======================================
| [    8.988104][  T182] ------------[ cut here ]------------
| [    8.988354][  T182] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/182
| [    8.988596][  T182] Modules linked in: netconsole netdevsim
| [    8.989077][  T182] Tainted: [W]=WARN
[    8.989179][  T182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.989345][  T182] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.989520][  T182] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.990026][  T182] RSP: 0018:ffa0000000697aa8 EFLAGS: 00010286
[    8.990196][  T182] RAX: 00000000ffffffa6 RBX: ff1100000580db40 RCX: 1ff40000000d2f1b
[    8.990394][  T182] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000580dbf0
[    8.990592][  T182] RBP: ff11000007a34000 R08: 1fe2200000b01b7f R09: ff1100000d14d180
[    8.990793][  T182] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.991034][  T182] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000007a34000
[    8.991233][  T182] FS:  00007f7b15017840(0000) GS:ff110000a4985000(0000) knlGS:0000000000000000
[    8.991464][  T182] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.991630][  T182] CR2: 0000000000479648 CR3: 000000000c26a004 CR4: 0000000000771ef0
[    8.991835][  T182] PKRU: 55555554
[    8.991934][  T182] Call Trace:
[    8.992033][  T182]  <TASK>
[    8.992102][  T182]  ? ip6_route_dev_notify (net/ipv6/route.c:6484)
[    8.992236][  T182]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.992368][  T182]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.992501][  T182]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.992601][  T182]  register_netdevice (net/core/dev.c:11488)
[    8.992740][  T182]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.992912][  T182]  register_netdev (net/core/dev.c:11552)
[    8.993041][  T182]  loopback_net_init (drivers/net/loopback.c:218)
[    8.993174][  T182]  ops_init (net/core/net_namespace.c:137)
[    8.993274][  T182]  setup_net (net/core/net_namespace.c:446)
[    8.993374][  T182]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.993506][  T182]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.993637][  T182]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.993776][  T182]  copy_net_ns (net/core/net_namespace.c:579)
[    8.993914][  T182]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.994048][  T182]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.994179][  T182]  ksys_unshare (kernel/fork.c:3243)
[    8.994311][  T182]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.994444][  T182]  ? __ia32_sys_open (fs/open.c:1374)
[    8.994579][  T182]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.994708][  T182]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.994880][  T182]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.995008][  T182]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.995140][  T182]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.995272][  T182]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.995434][  T182] RIP: 0033:0x7f7b152d9bcb
[    8.995571][  T182] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.996043][  T182] RSP: 002b:00007ffd2de67038 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.996242][  T182] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7b152d9bcb
[    8.996438][  T182] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.996636][  T182] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.996843][  T182] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd2de69260
[    8.997037][  T182] R13: 0000000000000001 R14: 00007f7b150176f8 R15: 00007ffd2de697fb
| [    9.027225][  T183] ------------[ cut here ]------------
| [    9.027413][  T183] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/183
| [    9.027687][  T183] Modules linked in: netconsole netdevsim
| [    9.028196][  T183] Tainted: [W]=WARN
[    9.028341][  T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.028551][  T183] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.028779][  T183] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.029292][  T183] RSP: 0018:ffa00000006a7020 EFLAGS: 00010286
[    9.029500][  T183] RAX: 00000000ffffffa6 RBX: ff1100000580d840 RCX: 1ff40000000d4dca
[    9.029750][  T183] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000580d8f0
[    9.029997][  T183] RBP: ff11000007a34000 R08: 1fe2200000b01b1f R09: ff1100000c6ad158
[    9.030233][  T183] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    9.030472][  T183] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.030710][  T183] FS:  00007feeef244840(0000) GS:ff110000a4a85000(0000) knlGS:0000000000000000
[    9.031002][  T183] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.031210][  T183] CR2: 0000000024e8f988 CR3: 000000000bc40002 CR4: 0000000000771ef0
[    9.031454][  T183] PKRU: 55555554
[    9.031596][  T183] Call Trace:
[    9.031751][  T183]  <TASK>
[    9.031872][  T183]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.032053][  T183]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.032201][  T183]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.032377][  T183]  __dev_notify_flags (net/core/dev.c:9787)
[    9.032556][  T183]  ? netif_change_name (net/core/dev.c:1495)
[    9.032744][  T183]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.032932][  T183]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.033108][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.033284][  T183]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.033462][  T183]  netif_change_flags (net/core/dev.c:9820)
[    9.033638][  T183]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.033826][  T183]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.034015][  T183]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.034191][  T183]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.034399][  T183]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.034576][  T183]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.034764][  T183]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.034945][  T183]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.035123][  T183]  ? __kernel_text_address (kernel/extable.c:79)
[    9.035303][  T183]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.035481][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.035656][  T183]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.035850][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.036026][  T183]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.036200][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.036374][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.036552][  T183]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.036741][  T183]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.036924][  T183]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.037100][  T183]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.037277][  T183]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.037455][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.037634][  T183]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.037824][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.038008][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.038185][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.038359][  T183]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.038533][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.038769][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.038954][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.039132][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.039307][  T183]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.039486][  T183]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.039661][  T183]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.039856][  T183]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.040033][  T183]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.040208][  T183]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.040385][  T183]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.040558][  T183]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.040750][  T183]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.040934][  T183]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.041111][  T183]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.041290][  T183]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.041464][  T183]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.041642][  T183]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.041829][  T183]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.042011][  T183]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.042190][  T183]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.042366][  T183]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.042542][  T183]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.042733][  T183]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.042912][  T183]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.043087][  T183]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.043292][  T183]  ? move_addr_to_kernel (net/socket.c:258)
[    9.043471][  T183]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.043647][  T183]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.043845][  T183]  ___sys_sendmsg (net/socket.c:2752)
[    9.044023][  T183]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.044231][  T183]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.044419][  T183]  __sys_sendmsg (net/socket.c:2784)
[    9.044595][  T183]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.044786][  T183]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.045004][  T183]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.045180][  T183]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.045356][  T183]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.045533][  T183]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.045724][  T183]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.045915][  T183]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.046121][  T183] RIP: 0033:0x7feeef47e08e
[    9.046306][  T183] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.046822][  T183] RSP: 002b:00007ffde9935140 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.047072][  T183] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007feeef47e08e
[    9.047313][  T183] RDX: 0000000000000000 RSI: 00007ffde99351f0 RDI: 0000000000000005
[    9.047553][  T183] RBP: 00007ffde9935150 R08: 0000000000000000 R09: 0000000000000000
[    9.047804][  T183] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10df18
[    9.048051][  T183] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffde99358c0
| [    9.138930][  T156] ------------[ cut here ]------------
| [    9.139189][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/156
| [    9.139519][  T156] Modules linked in: netconsole netdevsim
| [    9.140220][  T156] Tainted: [W]=WARN
[    9.140348][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.140670][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.140921][  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
[    9.141546][  T156] RSP: 0018:ffa00000007f74f8 EFLAGS: 00010286
[    9.141760][  T156] RAX: 00000000ffffffa6 RBX: ff11000005492940 RCX: 1ff40000000fee65
[    9.142009][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000054929f0
[    9.142283][  T156] RBP: ff1100000bca2000 R08: 1fe2200000a9253f R09: ff1100000d115248
[    9.142542][  T156] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.142821][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000bca2000
[    9.143075][  T156] FS:  00007f544bbd8b80(0000) GS:ff110000a4b05000(0000) knlGS:0000000000000000
[    9.143370][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.143577][  T156] CR2: 00007ff721be0af0 CR3: 000000000c346003 CR4: 0000000000771ef0
[    9.143827][  T156] PKRU: 55555554
[    9.143957][  T156] Call Trace:
[    9.144083][  T156]  <TASK>
[    9.144170][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.144338][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.144476][  T156]  register_netdevice (net/core/dev.c:11488)
[    9.144644][  T156]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.144863][  T156]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.145047][  T156] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.145259][  T156] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.145427][  T156] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.145643][  T156]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.145814][  T156]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.146023][  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))
[    9.146191][  T156]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.146319][  T156]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.146484][  T156]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.146690][  T156] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.146892][  T156]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    9.147057][  T156]  call_driver_probe (drivers/base/dd.c:629)
[    9.147220][  T156]  really_probe (drivers/base/dd.c:709)
[    9.147384][  T156]  ? driver_probe_device (drivers/base/dd.c:135)
[    9.147545][  T156]  __driver_probe_device (drivers/base/dd.c:871)
[    9.147709][  T156]  driver_probe_device (drivers/base/dd.c:901)
[    9.147882][  T156]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.148044][  T156]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.148210][  T156]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    9.148377][  T156]  __device_attach (drivers/base/dd.c:1101)
[    9.148538][  T156]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.148700][  T156]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    9.148914][  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)
[    9.149077][  T156]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    9.149240][  T156]  device_initial_probe (drivers/base/dd.c:1156)
[    9.149407][  T156]  bus_probe_device (drivers/base/bus.c:613)
[    9.149572][  T156]  device_add (drivers/base/core.c:3706)
[    9.149741][  T156]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    9.149954][  T156]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    9.150118][  T156]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    9.150282][  T156] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.150486][  T156]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.150653][  T156]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    9.150866][  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))
[    9.151031][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.151195][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.151357][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.151521][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.151643][  T156]  new_sync_write (fs/read_write.c:595)
[    9.151815][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.151981][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.152145][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.152307][  T156]  ? ksys_write (fs/read_write.c:740)
[    9.152473][  T156]  vfs_write (fs/read_write.c:688)
[    9.152599][  T156]  ksys_write (fs/read_write.c:740)
[    9.152727][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.152918][  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)
[    9.153085][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.153247][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.153408][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.153571][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.153741][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.153955][  T156] RIP: 0033:0x7f544bc4a08e
[    9.154128][  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
[    9.154706][  T156] RSP: 002b:00007ffd72ba8ab0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.154972][  T156] RAX: ffffffffffffffda RBX: 00007f544bdcc580 RCX: 00007f544bc4a08e
[    9.155225][  T156] RDX: 0000000000000004 RSI: 000055b2964ccf40 RDI: 0000000000000001
[    9.155475][  T156] RBP: 00007ffd72ba8ac0 R08: 0000000000000000 R09: 0000000000000000
[    9.155730][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.155981][  T156] R13: 0000000000000004 R14: 000055b2964ccf40 R15: 0000000000000000
| [    9.172956][  T156] ------------[ cut here ]------------
| [    9.173187][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/156
| [    9.173523][  T156] Modules linked in: netconsole netdevsim
| [    9.174258][  T156] Tainted: [W]=WARN
[    9.174444][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.174766][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.175087][  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
[    9.175684][  T156] RSP: 0018:ffa00000007f74f8 EFLAGS: 00010286
[    9.175904][  T156] RAX: 00000000ffffffa6 RBX: ff1100000275d9c0 RCX: 1ff40000000fee65
[    9.176151][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000275da70
[    9.176390][  T156] RBP: ff1100000c7fa000 R08: 1fe22000004ebb4f R09: ff1100000d115248
[    9.176635][  T156] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.176893][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c7fa000
[    9.177137][  T156] FS:  00007f544bbd8b80(0000) GS:ff110000a4b05000(0000) knlGS:0000000000000000
[    9.177420][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.177632][  T156] CR2: 00007ff721be0af0 CR3: 000000000c346003 CR4: 0000000000771ef0
[    9.177887][  T156] PKRU: 55555554
[    9.178010][  T156] Call Trace:
[    9.178132][  T156]  <TASK>
[    9.178215][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.178436][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.178560][  T156]  register_netdevice (net/core/dev.c:11488)
[    9.178730][  T156]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.178943][  T156]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.179237][  T156] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.179446][  T156] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.179609][  T156] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.179823][  T156]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.179993][  T156]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.180206][  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))
[    9.180373][  T156]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.180495][  T156]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.180664][  T156]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.180879][  T156] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.181044][  T156]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    9.181205][  T156]  call_driver_probe (drivers/base/dd.c:629)
[    9.181373][  T156]  really_probe (drivers/base/dd.c:709)
[    9.181538][  T156]  ? driver_probe_device (drivers/base/dd.c:135)
[    9.181700][  T156]  __driver_probe_device (drivers/base/dd.c:871)
[    9.182020][  T156]  driver_probe_device (drivers/base/dd.c:901)
[    9.182303][  T156]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.182466][  T156]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.182628][  T156]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    9.182802][  T156]  __device_attach (drivers/base/dd.c:1101)
[    9.183003][  T156]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.183164][  T156]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    9.183481][  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)
[    9.183645][  T156]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    9.183820][  T156]  device_initial_probe (drivers/base/dd.c:1156)
[    9.183988][  T156]  bus_probe_device (drivers/base/bus.c:613)
[    9.184272][  T156]  device_add (drivers/base/core.c:3706)
[    9.184435][  T156]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    9.184641][  T156]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    9.184808][  T156]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    9.184978][  T156] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.185297][  T156]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.185585][  T156]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    9.185791][  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))
[    9.185960][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.186124][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.186284][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.186445][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.186567][  T156]  new_sync_write (fs/read_write.c:595)
[    9.186742][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.186911][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.187072][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.187232][  T156]  ? ksys_write (fs/read_write.c:740)
[    9.187399][  T156]  vfs_write (fs/read_write.c:688)
[    9.187522][  T156]  ksys_write (fs/read_write.c:740)
[    9.187645][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.187810][  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)
[    9.188013][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.188179][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.188455][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.188624][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.188912][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.189112][  T156] RIP: 0033:0x7f544bc4a08e
[    9.189282][  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
[    9.189980][  T156] RSP: 002b:00007ffd72ba8ae0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.190223][  T156] RAX: ffffffffffffffda RBX: 00007f544bdcc580 RCX: 00007f544bc4a08e
[    9.190586][  T156] RDX: 0000000000000004 RSI: 000055b2964ccf40 RDI: 0000000000000001
[    9.190910][  T156] RBP: 00007ffd72ba8af0 R08: 0000000000000000 R09: 0000000000000000
[    9.191152][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.191511][  T156] R13: 0000000000000004 R14: 000055b2964ccf40 R15: 0000000000000000
| [    9.392908][  T199] ------------[ cut here ]------------
| [    9.393084][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/199
| [    9.393323][  T199] Modules linked in: netconsole netdevsim
| [    9.393748][  T199] Tainted: [W]=WARN
[    9.393856][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.394021][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.394198][  T199] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.394660][  T199] RSP: 0018:ffa0000000806ff8 EFLAGS: 00010286
[    9.394839][  T199] RAX: 00000000ffffffa6 RBX: ff1100000bc3f3c0 RCX: 1ff4000000100dc5
[    9.395037][  T199] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000bc3f470
[    9.395233][  T199] RBP: ff1100000bca2000 R08: 1fe2200001787e8f R09: ff1100000c2dd158
[    9.395428][  T199] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.395621][  T199] R13: 0000000000000000 R14: ffa0000000807140 R15: ff110000090fbbd0
[    9.395824][  T199] FS:  00007f26f2586840(0000) GS:ff110000a4985000(0000) knlGS:0000000000000000
[    9.396061][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.396225][  T199] CR2: 0000000034e39988 CR3: 000000000c3ef005 CR4: 0000000000771ef0
[    9.396420][  T199] PKRU: 55555554
[    9.396518][  T199] Call Trace:
[    9.396616][  T199]  <TASK>
[    9.396685][  T199]  rtmsg_ifinfo_newnet (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4567)
[    9.396824][  T199]  __dev_change_net_namespace (net/core/dev.c:12635)
[    9.396992][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.397124][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.397256][  T199]  ? default_device_exit_batch (net/core/dev.c:13091)
[    9.397416][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.397546][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.397677][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.397816][  T199]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.397955][  T199]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.398086][  T199]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.398217][  T199]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    9.398349][  T199]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.398482][  T199]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.398643][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.398782][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.398916][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.399046][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.399176][  T199]  ? __kernel_text_address (kernel/extable.c:79)
[    9.399306][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.399437][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.399566][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.399698][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.399864][  T199]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.399993][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.400122][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.400252][  T199]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.400382][  T199]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.400511][  T199]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.400641][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.400779][  T199]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.400912][  T199]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.401045][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.401179][  T199]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.401310][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.401438][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.401566][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.401695][  T199]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.401832][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.401968][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.402097][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.402226][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.402356][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.402486][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.402615][  T199]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.402752][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.402886][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.403016][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.403148][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.403277][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.403406][  T199]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.403535][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.403666][  T199]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.403805][  T199]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.403941][  T199]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.404074][  T199]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.404204][  T199]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.404333][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.404464][  T199]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.404595][  T199]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.404730][  T199]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.404867][  T199]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.404997][  T199]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.405126][  T199]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.405287][  T199]  ? move_addr_to_kernel (net/socket.c:258)
[    9.405416][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.405545][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.405678][  T199]  ___sys_sendmsg (net/socket.c:2752)
[    9.405813][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.405976][  T199]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.406118][  T199]  __sys_sendmsg (net/socket.c:2784)
[    9.406247][  T199]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.406375][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.406539][  T199]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.406671][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.406818][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.406958][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.407088][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.407218][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.407378][  T199] RIP: 0033:0x7f26f27c008e
[    9.407514][  T199] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.407985][  T199] RSP: 002b:00007fff39dd4640 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.408181][  T199] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f26f27c008e
[    9.408375][  T199] RDX: 0000000000000000 RSI: 00007fff39dd46f0 RDI: 0000000000000005
[    9.408571][  T199] RBP: 00007fff39dd4650 R08: 0000000000000000 R09: 0000000000000000
[    9.408770][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10df18
[    9.408967][  T199] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff39dd4db0
| [    9.412203][  T199] ------------[ cut here ]------------
| [    9.412343][  T199] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/199
| [    9.412581][  T199] Modules linked in: netconsole netdevsim
| [    9.412998][  T199] Tainted: [W]=WARN
[    9.413100][  T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.413266][  T199] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.413437][  T199] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.413915][  T199] RSP: 0018:ffa0000000806fc0 EFLAGS: 00010286
[    9.414081][  T199] RAX: 00000000ffffffa6 RBX: ff110000096599c0 RCX: 1ff4000000100dbe
[    9.414277][  T199] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009659a70
[    9.414472][  T199] RBP: ff1100000bca2000 R08: 1fe22000012cb34f R09: ff1100000c2dd158
[    9.414668][  T199] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.414888][  T199] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff92559ab0
[    9.415086][  T199] FS:  00007f26f2586840(0000) GS:ff110000a4985000(0000) knlGS:0000000000000000
[    9.415317][  T199] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.415484][  T199] CR2: 0000000034e39988 CR3: 000000000c3ef005 CR4: 0000000000771ef0
[    9.415683][  T199] PKRU: 55555554
[    9.415788][  T199] Call Trace:
[    9.415892][  T199]  <TASK>
[    9.415961][  T199]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.416095][  T199]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.416196][  T199]  __dev_change_net_namespace (net/core/dev.c:12695)
[    9.416366][  T199]  ? default_device_exit_batch (net/core/dev.c:13091)
[    9.416529][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.416661][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.416798][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.416936][  T199]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.417070][  T199]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.417201][  T199]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.417337][  T199]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    9.417471][  T199]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.417603][  T199]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.417772][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.417908][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.418040][  T199]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.418172][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.418305][  T199]  ? __kernel_text_address (kernel/extable.c:79)
[    9.418437][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.418570][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.418701][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.418841][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.418974][  T199]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.419106][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.419237][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.419369][  T199]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.419500][  T199]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.419630][  T199]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.419767][  T199]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.419904][  T199]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.420035][  T199]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.420170][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.420306][  T199]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.420438][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.420568][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.420699][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.420839][  T199]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.420970][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.421104][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.421236][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.421366][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.421498][  T199]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.421629][  T199]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.421764][  T199]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.421901][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.422032][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.422165][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.422300][  T199]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.422431][  T199]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.422564][  T199]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.422694][  T199]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.422831][  T199]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.422972][  T199]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.423103][  T199]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.423238][  T199]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.423374][  T199]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.423505][  T199]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.423640][  T199]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.423778][  T199]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.423915][  T199]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.424049][  T199]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.424181][  T199]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.424314][  T199]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.424478][  T199]  ? move_addr_to_kernel (net/socket.c:258)
[    9.424611][  T199]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.424749][  T199]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.424888][  T199]  ___sys_sendmsg (net/socket.c:2752)
[    9.425018][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.425184][  T199]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.425328][  T199]  __sys_sendmsg (net/socket.c:2784)
[    9.425461][  T199]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.425593][  T199]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.425765][  T199]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.425905][  T199]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.426039][  T199]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.426170][  T199]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.426302][  T199]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.426436][  T199]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.426599][  T199] RIP: 0033:0x7f26f27c008e
[    9.426744][  T199] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.427219][  T199] RSP: 002b:00007fff39dd4640 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.427420][  T199] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f26f27c008e
[    9.427617][  T199] RDX: 0000000000000000 RSI: 00007fff39dd46f0 RDI: 0000000000000005
[    9.427822][  T199] RBP: 00007fff39dd4650 R08: 0000000000000000 R09: 0000000000000000
[    9.428021][  T199] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10df18
[    9.428219][  T199] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff39dd4db0
| [    9.522989][  T201] ------------[ cut here ]------------
| [    9.523192][  T201] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/201
| [    9.523432][  T201] Modules linked in: netconsole netdevsim
| [    9.523939][  T201] Tainted: [W]=WARN
[    9.524044][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.524251][  T201] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.524428][  T201] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.524916][  T201] RSP: 0018:ffa0000000837020 EFLAGS: 00010286
[    9.525087][  T201] RAX: 00000000ffffffa6 RBX: ff11000004cefcc0 RCX: 1ff4000000106dca
[    9.525287][  T201] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004cefd70
[    9.525486][  T201] RBP: ff1100000bca2000 R08: 1fe220000099dfaf R09: ff1100000c3c5180
[    9.525688][  T201] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[    9.525896][  T201] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.526101][  T201] FS:  00007f779cd9b840(0000) GS:ff110000a4985000(0000) knlGS:0000000000000000
[    9.526338][  T201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.526510][  T201] CR2: 000000000f81b988 CR3: 000000000c795002 CR4: 0000000000771ef0
[    9.526722][  T201] PKRU: 55555554
[    9.526824][  T201] Call Trace:
[    9.526928][  T201]  <TASK>
[    9.526999][  T201]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[    9.527134][  T201]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.527270][  T201]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.527390][  T201]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.527524][  T201]  __dev_notify_flags (net/core/dev.c:9787)
[    9.527660][  T201]  ? netif_change_name (net/core/dev.c:1495)
[    9.527802][  T201]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.527939][  T201]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.528073][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.528216][  T201]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.528352][  T201]  netif_change_flags (net/core/dev.c:9820)
[    9.528487][  T201]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.528625][  T201]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.528763][  T201]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.528934][  T201]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.529069][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.529209][  T201]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.529342][  T201]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.529476][  T201]  ? __kernel_text_address (kernel/extable.c:79)
[    9.529611][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.529810][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.529949][  T201]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.530089][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.530222][  T201]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.530355][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.530488][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.530621][  T201]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.530810][  T201]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.530946][  T201]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.531085][  T201]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.531220][  T201]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.531356][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.531493][  T201]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.531628][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.531818][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.532015][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.532148][  T201]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.532281][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.532418][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.532551][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.532683][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.532907][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.533051][  T201]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.533184][  T201]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.533318][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.533453][  T201]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.533587][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.533809][  T201]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.533954][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.534091][  T201]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.534226][  T201]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.534361][  T201]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.534498][  T201]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.534633][  T201]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.534851][  T201]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.534992][  T201]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.535126][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.535264][  T201]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.535398][  T201]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.535533][  T201]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.535670][  T201]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.535889][  T201]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.536023][  T201]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.536188][  T201]  ? move_addr_to_kernel (net/socket.c:258)
[    9.536324][  T201]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.536458][  T201]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.536594][  T201]  ___sys_sendmsg (net/socket.c:2752)
[    9.536798][  T201]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.536971][  T201]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.537120][  T201]  __sys_sendmsg (net/socket.c:2784)
[    9.537255][  T201]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.537392][  T201]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.537563][  T201]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.537705][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.537899][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.538033][  T201]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.538168][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.538303][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.538469][  T201] RIP: 0033:0x7f779cfd508e
[    9.538612][  T201] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.539155][  T201] RSP: 002b:00007ffd99a2fc90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.539359][  T201] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f779cfd508e
[    9.539562][  T201] RDX: 0000000000000000 RSI: 00007ffd99a2fd40 RDI: 0000000000000005
[    9.539823][  T201] RBP: 00007ffd99a2fca0 R08: 0000000000000000 R09: 0000000000000000
[    9.540028][  T201] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10df18
[    9.540229][  T201] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd99a30400
| [    9.608585][  T204] ------------[ cut here ]------------
| [    9.608772][  T204] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/204
| [    9.609021][  T204] Modules linked in: netconsole netdevsim
| [    9.609425][  T204] Tainted: [W]=WARN
[    9.609525][  T204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.609693][  T204] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.609875][  T204] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.610350][  T204] RSP: 0018:ffa000000099f020 EFLAGS: 00010286
[    9.610556][  T204] RAX: 00000000ffffffa6 RBX: ff11000008b56f40 RCX: 1ff4000000133dca
[    9.610758][  T204] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008b56ff0
[    9.610962][  T204] RBP: ff1100000c7fa000 R08: 1fe220000116adff R09: ff1100000c73d180
[    9.611183][  T204] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.611381][  T204] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.611592][  T204] FS:  00007fa6667ed840(0000) GS:ff110000a4b05000(0000) knlGS:0000000000000000
[    9.611828][  T204] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.612002][  T204] CR2: 000000002cd1d988 CR3: 000000000c757006 CR4: 0000000000771ef0
[    9.612198][  T204] PKRU: 55555554
[    9.612314][  T204] Call Trace:
[    9.612420][  T204]  <TASK>
[    9.612515][  T204]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[    9.612656][  T204]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.612792][  T204]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.612896][  T204]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.613027][  T204]  __dev_notify_flags (net/core/dev.c:9787)
[    9.613159][  T204]  ? netif_change_name (net/core/dev.c:1495)
[    9.613288][  T204]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.613419][  T204]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.613548][  T204]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.613679][  T204]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.613820][  T204]  netif_change_flags (net/core/dev.c:9820)
[    9.613957][  T204]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.614089][  T204]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.614220][  T204]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.614381][  T204]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.614513][  T204]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.614644][  T204]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.614779][  T204]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.614913][  T204]  ? __kernel_text_address (kernel/extable.c:79)
[    9.615044][  T204]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.615177][  T204]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.615307][  T204]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.615442][  T204]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.615572][  T204]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.615702][  T204]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.615927][  T204]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.616057][  T204]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.616189][  T204]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.616318][  T204]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.616450][  T204]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.616581][  T204]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.616792][  T204]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.617003][  T204]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.617139][  T204]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.617269][  T204]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.617400][  T204]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.617529][  T204]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.617658][  T204]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.617888][  T204]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.618021][  T204]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.618151][  T204]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.618282][  T204]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.618413][  T204]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.618544][  T204]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.618675][  T204]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.618884][  T204]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.619015][  T204]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.619150][  T204]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.619279][  T204]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.619411][  T204]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.619541][  T204]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.619671][  T204]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.619871][  T204]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.620009][  T204]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.620142][  T204]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.620275][  T204]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.620405][  T204]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.620542][  T204]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.620673][  T204]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.620885][  T204]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.621019][  T204]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.621152][  T204]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.621287][  T204]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.621452][  T204]  ? move_addr_to_kernel (net/socket.c:258)
[    9.621583][  T204]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.621732][  T204]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.621871][  T204]  ___sys_sendmsg (net/socket.c:2752)
[    9.622006][  T204]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.622169][  T204]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.622312][  T204]  __sys_sendmsg (net/socket.c:2784)
[    9.622442][  T204]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.622575][  T204]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.622752][  T204]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.622889][  T204]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.623021][  T204]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.623151][  T204]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.623286][  T204]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.623419][  T204]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.623582][  T204] RIP: 0033:0x7fa666a2708e
[    9.623724][  T204] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.624192][  T204] RSP: 002b:00007ffc80a88920 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.624391][  T204] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa666a2708e
[    9.624588][  T204] RDX: 0000000000000000 RSI: 00007ffc80a889d0 RDI: 0000000000000005
[    9.624788][  T204] RBP: 00007ffc80a88930 R08: 0000000000000000 R09: 0000000000000000
[    9.624988][  T204] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10df18
[    9.625185][  T204] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc80a89090
| [    9.694543][  T156] ------------[ cut here ]------------
| [    9.695283][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/156
| [    9.695611][  T156] Modules linked in: netconsole netdevsim
| [    9.696201][  T156] Tainted: [W]=WARN
[    9.696321][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.696523][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.696763][  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
[    9.697331][  T156] RSP: 0018:ffa00000007f75a8 EFLAGS: 00010286
[    9.697530][  T156] RAX: 00000000ffffffa6 RBX: ff1100000ae5b3c0 RCX: 1ff40000000fee7b
[    9.697771][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000ae5b470
[    9.698011][  T156] RBP: ff1100000bca2000 R08: 1fe22000015cb68f R09: ff1100000d115270
[    9.698246][  T156] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[    9.698479][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000007f7698
[    9.698720][  T156] FS:  00007f544bbd8b80(0000) GS:ff110000a4b05000(0000) knlGS:0000000000000000
[    9.699004][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.699205][  T156] CR2: 000055b2964b9bfc CR3: 000000000c346004 CR4: 0000000000771ef0
[    9.699469][  T156] PKRU: 55555554
[    9.699608][  T156] Call Trace:
[    9.699746][  T156]  <TASK>
[    9.699829][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.700017][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.700139][  T156]  netif_close_many (net/core/dev.c:1804)
[    9.700296][  T156]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.700454][  T156]  ? __dev_close_many (net/core/dev.c:1781)
[    9.700612][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.700776][  T156]  netif_close_many_and_unlock (net/core/dev.c:12330)
[    9.700938][  T156]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[    9.701145][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[    9.701340][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.701501][  T156]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.701658][  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)
[    9.701820][  T156]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.701984][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.702179][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.702337][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.702494][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.702650][  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)
[    9.702813][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.702976][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.703165][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.703332][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.703493][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.703661][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.703870][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.704081][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.704241][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.704440][  T156]  bus_remove_device (drivers/base/bus.c:657)
[    9.704599][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.704765][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[    9.704931][  T156]  device_del (drivers/base/core.c:3895)
[    9.705051][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.705212][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.705370][  T156]  device_unregister (drivers/base/core.c:3936)
[    9.705526][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.705731][  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))
[    9.705921][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.706119][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.706275][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.706433][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.706594][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.706720][  T156]  new_sync_write (fs/read_write.c:595)
[    9.706884][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.707040][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.707199][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.707358][  T156]  ? ksys_write (fs/read_write.c:740)
[    9.707520][  T156]  vfs_write (fs/read_write.c:688)
[    9.707640][  T156]  ksys_write (fs/read_write.c:740)
[    9.707764][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.707928][  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)
[    9.708088][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.708246][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.708416][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.708572][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.708733][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.708972][  T156] RIP: 0033:0x7f544bc4a08e
[    9.709142][  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
[    9.709693][  T156] RSP: 002b:00007ffd72ba8e70 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.709968][  T156] RAX: ffffffffffffffda RBX: 00007f544bdcc580 RCX: 00007f544bc4a08e
[    9.710201][  T156] RDX: 0000000000000004 RSI: 000055b2964ccf40 RDI: 0000000000000001
[    9.710433][  T156] RBP: 00007ffd72ba8e80 R08: 0000000000000000 R09: 0000000000000000
[    9.710665][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.710936][  T156] R13: 0000000000000004 R14: 000055b2964ccf40 R15: 0000000000000000
| [    9.716113][  T156] ------------[ cut here ]------------
| [    9.716382][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/156
| [    9.716697][  T156] Modules linked in: netconsole netdevsim
| [    9.717318][  T156] Tainted: [W]=WARN
[    9.717441][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.717643][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.717850][  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
[    9.718398][  T156] RSP: 0018:ffa00000007f7728 EFLAGS: 00010286
[    9.718606][  T156] RAX: 00000000ffffffa6 RBX: ff110000096596c0 RCX: 1ff40000000feeab
[    9.718845][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009659770
[    9.719094][  T156] RBP: ff1100000bca2000 R08: 1fe22000012cb2ef R09: ff1100000d115248
[    9.719327][  T156] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.719557][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.719827][  T156] FS:  00007f544bbd8b80(0000) GS:ff110000a4b05000(0000) knlGS:0000000000000000
[    9.720103][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.720292][  T156] CR2: 000055b2964b9bfc CR3: 000000000c346004 CR4: 0000000000771ef0
[    9.720513][  T156] PKRU: 55555554
[    9.720625][  T156] Call Trace:
[    9.720743][  T156]  <TASK>
[    9.720822][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.721024][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.721212][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.721363][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.721515][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.721674][  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)
[    9.721837][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.721988][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.722136][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.722287][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.722440][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.722591][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.722784][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.722977][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.723130][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.723318][  T156]  bus_remove_device (drivers/base/bus.c:657)
[    9.723468][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.723617][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[    9.723776][  T156]  device_del (drivers/base/core.c:3895)
[    9.723899][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.724055][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.724208][  T156]  device_unregister (drivers/base/core.c:3936)
[    9.724361][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.724554][  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))
[    9.724709][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.724949][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.725100][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.725250][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.725401][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.725514][  T156]  new_sync_write (fs/read_write.c:595)
[    9.725669][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.725830][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.725988][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.726141][  T156]  ? ksys_write (fs/read_write.c:740)
[    9.726295][  T156]  vfs_write (fs/read_write.c:688)
[    9.726414][  T156]  ksys_write (fs/read_write.c:740)
[    9.726533][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.726684][  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)
[    9.726847][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.726998][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.727147][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.727294][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.727443][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.727629][  T156] RIP: 0033:0x7f544bc4a08e
[    9.727796][  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
[    9.728336][  T156] RSP: 002b:00007ffd72ba8e70 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.728563][  T156] RAX: ffffffffffffffda RBX: 00007f544bdcc580 RCX: 00007f544bc4a08e
[    9.728798][  T156] RDX: 0000000000000004 RSI: 000055b2964ccf40 RDI: 0000000000000001
[    9.729026][  T156] RBP: 00007ffd72ba8e80 R08: 0000000000000000 R09: 0000000000000000
[    9.729249][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.729472][  T156] R13: 0000000000000004 R14: 000055b2964ccf40 R15: 0000000000000000
| [    9.765473][  T156] ------------[ cut here ]------------
| [    9.765832][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/156
| [    9.766240][  T156] Modules linked in: netconsole netdevsim
| [    9.766891][  T156] Tainted: [W]=WARN
[    9.767059][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.767311][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.767625][  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
[    9.768247][  T156] RSP: 0018:ffa00000007f75a8 EFLAGS: 00010286
[    9.768495][  T156] RAX: 00000000ffffffa6 RBX: ff1100000ae5a940 RCX: 1ff40000000fee7b
[    9.768788][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000ae5a9f0
[    9.769076][  T156] RBP: ff1100000c7fa000 R08: 1fe22000015cb53f R09: ff1100000d115270
[    9.769356][  T156] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041
[    9.769650][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000007f7698
[    9.769962][  T156] FS:  00007f544bbd8b80(0000) GS:ff110000a4a85000(0000) knlGS:0000000000000000
[    9.770287][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.770531][  T156] CR2: 00007f544bde9f98 CR3: 000000000c346004 CR4: 0000000000771ef0
[    9.770826][  T156] PKRU: 55555554
[    9.771001][  T156] Call Trace:
[    9.771167][  T156]  <TASK>
[    9.771296][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.771504][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.771671][  T156]  netif_close_many (net/core/dev.c:1804)
[    9.771895][  T156]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.772101][  T156]  ? __dev_close_many (net/core/dev.c:1781)
[    9.772306][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.772513][  T156]  netif_close_many_and_unlock (net/core/dev.c:12330)
[    9.772735][  T156]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[    9.772986][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[    9.773233][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.773437][  T156]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.773644][  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)
[    9.773867][  T156]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.774075][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.774318][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.774524][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.774741][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.774953][  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)
[    9.775162][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.775367][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.775573][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.775797][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.776013][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.776219][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.776466][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.776774][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.776992][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.777238][  T156]  bus_remove_device (drivers/base/bus.c:657)
[    9.777447][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.777651][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[    9.777878][  T156]  device_del (drivers/base/core.c:3895)
[    9.778063][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.778279][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.778486][  T156]  device_unregister (drivers/base/core.c:3936)
[    9.778690][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.778960][  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))
[    9.779166][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.779412][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.779617][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.779844][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.780094][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.780264][  T156]  new_sync_write (fs/read_write.c:595)
[    9.780473][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.780685][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.780911][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.781117][  T156]  ? ksys_write (fs/read_write.c:740)
[    9.781327][  T156]  vfs_write (fs/read_write.c:688)
[    9.781496][  T156]  ksys_write (fs/read_write.c:740)
[    9.781664][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.781888][  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)
[    9.782098][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.782304][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.782508][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.782762][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.782987][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.783231][  T156] RIP: 0033:0x7f544bc4a08e
[    9.783443][  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
[    9.784079][  T156] RSP: 002b:00007ffd72ba8f70 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.784365][  T156] RAX: ffffffffffffffda RBX: 00007f544bdcc580 RCX: 00007f544bc4a08e
[    9.784649][  T156] RDX: 0000000000000004 RSI: 000055b2964ccf40 RDI: 0000000000000001
[    9.784957][  T156] RBP: 00007ffd72ba8f80 R08: 0000000000000000 R09: 0000000000000000
[    9.785240][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.785524][  T156] R13: 0000000000000004 R14: 000055b2964ccf40 R15: 0000000000000000
| [    9.801411][  T156] ------------[ cut here ]------------
| [    9.801632][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: bash/156
| [    9.801995][  T156] Modules linked in: netconsole netdevsim
| [    9.802520][  T156] Tainted: [W]=WARN
[    9.802642][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.802873][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.803072][  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
[    9.803616][  T156] RSP: 0018:ffa00000007f7728 EFLAGS: 00010286
[    9.803822][  T156] RAX: 00000000ffffffa6 RBX: ff11000004cee640 RCX: 1ff40000000feeab
[    9.804061][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004cee6f0
[    9.804289][  T156] RBP: ff1100000c7fa000 R08: 1fe220000099dcdf R09: ff1100000d115248
[    9.804514][  T156] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.804747][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.804981][  T156] FS:  00007f544bbd8b80(0000) GS:ff110000a4985000(0000) knlGS:0000000000000000
[    9.805247][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.805439][  T156] CR2: 000055d656860bc8 CR3: 000000000c346003 CR4: 0000000000771ef0
[    9.805676][  T156] PKRU: 55555554
[    9.805795][  T156] Call Trace:
[    9.805913][  T156]  <TASK>
[    9.805992][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.806185][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.806370][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.806522][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.806673][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.806832][  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)
[    9.806992][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.807145][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.807298][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.807453][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.807607][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.807767][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.807960][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.808151][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[    9.808304][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[    9.808495][  T156]  bus_remove_device (drivers/base/bus.c:657)
[    9.808646][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[    9.808822][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[    9.808983][  T156]  device_del (drivers/base/core.c:3895)
[    9.809099][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[    9.809256][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.809409][  T156]  device_unregister (drivers/base/core.c:3936)
[    9.809559][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[    9.809756][  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))
[    9.809913][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[    9.810102][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.810252][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[    9.810405][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.810555][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.810670][  T156]  new_sync_write (fs/read_write.c:595)
[    9.810829][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.810984][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.811135][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.811285][  T156]  ? ksys_write (fs/read_write.c:740)
[    9.811440][  T156]  vfs_write (fs/read_write.c:688)
[    9.811558][  T156]  ksys_write (fs/read_write.c:740)
[    9.811672][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.811828][  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)
[    9.811983][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.812136][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.812285][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.812435][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.812584][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.812777][  T156] RIP: 0033:0x7f544bc4a08e
[    9.812938][  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
[    9.813470][  T156] RSP: 002b:00007ffd72ba8f70 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.813696][  T156] RAX: ffffffffffffffda RBX: 00007f544bdcc580 RCX: 00007f544bc4a08e
[    9.813929][  T156] RDX: 0000000000000004 RSI: 000055b2964ccf40 RDI: 0000000000000001
[    9.814153][  T156] RBP: 00007ffd72ba8f80 R08: 0000000000000000 R09: 0000000000000000
[    9.814375][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.814600][  T156] R13: 0000000000000004 R14: 000055b2964ccf40 R15: 0000000000000000
| [    9.964554][   T12] ------------[ cut here ]------------
| [    9.964860][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: 0/12
| [    9.965239][   T12] Modules linked in: netconsole netdevsim
| [    9.965727][   T12] Tainted: [W]=WARN
[    9.965822][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.965984][   T12] Workqueue: netns cleanup_net
[    9.966128][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.966294][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.966747][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[    9.966912][   T12] RAX: 00000000ffffffa6 RBX: ff1100000580cf40 RCX: 1ff4000000018eaf
[    9.967102][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000580cff0
[    9.967294][   T12] RBP: ff11000007a34000 R08: 1fe2200000b019ff R09: ff11000001b051d0
[    9.967479][   T12] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
[    9.967663][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e8
[    9.967866][   T12] FS:  0000000000000000(0000) GS:ff110000a4a05000(0000) knlGS:0000000000000000
[    9.968110][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.968265][   T12] CR2: 000055b296471948 CR3: 0000000017139002 CR4: 0000000000771ef0
[    9.968451][   T12] PKRU: 55555554
[    9.968544][   T12] Call Trace:
[    9.968637][   T12]  <TASK>
[    9.968703][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.968897][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.968993][   T12]  netif_close_many (net/core/dev.c:1804)
[    9.969115][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.969239][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.969363][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.969485][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[    9.969608][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[    9.969814][   T12]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[    9.969943][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[    9.970100][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    9.970223][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    9.970346][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[    9.970468][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.970628][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    9.970801][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    9.970929][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[    9.971062][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    9.971186][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    9.971309][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    9.971430][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    9.971554][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    9.971679][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    9.971808][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.971941][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    9.972064][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    9.972187][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    9.972311][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.972435][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.972562][   T12]  process_one_work (kernel/workqueue.c:3314)
[    9.972688][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.972817][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.972953][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.973081][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.973203][   T12]  kthread (kernel/kthread.c:436)
[    9.973296][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.973449][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.973570][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.973694][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.973856][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.973980][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.974103][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [    9.978512][   T12] ------------[ cut here ]------------
| [    9.978648][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: 0/12
| [    9.979442][   T12] Modules linked in: netconsole netdevsim
| [    9.979951][   T12] Tainted: [W]=WARN
[    9.980143][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.980297][   T12] Workqueue: netns cleanup_net
[    9.980424][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.980582][   T12] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.981120][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[    9.981273][   T12] RAX: 00000000ffffffa6 RBX: ff1100000580d240 RCX: 1ff4000000018ed5
[    9.981455][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000580d2f0
[    9.981731][   T12] RBP: ff11000007a34000 R08: 1fe2200000b01a5f R09: ff11000001b051d0
[    9.981917][   T12] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.982093][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.982273][   T12] FS:  0000000000000000(0000) GS:ff110000a4b05000(0000) knlGS:0000000000000000
[    9.982481][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.982630][   T12] CR2: 00007f1e9ed7b9dc CR3: 0000000017139005 CR4: 0000000000771ef0
[    9.982909][   T12] PKRU: 55555554
[    9.982999][   T12] Call Trace:
[    9.983089][   T12]  <TASK>
[    9.983244][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.983396][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.983546][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[    9.983668][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[    9.983885][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[    9.984003][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[    9.984123][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[    9.984242][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[    9.984359][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[    9.984479][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[    9.984598][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[    9.984802][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.984927][   T12]  cleanup_net (net/core/net_namespace.c:702)
[    9.985045][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[    9.985161][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[    9.985280][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.985398][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.985518][   T12]  process_one_work (kernel/workqueue.c:3314)
[    9.985638][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[    9.985820][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.985946][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[    9.986067][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[    9.986188][   T12]  kthread (kernel/kthread.c:436)
[    9.986280][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.986429][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[    9.986548][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[    9.986669][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[    9.986910][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[    9.987028][   T12]  ? kthread_affine_node (kernel/kthread.c:378)


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