======================================
| [ 1396.742349][   T68] br1: port 1(vx10) entered disabled state
| [ 1396.883440][   T68] ------------[ cut here ]------------
| [ 1396.883669][ T68] WARNING: CPU: 0 PID: 68 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
| [ 1396.884009][   T68] Modules linked in: macvlan dummy act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 act_pedit act_mirred 8021q ip6_gre ip6_tunnel tunnel6 cls_matchall ip_gre gre act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc sch_ingress vrf veth
[ 1396.885451][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1396.885673][   T68] Workqueue: netns cleanup_net
[ 1396.885849][ T68] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.886022][ T68] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 f7 76 99 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 76 99 	mov    $0xffffffff9976f780,%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
[ 1396.886690][   T68] RSP: 0000:ffffc900004974b8 EFLAGS: 00010287
[ 1396.886906][   T68] RAX: ffff88800eec95b0 RBX: ffff888008d4a300 RCX: ffffffff967c50a8
[ 1396.887149][   T68] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff888009629178
[ 1396.887467][   T68] RBP: dffffc0000000000 R08: ffff888009629130 R09: ffffed100130a6bc
[ 1396.887733][   T68] R10: ffff8880098535e3 R11: dffffc0000000000 R12: ffffc90000497638
[ 1396.887977][   T68] R13: ffffc900004976a8 R14: dffffc0000000000 R15: ffffc900004976a8
[ 1396.888303][   T68] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[ 1396.888606][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1396.888818][   T68] CR2: 00007f59d96b9ff0 CR3: 000000000d596001 CR4: 0000000000772ef0
[ 1396.889070][   T68] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1396.889401][   T68] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1396.889722][   T68] PKRU: 55555554
[ 1396.889851][   T68] Call Trace:
[ 1396.889980][   T68]  <TASK>
[ 1396.890068][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.890320][ T68] ? __warn (kernel/panic.c:748)
[ 1396.890457][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.890621][ T68] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 1396.890788][ T68] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 1396.890916][ T68] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 1396.891078][ T68] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 1396.891324][ 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)
[ 1396.891495][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.891669][ T68] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11575)
[ 1396.891893][ T68] ? __netdev_upper_dev_unlink (net/core/dev.c:8180 (discriminator 11))
[ 1396.892121][ T68] ? __pfx___netdev_upper_dev_unlink (net/core/dev.c:8180)
[ 1396.892410][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1396.892623][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1396.892783][ T68] ? unregister_netdevice_queue (net/core/dev.c:11521)
[ 1396.892986][ T68] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11520)
[ 1396.893194][ T68] ? find_held_lock (kernel/locking/lockdep.c:5339)
[ 1396.893444][ T68] ? netdev_upper_dev_unlink (net/core/dev.c:8219)
[ 1396.893628][ T68] ? __pfx_netdev_upper_dev_unlink (net/core/dev.c:8219)
[ 1396.893878][ T68] macvlan_device_event (drivers/net/macvlan.c:1843) macvlan
[ 1396.894109][ T68] ? __pfx_macvlan_device_event (drivers/net/macvlan.c:1779) macvlan
[ 1396.894394][ T68] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186)
[ 1396.894569][ T68] ? mirred_device_event (./include/linux/spinlock.h:392 net/sched/act_mirred.c:533) act_mirred
[ 1396.894790][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1396.894982][ T68] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1396.895322][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1396.895557][ 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)
[ 1396.895746][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1396.895931][ T68] ? __pfx_vlan_info_rcu_free (net/8021q/vlan_core.c:145)
[ 1396.896119][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1396.896430][ T68] vlan_device_event (net/8021q/vlan.c:528) 8021q
[ 1396.896672][ T68] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 8021q
[ 1396.896902][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4737) vxlan
[ 1396.897144][ T68] ? packet_notifier (net/packet/af_packet.c:4282)
[ 1396.897413][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1396.897609][ T68] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1396.897832][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1396.898017][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1396.898317][ 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)
[ 1396.898496][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1396.898703][ 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)
[ 1396.898890][ 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)
[ 1396.899124][ T68] cleanup_net (net/core/net_namespace.c:648)
[ 1396.899382][ T68] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 1396.899567][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:594)
[ 1396.899749][ T68] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1396.899929][ T68] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1396.900108][ T68] ? process_one_work (kernel/workqueue.c:3205)
[ 1396.900370][ T68] process_one_work (kernel/workqueue.c:3229)
[ 1396.900565][ T68] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 1396.900748][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3131)
[ 1396.900941][ T68] ? assign_work (kernel/workqueue.c:1200)
[ 1396.901129][ T68] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
[ 1396.901386][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1396.901620][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1396.901802][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1396.901986][ T68] kthread (kernel/kthread.c:389)
[ 1396.902124][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1396.902388][ T68] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1396.902572][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1396.902749][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
| [ 1396.925446][   T68] ------------[ cut here ]------------
| [ 1396.925642][ T68] WARNING: CPU: 1 PID: 68 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
| [ 1396.925930][   T68] Modules linked in: macvlan dummy act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 act_pedit act_mirred 8021q ip6_gre ip6_tunnel tunnel6 cls_matchall ip_gre gre act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc sch_ingress vrf veth
| [ 1396.927154][   T68] Tainted: [W]=WARN
[ 1396.927299][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1396.927499][   T68] Workqueue: netns cleanup_net
[ 1396.927674][ T68] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.927841][ T68] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 f7 76 99 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 76 99 	mov    $0xffffffff9976f780,%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
[ 1396.928412][   T68] RSP: 0018:ffffc900004974b8 EFLAGS: 00010287
[ 1396.928615][   T68] RAX: ffff88800eec95b0 RBX: ffff888008d4a300 RCX: ffffffff98eeb8aa
[ 1396.928861][   T68] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff888009629178
[ 1396.929111][   T68] RBP: ffff8880096291b8 R08: 0000000000000001 R09: fffff52000092e71
[ 1396.929359][   T68] R10: ffffc9000049738f R11: ffff888008d4a300 R12: ffffc90000497638
[ 1396.929596][   T68] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90000497568
[ 1396.929837][   T68] FS:  0000000000000000(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[ 1396.930123][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1396.930331][   T68] CR2: 00000000004060bb CR3: 000000000dd78002 CR4: 0000000000772ef0
[ 1396.930569][   T68] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1396.930815][   T68] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1396.931051][   T68] PKRU: 55555554
[ 1396.931182][   T68] Call Trace:
[ 1396.931318][   T68]  <TASK>
[ 1396.931403][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.931563][ T68] ? __warn (kernel/panic.c:748)
[ 1396.931691][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.931853][ T68] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 1396.932027][ T68] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 1396.932157][ T68] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 1396.932398][ T68] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 1396.932573][ 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)
[ 1396.932738][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.932903][ T68] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11638)
[ 1396.933118][ T68] ? __netdev_upper_dev_unlink (net/core/dev.c:8180 (discriminator 11))
[ 1396.933404][ T68] ? __pfx___netdev_upper_dev_unlink (net/core/dev.c:8180)
[ 1396.933605][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1396.933818][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1396.933979][ T68] ? unregister_netdevice_queue (net/core/dev.c:11521)
[ 1396.934268][ T68] ? netdev_upper_dev_unlink (net/core/dev.c:8219)
[ 1396.934433][ T68] ? __pfx_netdev_upper_dev_unlink (net/core/dev.c:8219)
[ 1396.934643][ T68] macvlan_device_event (drivers/net/macvlan.c:1843) macvlan
[ 1396.934848][ T68] ? __pfx_macvlan_device_event (drivers/net/macvlan.c:1779) macvlan
[ 1396.935054][ T68] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186)
[ 1396.935278][ T68] ? mirred_device_event (./include/linux/spinlock.h:392 net/sched/act_mirred.c:533) act_mirred
[ 1396.935486][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1396.935657][ T68] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1396.935868][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1396.936081][ 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)
[ 1396.936262][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1396.936428][ T68] ? __pfx_vlan_info_rcu_free (net/8021q/vlan_core.c:145)
[ 1396.936590][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1396.936802][ T68] vlan_device_event (net/8021q/vlan.c:528) 8021q
[ 1396.937016][ T68] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 8021q
[ 1396.937253][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4737) vxlan
[ 1396.937474][ T68] ? packet_notifier (net/packet/af_packet.c:4282)
[ 1396.937645][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1396.937817][ T68] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1396.938019][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1396.938207][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1396.938408][ 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)
[ 1396.938575][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1396.938747][ 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)
[ 1396.938909][ 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)
[ 1396.939115][ T68] cleanup_net (net/core/net_namespace.c:648)
[ 1396.939287][ T68] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 1396.939448][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:594)
[ 1396.939609][ T68] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1396.939778][ T68] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1396.939937][ T68] ? process_one_work (kernel/workqueue.c:3205)
[ 1396.940105][ T68] process_one_work (kernel/workqueue.c:3229)
[ 1396.940286][ T68] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 1396.940449][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3131)
[ 1396.940619][ T68] ? assign_work (kernel/workqueue.c:1200)
[ 1396.940790][ T68] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
[ 1396.940951][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1396.941160][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1396.941335][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1396.941497][ T68] kthread (kernel/kthread.c:389)
[ 1396.941624][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1396.941789][ T68] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1396.941950][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1396.942112][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
| [ 1396.954864][   T68] ------------[ cut here ]------------
| [ 1396.955055][ T68] WARNING: CPU: 0 PID: 68 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
| [ 1396.955348][   T68] Modules linked in: macvlan dummy act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 act_pedit act_mirred 8021q ip6_gre ip6_tunnel tunnel6 cls_matchall ip_gre gre act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc sch_ingress vrf veth
| [ 1396.956503][   T68] Tainted: [W]=WARN
[ 1396.956619][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1396.956812][   T68] Workqueue: netns cleanup_net
[ 1396.956976][ T68] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.957139][ T68] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 f7 76 99 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 76 99 	mov    $0xffffffff9976f780,%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
[ 1396.957679][   T68] RSP: 0000:ffffc90000497758 EFLAGS: 00010287
[ 1396.957880][   T68] RAX: ffff88800eec95b0 RBX: ffff888008d4a300 RCX: ffffffff98eeb8aa
[ 1396.958113][   T68] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88801c17c178
[ 1396.958352][   T68] RBP: ffff88801c17c1b8 R08: 0000000000000001 R09: fffff52000092ec5
[ 1396.958583][   T68] R10: ffffc9000049762f R11: ffff888008d4a300 R12: ffffc900004978d8
[ 1396.958808][   T68] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90000497808
[ 1396.959043][   T68] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[ 1396.959331][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1396.959528][   T68] CR2: 00007f59d96b9ff0 CR3: 000000000d596001 CR4: 0000000000772ef0
[ 1396.959760][   T68] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1396.959992][   T68] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1396.960233][   T68] PKRU: 55555554
[ 1396.960352][   T68] Call Trace:
[ 1396.960470][   T68]  <TASK>
[ 1396.960553][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.960710][ T68] ? __warn (kernel/panic.c:748)
[ 1396.960843][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.961002][ T68] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 1396.961164][ T68] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 1396.961316][ T68] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 1396.961471][ T68] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 1396.961636][ 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)
[ 1396.961793][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1396.961952][ T68] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11638)
[ 1396.962154][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1396.962366][ 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)
[ 1396.962530][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1396.962688][ T68] ? __pfx_vlan_info_rcu_free (net/8021q/vlan_core.c:145)
[ 1396.962844][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1396.963042][ T68] vlan_device_event (net/8021q/vlan.c:528) 8021q
[ 1396.963264][ T68] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 8021q
[ 1396.963463][ T68] ? __pfx_vxlan_netdevice_event (drivers/net/vxlan/vxlan_core.c:4737) vxlan
[ 1396.963677][ T68] ? packet_notifier (net/packet/af_packet.c:4282)
[ 1396.963891][ T68] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1396.964067][ T68] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1396.964274][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1396.964435][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1396.964631][ 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)
[ 1396.964791][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1396.964964][ 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)
[ 1396.965118][ 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)
[ 1396.965326][ T68] cleanup_net (net/core/net_namespace.c:648)
[ 1396.965492][ T68] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 1396.965648][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:594)
[ 1396.965803][ T68] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1396.965967][ T68] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1396.966121][ T68] ? process_one_work (kernel/workqueue.c:3205)
[ 1396.966298][ T68] process_one_work (kernel/workqueue.c:3229)
[ 1396.966462][ T68] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 1396.966618][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3131)
[ 1396.966785][ T68] ? assign_work (kernel/workqueue.c:1200)
[ 1396.966944][ T68] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
[ 1396.967102][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1396.967312][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1396.967487][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1396.967643][ T68] kthread (kernel/kthread.c:389)
[ 1396.967762][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1396.968147][ T68] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1396.968317][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1396.968471][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
| [ 1396.999455][   T68] ------------[ cut here ]------------
| [ 1396.999707][ T68] WARNING: CPU: 1 PID: 68 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
| [ 1396.999961][   T68] Modules linked in: macvlan dummy act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 act_pedit act_mirred 8021q ip6_gre ip6_tunnel tunnel6 cls_matchall ip_gre gre act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc sch_ingress vrf veth
| [ 1397.001058][   T68] Tainted: [W]=WARN
[ 1397.001169][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1397.001493][   T68] Workqueue: netns cleanup_net
[ 1397.001648][ T68] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1397.001804][ T68] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 f7 76 99 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 76 99 	mov    $0xffffffff9976f780,%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
[ 1397.002311][   T68] RSP: 0018:ffffc90000497a60 EFLAGS: 00010287
[ 1397.002493][   T68] RAX: ffff88801b4dc5b0 RBX: ffff888008d4a300 RCX: ffffffff98eeb8aa
[ 1397.002709][   T68] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88801c2ba178
[ 1397.002929][   T68] RBP: ffff88801c2ba1b8 R08: 0000000000000001 R09: fffff52000092f26
[ 1397.003140][   T68] R10: ffffc90000497937 R11: ffff888008d4a300 R12: ffffc90000497be0
[ 1397.003359][   T68] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90000497b10
[ 1397.003569][   T68] FS:  0000000000000000(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[ 1397.003833][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1397.004015][   T68] CR2: 00000000004060bb CR3: 000000000dd78002 CR4: 0000000000772ef0
[ 1397.004242][   T68] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1397.004456][   T68] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1397.004674][   T68] PKRU: 55555554
[ 1397.004784][   T68] Call Trace:
[ 1397.004896][   T68]  <TASK>
[ 1397.004973][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1397.005118][ T68] ? __warn (kernel/panic.c:748)
[ 1397.005242][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1397.005391][ T68] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 1397.005545][ T68] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 1397.005657][ T68] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 1397.005810][ T68] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 1397.005965][ 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)
[ 1397.006114][ T68] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1397.006271][ T68] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11638)
[ 1397.006457][ T68] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1397.006608][ T68] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1397.006789][ 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)
[ 1397.006940][ T68] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1397.007102][ 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)
[ 1397.007258][ 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)
[ 1397.007443][ T68] cleanup_net (net/core/net_namespace.c:648)
[ 1397.007589][ T68] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 1397.007737][ T68] ? __pfx_cleanup_net (net/core/net_namespace.c:594)
[ 1397.007884][ T68] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1397.008041][ T68] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1397.008184][ T68] ? process_one_work (kernel/workqueue.c:3205)
[ 1397.008349][ T68] process_one_work (kernel/workqueue.c:3229)
[ 1397.008504][ T68] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 1397.008651][ T68] ? __pfx_process_one_work (kernel/workqueue.c:3131)
[ 1397.008807][ T68] ? assign_work (kernel/workqueue.c:1200)
[ 1397.008958][ T68] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
[ 1397.009103][ T68] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1397.009302][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1397.009458][ T68] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1397.009601][ T68] kthread (kernel/kthread.c:389)
[ 1397.009713][ T68] ? __pfx_kthread (kernel/kthread.c:342)
[ 1397.009861][ T68] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1397.010009][ 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