======================================
| xx__-> [    8.780006][  T175] ------------[ cut here ]------------
| [    8.780223][  T175] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/175
| [    8.780466][  T175] Modules linked in:
| [    8.780929][  T175] Tainted: [W]=WARN
[    8.781032][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.781203][  T175] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.781382][  T175] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.782469][  T175] RSP: 0018:ffa00000008d7ab0 EFLAGS: 00010286
[    8.782689][  T175] RAX: 00000000ffffffa6 RBX: ff1100000a830ac0 RCX: 1ff400000011af1c
[    8.782894][  T175] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a830b78
[    8.783097][  T175] RBP: ff1100000a1dc000 R08: 1fe2200001506170 R09: ff11000013f9ae80
[    8.783299][  T175] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.783501][  T175] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a1dc000
[    8.783718][  T175] FS:  00007f3eefd34840(0000) GS:ff11000084cc3000(0000) knlGS:0000000000000000
[    8.783956][  T175] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.784127][  T175] CR2: 0000000000479648 CR3: 0000000013efc001 CR4: 0000000000771ef0
[    8.784332][  T175] PKRU: 55555554
[    8.784433][  T175] Call Trace:
[    8.784535][  T175]  <TASK>
[    8.784611][  T175]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.784754][  T175]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.784898][  T175]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.785001][  T175]  register_netdevice (net/core/dev.c:11488)
[    8.785140][  T175]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.785313][  T175]  register_netdev (net/core/dev.c:11552)
[    8.785451][  T175]  loopback_net_init (drivers/net/loopback.c:218)
[    8.785588][  T175]  ops_init (net/core/net_namespace.c:137)
[    8.785703][  T175]  setup_net (net/core/net_namespace.c:446)
[    8.785806][  T175]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.785943][  T175]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.786079][  T175]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.786218][  T175]  copy_net_ns (net/core/net_namespace.c:579)
[    8.786366][  T175]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.786504][  T175]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.786649][  T175]  ksys_unshare (kernel/fork.c:3243)
[    8.786786][  T175]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.786921][  T175]  ? __ia32_sys_open (fs/open.c:1374)
[    8.787059][  T175]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.787192][  T175]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.787330][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.787463][  T175]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.787605][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.787748][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.787915][  T175] RIP: 0033:0x7f3eefff6bcb
[    8.788058][  T175] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.788538][  T175] RSP: 002b:00007ffcadb19ef8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.788755][  T175] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3eefff6bcb
[    8.788956][  T175] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.789157][  T175] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.789359][  T175] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcadb1c120
[    8.789558][  T175] R13: 0000000000000001 R14: 00007f3eefd346f8 R15: 00007ffcadb1c70e
| [    8.814397][  T176] ------------[ cut here ]------------
| [    8.814608][  T176] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/176
| [    8.814896][  T176] Modules linked in:
| [    8.815370][  T176] Tainted: [W]=WARN
[    8.815517][  T176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.816002][  T176] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.816224][  T176] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.816756][  T176] RSP: 0018:ffa00000008e7030 EFLAGS: 00010286
[    8.816969][  T176] RAX: 00000000ffffffa6 RBX: ff1100000a830580 RCX: 1ff400000011cdcc
[    8.817211][  T176] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a830638
[    8.817453][  T176] RBP: ff1100000a1dc000 R08: 1fe22000015060c8 R09: ff11000013c98b58
[    8.817715][  T176] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    8.817956][  T176] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a1dccd1
[    8.818202][  T176] FS:  00007fab2a1e4840(0000) GS:ff11000084c43000(0000) knlGS:0000000000000000
[    8.818481][  T176] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.818710][  T176] CR2: 0000000006f9c988 CR3: 0000000004c07004 CR4: 0000000000771ef0
[    8.818954][  T176] PKRU: 55555554
[    8.819099][  T176] Call Trace:
[    8.819246][  T176]  <TASK>
[    8.819361][  T176]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.819541][  T176]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.819725][  T176]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.819906][  T176]  __dev_notify_flags (net/core/dev.c:9787)
[    8.820089][  T176]  ? netif_change_name (net/core/dev.c:1495)
[    8.820267][  T176]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.820445][  T176]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    8.820649][  T176]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    8.820832][  T176]  netif_change_flags (net/core/dev.c:9820)
[    8.821016][  T176]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.821197][  T176]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.821376][  T176]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.821590][  T176]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.821795][  T176]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.821974][  T176]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.822157][  T176]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.822337][  T176]  ? __kernel_text_address (kernel/extable.c:79)
[    8.822517][  T176]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.822724][  T176]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.822905][  T176]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.823088][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.823270][  T176]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.823450][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.823650][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.823831][  T176]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.824010][  T176]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    8.824189][  T176]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.824370][  T176]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.824555][  T176]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.824758][  T176]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.824941][  T176]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.825123][  T176]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.825301][  T176]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.825482][  T176]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.825687][  T176]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.825870][  T176]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.826058][  T176]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.826235][  T176]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.826416][  T176]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.826608][  T176]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.826797][  T176]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.826980][  T176]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.827159][  T176]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.827337][  T176]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.827518][  T176]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.827722][  T176]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.827905][  T176]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.828090][  T176]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.828268][  T176]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.828447][  T176]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.828651][  T176]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    8.828834][  T176]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    8.829016][  T176]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.829196][  T176]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.829379][  T176]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.829559][  T176]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.829758][  T176]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.829938][  T176]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.830120][  T176]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.830302][  T176]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.830539][  T176]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.830770][  T176]  ? move_addr_to_kernel (net/socket.c:258)
[    8.830950][  T176]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.831130][  T176]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.831309][  T176]  ___sys_sendmsg (net/socket.c:2752)
[    8.831486][  T176]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.831833][  T176]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.832024][  T176]  __sys_sendmsg (net/socket.c:2784)
[    8.832203][  T176]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.832465][  T176]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.832703][  T176]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    8.832885][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.833067][  T176]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.833349][  T176]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.833529][  T176]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.833732][  T176]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.833946][  T176] RIP: 0033:0x7fab2a41e08e
[    8.834223][  T176] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    8.834864][  T176] RSP: 002b:00007ffd166ba040 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.835108][  T176] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fab2a41e08e
[    8.835350][  T176] RDX: 0000000000000000 RSI: 00007ffd166ba0f0 RDI: 0000000000000005
[    8.835721][  T176] RBP: 00007ffd166ba050 R08: 0000000000000000 R09: 0000000000000000
[    8.835972][  T176] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e42a
[    8.836213][  T176] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd166ba7c0
| [    8.962197][  T180] ------------[ cut here ]------------
| [    8.962403][  T180] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/180
| [    8.962710][  T180] Modules linked in:
| [    8.963183][  T180] Tainted: [W]=WARN
[    8.963331][  T180] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.963547][  T180] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.963796][  T180] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.964320][  T180] RSP: 0018:ffa0000000927ab0 EFLAGS: 00010286
[    8.964540][  T180] RAX: 00000000ffffffa6 RBX: ff11000012138200 RCX: 1ff4000000124f1c
[    8.964808][  T180] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000121382b8
[    8.965058][  T180] RBP: ff11000013bc1000 R08: 1fe2200002427058 R09: ff11000013c42e80
[    8.965302][  T180] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.965551][  T180] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013bc1000
[    8.965823][  T180] FS:  00007f83f61ce840(0000) GS:ff11000084c43000(0000) knlGS:0000000000000000
[    8.966106][  T180] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.966325][  T180] CR2: 00007f83f63cfc20 CR3: 0000000013c4f006 CR4: 0000000000771ef0
[    8.966576][  T180] PKRU: 55555554
[    8.966747][  T180] Call Trace:
[    8.966895][  T180]  <TASK>
[    8.967014][  T180]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.967201][  T180]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.967384][  T180]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.967534][  T180]  register_netdevice (net/core/dev.c:11488)
[    8.967761][  T180]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.967977][  T180]  register_netdev (net/core/dev.c:11552)
[    8.968157][  T180]  loopback_net_init (drivers/net/loopback.c:218)
[    8.968339][  T180]  ops_init (net/core/net_namespace.c:137)
[    8.968491][  T180]  setup_net (net/core/net_namespace.c:446)
[    8.968657][  T180]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.968838][  T180]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.969019][  T180]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.969201][  T180]  copy_net_ns (net/core/net_namespace.c:579)
[    8.969384][  T180]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.969566][  T180]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.969769][  T180]  ksys_unshare (kernel/fork.c:3243)
[    8.969950][  T180]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.970131][  T180]  ? __ia32_sys_open (fs/open.c:1374)
[    8.970317][  T180]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.970497][  T180]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.970702][  T180]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.970882][  T180]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.971063][  T180]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.971249][  T180]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.971462][  T180] RIP: 0033:0x7f83f6490bcb
[    8.971670][  T180] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.972187][  T180] RSP: 002b:00007ffe8ac731a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.972437][  T180] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f83f6490bcb
[    8.972706][  T180] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.972951][  T180] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[    8.973196][  T180] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe8ac753d0
[    8.973443][  T180] R13: 0000000000000001 R14: 0000000000000003 R15: 00007ffe8ac7770e
| [    9.003021][  T181] ------------[ cut here ]------------
| [    9.003183][  T181] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/181
| [    9.003417][  T181] Modules linked in:
| [    9.003807][  T181] Tainted: [W]=WARN
[    9.003908][  T181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.004074][  T181] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.004249][  T181] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.004733][  T181] RSP: 0018:ffa0000000937030 EFLAGS: 00010286
[    9.004902][  T181] RAX: 00000000ffffffa6 RBX: ff110000121391c0 RCX: 1ff4000000126dcc
[    9.005101][  T181] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000012139278
[    9.005299][  T181] RBP: ff11000013bc1000 R08: 1fe2200002427250 R09: ff11000013c45158
[    9.005498][  T181] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.005705][  T181] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013bc1cd1
[    9.005906][  T181] FS:  00007f9921e0b840(0000) GS:ff11000084cc3000(0000) knlGS:0000000000000000
[    9.006140][  T181] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.006308][  T181] CR2: 000000002dbb0988 CR3: 0000000013813002 CR4: 0000000000771ef0
[    9.006508][  T181] PKRU: 55555554
[    9.006611][  T181] Call Trace:
[    9.006717][  T181]  <TASK>
[    9.006787][  T181]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.006923][  T181]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.007025][  T181]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.007157][  T181]  __dev_notify_flags (net/core/dev.c:9787)
[    9.007291][  T181]  ? netif_change_name (net/core/dev.c:1495)
[    9.007424][  T181]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.007556][  T181]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    9.007698][  T181]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.007833][  T181]  netif_change_flags (net/core/dev.c:9820)
[    9.007967][  T181]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.008102][  T181]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.008237][  T181]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.008402][  T181]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.008535][  T181]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.009300][  T181]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.009441][  T181]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.009576][  T181]  ? __kernel_text_address (kernel/extable.c:79)
[    9.009761][  T181]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.009900][  T181]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.010033][  T181]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.010167][  T181]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.010299][  T181]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.010432][  T181]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.010563][  T181]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.010706][  T181]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.010841][  T181]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.010973][  T181]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.011106][  T181]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.011240][  T181]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.011375][  T181]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.011512][  T181]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.011657][  T181]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.011789][  T181]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.011923][  T181]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.012055][  T181]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.012187][  T181]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.012322][  T181]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.012454][  T181]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.012588][  T181]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.012735][  T181]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.012870][  T181]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.013003][  T181]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.013135][  T181]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.013268][  T181]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.013401][  T181]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.013535][  T181]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.013678][  T181]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.013813][  T181]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.013947][  T181]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.014081][  T181]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.014218][  T181]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.014350][  T181]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.014485][  T181]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.014631][  T181]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.014766][  T181]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.014902][  T181]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.015037][  T181]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.015171][  T181]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.015308][  T181]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.015441][  T181]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.015575][  T181]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.015749][  T181]  ? move_addr_to_kernel (net/socket.c:258)
[    9.015884][  T181]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.016018][  T181]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.016154][  T181]  ___sys_sendmsg (net/socket.c:2752)
[    9.016286][  T181]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.016451][  T181]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.016657][  T181]  __sys_sendmsg (net/socket.c:2784)
[    9.016793][  T181]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.016926][  T181]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.017095][  T181]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.017228][  T181]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.017362][  T181]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.017494][  T181]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.017639][  T181]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.017773][  T181]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.017939][  T181] RIP: 0033:0x7f992204508e
[    9.018080][  T181] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.018554][  T181] RSP: 002b:00007ffe77c88bd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.018767][  T181] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f992204508e
[    9.018966][  T181] RDX: 0000000000000000 RSI: 00007ffe77c88c80 RDI: 0000000000000005
[    9.019165][  T181] RBP: 00007ffe77c88be0 R08: 0000000000000000 R09: 0000000000000000
[    9.019364][  T181] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e42a
[    9.019565][  T181] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe77c89350
| [    9.470447][  T194] ------------[ cut here ]------------
| [    9.470731][  T194] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/194
| [    9.471022][  T194] Modules linked in:
| [    9.471546][  T194] Tainted: [W]=WARN
[    9.472345][  T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.472649][  T194] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.472942][  T194] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.473519][  T194] RSP: 0018:ffa00000009f6e30 EFLAGS: 00010286
[    9.473902][  T194] RAX: 00000000ffffffa6 RBX: ff11000012e178c0 RCX: 1ff400000013ed8c
[    9.474153][  T194] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000012e17978
[    9.474404][  T194] RBP: ff11000013d64000 R08: 1fe22000025c2f30 R09: ff11000013d40b80
[    9.474672][  T194] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.474923][  T194] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012cbe708
[    9.475175][  T194] FS:  00007f07c5daa840(0000) GS:ff11000084c43000(0000) knlGS:0000000000000000
[    9.475458][  T194] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.475699][  T194] CR2: 00007f07c6111f5d CR3: 0000000004c67006 CR4: 0000000000771ef0
[    9.475952][  T194] PKRU: 55555554
[    9.476099][  T194] Call Trace:
[    9.476249][  T194]  <TASK>
[    9.476365][  T194]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[    9.476583][  T194]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.476785][  T194]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.476936][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.477119][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.477323][  T194]  __dev_notify_flags (net/core/dev.c:9787)
[    9.477516][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.477723][  T194]  ? netif_change_name (net/core/dev.c:1495)
[    9.477911][  T194]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2))
[    9.478097][  T194]  ? preempt_schedule_notrace_thunk (arch/x86/entry/thunk.S:13)
[    9.478318][  T194]  ? trace_irq_enable.constprop.0 (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:649 ./include/linux/cpumask.h:1231 ./include/trace/events/preemptirq.h:40)
[    9.478541][  T194]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.478811][  T194]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.478996][  T194]  ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6))
[    9.479183][  T194]  veth_newlink (drivers/net/veth.c:1871)
[    9.479372][  T194]  ? veth_poll_controller (drivers/net/veth.c:1470)
[    9.479555][  T194]  ? kasan_save_stack (mm/kasan/common.c:57)
[    9.479763][  T194]  ? kasan_save_track (mm/kasan/common.c:78)
[    9.479952][  T194]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[    9.480154][  T194]  ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832)
[    9.480339][  T194]  ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7))
[    9.480527][  T194]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.480735][  T194]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.480922][  T194]  ? rtnl_create_link (net/core/rtnetlink.c:3720)
[    9.481109][  T194]  rtnl_newlink_create (net/core/rtnetlink.c:3904)
[    9.481297][  T194]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.481484][  T194]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.481689][  T194]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.481884][  T194]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.482073][  T194]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.482258][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.482442][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.482651][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.482840][  T194]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.483027][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.483217][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.483404][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.483590][  T194]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.483800][  T194]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.483986][  T194]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.484173][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.484362][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.484547][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.484752][  T194]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.484940][  T194]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.485127][  T194]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.485316][  T194]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.485503][  T194]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.485721][  T194]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.485913][  T194]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.486138][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.486398][  T194]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.486685][  T194]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.486956][  T194]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.487177][  T194]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.487363][  T194]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.487592][  T194]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.487918][  T194]  ? move_addr_to_kernel (net/socket.c:258)
[    9.488189][  T194]  ___sys_sendmsg (net/socket.c:2752)
[    9.488442][  T194]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.488733][  T194]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.488974][  T194]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[    9.489164][  T194]  __sys_sendmsg (net/socket.c:2784)
[    9.489352][  T194]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.489541][  T194]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[    9.489746][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.489937][  T194]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.490122][  T194]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.490307][  T194]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.490493][  T194]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.490736][  T194] RIP: 0033:0x7f07c5fe408e
[    9.490929][  T194] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.491455][  T194] RSP: 002b:00007ffd770a0620 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.491730][  T194] RAX: ffffffffffffffda RBX: 00007ffd770a0dc8 RCX: 00007f07c5fe408e
[    9.491984][  T194] RDX: 0000000000000000 RSI: 00007ffd770a06d0 RDI: 0000000000000005
[    9.492233][  T194] RBP: 00007ffd770a0630 R08: 0000000000000000 R09: 0000000000000000
[    9.492483][  T194] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e42a
[    9.492755][  T194] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd770a0d90
| [    9.501902][  T194] ------------[ cut here ]------------
| [    9.502065][  T194] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/194
| [    9.502304][  T194] Modules linked in:
| [    9.502754][  T194] Tainted: [W]=WARN
[    9.502857][  T194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.503029][  T194] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.503256][  T194] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.503764][  T194] RSP: 0018:ffa00000009f71b0 EFLAGS: 00010286
[    9.503976][  T194] RAX: 00000000ffffffa6 RBX: ff1100000abc63c0 RCX: 1ff400000013edfc
[    9.504180][  T194] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000abc6478
[    9.504385][  T194] RBP: ff11000013d61000 R08: 1fe2200001578c90 R09: ff11000013d40b80
[    9.504669][  T194] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.504871][  T194] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    9.505076][  T194] FS:  00007f07c5daa840(0000) GS:ff11000084cc3000(0000) knlGS:0000000000000000
[    9.505316][  T194] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.505486][  T194] CR2: 00007f00d6d9e2a0 CR3: 0000000004c67003 CR4: 0000000000771ef0
[    9.505700][  T194] PKRU: 55555554
[    9.505803][  T194] Call Trace:
[    9.505907][  T194]  <TASK>
[    9.505977][  T194]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.506115][  T194]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.506220][  T194]  __dev_notify_flags (net/core/dev.c:9787)
[    9.506357][  T194]  ? netif_change_name (net/core/dev.c:1495)
[    9.506493][  T194]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.506638][  T194]  ? alloc_netdev_mqs (net/core/dev.c:12133)
[    9.506778][  T194]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.506936][  T194]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    9.507135][  T194]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.507301][  T194]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.507437][  T194]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.507578][  T194]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.507730][  T194]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.507868][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.508004][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.508139][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.508273][  T194]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.508408][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.508548][  T194]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.508698][  T194]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.508833][  T194]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.508967][  T194]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.509103][  T194]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.509237][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.509373][  T194]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.509509][  T194]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.509658][  T194]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.509792][  T194]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.509928][  T194]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.510067][  T194]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.510201][  T194]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.510338][  T194]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.510477][  T194]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.510618][  T194]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.510761][  T194]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.510897][  T194]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.511033][  T194]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.511171][  T194]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.511306][  T194]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.511443][  T194]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.511617][  T194]  ? move_addr_to_kernel (net/socket.c:258)
[    9.511762][  T194]  ___sys_sendmsg (net/socket.c:2752)
[    9.511898][  T194]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.512037][  T194]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.512209][  T194]  ? do_sys_openat2 (./include/linux/fs.h:2553 fs/open.c:1363)
[    9.512437][  T194]  __sys_sendmsg (net/socket.c:2784)
[    9.512573][  T194]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.512721][  T194]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[    9.512857][  T194]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.512993][  T194]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.513127][  T194]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.513262][  T194]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.513398][  T194]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.513565][  T194] RIP: 0033:0x7f07c5fe408e
[    9.513720][  T194] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.514201][  T194] RSP: 002b:00007ffd770a0620 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.514405][  T194] RAX: ffffffffffffffda RBX: 00007ffd770a0dc8 RCX: 00007f07c5fe408e
[    9.514610][  T194] RDX: 0000000000000000 RSI: 00007ffd770a06d0 RDI: 0000000000000005
[    9.514818][  T194] RBP: 00007ffd770a0630 R08: 0000000000000000 R09: 0000000000000000
[    9.515018][  T194] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e42a
[    9.515311][  T194] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd770a0d90
| [    9.673481][  T200] ------------[ cut here ]------------
| [    9.673671][  T200] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/200
| [    9.673912][  T200] Modules linked in:
| [    9.674296][  T200] Tainted: [W]=WARN
[    9.674398][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.674565][  T200] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.674752][  T200] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.675229][  T200] RSP: 0018:ffa0000000a37030 EFLAGS: 00010286
[    9.675397][  T200] RAX: 00000000ffffffa6 RBX: ff1100000a831e00 RCX: 1ff4000000146dcc
[    9.675604][  T200] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a831eb8
[    9.675809][  T200] RBP: ff11000013d61000 R08: 1fe22000015063d8 R09: ff11000005018b58
[    9.676010][  T200] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.676212][  T200] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013d61cd1
[    9.676413][  T200] FS:  00007f9b57a3d840(0000) GS:ff11000084cc3000(0000) knlGS:0000000000000000
[    9.676700][  T200] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.676949][  T200] CR2: 0000000025a9b988 CR3: 0000000013079004 CR4: 0000000000771ef0
[    9.677256][  T200] PKRU: 55555554
[    9.677402][  T200] Call Trace:
[    9.677553][  T200]  <TASK>
[    9.677676][  T200]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.677826][  T200]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.677929][  T200]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.678069][  T200]  __dev_notify_flags (net/core/dev.c:9787)
[    9.678205][  T200]  ? netif_change_name (net/core/dev.c:1495)
[    9.678339][  T200]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.678476][  T200]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    9.679203][  T200]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.679348][  T200]  netif_change_flags (net/core/dev.c:9820)
[    9.679484][  T200]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.679632][  T200]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.679768][  T200]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.679936][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.680071][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.680205][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.680339][  T200]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.680475][  T200]  ? __kernel_text_address (kernel/extable.c:79)
[    9.680619][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.680763][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.680898][  T200]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.681035][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.681170][  T200]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.681305][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.681438][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.681572][  T200]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.681716][  T200]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.681849][  T200]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.681986][  T200]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.682123][  T200]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.682263][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.682403][  T200]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.682540][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.682683][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.682818][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.682951][  T200]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.683086][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.683224][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.683360][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.683494][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.683639][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.683776][  T200]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.683912][  T200]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.684049][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.684185][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.684319][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.684457][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.684591][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.684736][  T200]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.684873][  T200]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.685012][  T200]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.685153][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.685288][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.685425][  T200]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.685560][  T200]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.685707][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.685846][  T200]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.685985][  T200]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.686121][  T200]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.686260][  T200]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.686395][  T200]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.686531][  T200]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.686707][  T200]  ? move_addr_to_kernel (net/socket.c:258)
[    9.686842][  T200]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.686977][  T200]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.687114][  T200]  ___sys_sendmsg (net/socket.c:2752)
[    9.687247][  T200]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.687415][  T200]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.687561][  T200]  __sys_sendmsg (net/socket.c:2784)
[    9.687705][  T200]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.687839][  T200]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.688010][  T200]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.688144][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.688278][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.688412][  T200]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.688545][  T200]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.688690][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.688856][  T200] RIP: 0033:0x7f9b57c7708e
[    9.688998][  T200] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.689480][  T200] RSP: 002b:00007ffeb8703450 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.689693][  T200] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9b57c7708e
[    9.689895][  T200] RDX: 0000000000000000 RSI: 00007ffeb8703500 RDI: 0000000000000005
[    9.690096][  T200] RBP: 00007ffeb8703460 R08: 0000000000000000 R09: 0000000000000000
[    9.690296][  T200] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e42b
[    9.690497][  T200] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffeb8703bd0
| [    9.839730][  T205] ------------[ cut here ]------------
| [    9.839942][  T205] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/205
| [    9.840227][  T205] Modules linked in:
| [    9.840715][  T205] Tainted: [W]=WARN
[    9.840865][  T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.841078][  T205] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.841299][  T205] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.842182][  T205] RSP: 0018:ffa0000000a87030 EFLAGS: 00010286
[    9.842577][  T205] RAX: 00000000ffffffa6 RBX: ff11000012139700 RCX: 1ff4000000150dcc
[    9.842923][  T205] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000121397b8
[    9.843268][  T205] RBP: ff11000013d64000 R08: 1fe22000024272f8 R09: ff11000013c98b58
[    9.843590][  T205] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    9.843989][  T205] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013d64cd1
[    9.844238][  T205] FS:  00007efe2ef02840(0000) GS:ff11000084c43000(0000) knlGS:0000000000000000
[    9.844523][  T205] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.844759][  T205] CR2: 00007efe2f1d21a0 CR3: 000000001523e005 CR4: 0000000000771ef0
[    9.845010][  T205] PKRU: 55555554
[    9.845158][  T205] Call Trace:
[    9.845304][  T205]  <TASK>
[    9.845419][  T205]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.845615][  T205]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.845773][  T205]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.845956][  T205]  __dev_notify_flags (net/core/dev.c:9787)
[    9.846138][  T205]  ? netif_change_name (net/core/dev.c:1495)
[    9.846319][  T205]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.846512][  T205]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[    9.846715][  T205]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.846899][  T205]  netif_change_flags (net/core/dev.c:9820)
[    9.847083][  T205]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.847266][  T205]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.847446][  T205]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.847680][  T205]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.847862][  T205]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.848043][  T205]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.848222][  T205]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.848403][  T205]  ? __kernel_text_address (kernel/extable.c:79)
[    9.848585][  T205]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.848785][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.848968][  T205]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.849149][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.849330][  T205]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.849509][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.849711][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.849892][  T205]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.850073][  T205]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.850252][  T205]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.850436][  T205]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.850636][  T205]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.850820][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.851003][  T205]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.851185][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.851364][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.851544][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.851743][  T205]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.851925][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.852109][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.852288][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.852468][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.852669][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.852852][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.853034][  T205]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.853217][  T205]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.853397][  T205]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.853578][  T205]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.853784][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.853963][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.854146][  T205]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.854328][  T205]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.854511][  T205]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.854719][  T205]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.854899][  T205]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.855084][  T205]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.855266][  T205]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.855447][  T205]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.855649][  T205]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.855833][  T205]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.856014][  T205]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.856228][  T205]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.856411][  T205]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.856591][  T205]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.856827][  T205]  ? move_addr_to_kernel (net/socket.c:258)
[    9.857010][  T205]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.857190][  T205]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.857372][  T205]  ___sys_sendmsg (net/socket.c:2752)
[    9.857553][  T205]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.857791][  T205]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.857986][  T205]  __sys_sendmsg (net/socket.c:2784)
[    9.858168][  T205]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.858346][  T205]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.858560][  T205]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.858759][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.858947][  T205]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.859127][  T205]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.859306][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.859487][  T205]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.859718][  T205] RIP: 0033:0x7efe2f13c08e
[    9.859907][  T205] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.860427][  T205] RSP: 002b:00007fff472d9290 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.860695][  T205] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007efe2f13c08e
[    9.860941][  T205] RDX: 0000000000000000 RSI: 00007fff472d9340 RDI: 0000000000000005
[    9.861188][  T205] RBP: 00007fff472d92a0 R08: 0000000000000000 R09: 0000000000000000
[    9.861431][  T205] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e42b
[    9.861698][  T205] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff472d9a10
| [    9.866463][   T56] ------------[ cut here ]------------
| [    9.866660][   T56] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 1/56
| [    9.866972][   T56] Modules linked in:
| [    9.867394][   T56] Tainted: [W]=WARN
[    9.867490][   T56] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.867689][   T56] Workqueue: events_unbound linkwatch_event
[    9.867862][   T56] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.868025][   T56] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.868464][   T56] RSP: 0018:ffa00000003cf9e0 EFLAGS: 00010286
[    9.868798][   T56] RAX: 00000000ffffffa6 RBX: ff11000015092580 RCX: 1ff4000000079f02
[    9.868988][   T56] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000015092638
[    9.869172][   T56] RBP: ff11000013d61000 R08: 1fe2200002a124c8 R09: ff11000005182ea8
[    9.869357][   T56] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[    9.869540][   T56] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.869744][   T56] FS:  0000000000000000(0000) GS:ff11000084bc3000(0000) knlGS:0000000000000000
[    9.869960][   T56] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.870120][   T56] CR2: 00007efe2efcf574 CR3: 000000000e75d003 CR4: 0000000000771ef0
[    9.870307][   T56] PKRU: 55555554
[    9.870400][   T56] Call Trace:
[    9.870493][   T56]  <TASK>
[    9.870559][   T56]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.870695][   T56]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.870820][   T56]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.870917][   T56]  netif_state_change (net/core/dev.c:1605)
[    9.871044][   T56]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[    9.871201][   T56]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[    9.871325][   T56]  __linkwatch_run_queue (net/core/link_watch.c:240)
[    9.871451][   T56]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.871579][   T56]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[    9.871715][   T56]  ? __linkwatch_run_queue (./include/linux/list.h:561)
[    9.871843][   T56]  process_one_work (kernel/workqueue.c:3314)
[    9.871972][   T56]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.872096][   T56]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.872226][   T56]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.872352][   T56]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.872477][   T56]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    9.872608][   T56]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.872739][   T56]  kthread (kernel/kthread.c:436)
[    9.872835][   T56]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.872992][   T56]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.873115][   T56]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.873244][   T56]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.873399][   T56]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.873524][   T56]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.873658][   T56]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.564542][   T37] ------------[ cut here ]------------
| [   10.564778][   T37] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/37
| [   10.565043][   T37] Modules linked in:
| [   10.565425][   T37] Tainted: [W]=WARN
[   10.565520][   T37] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.565714][   T37] Workqueue: events_unbound linkwatch_event
[   10.565870][   T37] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.566028][   T37] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.566455][   T37] RSP: 0018:ffa000000029f9e0 EFLAGS: 00010286
[   10.566648][   T37] RAX: 00000000ffffffa6 RBX: ff11000015093c40 RCX: 1ff4000000053f02
[   10.566830][   T37] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000015093cf8
[   10.567013][   T37] RBP: ff11000013d64000 R08: 1fe2200002a127a0 R09: ff11000001d88ba8
[   10.567192][   T37] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   10.567389][   T37] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.567567][   T37] FS:  0000000000000000(0000) GS:ff11000084bc3000(0000) knlGS:0000000000000000
[   10.567788][   T37] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.567938][   T37] CR2: 00007f6e0e0e4e65 CR3: 00000000151bf006 CR4: 0000000000771ef0
[   10.568119][   T37] PKRU: 55555554
[   10.568209][   T37] Call Trace:
[   10.568298][   T37]  <TASK>
[   10.568362][   T37]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.568484][   T37]  ? notifier_call_chain (kernel/notifier.c:85)
[   10.568617][   T37]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.568712][   T37]  netif_state_change (net/core/dev.c:1605)
[   10.568838][   T37]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[   10.568988][   T37]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   10.569108][   T37]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   10.569227][   T37]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.569349][   T37]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   10.569469][   T37]  ? __linkwatch_run_queue (./include/linux/list.h:561)
[   10.569588][   T37]  process_one_work (kernel/workqueue.c:3314)
[   10.569723][   T37]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   10.569840][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.569964][   T37]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.570087][   T37]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.570204][   T37]  kthread (kernel/kthread.c:436)
[   10.570303][   T37]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.570450][   T37]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.570568][   T37]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.570697][   T37]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   10.570843][   T37]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   10.570962][   T37]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.571080][   T37]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   48.100105][   T12] ------------[ cut here ]------------
| [   48.100319][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   48.100592][   T12] Modules linked in:
| [   48.101044][   T12] Tainted: [W]=WARN
[   48.101146][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.101312][   T12] Workqueue: netns cleanup_net
[   48.101453][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.101675][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.102160][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   48.102330][   T12] RAX: 00000000ffffffa6 RBX: ff1100001237e3c0 RCX: 1ff4000000018eaf
[   48.102526][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100001237e478
[   48.102731][   T12] RBP: ff11000013d61000 R08: 1fe220000246fc90 R09: ff11000001b051d0
[   48.102933][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   48.103156][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000013d64000
[   48.103381][   T12] FS:  0000000000000000(0000) GS:ff11000084cc3000(0000) knlGS:0000000000000000
[   48.103614][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.103786][   T12] CR2: 00007fd9135ebf98 CR3: 000000000e75d006 CR4: 0000000000771ef0
[   48.103988][   T12] PKRU: 55555554
[   48.104087][   T12] Call Trace:
[   48.104186][   T12]  <TASK>
[   48.104255][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.104392][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.104494][   T12]  netif_close_many (net/core/dev.c:1804)
[   48.104686][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.104826][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.104963][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.105100][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   48.105233][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   48.105397][   T12]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   48.105539][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   48.105714][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   48.105852][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   48.106015][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   48.106148][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.106282][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   48.106449][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   48.106583][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   48.106723][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   48.106860][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   48.106993][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   48.107125][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.107259][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   48.107396][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   48.107529][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   48.107666][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.107805][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   48.107939][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   48.108069][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   48.108203][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.108337][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.108470][   T12]  process_one_work (kernel/workqueue.c:3314)
[   48.108612][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   48.108747][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.108886][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   48.109024][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   48.109159][   T12]  kthread (kernel/kthread.c:436)
[   48.109260][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   48.109426][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.109557][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   48.109699][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   48.109868][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   48.109999][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.110132][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   48.113733][   T12] ------------[ cut here ]------------
| [   48.113885][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   48.114158][   T12] Modules linked in:
| [   48.114660][   T12] Tainted: [W]=WARN
[   48.114765][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.114930][   T12] Workqueue: netns cleanup_net
[   48.115152][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.115324][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.115888][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   48.116054][   T12] RAX: 00000000ffffffa6 RBX: ff11000002620c80 RCX: 1ff4000000018eaf
[   48.116250][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000002620d38
[   48.116530][   T12] RBP: ff11000013d64000 R08: 1fe22000004c41a8 R09: ff11000001b051d0
[   48.116732][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   48.117016][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a1dc000
[   48.117213][   T12] FS:  0000000000000000(0000) GS:ff11000084cc3000(0000) knlGS:0000000000000000
[   48.117442][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.117693][   T12] CR2: 00007fd9135ebf98 CR3: 000000000e75d006 CR4: 0000000000771ef0
[   48.117895][   T12] PKRU: 55555554
[   48.117994][   T12] Call Trace:
[   48.118091][   T12]  <TASK>
[   48.118242][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.118375][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   48.118509][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.118613][   T12]  netif_close_many (net/core/dev.c:1804)
[   48.118751][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.118965][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.119096][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.119226][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   48.119356][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   48.119519][   T12]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   48.119660][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   48.119833][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   48.119964][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   48.120127][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   48.120257][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.120387][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   48.120553][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   48.120693][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   48.120833][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   48.120965][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   48.121097][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   48.121227][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.121358][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   48.121492][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   48.121629][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   48.121767][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.121901][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   48.122032][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   48.122161][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   48.122295][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.122425][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.122558][   T12]  process_one_work (kernel/workqueue.c:3314)
[   48.122698][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   48.122832][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.122970][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   48.123107][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   48.123238][   T12]  kthread (kernel/kthread.c:436)
[   48.123337][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   48.123498][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.123634][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   48.123770][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   48.123935][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   48.124077][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.124206][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   48.128893][   T12] ------------[ cut here ]------------
| [   48.129037][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [   48.129292][   T12] Modules linked in:
| [   48.130825][   T12] Tainted: [W]=WARN
[   48.130931][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.131100][   T12] Workqueue: netns cleanup_net
[   48.131236][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.131404][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.131934][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   48.132097][   T12] RAX: 00000000ffffffa6 RBX: ff110000150a9540 RCX: 1ff4000000018eaf
[   48.132289][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000150a95f8
[   48.132481][   T12] RBP: ff1100000a1dc000 R08: 1fe2200002a152c0 R09: ff11000001b051d0
[   48.132728][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   48.132928][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   48.133122][   T12] FS:  0000000000000000(0000) GS:ff11000084cc3000(0000) knlGS:0000000000000000
[   48.133348][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.133510][   T12] CR2: 00007fd9135ebf98 CR3: 000000000e75d006 CR4: 0000000000771ef0
[   48.133767][   T12] PKRU: 55555554
[   48.133866][   T12] Call Trace:
[   48.133963][   T12]  <TASK>
[   48.134031][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.134162][   T12]  ? notifier_call_chain (kernel/notifier.c:85)
[   48.134294][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.134395][   T12]  netif_close_many (net/core/dev.c:1804)
[   48.134525][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.134707][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.134842][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.134972][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   48.135102][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   48.135265][   T12]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   48.135394][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   48.135559][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   48.135739][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   48.135908][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   48.136037][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.136167][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   48.136329][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   48.136462][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   48.136593][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   48.136777][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   48.136907][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   48.137039][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.137169][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   48.137300][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   48.137432][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   48.137561][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.137752][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   48.137885][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   48.138013][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   48.138146][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.138276][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.138410][   T12]  process_one_work (kernel/workqueue.c:3314)
[   48.138543][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   48.138720][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.138860][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   48.138993][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   48.139121][   T12]  kthread (kernel/kthread.c:436)
[   48.139218][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   48.139378][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.139508][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   48.139687][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   48.139858][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   48.139988][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.140119][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   48.143060][   T12] ------------[ cut here ]------------
| [   48.143213][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   48.143461][   T12] Modules linked in:
| [   48.143866][   T12] Tainted: [W]=WARN
[   48.143963][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.144119][   T12] Workqueue: netns cleanup_net
[   48.144250][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.144420][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.144932][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   48.145090][   T12] RAX: 00000000ffffffa6 RBX: ff110000150b4900 RCX: 1ff4000000018ed5
[   48.145276][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000150b49b8
[   48.145462][   T12] RBP: ff11000013d61000 R08: 1fe2200002a16938 R09: ff11000001b051d0
[   48.145697][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   48.145888][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   48.146075][   T12] FS:  0000000000000000(0000) GS:ff11000084bc3000(0000) knlGS:0000000000000000
[   48.146293][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.146449][   T12] CR2: 000055d841e4dd5c CR3: 000000000e75d006 CR4: 0000000000771ef0
[   48.146685][   T12] PKRU: 55555554
[   48.146782][   T12] Call Trace:
[   48.146876][   T12]  <TASK>
[   48.146940][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   48.147097][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   48.147251][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   48.147375][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.147498][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   48.147702][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   48.147831][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   48.147954][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   48.148077][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   48.148202][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.148324][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   48.148450][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   48.148578][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   48.148707][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.148840][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   48.148966][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   48.149089][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   48.149213][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.149336][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.149462][   T12]  process_one_work (kernel/workqueue.c:3314)
[   48.149591][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   48.149720][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.149855][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   48.149982][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   48.150107][   T12]  kthread (kernel/kthread.c:436)
[   48.150200][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   48.150353][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.150479][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   48.150609][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   48.150768][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   48.150892][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.151015][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   48.153959][   T12] ------------[ cut here ]------------
| [   48.154103][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   48.154349][   T12] Modules linked in:
| [   48.154732][   T12] Tainted: [W]=WARN
[   48.154831][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.154984][   T12] Workqueue: netns cleanup_net
[   48.155113][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.155274][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.155726][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   48.155888][   T12] RAX: 00000000ffffffa6 RBX: ff110000150b5700 RCX: 1ff4000000018ed5
[   48.156073][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000150b57b8
[   48.156262][   T12] RBP: ff11000013d64000 R08: 1fe2200002a16af8 R09: ff11000001b051d0
[   48.156445][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   48.156713][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   48.156997][   T12] FS:  0000000000000000(0000) GS:ff11000084bc3000(0000) knlGS:0000000000000000
[   48.157218][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.157378][   T12] CR2: 000055d841e4dd5c CR3: 000000000e75d006 CR4: 0000000000771ef0
[   48.157564][   T12] PKRU: 55555554
[   48.157776][   T12] Call Trace:
[   48.157872][   T12]  <TASK>
[   48.157937][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   48.158097][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   48.158252][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   48.158378][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.158502][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   48.158887][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   48.159113][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   48.159240][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   48.159365][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   48.159489][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.159666][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   48.159799][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   48.159925][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   48.160046][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.160174][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   48.160298][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   48.160421][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   48.160547][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.160718][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.160851][   T12]  process_one_work (kernel/workqueue.c:3314)
[   48.160979][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   48.161102][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.161231][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   48.161359][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   48.161481][   T12]  kthread (kernel/kthread.c:436)
[   48.161578][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   48.161784][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.161908][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   48.162032][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   48.162188][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   48.162312][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.162437][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   48.165913][   T12] ------------[ cut here ]------------
| [   48.166056][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   48.166308][   T12] Modules linked in:
| [   48.166696][   T12] Tainted: [W]=WARN
[   48.166796][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.166953][   T12] Workqueue: netns cleanup_net
[   48.167086][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.167251][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.167776][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   48.167938][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ab06900 RCX: 1ff4000000018ed5
[   48.168135][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000ab069b8
[   48.168325][   T12] RBP: ff1100000a1dc000 R08: 1fe2200001560d38 R09: ff11000001b051d0
[   48.168510][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   48.168700][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   48.168895][   T12] FS:  0000000000000000(0000) GS:ff11000084b43000(0000) knlGS:0000000000000000
[   48.169115][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.169273][   T12] CR2: 000055d846fe23c8 CR3: 000000000e75d002 CR4: 0000000000771ef0
[   48.169462][   T12] PKRU: 55555554
[   48.169555][   T12] Call Trace:
[   48.169654][   T12]  <TASK>
[   48.169720][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   48.169885][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   48.170040][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   48.170165][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.170291][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[   48.170452][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   48.170577][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   48.170709][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   48.170843][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   48.170977][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.171102][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   48.171233][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   48.171364][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   48.171487][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.171624][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   48.171754][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   48.171878][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   48.172003][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.172129][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.172254][   T12]  process_one_work (kernel/workqueue.c:3314)
[   48.172383][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   48.172508][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.172655][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   48.172789][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   48.172914][   T12]  kthread (kernel/kthread.c:436)
[   48.173008][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   48.173162][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.173288][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   48.173416][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   48.173573][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   48.173700][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.173831][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   48.267252][   T12] ------------[ cut here ]------------
| [   48.267455][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   48.267778][   T12] Modules linked in:
| [   48.268266][   T12] Tainted: [W]=WARN
[   48.268409][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.268630][   T12] Workqueue: netns cleanup_net
[   48.268819][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.269035][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.269546][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   48.269781][   T12] RAX: 00000000ffffffa6 RBX: ff1100000ab078c0 RCX: 1ff4000000018eaf
[   48.270027][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000ab07978
[   48.270265][   T12] RBP: ff11000013bc1000 R08: 1fe2200001560f30 R09: ff11000001b051d0
[   48.270500][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   48.270758][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e0
[   48.271003][   T12] FS:  0000000000000000(0000) GS:ff11000084c43000(0000) knlGS:0000000000000000
[   48.271274][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.271483][   T12] CR2: 00007f2ab3ac0574 CR3: 000000000e75d003 CR4: 0000000000771ef0
[   48.271733][   T12] PKRU: 55555554
[   48.271888][   T12] Call Trace:
[   48.272030][   T12]  <TASK>
[   48.272149][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   48.272327][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   48.272474][   T12]  netif_close_many (net/core/dev.c:1804)
[   48.272679][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.272865][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.273040][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.273215][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   48.273392][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   48.273615][   T12]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   48.273801][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   48.274013][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   48.274190][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.274367][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   48.274545][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   48.274777][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   48.274957][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   48.275139][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   48.275317][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   48.275496][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   48.275684][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.275867][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   48.276046][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   48.276226][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   48.276399][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.276578][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   48.276773][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   48.276948][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   48.277125][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.277300][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.277478][   T12]  process_one_work (kernel/workqueue.c:3314)
[   48.277672][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   48.277851][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.278068][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   48.278253][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   48.278432][   T12]  kthread (kernel/kthread.c:436)
[   48.278578][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   48.278812][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.278987][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   48.279169][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   48.279388][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   48.279567][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.279763][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   48.282688][   T12] ------------[ cut here ]------------
| [   48.282864][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 0/12
| [   48.283152][   T12] Modules linked in:
| [   48.283707][   T12] Tainted: [W]=WARN
[   48.283869][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.284067][   T12] Workqueue: netns cleanup_net
[   48.284250][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   48.284454][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e5 f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 38 e5 f0 ff       	call   0xfffffffffff0e574
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 38 e5 f0 ff       	call   0xfffffffffff0e54a
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   48.284963][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   48.285163][   T12] RAX: 00000000ffffffa6 RBX: ff110000123a8900 RCX: 1ff4000000018ed5
[   48.285389][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000123a89b8
[   48.285631][   T12] RBP: ff11000013bc1000 R08: 1fe2200002475138 R09: ff11000001b051d0
[   48.285866][   T12] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   48.286094][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   48.286349][   T12] FS:  0000000000000000(0000) GS:ff11000084c43000(0000) knlGS:0000000000000000
[   48.286624][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.286834][   T12] CR2: 00007f2ab3ac0574 CR3: 000000000e75d003 CR4: 0000000000771ef0
[   48.287063][   T12] PKRU: 55555554
[   48.287202][   T12] Call Trace:
[   48.287339][   T12]  <TASK>
[   48.287449][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   48.287668][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   48.287885][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   48.288060][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   48.288232][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   48.288401][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   48.288574][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   48.288766][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   48.288936][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   48.289111][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   48.289286][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   48.289454][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   48.289643][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   48.289822][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   48.289996][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   48.290172][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   48.290347][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   48.290547][   T12]  process_one_work (kernel/workqueue.c:3314)
[   48.290736][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   48.290915][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   48.291092][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   48.291267][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   48.291435][   T12]  kthread (kernel/kthread.c:436)
[   48.291577][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   48.291798][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   48.292042][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   48.292216][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   48.292417][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   48.292586][   T12]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_state_change:__linkwatch_run_queue:linkwatch_event
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:default_device_exit_batch
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:veth_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:rtnl_newlink_create
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init