======================================
| xx__-> [    9.340331][  T166] ------------[ cut here ]------------
| [    9.340648][  T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: nexthop.sh/166
| [    9.340999][  T166] Modules linked in: netdevsim
| [    9.341630][  T166] Tainted: [W]=WARN
[    9.341764][  T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.342018][  T166] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.342235][  T166] 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
[    9.342849][  T166] RSP: 0018:ffa00000008574f8 EFLAGS: 00010286
[    9.343065][  T166] RAX: 00000000ffffffa6 RBX: ff1100000b2010c0 RCX: 1ff400000010ae65
[    9.343316][  T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b201170
[    9.343577][  T166] RBP: ff110000094a2000 R08: 1fe220000164022f R09: ff1100000c0eaf48
[    9.343834][  T166] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.344090][  T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000094a2000
[    9.344345][  T166] FS:  00007fde60b99b80(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[    9.344650][  T166] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.344868][  T166] CR2: 000055c8235c1138 CR3: 000000000bfa2004 CR4: 0000000000771ef0
[    9.345123][  T166] PKRU: 55555554
[    9.345251][  T166] Call Trace:
[    9.345386][  T166]  <TASK>
[    9.345476][  T166]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.345651][  T166]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.345781][  T166]  register_netdevice (net/core/dev.c:11488)
[    9.345958][  T166]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.346167][  T166]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.346341][  T166] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.346565][  T166] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.346738][  T166] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.346957][  T166]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.347128][  T166]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.347341][  T166]  ? 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))
[    9.347516][  T166]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.347647][  T166]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.347824][  T166]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.348044][  T166] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    9.348218][  T166]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    9.348398][  T166]  call_driver_probe (drivers/base/dd.c:629)
[    9.348701][  T166]  really_probe (drivers/base/dd.c:709)
[    9.348876][  T166]  ? driver_probe_device (drivers/base/dd.c:135)
[    9.349042][  T166]  __driver_probe_device (drivers/base/dd.c:871)
[    9.349209][  T166]  driver_probe_device (drivers/base/dd.c:901)
[    9.349383][  T166]  __device_attach_driver (drivers/base/dd.c:1029)
[    9.349551][  T166]  bus_for_each_drv (drivers/base/bus.c:500)
[    9.349722][  T166]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    9.350015][  T166]  __device_attach (drivers/base/dd.c:1101)
[    9.350183][  T166]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.350355][  T166]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    9.350567][  T166]  ? 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)
[    9.350736][  T166]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    9.350912][  T166]  device_initial_probe (drivers/base/dd.c:1156)
[    9.351081][  T166]  bus_probe_device (drivers/base/bus.c:613)
[    9.351252][  T166]  device_add (drivers/base/core.c:3706)
[    9.351552][  T166]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    9.351762][  T166]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    9.351935][  T166]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    9.352105][  T166] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    9.352314][  T166]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.352488][  T166]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    9.352701][  T166]  ? 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))
[    9.353117][  T166]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    9.353286][  T166]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    9.353460][  T166]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    9.353629][  T166]  ? kernfs_ops (fs/kernfs/file.c:128)
[    9.353756][  T166]  new_sync_write (fs/read_write.c:595)
[    9.353932][  T166]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.354100][  T166]  ? new_sync_read (./include/linux/ioprio.h:41)
[    9.354269][  T166]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.354448][  T166]  ? ksys_write (fs/read_write.c:740)
[    9.354623][  T166]  vfs_write (fs/read_write.c:688)
[    9.354753][  T166]  ksys_write (fs/read_write.c:740)
[    9.355118][  T166]  ? __ia32_sys_read (fs/read_write.c:724)
[    9.355290][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.355467][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.355635][  T166]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.355926][  T166]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.356098][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.356267][  T166]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.356480][  T166] RIP: 0033:0x7fde60c0b08e
[    9.356656][  T166] 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
[    9.357388][  T166] RSP: 002b:00007ffe9d4fc970 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    9.357644][  T166] RAX: ffffffffffffffda RBX: 00007fde60d8d580 RCX: 00007fde60c0b08e
[    9.357898][  T166] RDX: 0000000000000007 RSI: 000055c8235c0130 RDI: 0000000000000001
[    9.358150][  T166] RBP: 00007ffe9d4fc980 R08: 0000000000000000 R09: 0000000000000000
[    9.358409][  T166] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000007
[    9.358661][  T166] R13: 0000000000000007 R14: 000055c8235c0130 R15: 0000000000000000
| [    9.404879][  T186] ------------[ cut here ]------------
| [    9.405132][  T186] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/186
| [    9.405519][  T186] Modules linked in: netdevsim
| [    9.406085][  T186] Tainted: [W]=WARN
[    9.406238][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.406468][  T186] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.406695][  T186] 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
[    9.407235][  T186] RSP: 0018:ffa0000000507aa8 EFLAGS: 00010286
[    9.407467][  T186] RAX: 00000000ffffffa6 RBX: ff1100000b2013c0 RCX: 1ff40000000a0f1b
[    9.407717][  T186] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b201470
[    9.407976][  T186] RBP: ff11000002429000 R08: 1fe220000164028f R09: ff1100000caa0b80
[    9.408225][  T186] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.408488][  T186] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000002429000
[    9.408741][  T186] FS:  00007f49942bc840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[    9.409037][  T186] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.409257][  T186] CR2: 0000000000479648 CR3: 000000000c5ff003 CR4: 0000000000771ef0
[    9.409523][  T186] PKRU: 55555554
[    9.409673][  T186] Call Trace:
[    9.409830][  T186]  <TASK>
[    9.409971][  T186]  ? ip6_route_dev_notify (net/ipv6/route.c:6484)
[    9.410159][  T186]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.410345][  T186]  ? notifier_call_chain (kernel/notifier.c:85)
[    9.410546][  T186]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.410709][  T186]  register_netdevice (net/core/dev.c:11488)
[    9.410906][  T186]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.411132][  T186]  register_netdev (net/core/dev.c:11552)
[    9.411315][  T186]  loopback_net_init (drivers/net/loopback.c:218)
[    9.411513][  T186]  ops_init (net/core/net_namespace.c:137)
[    9.411667][  T186]  setup_net (net/core/net_namespace.c:446)
[    9.411819][  T186]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    9.412016][  T186]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    9.412204][  T186]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    9.412404][  T186]  copy_net_ns (net/core/net_namespace.c:579)
[    9.412590][  T186]  create_new_namespaces (kernel/nsproxy.c:132)
[    9.412785][  T186]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    9.412981][  T186]  ksys_unshare (kernel/fork.c:3243)
[    9.413169][  T186]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    9.413365][  T186]  ? __ia32_sys_open (fs/open.c:1374)
[    9.413555][  T186]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    9.413745][  T186]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.413938][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.414124][  T186]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.414308][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.414506][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.414729][  T186] RIP: 0033:0x7f499457ebcb
[    9.414929][  T186] 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
[    9.415481][  T186] RSP: 002b:00007fffe85d55e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
[    9.415737][  T186] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f499457ebcb
[    9.415999][  T186] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    9.416251][  T186] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    9.416515][  T186] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffe85d7810
[    9.416765][  T186] R13: 0000000000000001 R14: 00007f49942bc6f8 R15: 00007fffe85d9846
| [    9.465736][  T187] ------------[ cut here ]------------
| [    9.466044][  T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/187
| [    9.466421][  T187] Modules linked in: netdevsim
| [    9.467029][  T187] Tainted: [W]=WARN
[    9.467194][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.467495][  T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.467748][  T187] 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
[    9.468364][  T187] RSP: 0018:ffa00000004f7310 EFLAGS: 00010286
[    9.468612][  T187] RAX: 00000000ffffffa6 RBX: ff1100000d43a940 RCX: 1ff400000009ee28
[    9.468902][  T187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d43a9f0
[    9.469224][  T187] RBP: ff110000094a2000 R08: 1fe2200001a8753f R09: ff1100000c16d1d0
[    9.469557][  T187] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.469842][  T187] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.470121][  T187] FS:  00007f2741485840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[    9.470453][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.470696][  T187] CR2: 00007f2741691690 CR3: 000000000d453006 CR4: 0000000000771ef0
[    9.470984][  T187] PKRU: 55555554
[    9.471148][  T187] Call Trace:
[    9.471312][  T187]  <TASK>
[    9.471449][  T187]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.471695][  T187]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.471945][  T187]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[    9.472152][  T187]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.472367][  T187]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    9.472573][  T187]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.472777][  T187]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[    9.472988][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.473194][  T187]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.473415][  T187] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.473618][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.473819][  T187] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.474069][  T187] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.474311][  T187] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    9.474562][  T187]  devlink_reload (net/devlink/dev.c:462)
[    9.474771][  T187]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[    9.474989][  T187]  ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1196 fs/file.c:1210)
[    9.475159][  T187]  ? ns_capable (./include/linux/security.h:701 kernel/capability.c:342 kernel/capability.c:363)
[    9.475327][  T187]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    9.475546][  T187]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    9.475784][  T187]  ? __nla_validate_parse (lib/nlattr.c:635)
[    9.475997][  T187]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.476203][  T187]  ? __nla_parse (lib/nlattr.c:732)
[    9.476423][  T187]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    9.476629][  T187]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[    9.476876][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.477079][  T187]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.477281][  T187]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[    9.477499][  T187]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[    9.477706][  T187]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[    9.477951][  T187]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.478190][  T187]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[    9.478402][  T187]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.478601][  T187]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[    9.478805][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.479022][  T187]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[    9.479225][  T187]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.479438][  T187]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[    9.479640][  T187]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.479853][  T187]  ? 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))
[    9.480055][  T187]  ? 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))
[    9.480258][  T187]  genl_rcv (net/netlink/genetlink.c:1218)
[    9.480438][  T187]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.480640][  T187]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.480848][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.481053][  T187]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.481256][  T187]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.481470][  T187]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.481671][  T187]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.481878][  T187]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    9.482086][  T187]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    9.482290][  T187]  ? build_open_flags (fs/open.c:1212)
[    9.482510][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    9.482712][  T187]  ? __ia32_sys_open (fs/open.c:1374)
[    9.482923][  T187]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    9.483123][  T187]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.483374][  T187]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.483577][  T187]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.483777][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.483991][  T187]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.484191][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.484404][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.484641][  T187] RIP: 0033:0x7f27416bf08e
[    9.484856][  T187] 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
[    9.485456][  T187] RSP: 002b:00007ffff9ad0520 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    9.485733][  T187] RAX: ffffffffffffffda RBX: 00000000041d3980 RCX: 00007f27416bf08e
[    9.486014][  T187] RDX: 0000000000000040 RSI: 00000000041d3ba0 RDI: 0000000000000005
[    9.486291][  T187] RBP: 00007ffff9ad0530 R08: 00007f2741973980 R09: 000000000000000c
[    9.486581][  T187] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    9.486861][  T187] R13: 00000000041d3980 R14: 0000000000000000 R15: 0000000000000001
| [    9.553310][  T187] ------------[ cut here ]------------
| [    9.553594][  T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/187
| [    9.553962][  T187] Modules linked in: netdevsim
| [    9.554548][  T187] Tainted: [W]=WARN
[    9.554714][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.554964][  T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.555215][  T187] 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
[    9.555830][  T187] RSP: 0018:ffa00000004f7268 EFLAGS: 00010286
[    9.556085][  T187] RAX: 00000000ffffffa6 RBX: ff1100000d5047c0 RCX: 1ff400000009ee13
[    9.556382][  T187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d504870
[    9.556663][  T187] RBP: ff1100000c62a000 R08: 1fe2200001aa090f R09: ff1100000c16d1d0
[    9.556950][  T187] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.557219][  T187] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c62a000
[    9.557504][  T187] FS:  00007f2741485840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[    9.557856][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.558094][  T187] CR2: 00007f2741691690 CR3: 000000000d453006 CR4: 0000000000771ef0
[    9.558377][  T187] PKRU: 55555554
[    9.558536][  T187] Call Trace:
[    9.558716][  T187]  <TASK>
[    9.558848][  T187]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.559053][  T187]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.559217][  T187]  register_netdevice (net/core/dev.c:11488)
[    9.559452][  T187]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.559685][  T187]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.559901][  T187] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.560146][  T187] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.560362][  T187] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.560603][  T187]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.560802][  T187]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.561044][  T187]  ? 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))
[    9.561241][  T187]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.561415][  T187]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.561619][  T187]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.561865][  T187] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[    9.562105][  T187]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[    9.562340][  T187]  devlink_reload (net/devlink/dev.c:475)
[    9.562552][  T187]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[    9.562772][  T187]  ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1196 fs/file.c:1210)
[    9.562950][  T187]  ? ns_capable (./include/linux/security.h:701 kernel/capability.c:342 kernel/capability.c:363)
[    9.563117][  T187]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    9.563314][  T187]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    9.563570][  T187]  ? __nla_validate_parse (lib/nlattr.c:635)
[    9.563770][  T187]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.563979][  T187]  ? __nla_parse (lib/nlattr.c:732)
[    9.564179][  T187]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    9.564390][  T187]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[    9.564627][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.564845][  T187]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.565043][  T187]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[    9.565258][  T187]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[    9.565469][  T187]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[    9.565700][  T187]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.565953][  T187]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[    9.566150][  T187]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.566363][  T187]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[    9.566562][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.566763][  T187]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[    9.566969][  T187]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.567166][  T187]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[    9.567376][  T187]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.567593][  T187]  ? 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))
[    9.567793][  T187]  ? 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))
[    9.568001][  T187]  genl_rcv (net/netlink/genetlink.c:1218)
[    9.568162][  T187]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.568373][  T187]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.568570][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.568784][  T187]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.568991][  T187]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.569190][  T187]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.569403][  T187]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.569603][  T187]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    9.569828][  T187]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    9.570040][  T187]  ? build_open_flags (fs/open.c:1212)
[    9.570250][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    9.570465][  T187]  ? __ia32_sys_open (fs/open.c:1374)
[    9.570664][  T187]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    9.570870][  T187]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.571116][  T187]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.571320][  T187]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.571535][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.571737][  T187]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.571945][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.572145][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.572571][  T187] RIP: 0033:0x7f27416bf08e
[    9.572781][  T187] 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
[    9.573405][  T187] RSP: 002b:00007ffff9ad0520 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    9.573710][  T187] RAX: ffffffffffffffda RBX: 00000000041d3980 RCX: 00007f27416bf08e
[    9.573991][  T187] RDX: 0000000000000040 RSI: 00000000041d3ba0 RDI: 0000000000000005
[    9.574269][  T187] RBP: 00007ffff9ad0530 R08: 00007f2741973980 R09: 000000000000000c
[    9.574559][  T187] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    9.574835][  T187] R13: 00000000041d3980 R14: 0000000000000000 R15: 0000000000000001
| [    9.619611][  T190] ------------[ cut here ]------------
| [    9.619886][  T190] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/190
| [    9.620177][  T190] Modules linked in: netdevsim
| [    9.620829][  T190] Tainted: [W]=WARN
[    9.620991][  T190] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.621255][  T190] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.621683][  T190] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    9.622308][  T190] RSP: 0018:ffa00000008771b0 EFLAGS: 00010286
[    9.622593][  T190] RAX: 00000000ffffffa6 RBX: ff1100000d5059c0 RCX: 1ff400000010edfc
[    9.622916][  T190] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d505a70
[    9.623163][  T190] RBP: ff1100000c7c1000 R08: 1fe2200001aa0b4f R09: ff1100000c8caea8
[    9.623473][  T190] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.623732][  T190] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.623990][  T190] FS:  00007f433aa3b840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[    9.624273][  T190] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.624501][  T190] CR2: 00000000004a77b8 CR3: 000000000d453002 CR4: 0000000000771ef0
[    9.624780][  T190] PKRU: 55555554
[    9.624937][  T190] Call Trace:
[    9.625098][  T190]  <TASK>
[    9.625215][  T190]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.625417][  T190]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.625568][  T190]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.625753][  T190]  __dev_notify_flags (net/core/dev.c:9787)
[    9.625948][  T190]  ? netif_change_name (net/core/dev.c:1495)
[    9.626133][  T190]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.626322][  T190]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.626530][  T190]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.626716][  T190]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    9.626907][  T190]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.627090][  T190]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.627274][  T190]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.627473][  T190]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.627661][  T190]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.627878][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.628063][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.628246][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.628442][  T190]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.628705][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.628909][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.629095][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.629277][  T190]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.629471][  T190]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.629658][  T190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.629848][  T190]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.630033][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.630215][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.630411][  T190]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.630591][  T190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.630775][  T190]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.630992][  T190]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[    9.631179][  T190]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[    9.631378][  T190]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.631560][  T190]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.631742][  T190]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.631934][  T190]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.632116][  T190]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.632324][  T190]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.632528][  T190]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.632710][  T190]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.632899][  T190]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.633112][  T190]  ? move_addr_to_kernel (net/socket.c:258)
[    9.633295][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.633492][  T190]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[    9.633675][  T190]  ___sys_sendmsg (net/socket.c:2752)
[    9.633865][  T190]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[    9.634047][  T190]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.634233][  T190]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[    9.634432][  T190]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[    9.634626][  T190]  __sys_sendmsg (net/socket.c:2784)
[    9.634810][  T190]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.635003][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.635185][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.635382][  T190]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.635569][  T190]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.635754][  T190]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.635965][  T190]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.636177][  T190] RIP: 0033:0x7f433ac7508e
[    9.636375][  T190] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[    9.636906][  T190] RSP: 002b:00007ffe9d031630 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.637156][  T190] RAX: ffffffffffffffda RBX: 00007ffe9d031de8 RCX: 00007f433ac7508e
[    9.637417][  T190] RDX: 0000000000000000 RSI: 00007ffe9d0316e0 RDI: 0000000000000005
[    9.637664][  T190] RBP: 00007ffe9d031640 R08: 0000000000000000 R09: 0000000000000000
[    9.637917][  T190] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10e539
[    9.638163][  T190] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffe9d031db0
| [    9.948757][  T216] ------------[ cut here ]------------
| [    9.948981][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/216
| [    9.949290][  T216] Modules linked in: netdevsim
| [    9.949872][  T216] Tainted: [W]=WARN
[    9.949991][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.950182][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.950417][  T216] 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
[    9.950993][  T216] RSP: 0018:ffa0000000767310 EFLAGS: 00010286
[    9.951187][  T216] RAX: 00000000ffffffa6 RBX: ff11000016ecb840 RCX: 1ff40000000ece28
[    9.951440][  T216] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000016ecb8f0
[    9.951672][  T216] RBP: ff1100000c62a000 R08: 1fe2200002dd971f R09: ff1100000d75aed0
[    9.951904][  T216] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.952130][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.952378][  T216] FS:  00007f24d3441840(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[    9.952643][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.952831][  T216] CR2: 00007f24d39f6004 CR3: 0000000016e6c003 CR4: 0000000000771ef0
[    9.953100][  T216] PKRU: 55555554
[    9.953217][  T216] Call Trace:
[    9.953334][  T216]  <TASK>
[    9.954131][  T216]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.954346][  T216]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.954639][  T216]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[    9.954796][  T216]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.954951][  T216]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[    9.955105][  T216]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.955256][  T216]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[    9.955507][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.955675][  T216]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.955861][  T216] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.956017][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.956219][  T216] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.956413][  T216] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.956600][  T216] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    9.956785][  T216]  devlink_reload (net/devlink/dev.c:462)
[    9.956955][  T216]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[    9.957108][  T216]  ? devlink_resources_validate (net/devlink/resource.c:471)
[    9.957332][  T216]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    9.957490][  T216]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    9.957677][  T216]  ? __nla_validate_parse (lib/nlattr.c:635)
[    9.957828][  T216]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.957984][  T216]  ? __nla_parse (lib/nlattr.c:732)
[    9.958139][  T216]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    9.958293][  T216]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[    9.958487][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.958637][  T216]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.958785][  T216]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[    9.958942][  T216]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[    9.959123][  T216]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[    9.959311][  T216]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.959499][  T216]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[    9.959647][  T216]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.959795][  T216]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[    9.959974][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.960158][  T216]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[    9.960314][  T216]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.960468][  T216]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[    9.960618][  T216]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.960770][  T216]  ? 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))
[    9.960921][  T216]  ? 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))
[    9.961071][  T216]  genl_rcv (net/netlink/genetlink.c:1218)
[    9.961183][  T216]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.961359][  T216]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.961546][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.961695][  T216]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.961860][  T216]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.962020][  T216]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.962192][  T216]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.962346][  T216]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    9.962561][  T216]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    9.962723][  T216]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    9.962876][  T216]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.963067][  T216]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.963243][  T216]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.963397][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.963544][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.963693][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.963846][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.964032][  T216] RIP: 0033:0x7f24d367b08e
[    9.964188][  T216] 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
[    9.964739][  T216] RSP: 002b:00007ffd5c278320 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    9.964970][  T216] RAX: ffffffffffffffda RBX: 000000002206a980 RCX: 00007f24d367b08e
[    9.965193][  T216] RDX: 0000000000000038 RSI: 000000002206aba0 RDI: 0000000000000005
[    9.965421][  T216] RBP: 00007ffd5c278330 R08: 00007f24d392f980 R09: 000000000000000c
[    9.965642][  T216] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    9.965894][  T216] R13: 000000002206a980 R14: 0000000000000000 R15: 0000000000000003
| [   10.016015][  T216] ------------[ cut here ]------------
| [   10.016308][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/216
| [   10.016720][  T216] Modules linked in: netdevsim
| [   10.017290][  T216] Tainted: [W]=WARN
[   10.017471][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.017720][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.018043][  T216] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.018639][  T216] RSP: 0018:ffa0000000767268 EFLAGS: 00010286
[   10.018888][  T216] RAX: 00000000ffffffa6 RBX: ff1100000d6141c0 RCX: 1ff40000000ece13
[   10.019222][  T216] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d614270
[   10.019507][  T216] RBP: ff1100000c88a000 R08: 1fe2200001ac284f R09: ff1100000d75aed0
[   10.019779][  T216] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.020061][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c88a000
[   10.020336][  T216] FS:  00007f24d3441840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[   10.020662][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.020907][  T216] CR2: 000055c81afd9d5c CR3: 0000000016e6c006 CR4: 0000000000771ef0
[   10.021179][  T216] PKRU: 55555554
[   10.021339][  T216] Call Trace:
[   10.021511][  T216]  <TASK>
[   10.021637][  T216]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.021846][  T216]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.022009][  T216]  register_netdevice (net/core/dev.c:11488)
[   10.022209][  T216]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.022456][  T216]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   10.022659][  T216] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   10.022972][  T216] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   10.023183][  T216] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   10.023473][  T216]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   10.023676][  T216]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   10.023923][  T216]  ? 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))
[   10.024123][  T216]  ? static_obj (kernel/locking/lockdep.c:858)
[   10.024287][  T216]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   10.024503][  T216]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   10.024773][  T216] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   10.025017][  T216]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   10.025252][  T216]  devlink_reload (net/devlink/dev.c:475)
[   10.025465][  T216]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   10.025677][  T216]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   10.025923][  T216]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   10.026123][  T216]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   10.026370][  T216]  ? __nla_validate_parse (lib/nlattr.c:635)
[   10.026608][  T216]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.026818][  T216]  ? __nla_parse (lib/nlattr.c:732)
[   10.027036][  T216]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   10.027242][  T216]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   10.027500][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.027703][  T216]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.027908][  T216]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.028113][  T216]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   10.028313][  T216]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   10.028556][  T216]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.028790][  T216]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   10.028994][  T216]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.029191][  T216]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   10.029404][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.029608][  T216]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   10.029809][  T216]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.030017][  T216]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   10.030215][  T216]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.030429][  T216]  ? 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))
[   10.030630][  T216]  ? 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))
[   10.030829][  T216]  genl_rcv (net/netlink/genetlink.c:1218)
[   10.030998][  T216]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.031196][  T216]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.031404][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.031611][  T216]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.031811][  T216]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.032020][  T216]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.032221][  T216]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.032434][  T216]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   10.032636][  T216]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   10.032855][  T216]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   10.033057][  T216]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.033291][  T216]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.033506][  T216]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.033703][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.033908][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.034104][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.034303][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.034557][  T216] RIP: 0033:0x7f24d367b08e
[   10.034766][  T216] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.035364][  T216] RSP: 002b:00007ffd5c278320 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   10.035639][  T216] RAX: ffffffffffffffda RBX: 000000002206a980 RCX: 00007f24d367b08e
[   10.035926][  T216] RDX: 0000000000000038 RSI: 000000002206aba0 RDI: 0000000000000005
[   10.036203][  T216] RBP: 00007ffd5c278330 R08: 00007f24d392f980 R09: 000000000000000c
[   10.036488][  T216] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   10.036758][  T216] R13: 000000002206a980 R14: 0000000000000000 R15: 0000000000000003
| [   10.217107][  T226] ------------[ cut here ]------------
| [   10.217316][  T226] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/226
| [   10.217642][  T226] Modules linked in: netdevsim
| [   10.218129][  T226] Tainted: [W]=WARN
[   10.218249][  T226] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.218779][  T226] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.219001][  T226] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.219638][  T226] RSP: 0018:ffa00000007c7310 EFLAGS: 00010286
[   10.219835][  T226] RAX: 00000000ffffffa6 RBX: ff1100000b201240 RCX: 1ff40000000f8e28
[   10.220074][  T226] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b2012f0
[   10.220309][  T226] RBP: ff1100000c88a000 R08: 1fe220000164025f R09: ff1100000caa2ed0
[   10.220590][  T226] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.220824][  T226] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.221114][  T226] FS:  00007f4170d68840(0000) GS:ff110000adb85000(0000) knlGS:0000000000000000
[   10.221401][  T226] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.221598][  T226] CR2: 00007f417131d004 CR3: 000000000d6d3004 CR4: 0000000000771ef0
[   10.221832][  T226] PKRU: 55555554
[   10.221955][  T226] Call Trace:
[   10.222074][  T226]  <TASK>
[   10.222156][  T226]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.222361][  T226]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.222552][  T226]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   10.222711][  T226]  ? netdev_run_todo (net/core/dev.c:11703)
[   10.222870][  T226]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   10.223030][  T226]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   10.223185][  T226]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   10.223341][  T226]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.223503][  T226]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   10.223662][  T226] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   10.223820][  T226]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.223982][  T226] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   10.224177][  T226] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   10.224379][  T226] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   10.224575][  T226]  devlink_reload (net/devlink/dev.c:462)
[   10.224735][  T226]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   10.224898][  T226]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   10.225094][  T226]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   10.225247][  T226]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   10.225442][  T226]  ? __nla_validate_parse (lib/nlattr.c:635)
[   10.225599][  T226]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.225754][  T226]  ? __nla_parse (lib/nlattr.c:732)
[   10.225918][  T226]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   10.226074][  T226]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   10.226269][  T226]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.226429][  T226]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.226585][  T226]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.226743][  T226]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   10.226904][  T226]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   10.227095][  T226]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.227285][  T226]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   10.227443][  T226]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.227596][  T226]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   10.227751][  T226]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.227913][  T226]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   10.228069][  T226]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.228222][  T226]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   10.228381][  T226]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.228539][  T226]  ? 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))
[   10.228696][  T226]  ? 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))
[   10.228856][  T226]  genl_rcv (net/netlink/genetlink.c:1218)
[   10.228973][  T226]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.229131][  T226]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.229285][  T226]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.229463][  T226]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.229620][  T226]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.229777][  T226]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.229938][  T226]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.230093][  T226]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   10.230250][  T226]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   10.230422][  T226]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   10.230577][  T226]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.230769][  T226]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.230929][  T226]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.231085][  T226]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.231238][  T226]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.231397][  T226]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.231552][  T226]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.231744][  T226] RIP: 0033:0x7f4170fa208e
[   10.231912][  T226] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.232467][  T226] RSP: 002b:00007fffd2fb45c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   10.232704][  T226] RAX: ffffffffffffffda RBX: 0000000015c96980 RCX: 00007f4170fa208e
[   10.232942][  T226] RDX: 0000000000000038 RSI: 0000000015c96ba0 RDI: 0000000000000005
[   10.233176][  T226] RBP: 00007fffd2fb45d0 R08: 00007f4171256980 R09: 000000000000000c
[   10.233414][  T226] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   10.233646][  T226] R13: 0000000015c96980 R14: 0000000000000000 R15: 0000000000000003
| [   10.277255][  T226] ------------[ cut here ]------------
| [   10.277468][  T226] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/226
| [   10.277790][  T226] Modules linked in: netdevsim
| [   10.278274][  T226] Tainted: [W]=WARN
[   10.278402][  T226] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.278605][  T226] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.278813][  T226] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.279381][  T226] RSP: 0018:ffa00000007c7268 EFLAGS: 00010286
[   10.279579][  T226] RAX: 00000000ffffffa6 RBX: ff110000090e07c0 RCX: 1ff40000000f8e13
[   10.279810][  T226] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000090e0870
[   10.280046][  T226] RBP: ff1100000c4aa000 R08: 1fe220000121c10f R09: ff1100000caa2ed0
[   10.280280][  T226] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.280520][  T226] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c4aa000
[   10.280755][  T226] FS:  00007f4170d68840(0000) GS:ff110000adb85000(0000) knlGS:0000000000000000
[   10.281032][  T226] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.281230][  T226] CR2: 00007f417131d004 CR3: 000000000d6d3004 CR4: 0000000000771ef0
[   10.281471][  T226] PKRU: 55555554
[   10.281588][  T226] Call Trace:
[   10.281705][  T226]  <TASK>
[   10.281786][  T226]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.281946][  T226]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.282065][  T226]  register_netdevice (net/core/dev.c:11488)
[   10.282221][  T226]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.282420][  T226]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   10.282579][  T226] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   10.282787][  T226] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   10.282947][  T226] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   10.283141][  T226]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   10.283297][  T226]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   10.283563][  T226]  ? 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))
[   10.283719][  T226]  ? static_obj (kernel/locking/lockdep.c:858)
[   10.283846][  T226]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   10.284004][  T226]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   10.284200][  T226] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   10.284461][  T226]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   10.284656][  T226]  devlink_reload (net/devlink/dev.c:475)
[   10.284812][  T226]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   10.284976][  T226]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   10.285170][  T226]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   10.285324][  T226]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   10.285583][  T226]  ? __nla_validate_parse (lib/nlattr.c:635)
[   10.285804][  T226]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.285966][  T226]  ? __nla_parse (lib/nlattr.c:732)
[   10.286130][  T226]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   10.286287][  T226]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   10.286738][  T226]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.286904][  T226]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.287060][  T226]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.287216][  T226]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   10.287446][  T226]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   10.287637][  T226]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.287827][  T226]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   10.288048][  T226]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.288200][  T226]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   10.288419][  T226]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.288583][  T226]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   10.288736][  T226]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.288892][  T226]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   10.289046][  T226]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.289203][  T226]  ? 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))
[   10.289423][  T226]  ? 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))
[   10.289579][  T226]  genl_rcv (net/netlink/genetlink.c:1218)
[   10.289711][  T226]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.289868][  T226]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.290021][  T226]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.290177][  T226]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.290330][  T226]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.290550][  T226]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.290710][  T226]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.290867][  T226]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   10.291022][  T226]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   10.291189][  T226]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   10.291343][  T226]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.291600][  T226]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.291754][  T226]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.291914][  T226]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.292065][  T226]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.292218][  T226]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.292437][  T226]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.292629][  T226] RIP: 0033:0x7f4170fa208e
[   10.292790][  T226] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.293346][  T226] RSP: 002b:00007fffd2fb45c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   10.293650][  T226] RAX: ffffffffffffffda RBX: 0000000015c96980 RCX: 00007f4170fa208e
[   10.293886][  T226] RDX: 0000000000000038 RSI: 0000000015c96ba0 RDI: 0000000000000005
[   10.294123][  T226] RBP: 00007fffd2fb45d0 R08: 00007f4171256980 R09: 000000000000000c
[   10.294424][  T226] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   10.294658][  T226] R13: 0000000015c96980 R14: 0000000000000000 R15: 0000000000000003
| [   10.849476][  T271] ------------[ cut here ]------------
| [   10.849677][  T271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/271
| [   10.850003][  T271] Modules linked in: netdevsim
| [   10.850734][  T271] Tainted: [W]=WARN
[   10.850857][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.851059][  T271] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.851261][  T271] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.851813][  T271] RSP: 0018:ffa0000000997310 EFLAGS: 00010286
[   10.852015][  T271] RAX: 00000000ffffffa6 RBX: ff1100000d615e40 RCX: 1ff4000000132e28
[   10.852250][  T271] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d615ef0
[   10.852483][  T271] RBP: ff1100000c4aa000 R08: 1fe2200001ac2bdf R09: ff1100000d6a8bd0
[   10.852713][  T271] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   10.852953][  T271] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.853190][  T271] FS:  00007ff6f1c8b840(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[   10.853468][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.853664][  T271] CR2: 00007ff6f2240004 CR3: 0000000016f7b004 CR4: 0000000000771ef0
[   10.853902][  T271] PKRU: 55555554
[   10.854018][  T271] Call Trace:
[   10.854134][  T271]  <TASK>
[   10.854217][  T271]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.854424][  T271]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.854620][  T271]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   10.854780][  T271]  ? netdev_run_todo (net/core/dev.c:11703)
[   10.854937][  T271]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   10.855095][  T271]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   10.855251][  T271]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   10.855411][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.855565][  T271]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   10.855723][  T271] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   10.855886][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.856042][  T271] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   10.856236][  T271] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   10.856437][  T271] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   10.856632][  T271]  devlink_reload (net/devlink/dev.c:462)
[   10.856789][  T271]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   10.856948][  T271]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   10.857142][  T271]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   10.857298][  T271]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   10.857493][  T271]  ? __nla_validate_parse (lib/nlattr.c:635)
[   10.857651][  T271]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.857806][  T271]  ? __nla_parse (lib/nlattr.c:732)
[   10.857966][  T271]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   10.858120][  T271]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   10.858313][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.858470][  T271]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.858625][  T271]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.858781][  T271]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   10.858938][  T271]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   10.859129][  T271]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.859319][  T271]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   10.859476][  T271]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.859628][  T271]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   10.859782][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.859943][  T271]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   10.860097][  T271]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.860252][  T271]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   10.860410][  T271]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.860569][  T271]  ? 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))
[   10.860723][  T271]  ? 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))
[   10.860882][  T271]  genl_rcv (net/netlink/genetlink.c:1218)
[   10.860997][  T271]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.861152][  T271]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.861305][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.861467][  T271]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.861622][  T271]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.861776][  T271]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.861933][  T271]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.862086][  T271]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   10.862240][  T271]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   10.862412][  T271]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   10.862565][  T271]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.862756][  T271]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.862915][  T271]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.863069][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.863220][  T271]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.863378][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.863533][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.863725][  T271] RIP: 0033:0x7ff6f1ec508e
[   10.863889][  T271] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.864443][  T271] RSP: 002b:00007ffd59842f30 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   10.864674][  T271] RAX: ffffffffffffffda RBX: 0000000008d14980 RCX: 00007ff6f1ec508e
[   10.864904][  T271] RDX: 0000000000000038 RSI: 0000000008d14ba0 RDI: 0000000000000005
[   10.865133][  T271] RBP: 00007ffd59842f40 R08: 00007ff6f2179980 R09: 000000000000000c
[   10.865364][  T271] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   10.865595][  T271] R13: 0000000008d14980 R14: 0000000000000000 R15: 0000000000000003
| [   10.903872][  T271] ------------[ cut here ]------------
| [   10.904071][  T271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: devlink/271
| [   10.904985][  T271] Modules linked in: netdevsim
| [   10.905548][  T271] Tainted: [W]=WARN
[   10.905670][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.905873][  T271] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.906074][  T271] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[   10.906686][  T271] RSP: 0018:ffa0000000997268 EFLAGS: 00010286
[   10.906884][  T271] RAX: 00000000ffffffa6 RBX: ff11000009acedc0 RCX: 1ff4000000132e13
[   10.907115][  T271] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009acee70
[   10.907344][  T271] RBP: ff1100000c2ba000 R08: 1fe2200001359dcf R09: ff1100000d6a8bd0
[   10.907639][  T271] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   10.907872][  T271] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c2ba000
[   10.908103][  T271] FS:  00007ff6f1c8b840(0000) GS:ff110000adc05000(0000) knlGS:0000000000000000
[   10.908439][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.908635][  T271] CR2: 00007fde60daaf98 CR3: 0000000016f7b001 CR4: 0000000000771ef0
[   10.908869][  T271] PKRU: 55555554
[   10.908985][  T271] Call Trace:
[   10.909101][  T271]  <TASK>
[   10.909182][  T271]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.909339][  T271]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.909493][  T271]  register_netdevice (net/core/dev.c:11488)
[   10.909649][  T271]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.909838][  T271]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   10.910000][  T271] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   10.910197][  T271] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   10.910360][  T271] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   10.910554][  T271]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   10.910710][  T271]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   10.910908][  T271]  ? 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))
[   10.911063][  T271]  ? static_obj (kernel/locking/lockdep.c:858)
[   10.911181][  T271]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   10.911339][  T271]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   10.911542][  T271] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   10.911738][  T271]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   10.911936][  T271]  devlink_reload (net/devlink/dev.c:475)
[   10.912091][  T271]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   10.912245][  T271]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   10.912444][  T271]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   10.912599][  T271]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   10.912791][  T271]  ? __nla_validate_parse (lib/nlattr.c:635)
[   10.912950][  T271]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.913107][  T271]  ? __nla_parse (lib/nlattr.c:732)
[   10.913265][  T271]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   10.913427][  T271]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   10.913623][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.913779][  T271]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.913938][  T271]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.914097][  T271]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   10.914252][  T271]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   10.914447][  T271]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.914639][  T271]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   10.914794][  T271]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.914951][  T271]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   10.915104][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.915259][  T271]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   10.915418][  T271]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.915570][  T271]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   10.915724][  T271]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.915885][  T271]  ? 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))
[   10.916041][  T271]  ? 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))
[   10.916198][  T271]  genl_rcv (net/netlink/genetlink.c:1218)
[   10.916314][  T271]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.916475][  T271]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.916628][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.916784][  T271]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.916945][  T271]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.917102][  T271]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.917260][  T271]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.917421][  T271]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   10.917579][  T271]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   10.917746][  T271]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   10.917905][  T271]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.918099][  T271]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.918256][  T271]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.918417][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.918572][  T271]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.918727][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.918885][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.919078][  T271] RIP: 0033:0x7ff6f1ec508e
[   10.919241][  T271] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 94 bd 00 00       	call   0xbd9c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.919797][  T271] RSP: 002b:00007ffd59842f30 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   10.920037][  T271] RAX: ffffffffffffffda RBX: 0000000008d14980 RCX: 00007ff6f1ec508e
[   10.920269][  T271] RDX: 0000000000000038 RSI: 0000000008d14ba0 RDI: 0000000000000005
[   10.920508][  T271] RBP: 00007ffd59842f40 R08: 00007ff6f2179980 R09: 000000000000000c
[   10.920741][  T271] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   10.920977][  T271] R13: 0000000008d14980 R14: 0000000000000000 R15: 0000000000000003
| [   11.145928][  T283] ------------[ cut here ]------------
| [   11.146171][  T283] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/283
| [   11.147272][  T283] Modules linked in: netdevsim
| [   11.148054][  T283] Tainted: [W]=WARN
[   11.148290][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.148650][  T283] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.148906][  T283] 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
[   11.149513][  T283] RSP: 0018:ffa00000009d7310 EFLAGS: 00010286
[   11.149756][  T283] RAX: 00000000ffffffa6 RBX: ff110000090e0c40 RCX: 1ff400000013ae28
[   11.150045][  T283] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000090e0cf0
[   11.150323][  T283] RBP: ff1100000c2ba000 R08: 1fe220000121c19f R09: ff11000016e32ed0
[   11.150616][  T283] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.150902][  T283] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   11.151185][  T283] FS:  00007fe6d4b69840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[   11.151519][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.151762][  T283] CR2: 00007fe6d511e004 CR3: 000000000bdf5004 CR4: 0000000000771ef0
[   11.152044][  T283] PKRU: 55555554
[   11.152207][  T283] Call Trace:
[   11.152383][  T283]  <TASK>
[   11.152511][  T283]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.152757][  T283]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   11.153003][  T283]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   11.153209][  T283]  ? netdev_run_todo (net/core/dev.c:11703)
[   11.153425][  T283]  ? 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)
[   11.153630][  T283]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   11.153831][  T283]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   11.154040][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.154244][  T283]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   11.154461][  T283] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   11.154664][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.154875][  T283] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   11.155119][  T283] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   11.155376][  T283] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   11.155615][  T283]  devlink_reload (net/devlink/dev.c:462)
[   11.155822][  T283]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   11.156033][  T283]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   11.156277][  T283]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   11.156492][  T283]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   11.156729][  T283]  ? __nla_validate_parse (lib/nlattr.c:635)
[   11.156943][  T283]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.157149][  T283]  ? __nla_parse (lib/nlattr.c:732)
[   11.157368][  T283]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   11.157571][  T283]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   11.157814][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.158025][  T283]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.158227][  T283]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.158443][  T283]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   11.158645][  T283]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   11.158888][  T283]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   11.159127][  T283]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   11.159328][  T283]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.159541][  T283]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   11.159744][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.159958][  T283]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   11.160162][  T283]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.160373][  T283]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   11.160578][  T283]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.160785][  T283]  ? 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))
[   11.160995][  T283]  ? 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))
[   11.161204][  T283]  genl_rcv (net/netlink/genetlink.c:1218)
[   11.161383][  T283]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.161587][  T283]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.161789][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.162001][  T283]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.162204][  T283]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.162421][  T283]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.162628][  T283]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.162830][  T283]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   11.163044][  T283]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   11.163258][  T283]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   11.163474][  T283]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.163717][  T283]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.163926][  T283]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.164129][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.164332][  T283]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.164544][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.164750][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.164996][  T283] RIP: 0033:0x7fe6d4da308e
[   11.165204][  T283] 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
[   11.165807][  T283] RSP: 002b:00007fffba16a490 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   11.166102][  T283] RAX: ffffffffffffffda RBX: 000000002f0b8980 RCX: 00007fe6d4da308e
[   11.166391][  T283] RDX: 0000000000000038 RSI: 000000002f0b8ba0 RDI: 0000000000000005
[   11.166665][  T283] RBP: 00007fffba16a4a0 R08: 00007fe6d5057980 R09: 000000000000000c
[   11.166951][  T283] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   11.167230][  T283] R13: 000000002f0b8980 R14: 0000000000000000 R15: 0000000000000003
| [   11.227260][  T283] ------------[ cut here ]------------
| [   11.227491][  T283] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/283
| [   11.227820][  T283] Modules linked in: netdevsim
| [   11.228367][  T283] Tainted: [W]=WARN
[   11.228490][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.228697][  T283] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.228910][  T283] 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
[   11.229471][  T283] RSP: 0018:ffa00000009d7268 EFLAGS: 00010286
[   11.229676][  T283] RAX: 00000000ffffffa6 RBX: ff1100000d7c4c40 RCX: 1ff400000013ae13
[   11.229919][  T283] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d7c4cf0
[   11.230154][  T283] RBP: ff1100000c84a000 R08: 1fe2200001af899f R09: ff11000016e32ed0
[   11.230394][  T283] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   11.230629][  T283] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c84a000
[   11.230871][  T283] FS:  00007fe6d4b69840(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[   11.231148][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.231354][  T283] CR2: 00007fbc57d63574 CR3: 000000000bdf5006 CR4: 0000000000771ef0
[   11.231591][  T283] PKRU: 55555554
[   11.231710][  T283] Call Trace:
[   11.231826][  T283]  <TASK>
[   11.231916][  T283]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.232079][  T283]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.232200][  T283]  register_netdevice (net/core/dev.c:11488)
[   11.232364][  T283]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.232560][  T283]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   11.232721][  T283] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   11.232929][  T283] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   11.233090][  T283] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   11.233290][  T283]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   11.233507][  T283]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   11.233706][  T283]  ? 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))
[   11.233869][  T283]  ? static_obj (kernel/locking/lockdep.c:858)
[   11.233988][  T283]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   11.234148][  T283]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   11.234353][  T283] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   11.234552][  T283]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   11.234748][  T283]  devlink_reload (net/devlink/dev.c:475)
[   11.234910][  T283]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   11.235067][  T283]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   11.235267][  T283]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   11.235430][  T283]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   11.235624][  T283]  ? __nla_validate_parse (lib/nlattr.c:635)
[   11.235781][  T283]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.235945][  T283]  ? __nla_parse (lib/nlattr.c:732)
[   11.236105][  T283]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   11.236264][  T283]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   11.236467][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.236625][  T283]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.236781][  T283]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.236945][  T283]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   11.237101][  T283]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   11.237295][  T283]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   11.237498][  T283]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   11.237655][  T283]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.237812][  T283]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   11.237972][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.238132][  T283]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   11.238290][  T283]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.238453][  T283]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   11.238611][  T283]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.238771][  T283]  ? 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))
[   11.238934][  T283]  ? 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))
[   11.239090][  T283]  genl_rcv (net/netlink/genetlink.c:1218)
[   11.239207][  T283]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.239369][  T283]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.239525][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.239686][  T283]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.239864][  T283]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.240023][  T283]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.240182][  T283]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.240341][  T283]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   11.240506][  T283]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   11.240673][  T283]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   11.240828][  T283]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.241024][  T283]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.241181][  T283]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.241340][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.241502][  T283]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.241658][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.241814][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.242012][  T283] RIP: 0033:0x7fe6d4da308e
[   11.242176][  T283] 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
[   11.242740][  T283] RSP: 002b:00007fffba16a490 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   11.242980][  T283] RAX: ffffffffffffffda RBX: 000000002f0b8980 RCX: 00007fe6d4da308e
[   11.243214][  T283] RDX: 0000000000000038 RSI: 000000002f0b8ba0 RDI: 0000000000000005
[   11.243456][  T283] RBP: 00007fffba16a4a0 R08: 00007fe6d5057980 R09: 000000000000000c
[   11.243692][  T283] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   11.243930][  T283] R13: 000000002f0b8980 R14: 0000000000000000 R15: 0000000000000003
| [   11.976624][  T344] ------------[ cut here ]------------
| [   11.976876][  T344] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/344
| [   11.977244][  T344] Modules linked in: netdevsim
| [   11.977986][  T344] Tainted: [W]=WARN
[   11.978151][  T344] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.979062][  T344] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.979318][  T344] 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
[   11.979934][  T344] RSP: 0018:ffa0000000627310 EFLAGS: 00010286
[   11.980178][  T344] RAX: 00000000ffffffa6 RBX: ff11000004a59240 RCX: 1ff40000000c4e28
[   11.980467][  T344] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004a592f0
[   11.980746][  T344] RBP: ff1100000c84a000 R08: 1fe220000094b25f R09: ff11000016ff0bd0
[   11.981027][  T344] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   11.981302][  T344] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   11.981595][  T344] FS:  00007fca5950a840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[   11.981918][  T344] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.982158][  T344] CR2: 00007fca59abf004 CR3: 000000000c7b1004 CR4: 0000000000771ef0
[   11.982444][  T344] PKRU: 55555554
[   11.982607][  T344] Call Trace:
[   11.982770][  T344]  <TASK>
[   11.982904][  T344]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.983155][  T344]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   11.983404][  T344]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   11.983612][  T344]  ? netdev_run_todo (net/core/dev.c:11703)
[   11.983814][  T344]  ? 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)
[   11.984031][  T344]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   11.984234][  T344]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   11.984447][  T344]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.984654][  T344]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   11.984866][  T344] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   11.985073][  T344]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.985276][  T344] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   11.985532][  T344] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   11.985777][  T344] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   11.986027][  T344]  devlink_reload (net/devlink/dev.c:462)
[   11.986233][  T344]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   11.986451][  T344]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   11.986693][  T344]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   11.986905][  T344]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   11.987142][  T344]  ? __nla_validate_parse (lib/nlattr.c:635)
[   11.987361][  T344]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.987563][  T344]  ? __nla_parse (lib/nlattr.c:732)
[   11.987768][  T344]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   11.987983][  T344]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   11.988227][  T344]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.988441][  T344]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.988645][  T344]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.988856][  T344]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   11.989063][  T344]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   11.989300][  T344]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   11.989553][  T344]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   11.989754][  T344]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.989964][  T344]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   11.990166][  T344]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.990382][  T344]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   11.990588][  T344]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.990791][  T344]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   11.991002][  T344]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.991206][  T344]  ? 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))
[   11.991420][  T344]  ? 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))
[   11.991626][  T344]  genl_rcv (net/netlink/genetlink.c:1218)
[   11.991791][  T344]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.992004][  T344]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.992206][  T344]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.992424][  T344]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.992628][  T344]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.992830][  T344]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.993039][  T344]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.993240][  T344]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   11.993458][  T344]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   11.993673][  T344]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   11.993882][  T344]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.994123][  T344]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.994324][  T344]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.994537][  T344]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.994741][  T344]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.994948][  T344]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.995152][  T344]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.995403][  T344] RIP: 0033:0x7fca5974408e
[   11.995610][  T344] 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
[   11.996206][  T344] RSP: 002b:00007ffef88e2150 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   11.996496][  T344] RAX: ffffffffffffffda RBX: 0000000037ea5980 RCX: 00007fca5974408e
[   11.996775][  T344] RDX: 0000000000000038 RSI: 0000000037ea5ba0 RDI: 0000000000000005
[   11.997060][  T344] RBP: 00007ffef88e2160 R08: 00007fca599f8980 R09: 000000000000000c
[   11.997337][  T344] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   11.997626][  T344] R13: 0000000037ea5980 R14: 0000000000000000 R15: 0000000000000003
| [   12.047856][  T344] ------------[ cut here ]------------
| [   12.048107][  T344] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/344
| [   12.048499][  T344] Modules linked in: netdevsim
| [   12.049084][  T344] Tainted: [W]=WARN
[   12.049251][  T344] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.049508][  T344] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.049760][  T344] 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
[   12.050421][  T344] RSP: 0018:ffa0000000627268 EFLAGS: 00010286
[   12.050670][  T344] RAX: 00000000ffffffa6 RBX: ff110000090e16c0 RCX: 1ff40000000c4e13
[   12.050961][  T344] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000090e1770
[   12.051242][  T344] RBP: ff1100000be4a000 R08: 1fe220000121c2ef R09: ff11000016ff0bd0
[   12.051535][  T344] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.051814][  T344] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000be4a000
[   12.052106][  T344] FS:  00007fca5950a840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[   12.052443][  T344] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.052689][  T344] CR2: 00007fca59abf004 CR3: 000000000c7b1004 CR4: 0000000000771ef0
[   12.052978][  T344] PKRU: 55555554
[   12.053195][  T344] Call Trace:
[   12.053436][  T344]  <TASK>
[   12.053611][  T344]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.053909][  T344]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.054141][  T344]  register_netdevice (net/core/dev.c:11488)
[   12.054402][  T344]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.054714][  T344]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   12.054933][  T344] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   12.055184][  T344] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   12.055472][  T344] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   12.055737][  T344]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   12.055953][  T344]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   12.056200][  T344]  ? 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))
[   12.056421][  T344]  ? static_obj (kernel/locking/lockdep.c:858)
[   12.056645][  T344]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.056934][  T344]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   12.057189][  T344] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   12.057444][  T344]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   12.057686][  T344]  devlink_reload (net/devlink/dev.c:475)
[   12.057926][  T344]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   12.058169][  T344]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   12.058500][  T344]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   12.058729][  T344]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   12.058972][  T344]  ? __nla_validate_parse (lib/nlattr.c:635)
[   12.059177][  T344]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.059450][  T344]  ? __nla_parse (lib/nlattr.c:732)
[   12.059736][  T344]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   12.060033][  T344]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   12.060397][  T344]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.060653][  T344]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.060918][  T344]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.061134][  T344]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   12.061339][  T344]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   12.061653][  T344]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.061935][  T344]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   12.062137][  T344]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.062340][  T344]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   12.062560][  T344]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.062829][  T344]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   12.063090][  T344]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.063381][  T344]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   12.063667][  T344]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.063970][  T344]  ? 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))
[   12.064221][  T344]  ? 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))
[   12.064445][  T344]  genl_rcv (net/netlink/genetlink.c:1218)
[   12.064609][  T344]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.064810][  T344]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.065037][  T344]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.065315][  T344]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.065533][  T344]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.065738][  T344]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.065951][  T344]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.066237][  T344]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   12.066530][  T344]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   12.066837][  T344]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   12.067115][  T344]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.067420][  T344]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.067700][  T344]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.068184][  T344]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.068442][  T344]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.068724][  T344]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.068990][  T344]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.069337][  T344] RIP: 0033:0x7fca5974408e
[   12.069562][  T344] 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
[   12.070435][  T344] RSP: 002b:00007ffef88e2150 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   12.070725][  T344] RAX: ffffffffffffffda RBX: 0000000037ea5980 RCX: 00007fca5974408e
[   12.071115][  T344] RDX: 0000000000000038 RSI: 0000000037ea5ba0 RDI: 0000000000000005
[   12.071505][  T344] RBP: 00007ffef88e2160 R08: 00007fca599f8980 R09: 000000000000000c
[   12.071787][  T344] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   12.072201][  T344] R13: 0000000037ea5980 R14: 0000000000000000 R15: 0000000000000003
| [   12.292816][  T355] ------------[ cut here ]------------
| [   12.293033][  T355] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/355
| [   12.293342][  T355] Modules linked in: netdevsim
| [   12.293821][  T355] Tainted: [W]=WARN
[   12.294067][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.294254][  T355] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.294559][  T355] 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
[   12.295137][  T355] RSP: 0018:ffa0000000b87310 EFLAGS: 00010286
[   12.295325][  T355] RAX: 00000000ffffffa6 RBX: ff1100000f025240 RCX: 1ff4000000170e28
[   12.295653][  T355] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000f0252f0
[   12.295881][  T355] RBP: ff1100000be4a000 R08: 1fe2200001e04a5f R09: ff1100000c99d1d0
[   12.296104][  T355] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.296329][  T355] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.296647][  T355] FS:  00007f941d317840(0000) GS:ff110000adb85000(0000) knlGS:0000000000000000
[   12.296917][  T355] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.297127][  T355] CR2: 00007f941d8cc004 CR3: 0000000016e59003 CR4: 0000000000771ef0
[   12.297442][  T355] PKRU: 55555554
[   12.297554][  T355] Call Trace:
[   12.297668][  T355]  <TASK>
[   12.297746][  T355]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.297963][  T355]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.298149][  T355]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   12.298302][  T355]  ? netdev_run_todo (net/core/dev.c:11703)
[   12.298532][  T355]  ? 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)
[   12.298688][  T355]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   12.298838][  T355]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   12.299003][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.299155][  T355]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   12.299316][  T355] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   12.299475][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.299627][  T355] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   12.299816][  T355] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   12.300022][  T355] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   12.300230][  T355]  devlink_reload (net/devlink/dev.c:462)
[   12.300395][  T355]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   12.300545][  T355]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   12.300734][  T355]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   12.300889][  T355]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   12.301074][  T355]  ? __nla_validate_parse (lib/nlattr.c:635)
[   12.301245][  T355]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.301403][  T355]  ? __nla_parse (lib/nlattr.c:732)
[   12.301554][  T355]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   12.301720][  T355]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   12.301914][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.302066][  T355]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.302215][  T355]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.302396][  T355]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   12.302549][  T355]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   12.302732][  T355]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.302928][  T355]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   12.303077][  T355]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.303227][  T355]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   12.303382][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.303539][  T355]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   12.303689][  T355]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.303838][  T355]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   12.303996][  T355]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.304150][  T355]  ? 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))
[   12.304337][  T355]  ? 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))
[   12.304505][  T355]  genl_rcv (net/netlink/genetlink.c:1218)
[   12.304620][  T355]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.304770][  T355]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.304926][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.305114][  T355]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.305271][  T355]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.305432][  T355]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.305587][  T355]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.305738][  T355]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   12.305904][  T355]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   12.306083][  T355]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   12.306238][  T355]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.306430][  T355]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.306580][  T355]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.306732][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.306885][  T355]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.307034][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.307185][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.307378][  T355] RIP: 0033:0x7f941d55108e
[   12.307535][  T355] 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
[   12.308074][  T355] RSP: 002b:00007ffd3fcd1920 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   12.308310][  T355] RAX: ffffffffffffffda RBX: 000000003c405980 RCX: 00007f941d55108e
[   12.308543][  T355] RDX: 0000000000000038 RSI: 000000003c405ba0 RDI: 0000000000000005
[   12.308767][  T355] RBP: 00007ffd3fcd1930 R08: 00007f941d805980 R09: 000000000000000c
[   12.308998][  T355] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   12.309222][  T355] R13: 000000003c405980 R14: 0000000000000000 R15: 0000000000000003
| [   12.350185][  T355] ------------[ cut here ]------------
| [   12.350396][  T355] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: devlink/355
| [   12.350712][  T355] Modules linked in: netdevsim
| [   12.351193][  T355] Tainted: [W]=WARN
[   12.351318][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.351526][  T355] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.351731][  T355] 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
[   12.352293][  T355] RSP: 0018:ffa0000000b87268 EFLAGS: 00010286
[   12.352502][  T355] RAX: 00000000ffffffa6 RBX: ff1100000b38a4c0 RCX: 1ff4000000170e13
[   12.352734][  T355] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b38a570
[   12.352970][  T355] RBP: ff1100000c4a2000 R08: 1fe22000016714af R09: ff1100000c99d1d0
[   12.353202][  T355] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.353536][  T355] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c4a2000
[   12.353790][  T355] FS:  00007f941d317840(0000) GS:ff110000adc05000(0000) knlGS:0000000000000000
[   12.354069][  T355] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.354264][  T355] CR2: 00007fde60daaf98 CR3: 0000000016e59002 CR4: 0000000000771ef0
[   12.354510][  T355] PKRU: 55555554
[   12.354633][  T355] Call Trace:
[   12.354751][  T355]  <TASK>
[   12.354832][  T355]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.354993][  T355]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.355110][  T355]  register_netdevice (net/core/dev.c:11488)
[   12.355267][  T355]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.355464][  T355]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   12.355622][  T355] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   12.355821][  T355] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   12.356090][  T355] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   12.356283][  T355]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   12.356442][  T355]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   12.356635][  T355]  ? 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))
[   12.356897][  T355]  ? static_obj (kernel/locking/lockdep.c:858)
[   12.357014][  T355]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.357174][  T355]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   12.357402][  T355] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   12.357594][  T355]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   12.357785][  T355]  devlink_reload (net/devlink/dev.c:475)
[   12.357979][  T355]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   12.358134][  T355]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   12.358442][  T355]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   12.358597][  T355]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   12.358788][  T355]  ? __nla_validate_parse (lib/nlattr.c:635)
[   12.358951][  T355]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.359105][  T355]  ? __nla_parse (lib/nlattr.c:732)
[   12.359261][  T355]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   12.359422][  T355]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   12.359619][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.359775][  T355]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.359934][  T355]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.360090][  T355]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   12.360245][  T355]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   12.360439][  T355]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.360629][  T355]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   12.360783][  T355]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.360940][  T355]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   12.361094][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.361253][  T355]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   12.361412][  T355]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.361564][  T355]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   12.361719][  T355]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.361885][  T355]  ? 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))
[   12.362039][  T355]  ? 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))
[   12.362194][  T355]  genl_rcv (net/netlink/genetlink.c:1218)
[   12.362310][  T355]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.362470][  T355]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.362624][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.362779][  T355]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.362938][  T355]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.363091][  T355]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.363246][  T355]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.363405][  T355]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   12.363561][  T355]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   12.363728][  T355]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   12.363887][  T355]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.364181][  T355]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.364337][  T355]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.364498][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.364652][  T355]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.364916][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.365070][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.365263][  T355] RIP: 0033:0x7f941d55108e
[   12.365539][  T355] 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
[   12.366094][  T355] RSP: 002b:00007ffd3fcd1920 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   12.366440][  T355] RAX: ffffffffffffffda RBX: 000000003c405980 RCX: 00007f941d55108e
[   12.366669][  T355] RDX: 0000000000000038 RSI: 000000003c405ba0 RDI: 0000000000000005
[   12.366907][  T355] RBP: 00007ffd3fcd1930 R08: 00007f941d805980 R09: 000000000000000c
[   12.367245][  T355] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   12.367478][  T355] R13: 000000003c405980 R14: 0000000000000000 R15: 0000000000000003
| [   12.782713][  T387] ------------[ cut here ]------------
| [   12.783031][  T387] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/387
| [   12.783429][  T387] Modules linked in: netdevsim
| [   12.784029][  T387] Tainted: [W]=WARN
[   12.784189][  T387] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.784455][  T387] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.784703][  T387] 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
[   12.785282][  T387] RSP: 0018:ffa0000000c77310 EFLAGS: 00010286
[   12.785533][  T387] RAX: 00000000ffffffa6 RBX: ff11000009ace7c0 RCX: 1ff400000018ee28
[   12.785838][  T387] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009ace870
[   12.786139][  T387] RBP: ff1100000c4a2000 R08: 1fe2200001359d0f R09: ff1100000c632ed0
[   12.786430][  T387] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.786705][  T387] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.786989][  T387] FS:  00007ff7978c5840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[   12.787336][  T387] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.787591][  T387] CR2: 00007ff797e7a004 CR3: 0000000009203003 CR4: 0000000000771ef0
[   12.787891][  T387] PKRU: 55555554
[   12.788051][  T387] Call Trace:
[   12.788229][  T387]  <TASK>
[   12.788397][  T387]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.788636][  T387]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.788880][  T387]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   12.789086][  T387]  ? netdev_run_todo (net/core/dev.c:11703)
[   12.789286][  T387]  ? 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)
[   12.789523][  T387]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   12.789720][  T387]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   12.789928][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.790156][  T387]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   12.790377][  T387] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   12.790579][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.790777][  T387] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   12.791021][  T387] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   12.791295][  T387] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   12.791551][  T387]  devlink_reload (net/devlink/dev.c:462)
[   12.791757][  T387]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   12.792075][  T387]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   12.792317][  T387]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   12.792525][  T387]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   12.792787][  T387]  ? __nla_validate_parse (lib/nlattr.c:635)
[   12.793002][  T387]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.793204][  T387]  ? __nla_parse (lib/nlattr.c:732)
[   12.793424][  T387]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   12.793630][  T387]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   12.793875][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.794072][  T387]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.794269][  T387]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.794488][  T387]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   12.794688][  T387]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   12.794927][  T387]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.795162][  T387]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   12.795373][  T387]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.795568][  T387]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   12.795767][  T387]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.795978][  T387]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   12.796180][  T387]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.796388][  T387]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   12.796586][  T387]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.796788][  T387]  ? 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))
[   12.796998][  T387]  ? 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))
[   12.797200][  T387]  genl_rcv (net/netlink/genetlink.c:1218)
[   12.797373][  T387]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.797575][  T387]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.797776][  T387]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.797985][  T387]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.798184][  T387]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.798397][  T387]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.798621][  T387]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.798818][  T387]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   12.799027][  T387]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   12.799238][  T387]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   12.799453][  T387]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.799686][  T387]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.799888][  T387]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.800085][  T387]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.800281][  T387]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.800490][  T387]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.800696][  T387]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.800941][  T387] RIP: 0033:0x7ff797aff08e
[   12.801150][  T387] 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
[   12.801753][  T387] RSP: 002b:00007ffddc68dbd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   12.802037][  T387] RAX: ffffffffffffffda RBX: 000000003b099980 RCX: 00007ff797aff08e
[   12.802306][  T387] RDX: 0000000000000038 RSI: 000000003b099ba0 RDI: 0000000000000005
[   12.802603][  T387] RBP: 00007ffddc68dbe0 R08: 00007ff797db3980 R09: 000000000000000c
[   12.802880][  T387] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   12.803149][  T387] R13: 000000003b099980 R14: 0000000000000000 R15: 0000000000000003
| [   12.845978][  T387] ------------[ cut here ]------------
| [   12.846251][  T387] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/387
| [   12.846626][  T387] Modules linked in: netdevsim
| [   12.847189][  T387] Tainted: [W]=WARN
[   12.847365][  T387] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.847605][  T387] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.847857][  T387] 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
[   12.848521][  T387] RSP: 0018:ffa0000000c77268 EFLAGS: 00010286
[   12.848832][  T387] RAX: 00000000ffffffa6 RBX: ff11000016eb24c0 RCX: 1ff400000018ee13
[   12.849173][  T387] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000016eb2570
[   12.849522][  T387] RBP: ff110000094a2000 R08: 1fe2200002dd64af R09: ff1100000c632ed0
[   12.849867][  T387] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.850203][  T387] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000094a2000
[   12.850488][  T387] FS:  00007ff7978c5840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[   12.850799][  T387] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.851042][  T387] CR2: 00007ff797e7a004 CR3: 0000000009203003 CR4: 0000000000771ef0
[   12.851315][  T387] PKRU: 55555554
[   12.851485][  T387] Call Trace:
[   12.851644][  T387]  <TASK>
[   12.851785][  T387]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.851994][  T387]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.852157][  T387]  register_netdevice (net/core/dev.c:11488)
[   12.852367][  T387]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.852600][  T387]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   12.852801][  T387] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   12.853052][  T387] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   12.853250][  T387] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   12.853539][  T387]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   12.853742][  T387]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   12.853994][  T387]  ? 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))
[   12.854192][  T387]  ? static_obj (kernel/locking/lockdep.c:858)
[   12.854364][  T387]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.854564][  T387]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   12.854804][  T387] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   12.855053][  T387]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   12.855302][  T387]  devlink_reload (net/devlink/dev.c:475)
[   12.855540][  T387]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   12.855740][  T387]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   12.855986][  T387]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   12.856183][  T387]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   12.856480][  T387]  ? __nla_validate_parse (lib/nlattr.c:635)
[   12.856683][  T387]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.856891][  T387]  ? __nla_parse (lib/nlattr.c:732)
[   12.857093][  T387]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   12.857313][  T387]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   12.857575][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.857773][  T387]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.857980][  T387]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.858182][  T387]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   12.858427][  T387]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   12.858669][  T387]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.858912][  T387]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   12.859107][  T387]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.859313][  T387]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   12.859523][  T387]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.859733][  T387]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   12.859938][  T387]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.860134][  T387]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   12.860334][  T387]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.860577][  T387]  ? 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))
[   12.860784][  T387]  ? 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))
[   12.861015][  T387]  genl_rcv (net/netlink/genetlink.c:1218)
[   12.861180][  T387]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.861395][  T387]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.861596][  T387]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.861801][  T387]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.862014][  T387]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.862212][  T387]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.862425][  T387]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.862626][  T387]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   12.862831][  T387]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   12.863048][  T387]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   12.863244][  T387]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.863493][  T387]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.863696][  T387]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.863991][  T387]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.864189][  T387]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.864399][  T387]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.864605][  T387]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.864842][  T387] RIP: 0033:0x7ff797aff08e
[   12.865056][  T387] 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
[   12.865655][  T387] RSP: 002b:00007ffddc68dbd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   12.865937][  T387] RAX: ffffffffffffffda RBX: 000000003b099980 RCX: 00007ff797aff08e
[   12.866210][  T387] RDX: 0000000000000038 RSI: 000000003b099ba0 RDI: 0000000000000005
[   12.866504][  T387] RBP: 00007ffddc68dbe0 R08: 00007ff797db3980 R09: 000000000000000c
[   12.866781][  T387] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   12.867058][  T387] R13: 000000003b099980 R14: 0000000000000000 R15: 0000000000000003
| [   13.226596][  T403] ------------[ cut here ]------------
| [   13.226943][  T403] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/403
| [   13.227502][  T403] Modules linked in: netdevsim
| [   13.228363][  T403] Tainted: [W]=WARN
[   13.228603][  T403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.228970][  T403] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.229332][  T403] 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
[   13.230815][  T403] RSP: 0018:ffa0000000ce7310 EFLAGS: 00010286
[   13.231187][  T403] RAX: 00000000ffffffa6 RBX: ff1100000b38bcc0 RCX: 1ff400000019ce28
[   13.231614][  T403] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b38bd70
[   13.232025][  T403] RBP: ff110000094a2000 R08: 1fe22000016717af R09: ff1100000c0d2ed0
[   13.232449][  T403] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.232860][  T403] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   13.233272][  T403] FS:  00007f0c6c498840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[   13.233755][  T403] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.234112][  T403] CR2: 00007f0c6ca4d004 CR3: 0000000016fbf003 CR4: 0000000000771ef0
[   13.234538][  T403] PKRU: 55555554
[   13.234767][  T403] Call Trace:
[   13.235009][  T403]  <TASK>
[   13.235185][  T403]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   13.235560][  T403]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   13.235911][  T403]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   13.236206][  T403]  ? netdev_run_todo (net/core/dev.c:11703)
[   13.236516][  T403]  ? 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)
[   13.236811][  T403]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   13.237107][  T403]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   13.237416][  T403]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.237710][  T403]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   13.238009][  T403] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   13.238301][  T403]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.238608][  T403] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   13.238990][  T403] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   13.239371][  T403] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   13.239746][  T403]  devlink_reload (net/devlink/dev.c:462)
[   13.240050][  T403]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   13.240345][  T403]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   13.240716][  T403]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   13.241015][  T403]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   13.241393][  T403]  ? __nla_validate_parse (lib/nlattr.c:635)
[   13.241684][  T403]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   13.241982][  T403]  ? __nla_parse (lib/nlattr.c:732)
[   13.242274][  T403]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   13.242576][  T403]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   13.242956][  T403]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.243248][  T403]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   13.243555][  T403]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.243858][  T403]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   13.244148][  T403]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   13.244505][  T403]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.244857][  T403]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   13.245147][  T403]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   13.245453][  T403]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   13.245740][  T403]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.246050][  T403]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   13.246337][  T403]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.246636][  T403]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   13.246961][  T403]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.247254][  T403]  ? 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))
[   13.247557][  T403]  ? 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))
[   13.247856][  T403]  genl_rcv (net/netlink/genetlink.c:1218)
[   13.248112][  T403]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.248443][  T403]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.248726][  T403]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.249038][  T403]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.249330][  T403]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.249655][  T403]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.249980][  T403]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.250282][  T403]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   13.250643][  T403]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   13.250962][  T403]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   13.251257][  T403]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.251653][  T403]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.251965][  T403]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.252256][  T403]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.252578][  T403]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.252873][  T403]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.253161][  T403]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.253534][  T403] RIP: 0033:0x7f0c6c6d208e
[   13.253831][  T403] 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
[   13.254835][  T403] RSP: 002b:00007fff285820e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   13.255249][  T403] RAX: ffffffffffffffda RBX: 0000000015b3f980 RCX: 00007f0c6c6d208e
[   13.255690][  T403] RDX: 0000000000000038 RSI: 0000000015b3fba0 RDI: 0000000000000005
[   13.256129][  T403] RBP: 00007fff285820f0 R08: 00007f0c6c986980 R09: 000000000000000c
[   13.256572][  T403] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   13.256981][  T403] R13: 0000000015b3f980 R14: 0000000000000000 R15: 0000000000000003
| [   13.315218][  T403] ------------[ cut here ]------------
| [   13.315586][  T403] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/403
| [   13.316116][  T403] Modules linked in: netdevsim
| [   13.316942][  T403] Tainted: [W]=WARN
[   13.317163][  T403] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.317583][  T403] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   13.317930][  T403] 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
[   13.318821][  T403] RSP: 0018:ffa0000000ce7268 EFLAGS: 00010286
[   13.319164][  T403] RAX: 00000000ffffffa6 RBX: ff1100000a563240 RCX: 1ff400000019ce13
[   13.319561][  T403] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a5632f0
[   13.319956][  T403] RBP: ff1100000c62a000 R08: 1fe22000014ac65f R09: ff1100000c0d2ed0
[   13.320369][  T403] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   13.320771][  T403] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c62a000
[   13.321165][  T403] FS:  00007f0c6c498840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[   13.321630][  T403] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.322060][  T403] CR2: 00007f0c6ca4d004 CR3: 0000000016fbf003 CR4: 0000000000771ef0
[   13.322483][  T403] PKRU: 55555554
[   13.322710][  T403] Call Trace:
[   13.322936][  T403]  <TASK>
[   13.323123][  T403]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   13.323418][  T403]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   13.323640][  T403]  register_netdevice (net/core/dev.c:11488)
[   13.323944][  T403]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   13.324288][  T403]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   13.324609][  T403] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   13.324967][  T403] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   13.325254][  T403] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   13.325628][  T403]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   13.325912][  T403]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   13.326245][  T403]  ? 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))
[   13.326602][  T403]  ? static_obj (kernel/locking/lockdep.c:858)
[   13.326836][  T403]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   13.327139][  T403]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   13.327526][  T403] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   13.327876][  T403]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   13.328214][  T403]  devlink_reload (net/devlink/dev.c:475)
[   13.328499][  T403]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   13.328775][  T403]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   13.329125][  T403]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   13.329434][  T403]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   13.329753][  T403]  ? __nla_validate_parse (lib/nlattr.c:635)
[   13.330039][  T403]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   13.330332][  T403]  ? __nla_parse (lib/nlattr.c:732)
[   13.330653][  T403]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   13.330943][  T403]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   13.331283][  T403]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   13.331594][  T403]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   13.331901][  T403]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.332195][  T403]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   13.332498][  T403]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   13.332882][  T403]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   13.333232][  T403]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   13.333550][  T403]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   13.333840][  T403]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   13.334144][  T403]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.334447][  T403]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   13.334753][  T403]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   13.335051][  T403]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   13.335334][  T403]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.335645][  T403]  ? 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))
[   13.335943][  T403]  ? 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))
[   13.336228][  T403]  genl_rcv (net/netlink/genetlink.c:1218)
[   13.336466][  T403]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.336752][  T403]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.337044][  T403]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   13.337330][  T403]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   13.337640][  T403]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   13.337931][  T403]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.338216][  T403]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   13.338521][  T403]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   13.338809][  T403]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   13.339136][  T403]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   13.339436][  T403]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.339803][  T403]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   13.340097][  T403]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   13.340406][  T403]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   13.340700][  T403]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   13.341011][  T403]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   13.341307][  T403]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.341663][  T403] RIP: 0033:0x7f0c6c6d208e
[   13.341968][  T403] 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
[   13.342891][  T403] RSP: 002b:00007fff285820e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   13.343324][  T403] RAX: ffffffffffffffda RBX: 0000000015b3f980 RCX: 00007f0c6c6d208e
[   13.343755][  T403] RDX: 0000000000000038 RSI: 0000000015b3fba0 RDI: 0000000000000005
[   13.344176][  T403] RBP: 00007fff285820f0 R08: 00007f0c6c986980 R09: 000000000000000c
[   13.344611][  T403] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   13.345031][  T403] R13: 0000000015b3f980 R14: 0000000000000000 R15: 0000000000000003
| [  274.147869][  T916] ------------[ cut here ]------------
| [  274.148080][  T916] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/916
| [  274.148402][  T916] Modules linked in: netdevsim
| [  274.148887][  T916] Tainted: [W]=WARN
[  274.149004][  T916] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  274.149196][  T916] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  274.149401][  T916] 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
[  274.149954][  T916] RSP: 0018:ffa0000001b77310 EFLAGS: 00010286
[  274.150146][  T916] RAX: 00000000ffffffa6 RBX: ff11000009f0e640 RCX: 1ff400000036ee28
[  274.150381][  T916] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009f0e6f0
[  274.150612][  T916] RBP: ff1100000c62a000 R08: 1fe22000013e1cdf R09: ff1100000c3851d0
[  274.150846][  T916] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  274.151075][  T916] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  274.151304][  T916] FS:  00007f5848747840(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[  274.152009][  T916] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.152205][  T916] CR2: 00007f5848cfc004 CR3: 000000000d408003 CR4: 0000000000771ef0
[  274.152442][  T916] PKRU: 55555554
[  274.152559][  T916] Call Trace:
[  274.152680][  T916]  <TASK>
[  274.152762][  T916]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  274.152961][  T916]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  274.153153][  T916]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  274.153312][  T916]  ? netdev_run_todo (net/core/dev.c:11703)
[  274.153473][  T916]  ? 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)
[  274.153635][  T916]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  274.153796][  T916]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  274.153951][  T916]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.154105][  T916]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  274.154259][  T916] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  274.154420][  T916]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.154576][  T916] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  274.154776][  T916] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  274.154969][  T916] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  274.155161][  T916]  devlink_reload (net/devlink/dev.c:462)
[  274.155320][  T916]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  274.155479][  T916]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  274.155681][  T916]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  274.155837][  T916]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  274.156027][  T916]  ? __nla_validate_parse (lib/nlattr.c:635)
[  274.156184][  T916]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.156338][  T916]  ? __nla_parse (lib/nlattr.c:732)
[  274.156499][  T916]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  274.156657][  T916]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  274.156856][  T916]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.157008][  T916]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  274.157163][  T916]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  274.157318][  T916]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  274.157477][  T916]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  274.157672][  T916]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  274.157864][  T916]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  274.158015][  T916]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.158167][  T916]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  274.158319][  T916]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.158479][  T916]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  274.158634][  T916]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  274.158788][  T916]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  274.158947][  T916]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  274.159105][  T916]  ? 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))
[  274.159258][  T916]  ? 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))
[  274.159418][  T916]  genl_rcv (net/netlink/genetlink.c:1218)
[  274.159533][  T916]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  274.159699][  T916]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  274.159852][  T916]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.160008][  T916]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  274.160165][  T916]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  274.160323][  T916]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.160486][  T916]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.160644][  T916]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  274.160806][  T916]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  274.160971][  T916]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  274.161125][  T916]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  274.161316][  T916]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  274.161476][  T916]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  274.161627][  T916]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  274.161783][  T916]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  274.161936][  T916]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  274.162090][  T916]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  274.162285][  T916] RIP: 0033:0x7f584898108e
[  274.162451][  T916] 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
[  274.163002][  T916] RSP: 002b:00007ffd6478ac00 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  274.163235][  T916] RAX: ffffffffffffffda RBX: 00000000393af980 RCX: 00007f584898108e
[  274.163472][  T916] RDX: 0000000000000038 RSI: 00000000393afba0 RDI: 0000000000000005
[  274.163708][  T916] RBP: 00007ffd6478ac10 R08: 00007f5848c35980 R09: 000000000000000c
[  274.163937][  T916] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  274.164168][  T916] R13: 00000000393af980 R14: 0000000000000000 R15: 0000000000000003
| [  274.201970][  T916] ------------[ cut here ]------------
| [  274.202180][  T916] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: devlink/916
| [  274.202871][  T916] Modules linked in: netdevsim
| [  274.203370][  T916] Tainted: [W]=WARN
[  274.203489][  T916] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  274.203703][  T916] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  274.203905][  T916] 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
[  274.204458][  T916] RSP: 0018:ffa0000001b77268 EFLAGS: 00010286
[  274.204657][  T916] RAX: 00000000ffffffa6 RBX: ff11000009f0fcc0 RCX: 1ff400000036ee13
[  274.204901][  T916] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009f0fd70
[  274.205130][  T916] RBP: ff1100000c88a000 R08: 1fe22000013e1faf R09: ff1100000c3851d0
[  274.205370][  T916] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[  274.205601][  T916] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c88a000
[  274.205850][  T916] FS:  00007f5848747840(0000) GS:ff110000adc05000(0000) knlGS:0000000000000000
[  274.206124][  T916] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.206322][  T916] CR2: 00007fde60daaf98 CR3: 000000000d408005 CR4: 0000000000771ef0
[  274.206561][  T916] PKRU: 55555554
[  274.206683][  T916] Call Trace:
[  274.206800][  T916]  <TASK>
[  274.206884][  T916]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  274.207041][  T916]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  274.207160][  T916]  register_netdevice (net/core/dev.c:11488)
[  274.207317][  T916]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  274.207514][  T916]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  274.207681][  T916] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  274.207935][  T916] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  274.208112][  T916] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  274.208306][  T916]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  274.208476][  T916]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  274.208675][  T916]  ? 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))
[  274.208828][  T916]  ? static_obj (kernel/locking/lockdep.c:858)
[  274.208947][  T916]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  274.209101][  T916]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  274.209295][  T916] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  274.209495][  T916]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  274.209698][  T916]  devlink_reload (net/devlink/dev.c:475)
[  274.209854][  T916]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  274.210009][  T916]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  274.210203][  T916]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  274.210362][  T916]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  274.210552][  T916]  ? __nla_validate_parse (lib/nlattr.c:635)
[  274.210710][  T916]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.210863][  T916]  ? __nla_parse (lib/nlattr.c:732)
[  274.211017][  T916]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  274.211173][  T916]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  274.211438][  T916]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.211593][  T916]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  274.211750][  T916]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  274.211971][  T916]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  274.212126][  T916]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  274.212314][  T916]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  274.212519][  T916]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  274.212677][  T916]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.212831][  T916]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  274.212984][  T916]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.213140][  T916]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  274.213294][  T916]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  274.213452][  T916]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  274.213606][  T916]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  274.213768][  T916]  ? 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))
[  274.213921][  T916]  ? 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))
[  274.214077][  T916]  genl_rcv (net/netlink/genetlink.c:1218)
[  274.214192][  T916]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  274.214353][  T916]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  274.214507][  T916]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.214667][  T916]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  274.214822][  T916]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  274.214977][  T916]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.215132][  T916]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.215287][  T916]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  274.215445][  T916]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  274.215610][  T916]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  274.215770][  T916]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  274.215962][  T916]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  274.216117][  T916]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  274.216270][  T916]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  274.216430][  T916]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  274.216584][  T916]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  274.216744][  T916]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  274.216934][  T916] RIP: 0033:0x7f584898108e
[  274.217098][  T916] 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
[  274.217648][  T916] RSP: 002b:00007ffd6478ac00 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  274.217883][  T916] RAX: ffffffffffffffda RBX: 00000000393af980 RCX: 00007f584898108e
[  274.218114][  T916] RDX: 0000000000000038 RSI: 00000000393afba0 RDI: 0000000000000005
[  274.218344][  T916] RBP: 00007ffd6478ac10 R08: 00007f5848c35980 R09: 000000000000000c
[  274.218577][  T916] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  274.218811][  T916] R13: 00000000393af980 R14: 0000000000000000 R15: 0000000000000003
| [  274.451989][  T930] ------------[ cut here ]------------
| [  274.452195][  T930] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/930
| [  274.452517][  T930] Modules linked in: netdevsim
| [  274.452998][  T930] Tainted: [W]=WARN
[  274.453114][  T930] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  274.453306][  T930] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  274.453610][  T930] 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
[  274.454167][  T930] RSP: 0018:ffa0000001bf7310 EFLAGS: 00010286
[  274.454468][  T930] RAX: 00000000ffffffa6 RBX: ff110000095976c0 RCX: 1ff400000037ee28
[  274.454708][  T930] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009597770
[  274.454938][  T930] RBP: ff1100000c88a000 R08: 1fe22000012b2eef R09: ff1100000cbc8bd0
[  274.455172][  T930] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  274.455489][  T930] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  274.455827][  T930] FS:  00007f241b52b840(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[  274.456100][  T930] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.456296][  T930] CR2: 00007f241bae0004 CR3: 000000000a7de001 CR4: 0000000000771ef0
[  274.456617][  T930] PKRU: 55555554
[  274.456739][  T930] Call Trace:
[  274.456855][  T930]  <TASK>
[  274.456934][  T930]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  274.457130][  T930]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  274.457322][  T930]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  274.457556][  T930]  ? netdev_run_todo (net/core/dev.c:11703)
[  274.457717][  T930]  ? 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)
[  274.457875][  T930]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  274.458027][  T930]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  274.458179][  T930]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.458333][  T930]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  274.458597][  T930] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  274.458756][  T930]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.458912][  T930] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  274.459104][  T930] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  274.459298][  T930] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  274.459496][  T930]  devlink_reload (net/devlink/dev.c:462)
[  274.459651][  T930]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  274.459808][  T930]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  274.460003][  T930]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  274.460157][  T930]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  274.460345][  T930]  ? __nla_validate_parse (lib/nlattr.c:635)
[  274.460506][  T930]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.460658][  T930]  ? __nla_parse (lib/nlattr.c:732)
[  274.460820][  T930]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  274.460975][  T930]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  274.461171][  T930]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.461322][  T930]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  274.461480][  T930]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  274.461635][  T930]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  274.461791][  T930]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  274.461981][  T930]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  274.462170][  T930]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  274.462324][  T930]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.462480][  T930]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  274.462634][  T930]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.462795][  T930]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  274.462947][  T930]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  274.463099][  T930]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  274.463252][  T930]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  274.463418][  T930]  ? 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))
[  274.463572][  T930]  ? 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))
[  274.463732][  T930]  genl_rcv (net/netlink/genetlink.c:1218)
[  274.463848][  T930]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  274.464003][  T930]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  274.464154][  T930]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.464310][  T930]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  274.464470][  T930]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  274.464626][  T930]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.464786][  T930]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.464940][  T930]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  274.465093][  T930]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  274.465259][  T930]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  274.465417][  T930]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  274.465609][  T930]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  274.465774][  T930]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  274.465927][  T930]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  274.466080][  T930]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  274.466231][  T930]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  274.466388][  T930]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  274.466579][  T930] RIP: 0033:0x7f241b76508e
[  274.466750][  T930] 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
[  274.467298][  T930] RSP: 002b:00007ffcf13648e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  274.467535][  T930] RAX: ffffffffffffffda RBX: 0000000037423980 RCX: 00007f241b76508e
[  274.467769][  T930] RDX: 0000000000000038 RSI: 0000000037423ba0 RDI: 0000000000000005
[  274.468000][  T930] RBP: 00007ffcf13648f0 R08: 00007f241ba19980 R09: 000000000000000c
[  274.468229][  T930] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  274.468465][  T930] R13: 0000000037423980 R14: 0000000000000000 R15: 0000000000000003
| [  274.518157][  T930] ------------[ cut here ]------------
| [  274.518358][  T930] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/930
| [  274.518693][  T930] Modules linked in: netdevsim
| [  274.519209][  T930] Tainted: [W]=WARN
[  274.519327][  T930] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  274.519533][  T930] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  274.519747][  T930] 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
[  274.520365][  T930] RSP: 0018:ffa0000001bf7268 EFLAGS: 00010286
[  274.520557][  T930] RAX: 00000000ffffffa6 RBX: ff1100000a70db40 RCX: 1ff400000037ee13
[  274.520793][  T930] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a70dbf0
[  274.521026][  T930] RBP: ff1100000c4aa000 R08: 1fe22000014e1b7f R09: ff1100000cbc8bd0
[  274.521257][  T930] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  274.521495][  T930] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c4aa000
[  274.521737][  T930] FS:  00007f241b52b840(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[  274.522008][  T930] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.522206][  T930] CR2: 00007f241bae0004 CR3: 000000000a7de001 CR4: 0000000000771ef0
[  274.522445][  T930] PKRU: 55555554
[  274.522562][  T930] Call Trace:
[  274.522682][  T930]  <TASK>
[  274.522762][  T930]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  274.522920][  T930]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  274.523039][  T930]  register_netdevice (net/core/dev.c:11488)
[  274.523200][  T930]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  274.523401][  T930]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  274.523560][  T930] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  274.523764][  T930] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  274.523922][  T930] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  274.524117][  T930]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  274.524276][  T930]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  274.524476][  T930]  ? 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))
[  274.524632][  T930]  ? static_obj (kernel/locking/lockdep.c:858)
[  274.524755][  T930]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  274.524915][  T930]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  274.525114][  T930] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  274.525310][  T930]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  274.525512][  T930]  devlink_reload (net/devlink/dev.c:475)
[  274.525674][  T930]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  274.525830][  T930]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  274.526025][  T930]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  274.526181][  T930]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  274.526379][  T930]  ? __nla_validate_parse (lib/nlattr.c:635)
[  274.526539][  T930]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.526701][  T930]  ? __nla_parse (lib/nlattr.c:732)
[  274.526858][  T930]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  274.527014][  T930]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  274.527212][  T930]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.527375][  T930]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  274.527532][  T930]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  274.527697][  T930]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  274.527854][  T930]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  274.528048][  T930]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  274.528242][  T930]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  274.528404][  T930]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.528557][  T930]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  274.528718][  T930]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.528880][  T930]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  274.529036][  T930]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  274.529192][  T930]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  274.529352][  T930]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  274.529512][  T930]  ? 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))
[  274.529674][  T930]  ? 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))
[  274.529832][  T930]  genl_rcv (net/netlink/genetlink.c:1218)
[  274.529950][  T930]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  274.530107][  T930]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  274.530260][  T930]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.530424][  T930]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  274.530580][  T930]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  274.530742][  T930]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.530899][  T930]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.531056][  T930]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  274.531216][  T930]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  274.531389][  T930]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  274.531544][  T930]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  274.531746][  T930]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  274.531902][  T930]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  274.532057][  T930]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  274.532211][  T930]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  274.532369][  T930]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  274.532530][  T930]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  274.532730][  T930] RIP: 0033:0x7f241b76508e
[  274.532893][  T930] 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
[  274.533451][  T930] RSP: 002b:00007ffcf13648e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  274.533694][  T930] RAX: ffffffffffffffda RBX: 0000000037423980 RCX: 00007f241b76508e
[  274.533926][  T930] RDX: 0000000000000038 RSI: 0000000037423ba0 RDI: 0000000000000005
[  274.534160][  T930] RBP: 00007ffcf13648f0 R08: 00007f241ba19980 R09: 000000000000000c
[  274.534398][  T930] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  274.534634][  T930] R13: 0000000037423980 R14: 0000000000000000 R15: 0000000000000003
| [  274.881846][  T962] ------------[ cut here ]------------
| [  274.882086][  T962] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/962
| [  274.883198][  T962] Modules linked in: netdevsim
| [  274.883784][  T962] Tainted: [W]=WARN
[  274.883947][  T962] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  274.884187][  T962] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  274.884445][  T962] 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
[  274.885037][  T962] RSP: 0018:ffa0000001d07310 EFLAGS: 00010286
[  274.885276][  T962] RAX: 00000000ffffffa6 RBX: ff1100000d43bb40 RCX: 1ff40000003a0e28
[  274.885562][  T962] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d43bbf0
[  274.885845][  T962] RBP: ff1100000c4aa000 R08: 1fe2200001a8777f R09: ff1100000c210bd0
[  274.886117][  T962] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  274.886402][  T962] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  274.886688][  T962] FS:  00007fe3267c2840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[  274.887004][  T962] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.887242][  T962] CR2: 00007fe326d77004 CR3: 000000000d603002 CR4: 0000000000771ef0
[  274.887527][  T962] PKRU: 55555554
[  274.887697][  T962] Call Trace:
[  274.887859][  T962]  <TASK>
[  274.887985][  T962]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  274.888226][  T962]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  274.888477][  T962]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  274.888693][  T962]  ? netdev_run_todo (net/core/dev.c:11703)
[  274.888894][  T962]  ? 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)
[  274.889098][  T962]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  274.889298][  T962]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  274.889509][  T962]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.889716][  T962]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  274.889918][  T962] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  274.890121][  T962]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.890320][  T962] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  274.890571][  T962] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  274.890822][  T962] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  274.891066][  T962]  devlink_reload (net/devlink/dev.c:462)
[  274.891269][  T962]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  274.891477][  T962]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  274.891728][  T962]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  274.891932][  T962]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  274.892169][  T962]  ? __nla_validate_parse (lib/nlattr.c:635)
[  274.892385][  T962]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.892587][  T962]  ? __nla_parse (lib/nlattr.c:732)
[  274.892794][  T962]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  274.892997][  T962]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  274.893237][  T962]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.893451][  T962]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  274.893651][  T962]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  274.893864][  T962]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  274.894064][  T962]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  274.894299][  T962]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  274.894549][  T962]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  274.894752][  T962]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.894953][  T962]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  274.895155][  T962]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.895373][  T962]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  274.895574][  T962]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  274.895782][  T962]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  274.895981][  T962]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  274.896184][  T962]  ? 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))
[  274.896400][  T962]  ? 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))
[  274.896611][  T962]  genl_rcv (net/netlink/genetlink.c:1218)
[  274.896784][  T962]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  274.896986][  T962]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  274.897190][  T962]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.897405][  T962]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  274.897608][  T962]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  274.897817][  T962]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.898018][  T962]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.898221][  T962]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  274.898435][  T962]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  274.898648][  T962]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  274.898855][  T962]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  274.899093][  T962]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  274.899291][  T962]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  274.899503][  T962]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  274.899712][  T962]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  274.899911][  T962]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  274.900112][  T962]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  274.900363][  T962] RIP: 0033:0x7fe3269fc08e
[  274.900568][  T962] 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
[  274.901162][  T962] RSP: 002b:00007ffd8e85d300 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  274.901456][  T962] RAX: ffffffffffffffda RBX: 000000001b165980 RCX: 00007fe3269fc08e
[  274.901738][  T962] RDX: 0000000000000038 RSI: 000000001b165ba0 RDI: 0000000000000005
[  274.902011][  T962] RBP: 00007ffd8e85d310 R08: 00007fe326cb0980 R09: 000000000000000c
[  274.902283][  T962] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  274.902569][  T962] R13: 000000001b165980 R14: 0000000000000000 R15: 0000000000000003
| [  274.944108][  T962] ------------[ cut here ]------------
| [  274.944369][  T962] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/962
| [  274.944741][  T962] Modules linked in: netdevsim
| [  274.945309][  T962] Tainted: [W]=WARN
[  274.945556][  T962] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  274.945874][  T962] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  274.946189][  T962] 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
[  274.946875][  T962] RSP: 0018:ffa0000001d07268 EFLAGS: 00010286
[  274.947181][  T962] RAX: 00000000ffffffa6 RBX: ff1100000d6c6f40 RCX: 1ff40000003a0e13
[  274.947534][  T962] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d6c6ff0
[  274.947880][  T962] RBP: ff1100000c2ba000 R08: 1fe2200001ad8dff R09: ff1100000c210bd0
[  274.948217][  T962] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  274.948571][  T962] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c2ba000
[  274.948920][  T962] FS:  00007fe3267c2840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[  274.949298][  T962] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.949613][  T962] CR2: 00007fe326d77004 CR3: 000000000d603002 CR4: 0000000000771ef0
[  274.949969][  T962] PKRU: 55555554
[  274.950193][  T962] Call Trace:
[  274.950401][  T962]  <TASK>
[  274.950527][  T962]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  274.950743][  T962]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  274.950911][  T962]  register_netdevice (net/core/dev.c:11488)
[  274.951115][  T962]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  274.951366][  T962]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  274.951576][  T962] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  274.951833][  T962] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  274.952040][  T962] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  274.952281][  T962]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  274.952496][  T962]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  274.952745][  T962]  ? 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))
[  274.952948][  T962]  ? static_obj (kernel/locking/lockdep.c:858)
[  274.953117][  T962]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  274.953322][  T962]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  274.953578][  T962] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  274.953827][  T962]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  274.954065][  T962]  devlink_reload (net/devlink/dev.c:475)
[  274.954267][  T962]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  274.954479][  T962]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  274.954732][  T962]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  274.954934][  T962]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  274.955170][  T962]  ? __nla_validate_parse (lib/nlattr.c:635)
[  274.955385][  T962]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.955588][  T962]  ? __nla_parse (lib/nlattr.c:732)
[  274.955797][  T962]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  274.956004][  T962]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  274.956247][  T962]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.956463][  T962]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  274.956664][  T962]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  274.956880][  T962]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  274.957082][  T962]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  274.957320][  T962]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  274.957574][  T962]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  274.957781][  T962]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.957982][  T962]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  274.958182][  T962]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.958401][  T962]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  274.958604][  T962]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  274.958813][  T962]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  274.959019][  T962]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  274.959226][  T962]  ? 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))
[  274.959440][  T962]  ? 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))
[  274.959643][  T962]  genl_rcv (net/netlink/genetlink.c:1218)
[  274.959815][  T962]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  274.960017][  T962]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  274.960217][  T962]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.960438][  T962]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  274.960641][  T962]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  274.960852][  T962]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.961054][  T962]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.961257][  T962]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  274.961474][  T962]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  274.961695][  T962]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  274.961897][  T962]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  274.962141][  T962]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  274.962342][  T962]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  274.962556][  T962]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  274.962764][  T962]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  274.962968][  T962]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  274.963170][  T962]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  274.963421][  T962] RIP: 0033:0x7fe3269fc08e
[  274.963631][  T962] 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
[  274.964232][  T962] RSP: 002b:00007ffd8e85d300 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  274.964523][  T962] RAX: ffffffffffffffda RBX: 000000001b165980 RCX: 00007fe3269fc08e
[  274.964813][  T962] RDX: 0000000000000038 RSI: 000000001b165ba0 RDI: 0000000000000005
[  274.965088][  T962] RBP: 00007ffd8e85d310 R08: 00007fe326cb0980 R09: 000000000000000c
[  274.965375][  T962] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  274.965650][  T962] R13: 000000001b165980 R14: 0000000000000000 R15: 0000000000000003
| [  275.280832][  T980] ------------[ cut here ]------------
| [  275.281065][  T980] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/980
| [  275.281439][  T980] Modules linked in: netdevsim
| [  275.282005][  T980] Tainted: [W]=WARN
[  275.282166][  T980] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  275.282416][  T980] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  275.282662][  T980] 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
[  275.283250][  T980] RSP: 0018:ffa0000001d57310 EFLAGS: 00010286
[  275.283502][  T980] RAX: 00000000ffffffa6 RBX: ff1100000d43bcc0 RCX: 1ff40000003aae28
[  275.283787][  T980] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d43bd70
[  275.284060][  T980] RBP: ff1100000c2ba000 R08: 1fe2200001a877af R09: ff1100000c3c2ed0
[  275.284333][  T980] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  275.284619][  T980] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  275.284904][  T980] FS:  00007efd284a6840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[  275.285218][  T980] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  275.285471][  T980] CR2: 00007efd28a5b004 CR3: 000000000c37e001 CR4: 0000000000771ef0
[  275.285754][  T980] PKRU: 55555554
[  275.285917][  T980] Call Trace:
[  275.286078][  T980]  <TASK>
[  275.286204][  T980]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  275.286462][  T980]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  275.286706][  T980]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  275.286913][  T980]  ? netdev_run_todo (net/core/dev.c:11703)
[  275.287114][  T980]  ? 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)
[  275.287319][  T980]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  275.287531][  T980]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  275.287738][  T980]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  275.287938][  T980]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  275.288141][  T980] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  275.288343][  T980]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  275.288562][  T980] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  275.288808][  T980] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  275.289047][  T980] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  275.289317][  T980]  devlink_reload (net/devlink/dev.c:462)
[  275.289528][  T980]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  275.289740][  T980]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  275.289981][  T980]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  275.290180][  T980]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  275.290425][  T980]  ? __nla_validate_parse (lib/nlattr.c:635)
[  275.290628][  T980]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  275.290831][  T980]  ? __nla_parse (lib/nlattr.c:732)
[  275.291032][  T980]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  275.291232][  T980]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  275.291482][  T980]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  275.291688][  T980]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  275.291888][  T980]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  275.292090][  T980]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  275.292289][  T980]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  275.292536][  T980]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  275.292780][  T980]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  275.292979][  T980]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  275.293177][  T980]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  275.293388][  T980]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  275.293591][  T980]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  275.293796][  T980]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  275.293996][  T980]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  275.294195][  T980]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  275.294410][  T980]  ? 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))
[  275.294610][  T980]  ? 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))
[  275.294822][  T980]  genl_rcv (net/netlink/genetlink.c:1218)
[  275.294987][  T980]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  275.295186][  T980]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  275.295396][  T980]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  275.295599][  T980]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  275.295811][  T980]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  275.296015][  T980]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  275.296216][  T980]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  275.296433][  T980]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  275.296635][  T980]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  275.296859][  T980]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  275.297061][  T980]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  275.297296][  T980]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  275.297511][  T980]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  275.297716][  T980]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  275.297915][  T980]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  275.298113][  T980]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  275.298314][  T980]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  275.298561][  T980] RIP: 0033:0x7efd286e008e
[  275.298776][  T980] 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
[  275.299369][  T980] RSP: 002b:00007ffffcb01ad0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  275.299645][  T980] RAX: ffffffffffffffda RBX: 00000000278f7980 RCX: 00007efd286e008e
[  275.299923][  T980] RDX: 0000000000000038 RSI: 00000000278f7ba0 RDI: 0000000000000005
[  275.300198][  T980] RBP: 00007ffffcb01ae0 R08: 00007efd28994980 R09: 000000000000000c
[  275.300489][  T980] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  275.300769][  T980] R13: 00000000278f7980 R14: 0000000000000000 R15: 0000000000000003
| [  275.348883][  T980] ------------[ cut here ]------------
| [  275.349124][  T980] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/980
| [  275.349569][  T980] Modules linked in: netdevsim
| [  275.350271][  T980] Tainted: [W]=WARN
[  275.350508][  T980] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  275.350821][  T980] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  275.351133][  T980] 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
[  275.351807][  T980] RSP: 0018:ffa0000001d57268 EFLAGS: 00010286
[  275.352111][  T980] RAX: 00000000ffffffa6 RBX: ff11000009597cc0 RCX: 1ff40000003aae13
[  275.352465][  T980] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009597d70
[  275.352808][  T980] RBP: ff1100000c84a000 R08: 1fe22000012b2faf R09: ff1100000c3c2ed0
[  275.353144][  T980] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  275.353494][  T980] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c84a000
[  275.353834][  T980] FS:  00007efd284a6840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[  275.354147][  T980] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  275.354400][  T980] CR2: 00007efd28a5b004 CR3: 000000000c37e001 CR4: 0000000000771ef0
[  275.354683][  T980] PKRU: 55555554
[  275.354845][  T980] Call Trace:
[  275.355006][  T980]  <TASK>
[  275.355135][  T980]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  275.355339][  T980]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  275.355517][  T980]  register_netdevice (net/core/dev.c:11488)
[  275.355729][  T980]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  275.355966][  T980]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  275.356171][  T980] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  275.356429][  T980] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  275.356637][  T980] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  275.356881][  T980]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  275.357082][  T980]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  275.357321][  T980]  ? 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))
[  275.357535][  T980]  ? static_obj (kernel/locking/lockdep.c:858)
[  275.357704][  T980]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  275.357909][  T980]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  275.358155][  T980] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  275.358405][  T980]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  275.358641][  T980]  devlink_reload (net/devlink/dev.c:475)
[  275.358851][  T980]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  275.359052][  T980]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  275.359293][  T980]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  275.359508][  T980]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  275.359752][  T980]  ? __nla_validate_parse (lib/nlattr.c:635)
[  275.359955][  T980]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  275.360155][  T980]  ? __nla_parse (lib/nlattr.c:732)
[  275.360371][  T980]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  275.360573][  T980]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  275.360823][  T980]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  275.361027][  T980]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  275.361227][  T980]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  275.361441][  T980]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  275.361644][  T980]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  275.361886][  T980]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  275.362123][  T980]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  275.362324][  T980]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  275.362536][  T980]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  275.362743][  T980]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  275.362948][  T980]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  275.363149][  T980]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  275.363360][  T980]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  275.363561][  T980]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  275.363775][  T980]  ? 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))
[  275.363981][  T980]  ? 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))
[  275.364185][  T980]  genl_rcv (net/netlink/genetlink.c:1218)
[  275.364361][  T980]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  275.364563][  T980]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  275.364772][  T980]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  275.364976][  T980]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  275.365178][  T980]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  275.365393][  T980]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  275.365598][  T980]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  275.365809][  T980]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  275.366013][  T980]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  275.366226][  T980]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  275.366440][  T980]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  275.366694][  T980]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  275.366895][  T980]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  275.367099][  T980]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  275.367298][  T980]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  275.367510][  T980]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  275.367718][  T980]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  275.367955][  T980] RIP: 0033:0x7efd286e008e
[  275.368161][  T980] 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
[  275.368766][  T980] RSP: 002b:00007ffffcb01ad0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  275.369045][  T980] RAX: ffffffffffffffda RBX: 00000000278f7980 RCX: 00007efd286e008e
[  275.369318][  T980] RDX: 0000000000000038 RSI: 00000000278f7ba0 RDI: 0000000000000005
[  275.369607][  T980] RBP: 00007ffffcb01ae0 R08: 00007efd28994980 R09: 000000000000000c
[  275.369889][  T980] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  275.370177][  T980] R13: 00000000278f7980 R14: 0000000000000000 R15: 0000000000000003
| [  276.442955][ T1072] ------------[ cut here ]------------
| [  276.443157][ T1072] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/1072
| [  276.443478][ T1072] Modules linked in: netdevsim
| [  276.443954][ T1072] Tainted: [W]=WARN
[  276.444072][ T1072] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  276.444266][ T1072] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  276.444472][ T1072] 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
[  276.445021][ T1072] RSP: 0018:ffa0000001fd7310 EFLAGS: 00010286
[  276.445218][ T1072] RAX: 00000000ffffffa6 RBX: ff1100000d43a340 RCX: 1ff40000003fae28
[  276.445452][ T1072] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d43a3f0
[  276.445685][ T1072] RBP: ff1100000c84a000 R08: 1fe2200001a8747f R09: ff1100000c2c2ed0
[  276.445912][ T1072] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  276.446138][ T1072] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  276.446382][ T1072] FS:  00007f6fe22ba840(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[  276.446656][ T1072] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  276.446856][ T1072] CR2: 00007f6fe286f004 CR3: 000000000bd48003 CR4: 0000000000771ef0
[  276.447088][ T1072] PKRU: 55555554
[  276.447203][ T1072] Call Trace:
[  276.447319][ T1072]  <TASK>
[  276.447404][ T1072]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  276.447601][ T1072]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  276.447796][ T1072]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  276.447955][ T1072]  ? netdev_run_todo (net/core/dev.c:11703)
[  276.448109][ T1072]  ? 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)
[  276.448267][ T1072]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  276.448424][ T1072]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  276.448579][ T1072]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.448738][ T1072]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  276.448892][ T1072] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  276.449046][ T1072]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.449200][ T1072] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  276.449618][ T1072] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  276.449817][ T1072] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  276.450009][ T1072]  devlink_reload (net/devlink/dev.c:462)
[  276.450164][ T1072]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  276.450315][ T1072]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  276.450513][ T1072]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  276.450665][ T1072]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  276.450860][ T1072]  ? __nla_validate_parse (lib/nlattr.c:635)
[  276.451015][ T1072]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.451168][ T1072]  ? __nla_parse (lib/nlattr.c:732)
[  276.451323][ T1072]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  276.451479][ T1072]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  276.451675][ T1072]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.451829][ T1072]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  276.451984][ T1072]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  276.452140][ T1072]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  276.452293][ T1072]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  276.452487][ T1072]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  276.452680][ T1072]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  276.452835][ T1072]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.452987][ T1072]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  276.453140][ T1072]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.453296][ T1072]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  276.453454][ T1072]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  276.453605][ T1072]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  276.453761][ T1072]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  276.453917][ T1072]  ? 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))
[  276.454070][ T1072]  ? 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))
[  276.454224][ T1072]  genl_rcv (net/netlink/genetlink.c:1218)
[  276.454339][ T1072]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  276.454497][ T1072]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  276.454649][ T1072]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.454809][ T1072]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  276.454961][ T1072]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  276.455114][ T1072]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.455268][ T1072]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.455426][ T1072]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  276.455580][ T1072]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  276.455749][ T1072]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  276.455901][ T1072]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  276.456089][ T1072]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  276.456246][ T1072]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  276.456402][ T1072]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  276.456554][ T1072]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  276.456711][ T1072]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  276.456863][ T1072]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  276.457051][ T1072] RIP: 0033:0x7f6fe24f408e
[  276.457213][ T1072] 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
[  276.457764][ T1072] RSP: 002b:00007ffe9345dba0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  276.457995][ T1072] RAX: ffffffffffffffda RBX: 0000000003384980 RCX: 00007f6fe24f408e
[  276.458224][ T1072] RDX: 0000000000000038 RSI: 0000000003384ba0 RDI: 0000000000000005
[  276.458456][ T1072] RBP: 00007ffe9345dbb0 R08: 00007f6fe27a8980 R09: 000000000000000c
[  276.458687][ T1072] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  276.458914][ T1072] R13: 0000000003384980 R14: 0000000000000000 R15: 0000000000000003
| [  276.495805][ T1072] ------------[ cut here ]------------
| [  276.495989][ T1072] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/1072
| [  276.496300][ T1072] Modules linked in: netdevsim
| [  276.496907][ T1072] Tainted: [W]=WARN
[  276.497022][ T1072] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  276.497213][ T1072] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  276.497481][ T1072] 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
[  276.498089][ T1072] RSP: 0018:ffa0000001fd7268 EFLAGS: 00010286
[  276.498282][ T1072] RAX: 00000000ffffffa6 RBX: ff11000009f0fb40 RCX: 1ff40000003fae13
[  276.498574][ T1072] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009f0fbf0
[  276.498874][ T1072] RBP: ff1100000be4a000 R08: 1fe22000013e1f7f R09: ff1100000c2c2ed0
[  276.499099][ T1072] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  276.499324][ T1072] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000be4a000
[  276.499615][ T1072] FS:  00007f6fe22ba840(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[  276.499887][ T1072] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  276.500078][ T1072] CR2: 00007f6fe286f004 CR3: 000000000bd48003 CR4: 0000000000771ef0
[  276.500304][ T1072] PKRU: 55555554
[  276.500471][ T1072] Call Trace:
[  276.500585][ T1072]  <TASK>
[  276.500664][ T1072]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  276.500822][ T1072]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  276.500938][ T1072]  register_netdevice (net/core/dev.c:11488)
[  276.501091][ T1072]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  276.501277][ T1072]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  276.501437][ T1072] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  276.501633][ T1072] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  276.501789][ T1072] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  276.501976][ T1072]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  276.502130][ T1072]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  276.502317][ T1072]  ? 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))
[  276.502474][ T1072]  ? static_obj (kernel/locking/lockdep.c:858)
[  276.502588][ T1072]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  276.502745][ T1072]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  276.502934][ T1072] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  276.503122][ T1072]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  276.503310][ T1072]  devlink_reload (net/devlink/dev.c:475)
[  276.503467][ T1072]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  276.503619][ T1072]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  276.503816][ T1072]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  276.503965][ T1072]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  276.504151][ T1072]  ? __nla_validate_parse (lib/nlattr.c:635)
[  276.504303][ T1072]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.504459][ T1072]  ? __nla_parse (lib/nlattr.c:732)
[  276.504611][ T1072]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  276.504769][ T1072]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  276.504960][ T1072]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.505110][ T1072]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  276.505259][ T1072]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  276.505418][ T1072]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  276.505568][ T1072]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  276.505759][ T1072]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  276.505945][ T1072]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  276.506094][ T1072]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.506243][ T1072]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  276.506401][ T1072]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.506554][ T1072]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  276.506710][ T1072]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  276.506859][ T1072]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  276.507010][ T1072]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  276.507162][ T1072]  ? 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))
[  276.507312][ T1072]  ? 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))
[  276.507469][ T1072]  genl_rcv (net/netlink/genetlink.c:1218)
[  276.507583][ T1072]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  276.507738][ T1072]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  276.507889][ T1072]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.508041][ T1072]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  276.508190][ T1072]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  276.508341][ T1072]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.508498][ T1072]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.508651][ T1072]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  276.508808][ T1072]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  276.508970][ T1072]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  276.509120][ T1072]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  276.509308][ T1072]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  276.509463][ T1072]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  276.509611][ T1072]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  276.509762][ T1072]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  276.509913][ T1072]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  276.510064][ T1072]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  276.510250][ T1072] RIP: 0033:0x7f6fe24f408e
[  276.510408][ T1072] 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
[  276.510944][ T1072] RSP: 002b:00007ffe9345dba0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  276.511172][ T1072] RAX: ffffffffffffffda RBX: 0000000003384980 RCX: 00007f6fe24f408e
[  276.511400][ T1072] RDX: 0000000000000038 RSI: 0000000003384ba0 RDI: 0000000000000005
[  276.511622][ T1072] RBP: 00007ffe9345dbb0 R08: 00007f6fe27a8980 R09: 000000000000000c
[  276.511850][ T1072] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  276.512075][ T1072] R13: 0000000003384980 R14: 0000000000000000 R15: 0000000000000003
| [  276.758594][ T1085] ------------[ cut here ]------------
| [  276.758785][ T1085] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/1085
| [  276.759077][ T1085] Modules linked in: netdevsim
| [  276.759525][ T1085] Tainted: [W]=WARN
[  276.759633][ T1085] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  276.759817][ T1085] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  276.760001][ T1085] 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
[  276.760508][ T1085] RSP: 0018:ffa0000002047310 EFLAGS: 00010286
[  276.760690][ T1085] RAX: 00000000ffffffa6 RBX: ff1100000555ef40 RCX: 1ff4000000408e28
[  276.760903][ T1085] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000555eff0
[  276.761117][ T1085] RBP: ff1100000be4a000 R08: 1fe2200000aabdff R09: ff1100000caf51d0
[  276.761331][ T1085] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  276.761548][ T1085] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  276.761768][ T1085] FS:  00007f17811ed840(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[  276.762019][ T1085] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  276.762201][ T1085] CR2: 00007f17817a2004 CR3: 000000000beb7003 CR4: 0000000000771ef0
[  276.762424][ T1085] PKRU: 55555554
[  276.762531][ T1085] Call Trace:
[  276.762639][ T1085]  <TASK>
[  276.762717][ T1085]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  276.762900][ T1085]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  276.763079][ T1085]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  276.763225][ T1085]  ? netdev_run_todo (net/core/dev.c:11703)
[  276.764057][ T1085]  ? 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)
[  276.764205][ T1085]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  276.764353][ T1085]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  276.764495][ T1085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.764639][ T1085]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  276.764790][ T1085] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  276.764932][ T1085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.765077][ T1085] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  276.765254][ T1085] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  276.765435][ T1085] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  276.765613][ T1085]  devlink_reload (net/devlink/dev.c:462)
[  276.765759][ T1085]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  276.765902][ T1085]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  276.766082][ T1085]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  276.766224][ T1085]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  276.766403][ T1085]  ? __nla_validate_parse (lib/nlattr.c:635)
[  276.766546][ T1085]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.766691][ T1085]  ? __nla_parse (lib/nlattr.c:732)
[  276.766835][ T1085]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  276.766980][ T1085]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  276.767160][ T1085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.767301][ T1085]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  276.767450][ T1085]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  276.767594][ T1085]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  276.767742][ T1085]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  276.767918][ T1085]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  276.768095][ T1085]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  276.768235][ T1085]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.768381][ T1085]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  276.768522][ T1085]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.768668][ T1085]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  276.768817][ T1085]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  276.768958][ T1085]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  276.769100][ T1085]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  276.769248][ T1085]  ? 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))
[  276.769394][ T1085]  ? 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))
[  276.769537][ T1085]  genl_rcv (net/netlink/genetlink.c:1218)
[  276.769643][ T1085]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  276.769791][ T1085]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  276.769933][ T1085]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.770076][ T1085]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  276.770218][ T1085]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  276.770365][ T1085]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.770509][ T1085]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.770651][ T1085]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  276.770800][ T1085]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  276.770953][ T1085]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  276.771096][ T1085]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  276.771278][ T1085]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  276.771425][ T1085]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  276.771567][ T1085]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  276.771715][ T1085]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  276.771855][ T1085]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  276.771999][ T1085]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  276.772176][ T1085] RIP: 0033:0x7f178142708e
[  276.772327][ T1085] 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
[  276.772840][ T1085] RSP: 002b:00007fffd54d70e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  276.773055][ T1085] RAX: ffffffffffffffda RBX: 0000000020f51980 RCX: 00007f178142708e
[  276.773268][ T1085] RDX: 0000000000000038 RSI: 0000000020f51ba0 RDI: 0000000000000005
[  276.773486][ T1085] RBP: 00007fffd54d70f0 R08: 00007f17816db980 R09: 000000000000000c
[  276.773703][ T1085] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  276.773914][ T1085] R13: 0000000020f51980 R14: 0000000000000000 R15: 0000000000000003
| [  276.832025][ T1085] ------------[ cut here ]------------
| [  276.832240][ T1085] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/1085
| [  276.832594][ T1085] Modules linked in: netdevsim
| [  276.833147][ T1085] Tainted: [W]=WARN
[  276.833302][ T1085] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  276.833543][ T1085] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  276.833792][ T1085] 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
[  276.834363][ T1085] RSP: 0018:ffa0000002047268 EFLAGS: 00010286
[  276.834592][ T1085] RAX: 00000000ffffffa6 RBX: ff1100000a711b40 RCX: 1ff4000000408e13
[  276.834865][ T1085] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a711bf0
[  276.835125][ T1085] RBP: ff1100000c4a2000 R08: 1fe22000014e237f R09: ff1100000caf51d0
[  276.835397][ T1085] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  276.835659][ T1085] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c4a2000
[  276.835936][ T1085] FS:  00007f17811ed840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[  276.836239][ T1085] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  276.836480][ T1085] CR2: 00007f3c2ad99574 CR3: 000000000beb7003 CR4: 0000000000771ef0
[  276.836754][ T1085] PKRU: 55555554
[  276.836908][ T1085] Call Trace:
[  276.837062][ T1085]  <TASK>
[  276.837182][ T1085]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  276.837389][ T1085]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  276.837545][ T1085]  register_netdevice (net/core/dev.c:11488)
[  276.837745][ T1085]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  276.837970][ T1085]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  276.838166][ T1085] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  276.838406][ T1085] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  276.838602][ T1085] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  276.838839][ T1085]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  276.839033][ T1085]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  276.839260][ T1085]  ? 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))
[  276.839464][ T1085]  ? static_obj (kernel/locking/lockdep.c:858)
[  276.839619][ T1085]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  276.839825][ T1085]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  276.840057][ T1085] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  276.840284][ T1085]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  276.840522][ T1085]  devlink_reload (net/devlink/dev.c:475)
[  276.840721][ T1085]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  276.840911][ T1085]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  276.841138][ T1085]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  276.841328][ T1085]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  276.841566][ T1085]  ? __nla_validate_parse (lib/nlattr.c:635)
[  276.841770][ T1085]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.841964][ T1085]  ? __nla_parse (lib/nlattr.c:732)
[  276.842157][ T1085]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  276.842362][ T1085]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  276.842590][ T1085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.842790][ T1085]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  276.842984][ T1085]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  276.843179][ T1085]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  276.843382][ T1085]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  276.843605][ T1085]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  276.843843][ T1085]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  276.844031][ T1085]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.844223][ T1085]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  276.844426][ T1085]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.844623][ T1085]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  276.844827][ T1085]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  276.845017][ T1085]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  276.845206][ T1085]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  276.845413][ T1085]  ? 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))
[  276.845607][ T1085]  ? 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))
[  276.845809][ T1085]  genl_rcv (net/netlink/genetlink.c:1218)
[  276.845966][ T1085]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  276.846157][ T1085]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  276.846360][ T1085]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.846554][ T1085]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  276.846755][ T1085]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  276.846945][ T1085]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.847141][ T1085]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.847333][ T1085]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  276.847536][ T1085]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  276.847748][ T1085]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  276.847941][ T1085]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  276.848169][ T1085]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  276.848371][ T1085]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  276.848562][ T1085]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  276.848755][ T1085]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  276.848944][ T1085]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  276.849136][ T1085]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  276.849372][ T1085] RIP: 0033:0x7f178142708e
[  276.849568][ T1085] 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
[  276.850132][ T1085] RSP: 002b:00007fffd54d70e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  276.850407][ T1085] RAX: ffffffffffffffda RBX: 0000000020f51980 RCX: 00007f178142708e
[  276.850669][ T1085] RDX: 0000000000000038 RSI: 0000000020f51ba0 RDI: 0000000000000005
[  276.850938][ T1085] RBP: 00007fffd54d70f0 R08: 00007f17816db980 R09: 000000000000000c
[  276.851204][ T1085] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  276.851480][ T1085] R13: 0000000020f51980 R14: 0000000000000000 R15: 0000000000000003
| [  277.650392][ T1150] ------------[ cut here ]------------
| [  277.650635][ T1150] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/1150
| [  277.651001][ T1150] Modules linked in: netdevsim
| [  277.652169][ T1150] Tainted: [W]=WARN
[  277.652333][ T1150] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  277.652590][ T1150] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  277.652841][ T1150] 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
[  277.653433][ T1150] RSP: 0018:ffa00000022b7310 EFLAGS: 00010286
[  277.653681][ T1150] RAX: 00000000ffffffa6 RBX: ff11000005714340 RCX: 1ff4000000456e28
[  277.653957][ T1150] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000057143f0
[  277.654231][ T1150] RBP: ff1100000c4a2000 R08: 1fe2200000ae287f R09: ff1100000caf51d0
[  277.654540][ T1150] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  277.654827][ T1150] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  277.655105][ T1150] FS:  00007fb386cc3840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[  277.655434][ T1150] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  277.655680][ T1150] CR2: 00007fb387278004 CR3: 000000000c6f9004 CR4: 0000000000771ef0
[  277.655956][ T1150] PKRU: 55555554
[  277.656116][ T1150] Call Trace:
[  277.656276][ T1150]  <TASK>
[  277.656415][ T1150]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  277.656658][ T1150]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  277.656900][ T1150]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  277.657103][ T1150]  ? netdev_run_todo (net/core/dev.c:11703)
[  277.657303][ T1150]  ? 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)
[  277.657520][ T1150]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  277.657726][ T1150]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  277.657928][ T1150]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  277.658129][ T1150]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  277.658331][ T1150] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  277.658545][ T1150]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  277.658758][ T1150] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  277.659001][ T1150] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  277.659240][ T1150] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  277.659491][ T1150]  devlink_reload (net/devlink/dev.c:462)
[  277.659699][ T1150]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  277.659901][ T1150]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  277.660141][ T1150]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  277.660342][ T1150]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  277.660592][ T1150]  ? __nla_validate_parse (lib/nlattr.c:635)
[  277.660798][ T1150]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  277.660998][ T1150]  ? __nla_parse (lib/nlattr.c:732)
[  277.661199][ T1150]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  277.661415][ T1150]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  277.661653][ T1150]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  277.661858][ T1150]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  277.662057][ T1150]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  277.662259][ T1150]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  277.662474][ T1150]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  277.662714][ T1150]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  277.662950][ T1150]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  277.663146][ T1150]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  277.663345][ T1150]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  277.663559][ T1150]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  277.663765][ T1150]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  277.663966][ T1150]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  277.664162][ T1150]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  277.664374][ T1150]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  277.664575][ T1150]  ? 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))
[  277.664784][ T1150]  ? 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))
[  277.664988][ T1150]  genl_rcv (net/netlink/genetlink.c:1218)
[  277.665154][ T1150]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  277.665367][ T1150]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  277.665566][ T1150]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  277.665778][ T1150]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  277.665983][ T1150]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  277.666183][ T1150]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  277.666397][ T1150]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  277.666598][ T1150]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  277.666812][ T1150]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  277.667026][ T1150]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  277.667224][ T1150]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  277.667474][ T1150]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  277.667672][ T1150]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  277.667879][ T1150]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  277.668081][ T1150]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  277.668279][ T1150]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  277.668491][ T1150]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  277.668737][ T1150] RIP: 0033:0x7fb386efd08e
[  277.668943][ T1150] 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
[  277.669541][ T1150] RSP: 002b:00007fff34aac7a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  277.669824][ T1150] RAX: ffffffffffffffda RBX: 00000000357a5980 RCX: 00007fb386efd08e
[  277.670098][ T1150] RDX: 0000000000000038 RSI: 00000000357a5ba0 RDI: 0000000000000005
[  277.670382][ T1150] RBP: 00007fff34aac7b0 R08: 00007fb3871b1980 R09: 000000000000000c
[  277.670654][ T1150] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  277.670937][ T1150] R13: 00000000357a5980 R14: 0000000000000000 R15: 0000000000000003
| [  277.713336][ T1150] ------------[ cut here ]------------
| [  277.713542][ T1150] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/1150
| [  277.713862][ T1150] Modules linked in: netdevsim
| [  277.714335][ T1150] Tainted: [W]=WARN
[  277.714458][ T1150] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  277.714768][ T1150] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  277.714971][ T1150] 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
[  277.715632][ T1150] RSP: 0018:ffa00000022b7268 EFLAGS: 00010286
[  277.715837][ T1150] RAX: 00000000ffffffa6 RBX: ff11000009f0fcc0 RCX: 1ff4000000456e13
[  277.716177][ T1150] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009f0fd70
[  277.716722][ T1150] RBP: ff110000094a2000 R08: 1fe22000013e1faf R09: ff1100000caf51d0
[  277.716960][ T1150] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  277.717189][ T1150] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000094a2000
[  277.717603][ T1150] FS:  00007fb386cc3840(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[  277.718053][ T1150] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  277.718249][ T1150] CR2: 00007fb3871b2498 CR3: 000000000c6f9002 CR4: 0000000000771ef0
[  277.718549][ T1150] PKRU: 55555554
[  277.718666][ T1150] Call Trace:
[  277.718787][ T1150]  <TASK>
[  277.718867][ T1150]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  277.719023][ T1150]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  277.719141][ T1150]  register_netdevice (net/core/dev.c:11488)
[  277.719297][ T1150]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  277.719553][ T1150]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  277.719714][ T1150] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  277.719912][ T1150] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  277.720068][ T1150] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  277.720260][ T1150]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  277.720479][ T1150]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  277.720672][ T1150]  ? 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))
[  277.720832][ T1150]  ? static_obj (kernel/locking/lockdep.c:858)
[  277.720949][ T1150]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  277.721105][ T1150]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  277.721300][ T1150] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  277.721558][ T1150]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  277.721756][ T1150]  devlink_reload (net/devlink/dev.c:475)
[  277.721912][ T1150]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  277.722067][ T1150]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  277.722263][ T1150]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  277.722481][ T1150]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  277.722671][ T1150]  ? __nla_validate_parse (lib/nlattr.c:635)
[  277.722831][ T1150]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  277.722987][ T1150]  ? __nla_parse (lib/nlattr.c:732)
[  277.723142][ T1150]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  277.723469][ T1150]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  277.723668][ T1150]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  277.723827][ T1150]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  277.723982][ T1150]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  277.724139][ T1150]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  277.724293][ T1150]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  277.724653][ T1150]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  277.724851][ T1150]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  277.725006][ T1150]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  277.725160][ T1150]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  277.725314][ T1150]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  277.725532][ T1150]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  277.725690][ T1150]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  277.725842][ T1150]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  277.725995][ T1150]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  277.726257][ T1150]  ? 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))
[  277.726475][ T1150]  ? 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))
[  277.726633][ T1150]  genl_rcv (net/netlink/genetlink.c:1218)
[  277.726752][ T1150]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  277.726908][ T1150]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  277.727063][ T1150]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  277.727220][ T1150]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  277.727440][ T1150]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  277.727595][ T1150]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  277.727761][ T1150]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  277.728022][ T1150]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  277.728178][ T1150]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  277.728343][ T1150]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  277.728560][ T1150]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  277.728863][ T1150]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  277.729016][ T1150]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  277.729168][ T1150]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  277.729323][ T1150]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  277.729644][ T1150]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  277.729801][ T1150]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  277.729994][ T1150] RIP: 0033:0x7fb386efd08e
[  277.730157][ T1150] 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
[  277.730788][ T1150] RSP: 002b:00007fff34aac7a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  277.731021][ T1150] RAX: ffffffffffffffda RBX: 00000000357a5980 RCX: 00007fb386efd08e
[  277.731251][ T1150] RDX: 0000000000000038 RSI: 00000000357a5ba0 RDI: 0000000000000005
[  277.731492][ T1150] RBP: 00007fff34aac7b0 R08: 00007fb3871b1980 R09: 000000000000000c
[  277.731834][ T1150] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  277.732172][ T1150] R13: 00000000357a5980 R14: 0000000000000000 R15: 0000000000000003
| [  278.103764][ T1178] ------------[ cut here ]------------
| [  278.103967][ T1178] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/1178
| [  278.104285][ T1178] Modules linked in: netdevsim
| [  278.104772][ T1178] Tainted: [W]=WARN
[  278.104890][ T1178] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.105084][ T1178] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.105284][ T1178] 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
[  278.105890][ T1178] RSP: 0018:ffa0000002377310 EFLAGS: 00010286
[  278.106084][ T1178] RAX: 00000000ffffffa6 RBX: ff11000016eb21c0 RCX: 1ff400000046ee28
[  278.106312][ T1178] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000016eb2270
[  278.106548][ T1178] RBP: ff110000094a2000 R08: 1fe2200002dd644f R09: ff1100000cadaed0
[  278.106784][ T1178] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  278.107016][ T1178] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  278.107248][ T1178] FS:  00007fd1b2693840(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[  278.107520][ T1178] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.107720][ T1178] CR2: 00007fd1b2c48004 CR3: 000000000f208002 CR4: 0000000000771ef0
[  278.107954][ T1178] PKRU: 55555554
[  278.108068][ T1178] Call Trace:
[  278.108182][ T1178]  <TASK>
[  278.108261][ T1178]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  278.108463][ T1178]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.108651][ T1178]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  278.108815][ T1178]  ? netdev_run_todo (net/core/dev.c:11703)
[  278.108968][ T1178]  ? 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)
[  278.109124][ T1178]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  278.109276][ T1178]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  278.109436][ T1178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.109590][ T1178]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  278.109750][ T1178] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  278.109902][ T1178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.110057][ T1178] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  278.110248][ T1178] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  278.110447][ T1178] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  278.110637][ T1178]  devlink_reload (net/devlink/dev.c:462)
[  278.110798][ T1178]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  278.110951][ T1178]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  278.111142][ T1178]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  278.111292][ T1178]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  278.111489][ T1178]  ? __nla_validate_parse (lib/nlattr.c:635)
[  278.111642][ T1178]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  278.111799][ T1178]  ? __nla_parse (lib/nlattr.c:732)
[  278.111954][ T1178]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  278.112108][ T1178]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  278.112301][ T1178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.112457][ T1178]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  278.112613][ T1178]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  278.112771][ T1178]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  278.112924][ T1178]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  278.113114][ T1178]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  278.113304][ T1178]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  278.113463][ T1178]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  278.113615][ T1178]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  278.113777][ T1178]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  278.113931][ T1178]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  278.114083][ T1178]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  278.114235][ T1178]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  278.114393][ T1178]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  278.114549][ T1178]  ? 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))
[  278.114706][ T1178]  ? 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))
[  278.114860][ T1178]  genl_rcv (net/netlink/genetlink.c:1218)
[  278.114974][ T1178]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  278.115129][ T1178]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  278.115281][ T1178]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  278.115440][ T1178]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  278.115592][ T1178]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  278.115750][ T1178]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  278.115903][ T1178]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  278.116060][ T1178]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  278.116213][ T1178]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  278.116380][ T1178]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  278.116531][ T1178]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.116727][ T1178]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  278.116880][ T1178]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  278.117032][ T1178]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  278.117186][ T1178]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  278.117338][ T1178]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  278.117497][ T1178]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  278.117692][ T1178] RIP: 0033:0x7fd1b28cd08e
[  278.117852][ T1178] 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
[  278.118402][ T1178] RSP: 002b:00007ffd1fa01570 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  278.118632][ T1178] RAX: ffffffffffffffda RBX: 0000000005d21980 RCX: 00007fd1b28cd08e
[  278.118867][ T1178] RDX: 0000000000000038 RSI: 0000000005d21ba0 RDI: 0000000000000005
[  278.119095][ T1178] RBP: 00007ffd1fa01580 R08: 00007fd1b2b81980 R09: 000000000000000c
[  278.119323][ T1178] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  278.119554][ T1178] R13: 0000000005d21980 R14: 0000000000000000 R15: 0000000000000003
| [  278.245151][ T1180] ------------[ cut here ]------------
| [  278.245521][ T1180] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/1180
| [  278.245917][ T1180] Modules linked in: netdevsim
| [  278.246504][ T1180] Tainted: [W]=WARN
[  278.246666][ T1180] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.246916][ T1180] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.247162][ T1180] 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
[  278.247760][ T1180] RSP: 0018:ffa0000002387268 EFLAGS: 00010286
[  278.247999][ T1180] RAX: 00000000ffffffa6 RBX: ff11000016eb3e40 RCX: 1ff4000000470e13
[  278.248271][ T1180] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000016eb3ef0
[  278.248565][ T1180] RBP: ff1100000c62a000 R08: 1fe2200002dd67df R09: ff1100000f272ed0
[  278.248841][ T1180] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  278.249111][ T1180] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c62a000
[  278.249398][ T1180] FS:  00007f9df89f1840(0000) GS:ff110000adc85000(0000) knlGS:0000000000000000
[  278.249717][ T1180] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.249951][ T1180] CR2: 00007f9df8fa6004 CR3: 000000000c297006 CR4: 0000000000771ef0
[  278.250222][ T1180] PKRU: 55555554
[  278.250393][ T1180] Call Trace:
[  278.250556][ T1180]  <TASK>
[  278.250689][ T1180]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  278.250913][ T1180]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  278.251075][ T1180]  register_netdevice (net/core/dev.c:11488)
[  278.251275][ T1180]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  278.251590][ T1180]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  278.251864][ T1180] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  278.252171][ T1180] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  278.252404][ T1180] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  278.252639][ T1180]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  278.252841][ T1180]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  278.253077][ T1180]  ? 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))
[  278.253274][ T1180]  ? static_obj (kernel/locking/lockdep.c:858)
[  278.253445][ T1180]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  278.253658][ T1180]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  278.253908][ T1180] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  278.254145][ T1180]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  278.254392][ T1180]  devlink_reload (net/devlink/dev.c:475)
[  278.254591][ T1180]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  278.254797][ T1180]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  278.255035][ T1180]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  278.255235][ T1180]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  278.255476][ T1180]  ? __nla_validate_parse (lib/nlattr.c:635)
[  278.255683][ T1180]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  278.255881][ T1180]  ? __nla_parse (lib/nlattr.c:732)
[  278.256082][ T1180]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  278.256281][ T1180]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  278.256533][ T1180]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.256739][ T1180]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  278.256935][ T1180]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  278.257135][ T1180]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  278.257332][ T1180]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  278.257576][ T1180]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  278.257818][ T1180]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  278.258017][ T1180]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  278.258213][ T1180]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  278.258424][ T1180]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  278.258624][ T1180]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  278.258830][ T1180]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  278.259027][ T1180]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  278.259226][ T1180]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  278.259444][ T1180]  ? 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))
[  278.259641][ T1180]  ? 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))
[  278.259848][ T1180]  genl_rcv (net/netlink/genetlink.c:1218)
[  278.260007][ T1180]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  278.260205][ T1180]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  278.260416][ T1180]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  278.260615][ T1180]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  278.260844][ T1180]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  278.261051][ T1180]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  278.261255][ T1180]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  278.261471][ T1180]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  278.261674][ T1180]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  278.261897][ T1180]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  278.262099][ T1180]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.262337][ T1180]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  278.262553][ T1180]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  278.262763][ T1180]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  278.262963][ T1180]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  278.263162][ T1180]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  278.263376][ T1180]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  278.263614][ T1180] RIP: 0033:0x7f9df8c2b08e
[  278.263828][ T1180] 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
[  278.264434][ T1180] RSP: 002b:00007ffc2d6b0e70 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  278.264717][ T1180] RAX: ffffffffffffffda RBX: 000000000d2b7980 RCX: 00007f9df8c2b08e
[  278.264991][ T1180] RDX: 0000000000000038 RSI: 000000000d2b7ba0 RDI: 0000000000000005
[  278.265268][ T1180] RBP: 00007ffc2d6b0e80 R08: 00007f9df8edf980 R09: 000000000000000c
[  278.265551][ T1180] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  278.265832][ T1180] R13: 000000000d2b7980 R14: 0000000000000000 R15: 0000000000000003
| [  278.353123][   T12] ------------[ cut here ]------------
| [  278.353456][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [  278.353804][   T12] Modules linked in: netdevsim
| [  278.354471][   T12] Tainted: [W]=WARN
[  278.354592][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.354779][   T12] Workqueue: netns cleanup_net
[  278.354942][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.355144][   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
[  278.355753][   T12] RSP: 0018:ffa00000000c7610 EFLAGS: 00010286
[  278.355937][   T12] RAX: 00000000ffffffa6 RBX: ff1100000c72c640 RCX: 1ff4000000018e88
[  278.356207][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c72c6f0
[  278.356468][   T12] RBP: ff1100000c62a000 R08: 1fe22000018e58df R09: ff11000001b05220
[  278.356691][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[  278.356908][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  278.357194][   T12] FS:  0000000000000000(0000) GS:ff110000adb85000(0000) knlGS:0000000000000000
[  278.357459][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.357643][   T12] CR2: 00007fde60daaf98 CR3: 0000000013739002 CR4: 0000000000771ef0
[  278.357867][   T12] PKRU: 55555554
[  278.357978][   T12] Call Trace:
[  278.358088][   T12]  <TASK>
[  278.358164][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  278.358392][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.358575][   T12]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  278.358740][   T12]  ? netdev_run_todo (net/core/dev.c:11703)
[  278.358887][   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)
[  278.359035][   T12]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  278.359179][   T12]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  278.359324][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.359476][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  278.359624][   T12] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  278.359778][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.359925][   T12] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  278.360107][   T12] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  278.360290][   T12] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  278.360481][   T12]  devlink_reload (net/devlink/dev.c:462)
[  278.360630][   T12]  ? xas_find_conflict (lib/xarray.c:207 lib/xarray.c:1568)
[  278.360782][   T12]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  278.360928][   T12]  ? __devlinks_xa_find_get (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/devlink/core.c:364 (discriminator 2))
[  278.361076][   T12]  devlink_pernet_pre_exit (net/devlink/core.c:558)
[  278.361221][   T12]  ? devlink_free (./include/linux/list.h:404 (discriminator 3))
[  278.361373][   T12]  ops_undo_list (net/core/net_namespace.c:161 net/core/net_namespace.c:234)
[  278.361522][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[  278.361667][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  278.361825][   T12]  cleanup_net (net/core/net_namespace.c:702)
[  278.361973][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  278.362118][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  278.362266][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  278.362417][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.362564][   T12]  process_one_work (kernel/workqueue.c:3314)
[  278.362720][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  278.362864][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.363018][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  278.363167][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  278.363311][   T12]  kthread (kernel/kthread.c:436)
[  278.363428][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.363615][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.363772][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  278.363924][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  278.364110][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  278.364259][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.364412][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  278.412109][   T12] ------------[ cut here ]------------
| [  278.412301][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [  278.412599][   T12] Modules linked in: netdevsim
| [  278.413090][   T12] Tainted: [W]=WARN
[  278.413201][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.413390][   T12] Workqueue: netns cleanup_net
[  278.413545][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.413741][   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
[  278.414260][   T12] RSP: 0018:ffa00000000c7568 EFLAGS: 00010286
[  278.414454][   T12] RAX: 00000000ffffffa6 RBX: ff11000005715240 RCX: 1ff4000000018e73
[  278.414672][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000057152f0
[  278.414894][   T12] RBP: ff1100000c88a000 R08: 1fe2200000ae2a5f R09: ff11000001b05220
[  278.415108][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[  278.415325][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c88a000
[  278.415561][   T12] FS:  0000000000000000(0000) GS:ff110000adb85000(0000) knlGS:0000000000000000
[  278.415820][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.416001][   T12] CR2: 00007fde60daaf98 CR3: 0000000013739002 CR4: 0000000000771ef0
[  278.416218][   T12] PKRU: 55555554
[  278.416326][   T12] Call Trace:
[  278.416439][   T12]  <TASK>
[  278.416516][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  278.416667][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  278.416784][   T12]  register_netdevice (net/core/dev.c:11488)
[  278.416933][   T12]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  278.417111][   T12]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  278.417261][   T12] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  278.417455][   T12] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  278.417603][   T12] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  278.417792][   T12]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  278.417942][   T12]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  278.418123][   T12]  ? 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))
[  278.418269][   T12]  ? static_obj (kernel/locking/lockdep.c:858)
[  278.418386][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  278.418535][   T12]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  278.418726][   T12] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  278.418909][   T12]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  278.419092][   T12]  devlink_reload (net/devlink/dev.c:475)
[  278.419237][   T12]  ? xas_find_conflict (lib/xarray.c:207 lib/xarray.c:1568)
[  278.419390][   T12]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  278.419538][   T12]  ? __devlinks_xa_find_get (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/devlink/core.c:364 (discriminator 2))
[  278.419692][   T12]  devlink_pernet_pre_exit (net/devlink/core.c:558)
[  278.419837][   T12]  ? devlink_free (./include/linux/list.h:404 (discriminator 3))
[  278.419985][   T12]  ops_undo_list (net/core/net_namespace.c:161 net/core/net_namespace.c:234)
[  278.420132][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[  278.420275][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  278.420430][   T12]  cleanup_net (net/core/net_namespace.c:702)
[  278.420576][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  278.420726][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  278.420873][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  278.421019][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.421167][   T12]  process_one_work (kernel/workqueue.c:3314)
[  278.421316][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  278.421468][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.421620][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  278.421778][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  278.421923][   T12]  kthread (kernel/kthread.c:436)
[  278.422031][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.422212][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.422365][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  278.422513][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  278.422702][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  278.422849][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.422994][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  278.425120][   T12] ------------[ cut here ]------------
| [  278.425328][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [  278.425717][   T12] Modules linked in: netdevsim
| [  278.426187][   T12] Tainted: [W]=WARN
[  278.426287][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.426500][   T12] Workqueue: netns cleanup_net
[  278.426639][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.426818][   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
[  278.427282][   T12] RSP: 0018:ffa00000000c76f8 EFLAGS: 00010286
[  278.427514][   T12] RAX: 00000000ffffffa6 RBX: ff11000005715cc0 RCX: 1ff4000000018ea5
[  278.427721][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000005715d70
[  278.427917][   T12] RBP: ff1100000c7c1000 R08: 1fe2200000ae2baf R09: ff11000001b051f8
[  278.428113][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[  278.428310][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e8
[  278.428562][   T12] FS:  0000000000000000(0000) GS:ff110000adb85000(0000) knlGS:0000000000000000
[  278.428800][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.428965][   T12] CR2: 00007fde60daaf98 CR3: 0000000013739002 CR4: 0000000000771ef0
[  278.429163][   T12] PKRU: 55555554
[  278.429264][   T12] Call Trace:
[  278.429388][   T12]  <TASK>
[  278.429459][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  278.429598][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  278.429705][   T12]  netif_close_many (net/core/dev.c:1804)
[  278.429837][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.429968][   T12]  ? default_device_exit_batch (net/core/dev.c:13075)
[  278.430100][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[  278.430230][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.430368][   T12]  netif_close_many_and_unlock (net/core/dev.c:12330)
[  278.430501][   T12]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[  278.430664][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[  278.430832][   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)
[  278.430963][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.431096][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[  278.431230][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.431397][   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)
[  278.431527][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.431657][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  278.431824][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  278.431955][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  278.432089][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  278.432220][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[  278.432356][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[  278.432489][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  278.432619][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.432753][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[  278.432884][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  278.433016][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[  278.433148][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  278.433281][   T12]  cleanup_net (net/core/net_namespace.c:702)
[  278.433418][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  278.433547][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  278.433680][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  278.433811][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.433943][   T12]  process_one_work (kernel/workqueue.c:3314)
[  278.434077][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  278.434208][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.434344][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  278.434486][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  278.434617][   T12]  kthread (kernel/kthread.c:436)
[  278.434719][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.434882][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.435011][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  278.435145][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  278.435309][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  278.435447][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.435578][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  278.439784][   T12] ------------[ cut here ]------------
| [  278.439955][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [  278.440194][   T12] Modules linked in: netdevsim
| [  278.440691][   T12] Tainted: [W]=WARN
[  278.440785][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.440940][   T12] Workqueue: netns cleanup_net
[  278.441069][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.441264][   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
[  278.441710][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[  278.441866][   T12] RAX: 00000000ffffffa6 RBX: ff11000009c60dc0 RCX: 1ff4000000018ed5
[  278.442051][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009c60e70
[  278.442235][   T12] RBP: ff1100000c7c1000 R08: 1fe220000138c1cf R09: ff11000001b051d0
[  278.442424][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[  278.442610][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  278.442845][   T12] FS:  0000000000000000(0000) GS:ff110000adb85000(0000) knlGS:0000000000000000
[  278.443063][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.443218][   T12] CR2: 00007fde60daaf98 CR3: 0000000013739002 CR4: 0000000000771ef0
[  278.443408][   T12] PKRU: 55555554
[  278.443500][   T12] Call Trace:
[  278.443593][   T12]  <TASK>
[  278.443657][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  278.443820][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.443972][   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)
[  278.444095][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.444218][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  278.444377][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  278.444505][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  278.444629][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[  278.444767][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[  278.444892][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  278.445014][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.445137][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[  278.445263][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  278.445392][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[  278.445514][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  278.445642][   T12]  cleanup_net (net/core/net_namespace.c:702)
[  278.445771][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  278.445894][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  278.446019][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  278.446141][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.446265][   T12]  process_one_work (kernel/workqueue.c:3314)
[  278.446396][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  278.446519][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.446648][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  278.446779][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  278.446903][   T12]  kthread (kernel/kthread.c:436)
[  278.446997][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.447148][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.447272][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  278.447403][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  278.447556][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  278.447685][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.447810][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  278.451072][   T12] ------------[ cut here ]------------
| [  278.451203][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [  278.451452][   T12] Modules linked in: netdevsim
| [  278.451862][   T12] Tainted: [W]=WARN
[  278.451954][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.452108][   T12] Workqueue: netns cleanup_net
[  278.452237][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.452400][   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
[  278.452843][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[  278.452998][   T12] RAX: 00000000ffffffa6 RBX: ff11000009c613c0 RCX: 1ff4000000018ed5
[  278.453182][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009c61470
[  278.453460][   T12] RBP: ff11000002429000 R08: 1fe220000138c28f R09: ff11000001b051d0
[  278.453645][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[  278.453834][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  278.454021][   T12] FS:  0000000000000000(0000) GS:ff110000adb85000(0000) knlGS:0000000000000000
[  278.454235][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.454448][   T12] CR2: 00007fde60daaf98 CR3: 0000000013739002 CR4: 0000000000771ef0
[  278.454634][   T12] PKRU: 55555554
[  278.454732][   T12] Call Trace:
[  278.454824][   T12]  <TASK>
[  278.454891][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  278.455047][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.455199][   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)
[  278.455322][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.455449][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  278.455602][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  278.455731][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  278.455857][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[  278.455982][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[  278.456106][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  278.456230][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.456360][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[  278.456485][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  278.456610][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[  278.456739][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  278.456871][   T12]  cleanup_net (net/core/net_namespace.c:702)
[  278.456993][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  278.457115][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  278.457240][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  278.457367][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.457490][   T12]  process_one_work (kernel/workqueue.c:3314)
[  278.457618][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  278.457746][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.457879][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  278.458007][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  278.458128][   T12]  kthread (kernel/kthread.c:436)
[  278.458220][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.458378][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.458501][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  278.458628][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  278.458785][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  278.458907][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.459030][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  278.461872][  T166] ------------[ cut here ]------------
| [  278.462080][  T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: nexthop.sh/166
| [  278.462447][  T166] Modules linked in: netdevsim
| [  278.462995][  T166] Tainted: [W]=WARN
[  278.463110][  T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.463303][  T166] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.463509][  T166] 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
[  278.464062][  T166] RSP: 0018:ffa0000000857728 EFLAGS: 00010286
[  278.464257][  T166] RAX: 00000000ffffffa6 RBX: ff11000009c619c0 RCX: 1ff400000010aeab
[  278.464498][  T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000009c61a70
[  278.464734][  T166] RBP: ff1100000c88a000 R08: 1fe220000138c34f R09: ff1100000c0eaf48
[  278.464964][  T166] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  278.465195][  T166] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  278.465484][  T166] FS:  00007fde60b99b80(0000) GS:ff110000add05000(0000) knlGS:0000000000000000
[  278.465766][  T166] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.465960][  T166] CR2: 000055c8235c0130 CR3: 000000000bfa2001 CR4: 0000000000771ef0
[  278.466197][  T166] PKRU: 55555554
[  278.466312][  T166] Call Trace:
[  278.466433][  T166]  <TASK>
[  278.466513][  T166]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  278.466713][  T166]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.466907][  T166]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[  278.467061][  T166]  ? netdev_run_todo (net/core/dev.c:11703)
[  278.467214][  T166]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[  278.467376][  T166]  ? 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)
[  278.467532][  T166]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  278.467691][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.467846][  T166]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  278.468002][  T166] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  278.468160][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.468314][  T166] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  278.468519][  T166] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  278.468717][  T166] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[  278.468875][  T166]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[  278.469071][  T166]  bus_remove_device (drivers/base/bus.c:657)
[  278.469226][  T166]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[  278.469388][  T166]  ? device_remove_file (drivers/base/core.c:3073)
[  278.469545][  T166]  device_del (drivers/base/core.c:3895)
[  278.469664][  T166]  ? __device_link_del (./include/linux/kobject.h:89)
[  278.469824][  T166]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[  278.469979][  T166]  device_unregister (drivers/base/core.c:3936)
[  278.470132][  T166] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[  278.470327][  T166]  ? 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))
[  278.470488][  T166]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[  278.470686][  T166]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[  278.470841][  T166]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[  278.470996][  T166]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[  278.471149][  T166]  ? kernfs_ops (fs/kernfs/file.c:128)
[  278.471264][  T166]  new_sync_write (fs/read_write.c:595)
[  278.471427][  T166]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  278.471580][  T166]  ? new_sync_read (./include/linux/ioprio.h:41)
[  278.471743][  T166]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.471897][  T166]  ? ksys_write (fs/read_write.c:740)
[  278.472055][  T166]  vfs_write (fs/read_write.c:688)
[  278.472173][  T166]  ksys_write (fs/read_write.c:740)
[  278.472290][  T166]  ? __ia32_sys_read (fs/read_write.c:724)
[  278.472451][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.472604][  T166]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.472765][  T166]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  278.472918][  T166]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  278.473072][  T166]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  278.473229][  T166]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  278.473427][  T166] RIP: 0033:0x7fde60c0b08e
[  278.473587][  T166] 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
[  278.474136][  T166] RSP: 002b:00007ffe9d4fd000 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  278.474378][  T166] RAX: ffffffffffffffda RBX: 00007fde60d8d580 RCX: 00007fde60c0b08e
[  278.474607][  T166] RDX: 0000000000000005 RSI: 000055c8235c0130 RDI: 0000000000000001
[  278.474837][  T166] RBP: 00007ffe9d4fd010 R08: 0000000000000000 R09: 0000000000000000
[  278.475068][  T166] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005


Finger prints:
rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init
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_notify_flags:rtnl_configure_link:rtnl_newlink_create