INIT: Id "4" 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 "2" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.29' (ECDSA) to the list of known hosts. 2018/03/26 19:52:04 parsed 1 programs 2018/03/26 19:52:04 executed programs: 0 [ 821.269918] IPVS: Creating netns size=2552 id=1 [ 821.308639] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 821.317739] IPVS: Creating netns size=2552 id=2 [ 821.327754] IPVS: stopping backup sync thread 3938 ... [ 821.339085] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 821.356627] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 821.357062] IPVS: stopping backup sync thread 3941 ... [ 821.358506] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 821.366871] IPVS: stopping backup sync thread 3950 ... [ 821.368437] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 821.385874] IPVS: stopping backup sync thread 3953 ... [ 821.388056] IPVS: stopping backup sync thread 3949 ... [ 821.389051] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 821.399170] IPVS: stopping backup sync thread 3959 ... [ 821.406637] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 821.408410] IPVS: stopping backup sync thread 3962 ... [ 821.409988] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 821.419082] IPVS: stopping backup sync thread 3965 ... [ 821.448175] IPVS: Creating netns size=2552 id=3 INIT: Id "5" 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 INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes [ 962.386056] INFO: task syz-executor1:3911 blocked for more than 120 seconds. [ 962.393266] Not tainted 4.4.124-g851fb4d #18 [ 962.398219] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 962.406183] syz-executor1 D ffff8801d8ec7bc8 28888 3911 1 0x20020004 [ 962.413622] ffff8801d8ec7bc8 ffff8800bb1a0000 0000000000000000 0000000000000007 [ 962.421637] ffff8800bb1a0000 ffff8801db21fdb8 ffff8801db21fde0 ffff8801db21f4d8 [ 962.429637] ffff8801db21f4c0 ffff8800aad4c800 ffff8800bb1a0000 0000000000000000 [ 962.437675] Call Trace: [ 962.440405] [] schedule+0x7a/0x1b0 [ 962.445579] [] schedule_preempt_disabled+0x13/0x20 [ 962.452168] [] mutex_lock_nested+0x306/0x850 [ 962.458320] [] ? copy_net_ns+0xc7/0x190 [ 962.463915] [] ? __ww_mutex_lock+0x14f0/0x14f0 [ 962.470238] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 962.477163] [] ? kmem_cache_alloc+0x219/0x290 [ 962.483279] [] copy_net_ns+0xc7/0x190 [ 962.488762] [] create_new_namespaces+0x2f6/0x610 [ 962.495144] [] unshare_nsproxy_namespaces+0xae/0x1e0 [ 962.501907] [] SyS_unshare+0x3da/0x700 [ 962.507524] [] ? SyS_clone+0x50/0x50 [ 962.512858] [] ? _raw_read_unlock+0x2c/0x50 [ 962.518842] [] ? do_prlimit+0x2af/0x790 [ 962.524477] [] ? compat_SyS_setrlimit+0x14a/0x200 [ 962.530978] [] ? compat_SyS_sigprocmask+0x210/0x210 [ 962.537660] [] ? do_fast_syscall_32+0xd7/0x8a0 [ 962.543874] [] ? SyS_clone+0x50/0x50 [ 962.549242] [] do_fast_syscall_32+0x321/0x8a0 [ 962.555357] [] sysenter_flags_fixed+0xd/0x17 [ 962.561564] 1 lock held by syz-executor1/3911: [ 962.566141] #0: (net_mutex){+.+.+.}, at: [] copy_net_ns+0xc7/0x190 [ 962.574751] Sending NMI to all CPUs: [ 962.578908] NMI backtrace for cpu 0 [ 962.582510] CPU: 0 PID: 487 Comm: khungtaskd Not tainted 4.4.124-g851fb4d #18 [ 962.589781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 962.599118] task: ffff8800bac30000 task.stack: ffff8800bac28000 [ 962.605145] RIP: 0010:[] [] flat_send_IPI_mask+0xf7/0x1a0 [ 962.613878] RSP: 0018:ffff8800bac2fcb8 EFLAGS: 00000046 [ 962.619310] RAX: 0000000003000000 RBX: 0000000000000c00 RCX: 0000000000000000 [ 962.626573] RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fb300 [ 962.633815] RBP: ffff8800bac2fce0 R08: 0000000000000001 R09: 0000000000000000 [ 962.641076] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000246 [ 962.648332] R13: 0000000000000003 R14: ffffffff8426f5a0 R15: 0000000000000002 [ 962.655570] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 962.663803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 962.669756] CR2: 00007f5d0a0c3000 CR3: 00000000b2f04000 CR4: 0000000000160670 [ 962.677019] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 962.684351] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 962.691617] Stack: [ 962.693734] ffffffff8426f5a0 ffffffff847f09c0 fffffbfff08fdbec dffffc0000000000 [ 962.701279] ffff8801db31bca0 ffff8800bac2fd00 ffffffff810b9adb ffffffff839f6e40 [ 962.708794] 0000000000000003 ffff8800bac2fd60 ffffffff81d115a4 ffffffff8141b803 [ 962.716317] Call Trace: [ 962.718867] [] nmi_raise_cpu_backtrace+0x5b/0x70 [ 962.725239] [] nmi_trigger_all_cpu_backtrace+0x4a4/0x550 [ 962.732346] [] ? print_lock+0xab/0xae [ 962.737789] [] ? irq_force_complete_move+0x3b0/0x3b0 [ 962.744511] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 962.751540] [] watchdog+0x6fa/0xae0 [ 962.756810] [] ? watchdog+0xc3/0xae0 [ 962.762142] [] kthread+0x268/0x300 [ 962.767321] [] ? reset_hung_task_detector+0x20/0x20 [ 962.773951] [] ? kthread_create_on_node+0x400/0x400 [ 962.780603] [] ? kthread_create_on_node+0x400/0x400 [ 962.787252] [] ret_from_fork+0x55/0x80 [ 962.792754] [] ? kthread_create_on_node+0x400/0x400 [ 962.799411] 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 8b 31 17 00 4c 89 e7 57 9d 0f 1f [ 962.818389] NMI backtrace for cpu 1 [ 962.821994] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.124-g851fb4d #18 [ 962.829001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 962.838356] task: ffff8801d9b49800 task.stack: ffff8801d9b58000 [ 962.844382] RIP: 0010:[] [] native_safe_halt+0x6/0x10 [ 962.852782] RSP: 0018:ffff8801d9b5fd98 EFLAGS: 00000246 [ 962.858218] RAX: 0000000000000007 RBX: ffffffff847deac8 RCX: 0000000000000000 [ 962.865460] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801d9b4a0dc [ 962.872725] RBP: ffff8801d9b5fd98 R08: 0000000000000000 R09: 0000000000000000 [ 962.879984] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 962.887254] R13: fffffbfff07088c0 R14: ffffffff847ece38 R15: 0000000000000000 [ 962.894493] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 962.902711] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 962.908578] CR2: 0000000000d90000 CR3: 00000001c82c2000 CR4: 0000000000160670 [ 962.915818] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 962.923080] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 962.930334] Stack: [ 962.932456] ffff8801d9b5fdd0 ffffffff81027e85 ffff8801d9b60000 ffffffff847deac8 [ 962.939979] fffffbfff07088c0 ffffffff847ece38 0000000000000000 ffff8801d9b5fde0 [ 962.947501] ffffffff810293fa ffff8801d9b5fdf8 ffffffff812217c8 dffffc0000000000 [ 962.955000] Call Trace: [ 962.957579] [] default_idle+0x55/0x3c0 [ 962.963083] [] arch_cpu_idle+0xa/0x10 [ 962.968522] [] default_idle_call+0x48/0x70 [ 962.974374] [] cpu_startup_entry+0x5fd/0x8f0 [ 962.980426] [] ? call_cpuidle+0xe0/0xe0 [ 962.986035] [] ? clockevents_register_device+0x122/0x230 [ 962.993105] [] start_secondary+0x304/0x3e0 [ 962.998982] [] ? set_cpu_sibling_map+0x1080/0x1080 [ 963.005539] 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 [ 963.024768] Kernel panic - not syncing: hung_task: blocked tasks [ 963.030899] CPU: 0 PID: 487 Comm: khungtaskd Not tainted 4.4.124-g851fb4d #18 [ 963.038139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 963.047460] 0000000000000000 234f59feb19cdfa0 ffff8800bac2fca8 ffffffff81d0663d [ 963.055431] ffffffff838831a0 ffff8800bac2fd80 dffffc0000000000 7fffffffffffffff [ 963.063387] ffff8800bb1a0448 ffff8800bac2fd70 ffffffff8141b2da 0000000041b58ab3 [ 963.071350] Call Trace: [ 963.073965] [] dump_stack+0xc1/0x124 [ 963.079295] [] panic+0x1aa/0x388 [ 963.084285] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 963.091176] [] ? nmi_trigger_all_cpu_backtrace+0x3f8/0x550 [ 963.098416] [] ? nmi_trigger_all_cpu_backtrace+0x3f8/0x550 [ 963.105658] [] watchdog+0x70b/0xae0 [ 963.110900] [] ? watchdog+0xc3/0xae0 [ 963.116231] [] kthread+0x268/0x300 [ 963.121389] [] ? reset_hung_task_detector+0x20/0x20 [ 963.128024] [] ? kthread_create_on_node+0x400/0x400 [ 963.134665] [] ? kthread_create_on_node+0x400/0x400 [ 963.141301] [] ret_from_fork+0x55/0x80 [ 963.146806] [] ? kthread_create_on_node+0x400/0x400 [ 963.153918] Dumping ftrace buffer: [ 963.157478] (ftrace buffer empty) [ 963.161157] Kernel Offset: disabled [ 963.164764] Rebooting in 86400 seconds..