INIT: Id "5" respawning too fast: disabled for 5 minutes

INIT: Id "4" respawning too fast: disabled for 5 minutes

INIT: Id "6" respawning too fast: disabled for 5 minutes

INIT: Id "3" respawning too fast: disabled for 5 minutes

INIT: Id "2" respawning too fast: disabled for 5 minutes
Warning: Permanently added '10.128.15.220' (ECDSA) to the list of known hosts.
executing program
[  480.061259] IPVS: Creating netns size=2552 id=1

INIT: Id "2" respawning too fast: disabled for 5 minutes

INIT: Id "3" respawning too fast: disabled for 5 minutes

INIT: Id "1" respawning too fast: disabled for 5 minutes

INIT: Id "4" respawning too fast: disabled for 5 minutes

INIT: Id "6" respawning too fast: disabled for 5 minutes

INIT: Id "5" respawning too fast: disabled for 5 minutes
[  602.093881] INFO: task syzkaller912448:3819 blocked for more than 120 seconds.
[  602.101283]       Not tainted 4.4.115-gaa856bd #7
[  602.106124] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  602.114295] syzkaller912448 D ffff8800bae37368 27712  3819   3815 0x20020002
[  602.121750]  ffff8800bae37368 0000000000000000 0000000000000000 0000000000000000
[  602.129768]  0000000000000001 ffff8800bae37300 ffff8801db21fdb8 ffff8801db21fde0
[  602.137765]  ffff8801db21f4d8 ffffffff84217840 ffff8801d84ee000 0000000000000000
[  602.145783] Call Trace:
[  602.148428]  [<ffffffff837662da>] schedule+0x7a/0x1b0
[  602.153591]  [<ffffffff83766ad3>] schedule_preempt_disabled+0x13/0x20
[  602.160167]  [<ffffffff8376b096>] mutex_lock_nested+0x306/0x850
[  602.166242]  [<ffffffff82d2ad8d>] ? snd_seq_do_ioctl+0x15d/0x1b0
[  602.172360]  [<ffffffff8376ad90>] ? __ww_mutex_lock+0x14f0/0x14f0
[  602.178603]  [<ffffffff81139428>] ? do_group_exit+0x108/0x320
[  602.184486]  [<ffffffff83775daa>] ? sysenter_flags_fixed+0xd/0x17
[  602.190691]  [<ffffffff82d2ad8d>] snd_seq_do_ioctl+0x15d/0x1b0
[  602.196661]  [<ffffffff82d2aeb7>] snd_seq_kernel_client_ctl+0xd7/0x150
[  602.203323]  [<ffffffff82d54150>] snd_seq_oss_writeq_clear+0xe0/0x140
[  602.209904]  [<ffffffff82d54070>] ? snd_seq_oss_writeq_wakeup+0xc0/0xc0
[  602.216668]  [<ffffffff814fdb88>] ? kasan_slab_free+0x88/0xc0
[  602.222557]  [<ffffffff814fa60c>] ? kfree+0xfc/0x300
[  602.227671]  [<ffffffff82d42d10>] ? create_port+0x230/0x230
[  602.233367]  [<ffffffff82d541cf>] snd_seq_oss_writeq_delete+0x1f/0x30
[  602.239948]  [<ffffffff82d42d71>] free_devinfo+0x61/0xb0
[  602.245389]  [<ffffffff82d3d015>] port_delete+0xd5/0x110
[  602.250807]  [<ffffffff82d3d913>] snd_seq_delete_port+0x1c3/0x200
[  602.257036]  [<ffffffff82d29142>] snd_seq_ioctl_delete_port+0xf2/0x1d0
[  602.263675]  [<ffffffff82d29050>] ? snd_seq_ioctl_set_port_info+0x190/0x190
[  602.270781]  [<ffffffff8376e600>] ? __ww_mutex_lock_interruptible+0x14d0/0x14d0
[  602.278220]  [<ffffffff82d2adb2>] snd_seq_do_ioctl+0x182/0x1b0
[  602.284227]  [<ffffffff82d2aeb7>] snd_seq_kernel_client_ctl+0xd7/0x150
[  602.290866]  [<ffffffff82d42730>] ? snd_midi_event_new+0x200/0x200
[  602.297184]  [<ffffffff82d3bd5f>] snd_seq_event_port_detach+0xaf/0x100
[  602.303838]  [<ffffffff82d3bcb0>] ? snd_seq_event_port_attach+0x190/0x190
[  602.310738]  [<ffffffff82d42e33>] delete_port+0x73/0xb0
[  602.316093]  [<ffffffff82d43fe4>] snd_seq_oss_release+0xe4/0x130
[  602.322208]  [<ffffffff82d42782>] odev_release+0x52/0x70
[  602.327695]  [<ffffffff815236a3>] __fput+0x233/0x6d0
[  602.332776]  [<ffffffff81523bc5>] ____fput+0x15/0x20
[  602.337899]  [<ffffffff8118b9e4>] task_work_run+0x104/0x180
[  602.343582]  [<ffffffff81132f8a>] do_exit+0x82a/0x2a10
[  602.348871]  [<ffffffff81237410>] ? debug_check_no_locks_freed+0x2c0/0x2c0
[  602.355881]  [<ffffffff81132760>] ? release_task+0x1240/0x1240
[  602.361824]  [<ffffffff814fa2b7>] ? kmem_cache_free+0xc7/0x320
[  602.367802]  [<ffffffff8154feee>] ? putname+0xee/0x130
[  602.373529]  [<ffffffff8151c104>] ? do_sys_open+0x254/0x660
[  602.379297]  [<ffffffff8161cf1d>] ? compat_SyS_openat+0x2d/0x40
[  602.385364]  [<ffffffff81151cf3>] ? __dequeue_signal+0xa3/0x550
[  602.391392]  [<ffffffff81150cd9>] ? recalc_sigpending_tsk+0x139/0x180
[  602.397962]  [<ffffffff81150d96>] ? recalc_sigpending+0x76/0xa0
[  602.404004]  [<ffffffff81152264>] ? dequeue_signal+0xc4/0x4b0
[  602.409861]  [<ffffffff811521a0>] ? __dequeue_signal+0x550/0x550
[  602.415999]  [<ffffffff81139428>] do_group_exit+0x108/0x320
[  602.421684]  [<ffffffff8115c882>] get_signal+0x4f2/0x1550
[  602.427235]  [<ffffffff8100e7fb>] do_signal+0x8b/0x1d40
[  602.432569]  [<ffffffff8154feee>] ? putname+0xee/0x130
[  602.437844]  [<ffffffff814fdb88>] ? kasan_slab_free+0x88/0xc0
[  602.443704]  [<ffffffff8100e770>] ? setup_sigcontext+0x780/0x780
[  602.449849]  [<ffffffff814fa387>] ? kmem_cache_free+0x197/0x320
[  602.455896]  [<ffffffff8154fef3>] ? putname+0xf3/0x130
[  602.461170]  [<ffffffff812e28d9>] ? compat_SyS_futex+0x1f9/0x2a0
[  602.467307]  [<ffffffff812e26e0>] ? compat_SyS_get_robust_list+0x300/0x300
[  602.474338]  [<ffffffff810dc600>] ? __do_page_fault+0x290/0xa00
[  602.480365]  [<ffffffff810035fa>] exit_to_usermode_loop+0x11a/0x160
[  602.486768]  [<ffffffff81007067>] do_fast_syscall_32+0x607/0x890
[  602.492891]  [<ffffffff83775daa>] sysenter_flags_fixed+0xd/0x17
[  602.499011] INFO: lockdep is turned off.
[  602.503046] Sending NMI to all CPUs:
[  602.507926] NMI backtrace for cpu 0
[  602.511525] CPU: 0 PID: 485 Comm: khungtaskd Not tainted 4.4.115-gaa856bd #7
[  602.518703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  602.528044] task: ffff8800bad83000 task.stack: ffff8800bb168000
[  602.534088] RIP: 0010:[<ffffffff810c3ec7>]  [<ffffffff810c3ec7>] flat_send_IPI_mask+0xf7/0x1a0
[  602.542804] RSP: 0018:ffff8800bb16fcb8  EFLAGS: 00000046
[  602.548245] RAX: 0000000003000000 RBX: 0000000000000c00 RCX: ffffffff8126a292
[  602.555500] RDX: 0000000000000c00 RSI: 0000000000000002 RDI: ffffffffff5fb300
[  602.562739] RBP: ffff8800bb16fce0 R08: 0000000000000001 R09: 0000000000000000
[  602.570000] R10: 0000000000000000 R11: fffffbfff0ad7e2c R12: 0000000000000246
[  602.577255] R13: 0000000000000003 R14: ffffffff8426f3a0 R15: 0000000000000002
[  602.584516] FS:  0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[  602.592712] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  602.598592] CR2: 0000000002439000 CR3: 00000000b665e000 CR4: 0000000000160670
[  602.605850] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  602.613091] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  602.620359] Stack:
[  602.622478]  ffffffff8426f3a0 ffffffff847ef7c0 fffffbfff08fd9ac dffffc0000000000
[  602.630005]  ffff8801db31bca0 ffff8800bb16fd00 ffffffff810b99fb ffffffff839f61c0
[  602.637523]  0000000000000003 ffff8800bb16fd60 ffffffff81d0ed14 0000000000000001
[  602.645054] Call Trace:
[  602.647609]  [<ffffffff810b99fb>] nmi_raise_cpu_backtrace+0x5b/0x70
[  602.654009]  [<ffffffff81d0ed14>] nmi_trigger_all_cpu_backtrace+0x4a4/0x550
[  602.661078]  [<ffffffff810b99a0>] ? irq_force_complete_move+0x3b0/0x3b0
[  602.667825]  [<ffffffff810b9a94>] arch_trigger_all_cpu_backtrace+0x14/0x20
[  602.674823]  [<ffffffff81368cca>] watchdog+0x6fa/0xae0
[  602.680069]  [<ffffffff81368693>] ? watchdog+0xc3/0xae0
[  602.685426]  [<ffffffff811907e8>] kthread+0x268/0x300
[  602.690584]  [<ffffffff813685d0>] ? reset_hung_task_detector+0x20/0x20
[  602.697241]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  602.703886]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  602.710517]  [<ffffffff83774845>] ret_from_fork+0x55/0x80
[  602.716043]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  602.722677] 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 
[  602.741689] NMI backtrace for cpu 1
[  602.745301] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.115-gaa856bd #7
[  602.752194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  602.761546] task: ffff8801d9b49800 task.stack: ffff8801d9b58000
[  602.767590] RIP: 0010:[<ffffffff83765073>]  [<ffffffff83765073>] __schedule+0xc33/0x1ca0
[  602.775811] RSP: 0018:ffff8801d9b5fd50  EFLAGS: 00000046
[  602.781228] RAX: 1ffffffff070a71a RBX: ffff8801db31f4c0 RCX: ffff8801d9b49800
[  602.788495] RDX: 1ffff1003b36930b RSI: 0000000000000000 RDI: ffffffff838538d0
[  602.795755] RBP: ffff8801d9b5fdc8 R08: 0000000000000000 R09: 0000000000000001
[  602.802998] R10: ffffffff838443e0 R11: 1ffff1003b36bf72 R12: ffffffff838538a0
[  602.810262] R13: dffffc0000000000 R14: ffff8801db31f4c0 R15: ffff8801d9b49800
[  602.817523] FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[  602.825742] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  602.831598] CR2: 00007f647f8b9000 CR3: 00000000b665e000 CR4: 0000000000160670
[  602.838866] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  602.846123] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  602.853362] Stack:
[  602.855502]  0000008bfd788ec8 ffff8801d9b5fda0 ffffffff812d51d6 ffff8801d9b5fda8
[  602.863003]  ffffffff81d63b00 ffff8801db31fdb8 ffff8801db31fde0 ffff8801db31f4d8
[  602.870530]  ffff8801d9b49ea0 ffff8801d9b49800 ffff8801d9b49800 dffffc0000000000
[  602.878052] Call Trace:
[  602.880607]  [<ffffffff812d51d6>] ? update_ts_time_stats+0xc6/0x1f0
[  602.887003]  [<ffffffff81d63b00>] ? assoc_array_gc+0x12e0/0x1300
[  602.893115]  [<ffffffff837662da>] schedule+0x7a/0x1b0
[  602.898301]  [<ffffffff83766ad3>] schedule_preempt_disabled+0x13/0x20
[  602.904863]  [<ffffffff81221830>] cpu_startup_entry+0x2c0/0x8f0
[  602.910890]  [<ffffffff81221570>] ? call_cpuidle+0xe0/0xe0
[  602.916506]  [<ffffffff812cea62>] ? clockevents_register_device+0x122/0x230
[  602.923573]  [<ffffffff810adcc4>] start_secondary+0x304/0x3e0
[  602.929461]  [<ffffffff810ad9c0>] ? set_cpu_sibling_map+0x1080/0x1080
[  602.936026] Code: e8 03 42 80 3c 28 00 0f 85 22 0e 00 00 4d 8b 24 24 4d 85 e4 0f 84 8a 0a 00 00 49 8d 7c 24 30 48 89 f8 48 c1 e8 03 42 80 3c 28 00 <0f> 85 f4 0d 00 00 4c 89 fe 48 89 df 41 ff 54 24 30 48 85 c0 74 
[  602.955061] Kernel panic - not syncing: hung_task: blocked tasks
[  602.961182] CPU: 0 PID: 485 Comm: khungtaskd Not tainted 4.4.115-gaa856bd #7
[  602.968337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  602.977660]  0000000000000000 cefd4bffcb1e22ea ffff8800bb16fca8 ffffffff81d03dad
[  602.985625]  ffffffff83882f20 ffff8800bb16fd80 dffffc0000000000 7fffffffffffffff
[  602.993596]  ffff8801d84e8448 ffff8800bb16fd70 ffffffff8141acca 0000000041b58ab3
[  603.001553] Call Trace:
[  603.004153]  [<ffffffff81d03dad>] dump_stack+0xc1/0x124
[  603.009512]  [<ffffffff8141acca>] panic+0x1aa/0x388
[  603.014497]  [<ffffffff8141ab20>] ? percpu_up_read.constprop.45+0xe1/0xe1
[  603.021391]  [<ffffffff81d0ec68>] ? nmi_trigger_all_cpu_backtrace+0x3f8/0x550
[  603.028633]  [<ffffffff81d0ec68>] ? nmi_trigger_all_cpu_backtrace+0x3f8/0x550
[  603.035886]  [<ffffffff81368cdb>] watchdog+0x70b/0xae0
[  603.041127]  [<ffffffff81368693>] ? watchdog+0xc3/0xae0
[  603.046459]  [<ffffffff811907e8>] kthread+0x268/0x300
[  603.051616]  [<ffffffff813685d0>] ? reset_hung_task_detector+0x20/0x20
[  603.058248]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  603.064880]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  603.071514]  [<ffffffff83774845>] ret_from_fork+0x55/0x80
[  603.077019]  [<ffffffff81190580>] ? kthread_create_on_node+0x400/0x400
[  603.083994] Dumping ftrace buffer:
[  603.087502]    (ftrace buffer empty)
[  603.091180] Kernel Offset: disabled
[  603.094775] Rebooting in 86400 seconds..