000000c00 RCX: 0000000000000000 [ 982.095974] RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fc300 [ 982.103226] RBP: ffff8800001d7cb8 R08: 0000000000000018 R09: 0000000000000000 [ 982.110557] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246 [ 982.117853] R13: 0000000003000000 R14: ffffffff82e5f2e0 R15: 0000000000000002 [ 982.125121] FS: 0000000000000000(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000 [ 982.133338] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 982.139194] CR2: 00000000016ab000 CR3: 00000000b6bd0000 CR4: 00000000001606b0 [ 982.146458] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 982.153726] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 982.160968] Stack: [ 982.163157] 0000000000000001 ffffffff82e5f2e0 ffffffff831a6ac0 fffffbfff0634c34 [ 982.170670] 000000000001b6c0 0000000000000008 ffff8800001d7cd8 ffffffff81092bee [ 982.178213] 0000000000000008 ffffffff82924260 ffff8800001d7d30 ffffffff81ab8252 [ 982.185741] Call Trace: [ 982.188299] [] nmi_raise_cpu_backtrace+0x5e/0x80 [ 982.194700] [] nmi_trigger_all_cpu_backtrace.cold+0xa1/0xae [ 982.202029] [] ? print_lock+0xa8/0xab [ 982.207470] [] ? irq_force_complete_move+0x330/0x330 [ 982.214201] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 982.221187] [] watchdog.cold+0xd3/0xee [ 982.226724] [] ? watchdog+0xac/0xa00 [ 982.232057] [] ? reset_hung_task_detector+0x20/0x20 [ 982.238713] [] kthread+0x273/0x310 [ 982.243935] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.250578] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.256893] [] ? finish_task_switch+0x1e1/0x660 [ 982.263201] [] ? finish_task_switch+0x1b3/0x660 [ 982.269486] [] ? __schedule+0x7af/0x1ee0 [ 982.275198] [] ? __schedule+0x7a3/0x1ee0 [ 982.280889] [] ? __schedule+0x7af/0x1ee0 [ 982.286588] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.293227] [] ret_from_fork+0x55/0x80 [ 982.298729] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.305390] 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 [ 982.324680] Kernel panic - not syncing: hung_task: blocked tasks [ 982.330798] CPU: 1 PID: 20 Comm: khungtaskd Not tainted 4.4.174+ #17 [ 982.337258] 0000000000000000 59b101184576f724 ffff8800001d7c60 ffffffff81aad1a1 [ 982.345249] ffff8800b48aaf80 ffffffff82872120 dffffc0000000000 0000000000000003 [ 982.353222] 00000000003fff9b ffff8800001d7d40 ffffffff813a48c2 0000000041b58ab3 [ 982.361336] Call Trace: [ 982.363899] [] dump_stack+0xc1/0x120 [ 982.369274] [] panic+0x1b9/0x37b [ 982.374264] [] ? add_taint.cold+0x16/0x16 [ 982.380065] [] ? find_next_bit+0x44/0x50 [ 982.385751] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.393000] [] ? nmi_trigger_all_cpu_backtrace+0x3c6/0x490 [ 982.400250] [] watchdog.cold+0xe4/0xee [ 982.405767] [] ? watchdog+0xac/0xa00 [ 982.411108] [] ? reset_hung_task_detector+0x20/0x20 [ 982.418105] [] kthread+0x273/0x310 [ 982.423264] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.429901] [] ? _raw_spin_unlock_irq+0x39/0x60 [ 982.436194] [] ? finish_task_switch+0x1e1/0x660 [ 982.442513] [] ? finish_task_switch+0x1b3/0x660 [ 982.448807] [] ? __schedule+0x7af/0x1ee0 [ 982.454485] [] ? __schedule+0x7a3/0x1ee0 [ 982.460165] [] ? __schedule+0x7af/0x1ee0 [ 982.465859] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.472515] [] ret_from_fork+0x55/0x80 [ 982.478022] [] ? kthread_create_on_node+0x4c0/0x4c0 [ 982.485192] Kernel Offset: disabled [ 982.488814] Rebooting in 86400 seconds..