INIT: Id "2" 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 "1" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.10.26' (ECDSA) to the list of known hosts. 2018/03/27 00:04:22 parsed 1 programs 2018/03/27 00:04:22 executed programs: 0 [ 825.690404] IPVS: Creating netns size=2552 id=1 [ 825.739722] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 825.745208] IPVS: Creating netns size=2552 id=2 [ 825.767912] IPVS: stopping backup sync thread 3956 ... [ 825.774106] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 825.785785] IPVS: stopping backup sync thread 3964 ... [ 825.787631] IPVS: Creating netns size=2552 id=3 [ 825.792737] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 825.807540] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 825.818796] IPVS: stopping backup sync thread 3968 ... [ 825.826431] IPVS: stopping backup sync thread 3969 ... [ 825.829876] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 825.839013] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 825.847648] IPVS: stopping backup sync thread 3980 ... [ 825.849214] IPVS: sync thread started: state = BACKUP, mcast_ifn = sit0, syncid = 0, id = 0 [ 825.865322] IPVS: stopping backup sync thread 3976 ... [ 825.868290] IPVS: Creating netns size=2552 id=4 [ 825.873806] IPVS: stopping backup sync thread 3983 ... INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes 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 "4" respawning too fast: disabled for 5 minutes [ 962.204326] INFO: task syz-executor7:3942 blocked for more than 120 seconds. [ 962.211535] Not tainted 4.4.124-g851fb4d #18 [ 962.216849] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 962.224807] syz-executor7 D ffff8801d689fbc8 28888 3942 1 0x20020004 [ 962.232207] ffff8801d689fbc8 ffff8801d6f10000 0000000000000000 0000000000000007 [ 962.240233] ffff8801d6f10000 ffff8801db31fdb8 ffff8801db31fde0 ffff8801db31f4d8 [ 962.248216] ffff8801db31f4c0 ffff8800bbb31800 ffff8801d6f10000 0000000000000000 [ 962.256294] Call Trace: [ 962.258862] [] schedule+0x7a/0x1b0 [ 962.264025] [] schedule_preempt_disabled+0x13/0x20 [ 962.270616] [] mutex_lock_nested+0x306/0x850 [ 962.276676] [] ? copy_net_ns+0xc7/0x190 [ 962.282274] [] ? __ww_mutex_lock+0x14f0/0x14f0 [ 962.288529] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 962.295379] [] ? kmem_cache_alloc+0x219/0x290 [ 962.301504] [] copy_net_ns+0xc7/0x190 [ 962.306980] [] create_new_namespaces+0x2f6/0x610 [ 962.313361] [] unshare_nsproxy_namespaces+0xae/0x1e0 [ 962.320130] [] SyS_unshare+0x3da/0x700 [ 962.325674] [] ? SyS_clone+0x50/0x50 [ 962.331014] [] ? _raw_read_unlock+0x2c/0x50 [ 962.336994] [] ? do_prlimit+0x2af/0x790 [ 962.342597] [] ? compat_SyS_setrlimit+0x14a/0x200 [ 962.349096] [] ? compat_SyS_sigprocmask+0x210/0x210 [ 962.355761] [] ? do_fast_syscall_32+0xd7/0x8a0 [ 962.361966] [] ? SyS_clone+0x50/0x50 [ 962.367332] [] do_fast_syscall_32+0x321/0x8a0 [ 962.373475] [] sysenter_flags_fixed+0xd/0x17 [ 962.379722] 1 lock held by syz-executor7/3942: [ 962.384295] #0: (net_mutex){+.+.+.}, at: [] copy_net_ns+0xc7/0x190 [ 962.392922] Sending NMI to all CPUs: [ 962.396781] NMI backtrace for cpu 0 [ 962.400378] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.124-g851fb4d #18 [ 962.407411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 962.416762] task: ffffffff84217840 task.stack: ffffffff84200000 [ 962.422791] RIP: 0010:[] [] nr_iowait_cpu+0xa/0x80 [ 962.430930] RSP: 0018:ffffffff84207d88 EFLAGS: 00000016 [ 962.436377] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff812d594a [ 962.443626] RDX: 1ffff1003b64339b RSI: ffff8801db219c40 RDI: 0000000000000000 [ 962.450904] RBP: ffffffff84207dc8 R08: ffff88021fffd018 R09: 000000000000000c [ 962.458169] R10: ffffed0043fffa01 R11: 0000000000000000 R12: 000000dfc4622462 [ 962.465436] R13: 0000000000000000 R14: ffff8801db219cd8 R15: ffff8801db219c40 [ 962.472695] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 962.480950] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 962.486825] CR2: 00007fdedfa93000 CR3: 00000001d3034000 CR4: 0000000000160670 [ 962.494070] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 962.501344] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 962.508608] Stack: [ 962.510727] ffffffff812d5982 0000000000242b59 000000dfc4622462 ffff8801db219c40 [ 962.518259] 000000dfc4622462 ffff8801db219cd0 000000dfc4622462 ffffffff84208000 [ 962.525781] ffffffff84207de8 ffffffff812d5e66 ffff8801db219c40 ffff8801db219cb4 [ 962.533287] Call Trace: [ 962.535875] [] ? update_ts_time_stats+0x112/0x1f0 [ 962.542424] [] tick_nohz_stop_idle+0x26/0x70 [ 962.548483] [] tick_nohz_idle_exit+0x2cf/0x3d0 [ 962.554702] [] cpu_startup_entry+0x2a5/0x8f0 [ 962.560732] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 962.567654] [] ? call_cpuidle+0xe0/0xe0 [ 962.573247] [] rest_init+0x189/0x190 [ 962.578623] [] start_kernel+0x6b9/0x6ee [ 962.584246] [] ? thread_stack_cache_init+0xb/0xb [ 962.590623] [] ? early_idt_handler_array+0x120/0x120 [ 962.597404] [] ? early_idt_handler_array+0x120/0x120 [ 962.604147] [] x86_64_start_reservations+0x2a/0x2c [ 962.610777] [] x86_64_start_kernel+0x140/0x163 [ 962.617025] Code: ff 48 c7 c7 64 df 7e 84 48 89 45 d0 e8 70 72 33 00 48 8b 45 d0 eb 8d 66 2e 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df <55> 48 89 e5 41 54 4c 63 e7 4a 8d 3c e5 40 c8 7e 84 53 48 c7 c3 [ 962.636051] NMI backtrace for cpu 1 [ 962.639747] CPU: 1 PID: 486 Comm: khungtaskd Not tainted 4.4.124-g851fb4d #18 [ 962.647054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 962.656430] task: ffff8800bacee000 task.stack: ffff8800bacb8000 [ 962.662481] RIP: 0010:[] [] flat_send_IPI_mask+0xf7/0x1a0 [ 962.671283] RSP: 0018:ffff8800bacbfcb8 EFLAGS: 00000046 [ 962.676768] RAX: 0000000003000000 RBX: 0000000000000c00 RCX: 0000000000000000 [ 962.684027] RDX: 0000000000000c00 RSI: 0000000000000000 RDI: ffffffffff5fb300 [ 962.691315] RBP: ffff8800bacbfce0 R08: 0000000000000001 R09: 0000000000000000 [ 962.698838] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000246 [ 962.706112] R13: 0000000000000003 R14: ffffffff8426f5a0 R15: 0000000000000002 [ 962.713364] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 962.721622] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 962.727509] CR2: 0000000000e13000 CR3: 00000001d3034000 CR4: 0000000000160670 [ 962.734776] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 962.742025] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 962.749313] Stack: [ 962.751436] ffffffff8426f5a0 ffffffff847f09c0 fffffbfff08fdbec dffffc0000000000 [ 962.758969] ffff8801db31bca0 ffff8800bacbfd00 ffffffff810b9adb ffffffff839f6e40 [ 962.766490] 0000000000000003 ffff8800bacbfd60 ffffffff81d115a4 ffffffff8141b803 [ 962.773992] Call Trace: [ 962.776577] [] nmi_raise_cpu_backtrace+0x5b/0x70 [ 962.782953] [] nmi_trigger_all_cpu_backtrace+0x4a4/0x550 [ 962.790067] [] ? print_lock+0xab/0xae [ 962.795511] [] ? irq_force_complete_move+0x3b0/0x3b0 [ 962.802238] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 962.809271] [] watchdog+0x6fa/0xae0 [ 962.814738] [] ? watchdog+0xc3/0xae0 [ 962.820074] [] kthread+0x268/0x300 [ 962.825258] [] ? reset_hung_task_detector+0x20/0x20 [ 962.831894] [] ? kthread_create_on_node+0x400/0x400 [ 962.838576] [] ? kthread_create_on_node+0x400/0x400 [ 962.845239] [] ret_from_fork+0x55/0x80 [ 962.850748] [] ? kthread_create_on_node+0x400/0x400 [ 962.857426] 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 [ 962.876633] Kernel panic - not syncing: hung_task: blocked tasks [ 962.882786] CPU: 0 PID: 486 Comm: khungtaskd Not tainted 4.4.124-g851fb4d #18 [ 962.890033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 962.899363] 0000000000000000 9d7fac01eeaaf8a4 ffff8800bacbfca8 ffffffff81d0663d [ 962.907328] ffffffff838831a0 ffff8800bacbfd80 dffffc0000000000 7fffffffffffffff [ 962.915290] ffff8801d6f10448 ffff8800bacbfd70 ffffffff8141b2da 0000000041b58ab3 [ 962.923257] Call Trace: [ 962.925820] [] dump_stack+0xc1/0x124 [ 962.931154] [] panic+0x1aa/0x388 [ 962.936142] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 962.943038] [] ? nmi_trigger_all_cpu_backtrace+0x3f8/0x550 [ 962.950281] [] ? nmi_trigger_all_cpu_backtrace+0x3f8/0x550 [ 962.957532] [] watchdog+0x70b/0xae0 [ 962.962781] [] ? watchdog+0xc3/0xae0 [ 962.968118] [] kthread+0x268/0x300 [ 962.973277] [] ? reset_hung_task_detector+0x20/0x20 [ 962.979914] [] ? kthread_create_on_node+0x400/0x400 [ 962.986552] [] ? kthread_create_on_node+0x400/0x400 [ 962.993275] [] ret_from_fork+0x55/0x80 [ 962.998781] [] ? kthread_create_on_node+0x400/0x400 [ 963.005918] Dumping ftrace buffer: [ 963.009487] (ftrace buffer empty) [ 963.013171] Kernel Offset: disabled [ 963.016785] Rebooting in 86400 seconds..