======================================
| [ 1263.961919][   T66] br1: port 1(vx10) entered disabled state
| [ 1264.071514][   T66] ------------[ cut here ]------------
| [ 1264.071773][ T66] WARNING: CPU: 2 PID: 66 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
| [ 1264.072116][   T66] Modules linked in: macvlan vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q vrf veth
[ 1264.072857][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1264.073106][   T66] Workqueue: netns cleanup_net
[ 1264.073301][ T66] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.073501][ T66] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 f7 96 8e 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 96 8e 	mov    $0xffffffff8e96f780,%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
[ 1264.074111][   T66] RSP: 0018:ffffc900004774b8 EFLAGS: 00010287
[ 1264.074350][   T66] RAX: ffff88800dff95b0 RBX: ffff888005ec45c0 RCX: ffffffff8b9c50a8
[ 1264.074614][   T66] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff888008ac1178
[ 1264.074887][   T66] RBP: dffffc0000000000 R08: ffff888008ac1130 R09: ffffed10025b906c
[ 1264.075170][   T66] R10: ffff888012dc8363 R11: dffffc0000000000 R12: ffffc90000477638
[ 1264.075435][   T66] R13: ffffc900004776a8 R14: dffffc0000000000 R15: ffffc900004776a8
[ 1264.075693][   T66] FS:  0000000000000000(0000) GS:ffff88802f700000(0000) knlGS:0000000000000000
[ 1264.076003][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1264.076238][   T66] CR2: 00007f3de72c1430 CR3: 000000000f424003 CR4: 0000000000772ef0
[ 1264.076502][   T66] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1264.076764][   T66] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1264.077026][   T66] PKRU: 55555554
[ 1264.077184][   T66] Call Trace:
[ 1264.077338][   T66]  <TASK>
[ 1264.077449][ T66] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.077634][ T66] ? __warn (kernel/panic.c:748)
[ 1264.077781][ T66] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.077971][ T66] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 1264.078177][ T66] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 1264.078325][ T66] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 1264.078504][ T66] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 1264.078695][ T66] ? 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)
[ 1264.078884][ T66] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.079083][ T66] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11575)
[ 1264.079316][ T66] ? __netdev_upper_dev_unlink (net/core/dev.c:8180 (discriminator 11))
[ 1264.079538][ T66] ? __pfx___netdev_upper_dev_unlink (net/core/dev.c:8180)
[ 1264.079752][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1264.079969][ T66] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1264.080159][ T66] ? unregister_netdevice_queue (net/core/dev.c:11521)
[ 1264.080387][ T66] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11520)
[ 1264.080605][ T66] ? netdev_upper_dev_unlink (net/core/dev.c:8219)
[ 1264.080789][ T66] ? __pfx_netdev_upper_dev_unlink (net/core/dev.c:8219)
[ 1264.081029][ T66] macvlan_device_event (drivers/net/macvlan.c:1843) macvlan
[ 1264.081272][ T66] ? br_device_event (./include/linux/netdevice.h:5263 net/bridge/br_private.h:458 net/bridge/br.c:62) bridge
[ 1264.081511][ T66] ? __pfx_macvlan_device_event (drivers/net/macvlan.c:1779) macvlan
[ 1264.081746][ T66] ? cycle_netdev (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/netdevice.h:3764 drivers/net/vrf.c:1049) vrf
[ 1264.081935][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1264.082139][ T66] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1264.082371][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1264.082600][ T66] ? 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)
[ 1264.082785][ T66] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1264.082976][ T66] ? __pfx_vlan_info_rcu_free (net/8021q/vlan_core.c:145)
[ 1264.083176][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1264.083407][ T66] vlan_device_event (net/8021q/vlan.c:528) 8021q
[ 1264.083636][ T66] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:242 (discriminator 11))
[ 1264.083855][ T66] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1264.084030][ T66] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:242 (discriminator 11))
[ 1264.084258][ T66] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 8021q
[ 1264.084484][ T66] ? netconsole_netdev_event (drivers/net/netconsole.c:1082)
[ 1264.084672][ T66] ? packet_notifier (net/packet/af_packet.c:4282)
[ 1264.084860][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1264.085051][ T66] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1264.085286][ T66] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1264.085502][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1264.085743][ T66] ? 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)
[ 1264.085938][ T66] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1264.086147][ T66] ? 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)
[ 1264.086326][ T66] ? 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)
[ 1264.086563][ T66] cleanup_net (net/core/net_namespace.c:648)
[ 1264.086744][ T66] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 1264.087104][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:594)
[ 1264.087291][ T66] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1264.087478][ T66] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1264.087680][ T66] ? process_one_work (kernel/workqueue.c:3205)
[ 1264.087877][ T66] process_one_work (kernel/workqueue.c:3229)
[ 1264.088077][ T66] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 1264.088256][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3131)
[ 1264.088444][ T66] ? assign_work (kernel/workqueue.c:1200)
[ 1264.088729][ T66] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
[ 1264.088911][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1264.089157][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1264.089341][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1264.089619][ T66] kthread (kernel/kthread.c:389)
[ 1264.089864][ T66] ? __pfx_kthread (kernel/kthread.c:342)
[ 1264.090055][ T66] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1264.090348][ T66] ? __pfx_kthread (kernel/kthread.c:342)
[ 1264.090532][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
| [ 1264.115432][   T66] ------------[ cut here ]------------
| [ 1264.115668][ T66] WARNING: CPU: 2 PID: 66 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
| [ 1264.115958][   T66] Modules linked in: macvlan vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q vrf veth
| [ 1264.116811][   T66] Tainted: [W]=WARN
[ 1264.117007][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1264.117229][   T66] Workqueue: netns cleanup_net
[ 1264.117407][ T66] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.117581][ T66] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 f7 96 8e 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 96 8e 	mov    $0xffffffff8e96f780,%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
[ 1264.118136][   T66] RSP: 0018:ffffc90000477758 EFLAGS: 00010287
[ 1264.118347][   T66] RAX: ffff888008ac15b0 RBX: ffff888005ec45c0 RCX: ffffffff8e0eb8aa
[ 1264.118589][   T66] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff888010301178
[ 1264.118833][   T66] RBP: ffff8880103011b8 R08: 0000000000000001 R09: fffff5200008eec5
[ 1264.119094][   T66] R10: ffffc9000047762f R11: ffff888005ec45c0 R12: ffffc900004778d8
[ 1264.119337][   T66] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90000477808
[ 1264.119577][   T66] FS:  0000000000000000(0000) GS:ffff88802f700000(0000) knlGS:0000000000000000
[ 1264.119858][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1264.120078][   T66] CR2: 0000555ed82451e8 CR3: 000000000f424003 CR4: 0000000000772ef0
[ 1264.120347][   T66] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1264.120591][   T66] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1264.120838][   T66] PKRU: 55555554
[ 1264.120983][   T66] Call Trace:
[ 1264.121128][   T66]  <TASK>
[ 1264.121225][ T66] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.121402][ T66] ? __warn (kernel/panic.c:748)
[ 1264.121542][ T66] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.121716][ T66] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 1264.121892][ T66] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 1264.122027][ T66] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 1264.122208][ T66] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 1264.122393][ T66] ? __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)
[ 1264.122574][ T66] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.122758][ T66] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11638)
[ 1264.122975][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1264.123197][ T66] ? 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)
[ 1264.123376][ T66] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1264.123546][ T66] ? __pfx_vlan_info_rcu_free (net/8021q/vlan_core.c:145)
[ 1264.123716][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1264.123928][ T66] vlan_device_event (net/8021q/vlan.c:528) 8021q
[ 1264.124159][ T66] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:242 (discriminator 11))
[ 1264.124365][ T66] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1264.124534][ T66] ? netconsole_process_cleanups_core (drivers/net/netconsole.c:242 (discriminator 11))
[ 1264.124746][ T66] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 8021q
[ 1264.124960][ T66] ? netconsole_netdev_event (drivers/net/netconsole.c:1082)
[ 1264.125142][ T66] ? packet_notifier (net/packet/af_packet.c:4282)
[ 1264.125327][ T66] notifier_call_chain (kernel/notifier.c:85 (discriminator 2))
[ 1264.125507][ T66] unregister_netdevice_many_notify (net/core/dev.c:11597)
[ 1264.125718][ T66] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1264.125896][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1264.126115][ T66] ? 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)
[ 1264.126288][ T66] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1264.126472][ T66] ? 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)
[ 1264.126641][ T66] ? 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)
[ 1264.126867][ T66] cleanup_net (net/core/net_namespace.c:648)
[ 1264.127037][ T66] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 1264.127219][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:594)
[ 1264.127388][ T66] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1264.127566][ T66] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1264.127738][ T66] ? process_one_work (kernel/workqueue.c:3205)
[ 1264.127921][ T66] process_one_work (kernel/workqueue.c:3229)
[ 1264.128115][ T66] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 1264.128291][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3131)
[ 1264.128467][ T66] ? assign_work (kernel/workqueue.c:1200)
[ 1264.128643][ T66] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
[ 1264.128811][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1264.129028][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1264.129208][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1264.129381][ T66] kthread (kernel/kthread.c:389)
[ 1264.129516][ T66] ? __pfx_kthread (kernel/kthread.c:342)
[ 1264.129684][ T66] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1264.129856][ T66] ? __pfx_kthread (kernel/kthread.c:342)
[ 1264.130028][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
| [ 1264.165532][   T66] ------------[ cut here ]------------
| [ 1264.165783][ T66] WARNING: CPU: 2 PID: 66 at net/core/rtnetlink.c:135 __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
| [ 1264.166103][   T66] Modules linked in: macvlan vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q vrf veth
| [ 1264.166828][   T66] Tainted: [W]=WARN
[ 1264.166987][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1264.167326][   T66] Workqueue: netns cleanup_net
[ 1264.167592][ T66] RIP: 0010:__rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.167835][ T66] Code: ff 31 d2 be 8f 00 00 00 48 c7 c7 80 f7 96 8e 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 96 8e 	mov    $0xffffffff8e96f780,%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
[ 1264.168440][   T66] RSP: 0018:ffffc90000477a60 EFLAGS: 00010287
[ 1264.168663][   T66] RAX: ffff888008fb15b0 RBX: ffff888005ec45c0 RCX: ffffffff8e0eb8aa
[ 1264.168929][   T66] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88801018a178
[ 1264.169217][   T66] RBP: ffff88801018a1b8 R08: 0000000000000001 R09: fffff5200008ef26
[ 1264.169489][   T66] R10: ffffc90000477937 R11: ffff888005ec45c0 R12: ffffc90000477be0
[ 1264.169767][   T66] R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90000477b10
[ 1264.170037][   T66] FS:  0000000000000000(0000) GS:ffff88802f700000(0000) knlGS:0000000000000000
[ 1264.170359][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1264.170593][   T66] CR2: 00007f3e4cfcdbd0 CR3: 000000000a96c002 CR4: 0000000000772ef0
[ 1264.170867][   T66] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1264.171162][   T66] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1264.171415][   T66] PKRU: 55555554
[ 1264.171549][   T66] Call Trace:
[ 1264.171685][   T66]  <TASK>
[ 1264.171782][ T66] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.171961][ T66] ? __warn (kernel/panic.c:748)
[ 1264.172127][ T66] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.172306][ T66] ? report_bug (lib/bug.c:201 lib/bug.c:219)
[ 1264.172489][ T66] ? handle_bug (arch/x86/kernel/traps.c:285)
[ 1264.172627][ T66] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
[ 1264.172811][ T66] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 1264.172996][ T66] ? __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)
[ 1264.173194][ T66] ? __rtnl_unlock (net/core/rtnetlink.c:135 (discriminator 1))
[ 1264.173379][ T66] unregister_netdevice_many_notify (net/core/dev.c:11453 net/core/dev.c:11638)
[ 1264.173600][ T66] ? mark_held_locks (kernel/locking/lockdep.c:4321)
[ 1264.173780][ T66] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11536)
[ 1264.173999][ T66] ? 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)
[ 1264.174190][ T66] ? rtnl_is_locked (net/core/rtnetlink.c:163)
[ 1264.174378][ T66] ? 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)
[ 1264.174558][ T66] ? 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)
[ 1264.174782][ T66] cleanup_net (net/core/net_namespace.c:648)
[ 1264.174962][ T66] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814)
[ 1264.175152][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:594)
[ 1264.175329][ T66] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 37))
[ 1264.175517][ T66] ? lock_acquire (kernel/locking/lockdep.c:5822)
[ 1264.175695][ T66] ? process_one_work (kernel/workqueue.c:3205)
[ 1264.175878][ T66] process_one_work (kernel/workqueue.c:3229)
[ 1264.176081][ T66] ? __pfx___lock_release (kernel/locking/lockdep.c:5501)
[ 1264.176261][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3131)
[ 1264.176446][ T66] ? assign_work (kernel/workqueue.c:1200)
[ 1264.176633][ T66] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
[ 1264.176813][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4347 kernel/locking/lockdep.c:4406)
[ 1264.177033][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1264.177220][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3337)
[ 1264.177403][ T66] kthread (kernel/kthread.c:389)
[ 1264.177543][ T66] ? __pfx_kthread (kernel/kthread.c:342)
[ 1264.177726][ T66] ret_from_fork (arch/x86/kernel/process.c:147)
[ 1264.177905][ T66] ? __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