INIT: Id "1" 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 "4" respawning too fast: disabled for 5 minutes
Warning: Permanently added '10.128.15.193' (ECDSA) to the list of known hosts.
executing program
[  319.490738] IPVS: Creating netns size=2552 id=1
[  482.204335] INFO: task syzkaller884312:3843 blocked for more than 120 seconds.
[  482.211749]       Not tainted 4.4.115-gaa856bd #6
[  482.216637] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  482.224791] syzkaller884312 D ffff8801d0c2f3a8 27776  3843   3839 0x00000002
[  482.232262]  ffff8801d0c2f3a8 0000000000000000 0000000000000000 0000000000000000
[  482.240269]  0000000000000001 ffff8801d0c2f300 ffff8801db31fdb8 ffff8801db31fde0
[  482.248318]  ffff8801db31f4d8 ffff8801d9b49800 ffff8801d8431800 0000000000000000
[  482.256349] Call Trace:
[  482.259018]  [<ffffffff837662da>] schedule+0x7a/0x1b0
[  482.264181]  [<ffffffff83766ad3>] schedule_preempt_disabled+0x13/0x20
[  482.270776]  [<ffffffff8376b096>] mutex_lock_nested+0x306/0x850
[  482.276863]  [<ffffffff82d2ad8d>] ? snd_seq_do_ioctl+0x15d/0x1b0
[  482.282980]  [<ffffffff8376ad90>] ? __ww_mutex_lock+0x14f0/0x14f0
[  482.289232]  [<ffffffff81132f8a>] ? do_exit+0x82a/0x2a10
[  482.294682]  [<ffffffff81006535>] ? syscall_return_slowpath+0x1b5/0x1f0
[  482.301408]  [<ffffffff837745a9>] ? int_ret_from_sys_call+0x25/0xa3
[  482.307815]  [<ffffffff82d2ad8d>] snd_seq_do_ioctl+0x15d/0x1b0
[  482.313764]  [<ffffffff82d2aeb7>] snd_seq_kernel_client_ctl+0xd7/0x150
[  482.320466]  [<ffffffff82d54150>] snd_seq_oss_writeq_clear+0xe0/0x140
[  482.327050]  [<ffffffff82d54070>] ? snd_seq_oss_writeq_wakeup+0xc0/0xc0
[  482.333797]  [<ffffffff814fdb88>] ? kasan_slab_free+0x88/0xc0
[  482.339730]  [<ffffffff814fa60c>] ? kfree+0xfc/0x300
[  482.344839]  [<ffffffff82d42d10>] ? create_port+0x230/0x230
[  482.350524]  [<ffffffff82d541cf>] snd_seq_oss_writeq_delete+0x1f/0x30
[  482.357113]  [<ffffffff82d42d71>] free_devinfo+0x61/0xb0
[  482.362538]  [<ffffffff82d3d015>] port_delete+0xd5/0x110
[  482.367993]  [<ffffffff82d3d913>] snd_seq_delete_port+0x1c3/0x200
[  482.374203]  [<ffffffff82d29142>] snd_seq_ioctl_delete_port+0xf2/0x1d0
[  482.380891]  [<ffffffff82d29050>] ? snd_seq_ioctl_set_port_info+0x190/0x190
[  482.388007]  [<ffffffff82d2adb2>] snd_seq_do_ioctl+0x182/0x1b0
[  482.393955]  [<ffffffff82d2aeb7>] snd_seq_kernel_client_ctl+0xd7/0x150
[  482.400634]  [<ffffffff82d42730>] ? snd_midi_event_new+0x200/0x200
[  482.406957]  [<ffffffff82d3bd5f>] snd_seq_event_port_detach+0xaf/0x100
[  482.413599]  [<ffffffff82d3bcb0>] ? snd_seq_event_port_attach+0x190/0x190
[  482.420540]  [<ffffffff8376ad90>] ? __ww_mutex_lock+0x14f0/0x14f0
[  482.426826]  [<ffffffff815e982d>] ? fsnotify+0x5ad/0xee0
[  482.432250]  [<ffffffff82d42e33>] delete_port+0x73/0xb0
[  482.437612]  [<ffffffff82d43fe4>] snd_seq_oss_release+0xe4/0x130
[  482.443735]  [<ffffffff82d42782>] odev_release+0x52/0x70
[  482.449218]  [<ffffffff815236a3>] __fput+0x233/0x6d0
[  482.454318]  [<ffffffff81523bc5>] ____fput+0x15/0x20
[  482.459417]  [<ffffffff8118b9e4>] task_work_run+0x104/0x180
[  482.465141]  [<ffffffff81132f8a>] do_exit+0x82a/0x2a10
[  482.470392]  [<ffffffff81132760>] ? release_task+0x1240/0x1240
[  482.476398]  [<ffffffff812dac50>] ? hash_futex+0x210/0x210
[  482.482015]  [<ffffffff81151cf3>] ? __dequeue_signal+0xa3/0x550
[  482.488091]  [<ffffffff81150cd9>] ? recalc_sigpending_tsk+0x139/0x180
[  482.494660]  [<ffffffff81150d96>] ? recalc_sigpending+0x76/0xa0
[  482.500692]  [<ffffffff81152264>] ? dequeue_signal+0xc4/0x4b0
[  482.506579]  [<ffffffff811521a0>] ? __dequeue_signal+0x550/0x550
[  482.512701]  [<ffffffff81139428>] do_group_exit+0x108/0x320
[  482.518429]  [<ffffffff8115c882>] get_signal+0x4f2/0x1550
[  482.523953]  [<ffffffff8100e7fb>] do_signal+0x8b/0x1d40
[  482.529361]  [<ffffffff81236ded>] ? trace_hardirqs_on+0xd/0x10
[  482.535324]  [<ffffffff8100e770>] ? setup_sigcontext+0x780/0x780
[  482.541442]  [<ffffffff814fdb88>] ? kasan_slab_free+0x88/0xc0
[  482.547341]  [<ffffffff814fa387>] ? kmem_cache_free+0x197/0x320
[  482.553376]  [<ffffffff812e2000>] ? SyS_futex+0x210/0x2c0
[  482.558916]  [<ffffffff812e1df0>] ? do_futex+0x15d0/0x15d0
[  482.564535]  [<ffffffff810035fa>] exit_to_usermode_loop+0x11a/0x160
[  482.570913]  [<ffffffff81006535>] syscall_return_slowpath+0x1b5/0x1f0
[  482.577501]  [<ffffffff837745a9>] int_ret_from_sys_call+0x25/0xa3
[  482.583750] INFO: lockdep is turned off.
[  482.587866] Sending NMI to all CPUs:
[  482.592817] NMI backtrace for cpu 0
[  482.596467] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.115-gaa856bd #6
[  482.603365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  482.612722] task: ffffffff84217840 task.stack: ffffffff84200000
[  482.618765] RIP: 0010:[<ffffffff810d0536>]  [<ffffffff810d0536>] native_safe_halt+0x6/0x10
[  482.627165] RSP: 0018:ffffffff84207dc0  EFLAGS: 00000246
[  482.632584] RAX: 0000000000000003 RBX: ffffffff847dd8c8 RCX: ffffffff81d63b5b
[  482.639861] RDX: 0000000000000004 RSI: ffffffff839fe320 RDI: ffffffff84418180
[  482.647124] RBP: ffffffff84207dc0 R08: 0000000000000000 R09: 0000000000000000
[  482.654385] R10: 0000000000000000 R11: 1ffffffff0840f86 R12: 0000000000000000
[  482.661628] R13: fffffbfff070887c R14: ffffffff847ebc38 R15: 0000000000000000
[  482.668909] FS:  0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[  482.677129] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  482.682982] CR2: 00007f892e635000 CR3: 00000001d3062000 CR4: 0000000000160670
[  482.690262] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  482.697523] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  482.704794] Stack:
[  482.706914]  ffffffff84207df8 ffffffff81027ed5 ffffffff84208000 ffffffff847dd8c8
[  482.714444]  fffffbfff070887c ffffffff847ebc38 0000000000000000 ffffffff84207e08
[  482.721949]  ffffffff8102945a ffffffff84207e20 ffffffff81221468 dffffc0000000000
[  482.729487] Call Trace:
[  482.732040]  [<ffffffff81027ed5>] default_idle+0x55/0x3c0
[  482.737583]  [<ffffffff8102945a>] arch_cpu_idle+0xa/0x10
[  482.743008]  [<ffffffff81221468>] default_idle_call+0x48/0x70
[  482.748891]  [<ffffffff81221b6d>] cpu_startup_entry+0x5fd/0x8f0
[  482.754937]  [<ffffffff837739ea>] ? _raw_spin_unlock_irqrestore+0x5a/0x70
[  482.761834]  [<ffffffff81221570>] ? call_cpuidle+0xe0/0xe0
[  482.767463]  [<ffffffff83761369>] rest_init+0x189/0x190
[  482.772798]  [<ffffffff84821811>] start_kernel+0x6b9/0x6ee
[  482.778418]  [<ffffffff84821158>] ? thread_stack_cache_init+0xb/0xb
[  482.784904]  [<ffffffff84820120>] ? early_idt_handler_array+0x120/0x120
[  482.791632]  [<ffffffff84820120>] ? early_idt_handler_array+0x120/0x120
[  482.798393]  [<ffffffff84820312>] x86_64_start_reservations+0x2a/0x2c
[  482.804963]  [<ffffffff84820454>] x86_64_start_kernel+0x140/0x163
[  482.811176] 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 
[  482.830168] NMI backtrace for cpu 1
[  482.833764] CPU: 1 PID: 486 Comm: khungtaskd Not tainted 4.4.115-gaa856bd #6
[  482.840962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  482.850309] task: ffff8801d8ddc800 task.stack: ffff8800bb2a8000
[  482.856368] RIP: 0010:[<ffffffff810c3ec7>]  [<ffffffff810c3ec7>] flat_send_IPI_mask+0xf7/0x1a0
[  482.865109] RSP: 0018:ffff8800bb2afcb8  EFLAGS: 00000046
[  482.870529] RAX: 0000000003000000 RBX: 0000000000000c00 RCX: ffffffff8126a292
[  482.877791] RDX: 0000000000000c00 RSI: 0000000000000002 RDI: ffffffffff5fb300
[  482.885056] RBP: ffff8800bb2afce0 R08: 0000000000000001 R09: 0000000000000000
[  482.892298] R10: 0000000000000000 R11: fffffbfff0ad7e2c R12: 0000000000000246
[  482.899578] R13: 0000000000000003 R14: ffffffff8426f3a0 R15: 0000000000000002
[  482.906845] FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[  482.915076] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  482.920929] CR2: 00007f7de9113000 CR3: 00000001d3062000 CR4: 0000000000160670
[  482.928205] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  482.935471] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  482.942713] Stack:
[  482.944861]  ffffffff8426f3a0 ffffffff847ef7c0 fffffbfff08fd9ac dffffc0000000000
[  482.952366]  ffff8801db31bca0 ffff8800bb2afd00 ffffffff810b99fb ffffffff839f61c0
[  482.959899]  0000000000000003 ffff8800bb2afd60 ffffffff81d0ed14 ffffffff8386d4c0
[  482.967424] Call Trace:
[  482.969978]  [<ffffffff810b99fb>] nmi_raise_cpu_backtrace+0x5b/0x70
[  482.976372]  [<ffffffff81d0ed14>] nmi_trigger_all_cpu_backtrace+0x4a4/0x550
[  482.983444]  [<ffffffff810b99a0>] ? irq_force_complete_move+0x3b0/0x3b0
[  482.990207]  [<ffffffff810b9a94>] arch_trigger_all_cpu_backtrace+0x14/0x20
[  482.997207]  [<ffffffff81368cca>] watchdog+0x6fa/0xae0
[  483.002453]  [<ffffffff81368693>] ? watchdog+0xc3/0xae0
[  483.007818]  [<ffffffff811907e8>] kthread+0x268/0x300
[  483.012975]  [<ffffffff813685d0>] ? reset_hung_task_detector+0x20/0x20
[  483.019637]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  483.026292]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  483.032926]  [<ffffffff83774845>] ret_from_fork+0x55/0x80
[  483.038466]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  483.045121] Code: b3 5f ff f6 c4 10 75 e1 44 89 e8 c1 e0 18 89 04 25 10 b3 5f ff 44 89 fa 09 da 80 cf 04 41 83 ff 02 0f 44 d3 89 14 25 00 b3 5f ff <41> f7 c4 00 02 00 00 74 1a e8 0b 2f 17 00 4c 89 e7 57 9d 0f 1f 
[  483.064188] Kernel panic - not syncing: hung_task: blocked tasks
[  483.070316] CPU: 1 PID: 486 Comm: khungtaskd Not tainted 4.4.115-gaa856bd #6
[  483.077483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  483.086810]  0000000000000000 e459a39f9bd18ec5 ffff8800bb2afca8 ffffffff81d03dad
[  483.094785]  ffffffff83882f20 ffff8800bb2afd80 dffffc0000000000 7fffffffffffffff
[  483.102754]  ffff8801d8f08448 ffff8800bb2afd70 ffffffff8141acca 0000000041b58ab3
[  483.110727] Call Trace:
[  483.113348]  [<ffffffff81d03dad>] dump_stack+0xc1/0x124
[  483.118708]  [<ffffffff8141acca>] panic+0x1aa/0x388
[  483.123714]  [<ffffffff8141ab20>] ? percpu_up_read.constprop.45+0xe1/0xe1
[  483.130613]  [<ffffffff81d0ec68>] ? nmi_trigger_all_cpu_backtrace+0x3f8/0x550
[  483.137855]  [<ffffffff81d0ec68>] ? nmi_trigger_all_cpu_backtrace+0x3f8/0x550
[  483.145098]  [<ffffffff81368cdb>] watchdog+0x70b/0xae0
[  483.150345]  [<ffffffff81368693>] ? watchdog+0xc3/0xae0
[  483.155678]  [<ffffffff811907e8>] kthread+0x268/0x300
[  483.160838]  [<ffffffff813685d0>] ? reset_hung_task_detector+0x20/0x20
[  483.167474]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  483.174108]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  483.180746]  [<ffffffff83774845>] ret_from_fork+0x55/0x80
[  483.186253]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  483.193260] Dumping ftrace buffer:
[  483.196770]    (ftrace buffer empty)
[  483.200453] Kernel Offset: disabled
[  483.204049] Rebooting in 86400 seconds..