INIT: Id "6" 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 "1" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.15.193' (ECDSA) to the list of known hosts. 2018/07/13 17:14:21 parsed 1 programs 2018/07/13 17:14:24 executed programs: 0 [ 651.175403] IPVS: Creating netns size=2552 id=1 [ 842.133605] INFO: task syz-executor0:3995 blocked for more than 140 seconds. [ 842.140841] Not tainted 4.4.140-ged9bdc8 #4 [ 842.145720] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 842.153761] syz-executor0 D ffff8801d68df9e0 28768 3995 3970 0x20020004 [ 842.161190] ffff8801d68df9e0 0000000000000246 0000000000000292 0000000041b58ab3 [ 842.169220] ffffffff841e1c00 ffff8801db31fdb8 ffff8801db31fde0 ffff8801db31f4d8 [ 842.177296] ffff8801db31f4c0 ffff8801d9a41800 ffff8801d71eb000 0000000000000000 [ 842.185381] Call Trace: [ 842.188133] [] schedule+0x7a/0x1b0 [ 842.193413] [] blk_mq_freeze_queue_wait+0x120/0x240 [ 842.200138] [] ? blk_mq_tags_cpumask+0x20/0x20 [ 842.206445] [] ? percpu_ref_kill_and_confirm+0xff/0x300 [ 842.213556] [] ? prepare_to_wait_event+0x430/0x430 [ 842.220136] [] blk_mq_freeze_queue+0x1d/0x20 [ 842.226292] [] lo_ioctl+0x722/0x1ad0 [ 842.231636] [] lo_compat_ioctl+0xb2/0x140 [ 842.237454] [] ? lo_ioctl+0x1ad0/0x1ad0 [ 842.243085] [] compat_blkdev_ioctl+0x395/0x3a10 [ 842.249422] [] ? cfq_dispatch_requests+0x2fc0/0x2fc0 [ 842.256266] [] ? security_file_ioctl+0x8f/0xc0 [ 842.262476] [] ? cfq_dispatch_requests+0x2fc0/0x2fc0 [ 842.269328] [] compat_SyS_ioctl+0x484/0x2270 [ 842.275419] [] ? compat_SyS_ppoll+0x420/0x420 [ 842.281598] [] ? handle_mm_fault+0xbf7/0x30b0 [ 842.287786] [] ? debug_check_no_obj_freed+0x2ec/0x940 [ 842.294689] [] ? compat_SyS_futex+0x1e1/0x2f0 [ 842.300815] [] ? compat_SyS_get_robust_list+0x310/0x310 [ 842.307896] [] ? compat_writev+0x150/0x150 [ 842.313820] [] ? vmacache_update+0xfe/0x130 [ 842.319817] [] ? do_fast_syscall_32+0xdb/0x8b0 [ 842.326069] [] ? compat_SyS_ppoll+0x420/0x420 [ 842.332196] [] do_fast_syscall_32+0x326/0x8b0 [ 842.338371] [] sysenter_flags_fixed+0xd/0x17 [ 842.344504] 1 lock held by syz-executor0/3995: [ 842.349093] #0: (&lo->lo_ctl_mutex/1){+.+.+.}, at: [] lo_ioctl+0x8b/0x1ad0 [ 842.358603] Sending NMI to all CPUs: [ 842.363630] NMI backtrace for cpu 0 [ 842.367242] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.140-ged9bdc8 #4 [ 842.374189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 842.383543] task: ffffffff84417840 task.stack: ffffffff84400000 [ 842.389575] RIP: 0010:[] [] native_safe_halt+0x6/0x10 [ 842.397993] RSP: 0018:ffffffff84407dc8 EFLAGS: 00000246 [ 842.403443] RAX: 0000000000000007 RBX: ffffffff84a06128 RCX: 0000000000000000 [ 842.410691] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff8441811c [ 842.417989] RBP: ffffffff84407dc8 R08: 0000000000000000 R09: 0000000000000000 [ 842.425266] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 842.432511] R13: 0000000000000000 R14: fffffbfff07488ec R15: ffffffff84a06128 [ 842.439804] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 842.448045] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 842.453928] CR2: 0000000000bf8b10 CR3: 00000001d098d000 CR4: 00000000001606f0 [ 842.461177] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 842.468473] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 842.475756] Stack: [ 842.477878] ffffffff84407e00 ffffffff81025cf5 ffffffff84408000 0000000000000000 [ 842.485433] 0000000000000000 fffffbfff07488ec ffffffff84a06128 ffffffff84407e10 [ 842.492944] ffffffff81027240 ffffffff84407e28 ffffffff8121bc47 dffffc0000000000 [ 842.500492] Call Trace: [ 842.503059] [] default_idle+0x55/0x3c0 [ 842.508601] [] arch_cpu_idle+0x10/0x20 [ 842.514129] [] default_idle_call+0x57/0x70 [ 842.519988] [] cpu_startup_entry+0x6af/0x780 [ 842.526060] [] ? call_cpuidle+0xe0/0xe0 [ 842.531671] [] rest_init+0x188/0x18e [ 842.537045] [] start_kernel+0x6b3/0x6e7 [ 842.542670] [] ? thread_stack_cache_init+0xb/0xb [ 842.549125] [] ? early_idt_handler_array+0x120/0x120 [ 842.555892] [] ? early_idt_handler_array+0x120/0x120 [ 842.562619] [] x86_64_start_reservations+0x29/0x2b [ 842.569210] [] x86_64_start_kernel+0x13f/0x162 [ 842.575453] Code: 00 00 00 00 00 55 48 89 e5 fa 5d c3 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 fb 5d c3 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 fb f4 <5d> c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 f4 5d c3 66 0f 1f 84 [ 842.575455] NMI backtrace for cpu 1 [ 842.575457] CPU: 1 PID: 492 Comm: khungtaskd Not tainted 4.4.140-ged9bdc8 #4 [ 842.575460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 842.575461] task: ffff8800bb154800 task.stack: ffff8801d93f8000 [ 842.575463] RIP: 0010:[] [] flat_send_IPI_mask+0xf6/0x1a0 [ 842.575465] RSP: 0018:ffff8801d93ffcc8 EFLAGS: 00000046 [ 842.575467] RAX: 0000000003000000 RBX: 0000000000000c00 RCX: 0000000000000000 [ 842.575481] RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fb300 [ 842.575483] RBP: ffff8801d93ffcf0 R08: 0000000000000001 R09: 0000000000000000 [ 842.575484] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246 [ 842.575486] R13: 0000000000000003 R14: 0000000000000002 R15: ffffffff8446f6e0 [ 842.575488] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 842.575489] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 842.575491] CR2: 00007fc4e595b000 CR3: 00000001d098d000 CR4: 00000000001606f0 [ 842.575493] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 842.575495] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 842.575496] Stack: [ 842.575498] ffffffff8446f6e0 ffffffff84a19060 0000000000000007 fffffbfff0942cbc [ 842.575500] 0000000000000040 ffff8801d93ffd10 ffffffff810b5f51 ffffffff83c0b760 [ 842.575501] 0000000000000003 ffff8801d93ffd68 ffffffff81e19103 ffffffff8140ddaf [ 842.575502] Call Trace: [ 842.575504] [] nmi_raise_cpu_backtrace+0x61/0x80 [ 842.575506] [] nmi_trigger_all_cpu_backtrace.cold.4+0x70/0xad [ 842.575507] [] ? print_lock+0x9f/0xa2 [ 842.575509] [] ? irq_force_complete_move+0x350/0x350 [ 842.575511] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 842.575512] [] watchdog.cold.1+0xd3/0xee [ 842.575514] [] ? watchdog+0xb0/0x9a0 [ 842.575515] [] kthread+0x268/0x300 [ 842.575517] [] ? reset_hung_task_detector+0x20/0x20 [ 842.575518] [] ? kthread_create_on_node+0x400/0x400 [ 842.575520] [] ? kthread_create_on_node+0x400/0x400 [ 842.575522] [] ret_from_fork+0x55/0x80 [ 842.575523] [] ? kthread_create_on_node+0x400/0x400 [ 842.575527] Code: b3 5f ff f6 c4 10 75 e2 44 89 e8 c1 e0 18 89 04 25 10 b3 5f ff 44 89 f2 09 da 80 cf 04 41 83 fe 02 0f 44 d3 89 14 25 00 b3 5f ff <41> f7 c4 00 02 00 00 75 1a 4c 89 e7 57 9d 0f 1f 44 00 00 e8 d2 [ 842.575732] Kernel panic - not syncing: hung_task: blocked tasks [ 842.575738] CPU: 1 PID: 492 Comm: khungtaskd Not tainted 4.4.140-ged9bdc8 #4 [ 842.575741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 842.575748] 0000000000000000 b975511926466036 ffff8801d93ffcb8 ffffffff81e0e08d [ 842.575753] ffffffff83a836e0 0000000000000002 7fffffffffffffff 00000000003fff84 [ 842.575757] dffffc0000000000 ffff8801d93ffd78 ffffffff8140a1c4 0000000041b58ab3 [ 842.575759] Call Trace: [ 842.575770] [] dump_stack+0xc1/0x124 [ 842.575777] [] panic+0x19e/0x38d [ 842.575781] [] ? add_taint.cold.4+0x16/0x16 [ 842.575786] [] ? nmi_trigger_all_cpu_backtrace+0x3e6/0x488 [ 842.575790] [] ? nmi_trigger_all_cpu_backtrace+0x395/0x488 [ 842.575795] [] ? nmi_trigger_all_cpu_backtrace+0x395/0x488 [ 842.575799] [] watchdog.cold.1+0xe4/0xee [ 842.575806] [] ? watchdog+0xb0/0x9a0 [ 842.575812] [] kthread+0x268/0x300 [ 842.575816] [] ? reset_hung_task_detector+0x20/0x20 [ 842.575820] [] ? kthread_create_on_node+0x400/0x400 [ 842.575824] [] ? kthread_create_on_node+0x400/0x400 [ 842.575831] [] ret_from_fork+0x55/0x80 [ 842.575835] [] ? kthread_create_on_node+0x400/0x400 [ 842.594907] Dumping ftrace buffer: [ 842.594948] (ftrace buffer empty) [ 842.594951] Kernel Offset: disabled [ 842.979166] Rebooting in 86400 seconds..