[ 42.026370] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.041732] device bridge_slave_0 left promiscuous mode [ 42.047290] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.092897] team0 (unregistering): Port device team_slave_1 removed [ 42.104364] team0 (unregistering): Port device team_slave_0 removed [ 42.115564] bond0 (unregistering): Releasing backup interface bond_slave_1 [ 42.131277] bond0 (unregistering): Releasing backup interface bond_slave_0 [ 42.164533] bond0 (unregistering): Released all slaves [ 42.825395] random: sshd: uninitialized urandom read (32 bytes read) [ 43.045431] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.58' (ECDSA) to the list of known hosts. [ 48.489887] random: sshd: uninitialized urandom read (32 bytes read) 2018/05/17 12:36:19 parsed 1 programs 2018/05/17 12:36:19 executed programs: 0 [ 48.929620] IPVS: ftp: loaded support on port[0] = 21 [ 48.946801] IPVS: ftp: loaded support on port[0] = 21 [ 48.951882] IPVS: ftp: loaded support on port[0] = 21 [ 48.964566] IPVS: ftp: loaded support on port[0] = 21 [ 48.966116] IPVS: ftp: loaded support on port[0] = 21 [ 49.000288] IPVS: ftp: loaded support on port[0] = 21 [ 49.004226] IPVS: ftp: loaded support on port[0] = 21 [ 49.012118] IPVS: ftp: loaded support on port[0] = 21 [ 175.382018] INFO: rcu_sched self-detected stall on CPU [ 175.383026] INFO: rcu_sched detected stalls on CPUs/tasks: [ 175.387420] 1-....: (124998 ticks this GP) idle=da2/1/4611686018427387906 softirq=12308/12308 fqs=30969 [ 175.402742] [ 175.402759] 1-....: (124998 ticks this GP) idle=da2/1/4611686018427387906 softirq=12308/12308 fqs=30969 [ 175.402766] [ 175.404462] (t=125002 jiffies g=6046 c=6045 q=1179) [ 175.414144] (detected by 0, t=125002 jiffies, g=6046, c=6045, q=1179) [ 175.414156] Sending NMI from CPU 0 to CPUs 1: [ 175.431950] NMI backtrace for cpu 1 [ 175.431960] CPU: 1 PID: 5134 Comm: syz-executor3 Not tainted 4.17.0-rc5+ #1 [ 175.431965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 175.431981] RIP: 0010:native_queued_spin_lock_slowpath+0x204/0xde0 [ 175.431985] RSP: 0018:ffff8801db107030 EFLAGS: 00000002 [ 175.431992] RAX: 0000000000000000 RBX: ffffed003b620e1f RCX: 0000000000000004 [ 175.431997] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff88b911c0 [ 175.432002] RBP: ffff8801db1073a0 R08: fffffbfff1172239 R09: fffffbfff1172238 [ 175.432008] R10: fffffbfff1172238 R11: ffffffff88b911c3 R12: ffffffff88b911c0 [ 175.432013] R13: ffff8801db107378 R14: 0000000000000001 R15: dffffc0000000000 [ 175.432020] FS: 00007fd0bf7b5700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 [ 175.432026] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 175.432031] CR2: 00000000004d91e4 CR3: 00000001c68eb000 CR4: 00000000001406e0 [ 175.432038] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 175.432043] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 175.432045] Call Trace: [ 175.432048] [ 175.432061] ? netconsole_netdev_event+0x273/0x280 [ 175.432069] ? .slowpath+0x15/0x15 [ 175.432081] ? wake_up_klogd+0x100/0x100 [ 175.432090] ? lock_release+0xa10/0xa10 [ 175.432100] ? kasan_check_read+0x11/0x20 [ 175.432109] ? do_raw_spin_unlock+0x10/0x2e0 [ 175.432118] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 175.432127] ? kasan_check_write+0x14/0x20 [ 175.432136] ? do_raw_spin_lock+0xc1/0x200 [ 175.432146] ? vprintk_emit+0x3e5/0xdd0 [ 175.432156] ? console_unlock+0x1100/0x1100 [ 175.432164] ? print_usage_bug+0xc0/0xc0 [ 175.432172] ? graph_lock+0x170/0x170 [ 175.432181] ? lock_acquire+0x1dc/0x520 [ 175.432191] ? rcu_dump_cpu_stacks+0x9d/0x1c2 [ 175.432200] ? lock_release+0xa10/0xa10 [ 175.432210] do_raw_spin_lock+0x1a7/0x200 [ 175.432222] _raw_spin_lock_irqsave+0x9e/0xc0 [ 175.432231] ? rcu_dump_cpu_stacks+0x9d/0x1c2 [ 175.432240] rcu_dump_cpu_stacks+0x9d/0x1c2 [ 175.432252] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 175.432262] ? find_next_bit+0x104/0x130 [ 175.432273] check_cpu_stall.isra.61.cold.80+0x36c/0x59a [ 175.432285] ? print_other_cpu_stall+0x4a0/0x4a0 [ 175.432295] ? debug_check_no_locks_freed+0x310/0x310 [ 175.432303] ? __lock_acquire+0x7f5/0x5140 [ 175.432314] ? debug_check_no_locks_freed+0x310/0x310 [ 175.432323] ? debug_check_no_locks_freed+0x310/0x310 [ 175.432332] ? ___ratelimit.cold.2+0x6a/0x6a [ 175.432339] ? graph_lock+0x170/0x170 [ 175.432347] ? __lock_is_held+0xb5/0x140 [ 175.432357] ? graph_lock+0x170/0x170 [ 175.432364] ? graph_lock+0x170/0x170 [ 175.432375] ? __lock_is_held+0xb5/0x140 [ 175.432386] rcu_check_callbacks+0x21b/0xad0 [ 175.432396] ? rcu_cpu_stall_reset+0x210/0x210 [ 175.432404] ? trace_hardirqs_off+0xd/0x10 [ 175.432414] ? raise_softirq+0x1b2/0x450 [ 175.432423] ? raise_softirq_irqoff+0x310/0x310 [ 175.432434] ? pvclock_read_flags+0x160/0x160 [ 175.432443] ? account_guest_time+0x3d0/0x3d0 [ 175.432453] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 175.432463] ? hrtimer_run_queues+0x70/0x390 [ 175.432472] ? run_local_timers+0x168/0x1d0 [ 175.432481] ? timer_clear_idle+0x50/0x50 [ 175.432490] ? account_system_time+0x7f/0xb0 [ 175.432499] ? account_process_tick+0x76/0x240 [ 175.432508] update_process_times+0x2d/0x70 [ 175.432517] tick_sched_handle+0x9f/0x180 [ 175.432525] tick_sched_timer+0x45/0x130 [ 175.432534] __hrtimer_run_queues+0x3e3/0x10a0 [ 175.432543] ? tick_sched_do_timer+0x1a0/0x1a0 [ 175.432553] ? hrtimer_start_range_ns+0xd10/0xd10 [ 175.432566] ? pvclock_read_flags+0x160/0x160 [ 175.432574] ? kvm_clock_read+0x25/0x30 [ 175.432583] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 175.432592] ? kvm_clock_read+0x25/0x30 [ 175.432601] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 175.432612] ? ktime_get_update_offsets_now+0x3d3/0x5c0 [ 175.432621] ? do_timer+0x50/0x50 [ 175.432630] ? rcu_nmi_exit+0xd7/0x2b0 [ 175.432640] ? do_raw_spin_lock+0xc1/0x200 [ 175.432650] hrtimer_interrupt+0x2f3/0x750 [ 175.432661] smp_apic_timer_interrupt+0x15d/0x710 [ 175.432671] ? smp_call_function_single_interrupt+0x650/0x650 [ 175.432679] ? _raw_spin_lock+0x32/0x40 [ 175.432688] ? _raw_spin_unlock+0x22/0x30 [ 175.432697] ? handle_edge_irq+0x330/0x870 [ 175.432704] ? task_prio+0x50/0x50 [ 175.432715] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 175.432724] apic_timer_interrupt+0xf/0x20 [ 175.432727] [ 175.432737] RIP: 0010:echo_char+0x152/0x340 [ 175.432741] RSP: 0018:ffff8801aa1ef720 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 175.432750] RAX: ffff8801a9a5e180 RBX: ffffc90002bb4000 RCX: ffffffff837ff667 [ 175.432754] RDX: 0000000000000000 RSI: ffffffff837ff672 RDI: 0000000000000001 [ 175.432759] RBP: ffff8801aa1ef748 R08: ffff8801a9a5e180 R09: 0000000000000001 [ 175.432764] R10: ffff8801a9a5e9e0 R11: ffff8801a9a5e180 R12: 00000000000008df [ 175.432769] R13: 0000000000000000 R14: 0000000000000008 R15: ffffc90002bb6268 [ 175.432779] ? echo_char+0x147/0x340 [ 175.432788] ? echo_char+0x152/0x340 [ 175.432798] n_tty_receive_char_special+0x1451/0x3510 [ 175.432806] ? down_read+0xaf/0x1b0 [ 175.432813] ? n_tty_receive_buf_common+0xe3/0x2ca0 [ 175.432822] ? __down_interruptible+0x6e0/0x6e0 [ 175.432831] ? n_tty_receive_char_lnext+0x720/0x720 [ 175.432841] n_tty_receive_buf_common+0x21bd/0x2ca0 [ 175.432853] ? n_tty_receive_char_special+0x3510/0x3510 [ 175.432862] ? rcu_note_context_switch+0x710/0x710 [ 175.432872] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 175.432881] n_tty_receive_buf+0x30/0x40 [ 175.432890] tty_ioctl+0x7e7/0x1870 [ 175.432900] ? tty_vhangup+0x30/0x30 [ 175.432907] ? rcu_is_watching+0x85/0x140 [ 175.432916] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 175.432928] ? __fget+0x40c/0x650 [ 175.432939] ? expand_files.part.8+0x9a0/0x9a0 [ 175.432947] ? trace_hardirqs_off+0xd/0x10 [ 175.432956] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 175.432967] ? debug_check_no_obj_freed+0x2ff/0x584 [ 175.432976] ? tty_vhangup+0x30/0x30 [ 175.432986] do_vfs_ioctl+0x1cf/0x16a0 [ 175.432994] ? rcu_pm_notify+0xc0/0xc0 [ 175.433003] ? ioctl_preallocate+0x2e0/0x2e0 [ 175.433012] ? fget_raw+0x20/0x20 [ 175.433020] ? putname+0xf2/0x130 [ 175.433028] ? rcu_read_lock_sched_held+0x108/0x120 [ 175.433037] ? kmem_cache_free+0x25c/0x2d0 [ 175.433046] ? __x64_sys_futex+0x477/0x680 [ 175.433055] ? do_futex+0x27d0/0x27d0 [ 175.433067] ? security_file_ioctl+0x94/0xc0 [ 175.433076] ksys_ioctl+0xa9/0xd0 [ 175.433086] __x64_sys_ioctl+0x73/0xb0 [ 175.433095] do_syscall_64+0x1b1/0x800 [ 175.433104] ? finish_task_switch+0x1ca/0x840 [ 175.433114] ? syscall_return_slowpath+0x5c0/0x5c0 [ 175.433123] ? syscall_return_slowpath+0x30f/0x5c0 [ 175.433133] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 175.433143] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 175.433154] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 175.433160] RIP: 0033:0x455319 [ 175.433164] RSP: 002b:00007fd0bf7b4c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 175.433172] RAX: ffffffffffffffda RBX: 00007fd0bf7b56d4 RCX: 0000000000455319 [ 175.433176] RDX: 00000000200000c0 RSI: 0000000000005412 RDI: 0000000000000004 [ 175.433181] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 175.433186] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 175.433190] R13: 00000000000002f9 R14: 00000000006f77f8 R15: 0000000000000000 [ 175.433195] Code: 5c 00 00 00 00 48 83 e7 f8 49 29 fc 41 8d 4c 24 64 c1 e9 03 f3 48 ab 48 81 c4 48 03 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 f3 90 3b ff ff ff 89 f1 81 fe 00 01 00 00 0f 84 9e 03 00 00 41 be [ 175.433997] NMI backtrace for cpu 1 [ 176.153810] CPU: 1 PID: 5134 Comm: syz-executor3 Not tainted 4.17.0-rc5+ #1 [ 176.160894] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 176.170226] Call Trace: [ 176.172789] [ 176.174939] dump_stack+0x1b9/0x294 [ 176.178553] ? dump_stack_print_info.cold.2+0x52/0x52 [ 176.183726] ? lock_release+0xa10/0xa10 [ 176.187685] nmi_cpu_backtrace.cold.4+0x19/0xce [ 176.192339] ? lapic_can_unplug_cpu.cold.26+0x3f/0x3f [ 176.197509] nmi_trigger_cpumask_backtrace+0x151/0x192 [ 176.202869] arch_trigger_cpumask_backtrace+0x14/0x20 [ 176.208045] rcu_dump_cpu_stacks+0x175/0x1c2 [ 176.212440] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 176.217446] check_cpu_stall.isra.61.cold.80+0x36c/0x59a [ 176.222885] ? print_other_cpu_stall+0x4a0/0x4a0 [ 176.228241] ? debug_check_no_locks_freed+0x310/0x310 [ 176.233415] ? __lock_acquire+0x7f5/0x5140 [ 176.237638] ? debug_check_no_locks_freed+0x310/0x310 [ 176.242816] ? debug_check_no_locks_freed+0x310/0x310 [ 176.247991] ? ___ratelimit.cold.2+0x6a/0x6a [ 176.252382] ? graph_lock+0x170/0x170 [ 176.256168] ? __lock_is_held+0xb5/0x140 [ 176.260216] ? graph_lock+0x170/0x170 [ 176.263999] ? graph_lock+0x170/0x170 [ 176.267791] ? __lock_is_held+0xb5/0x140 [ 176.271844] rcu_check_callbacks+0x21b/0xad0 [ 176.276239] ? rcu_cpu_stall_reset+0x210/0x210 [ 176.280806] ? trace_hardirqs_off+0xd/0x10 [ 176.285031] ? raise_softirq+0x1b2/0x450 [ 176.289085] ? raise_softirq_irqoff+0x310/0x310 [ 176.293744] ? pvclock_read_flags+0x160/0x160 [ 176.298224] ? account_guest_time+0x3d0/0x3d0 [ 176.302711] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 176.308235] ? hrtimer_run_queues+0x70/0x390 [ 176.312635] ? run_local_timers+0x168/0x1d0 [ 176.316950] ? timer_clear_idle+0x50/0x50 [ 176.321955] ? account_system_time+0x7f/0xb0 [ 176.326351] ? account_process_tick+0x76/0x240 [ 176.330921] update_process_times+0x2d/0x70 [ 176.335228] tick_sched_handle+0x9f/0x180 [ 176.339362] tick_sched_timer+0x45/0x130 [ 176.343409] __hrtimer_run_queues+0x3e3/0x10a0 [ 176.347980] ? tick_sched_do_timer+0x1a0/0x1a0 [ 176.352557] ? hrtimer_start_range_ns+0xd10/0xd10 [ 176.357387] ? pvclock_read_flags+0x160/0x160 [ 176.361866] ? kvm_clock_read+0x25/0x30 [ 176.365822] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 176.370828] ? kvm_clock_read+0x25/0x30 [ 176.374794] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 176.379794] ? ktime_get_update_offsets_now+0x3d3/0x5c0 [ 176.385151] ? do_timer+0x50/0x50 [ 176.388591] ? rcu_nmi_exit+0xd7/0x2b0 [ 176.392471] ? do_raw_spin_lock+0xc1/0x200 [ 176.396872] hrtimer_interrupt+0x2f3/0x750 [ 176.401108] smp_apic_timer_interrupt+0x15d/0x710 [ 176.405945] ? smp_call_function_single_interrupt+0x650/0x650 [ 176.411814] ? _raw_spin_lock+0x32/0x40 [ 176.415782] ? _raw_spin_unlock+0x22/0x30 [ 176.419916] ? handle_edge_irq+0x330/0x870 [ 176.424144] ? task_prio+0x50/0x50 [ 176.427673] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 176.432505] apic_timer_interrupt+0xf/0x20 [ 176.436726] [ 176.438953] RIP: 0010:echo_char+0x152/0x340 [ 176.443253] RSP: 0018:ffff8801aa1ef720 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 176.450947] RAX: ffff8801a9a5e180 RBX: ffffc90002bb4000 RCX: ffffffff837ff667 [ 176.458201] RDX: 0000000000000000 RSI: ffffffff837ff672 RDI: 0000000000000001 [ 176.465454] RBP: ffff8801aa1ef748 R08: ffff8801a9a5e180 R09: 0000000000000001 [ 176.472714] R10: ffff8801a9a5e9e0 R11: ffff8801a9a5e180 R12: 00000000000008df [ 176.479969] R13: 0000000000000000 R14: 0000000000000008 R15: ffffc90002bb6268 [ 176.487234] ? echo_char+0x147/0x340 [ 176.490930] ? echo_char+0x152/0x340 [ 176.494629] n_tty_receive_char_special+0x1451/0x3510 [ 176.499803] ? down_read+0xaf/0x1b0 [ 176.503410] ? n_tty_receive_buf_common+0xe3/0x2ca0 [ 176.508411] ? __down_interruptible+0x6e0/0x6e0 [ 176.513064] ? n_tty_receive_char_lnext+0x720/0x720 [ 176.518067] n_tty_receive_buf_common+0x21bd/0x2ca0 [ 176.523338] ? n_tty_receive_char_special+0x3510/0x3510 [ 176.528684] ? rcu_note_context_switch+0x710/0x710 [ 176.533609] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 176.539136] n_tty_receive_buf+0x30/0x40 [ 176.543182] tty_ioctl+0x7e7/0x1870 [ 176.546795] ? tty_vhangup+0x30/0x30 [ 176.550492] ? rcu_is_watching+0x85/0x140 [ 176.554630] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 176.559813] ? __fget+0x40c/0x650 [ 176.563257] ? expand_files.part.8+0x9a0/0x9a0 [ 176.567823] ? trace_hardirqs_off+0xd/0x10 [ 176.572041] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 176.577132] ? debug_check_no_obj_freed+0x2ff/0x584 [ 176.582142] ? tty_vhangup+0x30/0x30 [ 176.585841] do_vfs_ioctl+0x1cf/0x16a0 [ 176.589714] ? rcu_pm_notify+0xc0/0xc0 [ 176.593587] ? ioctl_preallocate+0x2e0/0x2e0 [ 176.597980] ? fget_raw+0x20/0x20 [ 176.601422] ? putname+0xf2/0x130 [ 176.604868] ? rcu_read_lock_sched_held+0x108/0x120 [ 176.609869] ? kmem_cache_free+0x25c/0x2d0 [ 176.614097] ? __x64_sys_futex+0x477/0x680 [ 176.618317] ? do_futex+0x27d0/0x27d0 [ 176.622106] ? security_file_ioctl+0x94/0xc0 [ 176.626502] ksys_ioctl+0xa9/0xd0 [ 176.629943] __x64_sys_ioctl+0x73/0xb0 [ 176.633815] do_syscall_64+0x1b1/0x800 [ 176.637685] ? finish_task_switch+0x1ca/0x840 [ 176.642164] ? syscall_return_slowpath+0x5c0/0x5c0 [ 176.647082] ? syscall_return_slowpath+0x30f/0x5c0 [ 176.652006] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 176.657375] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 176.662218] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 176.667391] RIP: 0033:0x455319 [ 176.670565] RSP: 002b:00007fd0bf7b4c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 176.678264] RAX: ffffffffffffffda RBX: 00007fd0bf7b56d4 RCX: 0000000000455319 [ 176.685521] RDX: 00000000200000c0 RSI: 0000000000005412 RDI: 0000000000000004 [ 176.692771] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 176.700024] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 176.707282] R13: 00000000000002f9 R14: 00000000006f77f8 R15: 0000000000000000 [ 176.714854] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.375 msecs