======================================
| [    8.875172][  T182] ------------[ cut here ]------------
| [    8.875448][  T182] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/182
| [    8.875695][  T182] Modules linked in: netconsole netdevsim
| [    8.876131][  T182] Tainted: [W]=WARN
[    8.876232][  T182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.876411][  T182] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.876588][  T182] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.877059][  T182] RSP: 0018:ffa0000000627aa8 EFLAGS: 00010286
[    8.877226][  T182] RAX: 00000000ffffffa6 RBX: ff11000004e0c340 RCX: 1ff40000000c4f1b
[    8.877432][  T182] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004e0c3f0
[    8.877634][  T182] RBP: ff110000074f9000 R08: 1fe22000009c187f R09: ff1100000b3b5180
[    8.877832][  T182] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.878029][  T182] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000074f9000
[    8.878238][  T182] FS:  00007fb25db6d840(0000) GS:ff11000092d85000(0000) knlGS:0000000000000000
[    8.878479][  T182] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.878651][  T182] CR2: 0000000000479648 CR3: 0000000008f8b001 CR4: 0000000000771ef0
[    8.878850][  T182] PKRU: 55555554
[    8.878948][  T182] Call Trace:
[    8.879048][  T182]  <TASK>
[    8.879118][  T182]  ? ip6_route_dev_notify (net/ipv6/route.c:6484)
[    8.879261][  T182]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.879399][  T182]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.879537][  T182]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.879640][  T182]  register_netdevice (net/core/dev.c:11488)
[    8.879776][  T182]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.879943][  T182]  register_netdev (net/core/dev.c:11552)
[    8.880076][  T182]  loopback_net_init (drivers/net/loopback.c:218)
[    8.880212][  T182]  ops_init (net/core/net_namespace.c:137)
[    8.880315][  T182]  setup_net (net/core/net_namespace.c:446)
[    8.880421][  T182]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.880554][  T182]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.880688][  T182]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.880823][  T182]  copy_net_ns (net/core/net_namespace.c:579)
[    8.880956][  T182]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.881093][  T182]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.881225][  T182]  ksys_unshare (kernel/fork.c:3243)
[    8.881366][  T182]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.881498][  T182]  ? __ia32_sys_open (fs/open.c:1374)
[    8.881638][  T182]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.881770][  T182]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.881901][  T182]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.882034][  T182]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.882169][  T182]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.882309][  T182]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.882478][  T182] RIP: 0033:0x7fb25de2fbcb
[    8.882617][  T182] 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
[    8.883095][  T182] RSP: 002b:00007ffc7153a798 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.883309][  T182] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fb25de2fbcb
[    8.883512][  T182] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.883711][  T182] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.883908][  T182] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc7153c9c0
[    8.884109][  T182] R13: 0000000000000001 R14: 00007fb25db6d6f8 R15: 00007ffc7153e809
| [    8.915924][  T183] ------------[ cut here ]------------
| [    8.916112][  T183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/183
| [    8.916418][  T183] Modules linked in: netconsole netdevsim
| [    8.916916][  T183] Tainted: [W]=WARN
[    8.917065][  T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.917281][  T183] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.918139][  T183] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.918663][  T183] RSP: 0018:ffa0000000647020 EFLAGS: 00010286
[    8.918876][  T183] RAX: 00000000ffffffa6 RBX: ff11000004e0c7c0 RCX: 1ff40000000c8dca
[    8.919118][  T183] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004e0c870
[    8.919380][  T183] RBP: ff110000074f9000 R08: 1fe22000009c190f R09: ff1100000b3b2e58
[    8.919621][  T183] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    8.919859][  T183] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    8.920104][  T183] FS:  00007f384a822840(0000) GS:ff11000092e85000(0000) knlGS:0000000000000000
[    8.920397][  T183] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.920605][  T183] CR2: 00007f384aaf21a0 CR3: 0000000014e67003 CR4: 0000000000771ef0
[    8.920845][  T183] PKRU: 55555554
[    8.920989][  T183] Call Trace:
[    8.921133][  T183]  <TASK>
[    8.921253][  T183]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.921449][  T183]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.921595][  T183]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.921772][  T183]  __dev_notify_flags (net/core/dev.c:9787)
[    8.921950][  T183]  ? netif_change_name (net/core/dev.c:1495)
[    8.922127][  T183]  ? __dev_change_flags (net/core/dev.c:9752)
[    8.922311][  T183]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    8.922499][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.922680][  T183]  ? 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))
[    8.922860][  T183]  netif_change_flags (net/core/dev.c:9820)
[    8.923038][  T183]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    8.923216][  T183]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    8.923415][  T183]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    8.923592][  T183]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.923804][  T183]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.923981][  T183]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.924158][  T183]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    8.924341][  T183]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.924533][  T183]  ? __kernel_text_address (kernel/extable.c:79)
[    8.924711][  T183]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.924889][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.925069][  T183]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.925254][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.925443][  T183]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    8.925617][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.925794][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.925970][  T183]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    8.926147][  T183]  ? __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)
[    8.926332][  T183]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    8.926525][  T183]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    8.926704][  T183]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    8.926883][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    8.927064][  T183]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    8.927249][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.927435][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.927613][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.927788][  T183]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    8.927967][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.928147][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.928330][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.928523][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.928700][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.928879][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    8.929056][  T183]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    8.929245][  T183]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.929435][  T183]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.929613][  T183]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.929792][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.929968][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    8.930151][  T183]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.930338][  T183]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    8.930534][  T183]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.930719][  T183]  ? 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))
[    8.930894][  T183]  ? 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))
[    8.931073][  T183]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.931257][  T183]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.931449][  T183]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.931629][  T183]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.931809][  T183]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.931992][  T183]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.932174][  T183]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    8.932379][  T183]  ? copy_msghdr_from_user (net/socket.c:2635)
[    8.932560][  T183]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    8.932768][  T183]  ? move_addr_to_kernel (net/socket.c:258)
[    8.932948][  T183]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    8.933126][  T183]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    8.933317][  T183]  ___sys_sendmsg (net/socket.c:2752)
[    8.933504][  T183]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    8.933715][  T183]  ? copy_msghdr_from_user (net/socket.c:2603)
[    8.933905][  T183]  __sys_sendmsg (net/socket.c:2784)
[    8.934082][  T183]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    8.934264][  T183]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    8.934491][  T183]  ? 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)
[    8.934673][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.934852][  T183]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.935029][  T183]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.935207][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.935404][  T183]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.935614][  T183] RIP: 0033:0x7f384aa5c08e
[    8.935799][  T183] 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
[    8.936314][  T183] RSP: 002b:00007fffa524a280 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    8.936568][  T183] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f384aa5c08e
[    8.936811][  T183] RDX: 0000000000000000 RSI: 00007fffa524a330 RDI: 0000000000000005
[    8.937054][  T183] RBP: 00007fffa524a290 R08: 0000000000000000 R09: 0000000000000000
[    8.937302][  T183] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dbb3
[    8.937556][  T183] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffa524aa00
| [    9.032597][  T157] ------------[ cut here ]------------
| [    9.032815][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bash/157
| [    9.033142][  T157] Modules linked in: netconsole netdevsim
| [    9.033851][  T157] Tainted: [W]=WARN
[    9.033985][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.034195][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.034455][  T157] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.035088][  T157] RSP: 0018:ffa00000008174f8 EFLAGS: 00010286
[    9.035305][  T157] RAX: 00000000ffffffa6 RBX: ff11000009a46340 RCX: 1ff4000000102e65
[    9.035658][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009a463f0
[    9.035908][  T157] RBP: ff1100000ca62000 R08: 1fe2200001348c7f R09: ff11000004b90c48
[    9.036150][  T157] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.036439][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ca62000
[    9.036688][  T157] FS:  00007f5c811c5b80(0000) GS:ff11000092e05000(0000) knlGS:0000000000000000
[    9.036976][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.037183][  T157] CR2: 0000558ee32ae8e0 CR3: 0000000004abb004 CR4: 0000000000771ef0
[    9.037447][  T157] PKRU: 55555554
[    9.037570][  T157] Call Trace:
[    9.037693][  T157]  <TASK>
[    9.037778][  T157]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.037945][  T157]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.038071][  T157]  register_netdevice (net/core/dev.c:11488)
[    9.038239][  T157]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.038449][  T157]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.038618][  T157] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.038828][  T157] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.038994][  T157] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.039329][  T157]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.039499][  T157]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.039820][  T157]  ? is_module_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) kernel/module/main.c:3876 (discriminator 2))
[    9.039983][  T157]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.040107][  T157]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.040277][  T157]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.040606][  T157] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.040776][  T157]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    9.040940][  T157]  call_driver_probe (drivers/base/dd.c:629)
[    9.041101][  T157]  really_probe (drivers/base/dd.c:709)
[    9.041392][  T157]  ? driver_probe_device (drivers/base/dd.c:135)
[    9.041554][  T157]  __driver_probe_device (drivers/base/dd.c:871)
[    9.041717][  T157]  driver_probe_device (drivers/base/dd.c:901)
[    9.041878][  T157]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.042155][  T157]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.042322][  T157]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    9.042490][  T157]  __device_attach (drivers/base/dd.c:1101)
[    9.042653][  T157]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.042931][  T157]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    9.043132][  T157]  ? 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)
[    9.043297][  T157]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    9.043581][  T157]  device_initial_probe (drivers/base/dd.c:1156)
[    9.043745][  T157]  bus_probe_device (drivers/base/bus.c:613)
[    9.043908][  T157]  device_add (drivers/base/core.c:3706)
[    9.044070][  T157]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    9.044403][  T157]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    9.044565][  T157]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    9.044730][  T157] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.044932][  T157]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.045209][  T157]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    9.045423][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2))
[    9.045587][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.045751][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.046033][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.046194][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.046320][  T157]  new_sync_write (fs/read_write.c:595)
[    9.046488][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.046766][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.046928][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.047089][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.047261][  T157]  vfs_write (fs/read_write.c:688)
[    9.047508][  T157]  ksys_write (fs/read_write.c:740)
[    9.047630][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.047790][  T157]  ? 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)
[    9.047953][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.048240][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.048408][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.048572][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.048739][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.049056][  T157] RIP: 0033:0x7f5c8123708e
[    9.049225][  T157] 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
[    9.049931][  T157] RSP: 002b:00007ffea1675dc0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.050179][  T157] RAX: ffffffffffffffda RBX: 00007f5c813b9580 RCX: 00007f5c8123708e
[    9.050546][  T157] RDX: 0000000000000004 RSI: 0000558ef30c3bb0 RDI: 0000000000000001
[    9.050787][  T157] RBP: 00007ffea1675dd0 R08: 0000000000000000 R09: 0000000000000000
[    9.051033][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.051404][  T157] R13: 0000000000000004 R14: 0000558ef30c3bb0 R15: 0000000000000000
| [    9.066978][  T157] ------------[ cut here ]------------
| [    9.067189][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/157
| [    9.067532][  T157] Modules linked in: netconsole netdevsim
| [    9.068069][  T157] Tainted: [W]=WARN
[    9.068194][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.068417][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.068673][  T157] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.069256][  T157] RSP: 0018:ffa00000008174f8 EFLAGS: 00010286
[    9.069519][  T157] RAX: 00000000ffffffa6 RBX: ff11000009c4d240 RCX: 1ff4000000102e65
[    9.069767][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009c4d2f0
[    9.070010][  T157] RBP: ff1100001723a000 R08: 1fe2200001389a5f R09: ff11000004b90c48
[    9.070258][  T157] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.070509][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001723a000
[    9.070755][  T157] FS:  00007f5c811c5b80(0000) GS:ff11000092f05000(0000) knlGS:0000000000000000
[    9.071045][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.071298][  T157] CR2: 00007fe56a5ae2a0 CR3: 0000000004abb004 CR4: 0000000000771ef0
[    9.071551][  T157] PKRU: 55555554
[    9.071678][  T157] Call Trace:
[    9.071803][  T157]  <TASK>
[    9.071890][  T157]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.072056][  T157]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.072182][  T157]  register_netdevice (net/core/dev.c:11488)
[    9.072356][  T157]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.072559][  T157]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.072729][  T157] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.072939][  T157] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.073104][  T157] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.073311][  T157]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.073481][  T157]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.073687][  T157]  ? is_module_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) kernel/module/main.c:3876 (discriminator 2))
[    9.073853][  T157]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.073975][  T157]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.074142][  T157]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.074358][  T157] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.074526][  T157]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    9.074692][  T157]  call_driver_probe (drivers/base/dd.c:629)
[    9.074855][  T157]  really_probe (drivers/base/dd.c:709)
[    9.075020][  T157]  ? driver_probe_device (drivers/base/dd.c:135)
[    9.075182][  T157]  __driver_probe_device (drivers/base/dd.c:871)
[    9.075357][  T157]  driver_probe_device (drivers/base/dd.c:901)
[    9.075519][  T157]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.075684][  T157]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.075847][  T157]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    9.076014][  T157]  __device_attach (drivers/base/dd.c:1101)
[    9.076176][  T157]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.076342][  T157]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    9.076549][  T157]  ? 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)
[    9.076714][  T157]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    9.076877][  T157]  device_initial_probe (drivers/base/dd.c:1156)
[    9.077038][  T157]  bus_probe_device (drivers/base/bus.c:613)
[    9.077200][  T157]  device_add (drivers/base/core.c:3706)
[    9.077371][  T157]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    9.077576][  T157]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    9.077740][  T157]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    9.077904][  T157] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.078107][  T157]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.078272][  T157]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    9.078480][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2))
[    9.078647][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.078811][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.078974][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.079136][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.079261][  T157]  new_sync_write (fs/read_write.c:595)
[    9.079428][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.079589][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.079753][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.079914][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.080080][  T157]  vfs_write (fs/read_write.c:688)
[    9.080205][  T157]  ksys_write (fs/read_write.c:740)
[    9.080332][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.080499][  T157]  ? 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)
[    9.080660][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.080823][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.080986][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.081150][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.081319][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.081527][  T157] RIP: 0033:0x7f5c8123708e
[    9.081696][  T157] 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
[    9.082275][  T157] RSP: 002b:00007ffea1675df0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.082525][  T157] RAX: ffffffffffffffda RBX: 00007f5c813b9580 RCX: 00007f5c8123708e
[    9.082767][  T157] RDX: 0000000000000004 RSI: 0000558ef30c3bb0 RDI: 0000000000000001
[    9.083008][  T157] RBP: 00007ffea1675e00 R08: 0000000000000000 R09: 0000000000000000
[    9.083249][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.083496][  T157] R13: 0000000000000004 R14: 0000558ef30c3bb0 R15: 0000000000000000
| [    9.299645][  T199] ------------[ cut here ]------------
| [    9.299815][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/199
| [    9.300058][  T199] Modules linked in: netconsole netdevsim
| [    9.300487][  T199] Tainted: [W]=WARN
[    9.300589][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.300753][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.300918][  T199] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.301369][  T199] RSP: 0018:ffa00000006b6ff8 EFLAGS: 00010286
[    9.301531][  T199] RAX: 00000000ffffffa6 RBX: ff1100000d2a53c0 RCX: 1ff40000000d6dc5
[    9.301719][  T199] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d2a5470
[    9.301907][  T199] RBP: ff1100000ca62000 R08: 1fe2200001a54a8f R09: ff110000024a8b58
[    9.302097][  T199] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.302286][  T199] R13: 0000000000000000 R14: ffa00000006b7140 R15: ff11000017343bd0
[    9.302483][  T199] FS:  00007f82e0275840(0000) GS:ff11000092f05000(0000) knlGS:0000000000000000
[    9.302706][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.302864][  T199] CR2: 000000003de69988 CR3: 000000000ca2a005 CR4: 0000000000771ef0
[    9.303049][  T199] PKRU: 55555554
[    9.303143][  T199] Call Trace:
[    9.303241][  T199]  <TASK>
[    9.303309][  T199]  rtmsg_ifinfo_newnet (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4567)
[    9.303444][  T199]  __dev_change_net_namespace (net/core/dev.c:12635)
[    9.303600][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.303731][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.303857][  T199]  ? default_device_exit_batch (net/core/dev.c:13091)
[    9.304010][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.304134][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.304263][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.304393][  T199]  ? 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))
[    9.304519][  T199]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.304646][  T199]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.304771][  T199]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    9.304896][  T199]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.305020][  T199]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.305174][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.305304][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.305482][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.305607][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.305732][  T199]  ? __kernel_text_address (kernel/extable.c:79)
[    9.305858][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.305983][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.306105][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.306229][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.306362][  T199]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.306487][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.306609][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.306731][  T199]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.306855][  T199]  ? __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)
[    9.306979][  T199]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.307102][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.307227][  T199]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.307363][  T199]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.307491][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.307616][  T199]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.307742][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.307864][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.307987][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.308110][  T199]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.308233][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.308377][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.308500][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.308623][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.308746][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.308871][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.308997][  T199]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.309121][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.309250][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.309382][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.309507][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.309629][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.309754][  T199]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.309878][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.310002][  T199]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.310129][  T199]  ? 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))
[    9.310255][  T199]  ? 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))
[    9.310387][  T199]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.310511][  T199]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.310634][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.310758][  T199]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.310882][  T199]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.311005][  T199]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.311131][  T199]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.311262][  T199]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.311391][  T199]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.311544][  T199]  ? move_addr_to_kernel (net/socket.c:258)
[    9.311668][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.311791][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.311915][  T199]  ___sys_sendmsg (net/socket.c:2752)
[    9.312038][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.312193][  T199]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.312347][  T199]  __sys_sendmsg (net/socket.c:2784)
[    9.312478][  T199]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.312601][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.312758][  T199]  ? 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)
[    9.312881][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.313008][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.313134][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.313264][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.313394][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.313547][  T199] RIP: 0033:0x7f82e04af08e
[    9.313679][  T199] 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
[    9.314121][  T199] RSP: 002b:00007ffc62b2d6f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.314312][  T199] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f82e04af08e
[    9.314502][  T199] RDX: 0000000000000000 RSI: 00007ffc62b2d7a0 RDI: 0000000000000005
[    9.314689][  T199] RBP: 00007ffc62b2d700 R08: 0000000000000000 R09: 0000000000000000
[    9.314875][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dbb3
[    9.315060][  T199] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc62b2de60
| [    9.317819][  T199] ------------[ cut here ]------------
| [    9.317949][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/199
| [    9.318167][  T199] Modules linked in: netconsole netdevsim
| [    9.318566][  T199] Tainted: [W]=WARN
[    9.318665][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.318822][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.318986][  T199] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.319443][  T199] RSP: 0018:ffa00000006b6fc0 EFLAGS: 00010286
[    9.319602][  T199] RAX: 00000000ffffffa6 RBX: ff110000055ab0c0 RCX: 1ff40000000d6dbe
[    9.319789][  T199] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000055ab170
[    9.319976][  T199] RBP: ff1100000ca62000 R08: 1fe2200000ab562f R09: ff110000024a8b58
[    9.320164][  T199] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.320363][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa4159ab0
[    9.320554][  T199] FS:  00007f82e0275840(0000) GS:ff11000092f05000(0000) knlGS:0000000000000000
[    9.320774][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.320931][  T199] CR2: 000000003de69988 CR3: 000000000ca2a005 CR4: 0000000000771ef0
[    9.321122][  T199] PKRU: 55555554
[    9.321217][  T199] Call Trace:
[    9.321316][  T199]  <TASK>
[    9.321386][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.321513][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.321609][  T199]  __dev_change_net_namespace (net/core/dev.c:12695)
[    9.321769][  T199]  ? default_device_exit_batch (net/core/dev.c:13091)
[    9.321924][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.322052][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.322177][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.322307][  T199]  ? 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))
[    9.322438][  T199]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.322563][  T199]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.322691][  T199]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    9.322818][  T199]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.322946][  T199]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.323101][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.323226][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.323361][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.323485][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.323610][  T199]  ? __kernel_text_address (kernel/extable.c:79)
[    9.323737][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.323865][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.323989][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.324116][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.324244][  T199]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.324374][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.324498][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.324621][  T199]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.324747][  T199]  ? __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)
[    9.324873][  T199]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.324998][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.325127][  T199]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.325255][  T199]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.325387][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.325515][  T199]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.325643][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.325768][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.325894][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.326019][  T199]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.326145][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.326276][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.326406][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.326531][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.326657][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.326785][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.326911][  T199]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.327036][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.327162][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.327292][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.327424][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.327549][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.327676][  T199]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.327801][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.327927][  T199]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.328055][  T199]  ? 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))
[    9.328181][  T199]  ? 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))
[    9.328313][  T199]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.328444][  T199]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.328569][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.328698][  T199]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.328824][  T199]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.328950][  T199]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.329078][  T199]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.329203][  T199]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.329332][  T199]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.329497][  T199]  ? move_addr_to_kernel (net/socket.c:258)
[    9.329626][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.329751][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.329877][  T199]  ___sys_sendmsg (net/socket.c:2752)
[    9.330001][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.330158][  T199]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.330298][  T199]  __sys_sendmsg (net/socket.c:2784)
[    9.330426][  T199]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.330553][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.330710][  T199]  ? 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)
[    9.330836][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.330960][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.331084][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.331209][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.331339][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.331499][  T199] RIP: 0033:0x7f82e04af08e
[    9.331632][  T199] 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
[    9.332076][  T199] RSP: 002b:00007ffc62b2d6f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.332270][  T199] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f82e04af08e
[    9.332463][  T199] RDX: 0000000000000000 RSI: 00007ffc62b2d7a0 RDI: 0000000000000005
[    9.332651][  T199] RBP: 00007ffc62b2d700 R08: 0000000000000000 R09: 0000000000000000
[    9.332838][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dbb3
[    9.333023][  T199] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc62b2de60
| [    9.431390][  T201] ------------[ cut here ]------------
| [    9.431581][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/201
| [    9.431895][  T201] Modules linked in: netconsole netdevsim
| [    9.432334][  T201] Tainted: [W]=WARN
[    9.432511][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.432677][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.432857][  T201] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.433324][  T201] RSP: 0018:ffa00000006d7020 EFLAGS: 00010286
[    9.433567][  T201] RAX: 00000000ffffffa6 RBX: ff1100000c64b240 RCX: 1ff40000000dadca
[    9.433763][  T201] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c64b2f0
[    9.433958][  T201] RBP: ff1100000ca62000 R08: 1fe22000018c965f R09: ff110000056dae80
[    9.434158][  T201] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.434364][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.434562][  T201] FS:  00007f8c90637840(0000) GS:ff11000092f05000(0000) knlGS:0000000000000000
[    9.434793][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.434958][  T201] CR2: 0000000021329988 CR3: 000000000c66e003 CR4: 0000000000771ef0
[    9.435155][  T201] PKRU: 55555554
[    9.435259][  T201] Call Trace:
[    9.435362][  T201]  <TASK>
[    9.435430][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.435564][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.435665][  T201]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.435796][  T201]  __dev_notify_flags (net/core/dev.c:9787)
[    9.435929][  T201]  ? netif_change_name (net/core/dev.c:1495)
[    9.436060][  T201]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.436192][  T201]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.436327][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.436462][  T201]  ? 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))
[    9.436595][  T201]  netif_change_flags (net/core/dev.c:9820)
[    9.436727][  T201]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.436860][  T201]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.436991][  T201]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.437153][  T201]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.437290][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.437425][  T201]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.437555][  T201]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.437686][  T201]  ? __kernel_text_address (kernel/extable.c:79)
[    9.437817][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.437949][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.438080][  T201]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.438213][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.438347][  T201]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.438484][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.438615][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.438746][  T201]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.438877][  T201]  ? __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)
[    9.439008][  T201]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.439138][  T201]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.439277][  T201]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.439415][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.439549][  T201]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.439682][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.439813][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.439943][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.440073][  T201]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.440203][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.440344][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.440481][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.440612][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.440742][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.440875][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.441007][  T201]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.441138][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.441274][  T201]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.441411][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.441545][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.441676][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.441809][  T201]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.441940][  T201]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.442072][  T201]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.442205][  T201]  ? 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))
[    9.442341][  T201]  ? 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))
[    9.442479][  T201]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.442611][  T201]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.442742][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.442875][  T201]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.443008][  T201]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.443140][  T201]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.443278][  T201]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.443417][  T201]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.443548][  T201]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.443710][  T201]  ? move_addr_to_kernel (net/socket.c:258)
[    9.443841][  T201]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.443972][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.444104][  T201]  ___sys_sendmsg (net/socket.c:2752)
[    9.444240][  T201]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.444410][  T201]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.444553][  T201]  __sys_sendmsg (net/socket.c:2784)
[    9.444684][  T201]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.444813][  T201]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.444978][  T201]  ? 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)
[    9.445109][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.445245][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.445384][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.445515][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.445647][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.445808][  T201] RIP: 0033:0x7f8c9087108e
[    9.445945][  T201] 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
[    9.446422][  T201] RSP: 002b:00007fffebeffdc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.446620][  T201] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8c9087108e
[    9.446817][  T201] RDX: 0000000000000000 RSI: 00007fffebeffe70 RDI: 0000000000000005
[    9.447012][  T201] RBP: 00007fffebeffdd0 R08: 0000000000000000 R09: 0000000000000000
[    9.447210][  T201] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dbb3
[    9.447416][  T201] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffebf00530
| [    9.504244][  T204] ------------[ cut here ]------------
| [    9.504409][  T204] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/204
| [    9.504638][  T204] Modules linked in: netconsole netdevsim
| [    9.505151][  T204] Tainted: [W]=WARN
[    9.505265][  T204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.505447][  T204] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.505631][  T204] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.506125][  T204] RSP: 0018:ffa00000006f7020 EFLAGS: 00010286
[    9.506305][  T204] RAX: 00000000ffffffa6 RBX: ff11000014ce4f40 RCX: 1ff40000000dedca
[    9.506520][  T204] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000014ce4ff0
[    9.506725][  T204] RBP: ff1100001723a000 R08: 1fe220000299c9ff R09: ff1100000c6a2e80
[    9.506930][  T204] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[    9.507133][  T204] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.507346][  T204] FS:  00007f1bfe4e2840(0000) GS:ff11000092d85000(0000) knlGS:0000000000000000
[    9.507589][  T204] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.507760][  T204] CR2: 00007f1bfe7b21a0 CR3: 000000000c66c004 CR4: 0000000000771ef0
[    9.507962][  T204] PKRU: 55555554
[    9.508063][  T204] Call Trace:
[    9.508163][  T204]  <TASK>
[    9.508234][  T204]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[    9.508382][  T204]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.508519][  T204]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.508622][  T204]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.508757][  T204]  __dev_notify_flags (net/core/dev.c:9787)
[    9.508892][  T204]  ? netif_change_name (net/core/dev.c:1495)
[    9.509025][  T204]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.509160][  T204]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.509301][  T204]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.509496][  T204]  ? 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))
[    9.509634][  T204]  netif_change_flags (net/core/dev.c:9820)
[    9.509822][  T204]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.509958][  T204]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.510090][  T204]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.510261][  T204]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.510446][  T204]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.510579][  T204]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.510710][  T204]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.510840][  T204]  ? __kernel_text_address (kernel/extable.c:79)
[    9.510970][  T204]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.511102][  T204]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.511241][  T204]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.511431][  T204]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.511563][  T204]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.511694][  T204]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.511824][  T204]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.511953][  T204]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.512084][  T204]  ? __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)
[    9.512214][  T204]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.512348][  T204]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.512534][  T204]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.512667][  T204]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.512801][  T204]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.512932][  T204]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.513062][  T204]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.513194][  T204]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.513331][  T204]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.513544][  T204]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.513677][  T204]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.513806][  T204]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.513936][  T204]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.514067][  T204]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.514198][  T204]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.514334][  T204]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.514543][  T204]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.514675][  T204]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.514805][  T204]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.514940][  T204]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.515068][  T204]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.515199][  T204]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.515334][  T204]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.515552][  T204]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.515687][  T204]  ? 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))
[    9.515818][  T204]  ? 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))
[    9.515952][  T204]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.516084][  T204]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.516213][  T204]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.516348][  T204]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.516567][  T204]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.516699][  T204]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.516833][  T204]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.516964][  T204]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.517093][  T204]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.517261][  T204]  ? move_addr_to_kernel (net/socket.c:258)
[    9.517458][  T204]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.517587][  T204]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.517721][  T204]  ___sys_sendmsg (net/socket.c:2752)
[    9.517852][  T204]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.518014][  T204]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.518157][  T204]  __sys_sendmsg (net/socket.c:2784)
[    9.518291][  T204]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.518520][  T204]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.518687][  T204]  ? 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)
[    9.518819][  T204]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.518950][  T204]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.519081][  T204]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.519211][  T204]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.519346][  T204]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.519518][  T204] RIP: 0033:0x7f1bfe71c08e
[    9.519655][  T204] 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
[    9.520116][  T204] RSP: 002b:00007ffd35056b80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.520316][  T204] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f1bfe71c08e
[    9.520517][  T204] RDX: 0000000000000000 RSI: 00007ffd35056c30 RDI: 0000000000000005
[    9.520713][  T204] RBP: 00007ffd35056b90 R08: 0000000000000000 R09: 0000000000000000
[    9.520907][  T204] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10dbb3
[    9.521102][  T204] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd350572f0
| [    9.595981][  T157] ------------[ cut here ]------------
| [    9.596249][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/157
| [    9.596690][  T157] Modules linked in: netconsole netdevsim
| [    9.597372][  T157] Tainted: [W]=WARN
[    9.597541][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.597785][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.598035][  T157] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.598654][  T157] RSP: 0018:ffa00000008175a8 EFLAGS: 00010286
[    9.598901][  T157] RAX: 00000000ffffffa6 RBX: ff110000055e04c0 RCX: 1ff4000000102e7b
[    9.599181][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000055e0570
[    9.599480][  T157] RBP: ff1100000ca62000 R08: 1fe2200000abc0af R09: ff11000004b90c70
[    9.599763][  T157] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[    9.600046][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000817698
[    9.600342][  T157] FS:  00007f5c811c5b80(0000) GS:ff11000092e85000(0000) knlGS:0000000000000000
[    9.600679][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.600925][  T157] CR2: 0000558ef30af81c CR3: 0000000004abb005 CR4: 0000000000771ef0
[    9.601211][  T157] PKRU: 55555554
[    9.601397][  T157] Call Trace:
[    9.601563][  T157]  <TASK>
[    9.601693][  T157]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.601902][  T157]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.602070][  T157]  netif_close_many (net/core/dev.c:1804)
[    9.602281][  T157]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.602500][  T157]  ? __dev_close_many (net/core/dev.c:1781)
[    9.602704][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.602912][  T157]  netif_close_many_and_unlock (net/core/dev.c:12330)
[    9.603117][  T157]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[    9.603375][  T157]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[    9.603619][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.603824][  T157]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.604028][  T157]  ? __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)
[    9.604231][  T157]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.604457][  T157]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.604699][  T157]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.604905][  T157]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.605109][  T157]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.605322][  T157]  ? 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)
[    9.605543][  T157]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.605748][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.605953][  T157]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.606161][  T157] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.606389][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.606595][  T157] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.606840][  T157] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.607086][  T157] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.607300][  T157]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.607561][  T157]  bus_remove_device (drivers/base/bus.c:657)
[    9.607770][  T157]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.607975][  T157]  ? device_remove_file (drivers/base/core.c:3073)
[    9.608183][  T157]  device_del (drivers/base/core.c:3895)
[    9.608382][  T157]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.608593][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.608798][  T157]  device_unregister (drivers/base/core.c:3936)
[    9.609003][  T157] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.609256][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2))
[    9.609475][  T157]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.609721][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.609924][  T157]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.610130][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.610344][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.610582][  T157]  new_sync_write (fs/read_write.c:595)
[    9.610790][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.610996][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.611203][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.611431][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.611640][  T157]  vfs_write (fs/read_write.c:688)
[    9.611809][  T157]  ksys_write (fs/read_write.c:740)
[    9.611977][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.612182][  T157]  ? 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)
[    9.612407][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.612617][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.612828][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.613031][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.613245][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.613502][  T157] RIP: 0033:0x7f5c8123708e
[    9.613714][  T157] 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
[    9.614321][  T157] RSP: 002b:00007ffea1676180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.614619][  T157] RAX: ffffffffffffffda RBX: 00007f5c813b9580 RCX: 00007f5c8123708e
[    9.614916][  T157] RDX: 0000000000000004 RSI: 0000558ef30c3bb0 RDI: 0000000000000001
[    9.615198][  T157] RBP: 00007ffea1676190 R08: 0000000000000000 R09: 0000000000000000
[    9.615496][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.615778][  T157] R13: 0000000000000004 R14: 0000558ef30c3bb0 R15: 0000000000000000
| [    9.621646][  T157] ------------[ cut here ]------------
| [    9.621877][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/157
| [    9.622283][  T157] Modules linked in: netconsole netdevsim
| [    9.622933][  T157] Tainted: [W]=WARN
[    9.623093][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.623335][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.623640][  T157] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.624224][  T157] RSP: 0018:ffa0000000817728 EFLAGS: 00010286
[    9.624482][  T157] RAX: 00000000ffffffa6 RBX: ff110000055e1e40 RCX: 1ff4000000102eab
[    9.624750][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000055e1ef0
[    9.625023][  T157] RBP: ff1100000ca62000 R08: 1fe2200000abc3df R09: ff11000004b90c48
[    9.625302][  T157] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.625629][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.625972][  T157] FS:  00007f5c811c5b80(0000) GS:ff11000092e85000(0000) knlGS:0000000000000000
[    9.626423][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.626721][  T157] CR2: 0000558ef30af81c CR3: 0000000004abb005 CR4: 0000000000771ef0
[    9.627053][  T157] PKRU: 55555554
[    9.627279][  T157] Call Trace:
[    9.627511][  T157]  <TASK>
[    9.627696][  T157]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.627997][  T157]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.628300][  T157]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.628575][  T157]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.628836][  T157]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.629093][  T157]  ? 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)
[    9.629378][  T157]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.629638][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.629897][  T157]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.630160][  T157] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.630439][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.630701][  T157] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.630999][  T157] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.631304][  T157] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.631580][  T157]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.631877][  T157]  bus_remove_device (drivers/base/bus.c:657)
[    9.632140][  T157]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.632430][  T157]  ? device_remove_file (drivers/base/core.c:3073)
[    9.632691][  T157]  device_del (drivers/base/core.c:3895)
[    9.632913][  T157]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.633172][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.633454][  T157]  device_unregister (drivers/base/core.c:3936)
[    9.633713][  T157] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.634010][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2))
[    9.634278][  T157]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.634588][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.634847][  T157]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.635104][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.635387][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.635611][  T157]  new_sync_write (fs/read_write.c:595)
[    9.635874][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.636135][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.636418][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.636676][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.636938][  T157]  vfs_write (fs/read_write.c:688)
[    9.637159][  T157]  ksys_write (fs/read_write.c:740)
[    9.637454][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.637794][  T157]  ? 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)
[    9.638059][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.638265][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.638476][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.638670][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.638867][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.639097][  T157] RIP: 0033:0x7f5c8123708e
[    9.639306][  T157] 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
[    9.639895][  T157] RSP: 002b:00007ffea1676180 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.640167][  T157] RAX: ffffffffffffffda RBX: 00007f5c813b9580 RCX: 00007f5c8123708e
[    9.640459][  T157] RDX: 0000000000000004 RSI: 0000558ef30c3bb0 RDI: 0000000000000001
[    9.640732][  T157] RBP: 00007ffea1676190 R08: 0000000000000000 R09: 0000000000000000
[    9.641002][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.641279][  T157] R13: 0000000000000004 R14: 0000558ef30c3bb0 R15: 0000000000000000
| [    9.676803][  T157] ------------[ cut here ]------------
| [    9.677044][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/157
| [    9.677470][  T157] Modules linked in: netconsole netdevsim
| [    9.677991][  T157] Tainted: [W]=WARN
[    9.678112][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.678316][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.678532][  T157] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.679099][  T157] RSP: 0018:ffa00000008175a8 EFLAGS: 00010286
[    9.679304][  T157] RAX: 00000000ffffffa6 RBX: ff11000014c7d6c0 RCX: 1ff4000000102e7b
[    9.679545][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000014c7d770
[    9.679780][  T157] RBP: ff1100001723a000 R08: 1fe220000298faef R09: ff11000004b90c70
[    9.680016][  T157] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[    9.680256][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000817698
[    9.680500][  T157] FS:  00007f5c811c5b80(0000) GS:ff11000092f05000(0000) knlGS:0000000000000000
[    9.680778][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.680975][  T157] CR2: 00007f5db10b6ab0 CR3: 0000000004abb001 CR4: 0000000000771ef0
[    9.681213][  T157] PKRU: 55555554
[    9.681338][  T157] Call Trace:
[    9.681482][  T157]  <TASK>
[    9.681565][  T157]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.681726][  T157]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.681847][  T157]  netif_close_many (net/core/dev.c:1804)
[    9.682004][  T157]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.682162][  T157]  ? __dev_close_many (net/core/dev.c:1781)
[    9.682325][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.682492][  T157]  netif_close_many_and_unlock (net/core/dev.c:12330)
[    9.682652][  T157]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[    9.682847][  T157]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[    9.683058][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.683216][  T157]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.683385][  T157]  ? __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)
[    9.683541][  T157]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.683704][  T157]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.683899][  T157]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.684058][  T157]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.684214][  T157]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.684382][  T157]  ? 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)
[    9.684542][  T157]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.684700][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.684856][  T157]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.685015][  T157] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.685175][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.685338][  T157] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.685540][  T157] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.685737][  T157] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.685896][  T157]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.686093][  T157]  bus_remove_device (drivers/base/bus.c:657)
[    9.686253][  T157]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.686416][  T157]  ? device_remove_file (drivers/base/core.c:3073)
[    9.686574][  T157]  device_del (drivers/base/core.c:3895)
[    9.686693][  T157]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.686853][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.687011][  T157]  device_unregister (drivers/base/core.c:3936)
[    9.687168][  T157] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.687372][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2))
[    9.687528][  T157]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.687723][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.687880][  T157]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.688037][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.688195][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.688319][  T157]  new_sync_write (fs/read_write.c:595)
[    9.688482][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.688638][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.688795][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.688951][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.689112][  T157]  vfs_write (fs/read_write.c:688)
[    9.689233][  T157]  ksys_write (fs/read_write.c:740)
[    9.689365][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.689520][  T157]  ? 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)
[    9.689676][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.689831][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.689986][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.690141][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.690301][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.690501][  T157] RIP: 0033:0x7f5c8123708e
[    9.690666][  T157] 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
[    9.691221][  T157] RSP: 002b:00007ffea1676280 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.691470][  T157] RAX: ffffffffffffffda RBX: 00007f5c813b9580 RCX: 00007f5c8123708e
[    9.691706][  T157] RDX: 0000000000000004 RSI: 0000558ef30c3bb0 RDI: 0000000000000001
[    9.691940][  T157] RBP: 00007ffea1676290 R08: 0000000000000000 R09: 0000000000000000
[    9.692173][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.692413][  T157] R13: 0000000000000004 R14: 0000558ef30c3bb0 R15: 0000000000000000
| [    9.697614][  T157] ------------[ cut here ]------------
| [    9.697804][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/157
| [    9.698097][  T157] Modules linked in: netconsole netdevsim
| [    9.698663][  T157] Tainted: [W]=WARN
[    9.698777][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.698995][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.699186][  T157] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.699725][  T157] RSP: 0018:ffa0000000817728 EFLAGS: 00010286
[    9.699910][  T157] RAX: 00000000ffffffa6 RBX: ff11000004e0c040 RCX: 1ff4000000102eab
[    9.700129][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004e0c0f0
[    9.700361][  T157] RBP: ff1100001723a000 R08: 1fe22000009c181f R09: ff11000004b90c48
[    9.700580][  T157] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.700799][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.701019][  T157] FS:  00007f5c811c5b80(0000) GS:ff11000092f05000(0000) knlGS:0000000000000000
[    9.701283][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.701475][  T157] CR2: 00007f5db10b6ab0 CR3: 0000000004abb001 CR4: 0000000000771ef0
[    9.701695][  T157] PKRU: 55555554
[    9.701805][  T157] Call Trace:
[    9.701916][  T157]  <TASK>
[    9.701993][  T157]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.702180][  T157]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.702435][  T157]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.702583][  T157]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.702731][  T157]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.702878][  T157]  ? 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)
[    9.703028][  T157]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.703175][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.703324][  T157]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.703537][  T157] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.703748][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.703898][  T157] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.704084][  T157] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.704273][  T157] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.704483][  T157]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.704669][  T157]  bus_remove_device (drivers/base/bus.c:657)
[    9.704818][  T157]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.704964][  T157]  ? device_remove_file (drivers/base/core.c:3073)
[    9.705112][  T157]  device_del (drivers/base/core.c:3895)
[    9.705224][  T157]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.705456][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.705603][  T157]  device_unregister (drivers/base/core.c:3936)
[    9.705750][  T157] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.705936][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2))
[    9.706083][  T157]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.706272][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.706542][  T157]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.706691][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.706839][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.706950][  T157]  new_sync_write (fs/read_write.c:595)
[    9.707098][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.707247][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.707516][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.707662][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.707835][  T157]  vfs_write (fs/read_write.c:688)
[    9.707948][  T157]  ksys_write (fs/read_write.c:740)
[    9.708058][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.708203][  T157]  ? 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)
[    9.708475][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.708625][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.708771][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.708916][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.709062][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.709248][  T157] RIP: 0033:0x7f5c8123708e
[    9.709529][  T157] 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
[    9.710048][  T157] RSP: 002b:00007ffea1676280 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.710272][  T157] RAX: ffffffffffffffda RBX: 00007f5c813b9580 RCX: 00007f5c8123708e
[    9.710617][  T157] RDX: 0000000000000004 RSI: 0000558ef30c3bb0 RDI: 0000000000000001
[    9.710837][  T157] RBP: 00007ffea1676290 R08: 0000000000000000 R09: 0000000000000000
[    9.711054][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.711276][  T157] R13: 0000000000000004 R14: 0000558ef30c3bb0 R15: 0000000000000000
| [    9.867829][   T68] ------------[ cut here ]------------
| [    9.868011][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [    9.868269][   T68] Modules linked in: netconsole netdevsim
| [    9.868719][   T68] Tainted: [W]=WARN
[    9.868813][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.868966][   T68] Workqueue: netns cleanup_net
[    9.869105][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.869275][   T68] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.869811][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[    9.869969][   T68] RAX: 00000000ffffffa6 RBX: ff110000096776c0 RCX: 1ff4000000092eaf
[    9.870153][   T68] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009677770
[    9.870340][   T68] RBP: ff110000074f9000 R08: 1fe22000012ceeef R09: ff11000008a22ed0
[    9.870603][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[    9.870787][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e8
[    9.870972][   T68] FS:  0000000000000000(0000) GS:ff11000092d85000(0000) knlGS:0000000000000000
[    9.871197][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.871427][   T68] CR2: 00007f87f4b50574 CR3: 0000000011539002 CR4: 0000000000771ef0
[    9.871612][   T68] PKRU: 55555554
[    9.871705][   T68] Call Trace:
[    9.871797][   T68]  <TASK>
[    9.871936][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.872061][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.872156][   T68]  netif_close_many (net/core/dev.c:1804)
[    9.872284][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.872493][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.872618][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.872740][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[    9.872863][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[    9.873068][   T68]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.873193][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[    9.873423][   T68]  ? 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)
[    9.873546][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    9.873668][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[    9.873791][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.873945][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    9.874071][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    9.874193][   T68]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[    9.874321][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    9.874531][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    9.874656][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    9.874777][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    9.874899][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    9.875022][   T68]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    9.875143][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.875282][   T68]  cleanup_net (net/core/net_namespace.c:702)
[    9.875481][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[    9.875603][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    9.875728][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.875851][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.875975][   T68]  process_one_work (kernel/workqueue.c:3314)
[    9.876100][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.876223][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.876522][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.876646][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.876768][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    9.876891][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.877012][   T68]  kthread (kernel/kthread.c:436)
[    9.877104][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.877265][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.877484][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.877608][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.877760][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.877882][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.878004][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.891147][   T68] ------------[ cut here ]------------
| [    9.891347][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: 1/68
| [    9.891737][   T68] Modules linked in: netconsole netdevsim
| [    9.892272][   T68] Tainted: [W]=WARN
[    9.892630][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.892825][   T68] Workqueue: netns cleanup_net
[    9.892997][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.893198][   T68] 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 a8 cc 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 a8 cc f0 ff       	call   0xfffffffffff0cce4
  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 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.893735][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[    9.893933][   T68] RAX: 00000000ffffffa6 RBX: ff1100000cbf0f40 RCX: 1ff4000000092ed5
[    9.894157][   T68] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000cbf0ff0
[    9.894401][   T68] RBP: ff110000074f9000 R08: 1fe220000197e1ff R09: ff11000008a22ed0
[    9.894623][   T68] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.894845][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.895069][   T68] FS:  0000000000000000(0000) GS:ff11000092e85000(0000) knlGS:0000000000000000
[    9.895330][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.895541][   T68] CR2: 00007fdc7eea5620 CR3: 0000000011539003 CR4: 0000000000771ef0
[    9.895766][   T68] PKRU: 55555554
[    9.895899][   T68] Call Trace:
[    9.896033][   T68]  <TASK>
[    9.896140][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.896348][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.896557][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    9.896726][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    9.896896][   T68]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[    9.897061][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    9.897228][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    9.897417][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    9.897582][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    9.897752][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    9.897919][   T68]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    9.898085][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.898263][   T68]  cleanup_net (net/core/net_namespace.c:702)
[    9.898456][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[    9.898630][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    9.898799][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.898965][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.899136][   T68]  process_one_work (kernel/workqueue.c:3314)
[    9.899315][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.899494][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.899665][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.899834][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.899999][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[    9.900166][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.900363][   T68]  kthread (kernel/kthread.c:436)
[    9.900501][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.900699][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.900865][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.901033][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.901227][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.901414][   T68]  ? kthread_affine_node (kernel/kthread.c:378)


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:unregister_netdevice_many_notify:default_device_exit_batch
rtmsg_ifinfo_build_skb:rtmsg_ifinfo_newnet:__dev_change_net_namespace:rtnl_newlink:rtnetlink_rcv_msg
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:netif_close_many_and_unlock:unregister_netdevice_many_notify
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:unregister_netdevice_queue:nsim_destroy:__nsim_dev_port_del
rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:nsim_init_netdevsim:nsim_create
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_change_net_namespace:rtnl_newlink:rtnetlink_rcv_msg