======================================
| xx__-> [    9.098721][  T173] ------------[ cut here ]------------
| [    9.099070][  T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/173
| [    9.099310][  T173] Modules linked in: netdevsim
| [    9.099737][  T173] Tainted: [W]=WARN
[    9.099849][  T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.100032][  T173] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.100204][  T173] 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
[    9.100672][  T173] RSP: 0018:ffa0000000617aa8 EFLAGS: 00010286
[    9.100861][  T173] RAX: 00000000ffffffa6 RBX: ff1100000baae7c0 RCX: 1ff40000000c2f1b
[    9.101098][  T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000baae870
[    9.101293][  T173] RBP: ff11000008544000 R08: 1fe2200001755d0f R09: ff1100000ca55180
[    9.101502][  T173] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.101692][  T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008544000
[    9.102061][  T173] FS:  00007ff6eae35840(0000) GS:ff11000089385000(0000) knlGS:0000000000000000
[    9.102382][  T173] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.102541][  T173] CR2: 0000000000479648 CR3: 000000000d43f005 CR4: 0000000000771ef0
[    9.102731][  T173] PKRU: 55555554
[    9.102837][  T173] Call Trace:
[    9.102936][  T173]  <TASK>
[    9.103004][  T173]  ? ip6_route_dev_notify (net/ipv6/route.c:6484)
[    9.103139][  T173]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.103276][  T173]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.103405][  T173]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.103503][  T173]  register_netdevice (net/core/dev.c:11488)
[    9.103631][  T173]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.103800][  T173]  register_netdev (net/core/dev.c:11552)
[    9.103926][  T173]  loopback_net_init (drivers/net/loopback.c:218)
[    9.104055][  T173]  ops_init (net/core/net_namespace.c:137)
[    9.104182][  T173]  setup_net (net/core/net_namespace.c:446)
[    9.104284][  T173]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.104677][  T173]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.104819][  T173]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.104949][  T173]  copy_net_ns (net/core/net_namespace.c:579)
[    9.105085][  T173]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.105219][  T173]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.105963][  T173]  ksys_unshare (kernel/fork.c:3243)
[    9.106112][  T173]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.106246][  T173]  ? __ia32_sys_open (fs/open.c:1374)
[    9.106459][  T173]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.106591][  T173]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.106721][  T173]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.106862][  T173]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.107075][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.107212][  T173]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.107372][  T173] RIP: 0033:0x7ff6eb0f7bcb
[    9.107510][  T173] 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
[    9.108069][  T173] RSP: 002b:00007ffcc9cb1a18 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.108359][  T173] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ff6eb0f7bcb
[    9.108549][  T173] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.108749][  T173] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.109031][  T173] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffcc9cb3c40
[    9.109219][  T173] R13: 0000000000000001 R14: 00007ff6eae356f8 R15: 00007ffcc9cb480b
| [    9.142366][  T174] ------------[ cut here ]------------
| [    9.142526][  T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/174
| [    9.142766][  T174] Modules linked in: netdevsim
| [    9.143160][  T174] Tainted: [W]=WARN
[    9.143259][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.143416][  T174] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.143585][  T174] 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
[    9.144074][  T174] RSP: 0018:ffa0000000667020 EFLAGS: 00010286
[    9.144235][  T174] RAX: 00000000ffffffa6 RBX: ff110000095e3240 RCX: 1ff40000000ccdca
[    9.144422][  T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000095e32f0
[    9.144608][  T174] RBP: ff11000008544000 R08: 1fe22000012bc65f R09: ff1100000bb30b58
[    9.144805][  T174] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.145013][  T174] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.145201][  T174] FS:  00007f32b5e6f840(0000) GS:ff11000089505000(0000) knlGS:0000000000000000
[    9.145419][  T174] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.145576][  T174] CR2: 0000000029038988 CR3: 000000000ae77004 CR4: 0000000000771ef0
[    9.145776][  T174] PKRU: 55555554
[    9.145870][  T174] Call Trace:
[    9.145964][  T174]  <TASK>
[    9.146029][  T174]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.146157][  T174]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.146251][  T174]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.146376][  T174]  __dev_notify_flags (net/core/dev.c:9787)
[    9.146517][  T174]  ? netif_change_name (net/core/dev.c:1495)
[    9.146641][  T174]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.146775][  T174]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.146917][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.147043][  T174]  ? 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))
[    9.147170][  T174]  netif_change_flags (net/core/dev.c:9820)
[    9.147295][  T174]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.147418][  T174]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.147546][  T174]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.147671][  T174]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.147837][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.147962][  T174]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.148087][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.148213][  T174]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.148338][  T174]  ? __kernel_text_address (kernel/extable.c:79)
[    9.148464][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.148590][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.148713][  T174]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.148848][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.148973][  T174]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.149097][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.149219][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.149342][  T174]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.149478][  T174]  ? __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)
[    9.149603][  T174]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.149757][  T174]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.149887][  T174]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.150013][  T174]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.150141][  T174]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.150267][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.150392][  T174]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.150528][  T174]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.150653][  T174]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.150787][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.150925][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.151049][  T174]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.151172][  T174]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.151296][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.151423][  T174]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.151547][  T174]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.151690][  T174]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.151825][  T174]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.151947][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.152073][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.152197][  T174]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.152331][  T174]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.152456][  T174]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.152581][  T174]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.152708][  T174]  ? 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))
[    9.152854][  T174]  ? 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))
[    9.152979][  T174]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.153105][  T174]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.153230][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.153359][  T174]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.153486][  T174]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.153617][  T174]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.153750][  T174]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.153881][  T174]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.154003][  T174]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.154157][  T174]  ? move_addr_to_kernel (net/socket.c:258)
[    9.154283][  T174]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.154407][  T174]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.154536][  T174]  ___sys_sendmsg (net/socket.c:2752)
[    9.154660][  T174]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.154822][  T174]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.154959][  T174]  __sys_sendmsg (net/socket.c:2784)
[    9.155085][  T174]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.155209][  T174]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.155368][  T174]  ? 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)
[    9.155493][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.155618][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.155742][  T174]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.155876][  T174]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.156000][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.156153][  T174] RIP: 0033:0x7f32b60a908e
[    9.156286][  T174] 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
[    9.156770][  T174] RSP: 002b:00007ffc74813840 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.156973][  T174] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f32b60a908e
[    9.157161][  T174] RDX: 0000000000000000 RSI: 00007ffc748138f0 RDI: 0000000000000005
[    9.157344][  T174] RBP: 00007ffc74813850 R08: 0000000000000000 R09: 0000000000000000
[    9.157529][  T174] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10da78
[    9.157716][  T174] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc74813fc0
| [    9.258584][  T156] ------------[ cut here ]------------
| [    9.258896][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/156
| [    9.259217][  T156] Modules linked in: netdevsim
| [    9.259722][  T156] Tainted: [W]=WARN
[    9.259886][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.260084][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.260289][  T156] 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
[    9.260857][  T156] RSP: 0018:ffa00000008374f8 EFLAGS: 00010286
[    9.261061][  T156] RAX: 00000000ffffffa6 RBX: ff1100000c8f41c0 RCX: 1ff4000000106e65
[    9.261299][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c8f4270
[    9.261542][  T156] RBP: ff1100000d0fa000 R08: 1fe220000191e84f R09: ff11000009b8af48
[    9.261784][  T156] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.262017][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d0fa000
[    9.262253][  T156] FS:  00007f2b4c9f3b80(0000) GS:ff11000089505000(0000) knlGS:0000000000000000
[    9.262529][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.262727][  T156] CR2: 000056008cbc68e0 CR3: 000000000c0d2005 CR4: 0000000000771ef0
[    9.262971][  T156] PKRU: 55555554
[    9.263091][  T156] Call Trace:
[    9.263212][  T156]  <TASK>
[    9.263293][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.263453][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.263574][  T156]  register_netdevice (net/core/dev.c:11488)
[    9.263733][  T156]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.263939][  T156]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.264100][  T156] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.264304][  T156] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.264463][  T156] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.264661][  T156]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.264830][  T156]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.265028][  T156]  ? 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))
[    9.265189][  T156]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.265307][  T156]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.265470][  T156]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.265669][  T156] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.265840][  T156]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    9.265998][  T156]  call_driver_probe (drivers/base/dd.c:629)
[    9.266158][  T156]  really_probe (drivers/base/dd.c:709)
[    9.266314][  T156]  ? driver_probe_device (drivers/base/dd.c:135)
[    9.266469][  T156]  __driver_probe_device (drivers/base/dd.c:871)
[    9.266625][  T156]  driver_probe_device (drivers/base/dd.c:901)
[    9.266790][  T156]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.266948][  T156]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.267106][  T156]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    9.267265][  T156]  __device_attach (drivers/base/dd.c:1101)
[    9.267419][  T156]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.267575][  T156]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    9.267822][  T156]  ? 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)
[    9.267979][  T156]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    9.268137][  T156]  device_initial_probe (drivers/base/dd.c:1156)
[    9.268292][  T156]  bus_probe_device (drivers/base/bus.c:613)
[    9.268449][  T156]  device_add (drivers/base/core.c:3706)
[    9.268606][  T156]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    9.268807][  T156]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    9.268963][  T156]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    9.269121][  T156] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.269316][  T156]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.269473][  T156]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    9.269668][  T156]  ? 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))
[    9.269836][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.269998][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.270155][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.270311][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.270428][  T156]  new_sync_write (fs/read_write.c:595)
[    9.270587][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.270742][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.270947][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.271102][  T156]  ? ksys_write (fs/read_write.c:740)
[    9.271261][  T156]  vfs_write (fs/read_write.c:688)
[    9.271380][  T156]  ksys_write (fs/read_write.c:740)
[    9.271498][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.271653][  T156]  ? 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)
[    9.271821][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.271978][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.272134][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.272291][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.272447][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.272641][  T156] RIP: 0033:0x7f2b4ca6508e
[    9.272831][  T156] 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
[    9.273383][  T156] RSP: 002b:00007ffdfdd0bc80 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.273622][  T156] RAX: ffffffffffffffda RBX: 00007f2b4cbe7580 RCX: 00007f2b4ca6508e
[    9.273864][  T156] RDX: 0000000000000004 RSI: 00005600a6ce84e0 RDI: 0000000000000001
[    9.274098][  T156] RBP: 00007ffdfdd0bc90 R08: 0000000000000000 R09: 0000000000000000
[    9.274332][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.274563][  T156] R13: 0000000000000004 R14: 00005600a6ce84e0 R15: 0000000000000000
| [    9.289259][  T156] ------------[ cut here ]------------
| [    9.289459][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/156
| [    9.289840][  T156] Modules linked in: netdevsim
| [    9.290392][  T156] Tainted: [W]=WARN
[    9.290511][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.290706][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.290933][  T156] 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
[    9.291487][  T156] RSP: 0018:ffa00000008374f8 EFLAGS: 00010286
[    9.291689][  T156] RAX: 00000000ffffffa6 RBX: ff1100000c98d540 RCX: 1ff4000000106e65
[    9.291931][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c98d5f0
[    9.292166][  T156] RBP: ff1100000d592000 R08: 1fe2200001931abf R09: ff11000009b8af48
[    9.292399][  T156] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.292631][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d592000
[    9.292875][  T156] FS:  00007f2b4c9f3b80(0000) GS:ff11000089505000(0000) knlGS:0000000000000000
[    9.293149][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.293344][  T156] CR2: 000056008cbc68e0 CR3: 000000000c0d2005 CR4: 0000000000771ef0
[    9.293583][  T156] PKRU: 55555554
[    9.293700][  T156] Call Trace:
[    9.293826][  T156]  <TASK>
[    9.293907][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.294065][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.294184][  T156]  register_netdevice (net/core/dev.c:11488)
[    9.294343][  T156]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.294540][  T156]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.294699][  T156] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.294908][  T156] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.295065][  T156] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.295261][  T156]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.295417][  T156]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.295612][  T156]  ? 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))
[    9.295783][  T156]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.295901][  T156]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.296060][  T156]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.296259][  T156] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.296419][  T156]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    9.296576][  T156]  call_driver_probe (drivers/base/dd.c:629)
[    9.296732][  T156]  really_probe (drivers/base/dd.c:709)
[    9.296902][  T156]  ? driver_probe_device (drivers/base/dd.c:135)
[    9.297057][  T156]  __driver_probe_device (drivers/base/dd.c:871)
[    9.297217][  T156]  driver_probe_device (drivers/base/dd.c:901)
[    9.297374][  T156]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.297532][  T156]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.297689][  T156]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    9.297860][  T156]  __device_attach (drivers/base/dd.c:1101)
[    9.298020][  T156]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.298182][  T156]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    9.298378][  T156]  ? 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)
[    9.298535][  T156]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    9.298694][  T156]  device_initial_probe (drivers/base/dd.c:1156)
[    9.298858][  T156]  bus_probe_device (drivers/base/bus.c:613)
[    9.299016][  T156]  device_add (drivers/base/core.c:3706)
[    9.299180][  T156]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    9.299377][  T156]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    9.299535][  T156]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    9.299695][  T156] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.299898][  T156]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.300056][  T156]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    9.300261][  T156]  ? 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))
[    9.300419][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.300578][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.300733][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.300901][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.301019][  T156]  new_sync_write (fs/read_write.c:595)
[    9.301181][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.301339][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.301505][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.301662][  T156]  ? ksys_write (fs/read_write.c:740)
[    9.301832][  T156]  vfs_write (fs/read_write.c:688)
[    9.301954][  T156]  ksys_write (fs/read_write.c:740)
[    9.302075][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.302233][  T156]  ? 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)
[    9.302391][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.302552][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.302711][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.302879][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.303038][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.303235][  T156] RIP: 0033:0x7f2b4ca6508e
[    9.303398][  T156] 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
[    9.303961][  T156] RSP: 002b:00007ffdfdd0bcb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.304200][  T156] RAX: ffffffffffffffda RBX: 00007f2b4cbe7580 RCX: 00007f2b4ca6508e
[    9.304434][  T156] RDX: 0000000000000004 RSI: 00005600a6ce84e0 RDI: 0000000000000001
[    9.304668][  T156] RBP: 00007ffdfdd0bcc0 R08: 0000000000000000 R09: 0000000000000000
[    9.304913][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.305147][  T156] R13: 0000000000000004 R14: 00005600a6ce84e0 R15: 0000000000000000
| [    9.513123][  T190] ------------[ cut here ]------------
| [    9.513313][  T190] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/190
| [    9.513542][  T190] Modules linked in: netdevsim
| [    9.513952][  T190] Tainted: [W]=WARN
[    9.514048][  T190] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.514207][  T190] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.514372][  T190] 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
[    9.514829][  T190] RSP: 0018:ffa00000006e6ff8 EFLAGS: 00010286
[    9.514990][  T190] RAX: 00000000ffffffa6 RBX: ff1100000baafe40 RCX: 1ff40000000dcdc5
[    9.515179][  T190] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000baafef0
[    9.515370][  T190] RBP: ff1100000d0fa000 R08: 1fe2200001755fdf R09: ff1100000d0a0b58
[    9.515562][  T190] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.515760][  T190] R13: 0000000000000000 R14: ffa00000006e7140 R15: ff1100000c0fe350
[    9.515952][  T190] FS:  00007f1e99274840(0000) GS:ff11000089505000(0000) knlGS:0000000000000000
[    9.516176][  T190] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.516336][  T190] CR2: 00000000277ea988 CR3: 000000000ca41006 CR4: 0000000000771ef0
[    9.516525][  T190] PKRU: 55555554
[    9.516623][  T190] Call Trace:
[    9.516718][  T190]  <TASK>
[    9.516794][  T190]  rtmsg_ifinfo_newnet (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4567)
[    9.516926][  T190]  __dev_change_net_namespace (net/core/dev.c:12635)
[    9.517093][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.517226][  T190]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.517356][  T190]  ? default_device_exit_batch (net/core/dev.c:13091)
[    9.517512][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.517638][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.517775][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.517901][  T190]  ? 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))
[    9.518030][  T190]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.518157][  T190]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.518287][  T190]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    9.518413][  T190]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.518541][  T190]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.518701][  T190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.518837][  T190]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.518961][  T190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.519086][  T190]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.519213][  T190]  ? __kernel_text_address (kernel/extable.c:79)
[    9.519340][  T190]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.519467][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.519594][  T190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.519720][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.519857][  T190]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.519982][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.520107][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.520232][  T190]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.520360][  T190]  ? __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)
[    9.520488][  T190]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.520616][  T190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.520797][  T190]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.520925][  T190]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.521053][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.521184][  T190]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.521313][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.521439][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.521601][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.521731][  T190]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.521939][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.522065][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.522189][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.522312][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.522435][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.522560][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.522685][  T190]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.522825][  T190]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.522952][  T190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.523075][  T190]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.523203][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.523328][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.523451][  T190]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.523574][  T190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.523698][  T190]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.523835][  T190]  ? 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))
[    9.523956][  T190]  ? 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))
[    9.524081][  T190]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.524207][  T190]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.524331][  T190]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.524458][  T190]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.524606][  T190]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.524733][  T190]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.524876][  T190]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.525007][  T190]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.525135][  T190]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.525292][  T190]  ? move_addr_to_kernel (net/socket.c:258)
[    9.525421][  T190]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.525550][  T190]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.525675][  T190]  ___sys_sendmsg (net/socket.c:2752)
[    9.525816][  T190]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.525974][  T190]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.526112][  T190]  __sys_sendmsg (net/socket.c:2784)
[    9.526239][  T190]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.526365][  T190]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.526525][  T190]  ? 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)
[    9.526651][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.526787][  T190]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.526913][  T190]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.527039][  T190]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.527166][  T190]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.527322][  T190] RIP: 0033:0x7f1e994ae08e
[    9.527455][  T190] 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
[    9.527961][  T190] RSP: 002b:00007ffc9a3250b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.528149][  T190] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1e994ae08e
[    9.528334][  T190] RDX: 0000000000000000 RSI: 00007ffc9a325160 RDI: 0000000000000005
[    9.528525][  T190] RBP: 00007ffc9a3250c0 R08: 0000000000000000 R09: 0000000000000000
[    9.528715][  T190] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10da78
[    9.528921][  T190] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc9a325820
| [    9.531708][  T190] ------------[ cut here ]------------
| [    9.531856][  T190] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/190
| [    9.532081][  T190] Modules linked in: netdevsim
| [    9.532473][  T190] Tainted: [W]=WARN
[    9.532570][  T190] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.532732][  T190] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.532906][  T190] 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
[    9.533361][  T190] RSP: 0018:ffa00000006e6fc0 EFLAGS: 00010286
[    9.533523][  T190] RAX: 00000000ffffffa6 RBX: ff1100000d376640 RCX: 1ff40000000dcdbe
[    9.533716][  T190] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d3766f0
[    9.533917][  T190] RBP: ff1100000d0fa000 R08: 1fe2200001a6ecdf R09: ff1100000d0a0b58
[    9.534112][  T190] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.534304][  T190] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa7159ab0
[    9.534499][  T190] FS:  00007f1e99274840(0000) GS:ff11000089505000(0000) knlGS:0000000000000000
[    9.534724][  T190] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.534895][  T190] CR2: 00000000277ea988 CR3: 000000000ca41006 CR4: 0000000000771ef0
[    9.535087][  T190] PKRU: 55555554
[    9.535183][  T190] Call Trace:
[    9.535279][  T190]  <TASK>
[    9.535346][  T190]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.535477][  T190]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.535576][  T190]  __dev_change_net_namespace (net/core/dev.c:12695)
[    9.535748][  T190]  ? default_device_exit_batch (net/core/dev.c:13091)
[    9.535912][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.536040][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.536171][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.536302][  T190]  ? 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))
[    9.536432][  T190]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.536561][  T190]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.536694][  T190]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    9.536833][  T190]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.536963][  T190]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.537123][  T190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.537253][  T190]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.537383][  T190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.537511][  T190]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.537642][  T190]  ? __kernel_text_address (kernel/extable.c:79)
[    9.537781][  T190]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.537913][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.538042][  T190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.538172][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.538301][  T190]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.538431][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.538562][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.538691][  T190]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.538826][  T190]  ? __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)
[    9.538954][  T190]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.539083][  T190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.539213][  T190]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.539342][  T190]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.539474][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.539607][  T190]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.539737][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.539876][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.540006][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.540136][  T190]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.540264][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.540395][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.540525][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.540655][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.540804][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.540939][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.541068][  T190]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.541198][  T190]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.541328][  T190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.541456][  T190]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.541589][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.541718][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.541857][  T190]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.541986][  T190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.542116][  T190]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.542250][  T190]  ? 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))
[    9.542379][  T190]  ? 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))
[    9.542514][  T190]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.542645][  T190]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.542784][  T190]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.542914][  T190]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.543044][  T190]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.543174][  T190]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.543307][  T190]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.543436][  T190]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.543566][  T190]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.543727][  T190]  ? move_addr_to_kernel (net/socket.c:258)
[    9.543868][  T190]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.543998][  T190]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.544129][  T190]  ___sys_sendmsg (net/socket.c:2752)
[    9.544261][  T190]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.544428][  T190]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.544572][  T190]  __sys_sendmsg (net/socket.c:2784)
[    9.544702][  T190]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.544843][  T190]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.545007][  T190]  ? 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)
[    9.545136][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.545266][  T190]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.545394][  T190]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.545524][  T190]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.545655][  T190]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.545825][  T190] RIP: 0033:0x7f1e994ae08e
[    9.545960][  T190] 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
[    9.546417][  T190] RSP: 002b:00007ffc9a3250b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.546613][  T190] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1e994ae08e
[    9.546821][  T190] RDX: 0000000000000000 RSI: 00007ffc9a325160 RDI: 0000000000000005
[    9.547014][  T190] RBP: 00007ffc9a3250c0 R08: 0000000000000000 R09: 0000000000000000
[    9.547207][  T190] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10da78
[    9.547399][  T190] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc9a325820
| [    9.643314][  T192] ------------[ cut here ]------------
| [    9.643528][  T192] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/192
| [    9.643818][  T192] Modules linked in: netdevsim
| [    9.644324][  T192] Tainted: [W]=WARN
[    9.644431][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.644597][  T192] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.644781][  T192] 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
[    9.645272][  T192] RSP: 0018:ffa00000004b7020 EFLAGS: 00010286
[    9.645455][  T192] RAX: 00000000ffffffa6 RBX: ff1100000598eac0 RCX: 1ff4000000096dca
[    9.645653][  T192] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000598eb70
[    9.645861][  T192] RBP: ff1100000d0fa000 R08: 1fe2200000b31d6f R09: ff1100000c9cae80
[    9.646057][  T192] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.646270][  T192] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.646476][  T192] FS:  00007f3dc2e59840(0000) GS:ff11000089505000(0000) knlGS:0000000000000000
[    9.646714][  T192] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.646892][  T192] CR2: 000000000be28988 CR3: 000000000d2de004 CR4: 0000000000771ef0
[    9.647091][  T192] PKRU: 55555554
[    9.647191][  T192] Call Trace:
[    9.647292][  T192]  <TASK>
[    9.647363][  T192]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.647503][  T192]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.647605][  T192]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.647737][  T192]  __dev_notify_flags (net/core/dev.c:9787)
[    9.647905][  T192]  ? netif_change_name (net/core/dev.c:1495)
[    9.648040][  T192]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.648171][  T192]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.648302][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.648433][  T192]  ? 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))
[    9.648567][  T192]  netif_change_flags (net/core/dev.c:9820)
[    9.648699][  T192]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.648844][  T192]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.649000][  T192]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.649173][  T192]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.649305][  T192]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.649437][  T192]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.649569][  T192]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.649700][  T192]  ? __kernel_text_address (kernel/extable.c:79)
[    9.649849][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.650006][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.650138][  T192]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.650270][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.650402][  T192]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.650535][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.650664][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.650882][  T192]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.651074][  T192]  ? __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)
[    9.651208][  T192]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.651345][  T192]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.651482][  T192]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.651619][  T192]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.651809][  T192]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.651944][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.652074][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.652213][  T192]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.652348][  T192]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.652484][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.652630][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.652841][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.652985][  T192]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.653123][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.653262][  T192]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.653395][  T192]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.653528][  T192]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.653660][  T192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.653855][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.653989][  T192]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.654118][  T192]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.654253][  T192]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.654384][  T192]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.654519][  T192]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.654654][  T192]  ? 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))
[    9.654867][  T192]  ? 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))
[    9.655007][  T192]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.655140][  T192]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.655271][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.655404][  T192]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.655539][  T192]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.655675][  T192]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.655870][  T192]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.656001][  T192]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.656133][  T192]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.656295][  T192]  ? move_addr_to_kernel (net/socket.c:258)
[    9.656426][  T192]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.656559][  T192]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.656698][  T192]  ___sys_sendmsg (net/socket.c:2752)
[    9.656888][  T192]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.657052][  T192]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.657196][  T192]  __sys_sendmsg (net/socket.c:2784)
[    9.657347][  T192]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.657478][  T192]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.657645][  T192]  ? 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)
[    9.657846][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.657991][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.658126][  T192]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.658261][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.658398][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.658560][  T192] RIP: 0033:0x7f3dc309308e
[    9.658695][  T192] 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
[    9.659291][  T192] RSP: 002b:00007ffe5ebd72a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.659492][  T192] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f3dc309308e
[    9.659688][  T192] RDX: 0000000000000000 RSI: 00007ffe5ebd7350 RDI: 0000000000000005
[    9.659973][  T192] RBP: 00007ffe5ebd72b0 R08: 0000000000000000 R09: 0000000000000000
[    9.660174][  T192] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10da78
[    9.660377][  T192] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe5ebd7a10
| [    9.719151][  T195] ------------[ cut here ]------------
| [    9.719330][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/195
| [    9.719568][  T195] Modules linked in: netdevsim
| [    9.720182][  T195] Tainted: [W]=WARN
[    9.720292][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.720466][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.720645][  T195] 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
[    9.721246][  T195] RSP: 0018:ffa0000000717020 EFLAGS: 00010286
[    9.721422][  T195] RAX: 00000000ffffffa6 RBX: ff1100000af896c0 RCX: 1ff40000000e2dca
[    9.721623][  T195] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000af89770
[    9.721912][  T195] RBP: ff1100000d592000 R08: 1fe22000015f12ef R09: ff1100000c372e80
[    9.722127][  T195] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.722424][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.722625][  T195] FS:  00007fdfdb9fe840(0000) GS:ff11000089505000(0000) knlGS:0000000000000000
[    9.722930][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.723104][  T195] CR2: 000000003684c988 CR3: 000000000d2de001 CR4: 0000000000771ef0
[    9.723304][  T195] PKRU: 55555554
[    9.723403][  T195] Call Trace:
[    9.723504][  T195]  <TASK>
[    9.723573][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.723709][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.723900][  T195]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.724034][  T195]  __dev_notify_flags (net/core/dev.c:9787)
[    9.724169][  T195]  ? netif_change_name (net/core/dev.c:1495)
[    9.724301][  T195]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.724453][  T195]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.724585][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.724717][  T195]  ? 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))
[    9.724863][  T195]  netif_change_flags (net/core/dev.c:9820)
[    9.724997][  T195]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.725134][  T195]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.725267][  T195]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.725433][  T195]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.725588][  T195]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.725728][  T195]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.725870][  T195]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.726002][  T195]  ? __kernel_text_address (kernel/extable.c:79)
[    9.726137][  T195]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.726275][  T195]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.726407][  T195]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.726539][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.726671][  T195]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.726813][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.726945][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.727076][  T195]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.727208][  T195]  ? __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)
[    9.727339][  T195]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.727470][  T195]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.727626][  T195]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.727771][  T195]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.727906][  T195]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.728041][  T195]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.728173][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.728306][  T195]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.728436][  T195]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.728567][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.728703][  T195]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.728845][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.728978][  T195]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.729110][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.729244][  T195]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.729376][  T195]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.729511][  T195]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.729644][  T195]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.729792][  T195]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.729933][  T195]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.730073][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.730206][  T195]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.730344][  T195]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.730477][  T195]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.730616][  T195]  ? 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))
[    9.730764][  T195]  ? 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))
[    9.730905][  T195]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.731041][  T195]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.731175][  T195]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.731311][  T195]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.731446][  T195]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.731581][  T195]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.731716][  T195]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.731861][  T195]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.731993][  T195]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.732161][  T195]  ? move_addr_to_kernel (net/socket.c:258)
[    9.732300][  T195]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.732436][  T195]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.732576][  T195]  ___sys_sendmsg (net/socket.c:2752)
[    9.732711][  T195]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.732889][  T195]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.733037][  T195]  __sys_sendmsg (net/socket.c:2784)
[    9.733172][  T195]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.733303][  T195]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.733470][  T195]  ? 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)
[    9.733602][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.733734][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.733881][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.734012][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.734145][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.734309][  T195] RIP: 0033:0x7fdfdbc3808e
[    9.734449][  T195] 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
[    9.734938][  T195] RSP: 002b:00007ffdfbb347f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.735142][  T195] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fdfdbc3808e
[    9.735343][  T195] RDX: 0000000000000000 RSI: 00007ffdfbb348a0 RDI: 0000000000000005
[    9.735542][  T195] RBP: 00007ffdfbb34800 R08: 0000000000000000 R09: 0000000000000000
[    9.735739][  T195] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10da79
[    9.735964][  T195] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffdfbb34f60
| [   10.054075][  T156] ------------[ cut here ]------------
| [   10.054356][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/156
| [   10.054732][  T156] Modules linked in: netconsole netdevsim
| [   10.055491][  T156] Tainted: [W]=WARN
[   10.055658][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.055973][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.056234][  T156] 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
[   10.056872][  T156] RSP: 0018:ffa00000008375a8 EFLAGS: 00010286
[   10.057128][  T156] RAX: 00000000ffffffa6 RBX: ff1100000b3756c0 RCX: 1ff4000000106e7b
[   10.057416][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b375770
[   10.057706][  T156] RBP: ff1100000d0fa000 R08: 1fe220000166eaef R09: ff11000009b8af70
[   10.058016][  T156] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[   10.058301][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000837698
[   10.058618][  T156] FS:  00007f2b4c9f3b80(0000) GS:ff11000089485000(0000) knlGS:0000000000000000
[   10.058973][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.059247][  T156] CR2: 00005600a6c9567c CR3: 000000000c0d2005 CR4: 0000000000771ef0
[   10.059537][  T156] PKRU: 55555554
[   10.059707][  T156] Call Trace:
[   10.059895][  T156]  <TASK>
[   10.060030][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.060258][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.060428][  T156]  netif_close_many (net/core/dev.c:1804)
[   10.060637][  T156]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.060871][  T156]  ? __dev_close_many (net/core/dev.c:1781)
[   10.061081][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.061293][  T156]  netif_close_many_and_unlock (net/core/dev.c:12330)
[   10.061502][  T156]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[   10.061774][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[   10.062023][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.062234][  T156]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   10.062445][  T156]  ? __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)
[   10.062657][  T156]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   10.062887][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.063158][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   10.063384][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[   10.063592][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   10.063819][  T156]  ? 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)
[   10.064037][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   10.064244][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.064449][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   10.064660][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   10.064914][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.065126][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   10.065376][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   10.065630][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   10.065858][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   10.066109][  T156]  bus_remove_device (drivers/base/bus.c:657)
[   10.066318][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   10.066553][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[   10.066789][  T156]  device_del (drivers/base/core.c:3895)
[   10.066961][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[   10.067171][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   10.067381][  T156]  device_unregister (drivers/base/core.c:3936)
[   10.067589][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   10.067855][  T156]  ? 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))
[   10.068061][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   10.068309][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   10.068514][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   10.068721][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   10.069004][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[   10.069198][  T156]  new_sync_write (fs/read_write.c:595)
[   10.069432][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.069642][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[   10.069888][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.070098][  T156]  ? ksys_write (fs/read_write.c:740)
[   10.070308][  T156]  vfs_write (fs/read_write.c:688)
[   10.070482][  T156]  ksys_write (fs/read_write.c:740)
[   10.070654][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[   10.070904][  T156]  ? 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)
[   10.071112][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.071333][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.071545][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.071769][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.071993][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.072235][  T156] RIP: 0033:0x7f2b4ca6508e
[   10.072448][  T156] 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
[   10.073077][  T156] RSP: 002b:00007ffdfdd0d110 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   10.073392][  T156] RAX: ffffffffffffffda RBX: 00007f2b4cbe7580 RCX: 00007f2b4ca6508e
[   10.073680][  T156] RDX: 0000000000000004 RSI: 00005600a6ce84e0 RDI: 0000000000000001
[   10.073988][  T156] RBP: 00007ffdfdd0d120 R08: 0000000000000000 R09: 0000000000000000
[   10.074279][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   10.074570][  T156] R13: 0000000000000004 R14: 00005600a6ce84e0 R15: 0000000000000000
| [   10.080317][  T156] ------------[ cut here ]------------
| [   10.080609][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/156
| [   10.080979][  T156] Modules linked in: netconsole netdevsim
| [   10.081563][  T156] Tainted: [W]=WARN
[   10.081733][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.082041][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.082318][  T156] 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
[   10.083703][  T156] RSP: 0018:ffa0000000837728 EFLAGS: 00010286
[   10.084020][  T156] RAX: 00000000ffffffa6 RBX: ff1100000d128040 RCX: 1ff4000000106eab
[   10.084357][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d1280f0
[   10.084690][  T156] RBP: ff1100000d0fa000 R08: 1fe2200001a2501f R09: ff11000009b8af48
[   10.085047][  T156] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.085378][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.085740][  T156] FS:  00007f2b4c9f3b80(0000) GS:ff11000089485000(0000) knlGS:0000000000000000
[   10.086204][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.086500][  T156] CR2: 00005600a6c9567c CR3: 000000000c0d2005 CR4: 0000000000771ef0
[   10.086865][  T156] PKRU: 55555554
[   10.087087][  T156] Call Trace:
[   10.087324][  T156]  <TASK>
[   10.087510][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.087829][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.088136][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   10.088399][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[   10.088655][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   10.088932][  T156]  ? 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)
[   10.089193][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   10.089455][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.089710][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   10.089988][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   10.090249][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.090509][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   10.090852][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   10.091168][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   10.091450][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   10.091773][  T156]  bus_remove_device (drivers/base/bus.c:657)
[   10.092034][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   10.092300][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[   10.092560][  T156]  device_del (drivers/base/core.c:3895)
[   10.092803][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[   10.093077][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   10.093361][  T156]  device_unregister (drivers/base/core.c:3936)
[   10.093618][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   10.093969][  T156]  ? 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))
[   10.094381][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   10.094625][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   10.094844][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   10.095046][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   10.095253][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[   10.095414][  T156]  new_sync_write (fs/read_write.c:595)
[   10.095613][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.095831][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[   10.096029][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.096225][  T156]  ? ksys_write (fs/read_write.c:740)
[   10.096440][  T156]  vfs_write (fs/read_write.c:688)
[   10.096625][  T156]  ksys_write (fs/read_write.c:740)
[   10.096826][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[   10.097023][  T156]  ? 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)
[   10.097222][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.097422][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.097620][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.097835][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.098032][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.098267][  T156] RIP: 0033:0x7f2b4ca6508e
[   10.098472][  T156] 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
[   10.099063][  T156] RSP: 002b:00007ffdfdd0d110 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   10.099344][  T156] RAX: ffffffffffffffda RBX: 00007f2b4cbe7580 RCX: 00007f2b4ca6508e
[   10.099614][  T156] RDX: 0000000000000004 RSI: 00005600a6ce84e0 RDI: 0000000000000001
[   10.099902][  T156] RBP: 00007ffdfdd0d120 R08: 0000000000000000 R09: 0000000000000000
[   10.100174][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   10.100443][  T156] R13: 0000000000000004 R14: 00005600a6ce84e0 R15: 0000000000000000
| [   10.143136][  T156] ------------[ cut here ]------------
| [   10.143443][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/156
| [   10.143772][  T156] Modules linked in: netconsole netdevsim
| [   10.144324][  T156] Tainted: [W]=WARN
[   10.144464][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.144663][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.144952][  T156] 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
[   10.145600][  T156] RSP: 0018:ffa00000008375a8 EFLAGS: 00010286
[   10.145884][  T156] RAX: 00000000ffffffa6 RBX: ff1100000b2c79c0 RCX: 1ff4000000106e7b
[   10.146121][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b2c7a70
[   10.146354][  T156] RBP: ff1100000d592000 R08: 1fe2200001658f4f R09: ff11000009b8af70
[   10.146608][  T156] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   10.146918][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000837698
[   10.147164][  T156] FS:  00007f2b4c9f3b80(0000) GS:ff11000089505000(0000) knlGS:0000000000000000
[   10.147451][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.147676][  T156] CR2: 00007fb667c6b2a0 CR3: 000000000c0d2006 CR4: 0000000000771ef0
[   10.147985][  T156] PKRU: 55555554
[   10.148108][  T156] Call Trace:
[   10.148228][  T156]  <TASK>
[   10.148314][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.148480][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.148603][  T156]  netif_close_many (net/core/dev.c:1804)
[   10.148851][  T156]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   10.149020][  T156]  ? __dev_close_many (net/core/dev.c:1781)
[   10.149178][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.149336][  T156]  netif_close_many_and_unlock (net/core/dev.c:12330)
[   10.149494][  T156]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[   10.149690][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[   10.149956][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.150114][  T156]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   10.150272][  T156]  ? __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)
[   10.150427][  T156]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   10.150586][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.150851][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   10.151009][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[   10.151167][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   10.151323][  T156]  ? 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)
[   10.151481][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   10.151659][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.151881][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   10.152045][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   10.152207][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.152365][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   10.152563][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   10.152821][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   10.152983][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   10.153179][  T156]  bus_remove_device (drivers/base/bus.c:657)
[   10.153344][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   10.153504][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[   10.153665][  T156]  device_del (drivers/base/core.c:3895)
[   10.153797][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[   10.153955][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   10.154112][  T156]  device_unregister (drivers/base/core.c:3936)
[   10.154274][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   10.154475][  T156]  ? 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))
[   10.154634][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   10.154845][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   10.155023][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   10.155186][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   10.155343][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[   10.155463][  T156]  new_sync_write (fs/read_write.c:595)
[   10.155628][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.155801][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[   10.155960][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.156117][  T156]  ? ksys_write (fs/read_write.c:740)
[   10.156279][  T156]  vfs_write (fs/read_write.c:688)
[   10.156400][  T156]  ksys_write (fs/read_write.c:740)
[   10.156520][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[   10.156679][  T156]  ? 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)
[   10.156843][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.157002][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.157159][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.157315][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.157473][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.157687][  T156] RIP: 0033:0x7f2b4ca6508e
[   10.157868][  T156] 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
[   10.158465][  T156] RSP: 002b:00007ffdfdd0d210 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   10.158703][  T156] RAX: ffffffffffffffda RBX: 00007f2b4cbe7580 RCX: 00007f2b4ca6508e
[   10.158951][  T156] RDX: 0000000000000004 RSI: 00005600a6ce84e0 RDI: 0000000000000001
[   10.159186][  T156] RBP: 00007ffdfdd0d220 R08: 0000000000000000 R09: 0000000000000000
[   10.159429][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   10.159664][  T156] R13: 0000000000000004 R14: 00005600a6ce84e0 R15: 0000000000000000
| [   10.172890][  T156] ------------[ cut here ]------------
| [   10.173125][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: bash/156
| [   10.173468][  T156] Modules linked in: netconsole netdevsim
| [   10.174018][  T156] Tainted: [W]=WARN
[   10.174136][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.174337][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.174533][  T156] 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
[   10.175091][  T156] RSP: 0018:ffa0000000837728 EFLAGS: 00010286
[   10.175290][  T156] RAX: 00000000ffffffa6 RBX: ff1100000d1281c0 RCX: 1ff4000000106eab
[   10.175512][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d128270
[   10.175734][  T156] RBP: ff1100000d592000 R08: 1fe2200001a2504f R09: ff11000009b8af48
[   10.175969][  T156] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.176191][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.176419][  T156] FS:  00007f2b4c9f3b80(0000) GS:ff11000089385000(0000) knlGS:0000000000000000
[   10.176700][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.176928][  T156] CR2: 00007efd0cdf68f4 CR3: 000000000c0d2005 CR4: 0000000000771ef0
[   10.177153][  T156] PKRU: 55555554
[   10.177265][  T156] Call Trace:
[   10.177377][  T156]  <TASK>
[   10.177454][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.177644][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.177838][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   10.177987][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[   10.178137][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   10.178285][  T156]  ? 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)
[   10.178456][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   10.178605][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.178764][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   10.178915][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   10.179068][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.179222][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   10.179415][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   10.179604][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   10.179777][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   10.179964][  T156]  bus_remove_device (drivers/base/bus.c:657)
[   10.180113][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   10.180263][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[   10.180414][  T156]  device_del (drivers/base/core.c:3895)
[   10.180528][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[   10.180705][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   10.180871][  T156]  device_unregister (drivers/base/core.c:3936)
[   10.181019][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   10.181207][  T156]  ? 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))
[   10.181354][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   10.181539][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   10.181688][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   10.181855][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   10.182054][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[   10.182167][  T156]  new_sync_write (fs/read_write.c:595)
[   10.182317][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.182468][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[   10.182621][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.182788][  T156]  ? ksys_write (fs/read_write.c:740)
[   10.182947][  T156]  vfs_write (fs/read_write.c:688)
[   10.183069][  T156]  ksys_write (fs/read_write.c:740)
[   10.183206][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[   10.183355][  T156]  ? 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)
[   10.183503][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.183653][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.183816][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.183972][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.184122][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.184307][  T156] RIP: 0033:0x7f2b4ca6508e
[   10.184461][  T156] 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
[   10.185157][  T156] RSP: 002b:00007ffdfdd0d210 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   10.185381][  T156] RAX: ffffffffffffffda RBX: 00007f2b4cbe7580 RCX: 00007f2b4ca6508e
[   10.185602][  T156] RDX: 0000000000000004 RSI: 00005600a6ce84e0 RDI: 0000000000000001
[   10.185834][  T156] RBP: 00007ffdfdd0d220 R08: 0000000000000000 R09: 0000000000000000
[   10.186085][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   10.186310][  T156] R13: 0000000000000004 R14: 00005600a6ce84e0 R15: 0000000000000000
| [   10.426908][   T68] ------------[ cut here ]------------
| [   10.427126][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   10.427447][   T68] Modules linked in: netdevsim [last unloaded: netconsole]
| [   10.428023][   T68] Tainted: [W]=WARN
[   10.428122][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.428285][   T68] Workqueue: netns cleanup_net
[   10.428426][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.428596][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.429089][   T68] RSP: 0018:ffa0000000497748 EFLAGS: 00010286
[   10.429254][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c23cf40 RCX: 1ff4000000092eaf
[   10.429451][   T68] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c23cff0
[   10.429648][   T68] RBP: ff11000008544000 R08: 1fe22000018479ff R09: ff11000008c82ed0
[   10.429856][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   10.430048][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000004977e8
[   10.430243][   T68] FS:  0000000000000000(0000) GS:ff11000089385000(0000) knlGS:0000000000000000
[   10.430480][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.430646][   T68] CR2: 00007f2b4cc04f98 CR3: 0000000035939002 CR4: 0000000000771ef0
[   10.430854][   T68] PKRU: 55555554
[   10.430952][   T68] Call Trace:
[   10.431051][   T68]  <TASK>
[   10.431120][   T68]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.431255][   T68]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.431356][   T68]  netif_close_many (net/core/dev.c:1804)
[   10.431522][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.431653][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.431793][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.431920][   T68]  ? __dev_close_many (net/core/dev.c:1781)
[   10.432050][   T68]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   10.432210][   T68]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   10.432338][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   10.432493][   T68]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   10.432618][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   10.432750][   T68]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   10.432882][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.433044][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   10.433172][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   10.433320][   T68]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   10.433451][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   10.433581][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   10.433711][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   10.433850][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   10.433982][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   10.434117][   T68]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   10.434247][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.434383][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   10.434512][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   10.434640][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   10.434780][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.434909][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.435039][   T68]  process_one_work (kernel/workqueue.c:3314)
[   10.435171][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   10.435309][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.435442][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.435572][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.435698][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   10.435838][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.435964][   T68]  kthread (kernel/kthread.c:436)
[   10.436061][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.436221][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.436353][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.436483][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   10.436643][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   10.436781][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.436910][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   10.447078][   T68] ------------[ cut here ]------------
| [   10.447221][   T68] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 1/68
| [   10.447466][   T68] Modules linked in: netdevsim [last unloaded: netconsole]
| [   10.447947][   T68] Tainted: [W]=WARN
[   10.448040][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.448192][   T68] Workqueue: netns cleanup_net
[   10.448326][   T68] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.448485][   T68] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.448932][   T68] RSP: 0018:ffa0000000497878 EFLAGS: 00010286
[   10.449089][   T68] RAX: 00000000ffffffa6 RBX: ff1100000c23de40 RCX: 1ff4000000092ed5
[   10.449271][   T68] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c23def0
[   10.449456][   T68] RBP: ff11000008544000 R08: 1fe2200001847bdf R09: ff11000008c82ed0
[   10.449642][   T68] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.449834][   T68] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.450019][   T68] FS:  0000000000000000(0000) GS:ff11000089385000(0000) knlGS:0000000000000000
[   10.450231][   T68] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.450387][   T68] CR2: 00007f2b4cc04f98 CR3: 000000000cadb002 CR4: 0000000000771ef0
[   10.450571][   T68] PKRU: 55555554
[   10.450663][   T68] Call Trace:
[   10.450763][   T68]  <TASK>
[   10.450828][   T68]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.450988][   T68]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.451145][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   10.451271][   T68]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   10.451396][   T68]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   10.451519][   T68]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   10.451643][   T68]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   10.451776][   T68]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   10.451901][   T68]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   10.452025][   T68]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   10.452152][   T68]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   10.452274][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   10.452400][   T68]  cleanup_net (net/core/net_namespace.c:702)
[   10.452523][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   10.452645][   T68]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   10.452842][   T68]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   10.452964][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.453088][   T68]  process_one_work (kernel/workqueue.c:3314)
[   10.453241][   T68]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   10.453360][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   10.453482][   T68]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   10.453608][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.453727][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   10.453873][   T68]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   10.453993][   T68]  kthread (kernel/kthread.c:436)
[   10.454083][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.454232][   T68]  ? kthread_affine_node (kernel/kthread.c:378)
[   10.454352][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   10.454474][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   10.454626][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   10.454750][   T68]  ? kthread_affine_node (kernel/kthread.c:378)


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