======================================
| [ 1232.333109][   T68] br1: port 1(vx10) entered disabled state
| [ 1232.497415][   T68] ------------[ cut here ]------------
| [ 1232.497718][ T68] WARNING: CPU: 2 PID: 68 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
| [ 1232.498070][   T68] Modules linked in: macvlan vxlan ip6_udp_tunnel udp_tunnel act_mirred ip6_gre ip6_tunnel tunnel6 cls_matchall ip_gre gre sch_tbf sch_prio act_gact cls_flower dummy sch_ingress bridge stp llc 8021q vrf veth
[ 1232.499796][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1232.500046][   T68] Workqueue: netns cleanup_net
[ 1232.500262][ T68] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.500493][ T68] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 f7 36 ba e8 ca 45 f6 fd e8 05 28 74 00 48 85 db 75 c4 48 83 c4 08 5b 5d c3 cc cc cc cc 90 <0f> 0b 90 eb 8e 48 89 f7 48 89 34 24 e8 b3 da 71 fe 48 8b 34 24 eb
All code
========
   0:	ff 31                	push   (%rcx)
   2:	d2 be 8f 00 00 00    	sarb   %cl,0x8f(%rsi)
   8:	48 c7 c7 80 f7 36 ba 	mov    $0xffffffffba36f780,%rdi
   f:	e8 ca 45 f6 fd       	call   0xfffffffffdf645de
  14:	e8 05 28 74 00       	call   0x74281e
  19:	48 85 db             	test   %rbx,%rbx
  1c:	75 c4                	jne    0xffffffffffffffe2
  1e:	48 83 c4 08          	add    $0x8,%rsp
  22:	5b                   	pop    %rbx
  23:	5d                   	pop    %rbp
  24:	c3                   	ret
  25:	cc                   	int3
  26:	cc                   	int3
  27:	cc                   	int3
  28:	cc                   	int3
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	eb 8e                	jmp    0xffffffffffffffbd
  2f:	48 89 f7             	mov    %rsi,%rdi
  32:	48 89 34 24          	mov    %rsi,(%rsp)
  36:	e8 b3 da 71 fe       	call   0xfffffffffe71daee
  3b:	48 8b 34 24          	mov    (%rsp),%rsi
  3f:	eb                   	.byte 0xeb

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	eb 8e                	jmp    0xffffffffffffff93
   5:	48 89 f7             	mov    %rsi,%rdi
   8:	48 89 34 24          	mov    %rsi,(%rsp)
   c:	e8 b3 da 71 fe       	call   0xfffffffffe71dac4
  11:	48 8b 34 24          	mov    (%rsp),%rsi
  15:	eb                   	.byte 0xeb
[ 1232.501148][   T68] RSP: 0018:ffffc900004974b8 EFLAGS: 00010287
[ 1232.501414][   T68] RAX: ffff88800ed995b0 RBX: ffff8880085fa300 RCX: ffffffffb73c50a8
[ 1232.501711][   T68] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88800f5bc178
[ 1232.502007][   T68] RBP: dffffc0000000000 R08: ffff88800f5bc130 R09: ffffed1000af606c
[ 1232.502299][   T68] R10: ffff8880057b0363 R11: dffffc0000000000 R12: ffffc90000497638
[ 1232.502611][   T68] R13: ffffc900004976a8 R14: dffffc0000000000 R15: ffffc900004976a8
[ 1232.502895][   T68] FS:  0000000000000000(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[ 1232.503240][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1232.503505][   T68] CR2: 000055f9cd596dec CR3: 000000000ec58006 CR4: 0000000000772ef0
[ 1232.503835][   T68] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1232.504134][   T68] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1232.504442][   T68] PKRU: 55555554
[ 1232.504610][   T68] Call Trace:
[ 1232.504772][   T68]  <TASK>
[ 1232.504898][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.505107][ T68] ? __warn (kernel/panic.c:748)
[ 1232.505270][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.505895][ T68] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 1232.506109][ T68] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 1232.506269][ T68] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 1232.506476][ T68] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 1232.506697][ T68] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 1232.506912][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.507123][ T68] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11575)
[ 1232.507400][ T68] ? __netdev_upper_dev_unlink (net/core/dev.c:8180 (discriminator 11))
[ 1232.507656][ T68] ? __pfx___netdev_upper_dev_unlink (net/core/dev.c:8180)
[ 1232.507904][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1232.508148][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1232.508365][ T68] ? unregister_netdevice_queue (net/core/dev.c:11521)
[ 1232.508623][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11520)
[ 1232.508876][ T68] ? netdev_upper_dev_unlink (net/core/dev.c:8219)
[ 1232.509075][ T68] ? __pfx_netdev_upper_dev_unlink (net/core/dev.c:8219)
[ 1232.509336][ T68] macvlan_device_event (drivers/net/macvlan.c:1843) macvlan
[ 1232.509587][ T68] ? __pfx_macvlan_device_event (drivers/net/macvlan.c:1779) macvlan
[ 1232.509836][ T68] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186)
[ 1232.510153][ T68] ? mirred_device_event (./include/linux/spinlock.h:392 net/sched/act_mirred.c:533) act_mirred
[ 1232.510416][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1232.510629][ T68] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1232.510888][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1232.511134][ T68] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 1232.511356][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1232.511560][ T68] ? __pfx_vlan_info_rcu_free (net/8021q/vlan_core.c:145)
[ 1232.511774][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1232.512029][ T68] vlan_device_event (net/8021q/vlan.c:528) 8021q
[ 1232.512285][ T68] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:242 (discriminator 11))
[ 1232.512636][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1232.512850][ T68] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:242 (discriminator 11))
[ 1232.513100][ T68] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 8021q
[ 1232.513367][ T68] ? netconsole_netdev_event (drivers/net/netconsole.c:1082)
[ 1232.513568][ T68] ? packet_notifier (net/packet/af_packet.c:4282)
[ 1232.513777][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1232.513982][ T68] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1232.514225][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1232.514440][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1232.514697][ T68] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:66)
[ 1232.514897][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1232.515109][ T68] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:66)
[ 1232.515419][ T68] ? nexthop_net_exit_batch_rtnl (net/ipv4/nexthop.c:585 net/ipv4/nexthop.c:2158 net/ipv4/nexthop.c:2666 net/ipv4/nexthop.c:4010)
[ 1232.515673][ T68] cleanup_net (net/core/net_namespace.c:648)
[ 1232.515890][ T68] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 1232.516094][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:594)
[ 1232.516395][ T68] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1232.516596][ T68] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1232.516795][ T68] ? process_one_work (kernel/workqueue.c:3205)
[ 1232.517008][ T68] process_one_work (kernel/workqueue.c:3229)
[ 1232.517221][ T68] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 1232.517450][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3131)
[ 1232.517671][ T68] ? assign_work (kernel/workqueue.c:1200)
[ 1232.517875][ T68] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
[ 1232.518162][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1232.518430][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1232.518624][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1232.518914][ T68] kthread (kernel/kthread.c:389)
[ 1232.519070][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1232.519264][ T68] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1232.519472][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1232.519764][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
| [ 1232.533545][   T68] ------------[ cut here ]------------
| [ 1232.533829][ T68] WARNING: CPU: 2 PID: 68 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
| [ 1232.534188][   T68] Modules linked in: macvlan vxlan ip6_udp_tunnel udp_tunnel act_mirred ip6_gre ip6_tunnel tunnel6 cls_matchall ip_gre gre sch_tbf sch_prio act_gact cls_flower dummy sch_ingress bridge stp llc 8021q vrf veth
| [ 1232.535419][   T68] Tainted: [W]=WARN
[ 1232.535640][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1232.535907][   T68] Workqueue: netns cleanup_net
[ 1232.536128][ T68] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.536362][ T68] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 f7 36 ba e8 ca 45 f6 fd e8 05 28 74 00 48 85 db 75 c4 48 83 c4 08 5b 5d c3 cc cc cc cc 90 <0f> 0b 90 eb 8e 48 89 f7 48 89 34 24 e8 b3 da 71 fe 48 8b 34 24 eb
All code
========
   0:	ff 31                	push   (%rcx)
   2:	d2 be 8f 00 00 00    	sarb   %cl,0x8f(%rsi)
   8:	48 c7 c7 80 f7 36 ba 	mov    $0xffffffffba36f780,%rdi
   f:	e8 ca 45 f6 fd       	call   0xfffffffffdf645de
  14:	e8 05 28 74 00       	call   0x74281e
  19:	48 85 db             	test   %rbx,%rbx
  1c:	75 c4                	jne    0xffffffffffffffe2
  1e:	48 83 c4 08          	add    $0x8,%rsp
  22:	5b                   	pop    %rbx
  23:	5d                   	pop    %rbp
  24:	c3                   	ret
  25:	cc                   	int3
  26:	cc                   	int3
  27:	cc                   	int3
  28:	cc                   	int3
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	eb 8e                	jmp    0xffffffffffffffbd
  2f:	48 89 f7             	mov    %rsi,%rdi
  32:	48 89 34 24          	mov    %rsi,(%rsp)
  36:	e8 b3 da 71 fe       	call   0xfffffffffe71daee
  3b:	48 8b 34 24          	mov    (%rsp),%rsi
  3f:	eb                   	.byte 0xeb

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	eb 8e                	jmp    0xffffffffffffff93
   5:	48 89 f7             	mov    %rsi,%rdi
   8:	48 89 34 24          	mov    %rsi,(%rsp)
   c:	e8 b3 da 71 fe       	call   0xfffffffffe71dac4
  11:	48 8b 34 24          	mov    (%rsp),%rsi
  15:	eb                   	.byte 0xeb
[ 1232.537048][   T68] RSP: 0018:ffffc900004974b8 EFLAGS: 00010287
[ 1232.537345][   T68] RAX: ffff88800ed995b0 RBX: ffff8880085fa300 RCX: ffffffffb9aeb8aa
[ 1232.537648][   T68] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88800f5bc178
[ 1232.537949][   T68] RBP: ffff88800f5bc1b8 R08: 0000000000000001 R09: fffff52000092e71
[ 1232.538244][   T68] R10: ffffc9000049738f R11: ffff8880085fa300 R12: ffffc90000497638
[ 1232.538555][   T68] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90000497568
[ 1232.538857][   T68] FS:  0000000000000000(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[ 1232.539208][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1232.539477][   T68] CR2: 000055f9cd596dec CR3: 000000000ec58006 CR4: 0000000000772ef0
[ 1232.539779][   T68] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1232.540085][   T68] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1232.540397][   T68] PKRU: 55555554
[ 1232.540560][   T68] Call Trace:
[ 1232.540726][   T68]  <TASK>
[ 1232.540843][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.541049][ T68] ? __warn (kernel/panic.c:748)
[ 1232.541224][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.541468][ T68] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 1232.541703][ T68] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 1232.541879][ T68] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 1232.542093][ T68] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 1232.542440][ T68] ? __mutex_unlock_slowpath (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4329 ./include/linux/atomic/atomic-long.h:1506 ./include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:913)
[ 1232.542801][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.543119][ T68] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11638)
[ 1232.543400][ T68] ? __netdev_upper_dev_unlink (net/core/dev.c:8180 (discriminator 11))
[ 1232.543672][ T68] ? __pfx___netdev_upper_dev_unlink (net/core/dev.c:8180)
[ 1232.543928][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1232.544184][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1232.544407][ T68] ? unregister_netdevice_queue (net/core/dev.c:11521)
[ 1232.544684][ T68] ? netdev_upper_dev_unlink (net/core/dev.c:8219)
[ 1232.544892][ T68] ? __pfx_netdev_upper_dev_unlink (net/core/dev.c:8219)
[ 1232.545168][ T68] macvlan_device_event (drivers/net/macvlan.c:1843) macvlan
[ 1232.545467][ T68] ? __pfx_macvlan_device_event (drivers/net/macvlan.c:1779) macvlan
[ 1232.545737][ T68] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186)
[ 1232.545949][ T68] ? mirred_device_event (./include/linux/spinlock.h:392 net/sched/act_mirred.c:533) act_mirred
[ 1232.546211][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1232.546458][ T68] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1232.546731][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1232.547001][ T68] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 1232.547226][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1232.547472][ T68] ? __pfx_vlan_info_rcu_free (net/8021q/vlan_core.c:145)
[ 1232.547687][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1232.547951][ T68] vlan_device_event (net/8021q/vlan.c:528) 8021q
[ 1232.548213][ T68] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:242 (discriminator 11))
[ 1232.548490][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1232.548698][ T68] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:242 (discriminator 11))
[ 1232.548954][ T68] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 8021q
[ 1232.549213][ T68] ? netconsole_netdev_event (drivers/net/netconsole.c:1082)
[ 1232.549433][ T68] ? packet_notifier (net/packet/af_packet.c:4282)
[ 1232.549654][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1232.549883][ T68] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1232.550162][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1232.550389][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1232.550649][ T68] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:66)
[ 1232.550875][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1232.551092][ T68] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:66)
[ 1232.551319][ T68] ? nexthop_net_exit_batch_rtnl (net/ipv4/nexthop.c:585 net/ipv4/nexthop.c:2158 net/ipv4/nexthop.c:2666 net/ipv4/nexthop.c:4010)
[ 1232.551585][ T68] cleanup_net (net/core/net_namespace.c:648)
[ 1232.551814][ T68] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 1232.552032][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:594)
[ 1232.552250][ T68] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1232.552482][ T68] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1232.552693][ T68] ? process_one_work (kernel/workqueue.c:3205)
[ 1232.552915][ T68] process_one_work (kernel/workqueue.c:3229)
[ 1232.553145][ T68] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 1232.553384][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3131)
[ 1232.553616][ T68] ? assign_work (kernel/workqueue.c:1200)
[ 1232.553843][ T68] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
[ 1232.554056][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1232.554337][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1232.554541][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1232.554758][ T68] kthread (kernel/kthread.c:389)
[ 1232.554934][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1232.555181][ T68] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1232.555411][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1232.555628][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
| [ 1232.559051][   T68] ------------[ cut here ]------------
| [ 1232.559276][ T68] WARNING: CPU: 2 PID: 68 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
| [ 1232.560487][   T68] Modules linked in: macvlan vxlan ip6_udp_tunnel udp_tunnel act_mirred ip6_gre ip6_tunnel tunnel6 cls_matchall ip_gre gre sch_tbf sch_prio act_gact cls_flower dummy sch_ingress bridge stp llc 8021q vrf veth
| [ 1232.561618][   T68] Tainted: [W]=WARN
[ 1232.561770][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1232.562004][   T68] Workqueue: netns cleanup_net
[ 1232.562213][ T68] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.562416][ T68] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 f7 36 ba e8 ca 45 f6 fd e8 05 28 74 00 48 85 db 75 c4 48 83 c4 08 5b 5d c3 cc cc cc cc 90 <0f> 0b 90 eb 8e 48 89 f7 48 89 34 24 e8 b3 da 71 fe 48 8b 34 24 eb
All code
========
   0:	ff 31                	push   (%rcx)
   2:	d2 be 8f 00 00 00    	sarb   %cl,0x8f(%rsi)
   8:	48 c7 c7 80 f7 36 ba 	mov    $0xffffffffba36f780,%rdi
   f:	e8 ca 45 f6 fd       	call   0xfffffffffdf645de
  14:	e8 05 28 74 00       	call   0x74281e
  19:	48 85 db             	test   %rbx,%rbx
  1c:	75 c4                	jne    0xffffffffffffffe2
  1e:	48 83 c4 08          	add    $0x8,%rsp
  22:	5b                   	pop    %rbx
  23:	5d                   	pop    %rbp
  24:	c3                   	ret
  25:	cc                   	int3
  26:	cc                   	int3
  27:	cc                   	int3
  28:	cc                   	int3
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	eb 8e                	jmp    0xffffffffffffffbd
  2f:	48 89 f7             	mov    %rsi,%rdi
  32:	48 89 34 24          	mov    %rsi,(%rsp)
  36:	e8 b3 da 71 fe       	call   0xfffffffffe71daee
  3b:	48 8b 34 24          	mov    (%rsp),%rsi
  3f:	eb                   	.byte 0xeb

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	eb 8e                	jmp    0xffffffffffffff93
   5:	48 89 f7             	mov    %rsi,%rdi
   8:	48 89 34 24          	mov    %rsi,(%rsp)
   c:	e8 b3 da 71 fe       	call   0xfffffffffe71dac4
  11:	48 8b 34 24          	mov    (%rsp),%rsi
  15:	eb                   	.byte 0xeb
[ 1232.563050][   T68] RSP: 0018:ffffc90000497758 EFLAGS: 00010287
[ 1232.563289][   T68] RAX: ffff88800ed995b0 RBX: ffff8880085fa300 RCX: ffffffffb9aeb8aa
[ 1232.563573][   T68] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88800b88c178
[ 1232.563846][   T68] RBP: ffff88800b88c1b8 R08: 0000000000000001 R09: fffff52000092ec5
[ 1232.564120][   T68] R10: ffffc9000049762f R11: ffff8880085fa300 R12: ffffc900004978d8
[ 1232.564400][   T68] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90000497808
[ 1232.564672][   T68] FS:  0000000000000000(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[ 1232.564993][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1232.565225][   T68] CR2: 000055f9cd596dec CR3: 000000000ec58006 CR4: 0000000000772ef0
[ 1232.565510][   T68] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1232.565775][   T68] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1232.566058][   T68] PKRU: 55555554
[ 1232.566200][   T68] Call Trace:
[ 1232.566358][   T68]  <TASK>
[ 1232.566469][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.566655][ T68] ? __warn (kernel/panic.c:748)
[ 1232.566813][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.567007][ T68] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 1232.567221][ T68] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 1232.567395][ T68] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 1232.567586][ T68] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 1232.567801][ T68] ? __mutex_unlock_slowpath (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4329 ./include/linux/atomic/atomic-long.h:1506 ./include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:913)
[ 1232.567992][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.568189][ T68] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11638)
[ 1232.568438][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1232.568671][ T68] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228)
[ 1232.568874][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1232.569069][ T68] ? __pfx_vlan_info_rcu_free (net/8021q/vlan_core.c:145)
[ 1232.569285][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1232.569537][ T68] vlan_device_event (net/8021q/vlan.c:528) 8021q
[ 1232.569781][ T68] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:242 (discriminator 11))
[ 1232.570034][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1232.570223][ T68] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:242 (discriminator 11))
[ 1232.570466][ T68] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 8021q
[ 1232.570719][ T68] ? netconsole_netdev_event (drivers/net/netconsole.c:1082)
[ 1232.570907][ T68] ? packet_notifier (net/packet/af_packet.c:4282)
[ 1232.571098][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1232.571290][ T68] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1232.571529][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1232.571715][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1232.571941][ T68] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:66)
[ 1232.572138][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1232.572345][ T68] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:66)
[ 1232.572529][ T68] ? nexthop_net_exit_batch_rtnl (net/ipv4/nexthop.c:585 net/ipv4/nexthop.c:2158 net/ipv4/nexthop.c:2666 net/ipv4/nexthop.c:4010)
[ 1232.572762][ T68] cleanup_net (net/core/net_namespace.c:648)
[ 1232.572952][ T68] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 1232.573135][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:594)
[ 1232.573335][ T68] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1232.573538][ T68] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1232.573722][ T68] ? process_one_work (kernel/workqueue.c:3205)
[ 1232.573911][ T68] process_one_work (kernel/workqueue.c:3229)
[ 1232.574106][ T68] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 1232.574292][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3131)
[ 1232.574503][ T68] ? assign_work (kernel/workqueue.c:1200)
[ 1232.574693][ T68] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
[ 1232.574890][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1232.575126][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1232.575338][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1232.575524][ T68] kthread (kernel/kthread.c:389)
[ 1232.575670][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1232.575861][ T68] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1232.576043][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1232.576235][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
| [ 1232.613762][   T68] ------------[ cut here ]------------
| [ 1232.614051][ T68] WARNING: CPU: 2 PID: 68 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
| [ 1232.614403][   T68] Modules linked in: macvlan vxlan ip6_udp_tunnel udp_tunnel act_mirred ip6_gre ip6_tunnel tunnel6 cls_matchall ip_gre gre sch_tbf sch_prio act_gact cls_flower dummy sch_ingress bridge stp llc 8021q vrf veth
| [ 1232.615565][   T68] Tainted: [W]=WARN
[ 1232.615695][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1232.615905][   T68] Workqueue: netns cleanup_net
[ 1232.616092][ T68] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.616333][ T68] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 f7 36 ba e8 ca 45 f6 fd e8 05 28 74 00 48 85 db 75 c4 48 83 c4 08 5b 5d c3 cc cc cc cc 90 <0f> 0b 90 eb 8e 48 89 f7 48 89 34 24 e8 b3 da 71 fe 48 8b 34 24 eb
All code
========
   0:	ff 31                	push   (%rcx)
   2:	d2 be 8f 00 00 00    	sarb   %cl,0x8f(%rsi)
   8:	48 c7 c7 80 f7 36 ba 	mov    $0xffffffffba36f780,%rdi
   f:	e8 ca 45 f6 fd       	call   0xfffffffffdf645de
  14:	e8 05 28 74 00       	call   0x74281e
  19:	48 85 db             	test   %rbx,%rbx
  1c:	75 c4                	jne    0xffffffffffffffe2
  1e:	48 83 c4 08          	add    $0x8,%rsp
  22:	5b                   	pop    %rbx
  23:	5d                   	pop    %rbp
  24:	c3                   	ret
  25:	cc                   	int3
  26:	cc                   	int3
  27:	cc                   	int3
  28:	cc                   	int3
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	eb 8e                	jmp    0xffffffffffffffbd
  2f:	48 89 f7             	mov    %rsi,%rdi
  32:	48 89 34 24          	mov    %rsi,(%rsp)
  36:	e8 b3 da 71 fe       	call   0xfffffffffe71daee
  3b:	48 8b 34 24          	mov    (%rsp),%rsi
  3f:	eb                   	.byte 0xeb

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	eb 8e                	jmp    0xffffffffffffff93
   5:	48 89 f7             	mov    %rsi,%rdi
   8:	48 89 34 24          	mov    %rsi,(%rsp)
   c:	e8 b3 da 71 fe       	call   0xfffffffffe71dac4
  11:	48 8b 34 24          	mov    (%rsp),%rsi
  15:	eb                   	.byte 0xeb
[ 1232.616878][   T68] RSP: 0018:ffffc90000497a60 EFLAGS: 00010287
[ 1232.617102][   T68] RAX: ffff88800217c5b0 RBX: ffff8880085fa300 RCX: ffffffffb9aeb8aa
[ 1232.617407][   T68] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff888012412178
[ 1232.617643][   T68] RBP: ffff8880124121b8 R08: 0000000000000001 R09: fffff52000092f26
[ 1232.617936][   T68] R10: ffffc90000497937 R11: ffff8880085fa300 R12: ffffc90000497be0
[ 1232.618200][   T68] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90000497b10
[ 1232.618463][   T68] FS:  0000000000000000(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[ 1232.618732][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1232.618957][   T68] CR2: 000055f9cd596dec CR3: 000000000ec58006 CR4: 0000000000772ef0
[ 1232.619270][   T68] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1232.619622][   T68] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1232.619861][   T68] PKRU: 55555554
[ 1232.619989][   T68] Call Trace:
[ 1232.620130][   T68]  <TASK>
[ 1232.620238][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.620434][ T68] ? __warn (kernel/panic.c:748)
[ 1232.620575][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.620738][ T68] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 1232.620912][ T68] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 1232.621041][ T68] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 1232.621224][ T68] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 1232.621436][ T68] ? __mutex_unlock_slowpath (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4329 ./include/linux/atomic/atomic-long.h:1506 ./include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:913)
[ 1232.621624][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1232.621801][ T68] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11638)
[ 1232.622004][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1232.622202][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1232.622467][ T68] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:66)
[ 1232.622636][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1232.622812][ T68] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.h:47 kernel/locking/mutex.c:66)
[ 1232.622976][ T68] ? nexthop_net_exit_batch_rtnl (net/ipv4/nexthop.c:585 net/ipv4/nexthop.c:2158 net/ipv4/nexthop.c:2666 net/ipv4/nexthop.c:4010)
[ 1232.623204][ T68] cleanup_net (net/core/net_namespace.c:648)
[ 1232.623402][ T68] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 1232.623566][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:594)
[ 1232.623731][ T68] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1232.623895][ T68] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1232.624056][ T68] ? process_one_work (kernel/workqueue.c:3205)
[ 1232.624239][ T68] process_one_work (kernel/workqueue.c:3229)
[ 1232.624434][ T68] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 1232.624597][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3131)
[ 1232.624769][ T68] ? assign_work (kernel/workqueue.c:1200)
[ 1232.624940][ T68] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
[ 1232.625119][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1232.625357][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1232.625606][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1232.625874][ T68] kthread (kernel/kthread.c:389)
[ 1232.626081][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1232.626372][ T68] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1232.626633][ T68] ? __pfx_kthread (kernel/kthread.c:342)


Finger prints:
__rtnl_unlock:unregister_netdevice_many_notify:cleanup_net:process_one_work:worker_thread
__rtnl_unlock:unregister_netdevice_many_notify:macvlan_device_event:notifier_call_chain:unregister_netdevice_many_notify
__rtnl_unlock:unregister_netdevice_many_notify:vlan_device_event:notifier_call_chain:unregister_netdevice_many_notify