bridge0: port 1(bridge_slave_0) entered disabled state
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed
bond0 (unregistering): Releasing backup interface bond_slave_0
bond0 (unregistering): Released all slaves
INFO: task syz-executor4:29810 blocked for more than 140 seconds.
      Not tainted 4.19.0-rc6-next-20181005+ #88
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor4   D24472 29810   6206 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2830 [inline]
 __schedule+0x86c/0x1ed0 kernel/sched/core.c:3479
 schedule+0xfe/0x460 kernel/sched/core.c:3523
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3581
 __mutex_lock_common kernel/locking/mutex.c:1002 [inline]
 __mutex_lock+0xbe7/0x1700 kernel/locking/mutex.c:1072
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
 perf_trace_init+0x58/0x250 kernel/trace/trace_event_perf.c:218
 perf_tp_event_init+0xa6/0x120 kernel/events/core.c:8350
 perf_try_init_event+0x137/0x2f0 kernel/events/core.c:9744
 perf_init_event kernel/events/core.c:9782 [inline]
 perf_event_alloc.part.93+0x1b32/0x3590 kernel/events/core.c:10048
 perf_event_alloc kernel/events/core.c:10404 [inline]
 __do_sys_perf_event_open+0xa9c/0x2f30 kernel/events/core.c:10505
 __se_sys_perf_event_open kernel/events/core.c:10394 [inline]
 __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10394
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457579
Code: 24 08 48 89 01 e8 d7 2d fc ff e8 22 7a fc ff b8 02 00 00 00 48 8d 0d 6a 60 09 01 87 01 8b 05 62 60 09 01 83 f8 01 0f 85 8a 00 <00> 00 b8 01 00 00 00 88 05 9e 65 09 01 84 c0 74 72 b8 01 00 00 00
RSP: 002b:00007f4ce9b30c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457579
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f4ce9b316d4
R13: 00000000004c2f90 R14: 00000000004d4818 R15: 00000000ffffffff
INFO: task syz-executor0:29811 blocked for more than 140 seconds.
      Not tainted 4.19.0-rc6-next-20181005+ #88
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor0   D24472 29811   6080 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2830 [inline]
 __schedule+0x86c/0x1ed0 kernel/sched/core.c:3479
 schedule+0xfe/0x460 kernel/sched/core.c:3523
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3581
 __mutex_lock_common kernel/locking/mutex.c:1002 [inline]
 __mutex_lock+0xbe7/0x1700 kernel/locking/mutex.c:1072
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
 perf_trace_init+0x58/0x250 kernel/trace/trace_event_perf.c:218
 perf_tp_event_init+0xa6/0x120 kernel/events/core.c:8350
 perf_try_init_event+0x137/0x2f0 kernel/events/core.c:9744
 perf_init_event kernel/events/core.c:9782 [inline]
 perf_event_alloc.part.93+0x1b32/0x3590 kernel/events/core.c:10048
 perf_event_alloc kernel/events/core.c:10404 [inline]
 __do_sys_perf_event_open+0xa9c/0x2f30 kernel/events/core.c:10505
 __se_sys_perf_event_open kernel/events/core.c:10394 [inline]
 __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10394
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457579
Code: 24 08 48 89 01 e8 d7 2d fc ff e8 22 7a fc ff b8 02 00 00 00 48 8d 0d 6a 60 09 01 87 01 8b 05 62 60 09 01 83 f8 01 0f 85 8a 00 <00> 00 b8 01 00 00 00 88 05 9e 65 09 01 84 c0 74 72 b8 01 00 00 00
RSP: 002b:00007f3736167c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457579
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f37361686d4
R13: 00000000004c2f90 R14: 00000000004d4818 R15: 00000000ffffffff
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 980 Comm: khungtaskd Not tainted 4.19.0-rc6-next-20181005+ #88
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d3/0x2c4 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold.4+0x63/0xa2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1c2/0x22c lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:144 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline]
 watchdog+0xb39/0x1050 kernel/hung_task.c:265
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:57