======================================
| [    8.991077][  T182] ------------[ cut here ]------------
| [    8.991338][  T182] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/182
| [    8.991679][  T182] Modules linked in: netconsole netdevsim
| [    8.992255][  T182] Tainted: [W]=WARN
[    8.992401][  T182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.992670][  T182] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.992900][  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
[    8.993410][  T182] RSP: 0018:ffa0000000617aa8 EFLAGS: 00010286
[    8.993637][  T182] RAX: 00000000ffffffa6 RBX: ff1100000946cc40 RCX: 1ff40000000c2f1b
[    8.993891][  T182] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000946ccf0
[    8.994132][  T182] RBP: ff11000007b51000 R08: 1fe220000128d99f R09: ff11000004dbd180
[    8.994374][  T182] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.994630][  T182] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007b51000
[    8.994880][  T182] FS:  00007ff11c0bc840(0000) GS:ff11000087c85000(0000) knlGS:0000000000000000
[    8.995156][  T182] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.995367][  T182] CR2: 0000000000479648 CR3: 000000000bc3f002 CR4: 0000000000771ef0
[    8.995628][  T182] PKRU: 55555554
[    8.995772][  T182] Call Trace:
[    8.995926][  T182]  <TASK>
[    8.996043][  T182]  ? ip6_route_dev_notify (net/ipv6/route.c:6484)
[    8.996225][  T182]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.996408][  T182]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.996601][  T182]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.996750][  T182]  register_netdevice (net/core/dev.c:11488)
[    8.996940][  T182]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.997155][  T182]  register_netdev (net/core/dev.c:11552)
[    8.997333][  T182]  loopback_net_init (drivers/net/loopback.c:218)
[    8.997526][  T182]  ops_init (net/core/net_namespace.c:137)
[    8.997676][  T182]  setup_net (net/core/net_namespace.c:446)
[    8.997824][  T182]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.998009][  T182]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.998190][  T182]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.998370][  T182]  copy_net_ns (net/core/net_namespace.c:579)
[    8.998565][  T182]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.998746][  T182]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.998931][  T182]  ksys_unshare (kernel/fork.c:3243)
[    8.999112][  T182]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.999289][  T182]  ? __ia32_sys_open (fs/open.c:1374)
[    8.999480][  T182]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.999658][  T182]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.999835][  T182]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.000023][  T182]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.000202][  T182]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.000382][  T182]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.000607][  T182] RIP: 0033:0x7ff11c37ebcb
[    9.000792][  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
[    9.001311][  T182] RSP: 002b:00007ffec92fa0b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.001570][  T182] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff11c37ebcb
[    9.001814][  T182] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.002065][  T182] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.002306][  T182] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffec92fc2e0
[    9.002559][  T182] R13: 0000000000000001 R14: 00007ff11c0bc6f8 R15: 00007ffec92fc807
| [    9.027081][  T183] ------------[ cut here ]------------
| [    9.027243][  T183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/183
| [    9.027480][  T183] Modules linked in: netconsole netdevsim
| [    9.027956][  T183] Tainted: [W]=WARN
[    9.028055][  T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.028218][  T183] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.028389][  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
[    9.028862][  T183] RSP: 0018:ffa0000000517020 EFLAGS: 00010286
[    9.029027][  T183] RAX: 00000000ffffffa6 RBX: ff1100000946dcc0 RCX: 1ff40000000a2dca
[    9.029220][  T183] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000946dd70
[    9.029413][  T183] RBP: ff11000007b51000 R08: 1fe220000128dbaf R09: ff11000004dbae58
[    9.030043][  T183] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.030238][  T183] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.030436][  T183] FS:  00007f25df4da840(0000) GS:ff11000087d05000(0000) knlGS:0000000000000000
[    9.030664][  T183] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.030826][  T183] CR2: 000000003adda988 CR3: 000000000bf77005 CR4: 0000000000771ef0
[    9.031025][  T183] PKRU: 55555554
[    9.031122][  T183] Call Trace:
[    9.031219][  T183]  <TASK>
[    9.031286][  T183]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.031418][  T183]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.031522][  T183]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.031652][  T183]  __dev_notify_flags (net/core/dev.c:9787)
[    9.031784][  T183]  ? netif_change_name (net/core/dev.c:1495)
[    9.031919][  T183]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.032048][  T183]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.032175][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.032305][  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))
[    9.032441][  T183]  netif_change_flags (net/core/dev.c:9820)
[    9.032572][  T183]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.032703][  T183]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.032833][  T183]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.032968][  T183]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.033129][  T183]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.033258][  T183]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.033388][  T183]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.033523][  T183]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.033652][  T183]  ? __kernel_text_address (kernel/extable.c:79)
[    9.033781][  T183]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.033916][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.034074][  T183]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.034204][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.034335][  T183]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.034472][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.034600][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.034727][  T183]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.034861][  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)
[    9.034990][  T183]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.035118][  T183]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.035251][  T183]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.035384][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.035521][  T183]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.035652][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.035780][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.035914][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.036042][  T183]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.036171][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.036302][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.036437][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.036566][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.036695][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.036824][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.036958][  T183]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.037086][  T183]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.037213][  T183]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.037343][  T183]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.037482][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.037609][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.037740][  T183]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.037874][  T183]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.038002][  T183]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.038133][  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))
[    9.038262][  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))
[    9.038394][  T183]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.038528][  T183]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.038658][  T183]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.038788][  T183]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.038919][  T183]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.039047][  T183]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.039177][  T183]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.039306][  T183]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.039440][  T183]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.039600][  T183]  ? move_addr_to_kernel (net/socket.c:258)
[    9.039729][  T183]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.039862][  T183]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.039994][  T183]  ___sys_sendmsg (net/socket.c:2752)
[    9.040121][  T183]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.040287][  T183]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.040436][  T183]  __sys_sendmsg (net/socket.c:2784)
[    9.040565][  T183]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.040694][  T183]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.040868][  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)
[    9.041002][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.041132][  T183]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.041262][  T183]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.041392][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.041526][  T183]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.041686][  T183] RIP: 0033:0x7f25df71408e
[    9.041823][  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
[    9.042295][  T183] RSP: 002b:00007ffe2201d1b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.042506][  T183] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f25df71408e
[    9.042701][  T183] RDX: 0000000000000000 RSI: 00007ffe2201d260 RDI: 0000000000000005
[    9.042900][  T183] RBP: 00007ffe2201d1c0 R08: 0000000000000000 R09: 0000000000000000
[    9.043096][  T183] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d93a
[    9.043290][  T183] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe2201d930
| [    9.152339][  T157] ------------[ cut here ]------------
| [    9.152640][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: bash/157
| [    9.152983][  T157] Modules linked in: netconsole netdevsim
| [    9.153535][  T157] Tainted: [W]=WARN
[    9.153667][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.153882][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.154100][  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
[    9.154773][  T157] RSP: 0018:ffa00000008074f8 EFLAGS: 00010286
[    9.154991][  T157] RAX: 00000000ffffffa6 RBX: ff11000004ed6ac0 RCX: 1ff4000000100e65
[    9.155237][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004ed6b70
[    9.155564][  T157] RBP: ff1100000ca72000 R08: 1fe22000009dad6f R09: ff1100000bf80c48
[    9.155820][  T157] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.156078][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ca72000
[    9.156377][  T157] FS:  00007f74d19b5b80(0000) GS:ff11000087b85000(0000) knlGS:0000000000000000
[    9.156679][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.156894][  T157] CR2: 00005612e7ef9cb8 CR3: 000000000c7cb001 CR4: 0000000000771ef0
[    9.157142][  T157] PKRU: 55555554
[    9.157267][  T157] Call Trace:
[    9.157394][  T157]  <TASK>
[    9.157524][  T157]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.157695][  T157]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.157822][  T157]  register_netdevice (net/core/dev.c:11488)
[    9.157994][  T157]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.158198][  T157]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.158367][  T157] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.158585][  T157] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.158758][  T157] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.158966][  T157]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.159131][  T157]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.159337][  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))
[    9.159505][  T157]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.159632][  T157]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.159800][  T157]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.160017][  T157] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.160186][  T157]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    9.160352][  T157]  call_driver_probe (drivers/base/dd.c:629)
[    9.160523][  T157]  really_probe (drivers/base/dd.c:709)
[    9.160689][  T157]  ? driver_probe_device (drivers/base/dd.c:135)
[    9.160856][  T157]  __driver_probe_device (drivers/base/dd.c:871)
[    9.161021][  T157]  driver_probe_device (drivers/base/dd.c:901)
[    9.161194][  T157]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.161360][  T157]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.161530][  T157]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    9.161698][  T157]  __device_attach (drivers/base/dd.c:1101)
[    9.161864][  T157]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.162030][  T157]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    9.162235][  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)
[    9.162408][  T157]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    9.162581][  T157]  device_initial_probe (drivers/base/dd.c:1156)
[    9.162746][  T157]  bus_probe_device (drivers/base/bus.c:613)
[    9.162914][  T157]  device_add (drivers/base/core.c:3706)
[    9.163080][  T157]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    9.163287][  T157]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    9.163459][  T157]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    9.163629][  T157] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.163835][  T157]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.164003][  T157]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    9.164210][  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))
[    9.164377][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.164547][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.164712][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.164885][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.165009][  T157]  new_sync_write (fs/read_write.c:595)
[    9.165178][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.165345][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.165516][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.165680][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.165854][  T157]  vfs_write (fs/read_write.c:688)
[    9.165981][  T157]  ksys_write (fs/read_write.c:740)
[    9.166110][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.166282][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.166454][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.166620][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.166786][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.166957][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.167123][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.167326][  T157] RIP: 0033:0x7f74d1a2708e
[    9.167509][  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
[    9.168099][  T157] RSP: 002b:00007ffff21ace60 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.168350][  T157] RAX: ffffffffffffffda RBX: 00007f74d1ba9580 RCX: 00007f74d1a2708e
[    9.168608][  T157] RDX: 0000000000000004 RSI: 00005612e7ef8cb0 RDI: 0000000000000001
[    9.168859][  T157] RBP: 00007ffff21ace70 R08: 0000000000000000 R09: 0000000000000000
[    9.169105][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.169351][  T157] R13: 0000000000000004 R14: 00005612e7ef8cb0 R15: 0000000000000000
| [    9.184941][  T157] ------------[ cut here ]------------
| [    9.185177][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: bash/157
| [    9.185550][  T157] Modules linked in: netconsole netdevsim
| [    9.186121][  T157] Tainted: [W]=WARN
[    9.186250][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.186470][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.186684][  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
[    9.187274][  T157] RSP: 0018:ffa00000008074f8 EFLAGS: 00010286
[    9.187513][  T157] RAX: 00000000ffffffa6 RBX: ff1100000bd77840 RCX: 1ff4000000100e65
[    9.187764][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000bd778f0
[    9.188018][  T157] RBP: ff1100000cb9a000 R08: 1fe22000017aef1f R09: ff1100000bf80c48
[    9.188276][  T157] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.188529][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000cb9a000
[    9.188779][  T157] FS:  00007f74d19b5b80(0000) GS:ff11000087b85000(0000) knlGS:0000000000000000
[    9.189077][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.189345][  T157] CR2: 00005612e7ef9cb8 CR3: 000000000c7cb001 CR4: 0000000000771ef0
[    9.189600][  T157] PKRU: 55555554
[    9.189723][  T157] Call Trace:
[    9.189847][  T157]  <TASK>
[    9.189938][  T157]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.190106][  T157]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.190233][  T157]  register_netdevice (net/core/dev.c:11488)
[    9.190402][  T157]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.190617][  T157]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.190785][  T157] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.190999][  T157] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.191167][  T157] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.191375][  T157]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.191551][  T157]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.191758][  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))
[    9.191932][  T157]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.192060][  T157]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.192228][  T157]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.192441][  T157] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.192610][  T157]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    9.192776][  T157]  call_driver_probe (drivers/base/dd.c:629)
[    9.192946][  T157]  really_probe (drivers/base/dd.c:709)
[    9.193110][  T157]  ? driver_probe_device (drivers/base/dd.c:135)
[    9.193274][  T157]  __driver_probe_device (drivers/base/dd.c:871)
[    9.193446][  T157]  driver_probe_device (drivers/base/dd.c:901)
[    9.193618][  T157]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.193783][  T157]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.193951][  T157]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    9.194121][  T157]  __device_attach (drivers/base/dd.c:1101)
[    9.194286][  T157]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.194455][  T157]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    9.194659][  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)
[    9.194825][  T157]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    9.194998][  T157]  device_initial_probe (drivers/base/dd.c:1156)
[    9.195163][  T157]  bus_probe_device (drivers/base/bus.c:613)
[    9.195328][  T157]  device_add (drivers/base/core.c:3706)
[    9.195500][  T157]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    9.195704][  T157]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    9.195871][  T157]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    9.196037][  T157] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.196284][  T157]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.196454][  T157]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    9.196661][  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))
[    9.196828][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.196997][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.197161][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.197326][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.197458][  T157]  new_sync_write (fs/read_write.c:595)
[    9.197629][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.197792][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.197997][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.198166][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.198335][  T157]  vfs_write (fs/read_write.c:688)
[    9.198468][  T157]  ksys_write (fs/read_write.c:740)
[    9.198594][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.198758][  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)
[    9.199022][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.199190][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.199356][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.199525][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.199691][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.199904][  T157] RIP: 0033:0x7f74d1a2708e
[    9.200076][  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
[    9.200668][  T157] RSP: 002b:00007ffff21ace90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.200921][  T157] RAX: ffffffffffffffda RBX: 00007f74d1ba9580 RCX: 00007f74d1a2708e
[    9.201167][  T157] RDX: 0000000000000004 RSI: 00005612e7ef8cb0 RDI: 0000000000000001
[    9.201431][  T157] RBP: 00007ffff21acea0 R08: 0000000000000000 R09: 0000000000000000
[    9.201808][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.202057][  T157] R13: 0000000000000004 R14: 00005612e7ef8cb0 R15: 0000000000000000
| [    9.413653][  T199] ------------[ cut here ]------------
| [    9.413890][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/199
| [    9.414172][  T199] Modules linked in: netconsole netdevsim
| [    9.414848][  T199] Tainted: [W]=WARN
[    9.415000][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.415210][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.415438][  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
[    9.415943][  T199] RSP: 0018:ffa00000006e6ff8 EFLAGS: 00010286
[    9.416154][  T199] RAX: 00000000ffffffa6 RBX: ff110000057cbcc0 RCX: 1ff40000000dcdc5
[    9.416390][  T199] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000057cbd70
[    9.416634][  T199] RBP: ff1100000ca72000 R08: 1fe2200000af97af R09: ff1100000bf85158
[    9.416880][  T199] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.417120][  T199] R13: 0000000000000000 R14: ffa00000006e7140 R15: ff11000002786350
[    9.417365][  T199] FS:  00007fc3cbadf840(0000) GS:ff11000087c85000(0000) knlGS:0000000000000000
[    9.417647][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.417858][  T199] CR2: 000000002ce2e988 CR3: 0000000004dc7001 CR4: 0000000000771ef0
[    9.418099][  T199] PKRU: 55555554
[    9.418241][  T199] Call Trace:
[    9.418383][  T199]  <TASK>
[    9.418510][  T199]  rtmsg_ifinfo_newnet (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4567)
[    9.418690][  T199]  __dev_change_net_namespace (net/core/dev.c:12635)
[    9.418900][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.419072][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.419247][  T199]  ? default_device_exit_batch (net/core/dev.c:13091)
[    9.419462][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.419636][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.419811][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.419996][  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))
[    9.420170][  T199]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.420347][  T199]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.420535][  T199]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    9.420718][  T199]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.420922][  T199]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.421135][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.421313][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.421502][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.421675][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.421849][  T199]  ? __kernel_text_address (kernel/extable.c:79)
[    9.422033][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.422208][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.422383][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.422570][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.422744][  T199]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.422924][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.423096][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.423269][  T199]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.423464][  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)
[    9.423641][  T199]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.423818][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.423997][  T199]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.424170][  T199]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.424347][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.424548][  T199]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.424737][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.424919][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.425094][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.425272][  T199]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.425456][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.425635][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.425809][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.425995][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.426170][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.426348][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.426540][  T199]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.426713][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.426898][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.427077][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.427257][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.427448][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.427629][  T199]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.427805][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.427996][  T199]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.428174][  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))
[    9.428353][  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))
[    9.428541][  T199]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.428715][  T199]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.428901][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.429080][  T199]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.429260][  T199]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.429452][  T199]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.429633][  T199]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.429810][  T199]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.429993][  T199]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.430194][  T199]  ? move_addr_to_kernel (net/socket.c:258)
[    9.430368][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.430560][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.430736][  T199]  ___sys_sendmsg (net/socket.c:2752)
[    9.430917][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.431123][  T199]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.431307][  T199]  __sys_sendmsg (net/socket.c:2784)
[    9.431495][  T199]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.431667][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.431914][  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)
[    9.432098][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.432276][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.432463][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.432639][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.432816][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.433029][  T199] RIP: 0033:0x7fc3cbd1908e
[    9.433213][  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
[    9.433730][  T199] RSP: 002b:00007fffd0966bd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.433977][  T199] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc3cbd1908e
[    9.434211][  T199] RDX: 0000000000000000 RSI: 00007fffd0966c80 RDI: 0000000000000005
[    9.434461][  T199] RBP: 00007fffd0966be0 R08: 0000000000000000 R09: 0000000000000000
[    9.434695][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d93a
[    9.434939][  T199] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffd0967340
| [    9.438393][  T199] ------------[ cut here ]------------
| [    9.438598][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/199
| [    9.438886][  T199] Modules linked in: netconsole netdevsim
| [    9.439377][  T199] Tainted: [W]=WARN
[    9.439535][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.439742][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.439968][  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
[    9.440500][  T199] RSP: 0018:ffa00000006e6fc0 EFLAGS: 00010286
[    9.440714][  T199] RAX: 00000000ffffffa6 RBX: ff110000094779c0 RCX: 1ff40000000dcdbe
[    9.440963][  T199] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009477a70
[    9.441211][  T199] RBP: ff1100000ca72000 R08: 1fe220000128ef4f R09: ff1100000bf85158
[    9.441467][  T199] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.441708][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa8959ab0
[    9.441964][  T199] FS:  00007fc3cbadf840(0000) GS:ff11000087c85000(0000) knlGS:0000000000000000
[    9.442242][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.442474][  T199] CR2: 000000002ce2e988 CR3: 0000000004dc7001 CR4: 0000000000771ef0
[    9.442713][  T199] PKRU: 55555554
[    9.442862][  T199] Call Trace:
[    9.443006][  T199]  <TASK>
[    9.443120][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.443297][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.443457][  T199]  __dev_change_net_namespace (net/core/dev.c:12695)
[    9.443672][  T199]  ? default_device_exit_batch (net/core/dev.c:13091)
[    9.443886][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.444061][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.444237][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.444414][  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))
[    9.444607][  T199]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.444783][  T199]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.444966][  T199]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    9.445147][  T199]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.445323][  T199]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.445540][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.445715][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.445900][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.446081][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.446260][  T199]  ? __kernel_text_address (kernel/extable.c:79)
[    9.446452][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.446633][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.446812][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.447000][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.447179][  T199]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.447357][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.447553][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.447733][  T199]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.447921][  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)
[    9.448101][  T199]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.448282][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.448475][  T199]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.448652][  T199]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.448838][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.449029][  T199]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.449209][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.449388][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.449575][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.449749][  T199]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.449929][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.450110][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.450288][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.450476][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.450653][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.450830][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.451022][  T199]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.451202][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.451384][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.451577][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.451762][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.451960][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.452143][  T199]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.452323][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.452520][  T199]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.452703][  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))
[    9.452891][  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))
[    9.453079][  T199]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.453258][  T199]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.453446][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.453628][  T199]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.453807][  T199]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.453990][  T199]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.454169][  T199]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.454346][  T199]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.454541][  T199]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.454746][  T199]  ? move_addr_to_kernel (net/socket.c:258)
[    9.454931][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.455107][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.455285][  T199]  ___sys_sendmsg (net/socket.c:2752)
[    9.455475][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.455686][  T199]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.455884][  T199]  __sys_sendmsg (net/socket.c:2784)
[    9.456061][  T199]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.456238][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.456461][  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)
[    9.456638][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.456816][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.456997][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.457178][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.457356][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.457576][  T199] RIP: 0033:0x7fc3cbd1908e
[    9.457762][  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
[    9.458282][  T199] RSP: 002b:00007fffd0966bd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.458542][  T199] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc3cbd1908e
[    9.458787][  T199] RDX: 0000000000000000 RSI: 00007fffd0966c80 RDI: 0000000000000005
[    9.459038][  T199] RBP: 00007fffd0966be0 R08: 0000000000000000 R09: 0000000000000000
[    9.459282][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d93a
[    9.459538][  T199] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffd0967340
| [    9.566133][  T201] ------------[ cut here ]------------
| [    9.566388][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/201
| [    9.566721][  T201] Modules linked in: netconsole netdevsim
| [    9.567244][  T201] Tainted: [W]=WARN
[    9.567348][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.567526][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.567705][  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
[    9.568200][  T201] RSP: 0018:ffa00000006f7020 EFLAGS: 00010286
[    9.568382][  T201] RAX: 00000000ffffffa6 RBX: ff1100000bc0f540 RCX: 1ff40000000dedca
[    9.568586][  T201] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000bc0f5f0
[    9.568784][  T201] RBP: ff1100000ca72000 R08: 1fe2200001781ebf R09: ff11000004d95180
[    9.568987][  T201] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
[    9.569199][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.569400][  T201] FS:  00007f948f7e6840(0000) GS:ff11000087c05000(0000) knlGS:0000000000000000
[    9.569637][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.569808][  T201] CR2: 000000003b04d988 CR3: 000000000d6e3001 CR4: 0000000000771ef0
[    9.570011][  T201] PKRU: 55555554
[    9.570111][  T201] Call Trace:
[    9.570211][  T201]  <TASK>
[    9.570281][  T201]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[    9.570417][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.570615][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.570719][  T201]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.570856][  T201]  __dev_notify_flags (net/core/dev.c:9787)
[    9.570989][  T201]  ? netif_change_name (net/core/dev.c:1495)
[    9.571120][  T201]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.571252][  T201]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.571383][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.571605][  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))
[    9.571742][  T201]  netif_change_flags (net/core/dev.c:9820)
[    9.571918][  T201]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.572053][  T201]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.572186][  T201]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.572350][  T201]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.572540][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.572758][  T201]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.572897][  T201]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.573031][  T201]  ? __kernel_text_address (kernel/extable.c:79)
[    9.573166][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.573301][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.573499][  T201]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.573632][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.573765][  T201]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.573902][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.574034][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.574166][  T201]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.574297][  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)
[    9.574515][  T201]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.574647][  T201]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.574779][  T201]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.574917][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.575055][  T201]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.575191][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.575322][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.575464][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.575594][  T201]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.575725][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.575862][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.575993][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.576125][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.576256][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.576390][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.576526][  T201]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.576658][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.576788][  T201]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.576922][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.577053][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.577185][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.577318][  T201]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.577454][  T201]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.577585][  T201]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.577719][  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))
[    9.577850][  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))
[    9.577988][  T201]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.578123][  T201]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.578255][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.578386][  T201]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.578523][  T201]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.578655][  T201]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.578790][  T201]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.578926][  T201]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.579056][  T201]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.579218][  T201]  ? move_addr_to_kernel (net/socket.c:258)
[    9.579350][  T201]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.579486][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.579618][  T201]  ___sys_sendmsg (net/socket.c:2752)
[    9.579747][  T201]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.579914][  T201]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.580060][  T201]  __sys_sendmsg (net/socket.c:2784)
[    9.580192][  T201]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.580322][  T201]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.580495][  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)
[    9.580626][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.580759][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.580942][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.581075][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.581210][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.581373][  T201] RIP: 0033:0x7f948fa2008e
[    9.581518][  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
[    9.581993][  T201] RSP: 002b:00007ffcbb39a9a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.582195][  T201] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f948fa2008e
[    9.582393][  T201] RDX: 0000000000000000 RSI: 00007ffcbb39aa50 RDI: 0000000000000005
[    9.582596][  T201] RBP: 00007ffcbb39a9b0 R08: 0000000000000000 R09: 0000000000000000
[    9.582794][  T201] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d93a
[    9.582998][  T201] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffcbb39b110
| [    9.639924][  T205] ------------[ cut here ]------------
| [    9.640107][  T205] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/205
| [    9.640352][  T205] Modules linked in: netconsole netdevsim
| [    9.640919][  T205] Tainted: [W]=WARN
[    9.641023][  T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.641196][  T205] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.641376][  T205] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 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
[    9.641874][  T205] RSP: 0018:ffa0000000847020 EFLAGS: 00010286
[    9.642046][  T205] RAX: 00000000ffffffa6 RBX: ff110000052116c0 RCX: 1ff4000000108dca
[    9.642249][  T205] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000005211770
[    9.642455][  T205] RBP: ff1100000cb9a000 R08: 1fe2200000a422ef R09: ff1100000be9d180
[    9.642652][  T205] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[    9.642856][  T205] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.643059][  T205] FS:  00007f78e03c4840(0000) GS:ff11000087b85000(0000) knlGS:0000000000000000
[    9.643296][  T205] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.643472][  T205] CR2: 00000000195dc988 CR3: 000000000d6e3002 CR4: 0000000000771ef0
[    9.643675][  T205] PKRU: 55555554
[    9.643775][  T205] Call Trace:
[    9.643883][  T205]  <TASK>
[    9.643957][  T205]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[    9.644096][  T205]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.644233][  T205]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.644334][  T205]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.644473][  T205]  __dev_notify_flags (net/core/dev.c:9787)
[    9.644608][  T205]  ? netif_change_name (net/core/dev.c:1495)
[    9.644741][  T205]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.644882][  T205]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.645014][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.645149][  T205]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.645284][  T205]  netif_change_flags (net/core/dev.c:9820)
[    9.645420][  T205]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.645562][  T205]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.645696][  T205]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.645882][  T205]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.646016][  T205]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.646150][  T205]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.646283][  T205]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.646417][  T205]  ? __kernel_text_address (kernel/extable.c:79)
[    9.646558][  T205]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.646694][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.646827][  T205]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.646972][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.647106][  T205]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.647239][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.647372][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.647609][  T205]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.647743][  T205]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.647883][  T205]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.648016][  T205]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.648152][  T205]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.648288][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.648498][  T205]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.648633][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.648764][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.648901][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.649036][  T205]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.649171][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.649305][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.649531][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.649664][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.649796][  T205]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.649933][  T205]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.650065][  T205]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.650199][  T205]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.650333][  T205]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.650559][  T205]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.650694][  T205]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.650827][  T205]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.650965][  T205]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.651099][  T205]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.651232][  T205]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.651368][  T205]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.651571][  T205]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.651705][  T205]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.651839][  T205]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.651981][  T205]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.652119][  T205]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.652253][  T205]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.652388][  T205]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.652584][  T205]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.652716][  T205]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.652849][  T205]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.653018][  T205]  ? move_addr_to_kernel (net/socket.c:258)
[    9.653152][  T205]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.653287][  T205]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.653423][  T205]  ___sys_sendmsg (net/socket.c:2752)
[    9.653612][  T205]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.653777][  T205]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.653927][  T205]  __sys_sendmsg (net/socket.c:2784)
[    9.654061][  T205]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.654193][  T205]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.654359][  T205]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.654551][  T205]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.654685][  T205]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.654817][  T205]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.654954][  T205]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.655087][  T205]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.655253][  T205] RIP: 0033:0x7f78e05fe08e
[    9.655397][  T205] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.655922][  T205] RSP: 002b:00007fff4d368530 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.656125][  T205] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f78e05fe08e
[    9.656325][  T205] RDX: 0000000000000000 RSI: 00007fff4d3685e0 RDI: 0000000000000005
[    9.656533][  T205] RBP: 00007fff4d368540 R08: 0000000000000000 R09: 0000000000000000
[    9.656734][  T205] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10d93a
[    9.656938][  T205] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff4d368ca0
| [    9.744336][  T157] ------------[ cut here ]------------
| [    9.744597][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: bash/157
| [    9.744928][  T157] Modules linked in: netconsole netdevsim
| [    9.745472][  T157] Tainted: [W]=WARN
[    9.745594][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.745800][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.746015][  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
[    9.746679][  T157] RSP: 0018:ffa00000008075a8 EFLAGS: 00010286
[    9.746890][  T157] RAX: 00000000ffffffa6 RBX: ff11000005210340 RCX: 1ff4000000100e7b
[    9.747130][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000052103f0
[    9.747374][  T157] RBP: ff1100000ca72000 R08: 1fe2200000a4207f R09: ff1100000bf80c70
[    9.747670][  T157] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[    9.747914][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000807698
[    9.748156][  T157] FS:  00007f74d19b5b80(0000) GS:ff11000087b85000(0000) knlGS:0000000000000000
[    9.748454][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.748659][  T157] CR2: 00005612e7ee62cc CR3: 000000000c7cb001 CR4: 0000000000771ef0
[    9.748907][  T157] PKRU: 55555554
[    9.749027][  T157] Call Trace:
[    9.749148][  T157]  <TASK>
[    9.749232][  T157]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.749399][  T157]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.749532][  T157]  netif_close_many (net/core/dev.c:1804)
[    9.749693][  T157]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.749860][  T157]  ? __dev_close_many (net/core/dev.c:1781)
[    9.750023][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.750189][  T157]  netif_close_many_and_unlock (net/core/dev.c:12330)
[    9.750356][  T157]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[    9.750569][  T157]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[    9.750769][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.750934][  T157]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.751098][  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)
[    9.751261][  T157]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.751422][  T157]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.751629][  T157]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.751789][  T157]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.751955][  T157]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.752117][  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)
[    9.752281][  T157]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.752519][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.752746][  T157]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.752917][  T157] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.753084][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.753245][  T157] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.753523][  T157] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.753723][  T157] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.753891][  T157]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.754095][  T157]  bus_remove_device (drivers/base/bus.c:657)
[    9.754257][  T157]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.754417][  T157]  ? device_remove_file (drivers/base/core.c:3073)
[    9.754647][  T157]  device_del (drivers/base/core.c:3895)
[    9.754770][  T157]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.754943][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.755103][  T157]  device_unregister (drivers/base/core.c:3936)
[    9.755262][  T157] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.755534][  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))
[    9.755692][  T157]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.755899][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.756061][  T157]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.756223][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.756384][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.756575][  T157]  new_sync_write (fs/read_write.c:595)
[    9.756736][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.756901][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.757063][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.757222][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.757386][  T157]  vfs_write (fs/read_write.c:688)
[    9.757578][  T157]  ksys_write (fs/read_write.c:740)
[    9.757699][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.757861][  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)
[    9.758025][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.758190][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.758352][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.758584][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.758745][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.758947][  T157] RIP: 0033:0x7f74d1a2708e
[    9.759115][  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
[    9.759751][  T157] RSP: 002b:00007ffff21ad220 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.759997][  T157] RAX: ffffffffffffffda RBX: 00007f74d1ba9580 RCX: 00007f74d1a2708e
[    9.760258][  T157] RDX: 0000000000000004 RSI: 00005612e7ef8cb0 RDI: 0000000000000001
[    9.760566][  T157] RBP: 00007ffff21ad230 R08: 0000000000000000 R09: 0000000000000000
[    9.760805][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.761048][  T157] R13: 0000000000000004 R14: 00005612e7ef8cb0 R15: 0000000000000000
| [    9.766961][  T157] ------------[ cut here ]------------
| [    9.767172][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bash/157
| [    9.767501][  T157] Modules linked in: netconsole netdevsim
| [    9.768000][  T157] Tainted: [W]=WARN
[    9.768114][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.768355][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.768560][  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
[    9.769136][  T157] RSP: 0018:ffa0000000807728 EFLAGS: 00010286
[    9.769327][  T157] RAX: 00000000ffffffa6 RBX: ff1100000bc0e340 RCX: 1ff4000000100eab
[    9.769559][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000bc0e3f0
[    9.769785][  T157] RBP: ff1100000ca72000 R08: 1fe2200001781c7f R09: ff1100000bf80c48
[    9.770012][  T157] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.770237][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.770473][  T157] FS:  00007f74d19b5b80(0000) GS:ff11000087c05000(0000) knlGS:0000000000000000
[    9.770741][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.770934][  T157] CR2: 00007f8dbadda2a0 CR3: 000000000c7cb001 CR4: 0000000000771ef0
[    9.771161][  T157] PKRU: 55555554
[    9.771275][  T157] Call Trace:
[    9.771389][  T157]  <TASK>
[    9.771474][  T157]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.771669][  T157]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.771858][  T157]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.772009][  T157]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.772159][  T157]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.772309][  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)
[    9.772467][  T157]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.772617][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.772767][  T157]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.772926][  T157] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.773080][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.773231][  T157] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.773420][  T157] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.773654][  T157] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.773808][  T157]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.774004][  T157]  bus_remove_device (drivers/base/bus.c:657)
[    9.774153][  T157]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.774301][  T157]  ? device_remove_file (drivers/base/core.c:3073)
[    9.774459][  T157]  device_del (drivers/base/core.c:3895)
[    9.774574][  T157]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.774726][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.774881][  T157]  device_unregister (drivers/base/core.c:3936)
[    9.775029][  T157] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.775221][  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))
[    9.775373][  T157]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.775667][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.775819][  T157]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.775975][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.776125][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.776240][  T157]  new_sync_write (fs/read_write.c:595)
[    9.776394][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.776740][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.776899][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.777049][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.777203][  T157]  vfs_write (fs/read_write.c:688)
[    9.777320][  T157]  ksys_write (fs/read_write.c:740)
[    9.777520][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.777755][  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)
[    9.777915][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.778066][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.778216][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.778367][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.778609][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.778799][  T157] RIP: 0033:0x7f74d1a2708e
[    9.778960][  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
[    9.779499][  T157] RSP: 002b:00007ffff21ad220 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.779726][  T157] RAX: ffffffffffffffda RBX: 00007f74d1ba9580 RCX: 00007f74d1a2708e
[    9.779952][  T157] RDX: 0000000000000004 RSI: 00005612e7ef8cb0 RDI: 0000000000000001
[    9.780176][  T157] RBP: 00007ffff21ad230 R08: 0000000000000000 R09: 0000000000000000
[    9.780400][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.780627][  T157] R13: 0000000000000004 R14: 00005612e7ef8cb0 R15: 0000000000000000
| [    9.820842][  T157] ------------[ cut here ]------------
| [    9.821097][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: bash/157
| [    9.821419][  T157] Modules linked in: netconsole netdevsim
| [    9.822012][  T157] Tainted: [W]=WARN
[    9.822135][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.822338][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.822629][  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
[    9.823290][  T157] RSP: 0018:ffa00000008075a8 EFLAGS: 00010286
[    9.823561][  T157] RAX: 00000000ffffffa6 RBX: ff1100000c155840 RCX: 1ff4000000100e7b
[    9.823797][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c1558f0
[    9.824037][  T157] RBP: ff1100000cb9a000 R08: 1fe220000182ab1f R09: ff1100000bf80c70
[    9.824273][  T157] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[    9.824632][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000807698
[    9.824872][  T157] FS:  00007f74d19b5b80(0000) GS:ff11000087c05000(0000) knlGS:0000000000000000
[    9.825152][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.825351][  T157] CR2: 00007f8dbadda2a0 CR3: 000000000c7cb001 CR4: 0000000000771ef0
[    9.825661][  T157] PKRU: 55555554
[    9.825782][  T157] Call Trace:
[    9.825906][  T157]  <TASK>
[    9.825990][  T157]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.826153][  T157]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.826275][  T157]  netif_close_many (net/core/dev.c:1804)
[    9.826501][  T157]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.826663][  T157]  ? __dev_close_many (net/core/dev.c:1781)
[    9.826823][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.826989][  T157]  netif_close_many_and_unlock (net/core/dev.c:12330)
[    9.827150][  T157]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[    9.827349][  T157]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[    9.827615][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.827774][  T157]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.827939][  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)
[    9.828102][  T157]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.828261][  T157]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.828527][  T157]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.828688][  T157]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.828847][  T157]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.829009][  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)
[    9.829171][  T157]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.829330][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.829507][  T157]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.829670][  T157] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.829832][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.829998][  T157] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.830199][  T157] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.830400][  T157] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.830607][  T157]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.830812][  T157]  bus_remove_device (drivers/base/bus.c:657)
[    9.830979][  T157]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.831137][  T157]  ? device_remove_file (drivers/base/core.c:3073)
[    9.831298][  T157]  device_del (drivers/base/core.c:3895)
[    9.831418][  T157]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.831587][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.831749][  T157]  device_unregister (drivers/base/core.c:3936)
[    9.831914][  T157] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.832115][  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))
[    9.832275][  T157]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.832481][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.832640][  T157]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.832801][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.832966][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.833089][  T157]  new_sync_write (fs/read_write.c:595)
[    9.833250][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.833411][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.833579][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.833738][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.833906][  T157]  vfs_write (fs/read_write.c:688)
[    9.834030][  T157]  ksys_write (fs/read_write.c:740)
[    9.834151][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.834313][  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)
[    9.834479][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.834640][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.834800][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.834964][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.835126][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.835325][  T157] RIP: 0033:0x7f74d1a2708e
[    9.835496][  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
[    9.836069][  T157] RSP: 002b:00007ffff21ad320 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.836312][  T157] RAX: ffffffffffffffda RBX: 00007f74d1ba9580 RCX: 00007f74d1a2708e
[    9.836556][  T157] RDX: 0000000000000004 RSI: 00005612e7ef8cb0 RDI: 0000000000000001
[    9.836797][  T157] RBP: 00007ffff21ad330 R08: 0000000000000000 R09: 0000000000000000
[    9.837055][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.837295][  T157] R13: 0000000000000004 R14: 00005612e7ef8cb0 R15: 0000000000000000
| [    9.844671][  T157] ------------[ cut here ]------------
| [    9.844884][  T157] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/157
| [    9.845188][  T157] Modules linked in: netconsole netdevsim
| [    9.845776][  T157] Tainted: [W]=WARN
[    9.845905][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.846096][  T157] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.846292][  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
[    9.846838][  T157] RSP: 0018:ffa0000000807728 EFLAGS: 00010286
[    9.847034][  T157] RAX: 00000000ffffffa6 RBX: ff1100000a28f240 RCX: 1ff4000000100eab
[    9.847259][  T157] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a28f2f0
[    9.847491][  T157] RBP: ff1100000cb9a000 R08: 1fe2200001451e5f R09: ff1100000bf80c48
[    9.847714][  T157] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.847942][  T157] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.848167][  T157] FS:  00007f74d19b5b80(0000) GS:ff11000087d05000(0000) knlGS:0000000000000000
[    9.848437][  T157] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.848629][  T157] CR2: 00007f74d1b75888 CR3: 000000000c7cb005 CR4: 0000000000771ef0
[    9.848860][  T157] PKRU: 55555554
[    9.848974][  T157] Call Trace:
[    9.849087][  T157]  <TASK>
[    9.849165][  T157]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.849358][  T157]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.849549][  T157]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.849700][  T157]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.849850][  T157]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.850003][  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)
[    9.850158][  T157]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.850308][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.850464][  T157]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.850616][  T157] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.850769][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.850927][  T157] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.851115][  T157] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.851305][  T157] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.851526][  T157]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.851716][  T157]  bus_remove_device (drivers/base/bus.c:657)
[    9.851876][  T157]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.852026][  T157]  ? device_remove_file (drivers/base/core.c:3073)
[    9.852179][  T157]  device_del (drivers/base/core.c:3895)
[    9.852295][  T157]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.852511][  T157]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.852663][  T157]  device_unregister (drivers/base/core.c:3936)
[    9.852812][  T157] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.853006][  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))
[    9.853188][  T157]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.853377][  T157]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.853628][  T157]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.853777][  T157]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.853930][  T157]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.854043][  T157]  new_sync_write (fs/read_write.c:595)
[    9.854194][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.854346][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.854603][  T157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.854751][  T157]  ? ksys_write (fs/read_write.c:740)
[    9.854909][  T157]  vfs_write (fs/read_write.c:688)
[    9.855026][  T157]  ksys_write (fs/read_write.c:740)
[    9.855140][  T157]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.855289][  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)
[    9.855443][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.855593][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.855743][  T157]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.855897][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.856049][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.856234][  T157] RIP: 0033:0x7f74d1a2708e
[    9.856393][  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
[    9.856935][  T157] RSP: 002b:00007ffff21ad320 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.857160][  T157] RAX: ffffffffffffffda RBX: 00007f74d1ba9580 RCX: 00007f74d1a2708e
[    9.857384][  T157] RDX: 0000000000000004 RSI: 00005612e7ef8cb0 RDI: 0000000000000001
[    9.857611][  T157] RBP: 00007ffff21ad330 R08: 0000000000000000 R09: 0000000000000000
[    9.857836][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.858065][  T157] R13: 0000000000000004 R14: 00005612e7ef8cb0 R15: 0000000000000000
| [   10.006970][   T12] ------------[ cut here ]------------
| [   10.007174][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   10.007480][   T12] Modules linked in: netconsole netdevsim
| [   10.007931][   T12] Tainted: [W]=WARN
[   10.008025][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.008179][   T12] Workqueue: netns cleanup_net
[   10.008318][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.008488][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 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
[   10.008940][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   10.009095][   T12] RAX: 00000000ffffffa6 RBX: ff11000009476940 RCX: 1ff4000000018eaf
[   10.009280][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000094769f0
[   10.009470][   T12] RBP: ff11000007b51000 R08: 1fe220000128ed3f R09: ff11000001b051d0
[   10.009654][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   10.009836][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e8
[   10.010027][   T12] FS:  0000000000000000(0000) GS:ff11000087b85000(0000) knlGS:0000000000000000
[   10.010246][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.010402][   T12] CR2: 00007f1c11d13574 CR3: 0000000036b39005 CR4: 0000000000771ef0
[   10.010595][   T12] PKRU: 55555554
[   10.010688][   T12] Call Trace:
[   10.010782][   T12]  <TASK>
[   10.010901][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.011029][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.011126][   T12]  netif_close_many (net/core/dev.c:1804)
[   10.011251][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.011378][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.011509][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.011631][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   10.011756][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   10.011916][   T12]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   10.012043][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   10.012197][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   10.012320][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   10.012448][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   10.012574][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.012729][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   10.012856][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   10.012981][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   10.013102][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   10.013226][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   10.013347][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   10.013540][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   10.013756][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   10.013949][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   10.014077][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.014203][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   10.014326][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   10.014526][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   10.014677][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.014805][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.014932][   T12]  process_one_work (kernel/workqueue.c:3314)
[   10.015061][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   10.015184][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.015323][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.015531][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.015655][   T12]  kthread (kernel/kthread.c:436)
[   10.015749][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.015904][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.016027][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.016225][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   10.016380][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   10.016583][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.016706][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.019977][   T12] ------------[ cut here ]------------
| [   10.020112][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [   10.020347][   T12] Modules linked in: netconsole netdevsim
| [   10.020748][   T12] Tainted: [W]=WARN
[   10.020841][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.021027][   T12] Workqueue: netns cleanup_net
[   10.021160][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.021316][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 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
[   10.021740][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   10.021895][   T12] RAX: 00000000ffffffa6 RBX: ff11000004ed6940 RCX: 1ff4000000018ed5
[   10.022117][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004ed69f0
[   10.022313][   T12] RBP: ff11000007b51000 R08: 1fe22000009dad3f R09: ff11000001b051d0
[   10.022508][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   10.022687][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.022869][   T12] FS:  0000000000000000(0000) GS:ff11000087c05000(0000) knlGS:0000000000000000
[   10.023072][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.023219][   T12] CR2: 00007faf3892b620 CR3: 0000000036b39006 CR4: 0000000000771ef0
[   10.023404][   T12] PKRU: 55555554
[   10.023543][   T12] Call Trace:
[   10.023632][   T12]  <TASK>
[   10.023694][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.023845][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.023999][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   10.024118][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   10.024239][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   10.024359][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   10.024563][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   10.024680][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   10.024797][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   10.024920][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   10.025037][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   10.025154][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.025276][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   10.025394][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   10.025591][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   10.025781][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.025902][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.026021][   T12]  process_one_work (kernel/workqueue.c:3314)
[   10.026142][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   10.026263][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.026388][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.026583][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.026700][   T12]  kthread (kernel/kthread.c:436)
[   10.026788][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.026939][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.027220][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.027345][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   10.027578][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   10.027784][   T12]  ? 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