======================================
| xx__-> [    8.995997][  T173] ------------[ cut here ]------------
| [    8.996209][  T173] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/173
| [    8.996509][  T173] Modules linked in: netdevsim
| [    8.996961][  T173] Tainted: [W]=WARN
[    8.997065][  T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.997239][  T173] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.997434][  T173] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.997920][  T173] RSP: 0018:ffa0000000607aa8 EFLAGS: 00010286
[    8.998093][  T173] RAX: 00000000ffffffa6 RBX: ff1100000b72c040 RCX: 1ff40000000c0f1b
[    8.998305][  T173] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b72c0f0
[    8.998515][  T173] RBP: ff1100000a0f4000 R08: 1fe22000016e581f R09: ff1100000d138b80
[    8.998724][  T173] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    8.998929][  T173] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000a0f4000
[    8.999178][  T173] FS:  00007fd011c89840(0000) GS:ff11000083305000(0000) knlGS:0000000000000000
[    8.999433][  T173] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.999605][  T173] CR2: 0000000000479648 CR3: 000000000518f001 CR4: 0000000000771ef0
[    8.999809][  T173] PKRU: 55555554
[    8.999911][  T173] Call Trace:
[    9.000016][  T173]  <TASK>
[    9.000088][  T173]  ? ip6_route_dev_notify (net/ipv6/route.c:6484)
[    9.000228][  T173]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.000371][  T173]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.000515][  T173]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.000620][  T173]  register_netdevice (net/core/dev.c:11488)
[    9.000763][  T173]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.000938][  T173]  register_netdev (net/core/dev.c:11552)
[    9.001075][  T173]  loopback_net_init (drivers/net/loopback.c:218)
[    9.001214][  T173]  ops_init (net/core/net_namespace.c:137)
[    9.001327][  T173]  setup_net (net/core/net_namespace.c:446)
[    9.001436][  T173]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.001572][  T173]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.001709][  T173]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.001847][  T173]  copy_net_ns (net/core/net_namespace.c:579)
[    9.002079][  T173]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.002219][  T173]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.002362][  T173]  ksys_unshare (kernel/fork.c:3243)
[    9.002506][  T173]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.002729][  T173]  ? __ia32_sys_open (fs/open.c:1374)
[    9.002871][  T173]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.003007][  T173]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.003143][  T173]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.003375][  T173]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.003519][  T173]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.003658][  T173]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.003829][  T173] RIP: 0033:0x7fd011f4bbcb
[    9.003974][  T173] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 2d 82 0f 00 	mov    0xf822d(%rip),%rcx        # 0xf8237
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 01 00 00       	mov    $0x110,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf8237
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d fd 81 0f 00 	mov    0xf81fd(%rip),%rcx        # 0xf820d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    9.004474][  T173] RSP: 002b:00007ffe6379c398 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    9.004681][  T173] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fd011f4bbcb
[    9.004886][  T173] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.005091][  T173] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.005298][  T173] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe6379e5c0
[    9.005506][  T173] R13: 0000000000000001 R14: 00007fd011c896f8 R15: 00007ffe6379f809
| [    9.054957][  T174] ------------[ cut here ]------------
| [    9.055168][  T174] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/174
| [    9.055475][  T174] Modules linked in: netdevsim
| [    9.055984][  T174] Tainted: [W]=WARN
[    9.056134][  T174] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.056364][  T174] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.056592][  T174] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.057112][  T174] RSP: 0018:ffa00000005f7020 EFLAGS: 00010286
[    9.057344][  T174] RAX: 00000000ffffffa6 RBX: ff1100000aa176c0 RCX: 1ff40000000bedca
[    9.057602][  T174] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000aa17770
[    9.057848][  T174] RBP: ff1100000a0f4000 R08: 1fe2200001542eef R09: ff1100000c8b5158
[    9.058096][  T174] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    9.058358][  T174] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.058616][  T174] FS:  00007ffa87923840(0000) GS:ff11000083285000(0000) knlGS:0000000000000000
[    9.058904][  T174] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.059127][  T174] CR2: 0000000015a16988 CR3: 000000000518f002 CR4: 0000000000771ef0
[    9.059389][  T174] PKRU: 55555554
[    9.059544][  T174] Call Trace:
[    9.059692][  T174]  <TASK>
[    9.059808][  T174]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.059992][  T174]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.060141][  T174]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.060335][  T174]  __dev_notify_flags (net/core/dev.c:9787)
[    9.060536][  T174]  ? netif_change_name (net/core/dev.c:1495)
[    9.060720][  T174]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.060901][  T174]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.061081][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.061277][  T174]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.061471][  T174]  netif_change_flags (net/core/dev.c:9820)
[    9.061659][  T174]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[    9.061841][  T174]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.062024][  T174]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.062206][  T174]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.062440][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.062624][  T174]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.062807][  T174]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.062991][  T174]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.063174][  T174]  ? __kernel_text_address (kernel/extable.c:79)
[    9.063368][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.063556][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.063738][  T174]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.063920][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.064100][  T174]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.064297][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.064483][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.064665][  T174]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.064846][  T174]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.065028][  T174]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.065211][  T174]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.065412][  T174]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.065597][  T174]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.065784][  T174]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.065968][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.066147][  T174]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.066342][  T174]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.066531][  T174]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.066716][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.066900][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.067083][  T174]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.067277][  T174]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.067465][  T174]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.067651][  T174]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.067836][  T174]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.068020][  T174]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.068201][  T174]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.068396][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.068588][  T174]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.068768][  T174]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.068952][  T174]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.069133][  T174]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.069328][  T174]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.069520][  T174]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.069700][  T174]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.069883][  T174]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.070068][  T174]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.070261][  T174]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.070450][  T174]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.070632][  T174]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.070814][  T174]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.070999][  T174]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.071181][  T174]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.071378][  T174]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.071600][  T174]  ? move_addr_to_kernel (net/socket.c:258)
[    9.071782][  T174]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.071963][  T174]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.072146][  T174]  ___sys_sendmsg (net/socket.c:2752)
[    9.072341][  T174]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.072568][  T174]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.072767][  T174]  __sys_sendmsg (net/socket.c:2784)
[    9.072948][  T174]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.073127][  T174]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.073360][  T174]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.073549][  T174]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.073730][  T174]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.073910][  T174]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.074090][  T174]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.074288][  T174]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.074507][  T174] RIP: 0033:0x7ffa87b5d08e
[    9.074694][  T174] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.075208][  T174] RSP: 002b:00007ffc35d3a480 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.075475][  T174] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ffa87b5d08e
[    9.075721][  T174] RDX: 0000000000000000 RSI: 00007ffc35d3a530 RDI: 0000000000000005
[    9.075966][  T174] RBP: 00007ffc35d3a490 R08: 0000000000000000 R09: 0000000000000000
[    9.076211][  T174] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e1b6
[    9.076478][  T174] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc35d3ac00
| [    9.162760][  T156] ------------[ cut here ]------------
| [    9.163077][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/156
| [    9.163531][  T156] Modules linked in: netdevsim
| [    9.164174][  T156] Tainted: [W]=WARN
[    9.164438][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.164707][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.165048][  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
[    9.165781][  T156] RSP: 0018:ffa00000008074f8 EFLAGS: 00010286
[    9.166040][  T156] RAX: 00000000ffffffa6 RBX: ff11000008a8f3c0 RCX: 1ff4000000100e65
[    9.166424][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008a8f470
[    9.166754][  T156] RBP: ff1100000c9f2000 R08: 1fe2200001151e8f R09: ff11000009032f48
[    9.167047][  T156] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.167357][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c9f2000
[    9.167701][  T156] FS:  00007f97852d5b80(0000) GS:ff11000083285000(0000) knlGS:0000000000000000
[    9.168041][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.168419][  T156] CR2: 00005614f5d898e0 CR3: 000000000ac86003 CR4: 0000000000771ef0
[    9.168715][  T156] PKRU: 55555554
[    9.168886][  T156] Call Trace:
[    9.169060][  T156]  <TASK>
[    9.169193][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.169428][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.169605][  T156]  register_netdevice (net/core/dev.c:11488)
[    9.169821][  T156]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.170074][  T156]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.170304][  T156] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.170578][  T156] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.170796][  T156] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.171052][  T156]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.171280][  T156]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.171539][  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))
[    9.171753][  T156]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.171925][  T156]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.172145][  T156]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.172425][  T156] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.172643][  T156]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    9.172858][  T156]  call_driver_probe (drivers/base/dd.c:629)
[    9.173074][  T156]  really_probe (drivers/base/dd.c:709)
[    9.173303][  T156]  ? driver_probe_device (drivers/base/dd.c:135)
[    9.173526][  T156]  __driver_probe_device (drivers/base/dd.c:871)
[    9.173746][  T156]  driver_probe_device (drivers/base/dd.c:901)
[    9.173960][  T156]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.174175][  T156]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.174403][  T156]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    9.174628][  T156]  __device_attach (drivers/base/dd.c:1101)
[    9.174842][  T156]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.175057][  T156]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    9.175325][  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)
[    9.175547][  T156]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    9.175765][  T156]  device_initial_probe (drivers/base/dd.c:1156)
[    9.175979][  T156]  bus_probe_device (drivers/base/bus.c:613)
[    9.176192][  T156]  device_add (drivers/base/core.c:3706)
[    9.176427][  T156]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    9.176681][  T156]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    9.176897][  T156]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    9.177113][  T156] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.177382][  T156]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.177605][  T156]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    9.177864][  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))
[    9.178081][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.178337][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.178564][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.178781][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.178952][  T156]  new_sync_write (fs/read_write.c:595)
[    9.179165][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.179387][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.179609][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.179843][  T156]  ? ksys_write (fs/read_write.c:740)
[    9.180060][  T156]  vfs_write (fs/read_write.c:688)
[    9.180306][  T156]  ksys_write (fs/read_write.c:740)
[    9.180487][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.180699][  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)
[    9.180911][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.181125][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.181363][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.181589][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.181803][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.182067][  T156] RIP: 0033:0x7f978534708e
[    9.182309][  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
[    9.182979][  T156] RSP: 002b:00007ffca6638660 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.183298][  T156] RAX: ffffffffffffffda RBX: 00007f97854c9580 RCX: 00007f978534708e
[    9.183616][  T156] RDX: 0000000000000004 RSI: 00005614f796b480 RDI: 0000000000000001
[    9.183907][  T156] RBP: 00007ffca6638670 R08: 0000000000000000 R09: 0000000000000000
[    9.184237][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.184553][  T156] R13: 0000000000000004 R14: 00005614f796b480 R15: 0000000000000000
| [    9.214526][  T156] ------------[ cut here ]------------
| [    9.214809][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/156
| [    9.215184][  T156] Modules linked in: netdevsim
| [    9.216012][  T156] Tainted: [W]=WARN
[    9.216217][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.216550][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.216827][  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
[    9.217513][  T156] RSP: 0018:ffa00000008074f8 EFLAGS: 00010286
[    9.217786][  T156] RAX: 00000000ffffffa6 RBX: ff11000004e5c340 RCX: 1ff4000000100e65
[    9.218077][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004e5c3f0
[    9.218417][  T156] RBP: ff1100000d1fa000 R08: 1fe22000009cb87f R09: ff11000009032f48
[    9.218708][  T156] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.219053][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d1fa000
[    9.219360][  T156] FS:  00007f97852d5b80(0000) GS:ff11000083285000(0000) knlGS:0000000000000000
[    9.219707][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.219967][  T156] CR2: 00005614f5d898e0 CR3: 000000000ac86003 CR4: 0000000000771ef0
[    9.220275][  T156] PKRU: 55555554
[    9.220457][  T156] Call Trace:
[    9.220631][  T156]  <TASK>
[    9.220764][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.220980][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.221155][  T156]  register_netdevice (net/core/dev.c:11488)
[    9.221386][  T156]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.221671][  T156]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.221889][  T156] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.222171][  T156] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.222436][  T156] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.222696][  T156]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.222913][  T156]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.223177][  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))
[    9.223403][  T156]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.223585][  T156]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.223800][  T156]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.224054][  T156] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.224297][  T156]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    9.224528][  T156]  call_driver_probe (drivers/base/dd.c:629)
[    9.224741][  T156]  really_probe (drivers/base/dd.c:709)
[    9.224982][  T156]  ? driver_probe_device (drivers/base/dd.c:135)
[    9.225199][  T156]  __driver_probe_device (drivers/base/dd.c:871)
[    9.225460][  T156]  driver_probe_device (drivers/base/dd.c:901)
[    9.225683][  T156]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.225917][  T156]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.226135][  T156]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    9.226363][  T156]  __device_attach (drivers/base/dd.c:1101)
[    9.226581][  T156]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.226799][  T156]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    9.227052][  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)
[    9.227294][  T156]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    9.227533][  T156]  device_initial_probe (drivers/base/dd.c:1156)
[    9.227750][  T156]  bus_probe_device (drivers/base/bus.c:613)
[    9.227979][  T156]  device_add (drivers/base/core.c:3706)
[    9.228195][  T156]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    9.228471][  T156]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    9.228684][  T156]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    9.228900][  T156] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.229153][  T156]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.229383][  T156]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    9.229652][  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))
[    9.229867][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.230081][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.230327][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.230576][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.230751][  T156]  new_sync_write (fs/read_write.c:595)
[    9.230972][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.231192][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.231427][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.231901][  T156]  ? ksys_write (fs/read_write.c:740)
[    9.232153][  T156]  vfs_write (fs/read_write.c:688)
[    9.232474][  T156]  ksys_write (fs/read_write.c:740)
[    9.232649][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.232861][  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)
[    9.233189][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.233421][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.233632][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.233842][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.234055][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.234325][  T156] RIP: 0033:0x7f978534708e
[    9.234554][  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
[    9.235464][  T156] RSP: 002b:00007ffca6638690 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.235763][  T156] RAX: ffffffffffffffda RBX: 00007f97854c9580 RCX: 00007f978534708e
[    9.236053][  T156] RDX: 0000000000000004 RSI: 00005614f796b480 RDI: 0000000000000001
[    9.236513][  T156] RBP: 00007ffca66386a0 R08: 0000000000000000 R09: 0000000000000000
[    9.236800][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[    9.237086][  T156] R13: 0000000000000004 R14: 00005614f796b480 R15: 0000000000000000
| [    9.441873][  T189] ------------[ cut here ]------------
| [    9.442057][  T189] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/189
| [    9.442306][  T189] Modules linked in: netdevsim
| [    9.442722][  T189] Tainted: [W]=WARN
[    9.442823][  T189] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.442989][  T189] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.443160][  T189] 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
[    9.443637][  T189] RSP: 0018:ffa00000006f6ff8 EFLAGS: 00010286
[    9.443804][  T189] RAX: 00000000ffffffa6 RBX: ff11000004c4c340 RCX: 1ff40000000dedc5
[    9.444001][  T189] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004c4c3f0
[    9.444195][  T189] RBP: ff1100000c9f2000 R08: 1fe220000098987f R09: ff1100000d178b58
[    9.444396][  T189] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.444598][  T189] R13: 0000000000000000 R14: ffa00000006f7140 R15: ff110000095ea350
[    9.444796][  T189] FS:  00007f891a43d840(0000) GS:ff11000083185000(0000) knlGS:0000000000000000
[    9.445025][  T189] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.445190][  T189] CR2: 00000000312f8988 CR3: 0000000004f2e004 CR4: 0000000000771ef0
[    9.445393][  T189] PKRU: 55555554
[    9.445497][  T189] Call Trace:
[    9.445594][  T189]  <TASK>
[    9.445663][  T189]  rtmsg_ifinfo_newnet (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4541 net/core/rtnetlink.c:4567)
[    9.445797][  T189]  __dev_change_net_namespace (net/core/dev.c:12635)
[    9.445962][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.446094][  T189]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.446227][  T189]  ? default_device_exit_batch (net/core/dev.c:13091)
[    9.446510][  T189]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.446642][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.446774][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.446905][  T189]  ? 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))
[    9.447039][  T189]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.447170][  T189]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.447311][  T189]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    9.447447][  T189]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.447578][  T189]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.447741][  T189]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.447874][  T189]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.448005][  T189]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.448134][  T189]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.448271][  T189]  ? __kernel_text_address (kernel/extable.c:79)
[    9.448403][  T189]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.448542][  T189]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.448674][  T189]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.448803][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.448933][  T189]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.449062][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.449192][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.449326][  T189]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.449461][  T189]  ? __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)
[    9.449592][  T189]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.449721][  T189]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.449852][  T189]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.449980][  T189]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.450112][  T189]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.450252][  T189]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.450383][  T189]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.450515][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.450644][  T189]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.450774][  T189]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.450902][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.451033][  T189]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.451171][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.451307][  T189]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.451441][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.451572][  T189]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.451702][  T189]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.451832][  T189]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.451960][  T189]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.452087][  T189]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.452217][  T189]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.452353][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.452486][  T189]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.452616][  T189]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.452746][  T189]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.452878][  T189]  ? 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))
[    9.453006][  T189]  ? 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))
[    9.453137][  T189]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.453273][  T189]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.453403][  T189]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.453538][  T189]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.453667][  T189]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.453798][  T189]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.453930][  T189]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.454059][  T189]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.454186][  T189]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.454351][  T189]  ? move_addr_to_kernel (net/socket.c:258)
[    9.454484][  T189]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.454612][  T189]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.454742][  T189]  ___sys_sendmsg (net/socket.c:2752)
[    9.454869][  T189]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.455031][  T189]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.455171][  T189]  __sys_sendmsg (net/socket.c:2784)
[    9.455309][  T189]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.455444][  T189]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.455613][  T189]  ? 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)
[    9.455744][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.455872][  T189]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.456001][  T189]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.456131][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.456265][  T189]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.456430][  T189] RIP: 0033:0x7f891a67708e
[    9.456566][  T189] 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
[    9.457024][  T189] RSP: 002b:00007ffd2fff11f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.457219][  T189] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f891a67708e
[    9.457423][  T189] RDX: 0000000000000000 RSI: 00007ffd2fff12a0 RDI: 0000000000000005
[    9.457618][  T189] RBP: 00007ffd2fff1200 R08: 0000000000000000 R09: 0000000000000000
[    9.457814][  T189] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e1b6
[    9.458009][  T189] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd2fff1960
| [    9.470518][  T189] ------------[ cut here ]------------
| [    9.470674][  T189] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/189
| [    9.470909][  T189] Modules linked in: netdevsim
| [    9.471327][  T189] Tainted: [W]=WARN
[    9.471434][  T189] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.471600][  T189] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.471775][  T189] 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
[    9.472255][  T189] RSP: 0018:ffa00000006f6fc0 EFLAGS: 00010286
[    9.472426][  T189] RAX: 00000000ffffffa6 RBX: ff11000004c4cf40 RCX: 1ff40000000dedbe
[    9.472621][  T189] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004c4cff0
[    9.472815][  T189] RBP: ff1100000c9f2000 R08: 1fe22000009899ff R09: ff1100000d178b58
[    9.473014][  T189] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.473210][  T189] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffb3d59ab0
[    9.473922][  T189] FS:  00007f891a43d840(0000) GS:ff11000083185000(0000) knlGS:0000000000000000
[    9.474154][  T189] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.474379][  T189] CR2: 00000000312f8988 CR3: 0000000004f2e004 CR4: 0000000000771ef0
[    9.474582][  T189] PKRU: 55555554
[    9.474682][  T189] Call Trace:
[    9.474781][  T189]  <TASK>
[    9.474849][  T189]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.474982][  T189]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.475085][  T189]  __dev_change_net_namespace (net/core/dev.c:12695)
[    9.475307][  T189]  ? default_device_exit_batch (net/core/dev.c:13091)
[    9.475479][  T189]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.475611][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.475743][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.475875][  T189]  ? 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))
[    9.476009][  T189]  ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1))
[    9.476142][  T189]  ? is_bpf_text_address (./include/linux/rcupdate.h:871 kernel/bpf/core.c:749)
[    9.476330][  T189]  do_setlink.isra.0 (net/core/rtnetlink.c:3108)
[    9.476471][  T189]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.476603][  T189]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.476767][  T189]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.476898][  T189]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.477031][  T189]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.477161][  T189]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.477347][  T189]  ? __kernel_text_address (kernel/extable.c:79)
[    9.477486][  T189]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.477621][  T189]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.477753][  T189]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.477885][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.478016][  T189]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.478149][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.478336][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.478472][  T189]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.478616][  T189]  ? __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)
[    9.478749][  T189]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.478882][  T189]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.479015][  T189]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.479147][  T189]  ? nla_get_range_signed (lib/nlattr.c:270)
[    9.479340][  T189]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.479481][  T189]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.479617][  T189]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.479750][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.479882][  T189]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.480014][  T189]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.480145][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.480335][  T189]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.480477][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.480610][  T189]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.480743][  T189]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.480878][  T189]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.481010][  T189]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.481142][  T189]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.481330][  T189]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.481469][  T189]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.481604][  T189]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.481740][  T189]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.481874][  T189]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.482008][  T189]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.482142][  T189]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.482333][  T189]  ? 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))
[    9.482473][  T189]  ? 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))
[    9.482608][  T189]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.482745][  T189]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.482882][  T189]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.483017][  T189]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.483152][  T189]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.483341][  T189]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.483480][  T189]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.483613][  T189]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.483744][  T189]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.483909][  T189]  ? move_addr_to_kernel (net/socket.c:258)
[    9.484042][  T189]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.484174][  T189]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.484364][  T189]  ___sys_sendmsg (net/socket.c:2752)
[    9.484500][  T189]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.484666][  T189]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.484810][  T189]  __sys_sendmsg (net/socket.c:2784)
[    9.484946][  T189]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.485078][  T189]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.485302][  T189]  ? 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)
[    9.485441][  T189]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.485575][  T189]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.485707][  T189]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.485840][  T189]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.485974][  T189]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.486138][  T189] RIP: 0033:0x7f891a67708e
[    9.486337][  T189] 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
[    9.486836][  T189] RSP: 002b:00007ffd2fff11f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.487039][  T189] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f891a67708e
[    9.487238][  T189] RDX: 0000000000000000 RSI: 00007ffd2fff12a0 RDI: 0000000000000005
[    9.487500][  T189] RBP: 00007ffd2fff1200 R08: 0000000000000000 R09: 0000000000000000
[    9.487697][  T189] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e1b6
[    9.487895][  T189] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd2fff1960
| [    9.579416][  T191] ------------[ cut here ]------------
| [    9.579638][  T191] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/191
| [    9.579947][  T191] Modules linked in: netdevsim
| [    9.580452][  T191] Tainted: [W]=WARN
[    9.580561][  T191] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.580732][  T191] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.580918][  T191] 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
[    9.581485][  T191] RSP: 0018:ffa00000006f7020 EFLAGS: 00010286
[    9.581667][  T191] RAX: 00000000ffffffa6 RBX: ff1100000c832ac0 RCX: 1ff40000000dedca
[    9.581873][  T191] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c832b70
[    9.582078][  T191] RBP: ff1100000c9f2000 R08: 1fe220000190656f R09: ff11000009035180
[    9.582361][  T191] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001
[    9.582576][  T191] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.582782][  T191] FS:  00007f159d61e840(0000) GS:ff11000083305000(0000) knlGS:0000000000000000
[    9.583025][  T191] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.583199][  T191] CR2: 0000000005f4c988 CR3: 000000000c30f006 CR4: 0000000000771ef0
[    9.583499][  T191] PKRU: 55555554
[    9.583692][  T191] Call Trace:
[    9.583801][  T191]  <TASK>
[    9.583874][  T191]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.584017][  T191]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.584121][  T191]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.584333][  T191]  __dev_notify_flags (net/core/dev.c:9787)
[    9.584478][  T191]  ? netif_change_name (net/core/dev.c:1495)
[    9.584614][  T191]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.584751][  T191]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.584886][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.585023][  T191]  ? 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))
[    9.585163][  T191]  netif_change_flags (net/core/dev.c:9820)
[    9.585386][  T191]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.585532][  T191]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.585669][  T191]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.585839][  T191]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.585975][  T191]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.586113][  T191]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.586336][  T191]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.586478][  T191]  ? __kernel_text_address (kernel/extable.c:79)
[    9.586615][  T191]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.586754][  T191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.586889][  T191]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.587025][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.587161][  T191]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.587372][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.587512][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.587647][  T191]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.587781][  T191]  ? __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)
[    9.587917][  T191]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.588053][  T191]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.588190][  T191]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.588390][  T191]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.588535][  T191]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.588673][  T191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.588807][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.588942][  T191]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.589076][  T191]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.589212][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.589376][  T191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.589517][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.589653][  T191]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.589788][  T191]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.589926][  T191]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.590061][  T191]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.590197][  T191]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.590344][  T191]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.590487][  T191]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.590626][  T191]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.590761][  T191]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.590898][  T191]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.591033][  T191]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.591171][  T191]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.591317][  T191]  ? 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))
[    9.591460][  T191]  ? 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))
[    9.591599][  T191]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.591737][  T191]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.591873][  T191]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.592011][  T191]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.592149][  T191]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.592292][  T191]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.592435][  T191]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.592573][  T191]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.592711][  T191]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.592880][  T191]  ? move_addr_to_kernel (net/socket.c:258)
[    9.593017][  T191]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.593152][  T191]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.593295][  T191]  ___sys_sendmsg (net/socket.c:2752)
[    9.593433][  T191]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.593605][  T191]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.593754][  T191]  __sys_sendmsg (net/socket.c:2784)
[    9.593889][  T191]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.594023][  T191]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.594194][  T191]  ? 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)
[    9.594336][  T191]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.594477][  T191]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.594612][  T191]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.594751][  T191]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.594888][  T191]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.595057][  T191] RIP: 0033:0x7f159d85808e
[    9.595200][  T191] 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
[    9.595693][  T191] RSP: 002b:00007ffc03bd1d40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.595899][  T191] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f159d85808e
[    9.596103][  T191] RDX: 0000000000000000 RSI: 00007ffc03bd1df0 RDI: 0000000000000005
[    9.596313][  T191] RBP: 00007ffc03bd1d50 R08: 0000000000000000 R09: 0000000000000000
[    9.596521][  T191] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e1b6
[    9.596723][  T191] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc03bd24b0
| [    9.650029][  T195] ------------[ cut here ]------------
| [    9.650231][  T195] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/195
| [    9.650540][  T195] Modules linked in: netdevsim
| [    9.651049][  T195] Tainted: [W]=WARN
[    9.651199][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.651433][  T195] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.651657][  T195] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.652184][  T195] RSP: 0018:ffa00000007a7020 EFLAGS: 00010286
[    9.652427][  T195] RAX: 00000000ffffffa6 RBX: ff11000004e56940 RCX: 1ff40000000f4dca
[    9.652691][  T195] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004e569f0
[    9.652938][  T195] RBP: ff1100000d1fa000 R08: 1fe22000009cad3f R09: ff11000004ab5180
[    9.653189][  T195] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[    9.653456][  T195] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.653708][  T195] FS:  00007f03f5009840(0000) GS:ff11000083285000(0000) knlGS:0000000000000000
[    9.653997][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.654221][  T195] CR2: 0000000017e66988 CR3: 0000000004f8d004 CR4: 0000000000771ef0
[    9.654491][  T195] PKRU: 55555554
[    9.654643][  T195] Call Trace:
[    9.654792][  T195]  <TASK>
[    9.654911][  T195]  ? __local_bh_enable_ip (kernel/softirq.c:455)
[    9.655100][  T195]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.655298][  T195]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.655460][  T195]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.655642][  T195]  __dev_notify_flags (net/core/dev.c:9787)
[    9.655826][  T195]  ? netif_change_name (net/core/dev.c:1495)
[    9.656008][  T195]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.656191][  T195]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.656386][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.656581][  T195]  ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2))
[    9.656768][  T195]  netif_change_flags (net/core/dev.c:9820)
[    9.656953][  T195]  do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1))
[    9.657138][  T195]  ? rtnl_link_get_size (net/core/rtnetlink.c:716)
[    9.657437][  T195]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.657730][  T195]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    9.657966][  T195]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.658202][  T195]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[    9.658462][  T195]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.658702][  T195]  ? __kernel_text_address (kernel/extable.c:79)
[    9.658941][  T195]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.659192][  T195]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.659474][  T195]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.659732][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.659998][  T195]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[    9.660177][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.660372][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.660559][  T195]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[    9.660743][  T195]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820)
[    9.660923][  T195]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[    9.661106][  T195]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149)
[    9.661300][  T195]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[    9.661494][  T195]  ? __rtnl_newlink (net/core/rtnetlink.c:4000)
[    9.661680][  T195]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.661865][  T195]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.662046][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.662230][  T195]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.662429][  T195]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.662612][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.662799][  T195]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.662981][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.663163][  T195]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.663358][  T195]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.663550][  T195]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.663733][  T195]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.663918][  T195]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.664100][  T195]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.664297][  T195]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.664491][  T195]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.664672][  T195]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.664858][  T195]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.665040][  T195]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.665223][  T195]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.665430][  T195]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.665612][  T195]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.665803][  T195]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.665987][  T195]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.666169][  T195]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.666364][  T195]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.666554][  T195]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.666738][  T195]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.666923][  T195]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.667110][  T195]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.667306][  T195]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.667530][  T195]  ? move_addr_to_kernel (net/socket.c:258)
[    9.667717][  T195]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[    9.667899][  T195]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.668083][  T195]  ___sys_sendmsg (net/socket.c:2752)
[    9.668274][  T195]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[    9.668501][  T195]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.668695][  T195]  __sys_sendmsg (net/socket.c:2784)
[    9.668879][  T195]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.669059][  T195]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[    9.669290][  T195]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.669479][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.669662][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.669846][  T195]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.670028][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.670212][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.670514][  T195] RIP: 0033:0x7f03f524308e
[    9.670703][  T195] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.671230][  T195] RSP: 002b:00007fff05ea8580 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.671499][  T195] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f03f524308e
[    9.671748][  T195] RDX: 0000000000000000 RSI: 00007fff05ea8630 RDI: 0000000000000005
[    9.671996][  T195] RBP: 00007fff05ea8590 R08: 0000000000000000 R09: 0000000000000000
[    9.672262][  T195] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e1b6
[    9.672520][  T195] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fff05ea8cf0
| [   30.715311][  T156] ------------[ cut here ]------------
| [   30.715696][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/156
| [   30.716089][  T156] Modules linked in: netconsole netdevsim [last unloaded: netconsole]
| [   30.716727][  T156] Tainted: [W]=WARN
[   30.716856][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.717067][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.717327][  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
[   30.717920][  T156] RSP: 0018:ffa00000008075a8 EFLAGS: 00010286
[   30.718134][  T156] RAX: 00000000ffffffa6 RBX: ff110000055581c0 RCX: 1ff4000000100e7b
[   30.718386][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000005558270
[   30.718640][  T156] RBP: ff1100000c9f2000 R08: 1fe2200000aab04f R09: ff11000009032f70
[   30.718890][  T156] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   30.719138][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000807698
[   30.719390][  T156] FS:  00007f97852d5b80(0000) GS:ff11000083305000(0000) knlGS:0000000000000000
[   30.719684][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.719894][  T156] CR2: 00005614f7968ea8 CR3: 000000000ac86002 CR4: 0000000000771ef0
[   30.720147][  T156] PKRU: 55555554
[   30.720282][  T156] Call Trace:
[   30.720405][  T156]  <TASK>
[   30.720495][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.720665][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.720792][  T156]  netif_close_many (net/core/dev.c:1804)
[   30.720956][  T156]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.721122][  T156]  ? __dev_close_many (net/core/dev.c:1781)
[   30.721294][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   30.721465][  T156]  netif_close_many_and_unlock (net/core/dev.c:12330)
[   30.721634][  T156]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[   30.721838][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[   30.722044][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.722209][  T156]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   30.722383][  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)
[   30.722555][  T156]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   30.722720][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.722924][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   30.723089][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[   30.723370][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   30.723536][  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)
[   30.723702][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   30.723865][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.724029][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   30.724195][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   30.724493][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.724659][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   30.724866][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   30.725072][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   30.725237][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   30.725563][  T156]  bus_remove_device (drivers/base/bus.c:657)
[   30.725732][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   30.725896][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[   30.726066][  T156]  device_del (drivers/base/core.c:3895)
[   30.726192][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[   30.726445][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   30.726652][  T156]  device_unregister (drivers/base/core.c:3936)
[   30.726816][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   30.727024][  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))
[   30.727189][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   30.727401][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   30.727569][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   30.727735][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   30.727900][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[   30.728025][  T156]  new_sync_write (fs/read_write.c:595)
[   30.728191][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   30.728360][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[   30.728531][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.728695][  T156]  ? ksys_write (fs/read_write.c:740)
[   30.728865][  T156]  vfs_write (fs/read_write.c:688)
[   30.728993][  T156]  ksys_write (fs/read_write.c:740)
[   30.729118][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[   30.729288][  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)
[   30.729452][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.729620][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.729783][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.729948][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.730115][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.730328][  T156] RIP: 0033:0x7f978534708e
[   30.730507][  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
[   30.731092][  T156] RSP: 002b:00007ffca6639000 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   30.731345][  T156] RAX: ffffffffffffffda RBX: 00007f97854c9580 RCX: 00007f978534708e
[   30.731600][  T156] RDX: 0000000000000004 RSI: 00005614f796b480 RDI: 0000000000000001
[   30.731848][  T156] RBP: 00007ffca6639010 R08: 0000000000000000 R09: 0000000000000000
[   30.732092][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   30.732345][  T156] R13: 0000000000000004 R14: 00005614f796b480 R15: 0000000000000000
| [   30.746912][  T156] ------------[ cut here ]------------
| [   30.747138][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/156
| [   30.747507][  T156] Modules linked in: netconsole netdevsim [last unloaded: netconsole]
| [   30.748089][  T156] Tainted: [W]=WARN
[   30.748206][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.748442][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.748651][  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
[   30.749200][  T156] RSP: 0018:ffa0000000807728 EFLAGS: 00010286
[   30.749780][  T156] RAX: 00000000ffffffa6 RBX: ff110000094687c0 RCX: 1ff4000000100eab
[   30.750016][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009468870
[   30.750253][  T156] RBP: ff1100000c9f2000 R08: 1fe220000128d10f R09: ff11000009032f48
[   30.750489][  T156] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   30.750721][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.750952][  T156] FS:  00007f97852d5b80(0000) GS:ff11000083305000(0000) knlGS:0000000000000000
[   30.751223][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.751424][  T156] CR2: 00005614f7968ea8 CR3: 000000000ac86002 CR4: 0000000000771ef0
[   30.751661][  T156] PKRU: 55555554
[   30.751780][  T156] Call Trace:
[   30.751896][  T156]  <TASK>
[   30.751978][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.752179][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.752376][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   30.752539][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[   30.752694][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   30.752853][  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)
[   30.753012][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   30.753169][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.753330][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   30.753492][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   30.753650][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.753807][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   30.754001][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   30.754195][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   30.754359][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   30.754561][  T156]  bus_remove_device (drivers/base/bus.c:657)
[   30.754722][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   30.754890][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[   30.755050][  T156]  device_del (drivers/base/core.c:3895)
[   30.755169][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[   30.755332][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   30.755495][  T156]  device_unregister (drivers/base/core.c:3936)
[   30.755649][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   30.755842][  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))
[   30.755996][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   30.756190][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   30.756349][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   30.756508][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   30.756663][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[   30.756779][  T156]  new_sync_write (fs/read_write.c:595)
[   30.756936][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   30.757091][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[   30.757256][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.757411][  T156]  ? ksys_write (fs/read_write.c:740)
[   30.757573][  T156]  vfs_write (fs/read_write.c:688)
[   30.757692][  T156]  ksys_write (fs/read_write.c:740)
[   30.757810][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[   30.757965][  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)
[   30.758119][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.758281][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.758437][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.758595][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.758750][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.758942][  T156] RIP: 0033:0x7f978534708e
[   30.759102][  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
[   30.759657][  T156] RSP: 002b:00007ffca6639000 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   30.759890][  T156] RAX: ffffffffffffffda RBX: 00007f97854c9580 RCX: 00007f978534708e
[   30.760120][  T156] RDX: 0000000000000004 RSI: 00005614f796b480 RDI: 0000000000000001
[   30.760355][  T156] RBP: 00007ffca6639010 R08: 0000000000000000 R09: 0000000000000000
[   30.760591][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   30.760821][  T156] R13: 0000000000000004 R14: 00005614f796b480 R15: 0000000000000000
| [   30.802633][  T156] ------------[ cut here ]------------
| [   30.802882][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: bash/156
| [   30.803280][  T156] Modules linked in: netconsole netdevsim [last unloaded: netconsole]
| [   30.803899][  T156] Tainted: [W]=WARN
[   30.804025][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.804232][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.804530][  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
[   30.805192][  T156] RSP: 0018:ffa00000008075a8 EFLAGS: 00010286
[   30.805467][  T156] RAX: 00000000ffffffa6 RBX: ff110000094696c0 RCX: 1ff4000000100e7b
[   30.805716][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009469770
[   30.805959][  T156] RBP: ff1100000d1fa000 R08: 1fe220000128d2ef R09: ff11000009032f70
[   30.806204][  T156] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000041
[   30.806543][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: ffa0000000807698
[   30.806788][  T156] FS:  00007f97852d5b80(0000) GS:ff11000083305000(0000) knlGS:0000000000000000
[   30.807075][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.807354][  T156] CR2: 00005614f7968ea8 CR3: 000000000ac86002 CR4: 0000000000771ef0
[   30.807608][  T156] PKRU: 55555554
[   30.807733][  T156] Call Trace:
[   30.807855][  T156]  <TASK>
[   30.807943][  T156]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   30.808112][  T156]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   30.808238][  T156]  netif_close_many (net/core/dev.c:1804)
[   30.808473][  T156]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   30.808638][  T156]  ? __dev_close_many (net/core/dev.c:1781)
[   30.808804][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   30.808975][  T156]  netif_close_many_and_unlock (net/core/dev.c:12330)
[   30.809140][  T156]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[   30.809411][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[   30.809617][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.809781][  T156]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22))
[   30.809948][  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)
[   30.810236][  T156]  ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1))
[   30.810473][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.810677][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   30.810953][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[   30.811118][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   30.811308][  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)
[   30.811478][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   30.811643][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.811920][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   30.812087][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   30.812309][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.812477][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   30.812911][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   30.813118][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   30.813294][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   30.813504][  T156]  bus_remove_device (drivers/base/bus.c:657)
[   30.813669][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   30.813947][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[   30.814115][  T156]  device_del (drivers/base/core.c:3895)
[   30.814360][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[   30.814530][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   30.814695][  T156]  device_unregister (drivers/base/core.c:3936)
[   30.814860][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   30.815179][  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))
[   30.815347][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   30.815571][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   30.815733][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   30.815896][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   30.816172][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[   30.816415][  T156]  new_sync_write (fs/read_write.c:595)
[   30.816589][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   30.816754][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[   30.816919][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.817083][  T156]  ? ksys_write (fs/read_write.c:740)
[   30.817258][  T156]  vfs_write (fs/read_write.c:688)
[   30.817502][  T156]  ksys_write (fs/read_write.c:740)
[   30.817740][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[   30.817905][  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)
[   30.818179][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.818353][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.818521][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.818686][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.818849][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.819165][  T156] RIP: 0033:0x7f978534708e
[   30.819343][  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
[   30.819925][  T156] RSP: 002b:00007ffca6639100 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   30.820295][  T156] RAX: ffffffffffffffda RBX: 00007f97854c9580 RCX: 00007f978534708e
[   30.820777][  T156] RDX: 0000000000000004 RSI: 00005614f796b480 RDI: 0000000000000001
[   30.821023][  T156] RBP: 00007ffca6639110 R08: 0000000000000000 R09: 0000000000000000
[   30.821272][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   30.821521][  T156] R13: 0000000000000004 R14: 00005614f796b480 R15: 0000000000000000
| [   30.830271][  T156] ------------[ cut here ]------------
| [   30.830545][  T156] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: bash/156
| [   30.830902][  T156] Modules linked in: netconsole netdevsim [last unloaded: netconsole]
| [   30.831669][  T156] Tainted: [W]=WARN
[   30.831837][  T156] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.832094][  T156] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   30.832369][  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
[   30.832986][  T156] RSP: 0018:ffa0000000807728 EFLAGS: 00010286
[   30.833231][  T156] RAX: 00000000ffffffa6 RBX: ff11000004f8e040 RCX: 1ff4000000100eab
[   30.833575][  T156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004f8e0f0
[   30.833856][  T156] RBP: ff1100000d1fa000 R08: 1fe22000009f1c1f R09: ff11000009032f48
[   30.834135][  T156] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   30.834530][  T156] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   30.834818][  T156] FS:  00007f97852d5b80(0000) GS:ff11000083285000(0000) knlGS:0000000000000000
[   30.835144][  T156] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.835400][  T156] CR2: 00007ff0aad81000 CR3: 000000000ac86001 CR4: 0000000000771ef0
[   30.835689][  T156] PKRU: 55555554
[   30.835856][  T156] Call Trace:
[   30.836022][  T156]  <TASK>
[   30.836151][  T156]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   30.836412][  T156]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   30.836664][  T156]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   30.836872][  T156]  ? netdev_run_todo (net/core/dev.c:11703)
[   30.837082][  T156]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[   30.837302][  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)
[   30.837519][  T156]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   30.837726][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.837930][  T156]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   30.838138][  T156] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   30.838364][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.838584][  T156] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   30.838831][  T156] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   30.839075][  T156] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[   30.839296][  T156]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[   30.839548][  T156]  bus_remove_device (drivers/base/bus.c:657)
[   30.839756][  T156]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[   30.839963][  T156]  ? device_remove_file (drivers/base/core.c:3073)
[   30.840172][  T156]  device_del (drivers/base/core.c:3895)
[   30.840356][  T156]  ? __device_link_del (./include/linux/kobject.h:89)
[   30.840575][  T156]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[   30.840782][  T156]  device_unregister (drivers/base/core.c:3936)
[   30.840989][  T156] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[   30.841232][  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))
[   30.841450][  T156]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[   30.841701][  T156]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[   30.841903][  T156]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[   30.842108][  T156]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[   30.842336][  T156]  ? kernfs_ops (fs/kernfs/file.c:128)
[   30.842511][  T156]  new_sync_write (fs/read_write.c:595)
[   30.842718][  T156]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   30.842923][  T156]  ? new_sync_read (./include/linux/ioprio.h:41)
[   30.843129][  T156]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   30.843347][  T156]  ? ksys_write (fs/read_write.c:740)
[   30.843564][  T156]  vfs_write (fs/read_write.c:688)
[   30.843736][  T156]  ksys_write (fs/read_write.c:740)
[   30.843903][  T156]  ? __ia32_sys_read (fs/read_write.c:724)
[   30.844106][  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)
[   30.844326][  T156]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   30.844538][  T156]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   30.844744][  T156]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   30.844951][  T156]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   30.845156][  T156]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   30.845413][  T156] RIP: 0033:0x7f978534708e
[   30.845631][  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
[   30.846225][  T156] RSP: 002b:00007ffca6639100 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   30.846534][  T156] RAX: ffffffffffffffda RBX: 00007f97854c9580 RCX: 00007f978534708e
[   30.846818][  T156] RDX: 0000000000000004 RSI: 00005614f796b480 RDI: 0000000000000001
[   30.847096][  T156] RBP: 00007ffca6639110 R08: 0000000000000000 R09: 0000000000000000
[   30.847399][  T156] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   30.847685][  T156] R13: 0000000000000004 R14: 00005614f796b480 R15: 0000000000000000
| [   31.000711][   T12] ------------[ cut here ]------------
| [   31.000932][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   31.001196][   T12] Modules linked in: netconsole netdevsim [last unloaded: netconsole]
| [   31.001808][   T12] Tainted: [W]=WARN
[   31.001922][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.002122][   T12] Workqueue: netns cleanup_net
[   31.002313][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.002488][   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
[   31.002942][   T12] RSP: 0018:ffa00000000c7748 EFLAGS: 00010286
[   31.003106][   T12] RAX: 00000000ffffffa6 RBX: ff1100000b72d840 RCX: 1ff4000000018eaf
[   31.003381][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b72d8f0
[   31.003576][   T12] RBP: ff1100000a0f4000 R08: 1fe22000016e5b1f R09: ff11000001b051d0
[   31.003765][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[   31.003958][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e8
[   31.004152][   T12] FS:  0000000000000000(0000) GS:ff11000083185000(0000) knlGS:0000000000000000
[   31.004464][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.004631][   T12] CR2: 00007f97854e6f98 CR3: 000000002c939005 CR4: 0000000000771ef0
[   31.004827][   T12] PKRU: 55555554
[   31.004923][   T12] Call Trace:
[   31.005022][   T12]  <TASK>
[   31.005090][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   31.005223][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   31.005414][   T12]  netif_close_many (net/core/dev.c:1804)
[   31.005549][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.005743][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.005871][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.006001][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[   31.006130][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12330)
[   31.006367][   T12]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[   31.006499][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12406)
[   31.006657][   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)
[   31.006785][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.006914][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[   31.007046][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.007208][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.007504][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   31.007632][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   31.007760][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.007892][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   31.008024][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.008153][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.008325][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   31.008452][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   31.008584][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.008715][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.008844][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.008972][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.009104][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.009231][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.009367][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.009516][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.009644][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.009779][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.009912][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.010042][   T12]  kthread (kernel/kthread.c:436)
[   31.010141][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.010312][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.010445][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.010579][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.010738][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.010867][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.010996][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.013757][   T12] ------------[ cut here ]------------
| [   31.013899][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [   31.014144][   T12] Modules linked in: netconsole netdevsim [last unloaded: netconsole]
| [   31.015460][   T12] Tainted: [W]=WARN
[   31.015559][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.015715][   T12] Workqueue: netns cleanup_net
[   31.015845][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   31.016005][   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
[   31.016498][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[   31.016659][   T12] RAX: 00000000ffffffa6 RBX: ff11000009b6a1c0 RCX: 1ff4000000018ed5
[   31.016845][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009b6a270
[   31.017030][   T12] RBP: ff1100000a0f4000 R08: 1fe220000136d44f R09: ff11000001b051d0
[   31.017350][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   31.017544][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   31.017732][   T12] FS:  0000000000000000(0000) GS:ff11000083185000(0000) knlGS:0000000000000000
[   31.017951][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.019297][   T12] CR2: 00007f97854e6f98 CR3: 000000002c939005 CR4: 0000000000771ef0
[   31.019569][   T12] PKRU: 55555554
[   31.019666][   T12] Call Trace:
[   31.019762][   T12]  <TASK>
[   31.019828][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   31.019987][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   31.020143][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[   31.020300][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[   31.020424][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[   31.020553][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[   31.020680][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[   31.020804][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.020927][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[   31.021053][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[   31.021178][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[   31.021308][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   31.021436][   T12]  cleanup_net (net/core/net_namespace.c:702)
[   31.021564][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.021688][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[   31.021814][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   31.021938][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   31.022062][   T12]  process_one_work (kernel/workqueue.c:3314)
[   31.022188][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[   31.022320][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   31.022448][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[   31.022581][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[   31.022703][   T12]  kthread (kernel/kthread.c:436)
[   31.022796][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.022949][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[   31.023071][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.023197][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[   31.023365][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.023494][   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