======================================
| xx__-> [    8.787114][  T165] ------------[ cut here ]------------
| [    8.787366][  T165] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: nexthop.sh/165
| [    8.787763][  T165] Modules linked in: netdevsim
| [    8.788366][  T165] Tainted: [W]=WARN
[    8.788498][  T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.788763][  T165] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.788987][  T165] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 a8 cc f0 ff b9 a6 ff ff
All code
========
   0:	89 fa                	mov    %edi,%edx
   2:	48 c1 ea 03          	shr    $0x3,%rdx
   6:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
   a:	48 89 f8             	mov    %rdi,%rax
   d:	83 e0 07             	and    $0x7,%eax
  10:	83 c0 03             	add    $0x3,%eax
  13:	38 d0                	cmp    %dl,%al
  15:	7c 04                	jl     0x1b
  17:	84 d2                	test   %dl,%dl
  19:	75 79                	jne    0x94
  1b:	48 8b 44 24 58       	mov    0x58(%rsp),%rax
  20:	44 8b 48 08          	mov    0x8(%rax),%r9d
  24:	e9 42 ff ff ff       	jmp    0xffffffffffffff6b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 a8 cc f0 ff       	call   0xfffffffffff0cce4
  3c:	b9                   	.byte 0xb9
  3d:	a6                   	cmpsb  (%rdi),(%rsi)
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	ba 02 00 00 00       	mov    $0x2,%edx
   8:	48 89 de             	mov    %rbx,%rsi
   b:	31 ff                	xor    %edi,%edi
   d:	e8 a8 cc f0 ff       	call   0xfffffffffff0ccba
  12:	b9                   	.byte 0xb9
  13:	a6                   	cmpsb  (%rdi),(%rsi)
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[    8.789609][  T165] RSP: 0018:ffa00000008374f8 EFLAGS: 00010286
[    8.789831][  T165] RAX: 00000000ffffffa6 RBX: ff11000012dd04c0 RCX: 1ff4000000106e65
[    8.790139][  T165] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000012dd0570
[    8.790397][  T165] RBP: ff11000009542000 R08: 1fe22000025ba0af R09: ff11000013428c48
[    8.790659][  T165] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    8.790915][  T165] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009542000
[    8.791179][  T165] FS:  00007f63ec2afb80(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[    8.791477][  T165] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.791695][  T165] CR2: 0000557aaf665138 CR3: 000000000558a004 CR4: 0000000000771ef0
[    8.791936][  T165] PKRU: 55555554
[    8.792057][  T165] Call Trace:
[    8.792185][  T165]  <TASK>
[    8.792270][  T165]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.792434][  T165]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.792556][  T165]  register_netdevice (net/core/dev.c:11488)
[    8.792727][  T165]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.792925][  T165]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    8.793093][  T165] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    8.793306][  T165] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.793467][  T165] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.793674][  T165]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    8.793835][  T165]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    8.794037][  T165]  ? 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))
[    8.794207][  T165]  ? static_obj (kernel/locking/lockdep.c:858)
[    8.794328][  T165]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.794493][  T165]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    8.794710][  T165] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim
[    8.794885][  T165]  ? driver_sysfs_add (drivers/base/dd.c:495)
[    8.795045][  T165]  call_driver_probe (drivers/base/dd.c:629)
[    8.795210][  T165]  really_probe (drivers/base/dd.c:709)
[    8.795369][  T165]  ? driver_probe_device (drivers/base/dd.c:135)
[    8.795528][  T165]  __driver_probe_device (drivers/base/dd.c:871)
[    8.795694][  T165]  driver_probe_device (drivers/base/dd.c:901)
[    8.795854][  T165]  __device_attach_driver (drivers/base/dd.c:1029)
[    8.796017][  T165]  bus_for_each_drv (drivers/base/bus.c:500)
[    8.796182][  T165]  ? bus_find_device_reverse (drivers/base/bus.c:442)
[    8.796347][  T165]  __device_attach (drivers/base/dd.c:1101)
[    8.796506][  T165]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.796671][  T165]  ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1))
[    8.796870][  T165]  ? 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)
[    8.797032][  T165]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[    8.797201][  T165]  device_initial_probe (drivers/base/dd.c:1156)
[    8.797360][  T165]  bus_probe_device (drivers/base/bus.c:613)
[    8.797521][  T165]  device_add (drivers/base/core.c:3706)
[    8.797689][  T165]  ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3))
[    8.797892][  T165]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[    8.798055][  T165]  ? pm_runtime_init (drivers/base/power/runtime.c:1859)
[    8.798223][  T165] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim
[    8.798422][  T165]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    8.798586][  T165]  ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim
[    8.798784][  T165]  ? 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))
[    8.798945][  T165]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[    8.799106][  T165]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[    8.799272][  T165]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[    8.799434][  T165]  ? kernfs_ops (fs/kernfs/file.c:128)
[    8.799556][  T165]  new_sync_write (fs/read_write.c:595)
[    8.799723][  T165]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.799882][  T165]  ? new_sync_read (./include/linux/ioprio.h:41)
[    8.800044][  T165]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    8.800206][  T165]  ? ksys_write (fs/read_write.c:740)
[    8.800368][  T165]  vfs_write (fs/read_write.c:688)
[    8.800490][  T165]  ksys_write (fs/read_write.c:740)
[    8.800616][  T165]  ? __ia32_sys_read (fs/read_write.c:724)
[    8.800774][  T165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.800932][  T165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.801091][  T165]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.801257][  T165]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.801416][  T165]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.801582][  T165]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.801779][  T165] RIP: 0033:0x7f63ec32108e
[    8.801946][  T165] 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
[    8.802647][  T165] RSP: 002b:00007ffe65755f90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[    8.802889][  T165] RAX: ffffffffffffffda RBX: 00007f63ec4a3580 RCX: 00007f63ec32108e
[    8.803132][  T165] RDX: 0000000000000007 RSI: 0000557aaf664130 RDI: 0000000000000001
[    8.803368][  T165] RBP: 00007ffe65755fa0 R08: 0000000000000000 R09: 0000000000000000
[    8.803614][  T165] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000007
[    8.803851][  T165] R13: 0000000000000007 R14: 0000557aaf664130 R15: 0000000000000000
| [    8.851449][  T186] ------------[ cut here ]------------
| [    8.851723][  T186] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/186
| [    8.851964][  T186] Modules linked in: netdevsim
| [    8.852456][  T186] Tainted: [W]=WARN
[    8.852560][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.852739][  T186] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.852927][  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
[    8.853395][  T186] RSP: 0018:ffa00000005d7aa8 EFLAGS: 00010286
[    8.853570][  T186] RAX: 00000000ffffffa6 RBX: ff11000008da7e40 RCX: 1ff40000000baf1b
[    8.853782][  T186] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008da7ef0
[    8.853977][  T186] RBP: ff110000059ac000 R08: 1fe22000011b4fdf R09: ff11000012225180
[    8.854177][  T186] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    8.854370][  T186] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000059ac000
[    8.854569][  T186] FS:  00007f73b5995840(0000) GS:ff1100009d605000(0000) knlGS:0000000000000000
[    8.854811][  T186] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.854977][  T186] CR2: 0000000000479648 CR3: 00000000135e0001 CR4: 0000000000771ef0
[    8.855177][  T186] PKRU: 55555554
[    8.855276][  T186] Call Trace:
[    8.855374][  T186]  <TASK>
[    8.855443][  T186]  ? ip6_route_dev_notify (net/ipv6/route.c:6484)
[    8.855582][  T186]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.855715][  T186]  ? notifier_call_chain (kernel/notifier.c:85)
[    8.855847][  T186]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.855948][  T186]  register_netdevice (net/core/dev.c:11488)
[    8.856081][  T186]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.856250][  T186]  register_netdev (net/core/dev.c:11552)
[    8.856380][  T186]  loopback_net_init (drivers/net/loopback.c:218)
[    8.856512][  T186]  ops_init (net/core/net_namespace.c:137)
[    8.856622][  T186]  setup_net (net/core/net_namespace.c:446)
[    8.856722][  T186]  ? unregister_pernet_device (net/core/net_namespace.c:1503)
[    8.856853][  T186]  ? lockdep_init_map_type (kernel/locking/lockdep.c:4973)
[    8.856987][  T186]  ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185)
[    8.857130][  T186]  copy_net_ns (net/core/net_namespace.c:579)
[    8.857268][  T186]  create_new_namespaces (kernel/nsproxy.c:132)
[    8.857413][  T186]  unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4))
[    8.857560][  T186]  ksys_unshare (kernel/fork.c:3243)
[    8.857716][  T186]  ? walk_process_tree (kernel/fork.c:3036 (discriminator 19))
[    8.857852][  T186]  ? __ia32_sys_open (fs/open.c:1374)
[    8.858004][  T186]  __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315)
[    8.858152][  T186]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.858297][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.858437][  T186]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.858586][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.858735][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.858914][  T186] RIP: 0033:0x7f73b5c57bcb
[    8.859064][  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
[    8.859542][  T186] RSP: 002b:00007ffc807c0ff8 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
[    8.859756][  T186] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f73b5c57bcb
[    8.859958][  T186] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000
[    8.860162][  T186] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[    8.860363][  T186] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc807c3220
[    8.860559][  T186] R13: 0000000000000001 R14: 00007f73b59956f8 R15: 00007ffc807c3846
| [    8.904052][  T187] ------------[ cut here ]------------
| [    8.904362][  T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/187
| [    8.904810][  T187] Modules linked in: netdevsim
| [    8.905444][  T187] Tainted: [W]=WARN
[    8.905676][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.905928][  T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.906192][  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
[    8.906813][  T187] RSP: 0018:ffa0000000687310 EFLAGS: 00010286
[    8.907066][  T187] RAX: 00000000ffffffa6 RBX: ff1100000aaddcc0 RCX: 1ff40000000d0e28
[    8.907365][  T187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000aaddd70
[    8.907664][  T187] RBP: ff11000009542000 R08: 1fe220000155bbaf R09: ff11000012220bd0
[    8.907951][  T187] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.908247][  T187] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    8.908531][  T187] FS:  00007fd304dee840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[    8.908859][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.909105][  T187] CR2: 00007fd304fefc20 CR3: 0000000015077005 CR4: 0000000000771ef0
[    8.909400][  T187] PKRU: 55555554
[    8.909565][  T187] Call Trace:
[    8.909753][  T187]  <TASK>
[    8.909887][  T187]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    8.910150][  T187]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    8.910395][  T187]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[    8.910623][  T187]  ? netdev_run_todo (net/core/dev.c:11703)
[    8.910826][  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)
[    8.911041][  T187]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    8.911263][  T187]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[    8.911472][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.911699][  T187]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    8.911899][  T187] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    8.912101][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.912314][  T187] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    8.912559][  T187] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    8.912825][  T187] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    8.913071][  T187]  devlink_reload (net/devlink/dev.c:462)
[    8.913289][  T187]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[    8.913495][  T187]  ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1196 fs/file.c:1210)
[    8.913687][  T187]  ? ns_capable (./include/linux/security.h:701 kernel/capability.c:342 kernel/capability.c:363)
[    8.913856][  T187]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    8.914065][  T187]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    8.914320][  T187]  ? __nla_validate_parse (lib/nlattr.c:635)
[    8.914534][  T187]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    8.914753][  T187]  ? __nla_parse (lib/nlattr.c:732)
[    8.914958][  T187]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    8.915171][  T187]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[    8.915415][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.915633][  T187]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    8.915859][  T187]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[    8.916071][  T187]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[    8.916296][  T187]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[    8.916545][  T187]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.916808][  T187]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[    8.917025][  T187]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    8.917243][  T187]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[    8.917451][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.917679][  T187]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[    8.917881][  T187]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.918083][  T187]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[    8.918291][  T187]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.918504][  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))
[    8.918748][  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))
[    8.918962][  T187]  genl_rcv (net/netlink/genetlink.c:1218)
[    8.919137][  T187]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.919344][  T187]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.919642][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.919858][  T187]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.920064][  T187]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.920283][  T187]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.920504][  T187]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.920731][  T187]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.920940][  T187]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.921144][  T187]  ? build_open_flags (fs/open.c:1212)
[    8.921356][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.921563][  T187]  ? __ia32_sys_open (fs/open.c:1374)
[    8.921783][  T187]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.921992][  T187]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.922250][  T187]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.922458][  T187]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.922708][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    8.923147][  T187]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    8.923355][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    8.923567][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.924041][  T187] RIP: 0033:0x7fd30502808e
[    8.924250][  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
[    8.924846][  T187] RSP: 002b:00007ffeed49fee0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    8.925140][  T187] RAX: ffffffffffffffda RBX: 000000003ce99980 RCX: 00007fd30502808e
[    8.925433][  T187] RDX: 0000000000000040 RSI: 000000003ce99ba0 RDI: 0000000000000005
[    8.925727][  T187] RBP: 00007ffeed49fef0 R08: 00007fd3052dc980 R09: 000000000000000c
[    8.926010][  T187] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    8.926301][  T187] R13: 000000003ce99980 R14: 0000000000000000 R15: 0000000000000001
| [    8.980571][  T187] ------------[ cut here ]------------
| [    8.980807][  T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/187
| [    8.981176][  T187] Modules linked in: netdevsim
| [    8.981769][  T187] Tainted: [W]=WARN
[    8.981933][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.982184][  T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    8.982434][  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
[    8.983036][  T187] RSP: 0018:ffa0000000687268 EFLAGS: 00010286
[    8.983287][  T187] RAX: 00000000ffffffa6 RBX: ff11000012f287c0 RCX: 1ff40000000d0e13
[    8.983572][  T187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000012f28870
[    8.983917][  T187] RBP: ff11000012d8a000 R08: 1fe22000025e510f R09: ff11000012220bd0
[    8.984207][  T187] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    8.984496][  T187] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012d8a000
[    8.984828][  T187] FS:  00007fd304dee840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[    8.985151][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.985407][  T187] CR2: 00007fd304fefc20 CR3: 0000000015077005 CR4: 0000000000771ef0
[    8.985682][  T187] PKRU: 55555554
[    8.985834][  T187] Call Trace:
[    8.985990][  T187]  <TASK>
[    8.986110][  T187]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    8.986307][  T187]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    8.986463][  T187]  register_netdevice (net/core/dev.c:11488)
[    8.986668][  T187]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    8.986889][  T187]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    8.987084][  T187] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    8.987383][  T187] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    8.987670][  T187] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    8.987991][  T187]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    8.988270][  T187]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    8.988605][  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))
[    8.988872][  T187]  ? static_obj (kernel/locking/lockdep.c:858)
[    8.989076][  T187]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    8.989289][  T187]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    8.989530][  T187] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[    8.989785][  T187]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[    8.990034][  T187]  devlink_reload (net/devlink/dev.c:475)
[    8.990246][  T187]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[    8.990456][  T187]  ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1196 fs/file.c:1210)
[    8.990634][  T187]  ? ns_capable (./include/linux/security.h:701 kernel/capability.c:342 kernel/capability.c:363)
[    8.990812][  T187]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    8.991014][  T187]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    8.991259][  T187]  ? __nla_validate_parse (lib/nlattr.c:635)
[    8.991471][  T187]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    8.991690][  T187]  ? __nla_parse (lib/nlattr.c:732)
[    8.991908][  T187]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    8.992102][  T187]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[    8.992358][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    8.992599][  T187]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    8.992882][  T187]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[    8.993139][  T187]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[    8.993367][  T187]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[    8.993654][  T187]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    8.993930][  T187]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[    8.994159][  T187]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    8.994383][  T187]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[    8.994625][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.994858][  T187]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[    8.995088][  T187]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    8.995322][  T187]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[    8.995553][  T187]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    8.995813][  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))
[    8.996051][  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))
[    8.996297][  T187]  genl_rcv (net/netlink/genetlink.c:1218)
[    8.996480][  T187]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    8.996700][  T187]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    8.996892][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    8.997093][  T187]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    8.997305][  T187]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    8.997509][  T187]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.997729][  T187]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    8.997936][  T187]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    8.998166][  T187]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    8.998376][  T187]  ? build_open_flags (fs/open.c:1212)
[    8.998599][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[    8.998811][  T187]  ? __ia32_sys_open (fs/open.c:1374)
[    8.999018][  T187]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    8.999234][  T187]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.999479][  T187]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    8.999707][  T187]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    8.999909][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.000118][  T187]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.000332][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.000542][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.000790][  T187] RIP: 0033:0x7fd30502808e
[    9.001008][  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
[    9.001628][  T187] RSP: 002b:00007ffeed49fee0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    9.001921][  T187] RAX: ffffffffffffffda RBX: 000000003ce99980 RCX: 00007fd30502808e
[    9.002218][  T187] RDX: 0000000000000040 RSI: 000000003ce99ba0 RDI: 0000000000000005
[    9.002504][  T187] RBP: 00007ffeed49fef0 R08: 00007fd3052dc980 R09: 000000000000000c
[    9.002794][  T187] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    9.003099][  T187] R13: 000000003ce99980 R14: 0000000000000000 R15: 0000000000000001
| [    9.047140][  T190] ------------[ cut here ]------------
| [    9.047345][  T190] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/190
| [    9.047574][  T190] Modules linked in: netdevsim
| [    9.048114][  T190] Tainted: [W]=WARN
[    9.048254][  T190] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.048463][  T190] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.048677][  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
[    9.049163][  T190] RSP: 0018:ffa00000006c71b0 EFLAGS: 00010286
[    9.049335][  T190] RAX: 00000000ffffffa6 RBX: ff11000012f299c0 RCX: 1ff40000000d8dfc
[    9.049537][  T190] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000012f29a70
[    9.049752][  T190] RBP: ff11000013e6c000 R08: 1fe22000025e534f R09: ff11000012e70ba8
[    9.049955][  T190] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[    9.050163][  T190] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[    9.050361][  T190] FS:  00007f07e5392840(0000) GS:ff1100009d605000(0000) knlGS:0000000000000000
[    9.050610][  T190] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.050777][  T190] CR2: 00000000004a77b8 CR3: 0000000013672004 CR4: 0000000000771ef0
[    9.050975][  T190] PKRU: 55555554
[    9.051074][  T190] Call Trace:
[    9.051179][  T190]  <TASK>
[    9.051250][  T190]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.051391][  T190]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.051493][  T190]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.051785][  T190]  __dev_notify_flags (net/core/dev.c:9787)
[    9.052005][  T190]  ? netif_change_name (net/core/dev.c:1495)
[    9.052147][  T190]  ? __dev_change_flags (net/core/dev.c:9752)
[    9.052281][  T190]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[    9.052418][  T190]  rtnl_configure_link (net/core/rtnetlink.c:3670)
[    9.052556][  T190]  rtnl_newlink_create (net/core/rtnetlink.c:3914)
[    9.052749][  T190]  ? rtnl_create_link (net/core/rtnetlink.c:3691)
[    9.052882][  T190]  ? __dev_get_by_name (net/core/dev.c:883)
[    9.053019][  T190]  ? rtnl_dev_get (net/core/rtnetlink.c:3478)
[    9.053166][  T190]  __rtnl_newlink (net/core/rtnetlink.c:4035)
[    9.053304][  T190]  rtnl_newlink (net/core/rtnetlink.c:4150)
[    9.053439][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.053568][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.053770][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.053904][  T190]  ? mark_usage (kernel/locking/lockdep.c:4674)
[    9.054034][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.054173][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.054318][  T190]  ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1))
[    9.054453][  T190]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7061)
[    9.054661][  T190]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[    9.054798][  T190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.054928][  T190]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.055067][  T190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[    9.055203][  T190]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[    9.055339][  T190]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.055470][  T190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[    9.055676][  T190]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.055813][  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))
[    9.055949][  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))
[    9.056080][  T190]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.056214][  T190]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.056342][  T190]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.056473][  T190]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.056628][  T190]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.056765][  T190]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.056899][  T190]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[    9.057029][  T190]  ? copy_msghdr_from_user (net/socket.c:2635)
[    9.057163][  T190]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349)
[    9.057323][  T190]  ? move_addr_to_kernel (net/socket.c:258)
[    9.057454][  T190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[    9.057587][  T190]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[    9.057717][  T190]  ___sys_sendmsg (net/socket.c:2752)
[    9.057843][  T190]  ? wp_page_copy (./include/linux/pgtable.h:117 mm/memory.c:3976)
[    9.057972][  T190]  ? copy_msghdr_from_user (net/socket.c:2603)
[    9.058105][  T190]  ? do_wp_page (./include/linux/pgtable.h:117 mm/memory.c:4331)
[    9.058242][  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))
[    9.058373][  T190]  __sys_sendmsg (net/socket.c:2784)
[    9.058501][  T190]  ? __sys_sendmsg_sock (net/socket.c:2765)
[    9.058638][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.058767][  T190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.058895][  T190]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.059024][  T190]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.059154][  T190]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.059283][  T190]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.059443][  T190] RIP: 0033:0x7f07e55cc08e
[    9.059583][  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
[    9.060040][  T190] RSP: 002b:00007fffb52d1f30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    9.060237][  T190] RAX: ffffffffffffffda RBX: 00007fffb52d26e8 RCX: 00007f07e55cc08e
[    9.060431][  T190] RDX: 0000000000000000 RSI: 00007fffb52d1fe0 RDI: 0000000000000005
[    9.060626][  T190] RBP: 00007fffb52d1f40 R08: 0000000000000000 R09: 0000000000000000
[    9.060816][  T190] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10c53b
[    9.061008][  T190] R13: 000000000049f620 R14: 0000000000000000 R15: 00007fffb52d26b0
| [    9.344105][  T216] ------------[ cut here ]------------
| [    9.344343][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/216
| [    9.344700][  T216] Modules linked in: netdevsim
| [    9.345319][  T216] Tainted: [W]=WARN
[    9.345474][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.345712][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.345946][  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
[    9.346688][  T216] RSP: 0018:ffa0000000727310 EFLAGS: 00010286
[    9.347019][  T216] RAX: 00000000ffffffa6 RBX: ff110000049d9cc0 RCX: 1ff40000000e4e28
[    9.347404][  T216] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000049d9d70
[    9.347795][  T216] RBP: ff11000012d8a000 R08: 1fe220000093b3af R09: ff11000004dfaed0
[    9.348089][  T216] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.348369][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.348661][  T216] FS:  00007f20841e5840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[    9.348990][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.349253][  T216] CR2: 00007f208479a004 CR3: 0000000012ea7006 CR4: 0000000000771ef0
[    9.349544][  T216] PKRU: 55555554
[    9.349729][  T216] Call Trace:
[    9.349907][  T216]  <TASK>
[    9.350042][  T216]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.350312][  T216]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.350561][  T216]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[    9.350786][  T216]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.350981][  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)
[    9.351195][  T216]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.351391][  T216]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[    9.352361][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.352636][  T216]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.352904][  T216] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.353153][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.353411][  T216] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.353755][  T216] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.354086][  T216] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    9.354425][  T216]  devlink_reload (net/devlink/dev.c:462)
[    9.354717][  T216]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[    9.354984][  T216]  ? devlink_resources_validate (net/devlink/resource.c:471)
[    9.355240][  T216]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    9.355433][  T216]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    9.355698][  T216]  ? __nla_validate_parse (lib/nlattr.c:635)
[    9.355913][  T216]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.356119][  T216]  ? __nla_parse (lib/nlattr.c:732)
[    9.356346][  T216]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    9.356564][  T216]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[    9.356827][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.357035][  T216]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.357253][  T216]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[    9.357476][  T216]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[    9.357703][  T216]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[    9.357952][  T216]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.358212][  T216]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[    9.358419][  T216]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.358638][  T216]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[    9.358848][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.359069][  T216]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[    9.359295][  T216]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.359503][  T216]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[    9.359727][  T216]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.359948][  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))
[    9.360163][  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))
[    9.360373][  T216]  genl_rcv (net/netlink/genetlink.c:1218)
[    9.360544][  T216]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.360777][  T216]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.360987][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.361199][  T216]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.361404][  T216]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.361626][  T216]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.361840][  T216]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.362047][  T216]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    9.362270][  T216]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    9.362496][  T216]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    9.362729][  T216]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.362978][  T216]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.363192][  T216]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.363404][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.363631][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.363840][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.364057][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.364309][  T216] RIP: 0033:0x7f208441f08e
[    9.364520][  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
[    9.365117][  T216] RSP: 002b:00007ffda74ddc50 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    9.365417][  T216] RAX: ffffffffffffffda RBX: 000000002a5aa980 RCX: 00007f208441f08e
[    9.365724][  T216] RDX: 0000000000000038 RSI: 000000002a5aaba0 RDI: 0000000000000005
[    9.366012][  T216] RBP: 00007ffda74ddc60 R08: 00007f20846d3980 R09: 000000000000000c
[    9.366315][  T216] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    9.366622][  T216] R13: 000000002a5aa980 R14: 0000000000000000 R15: 0000000000000003
| [    9.414747][  T216] ------------[ cut here ]------------
| [    9.414963][  T216] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/216
| [    9.415279][  T216] Modules linked in: netdevsim
| [    9.415769][  T216] Tainted: [W]=WARN
[    9.415886][  T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.416078][  T216] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.416294][  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
[    9.416881][  T216] RSP: 0018:ffa0000000727268 EFLAGS: 00010286
[    9.417072][  T216] RAX: 00000000ffffffa6 RBX: ff11000004c7adc0 RCX: 1ff40000000e4e13
[    9.417300][  T216] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004c7ae70
[    9.417523][  T216] RBP: ff110000136a2000 R08: 1fe220000098f5cf R09: ff11000004dfaed0
[    9.417753][  T216] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[    9.417982][  T216] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000136a2000
[    9.418211][  T216] FS:  00007f20841e5840(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[    9.418477][  T216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.418673][  T216] CR2: 0000557a810c9d5c CR3: 0000000012ea7001 CR4: 0000000000771ef0
[    9.418899][  T216] PKRU: 55555554
[    9.419013][  T216] Call Trace:
[    9.419128][  T216]  <TASK>
[    9.419206][  T216]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.419358][  T216]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.419473][  T216]  register_netdevice (net/core/dev.c:11488)
[    9.419633][  T216]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.419818][  T216]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.419971][  T216] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.420170][  T216] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.420322][  T216] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.420509][  T216]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.420665][  T216]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.420852][  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))
[    9.421001][  T216]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.421114][  T216]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.421273][  T216]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.421462][  T216] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[    9.421656][  T216]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[    9.421840][  T216]  devlink_reload (net/devlink/dev.c:475)
[    9.421989][  T216]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[    9.422143][  T216]  ? devlink_resources_validate (net/devlink/resource.c:471)
[    9.422332][  T216]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    9.422480][  T216]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    9.422666][  T216]  ? __nla_validate_parse (lib/nlattr.c:635)
[    9.422814][  T216]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.422963][  T216]  ? __nla_parse (lib/nlattr.c:732)
[    9.423115][  T216]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    9.423269][  T216]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[    9.423459][  T216]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.423613][  T216]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.423762][  T216]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[    9.423915][  T216]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[    9.424065][  T216]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[    9.424265][  T216]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.424452][  T216]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[    9.424606][  T216]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.424754][  T216]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[    9.424902][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.425054][  T216]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[    9.425210][  T216]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.425360][  T216]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[    9.425511][  T216]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.425671][  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))
[    9.425820][  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))
[    9.425972][  T216]  genl_rcv (net/netlink/genetlink.c:1218)
[    9.426083][  T216]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.426240][  T216]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.426389][  T216]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.426540][  T216]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.426698][  T216]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.426847][  T216]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.426997][  T216]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.427170][  T216]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    9.427321][  T216]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    9.427482][  T216]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    9.427641][  T216]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.427828][  T216]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.427978][  T216]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.428131][  T216]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.428279][  T216]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.428428][  T216]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.428583][  T216]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.428768][  T216] RIP: 0033:0x7f208441f08e
[    9.428924][  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
[    9.429457][  T216] RSP: 002b:00007ffda74ddc50 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    9.429687][  T216] RAX: ffffffffffffffda RBX: 000000002a5aa980 RCX: 00007f208441f08e
[    9.429909][  T216] RDX: 0000000000000038 RSI: 000000002a5aaba0 RDI: 0000000000000005
[    9.430136][  T216] RBP: 00007ffda74ddc60 R08: 00007f20846d3980 R09: 000000000000000c
[    9.430359][  T216] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    9.430585][  T216] R13: 000000002a5aa980 R14: 0000000000000000 R15: 0000000000000003
| [    9.644463][  T226] ------------[ cut here ]------------
| [    9.644931][  T226] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/226
| [    9.645242][  T226] Modules linked in: netdevsim
| [    9.645714][  T226] Tainted: [W]=WARN
[    9.645830][  T226] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.646024][  T226] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.646223][  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
[    9.646755][  T226] RSP: 0018:ffa00000008b7310 EFLAGS: 00010286
[    9.646942][  T226] RAX: 00000000ffffffa6 RBX: ff11000012dd19c0 RCX: 1ff4000000116e28
[    9.647169][  T226] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000012dd1a70
[    9.647389][  T226] RBP: ff110000136a2000 R08: 1fe22000025ba34f R09: ff11000013c28bd0
[    9.647617][  T226] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[    9.647839][  T226] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[    9.648063][  T226] FS:  00007f1dec42d840(0000) GS:ff1100009d705000(0000) knlGS:0000000000000000
[    9.648327][  T226] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.648515][  T226] CR2: 00007f1dec9e2004 CR3: 0000000013fa8001 CR4: 0000000000771ef0
[    9.648742][  T226] PKRU: 55555554
[    9.648854][  T226] Call Trace:
[    9.648985][  T226]  <TASK>
[    9.649067][  T226]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[    9.649264][  T226]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[    9.649448][  T226]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[    9.649605][  T226]  ? netdev_run_todo (net/core/dev.c:11703)
[    9.649758][  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)
[    9.649912][  T226]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[    9.650061][  T226]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[    9.650212][  T226]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.650360][  T226]  ? unregister_netdevice_many (net/core/dev.c:12497)
[    9.650511][  T226] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[    9.650667][  T226]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.650817][  T226] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[    9.651002][  T226] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[    9.651193][  T226] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[    9.651378][  T226]  devlink_reload (net/devlink/dev.c:462)
[    9.651531][  T226]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[    9.651686][  T226]  ? devlink_resources_validate (net/devlink/resource.c:471)
[    9.651875][  T226]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    9.652023][  T226]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    9.652211][  T226]  ? __nla_validate_parse (lib/nlattr.c:635)
[    9.652360][  T226]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.652510][  T226]  ? __nla_parse (lib/nlattr.c:732)
[    9.652665][  T226]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    9.652814][  T226]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[    9.653001][  T226]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.653154][  T226]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.653302][  T226]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[    9.653454][  T226]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[    9.653612][  T226]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[    9.653795][  T226]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.653980][  T226]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[    9.654126][  T226]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.654281][  T226]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[    9.654431][  T226]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.654591][  T226]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[    9.654744][  T226]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.654892][  T226]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[    9.655042][  T226]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.655199][  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))
[    9.655348][  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))
[    9.655500][  T226]  genl_rcv (net/netlink/genetlink.c:1218)
[    9.655617][  T226]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.655770][  T226]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.655919][  T226]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.656073][  T226]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.656236][  T226]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.656402][  T226]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.656560][  T226]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.656722][  T226]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    9.656877][  T226]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    9.657051][  T226]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    9.657210][  T226]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.657409][  T226]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.657569][  T226]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.657733][  T226]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.657891][  T226]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.658040][  T226]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.658201][  T226]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.658393][  T226] RIP: 0033:0x7f1dec66708e
[    9.658555][  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
[    9.659103][  T226] RSP: 002b:00007ffeafa13130 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    9.659342][  T226] RAX: ffffffffffffffda RBX: 00000000237ec980 RCX: 00007f1dec66708e
[    9.659570][  T226] RDX: 0000000000000038 RSI: 00000000237ecba0 RDI: 0000000000000005
[    9.659803][  T226] RBP: 00007ffeafa13140 R08: 00007f1dec91b980 R09: 000000000000000c
[    9.660036][  T226] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    9.660270][  T226] R13: 00000000237ec980 R14: 0000000000000000 R15: 0000000000000003
| [    9.717136][  T226] ------------[ cut here ]------------
| [    9.717398][  T226] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/226
| [    9.717793][  T226] Modules linked in: netdevsim
| [    9.718387][  T226] Tainted: [W]=WARN
[    9.718558][  T226] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.718816][  T226] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[    9.719081][  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
[    9.719729][  T226] RSP: 0018:ffa00000008b7268 EFLAGS: 00010286
[    9.719993][  T226] RAX: 00000000ffffffa6 RBX: ff11000008da61c0 RCX: 1ff4000000116e13
[    9.720309][  T226] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008da6270
[    9.720615][  T226] RBP: ff11000012e1a000 R08: 1fe22000011b4c4f R09: ff11000013c28bd0
[    9.720910][  T226] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[    9.721211][  T226] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012e1a000
[    9.721502][  T226] FS:  00007f1dec42d840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[    9.721887][  T226] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.722178][  T226] CR2: 00007ffeafa11f58 CR3: 0000000013fa8004 CR4: 0000000000771ef0
[    9.722517][  T226] PKRU: 55555554
[    9.722731][  T226] Call Trace:
[    9.722924][  T226]  <TASK>
[    9.723075][  T226]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[    9.723331][  T226]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[    9.723526][  T226]  register_netdevice (net/core/dev.c:11488)
[    9.723783][  T226]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[    9.724064][  T226]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[    9.724319][  T226] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[    9.724659][  T226] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[    9.724909][  T226] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[    9.725222][  T226]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[    9.725473][  T226]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[    9.725768][  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))
[    9.725981][  T226]  ? static_obj (kernel/locking/lockdep.c:858)
[    9.726152][  T226]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[    9.726380][  T226]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[    9.726656][  T226] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[    9.726918][  T226]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[    9.727180][  T226]  devlink_reload (net/devlink/dev.c:475)
[    9.727396][  T226]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[    9.727623][  T226]  ? devlink_resources_validate (net/devlink/resource.c:471)
[    9.727891][  T226]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[    9.728107][  T226]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[    9.728369][  T226]  ? __nla_validate_parse (lib/nlattr.c:635)
[    9.728597][  T226]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.728816][  T226]  ? __nla_parse (lib/nlattr.c:732)
[    9.729032][  T226]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[    9.729270][  T226]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[    9.729619][  T226]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[    9.729899][  T226]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.730177][  T226]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[    9.730454][  T226]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[    9.730747][  T226]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[    9.731070][  T226]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[    9.731374][  T226]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[    9.731600][  T226]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[    9.731800][  T226]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[    9.731999][  T226]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.732216][  T226]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[    9.732417][  T226]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[    9.732642][  T226]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[    9.732845][  T226]  ? netlink_ack (./include/linux/skbuff.h:2718)
[    9.733067][  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))
[    9.733289][  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))
[    9.733517][  T226]  genl_rcv (net/netlink/genetlink.c:1218)
[    9.733713][  T226]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[    9.733933][  T226]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[    9.734152][  T226]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[    9.734371][  T226]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[    9.734608][  T226]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[    9.734822][  T226]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.735038][  T226]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[    9.735268][  T226]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[    9.735488][  T226]  ? __ia32_sys_getpeername (net/socket.c:2219)
[    9.735726][  T226]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[    9.735946][  T226]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.736211][  T226]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[    9.736443][  T226]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[    9.736679][  T226]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[    9.736894][  T226]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[    9.737105][  T226]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[    9.737340][  T226]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.737608][  T226] RIP: 0033:0x7f1dec66708e
[    9.737826][  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
[    9.738473][  T226] RSP: 002b:00007ffeafa13130 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    9.738784][  T226] RAX: ffffffffffffffda RBX: 00000000237ec980 RCX: 00007f1dec66708e
[    9.739083][  T226] RDX: 0000000000000038 RSI: 00000000237ecba0 RDI: 0000000000000005
[    9.739400][  T226] RBP: 00007ffeafa13140 R08: 00007f1dec91b980 R09: 000000000000000c
[    9.739712][  T226] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[    9.740013][  T226] R13: 00000000237ec980 R14: 0000000000000000 R15: 0000000000000003
| [   10.291737][  T271] ------------[ cut here ]------------
| [   10.291928][  T271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/271
| [   10.292240][  T271] Modules linked in: netdevsim
| [   10.292706][  T271] Tainted: [W]=WARN
[   10.292821][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.293010][  T271] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.293208][  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
[   10.293743][  T271] RSP: 0018:ffa0000000a47310 EFLAGS: 00010286
[   10.293928][  T271] RAX: 00000000ffffffa6 RBX: ff11000001f25cc0 RCX: 1ff4000000148e28
[   10.294154][  T271] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000001f25d70
[   10.294381][  T271] RBP: ff11000012e1a000 R08: 1fe22000003e4baf R09: ff11000009d1d1d0
[   10.295342][  T271] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   10.295562][  T271] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.295894][  T271] FS:  00007f15dc13d840(0000) GS:ff1100009d705000(0000) knlGS:0000000000000000
[   10.296159][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.296346][  T271] CR2: 00007f15dc6f2004 CR3: 0000000016b0a006 CR4: 0000000000771ef0
[   10.296566][  T271] PKRU: 55555554
[   10.296753][  T271] Call Trace:
[   10.296863][  T271]  <TASK>
[   10.296940][  T271]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.297130][  T271]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.297321][  T271]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   10.297473][  T271]  ? netdev_run_todo (net/core/dev.c:11703)
[   10.297685][  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)
[   10.297835][  T271]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   10.297981][  T271]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   10.298127][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.298279][  T271]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   10.298429][  T271] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   10.298581][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.298730][  T271] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   10.298915][  T271] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   10.299099][  T271] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   10.299287][  T271]  devlink_reload (net/devlink/dev.c:462)
[   10.299436][  T271]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   10.299588][  T271]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   10.299775][  T271]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   10.299920][  T271]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   10.300116][  T271]  ? __nla_validate_parse (lib/nlattr.c:635)
[   10.300269][  T271]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.300418][  T271]  ? __nla_parse (lib/nlattr.c:732)
[   10.300567][  T271]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   10.300720][  T271]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   10.300904][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.301048][  T271]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.301201][  T271]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.301351][  T271]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   10.301499][  T271]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   10.301687][  T271]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.301869][  T271]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   10.302016][  T271]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.302166][  T271]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   10.302313][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.302462][  T271]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   10.302614][  T271]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.302763][  T271]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   10.302910][  T271]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.303060][  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))
[   10.303210][  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))
[   10.303359][  T271]  genl_rcv (net/netlink/genetlink.c:1218)
[   10.303469][  T271]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.303622][  T271]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.303769][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.303917][  T271]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.304067][  T271]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.304218][  T271]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.304366][  T271]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.304513][  T271]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   10.304665][  T271]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   10.304822][  T271]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   10.304970][  T271]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.305156][  T271]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.305302][  T271]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.305447][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.305594][  T271]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.305738][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.305884][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.306064][  T271] RIP: 0033:0x7f15dc37708e
[   10.306221][  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
[   10.306738][  T271] RSP: 002b:00007ffc554e96c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   10.306959][  T271] RAX: ffffffffffffffda RBX: 000000000a829980 RCX: 00007f15dc37708e
[   10.307178][  T271] RDX: 0000000000000038 RSI: 000000000a829ba0 RDI: 0000000000000005
[   10.307393][  T271] RBP: 00007ffc554e96d0 R08: 00007f15dc62b980 R09: 000000000000000c
[   10.307615][  T271] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   10.307830][  T271] R13: 000000000a829980 R14: 0000000000000000 R15: 0000000000000003
| [   10.358563][  T271] ------------[ cut here ]------------
| [   10.358846][  T271] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/271
| [   10.359244][  T271] Modules linked in: netdevsim
| [   10.359848][  T271] Tainted: [W]=WARN
[   10.360029][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.360273][  T271] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.360520][  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
[   10.361116][  T271] RSP: 0018:ffa0000000a47268 EFLAGS: 00010286
[   10.361365][  T271] RAX: 00000000ffffffa6 RBX: ff110000049d90c0 RCX: 1ff4000000148e13
[   10.361652][  T271] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000049d9170
[   10.361932][  T271] RBP: ff1100001527a000 R08: 1fe220000093b22f R09: ff11000009d1d1d0
[   10.362215][  T271] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   10.362493][  T271] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001527a000
[   10.362782][  T271] FS:  00007f15dc13d840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[   10.363097][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.363343][  T271] CR2: 00007f83f846e574 CR3: 0000000016b0a004 CR4: 0000000000771ef0
[   10.363630][  T271] PKRU: 55555554
[   10.363790][  T271] Call Trace:
[   10.363950][  T271]  <TASK>
[   10.364080][  T271]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.364290][  T271]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.364459][  T271]  register_netdevice (net/core/dev.c:11488)
[   10.364676][  T271]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.364911][  T271]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   10.365122][  T271] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   10.365377][  T271] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   10.365591][  T271] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   10.365827][  T271]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   10.366029][  T271]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   10.366273][  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))
[   10.366478][  T271]  ? static_obj (kernel/locking/lockdep.c:858)
[   10.366657][  T271]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   10.366861][  T271]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   10.367098][  T271] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   10.367342][  T271]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   10.367598][  T271]  devlink_reload (net/devlink/dev.c:475)
[   10.367803][  T271]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   10.368002][  T271]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   10.368254][  T271]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   10.368451][  T271]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   10.368699][  T271]  ? __nla_validate_parse (lib/nlattr.c:635)
[   10.368901][  T271]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.369102][  T271]  ? __nla_parse (lib/nlattr.c:732)
[   10.369314][  T271]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   10.369516][  T271]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   10.369771][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.369970][  T271]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.370178][  T271]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.370381][  T271]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   10.370592][  T271]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   10.370825][  T271]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.371067][  T271]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   10.371270][  T271]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.371466][  T271]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   10.371679][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.371885][  T271]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   10.372086][  T271]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.372291][  T271]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   10.372498][  T271]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.372710][  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))
[   10.372910][  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))
[   10.373115][  T271]  genl_rcv (net/netlink/genetlink.c:1218)
[   10.373286][  T271]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.373484][  T271]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.373695][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.373899][  T271]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.374105][  T271]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.374308][  T271]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.374507][  T271]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.374722][  T271]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   10.374929][  T271]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   10.375146][  T271]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   10.375345][  T271]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.375599][  T271]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.375801][  T271]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.376003][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.376210][  T271]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.376406][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.376621][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.376860][  T271] RIP: 0033:0x7f15dc37708e
[   10.377074][  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
[   10.377681][  T271] RSP: 002b:00007ffc554e96c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   10.377958][  T271] RAX: ffffffffffffffda RBX: 000000000a829980 RCX: 00007f15dc37708e
[   10.378237][  T271] RDX: 0000000000000038 RSI: 000000000a829ba0 RDI: 0000000000000005
[   10.378524][  T271] RBP: 00007ffc554e96d0 R08: 00007f15dc62b980 R09: 000000000000000c
[   10.378808][  T271] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   10.379075][  T271] R13: 000000000a829980 R14: 0000000000000000 R15: 0000000000000003
| [   10.609642][  T282] ------------[ cut here ]------------
| [   10.609827][  T282] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/282
| [   10.610128][  T282] Modules linked in: netdevsim
| [   10.610922][  T282] Tainted: [W]=WARN
[   10.611038][  T282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.611231][  T282] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.611426][  T282] 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
[   10.611963][  T282] RSP: 0018:ffa0000000aa7310 EFLAGS: 00010286
[   10.612162][  T282] RAX: 00000000ffffffa6 RBX: ff11000004a32040 RCX: 1ff4000000154e28
[   10.612391][  T282] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004a320f0
[   10.612621][  T282] RBP: ff1100001527a000 R08: 1fe220000094641f R09: ff11000013c28bd0
[   10.612845][  T282] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.613072][  T282] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   10.613304][  T282] FS:  00007f379f24a840(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[   10.613572][  T282] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.613769][  T282] CR2: 00007f379f7ff004 CR3: 000000001504e002 CR4: 0000000000771ef0
[   10.614021][  T282] PKRU: 55555554
[   10.614140][  T282] Call Trace:
[   10.614254][  T282]  <TASK>
[   10.614332][  T282]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   10.614529][  T282]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   10.614722][  T282]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   10.614876][  T282]  ? netdev_run_todo (net/core/dev.c:11703)
[   10.615028][  T282]  ? 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)
[   10.615188][  T282]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   10.615339][  T282]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   10.615493][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.615650][  T282]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   10.615804][  T282] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   10.615955][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.616108][  T282] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   10.616308][  T282] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   10.616500][  T282] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   10.616696][  T282]  devlink_reload (net/devlink/dev.c:462)
[   10.616851][  T282]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   10.617008][  T282]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   10.617202][  T282]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   10.617351][  T282]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   10.617534][  T282]  ? __nla_validate_parse (lib/nlattr.c:635)
[   10.617689][  T282]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.617838][  T282]  ? __nla_parse (lib/nlattr.c:732)
[   10.617987][  T282]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   10.618142][  T282]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   10.618326][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.618476][  T282]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.618629][  T282]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.618783][  T282]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   10.618933][  T282]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   10.619115][  T282]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.619303][  T282]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   10.619450][  T282]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.619604][  T282]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   10.619756][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.619907][  T282]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   10.620056][  T282]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.620207][  T282]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   10.620355][  T282]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.620507][  T282]  ? 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))
[   10.620663][  T282]  ? 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))
[   10.620813][  T282]  genl_rcv (net/netlink/genetlink.c:1218)
[   10.620923][  T282]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.621071][  T282]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.621221][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.621369][  T282]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.621516][  T282]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.621669][  T282]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.621818][  T282]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.621966][  T282]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   10.622114][  T282]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   10.622278][  T282]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   10.622426][  T282]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.622615][  T282]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.622767][  T282]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.622917][  T282]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.623063][  T282]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.623212][  T282]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.623360][  T282]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.623544][  T282] RIP: 0033:0x7f379f48408e
[   10.623705][  T282] 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
[   10.624227][  T282] RSP: 002b:00007ffebd3452d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   10.624452][  T282] RAX: ffffffffffffffda RBX: 000000000eacc980 RCX: 00007f379f48408e
[   10.624677][  T282] RDX: 0000000000000038 RSI: 000000000eaccba0 RDI: 0000000000000005
[   10.624899][  T282] RBP: 00007ffebd3452e0 R08: 00007f379f738980 R09: 000000000000000c
[   10.625117][  T282] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   10.625341][  T282] R13: 000000000eacc980 R14: 0000000000000000 R15: 0000000000000003
| [   10.671227][  T282] ------------[ cut here ]------------
| [   10.671405][  T282] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/282
| [   10.671713][  T282] Modules linked in: netdevsim
| [   10.672166][  T282] Tainted: [W]=WARN
[   10.672278][  T282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.672460][  T282] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   10.672661][  T282] 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
[   10.673185][  T282] RSP: 0018:ffa0000000aa7268 EFLAGS: 00010286
[   10.673369][  T282] RAX: 00000000ffffffa6 RBX: ff11000008da6f40 RCX: 1ff4000000154e13
[   10.673592][  T282] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008da6ff0
[   10.673811][  T282] RBP: ff110000135ca000 R08: 1fe22000011b4dff R09: ff11000013c28bd0
[   10.674027][  T282] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   10.674246][  T282] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000135ca000
[   10.674465][  T282] FS:  00007f379f24a840(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[   10.674729][  T282] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.674913][  T282] CR2: 00007f379f7ff004 CR3: 000000001504e002 CR4: 0000000000771ef0
[   10.675131][  T282] PKRU: 55555554
[   10.675246][  T282] Call Trace:
[   10.675354][  T282]  <TASK>
[   10.675430][  T282]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   10.675582][  T282]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   10.675696][  T282]  register_netdevice (net/core/dev.c:11488)
[   10.675845][  T282]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   10.676024][  T282]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   10.676178][  T282] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   10.676364][  T282] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   10.676511][  T282] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   10.676758][  T282]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   10.676906][  T282]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   10.677089][  T282]  ? 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))
[   10.677238][  T282]  ? static_obj (kernel/locking/lockdep.c:858)
[   10.677348][  T282]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   10.677497][  T282]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   10.677686][  T282] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   10.677871][  T282]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   10.678051][  T282]  devlink_reload (net/devlink/dev.c:475)
[   10.678201][  T282]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   10.678345][  T282]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   10.678528][  T282]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   10.678677][  T282]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   10.678855][  T282]  ? __nla_validate_parse (lib/nlattr.c:635)
[   10.679004][  T282]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.679152][  T282]  ? __nla_parse (lib/nlattr.c:732)
[   10.679300][  T282]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   10.679447][  T282]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   10.679633][  T282]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   10.679780][  T282]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.679925][  T282]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.680075][  T282]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   10.680223][  T282]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   10.680404][  T282]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   10.680589][  T282]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   10.680734][  T282]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   10.680877][  T282]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   10.681023][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.681173][  T282]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   10.681317][  T282]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   10.681460][  T282]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   10.681610][  T282]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.681758][  T282]  ? 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))
[   10.681903][  T282]  ? 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))
[   10.682049][  T282]  genl_rcv (net/netlink/genetlink.c:1218)
[   10.682163][  T282]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.682309][  T282]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.682453][  T282]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   10.682606][  T282]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   10.682749][  T282]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   10.682893][  T282]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.683037][  T282]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   10.683188][  T282]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   10.683334][  T282]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   10.683490][  T282]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   10.683640][  T282]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.683822][  T282]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   10.683966][  T282]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   10.684109][  T282]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   10.684255][  T282]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   10.684398][  T282]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   10.684544][  T282]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.684730][  T282] RIP: 0033:0x7f379f48408e
[   10.684882][  T282] 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
[   10.685398][  T282] RSP: 002b:00007ffebd3452d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   10.685622][  T282] RAX: ffffffffffffffda RBX: 000000000eacc980 RCX: 00007f379f48408e
[   10.685838][  T282] RDX: 0000000000000038 RSI: 000000000eaccba0 RDI: 0000000000000005
[   10.686053][  T282] RBP: 00007ffebd3452e0 R08: 00007f379f738980 R09: 000000000000000c
[   10.686275][  T282] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   10.686493][  T282] R13: 000000000eacc980 R14: 0000000000000000 R15: 0000000000000003
| [   11.353980][  T343] ------------[ cut here ]------------
| [   11.354165][  T343] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/343
| [   11.354459][  T343] Modules linked in: netdevsim
| [   11.354995][  T343] Tainted: [W]=WARN
[   11.355104][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.355286][  T343] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.355474][  T343] 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
[   11.355987][  T343] RSP: 0018:ffa0000000ca7310 EFLAGS: 00010286
[   11.356172][  T343] RAX: 00000000ffffffa6 RBX: ff11000001f25b40 RCX: 1ff4000000194e28
[   11.356384][  T343] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000001f25bf0
[   11.356606][  T343] RBP: ff110000135ca000 R08: 1fe22000003e4b7f R09: ff11000012d6aed0
[   11.356822][  T343] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   11.357035][  T343] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   11.357257][  T343] FS:  00007f347e2dd840(0000) GS:ff1100009d705000(0000) knlGS:0000000000000000
[   11.357507][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.357696][  T343] CR2: 0000557a810c9d5c CR3: 000000001590f001 CR4: 0000000000771ef0
[   11.357917][  T343] PKRU: 55555554
[   11.358024][  T343] Call Trace:
[   11.358135][  T343]  <TASK>
[   11.358215][  T343]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.358399][  T343]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   11.358585][  T343]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   11.358733][  T343]  ? netdev_run_todo (net/core/dev.c:11703)
[   11.358878][  T343]  ? 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)
[   11.359025][  T343]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   11.359178][  T343]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   11.359324][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.359473][  T343]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   11.359624][  T343] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   11.359770][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.359916][  T343] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   11.360096][  T343] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   11.360281][  T343] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   11.360460][  T343]  devlink_reload (net/devlink/dev.c:462)
[   11.360612][  T343]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   11.360757][  T343]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   11.360936][  T343]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   11.361079][  T343]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   11.361257][  T343]  ? __nla_validate_parse (lib/nlattr.c:635)
[   11.361402][  T343]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.361545][  T343]  ? __nla_parse (lib/nlattr.c:732)
[   11.361697][  T343]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   11.361841][  T343]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   11.362024][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.362173][  T343]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.362315][  T343]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.362461][  T343]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   11.362611][  T343]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   11.362787][  T343]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   11.362963][  T343]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   11.363104][  T343]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.363252][  T343]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   11.363397][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.363544][  T343]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   11.363695][  T343]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.363837][  T343]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   11.363978][  T343]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.364127][  T343]  ? 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))
[   11.364282][  T343]  ? 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))
[   11.364426][  T343]  genl_rcv (net/netlink/genetlink.c:1218)
[   11.364534][  T343]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.364687][  T343]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.364831][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.364979][  T343]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.365126][  T343]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.365275][  T343]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.365421][  T343]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.365566][  T343]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   11.365718][  T343]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   11.365873][  T343]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   11.366016][  T343]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.366203][  T343]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.366348][  T343]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.366490][  T343]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.366639][  T343]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.366781][  T343]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.366926][  T343]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.367103][  T343] RIP: 0033:0x7f347e51708e
[   11.367258][  T343] 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
[   11.367771][  T343] RSP: 002b:00007ffe21fd29c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   11.367989][  T343] RAX: ffffffffffffffda RBX: 00000000388e9980 RCX: 00007f347e51708e
[   11.368207][  T343] RDX: 0000000000000038 RSI: 00000000388e9ba0 RDI: 0000000000000005
[   11.368420][  T343] RBP: 00007ffe21fd29d0 R08: 00007f347e7cb980 R09: 000000000000000c
[   11.368639][  T343] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   11.368857][  T343] R13: 00000000388e9980 R14: 0000000000000000 R15: 0000000000000003
| [   11.415692][  T343] ------------[ cut here ]------------
| [   11.415889][  T343] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: devlink/343
| [   11.416199][  T343] Modules linked in: netdevsim
| [   11.416675][  T343] Tainted: [W]=WARN
[   11.416793][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.416986][  T343] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.417189][  T343] 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
[   11.417800][  T343] RSP: 0018:ffa0000000ca7268 EFLAGS: 00010286
[   11.417989][  T343] RAX: 00000000ffffffa6 RBX: ff110000049d8c40 RCX: 1ff4000000194e13
[   11.418217][  T343] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000049d8cf0
[   11.418439][  T343] RBP: ff11000012d2a000 R08: 1fe220000093b19f R09: ff11000012d6aed0
[   11.418730][  T343] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   11.419020][  T343] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012d2a000
[   11.419251][  T343] FS:  00007f347e2dd840(0000) GS:ff1100009d605000(0000) knlGS:0000000000000000
[   11.419514][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.419767][  T343] CR2: 00007f63ec4c0f98 CR3: 000000001590f006 CR4: 0000000000771ef0
[   11.419994][  T343] PKRU: 55555554
[   11.420107][  T343] Call Trace:
[   11.420223][  T343]  <TASK>
[   11.420303][  T343]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.420456][  T343]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.420570][  T343]  register_netdevice (net/core/dev.c:11488)
[   11.420786][  T343]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.420969][  T343]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   11.421123][  T343] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   11.421320][  T343] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   11.421473][  T343] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   11.421724][  T343]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   11.421874][  T343]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   11.422058][  T343]  ? 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))
[   11.422209][  T343]  ? static_obj (kernel/locking/lockdep.c:858)
[   11.422321][  T343]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   11.422476][  T343]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   11.422738][  T343] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   11.422928][  T343]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   11.423111][  T343]  devlink_reload (net/devlink/dev.c:475)
[   11.423263][  T343]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   11.423412][  T343]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   11.423665][  T343]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   11.423812][  T343]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   11.423995][  T343]  ? __nla_validate_parse (lib/nlattr.c:635)
[   11.424148][  T343]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.424299][  T343]  ? __nla_parse (lib/nlattr.c:732)
[   11.424455][  T343]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   11.424618][  T343]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   11.424807][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.424957][  T343]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.425106][  T343]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.425263][  T343]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   11.425413][  T343]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   11.425601][  T343]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   11.425785][  T343]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   11.425930][  T343]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.426079][  T343]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   11.426231][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.426383][  T343]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   11.426532][  T343]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.426686][  T343]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   11.426835][  T343]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.426987][  T343]  ? 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))
[   11.427136][  T343]  ? 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))
[   11.427289][  T343]  genl_rcv (net/netlink/genetlink.c:1218)
[   11.427400][  T343]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.427552][  T343]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.427702][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.427852][  T343]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.428000][  T343]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.428155][  T343]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.428308][  T343]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.428457][  T343]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   11.428612][  T343]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   11.428771][  T343]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   11.428920][  T343]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.429105][  T343]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.429257][  T343]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.429406][  T343]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.429555][  T343]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.429707][  T343]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.429856][  T343]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.430041][  T343] RIP: 0033:0x7f347e51708e
[   11.430208][  T343] 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
[   11.430743][  T343] RSP: 002b:00007ffe21fd29c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   11.430969][  T343] RAX: ffffffffffffffda RBX: 00000000388e9980 RCX: 00007f347e51708e
[   11.431199][  T343] RDX: 0000000000000038 RSI: 00000000388e9ba0 RDI: 0000000000000005
[   11.431421][  T343] RBP: 00007ffe21fd29d0 R08: 00007f347e7cb980 R09: 000000000000000c
[   11.431652][  T343] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   11.431878][  T343] R13: 00000000388e9980 R14: 0000000000000000 R15: 0000000000000003
| [   11.649119][  T354] ------------[ cut here ]------------
| [   11.649315][  T354] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/354
| [   11.649621][  T354] Modules linked in: netdevsim
| [   11.650068][  T354] Tainted: [W]=WARN
[   11.650184][  T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.650367][  T354] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.650554][  T354] 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
[   11.651677][  T354] RSP: 0018:ffa0000000d07310 EFLAGS: 00010286
[   11.651865][  T354] RAX: 00000000ffffffa6 RBX: ff1100000aadcac0 RCX: 1ff40000001a0e28
[   11.652083][  T354] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000aadcb70
[   11.652301][  T354] RBP: ff11000012d2a000 R08: 1fe220000155b96f R09: ff11000012222ed0
[   11.652513][  T354] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   11.652733][  T354] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   11.652950][  T354] FS:  00007f2d39234840(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[   11.653206][  T354] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.653388][  T354] CR2: 00007f2d397e9004 CR3: 00000000159e7003 CR4: 0000000000771ef0
[   11.653609][  T354] PKRU: 55555554
[   11.653718][  T354] Call Trace:
[   11.653825][  T354]  <TASK>
[   11.653899][  T354]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   11.654082][  T354]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   11.654261][  T354]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   11.654407][  T354]  ? netdev_run_todo (net/core/dev.c:11703)
[   11.654550][  T354]  ? 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)
[   11.654702][  T354]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   11.654845][  T354]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   11.654988][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.655133][  T354]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   11.655283][  T354] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   11.655427][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.655570][  T354] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   11.655755][  T354] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   11.655939][  T354] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   11.656120][  T354]  devlink_reload (net/devlink/dev.c:462)
[   11.656268][  T354]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   11.656411][  T354]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   11.656596][  T354]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   11.656739][  T354]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   11.656915][  T354]  ? __nla_validate_parse (lib/nlattr.c:635)
[   11.657059][  T354]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.657208][  T354]  ? __nla_parse (lib/nlattr.c:732)
[   11.657353][  T354]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   11.657498][  T354]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   11.657684][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.657826][  T354]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.657969][  T354]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.658113][  T354]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   11.658260][  T354]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   11.658436][  T354]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   11.658619][  T354]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   11.658761][  T354]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.658904][  T354]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   11.659046][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.659195][  T354]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   11.659351][  T354]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.659498][  T354]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   11.659650][  T354]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.659799][  T354]  ? 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))
[   11.659942][  T354]  ? 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))
[   11.660088][  T354]  genl_rcv (net/netlink/genetlink.c:1218)
[   11.660200][  T354]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.660346][  T354]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.660489][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.660641][  T354]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.660785][  T354]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.660931][  T354]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.661076][  T354]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.661225][  T354]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   11.661370][  T354]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   11.661527][  T354]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   11.661678][  T354]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.661860][  T354]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.662005][  T354]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.662154][  T354]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.662298][  T354]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.662440][  T354]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.662590][  T354]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.662772][  T354] RIP: 0033:0x7f2d3946e08e
[   11.662925][  T354] 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
[   11.663439][  T354] RSP: 002b:00007ffc075a6020 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   11.663662][  T354] RAX: ffffffffffffffda RBX: 0000000000d14980 RCX: 00007f2d3946e08e
[   11.663877][  T354] RDX: 0000000000000038 RSI: 0000000000d14ba0 RDI: 0000000000000005
[   11.664089][  T354] RBP: 00007ffc075a6030 R08: 00007f2d39722980 R09: 000000000000000c
[   11.664309][  T354] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   11.664529][  T354] R13: 0000000000d14980 R14: 0000000000000000 R15: 0000000000000003
| [   11.712600][  T354] ------------[ cut here ]------------
| [   11.712791][  T354] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/354
| [   11.713087][  T354] Modules linked in: netdevsim
| [   11.713553][  T354] Tainted: [W]=WARN
[   11.713673][  T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.713854][  T354] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   11.714045][  T354] 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
[   11.714565][  T354] RSP: 0018:ffa0000000d07268 EFLAGS: 00010286
[   11.714758][  T354] RAX: 00000000ffffffa6 RBX: ff11000012f296c0 RCX: 1ff40000001a0e13
[   11.714975][  T354] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000012f29770
[   11.715195][  T354] RBP: ff110000122b2000 R08: 1fe22000025e52ef R09: ff11000012222ed0
[   11.715410][  T354] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   11.715630][  T354] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000122b2000
[   11.715846][  T354] FS:  00007f2d39234840(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[   11.716101][  T354] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.716287][  T354] CR2: 00007f2d397e9004 CR3: 00000000159e7003 CR4: 0000000000771ef0
[   11.716506][  T354] PKRU: 55555554
[   11.716622][  T354] Call Trace:
[   11.716730][  T354]  <TASK>
[   11.716805][  T354]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   11.716952][  T354]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   11.717064][  T354]  register_netdevice (net/core/dev.c:11488)
[   11.717216][  T354]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   11.717394][  T354]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   11.717544][  T354] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   11.717803][  T354] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   11.717948][  T354] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   11.718128][  T354]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   11.718281][  T354]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   11.718465][  T354]  ? 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))
[   11.718674][  T354]  ? static_obj (kernel/locking/lockdep.c:858)
[   11.718786][  T354]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   11.718932][  T354]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   11.719117][  T354] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   11.719302][  T354]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   11.719483][  T354]  devlink_reload (net/devlink/dev.c:475)
[   11.719692][  T354]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   11.719900][  T354]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   11.720084][  T354]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   11.720229][  T354]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   11.720409][  T354]  ? __nla_validate_parse (lib/nlattr.c:635)
[   11.720555][  T354]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.720762][  T354]  ? __nla_parse (lib/nlattr.c:732)
[   11.720910][  T354]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   11.721058][  T354]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   11.721244][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   11.721390][  T354]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.721535][  T354]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.721748][  T354]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   11.721894][  T354]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   11.722074][  T354]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   11.722259][  T354]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   11.722403][  T354]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   11.722547][  T354]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   11.722698][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.722844][  T354]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   11.722988][  T354]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   11.723132][  T354]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   11.723281][  T354]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.723428][  T354]  ? 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))
[   11.723573][  T354]  ? 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))
[   11.723724][  T354]  genl_rcv (net/netlink/genetlink.c:1218)
[   11.723831][  T354]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.723977][  T354]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.724120][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   11.724268][  T354]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   11.724415][  T354]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   11.724560][  T354]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.724713][  T354]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   11.724859][  T354]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   11.725004][  T354]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   11.725165][  T354]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   11.725309][  T354]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.725507][  T354]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   11.725663][  T354]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   11.725807][  T354]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   11.725951][  T354]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   11.726094][  T354]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   11.726244][  T354]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.726423][  T354] RIP: 0033:0x7f2d3946e08e
[   11.726575][  T354] 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
[   11.727096][  T354] RSP: 002b:00007ffc075a6020 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   11.727322][  T354] RAX: ffffffffffffffda RBX: 0000000000d14980 RCX: 00007f2d3946e08e
[   11.727542][  T354] RDX: 0000000000000038 RSI: 0000000000d14ba0 RDI: 0000000000000005
[   11.727766][  T354] RBP: 00007ffc075a6030 R08: 00007f2d39722980 R09: 000000000000000c
[   11.727984][  T354] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   11.728312][  T354] R13: 0000000000d14980 R14: 0000000000000000 R15: 0000000000000003
| [   12.099097][  T386] ------------[ cut here ]------------
| [   12.099335][  T386] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/386
| [   12.099687][  T386] Modules linked in: netdevsim
| [   12.100226][  T386] Tainted: [W]=WARN
[   12.100380][  T386] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.100621][  T386] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.100866][  T386] 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
[   12.101424][  T386] RSP: 0018:ffa0000000df7310 EFLAGS: 00010286
[   12.101738][  T386] RAX: 00000000ffffffa6 RBX: ff1100000aaac940 RCX: 1ff40000001bee28
[   12.102061][  T386] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000aaac9f0
[   12.102409][  T386] RBP: ff110000122b2000 R08: 1fe220000155593f R09: ff110000091c8bd0
[   12.102794][  T386] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[   12.103161][  T386] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.103521][  T386] FS:  00007f5ccf1b2840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[   12.103904][  T386] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.104197][  T386] CR2: 00007f5ccf767004 CR3: 000000001237f003 CR4: 0000000000771ef0
[   12.104489][  T386] PKRU: 55555554
[   12.104652][  T386] Call Trace:
[   12.104805][  T386]  <TASK>
[   12.104926][  T386]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.105163][  T386]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.105388][  T386]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   12.105594][  T386]  ? netdev_run_todo (net/core/dev.c:11703)
[   12.105784][  T386]  ? 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)
[   12.105978][  T386]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   12.106172][  T386]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   12.106363][  T386]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.106558][  T386]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   12.106762][  T386] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   12.106953][  T386]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.107142][  T386] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   12.107381][  T386] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   12.107621][  T386] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   12.107846][  T386]  devlink_reload (net/devlink/dev.c:462)
[   12.108037][  T386]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   12.108236][  T386]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   12.108464][  T386]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   12.108675][  T386]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   12.108897][  T386]  ? __nla_validate_parse (lib/nlattr.c:635)
[   12.109091][  T386]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.109290][  T386]  ? __nla_parse (lib/nlattr.c:732)
[   12.109483][  T386]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   12.109690][  T386]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   12.109916][  T386]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.110107][  T386]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.110303][  T386]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.110498][  T386]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   12.110702][  T386]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   12.110924][  T386]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.111154][  T386]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   12.111343][  T386]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.111531][  T386]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   12.111733][  T386]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.111930][  T386]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   12.112120][  T386]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.112313][  T386]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   12.112503][  T386]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.112707][  T386]  ? 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))
[   12.112897][  T386]  ? 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))
[   12.113088][  T386]  genl_rcv (net/netlink/genetlink.c:1218)
[   12.113249][  T386]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.113439][  T386]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.113642][  T386]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.113834][  T386]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.114026][  T386]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.114224][  T386]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.114416][  T386]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.114623][  T386]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   12.114815][  T386]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   12.115016][  T386]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   12.115213][  T386]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.115440][  T386]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.115645][  T386]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.115836][  T386]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.116026][  T386]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.116221][  T386]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.116413][  T386]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.116650][  T386] RIP: 0033:0x7f5ccf3ec08e
[   12.116850][  T386] 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
[   12.117409][  T386] RSP: 002b:00007ffc21081440 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   12.117686][  T386] RAX: ffffffffffffffda RBX: 00000000398c0980 RCX: 00007f5ccf3ec08e
[   12.117947][  T386] RDX: 0000000000000038 RSI: 00000000398c0ba0 RDI: 0000000000000005
[   12.118218][  T386] RBP: 00007ffc21081450 R08: 00007f5ccf6a0980 R09: 000000000000000c
[   12.118477][  T386] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   12.118748][  T386] R13: 00000000398c0980 R14: 0000000000000000 R15: 0000000000000003
| [   12.174159][  T386] ------------[ cut here ]------------
| [   12.174339][  T386] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: devlink/386
| [   12.174647][  T386] Modules linked in: netdevsim
| [   12.175259][  T386] Tainted: [W]=WARN
[   12.175371][  T386] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.175559][  T386] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.175764][  T386] 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
[   12.176285][  T386] RSP: 0018:ffa0000000df7268 EFLAGS: 00010286
[   12.176471][  T386] RAX: 00000000ffffffa6 RBX: ff11000001f24c40 RCX: 1ff40000001bee13
[   12.176701][  T386] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000001f24cf0
[   12.176925][  T386] RBP: ff11000009542000 R08: 1fe22000003e499f R09: ff110000091c8bd0
[   12.177141][  T386] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
[   12.177366][  T386] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009542000
[   12.177592][  T386] FS:  00007f5ccf1b2840(0000) GS:ff1100009d605000(0000) knlGS:0000000000000000
[   12.177852][  T386] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.178034][  T386] CR2: 0000557aaf666868 CR3: 000000001237f001 CR4: 0000000000771ef0
[   12.178263][  T386] PKRU: 55555554
[   12.178373][  T386] Call Trace:
[   12.178483][  T386]  <TASK>
[   12.178558][  T386]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.178714][  T386]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.178829][  T386]  register_netdevice (net/core/dev.c:11488)
[   12.178977][  T386]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.179162][  T386]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   12.179313][  T386] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   12.179504][  T386] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   12.179658][  T386] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   12.179841][  T386]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   12.179992][  T386]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   12.180181][  T386]  ? 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))
[   12.180328][  T386]  ? static_obj (kernel/locking/lockdep.c:858)
[   12.180439][  T386]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.180593][  T386]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   12.180782][  T386] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   12.180968][  T386]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   12.181159][  T386]  devlink_reload (net/devlink/dev.c:475)
[   12.181307][  T386]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   12.181453][  T386]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   12.181691][  T386]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   12.181860][  T386]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   12.182040][  T386]  ? __nla_validate_parse (lib/nlattr.c:635)
[   12.182193][  T386]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.182341][  T386]  ? __nla_parse (lib/nlattr.c:732)
[   12.182488][  T386]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   12.182640][  T386]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   12.182822][  T386]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.183072][  T386]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.183223][  T386]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.183373][  T386]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   12.183518][  T386]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   12.183699][  T386]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.183879][  T386]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   12.184045][  T386]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.184205][  T386]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   12.184377][  T386]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.184545][  T386]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   12.184697][  T386]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.184842][  T386]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   12.185006][  T386]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.185165][  T386]  ? 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))
[   12.185314][  T386]  ? 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))
[   12.185466][  T386]  genl_rcv (net/netlink/genetlink.c:1218)
[   12.185587][  T386]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.185744][  T386]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.185898][  T386]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.186052][  T386]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.186214][  T386]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.186369][  T386]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.186527][  T386]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.186690][  T386]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   12.186849][  T386]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   12.187021][  T386]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   12.187179][  T386]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.187378][  T386]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.187536][  T386]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.187698][  T386]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.187851][  T386]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.188005][  T386]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.188162][  T386]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.188346][  T386] RIP: 0033:0x7f5ccf3ec08e
[   12.188501][  T386] 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
[   12.189047][  T386] RSP: 002b:00007ffc21081440 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   12.189275][  T386] RAX: ffffffffffffffda RBX: 00000000398c0980 RCX: 00007f5ccf3ec08e
[   12.189498][  T386] RDX: 0000000000000038 RSI: 00000000398c0ba0 RDI: 0000000000000005
[   12.189736][  T386] RBP: 00007ffc21081450 R08: 00007f5ccf6a0980 R09: 000000000000000c
[   12.189959][  T386] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   12.190411][  T386] R13: 00000000398c0980 R14: 0000000000000000 R15: 0000000000000003
| [   12.510497][  T402] ------------[ cut here ]------------
| [   12.510700][  T402] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/402
| [   12.511017][  T402] Modules linked in: netdevsim
| [   12.511497][  T402] Tainted: [W]=WARN
[   12.511619][  T402] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.511810][  T402] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.512010][  T402] 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
[   12.512555][  T402] RSP: 0018:ffa0000000e47310 EFLAGS: 00010286
[   12.512756][  T402] RAX: 00000000ffffffa6 RBX: ff11000008da70c0 RCX: 1ff40000001c8e28
[   12.512982][  T402] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008da7170
[   12.513211][  T402] RBP: ff11000009542000 R08: 1fe22000011b4e2f R09: ff11000009272ed0
[   12.513438][  T402] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[   12.513674][  T402] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[   12.513902][  T402] FS:  00007f4c70d89840(0000) GS:ff1100009d705000(0000) knlGS:0000000000000000
[   12.514179][  T402] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.514372][  T402] CR2: 00007f4c7133e004 CR3: 00000000158d9003 CR4: 0000000000771ef0
[   12.514606][  T402] PKRU: 55555554
[   12.514720][  T402] Call Trace:
[   12.514833][  T402]  <TASK>
[   12.514917][  T402]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[   12.515112][  T402]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   12.515305][  T402]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[   12.515462][  T402]  ? netdev_run_todo (net/core/dev.c:11703)
[   12.515618][  T402]  ? 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)
[   12.515774][  T402]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[   12.515925][  T402]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[   12.516077][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.516235][  T402]  ? unregister_netdevice_many (net/core/dev.c:12497)
[   12.516390][  T402] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[   12.516543][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.516700][  T402] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[   12.516891][  T402] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[   12.517081][  T402] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[   12.517278][  T402]  devlink_reload (net/devlink/dev.c:462)
[   12.517434][  T402]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   12.517592][  T402]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   12.517783][  T402]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   12.517934][  T402]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   12.518120][  T402]  ? __nla_validate_parse (lib/nlattr.c:635)
[   12.518312][  T402]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.518467][  T402]  ? __nla_parse (lib/nlattr.c:732)
[   12.518624][  T402]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   12.518774][  T402]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   12.518964][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.519112][  T402]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.519266][  T402]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.519419][  T402]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   12.519569][  T402]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   12.519759][  T402]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.519942][  T402]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   12.520088][  T402]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.520241][  T402]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   12.520388][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.520540][  T402]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   12.520748][  T402]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.520898][  T402]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   12.521047][  T402]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.521203][  T402]  ? 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))
[   12.521349][  T402]  ? 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))
[   12.521499][  T402]  genl_rcv (net/netlink/genetlink.c:1218)
[   12.521687][  T402]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.521835][  T402]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.522082][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.522235][  T402]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.522383][  T402]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.522532][  T402]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.522838][  T402]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.522986][  T402]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   12.523134][  T402]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   12.523296][  T402]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   12.523443][  T402]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.523666][  T402]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.523813][  T402]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.523958][  T402]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.524105][  T402]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.524257][  T402]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.524404][  T402]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.524605][  T402] RIP: 0033:0x7f4c70fc308e
[   12.524761][  T402] 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
[   12.525287][  T402] RSP: 002b:00007ffcf4fa9420 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   12.525508][  T402] RAX: ffffffffffffffda RBX: 000000001a670980 RCX: 00007f4c70fc308e
[   12.525733][  T402] RDX: 0000000000000038 RSI: 000000001a670ba0 RDI: 0000000000000005
[   12.525952][  T402] RBP: 00007ffcf4fa9430 R08: 00007f4c71277980 R09: 000000000000000c
[   12.526175][  T402] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   12.526395][  T402] R13: 000000001a670980 R14: 0000000000000000 R15: 0000000000000003
| [   12.562184][  T402] ------------[ cut here ]------------
| [   12.562364][  T402] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/402
| [   12.562744][  T402] Modules linked in: netdevsim
| [   12.563220][  T402] Tainted: [W]=WARN
[   12.563337][  T402] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.563528][  T402] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[   12.563797][  T402] 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
[   12.564335][  T402] RSP: 0018:ffa0000000e47268 EFLAGS: 00010286
[   12.564531][  T402] RAX: 00000000ffffffa6 RBX: ff1100000aadc7c0 RCX: 1ff40000001c8e13
[   12.564825][  T402] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000aadc870
[   12.565052][  T402] RBP: ff11000012d8a000 R08: 1fe220000155b90f R09: ff11000009272ed0
[   12.565284][  T402] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[   12.565510][  T402] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012d8a000
[   12.565807][  T402] FS:  00007f4c70d89840(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[   12.566074][  T402] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.566269][  T402] CR2: 00007f4c70d8c000 CR3: 00000000158d9001 CR4: 0000000000771ef0
[   12.566494][  T402] PKRU: 55555554
[   12.566676][  T402] Call Trace:
[   12.566790][  T402]  <TASK>
[   12.566870][  T402]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[   12.567024][  T402]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[   12.567138][  T402]  register_netdevice (net/core/dev.c:11488)
[   12.567295][  T402]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[   12.567482][  T402]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[   12.567714][  T402] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[   12.567925][  T402] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[   12.568076][  T402] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[   12.568266][  T402]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[   12.568417][  T402]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[   12.568611][  T402]  ? 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))
[   12.568760][  T402]  ? static_obj (kernel/locking/lockdep.c:858)
[   12.568874][  T402]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   12.569028][  T402]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[   12.569223][  T402] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[   12.569414][  T402]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[   12.569609][  T402]  devlink_reload (net/devlink/dev.c:475)
[   12.569762][  T402]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[   12.569911][  T402]  ? devlink_resources_validate (net/devlink/resource.c:471)
[   12.570100][  T402]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[   12.570251][  T402]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[   12.570437][  T402]  ? __nla_validate_parse (lib/nlattr.c:635)
[   12.570654][  T402]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.570804][  T402]  ? __nla_parse (lib/nlattr.c:732)
[   12.570957][  T402]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   12.571108][  T402]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   12.571304][  T402]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   12.571455][  T402]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.571669][  T402]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.571823][  T402]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   12.571973][  T402]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   12.572162][  T402]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[   12.572350][  T402]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[   12.572500][  T402]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[   12.572661][  T402]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[   12.572811][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.572962][  T402]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   12.573113][  T402]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[   12.573266][  T402]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   12.573417][  T402]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.573572][  T402]  ? 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))
[   12.573726][  T402]  ? 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))
[   12.573878][  T402]  genl_rcv (net/netlink/genetlink.c:1218)
[   12.573990][  T402]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.574141][  T402]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.574293][  T402]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   12.574445][  T402]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[   12.574601][  T402]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   12.574750][  T402]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.574900][  T402]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   12.575049][  T402]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   12.575204][  T402]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   12.575364][  T402]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   12.575513][  T402]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.575705][  T402]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   12.575860][  T402]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   12.576011][  T402]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   12.576166][  T402]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   12.576315][  T402]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   12.576466][  T402]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.576659][  T402] RIP: 0033:0x7f4c70fc308e
[   12.576819][  T402] 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
[   12.577353][  T402] RSP: 002b:00007ffcf4fa9420 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   12.577583][  T402] RAX: ffffffffffffffda RBX: 000000001a670980 RCX: 00007f4c70fc308e
[   12.577808][  T402] RDX: 0000000000000038 RSI: 000000001a670ba0 RDI: 0000000000000005
[   12.578035][  T402] RBP: 00007ffcf4fa9430 R08: 00007f4c71277980 R09: 000000000000000c
[   12.578265][  T402] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[   12.578490][  T402] R13: 000000001a670980 R14: 0000000000000000 R15: 0000000000000003
| [  273.550026][  T915] ------------[ cut here ]------------
| [  273.550324][  T915] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/915
| [  273.550815][  T915] Modules linked in: netdevsim
| [  273.551546][  T915] Tainted: [W]=WARN
[  273.551733][  T915] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  273.552022][  T915] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  273.552355][  T915] 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
[  273.553209][  T915] RSP: 0018:ffa0000001e77310 EFLAGS: 00010286
[  273.553527][  T915] RAX: 00000000ffffffa6 RBX: ff11000012162ac0 RCX: 1ff40000003cee28
[  273.553887][  T915] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000012162b70
[  273.554228][  T915] RBP: ff11000012d8a000 R08: 1fe220000242c56f R09: ff11000012220bd0
[  273.555183][  T915] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  273.555554][  T915] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  273.555921][  T915] FS:  00007f7e6509e840(0000) GS:ff1100009d705000(0000) knlGS:0000000000000000
[  273.556334][  T915] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  273.556636][  T915] CR2: 00007f7e65653004 CR3: 0000000004ccf003 CR4: 0000000000771ef0
[  273.556991][  T915] PKRU: 55555554
[  273.557171][  T915] Call Trace:
[  273.557358][  T915]  <TASK>
[  273.557484][  T915]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  273.557804][  T915]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  273.558100][  T915]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  273.558356][  T915]  ? netdev_run_todo (net/core/dev.c:11703)
[  273.558604][  T915]  ? 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)
[  273.558847][  T915]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  273.559081][  T915]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  273.559322][  T915]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  273.559562][  T915]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  273.559814][  T915] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  273.560056][  T915]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  273.560290][  T915] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  273.560608][  T915] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  273.560908][  T915] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  273.561203][  T915]  devlink_reload (net/devlink/dev.c:462)
[  273.561450][  T915]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  273.561698][  T915]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  273.562000][  T915]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  273.562238][  T915]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  273.562543][  T915]  ? __nla_validate_parse (lib/nlattr.c:635)
[  273.562795][  T915]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  273.563036][  T915]  ? __nla_parse (lib/nlattr.c:732)
[  273.563278][  T915]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  273.563520][  T915]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  273.563844][  T915]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  273.564082][  T915]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  273.564329][  T915]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  273.564587][  T915]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  273.564828][  T915]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  273.565119][  T915]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  273.565421][  T915]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  273.565669][  T915]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  273.565896][  T915]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  273.566134][  T915]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  273.566386][  T915]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  273.566641][  T915]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  273.566877][  T915]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  273.567117][  T915]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  273.567369][  T915]  ? 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))
[  273.567621][  T915]  ? 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))
[  273.567864][  T915]  genl_rcv (net/netlink/genetlink.c:1218)
[  273.568048][  T915]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  273.568287][  T915]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  273.568529][  T915]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  273.568785][  T915]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  273.569026][  T915]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  273.569267][  T915]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  273.569508][  T915]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  273.569757][  T915]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  273.569996][  T915]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  273.570259][  T915]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  273.570505][  T915]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  273.570814][  T915]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  273.571053][  T915]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  273.571290][  T915]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  273.571530][  T915]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  273.571781][  T915]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  273.572010][  T915]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  273.572306][  T915] RIP: 0033:0x7f7e652d808e
[  273.572561][  T915] 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
[  273.573427][  T915] RSP: 002b:00007ffdca0e2cd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  273.573794][  T915] RAX: ffffffffffffffda RBX: 0000000025d53980 RCX: 00007f7e652d808e
[  273.574157][  T915] RDX: 0000000000000038 RSI: 0000000025d53ba0 RDI: 0000000000000005
[  273.574527][  T915] RBP: 00007ffdca0e2ce0 R08: 00007f7e6558c980 R09: 000000000000000c
[  273.574895][  T915] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  273.575248][  T915] R13: 0000000025d53980 R14: 0000000000000000 R15: 0000000000000003
| [  273.654314][  T915] ------------[ cut here ]------------
| [  273.654712][  T915] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/915
| [  273.655266][  T915] Modules linked in: netdevsim
| [  273.656149][  T915] Tainted: [W]=WARN
[  273.656397][  T915] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  273.656783][  T915] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  273.657157][  T915] 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
[  273.658088][  T915] RSP: 0018:ffa0000001e77268 EFLAGS: 00010286
[  273.658455][  T915] RAX: 00000000ffffffa6 RBX: ff1100000a8ec4c0 RCX: 1ff40000003cee13
[  273.658882][  T915] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a8ec570
[  273.659288][  T915] RBP: ff110000136a2000 R08: 1fe220000151d8af R09: ff11000012220bd0
[  273.659734][  T915] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  273.660148][  T915] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000136a2000
[  273.660573][  T915] FS:  00007f7e6509e840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[  273.661070][  T915] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  273.661436][  T915] CR2: 0000557a810c9d5c CR3: 0000000004ccf004 CR4: 0000000000771ef0
[  273.661879][  T915] PKRU: 55555554
[  273.662116][  T915] Call Trace:
[  273.662361][  T915]  <TASK>
[  273.662543][  T915]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  273.662960][  T915]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  273.663216][  T915]  register_netdevice (net/core/dev.c:11488)
[  273.663517][  T915]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  273.663917][  T915]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  273.664276][  T915] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  273.664664][  T915] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  273.664973][  T915] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  273.665340][  T915]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  273.665658][  T915]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  273.666015][  T915]  ? 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))
[  273.666326][  T915]  ? static_obj (kernel/locking/lockdep.c:858)
[  273.666568][  T915]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  273.666890][  T915]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  273.667248][  T915] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  273.667651][  T915]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  273.668068][  T915]  devlink_reload (net/devlink/dev.c:475)
[  273.669054][  T915]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  273.669545][  T915]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  273.669931][  T915]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  273.670424][  T915]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  273.670812][  T915]  ? __nla_validate_parse (lib/nlattr.c:635)
[  273.671116][  T915]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  273.671426][  T915]  ? __nla_parse (lib/nlattr.c:732)
[  273.671756][  T915]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  273.672054][  T915]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  273.672642][  T915]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  273.672923][  T915]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  273.673205][  T915]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  273.673502][  T915]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  273.673822][  T915]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  273.674171][  T915]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  273.674543][  T915]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  273.674857][  T915]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  273.675340][  T915]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  273.675654][  T915]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  273.676132][  T915]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  273.676441][  T915]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  273.676760][  T915]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  273.677235][  T915]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  273.677747][  T915]  ? 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))
[  273.678030][  T915]  ? 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))
[  273.678335][  T915]  genl_rcv (net/netlink/genetlink.c:1218)
[  273.678596][  T915]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  273.678895][  T915]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  273.679564][  T915]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  273.679886][  T915]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  273.680183][  T915]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  273.680483][  T915]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  273.680815][  T915]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  273.681124][  T915]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  273.681463][  T915]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  273.682201][  T915]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  273.682529][  T915]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  273.683112][  T915]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  273.683428][  T915]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  273.683777][  T915]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  273.684093][  T915]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  273.684416][  T915]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  273.685124][  T915]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  273.685502][  T915] RIP: 0033:0x7f7e652d808e
[  273.685824][  T915] 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
[  273.686821][  T915] RSP: 002b:00007ffdca0e2cd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  273.687260][  T915] RAX: ffffffffffffffda RBX: 0000000025d53980 RCX: 00007f7e652d808e
[  273.687727][  T915] RDX: 0000000000000038 RSI: 0000000025d53ba0 RDI: 0000000000000005
[  273.688148][  T915] RBP: 00007ffdca0e2ce0 R08: 00007f7e6558c980 R09: 000000000000000c
[  273.688601][  T915] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  273.689032][  T915] R13: 0000000025d53980 R14: 0000000000000000 R15: 0000000000000003
| [  274.064500][  T929] ------------[ cut here ]------------
| [  274.064716][  T929] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/929
| [  274.065032][  T929] Modules linked in: netdevsim
| [  274.065515][  T929] Tainted: [W]=WARN
[  274.065640][  T929] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  274.065832][  T929] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  274.066030][  T929] 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
[  274.066568][  T929] RSP: 0018:ffa0000001ef7310 EFLAGS: 00010286
[  274.066774][  T929] RAX: 00000000ffffffa6 RBX: ff11000008ee8f40 RCX: 1ff40000003dee28
[  274.067010][  T929] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000008ee8ff0
[  274.067266][  T929] RBP: ff110000136a2000 R08: 1fe22000011dd1ff R09: ff11000012222ed0
[  274.067529][  T929] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[  274.067779][  T929] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  274.068035][  T929] FS:  00007f044bd84840(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[  274.068318][  T929] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.068511][  T929] CR2: 00007f044c339004 CR3: 0000000012f80001 CR4: 0000000000771ef0
[  274.068824][  T929] PKRU: 55555554
[  274.068938][  T929] Call Trace:
[  274.069051][  T929]  <TASK>
[  274.069131][  T929]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  274.069333][  T929]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  274.069525][  T929]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  274.069760][  T929]  ? netdev_run_todo (net/core/dev.c:11703)
[  274.069910][  T929]  ? 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)
[  274.070062][  T929]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  274.070211][  T929]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  274.070366][  T929]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.070518][  T929]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  274.070754][  T929] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  274.070906][  T929]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.071061][  T929] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  274.071249][  T929] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  274.071443][  T929] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  274.071751][  T929]  devlink_reload (net/devlink/dev.c:462)
[  274.071905][  T929]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  274.072056][  T929]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  274.072244][  T929]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  274.072398][  T929]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  274.072754][  T929]  ? __nla_validate_parse (lib/nlattr.c:635)
[  274.072906][  T929]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.073055][  T929]  ? __nla_parse (lib/nlattr.c:732)
[  274.073208][  T929]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  274.073366][  T929]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  274.073557][  T929]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.073753][  T929]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  274.073903][  T929]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  274.074056][  T929]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  274.074207][  T929]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  274.074399][  T929]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  274.074594][  T929]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  274.074745][  T929]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.074895][  T929]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  274.075046][  T929]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.075199][  T929]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  274.075350][  T929]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  274.075499][  T929]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  274.075659][  T929]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  274.075813][  T929]  ? 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))
[  274.075963][  T929]  ? 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))
[  274.076113][  T929]  genl_rcv (net/netlink/genetlink.c:1218)
[  274.076224][  T929]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  274.076379][  T929]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  274.076528][  T929]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.076688][  T929]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  274.076837][  T929]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  274.076988][  T929]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.077142][  T929]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.077292][  T929]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  274.077448][  T929]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  274.077632][  T929]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  274.077782][  T929]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  274.077971][  T929]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  274.078122][  T929]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  274.078271][  T929]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  274.078421][  T929]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  274.078570][  T929]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  274.078727][  T929]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  274.078915][  T929] RIP: 0033:0x7f044bfbe08e
[  274.079077][  T929] 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
[  274.079624][  T929] RSP: 002b:00007ffd34f39750 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  274.079854][  T929] RAX: ffffffffffffffda RBX: 000000002ca70980 RCX: 00007f044bfbe08e
[  274.080082][  T929] RDX: 0000000000000038 RSI: 000000002ca70ba0 RDI: 0000000000000005
[  274.080308][  T929] RBP: 00007ffd34f39760 R08: 00007f044c272980 R09: 000000000000000c
[  274.080533][  T929] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  274.080768][  T929] R13: 000000002ca70980 R14: 0000000000000000 R15: 0000000000000003
| [  274.131554][  T929] ------------[ cut here ]------------
| [  274.132027][  T929] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/929
| [  274.132539][  T929] Modules linked in: netdevsim
| [  274.133224][  T929] Tainted: [W]=WARN
[  274.133402][  T929] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  274.133702][  T929] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  274.134017][  T929] 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
[  274.134901][  T929] RSP: 0018:ffa0000001ef7268 EFLAGS: 00010286
[  274.135196][  T929] RAX: 00000000ffffffa6 RBX: ff1100000aaade40 RCX: 1ff40000003dee13
[  274.135517][  T929] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000aaadef0
[  274.135843][  T929] RBP: ff11000012e1a000 R08: 1fe2200001555bdf R09: ff11000012222ed0
[  274.136177][  T929] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  274.136515][  T929] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012e1a000
[  274.136836][  T929] FS:  00007f044bd84840(0000) GS:ff1100009d705000(0000) knlGS:0000000000000000
[  274.137205][  T929] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.137477][  T929] CR2: 00007f151c4d89dc CR3: 0000000012f80005 CR4: 0000000000771ef0
[  274.137825][  T929] PKRU: 55555554
[  274.137989][  T929] Call Trace:
[  274.138164][  T929]  <TASK>
[  274.138292][  T929]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  274.138551][  T929]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  274.138747][  T929]  register_netdevice (net/core/dev.c:11488)
[  274.138993][  T929]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  274.139256][  T929]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  274.139498][  T929] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  274.139785][  T929] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  274.140015][  T929] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  274.140272][  T929]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  274.140493][  T929]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  274.140785][  T929]  ? 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))
[  274.140996][  T929]  ? static_obj (kernel/locking/lockdep.c:858)
[  274.141163][  T929]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  274.141394][  T929]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  274.141672][  T929] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  274.141952][  T929]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  274.142256][  T929]  devlink_reload (net/devlink/dev.c:475)
[  274.142507][  T929]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  274.142761][  T929]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  274.143072][  T929]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  274.143312][  T929]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  274.143585][  T929]  ? __nla_validate_parse (lib/nlattr.c:635)
[  274.143819][  T929]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.144031][  T929]  ? __nla_parse (lib/nlattr.c:732)
[  274.144267][  T929]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  274.144486][  T929]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  274.144774][  T929]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.144996][  T929]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  274.145209][  T929]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  274.145448][  T929]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  274.145668][  T929]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  274.145956][  T929]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  274.146267][  T929]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  274.146516][  T929]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.146748][  T929]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  274.146973][  T929]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.147194][  T929]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  274.147405][  T929]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  274.147621][  T929]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  274.147855][  T929]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  274.148065][  T929]  ? 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))
[  274.148275][  T929]  ? 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))
[  274.148518][  T929]  genl_rcv (net/netlink/genetlink.c:1218)
[  274.148695][  T929]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  274.148915][  T929]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  274.149127][  T929]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.149377][  T929]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  274.149634][  T929]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  274.149881][  T929]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.150123][  T929]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.150340][  T929]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  274.150570][  T929]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  274.150800][  T929]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  274.151027][  T929]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  274.151304][  T929]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  274.151536][  T929]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  274.151794][  T929]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  274.152020][  T929]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  274.152264][  T929]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  274.152518][  T929]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  274.152829][  T929] RIP: 0033:0x7f044bfbe08e
[  274.153058][  T929] 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
[  274.153869][  T929] RSP: 002b:00007ffd34f39750 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  274.154210][  T929] RAX: ffffffffffffffda RBX: 000000002ca70980 RCX: 00007f044bfbe08e
[  274.154546][  T929] RDX: 0000000000000038 RSI: 000000002ca70ba0 RDI: 0000000000000005
[  274.154907][  T929] RBP: 00007ffd34f39760 R08: 00007f044c272980 R09: 000000000000000c
[  274.155272][  T929] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  274.155615][  T929] R13: 000000002ca70980 R14: 0000000000000000 R15: 0000000000000003
| [  274.653428][  T961] ------------[ cut here ]------------
| [  274.654499][  T961] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/961
| [  274.654822][  T961] Modules linked in: netdevsim
| [  274.655288][  T961] Tainted: [W]=WARN
[  274.655429][  T961] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  274.655625][  T961] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  274.655824][  T961] 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
[  274.656429][  T961] RSP: 0018:ffa0000001fa7310 EFLAGS: 00010286
[  274.656632][  T961] RAX: 00000000ffffffa6 RBX: ff1100000a8ec7c0 RCX: 1ff40000003f4e28
[  274.656860][  T961] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a8ec870
[  274.657088][  T961] RBP: ff11000012e1a000 R08: 1fe220000151d90f R09: ff11000004d38bd0
[  274.657321][  T961] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[  274.657613][  T961] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  274.657843][  T961] FS:  00007f93cb819840(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[  274.658109][  T961] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.658302][  T961] CR2: 00007f93cbdce004 CR3: 000000001340b002 CR4: 0000000000771ef0
[  274.658555][  T961] PKRU: 55555554
[  274.658676][  T961] Call Trace:
[  274.658790][  T961]  <TASK>
[  274.658868][  T961]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  274.659063][  T961]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  274.659250][  T961]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  274.659413][  T961]  ? netdev_run_todo (net/core/dev.c:11703)
[  274.659564][  T961]  ? 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)
[  274.659725][  T961]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  274.659874][  T961]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  274.660024][  T961]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.660174][  T961]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  274.660343][  T961] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  274.660495][  T961]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.660652][  T961] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  274.660842][  T961] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  274.661032][  T961] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  274.661282][  T961]  devlink_reload (net/devlink/dev.c:462)
[  274.661445][  T961]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  274.661603][  T961]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  274.661795][  T961]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  274.661949][  T961]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  274.662136][  T961]  ? __nla_validate_parse (lib/nlattr.c:635)
[  274.662289][  T961]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.662449][  T961]  ? __nla_parse (lib/nlattr.c:732)
[  274.662612][  T961]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  274.662768][  T961]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  274.662958][  T961]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.663118][  T961]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  274.663333][  T961]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  274.663487][  T961]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  274.663647][  T961]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  274.663839][  T961]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  274.664026][  T961]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  274.664179][  T961]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.664333][  T961]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  274.664484][  T961]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.664646][  T961]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  274.664797][  T961]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  274.664946][  T961]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  274.665096][  T961]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  274.665298][  T961]  ? 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))
[  274.665536][  T961]  ? 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))
[  274.665786][  T961]  genl_rcv (net/netlink/genetlink.c:1218)
[  274.665952][  T961]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  274.666106][  T961]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  274.666256][  T961]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.666415][  T961]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  274.666566][  T961]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  274.666724][  T961]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.666878][  T961]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.667029][  T961]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  274.667179][  T961]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  274.667349][  T961]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  274.667499][  T961]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  274.667695][  T961]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  274.667844][  T961]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  274.667993][  T961]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  274.668142][  T961]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  274.668291][  T961]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  274.668467][  T961]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  274.668693][  T961] RIP: 0033:0x7f93cba5308e
[  274.668930][  T961] 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
[  274.669625][  T961] RSP: 002b:00007ffcb92bf370 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  274.669856][  T961] RAX: ffffffffffffffda RBX: 000000001f412980 RCX: 00007f93cba5308e
[  274.670088][  T961] RDX: 0000000000000038 RSI: 000000001f412ba0 RDI: 0000000000000005
[  274.670322][  T961] RBP: 00007ffcb92bf380 R08: 00007f93cbd07980 R09: 000000000000000c
[  274.670547][  T961] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  274.670779][  T961] R13: 000000001f412980 R14: 0000000000000000 R15: 0000000000000003
| [  274.735084][  T961] ------------[ cut here ]------------
| [  274.735283][  T961] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: devlink/961
| [  274.735609][  T961] Modules linked in: netdevsim
| [  274.736083][  T961] Tainted: [W]=WARN
[  274.736200][  T961] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  274.736400][  T961] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  274.736606][  T961] 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
[  274.737147][  T961] RSP: 0018:ffa0000001fa7268 EFLAGS: 00010286
[  274.737352][  T961] RAX: 00000000ffffffa6 RBX: ff1100000a8ecf40 RCX: 1ff40000003f4e13
[  274.737589][  T961] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a8ecff0
[  274.737819][  T961] RBP: ff1100001527a000 R08: 1fe220000151d9ff R09: ff11000004d38bd0
[  274.738049][  T961] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[  274.738285][  T961] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100001527a000
[  274.738528][  T961] FS:  00007f93cb819840(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[  274.738801][  T961] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.738995][  T961] CR2: 00007f93cbdce004 CR3: 000000001340b002 CR4: 0000000000771ef0
[  274.739227][  T961] PKRU: 55555554
[  274.739346][  T961] Call Trace:
[  274.739461][  T961]  <TASK>
[  274.739549][  T961]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  274.739708][  T961]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  274.739824][  T961]  register_netdevice (net/core/dev.c:11488)
[  274.739977][  T961]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  274.740166][  T961]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  274.740329][  T961] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  274.740526][  T961] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  274.740690][  T961] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  274.740878][  T961]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  274.741031][  T961]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  274.741221][  T961]  ? 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))
[  274.741378][  T961]  ? static_obj (kernel/locking/lockdep.c:858)
[  274.741494][  T961]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  274.741655][  T961]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  274.741851][  T961] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  274.742041][  T961]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  274.742230][  T961]  devlink_reload (net/devlink/dev.c:475)
[  274.742388][  T961]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  274.742541][  T961]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  274.742738][  T961]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  274.742890][  T961]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  274.743077][  T961]  ? __nla_validate_parse (lib/nlattr.c:635)
[  274.743230][  T961]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.743389][  T961]  ? __nla_parse (lib/nlattr.c:732)
[  274.743544][  T961]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  274.743703][  T961]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  274.743896][  T961]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  274.744049][  T961]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  274.744201][  T961]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  274.744359][  T961]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  274.744513][  T961]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  274.744704][  T961]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  274.744893][  T961]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  274.745045][  T961]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  274.745196][  T961]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  274.745381][  T961]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.745537][  T961]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  274.745696][  T961]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  274.745848][  T961]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  274.746004][  T961]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  274.746160][  T961]  ? 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))
[  274.746321][  T961]  ? 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))
[  274.746476][  T961]  genl_rcv (net/netlink/genetlink.c:1218)
[  274.746596][  T961]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  274.746753][  T961]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  274.746906][  T961]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  274.747061][  T961]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  274.747214][  T961]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  274.747376][  T961]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.747531][  T961]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  274.747691][  T961]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  274.747846][  T961]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  274.748010][  T961]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  274.748162][  T961]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  274.748358][  T961]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  274.748514][  T961]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  274.748674][  T961]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  274.748827][  T961]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  274.748980][  T961]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  274.749134][  T961]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  274.749329][  T961] RIP: 0033:0x7f93cba5308e
[  274.749490][  T961] 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
[  274.750041][  T961] RSP: 002b:00007ffcb92bf370 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  274.750273][  T961] RAX: ffffffffffffffda RBX: 000000001f412980 RCX: 00007f93cba5308e
[  274.750506][  T961] RDX: 0000000000000038 RSI: 000000001f412ba0 RDI: 0000000000000005
[  274.750742][  T961] RBP: 00007ffcb92bf380 R08: 00007f93cbd07980 R09: 000000000000000c
[  274.750971][  T961] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  274.751201][  T961] R13: 000000001f412980 R14: 0000000000000000 R15: 0000000000000003
| [  275.109773][  T979] ------------[ cut here ]------------
| [  275.110030][  T979] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/979
| [  275.110395][  T979] Modules linked in: netdevsim
| [  275.111694][  T979] Tainted: [W]=WARN
[  275.111855][  T979] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  275.112092][  T979] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  275.112348][  T979] 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
[  275.112938][  T979] RSP: 0018:ffa0000002027310 EFLAGS: 00010286
[  275.113177][  T979] RAX: 00000000ffffffa6 RBX: ff11000015928f40 RCX: 1ff4000000404e28
[  275.113457][  T979] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000015928ff0
[  275.113740][  T979] RBP: ff1100001527a000 R08: 1fe2200002b251ff R09: ff1100001221aed0
[  275.114009][  T979] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  275.114279][  T979] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  275.114561][  T979] FS:  00007ff28b37e840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[  275.114888][  T979] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  275.115125][  T979] CR2: 00007ff28b933004 CR3: 00000000159f9006 CR4: 0000000000771ef0
[  275.115407][  T979] PKRU: 55555554
[  275.115567][  T979] Call Trace:
[  275.115741][  T979]  <TASK>
[  275.115868][  T979]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  275.116111][  T979]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  275.116352][  T979]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  275.116556][  T979]  ? netdev_run_todo (net/core/dev.c:11703)
[  275.116768][  T979]  ? 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)
[  275.116968][  T979]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  275.117166][  T979]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  275.117377][  T979]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  275.117592][  T979]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  275.117805][  T979] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  275.118013][  T979]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  275.118213][  T979] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  275.118458][  T979] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  275.118707][  T979] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  275.118942][  T979]  devlink_reload (net/devlink/dev.c:462)
[  275.119146][  T979]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  275.119352][  T979]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  275.119605][  T979]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  275.119802][  T979]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  275.120034][  T979]  ? __nla_validate_parse (lib/nlattr.c:635)
[  275.120233][  T979]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  275.120439][  T979]  ? __nla_parse (lib/nlattr.c:732)
[  275.120657][  T979]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  275.120858][  T979]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  275.121093][  T979]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  275.121292][  T979]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  275.121500][  T979]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  275.121713][  T979]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  275.121911][  T979]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  275.122146][  T979]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  275.122388][  T979]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  275.122598][  T979]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  275.122796][  T979]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  275.122993][  T979]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  275.123197][  T979]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  275.123404][  T979]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  275.123618][  T979]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  275.123817][  T979]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  275.124018][  T979]  ? 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))
[  275.124215][  T979]  ? 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))
[  275.124424][  T979]  genl_rcv (net/netlink/genetlink.c:1218)
[  275.124599][  T979]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  275.124797][  T979]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  275.124996][  T979]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  275.125195][  T979]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  275.125399][  T979]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  275.125610][  T979]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  275.125809][  T979]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  275.126008][  T979]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  275.126209][  T979]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  275.126427][  T979]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  275.126642][  T979]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  275.126877][  T979]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  275.127076][  T979]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  275.127274][  T979]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  275.127475][  T979]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  275.127686][  T979]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  275.127884][  T979]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  275.128121][  T979] RIP: 0033:0x7ff28b5b808e
[  275.128331][  T979] 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
[  275.128920][  T979] RSP: 002b:00007ffdc479cc60 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  275.129195][  T979] RAX: ffffffffffffffda RBX: 00000000207c7980 RCX: 00007ff28b5b808e
[  275.129477][  T979] RDX: 0000000000000038 RSI: 00000000207c7ba0 RDI: 0000000000000005
[  275.129765][  T979] RBP: 00007ffdc479cc70 R08: 00007ff28b86c980 R09: 000000000000000c
[  275.130034][  T979] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  275.130304][  T979] R13: 00000000207c7980 R14: 0000000000000000 R15: 0000000000000003
| [  275.173192][  T979] ------------[ cut here ]------------
| [  275.173449][  T979] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/979
| [  275.174250][  T979] Modules linked in: netdevsim
| [  275.174860][  T979] Tainted: [W]=WARN
[  275.175028][  T979] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  275.175269][  T979] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  275.175538][  T979] 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
[  275.176167][  T979] RSP: 0018:ffa0000002027268 EFLAGS: 00010286
[  275.176438][  T979] RAX: 00000000ffffffa6 RBX: ff1100000aaad9c0 RCX: 1ff4000000404e13
[  275.176747][  T979] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000aaada70
[  275.177024][  T979] RBP: ff110000135ca000 R08: 1fe2200001555b4f R09: ff1100001221aed0
[  275.177299][  T979] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  275.177669][  T979] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000135ca000
[  275.178024][  T979] FS:  00007ff28b37e840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[  275.178360][  T979] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  275.178614][  T979] CR2: 00007ff28b933004 CR3: 00000000159f9006 CR4: 0000000000771ef0
[  275.178893][  T979] PKRU: 55555554
[  275.179056][  T979] Call Trace:
[  275.179222][  T979]  <TASK>
[  275.179357][  T979]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  275.179564][  T979]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  275.179746][  T979]  register_netdevice (net/core/dev.c:11488)
[  275.179952][  T979]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  275.180190][  T979]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  275.180400][  T979] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  275.180664][  T979] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  275.180869][  T979] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  275.181108][  T979]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  275.181319][  T979]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  275.181560][  T979]  ? 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))
[  275.181775][  T979]  ? static_obj (kernel/locking/lockdep.c:858)
[  275.181940][  T979]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  275.182149][  T979]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  275.182399][  T979] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  275.182655][  T979]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  275.182894][  T979]  devlink_reload (net/devlink/dev.c:475)
[  275.183097][  T979]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  275.183296][  T979]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  275.183548][  T979]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  275.183765][  T979]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  275.184000][  T979]  ? __nla_validate_parse (lib/nlattr.c:635)
[  275.184204][  T979]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  275.184415][  T979]  ? __nla_parse (lib/nlattr.c:732)
[  275.184634][  T979]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  275.184838][  T979]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  275.185081][  T979]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  275.185282][  T979]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  275.185493][  T979]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  275.185713][  T979]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  275.185915][  T979]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  275.186150][  T979]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  275.186397][  T979]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  275.186612][  T979]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  275.186813][  T979]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  275.187014][  T979]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  275.187218][  T979]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  275.187427][  T979]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  275.187647][  T979]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  275.187848][  T979]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  275.188059][  T979]  ? 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))
[  275.188258][  T979]  ? 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))
[  275.188471][  T979]  genl_rcv (net/netlink/genetlink.c:1218)
[  275.188649][  T979]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  275.188851][  T979]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  275.189050][  T979]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  275.189256][  T979]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  275.189471][  T979]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  275.189690][  T979]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  275.189895][  T979]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  275.190095][  T979]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  275.190300][  T979]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  275.190520][  T979]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  275.190738][  T979]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  275.190978][  T979]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  275.191183][  T979]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  275.191392][  T979]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  275.191607][  T979]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  275.191809][  T979]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  275.192013][  T979]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  275.192249][  T979] RIP: 0033:0x7ff28b5b808e
[  275.192466][  T979] 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
[  275.193071][  T979] RSP: 002b:00007ffdc479cc60 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  275.193357][  T979] RAX: ffffffffffffffda RBX: 00000000207c7980 RCX: 00007ff28b5b808e
[  275.193647][  T979] RDX: 0000000000000038 RSI: 00000000207c7ba0 RDI: 0000000000000005
[  275.193924][  T979] RBP: 00007ffdc479cc70 R08: 00007ff28b86c980 R09: 000000000000000c
[  275.194196][  T979] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  275.194473][  T979] R13: 00000000207c7980 R14: 0000000000000000 R15: 0000000000000003
| [  276.349493][ T1071] ------------[ cut here ]------------
| [  276.349748][ T1071] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/1071
| [  276.350105][ T1071] Modules linked in: netdevsim
| [  276.350707][ T1071] Tainted: [W]=WARN
[  276.350870][ T1071] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  276.351107][ T1071] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  276.351362][ T1071] 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
[  276.351950][ T1071] RSP: 0018:ffa0000002287310 EFLAGS: 00010286
[  276.352190][ T1071] RAX: 00000000ffffffa6 RBX: ff11000004a333c0 RCX: 1ff4000000450e28
[  276.352470][ T1071] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004a33470
[  276.353187][ T1071] RBP: ff110000135ca000 R08: 1fe220000094668f R09: ff11000004ba2ed0
[  276.353469][ T1071] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  276.353755][ T1071] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  276.354030][ T1071] FS:  00007fe7da748840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[  276.354352][ T1071] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  276.354604][ T1071] CR2: 00007fe7dacfd004 CR3: 00000000122f7006 CR4: 0000000000771ef0
[  276.354881][ T1071] PKRU: 55555554
[  276.355042][ T1071] Call Trace:
[  276.355204][ T1071]  <TASK>
[  276.355337][ T1071]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  276.355593][ T1071]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  276.355824][ T1071]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  276.356027][ T1071]  ? netdev_run_todo (net/core/dev.c:11703)
[  276.356227][ T1071]  ? 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)
[  276.356440][ T1071]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  276.356653][ T1071]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  276.356850][ T1071]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.357066][ T1071]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  276.357269][ T1071] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  276.357483][ T1071]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.357701][ T1071] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  276.357940][ T1071] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  276.358180][ T1071] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  276.358427][ T1071]  devlink_reload (net/devlink/dev.c:462)
[  276.358645][ T1071]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  276.358849][ T1071]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  276.359091][ T1071]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  276.359290][ T1071]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  276.359534][ T1071]  ? __nla_validate_parse (lib/nlattr.c:635)
[  276.359749][ T1071]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.359950][ T1071]  ? __nla_parse (lib/nlattr.c:732)
[  276.360154][ T1071]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  276.360363][ T1071]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  276.360614][ T1071]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.360819][ T1071]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  276.361027][ T1071]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  276.361234][ T1071]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  276.361443][ T1071]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  276.361691][ T1071]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  276.361928][ T1071]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  276.362127][ T1071]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.362334][ T1071]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  276.362538][ T1071]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.362755][ T1071]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  276.362959][ T1071]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  276.363154][ T1071]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  276.363364][ T1071]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  276.363569][ T1071]  ? 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))
[  276.363781][ T1071]  ? 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))
[  276.363983][ T1071]  genl_rcv (net/netlink/genetlink.c:1218)
[  276.364146][ T1071]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  276.364358][ T1071]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  276.364555][ T1071]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.364772][ T1071]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  276.364974][ T1071]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  276.365174][ T1071]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.365384][ T1071]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.365599][ T1071]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  276.365801][ T1071]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  276.366010][ T1071]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  276.366209][ T1071]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  276.366454][ T1071]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  276.366670][ T1071]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  276.366868][ T1071]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  276.367066][ T1071]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  276.367267][ T1071]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  276.367477][ T1071]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  276.367726][ T1071] RIP: 0033:0x7fe7da98208e
[  276.367936][ T1071] 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
[  276.368522][ T1071] RSP: 002b:00007ffc8abafd90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  276.368812][ T1071] RAX: ffffffffffffffda RBX: 0000000024fb8980 RCX: 00007fe7da98208e
[  276.369084][ T1071] RDX: 0000000000000038 RSI: 0000000024fb8ba0 RDI: 0000000000000005
[  276.369364][ T1071] RBP: 00007ffc8abafda0 R08: 00007fe7dac36980 R09: 000000000000000c
[  276.369654][ T1071] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  276.369927][ T1071] R13: 0000000024fb8980 R14: 0000000000000000 R15: 0000000000000003
| [  276.414547][ T1071] ------------[ cut here ]------------
| [  276.414904][ T1071] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/1071
| [  276.415337][ T1071] Modules linked in: netdevsim
| [  276.416070][ T1071] Tainted: [W]=WARN
[  276.416304][ T1071] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  276.416633][ T1071] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  276.416961][ T1071] 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
[  276.417642][ T1071] RSP: 0018:ffa0000002287268 EFLAGS: 00010286
[  276.417948][ T1071] RAX: 00000000ffffffa6 RBX: ff11000012163240 RCX: 1ff4000000450e13
[  276.418285][ T1071] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000121632f0
[  276.418643][ T1071] RBP: ff11000012d2a000 R08: 1fe220000242c65f R09: ff11000004ba2ed0
[  276.418986][ T1071] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  276.419334][ T1071] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012d2a000
[  276.419686][ T1071] FS:  00007fe7da748840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[  276.420032][ T1071] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  276.420267][ T1071] CR2: 00007fe7dacfd004 CR3: 00000000122f7006 CR4: 0000000000771ef0
[  276.420554][ T1071] PKRU: 55555554
[  276.420731][ T1071] Call Trace:
[  276.420893][ T1071]  <TASK>
[  276.421020][ T1071]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  276.421225][ T1071]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  276.421397][ T1071]  register_netdevice (net/core/dev.c:11488)
[  276.421612][ T1071]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  276.421855][ T1071]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  276.422059][ T1071] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  276.422303][ T1071] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  276.422513][ T1071] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  276.422764][ T1071]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  276.422965][ T1071]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  276.423205][ T1071]  ? 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))
[  276.423418][ T1071]  ? static_obj (kernel/locking/lockdep.c:858)
[  276.423597][ T1071]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  276.423803][ T1071]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  276.424046][ T1071] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  276.424285][ T1071]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  276.424532][ T1071]  devlink_reload (net/devlink/dev.c:475)
[  276.424749][ T1071]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  276.424953][ T1071]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  276.425193][ T1071]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  276.425403][ T1071]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  276.425653][ T1071]  ? __nla_validate_parse (lib/nlattr.c:635)
[  276.425855][ T1071]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.426058][ T1071]  ? __nla_parse (lib/nlattr.c:732)
[  276.426267][ T1071]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  276.426479][ T1071]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  276.426731][ T1071]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.426933][ T1071]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  276.427132][ T1071]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  276.427342][ T1071]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  276.427543][ T1071]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  276.427794][ T1071]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  276.428029][ T1071]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  276.428226][ T1071]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.428432][ T1071]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  276.428646][ T1071]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.428848][ T1071]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  276.429049][ T1071]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  276.429253][ T1071]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  276.429460][ T1071]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  276.429676][ T1071]  ? 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))
[  276.429874][ T1071]  ? 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))
[  276.430078][ T1071]  genl_rcv (net/netlink/genetlink.c:1218)
[  276.430240][ T1071]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  276.430450][ T1071]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  276.430671][ T1071]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.430874][ T1071]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  276.431076][ T1071]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  276.431276][ T1071]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.431483][ T1071]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.431697][ T1071]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  276.431898][ T1071]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  276.432109][ T1071]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  276.432313][ T1071]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  276.432680][ T1071]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  276.432879][ T1071]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  276.433078][ T1071]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  276.433279][ T1071]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  276.433605][ T1071]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  276.433809][ T1071]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  276.434051][ T1071] RIP: 0033:0x7fe7da98208e
[  276.434260][ T1071] 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
[  276.434970][ T1071] RSP: 002b:00007ffc8abafd90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  276.435361][ T1071] RAX: ffffffffffffffda RBX: 0000000024fb8980 RCX: 00007fe7da98208e
[  276.435653][ T1071] RDX: 0000000000000038 RSI: 0000000024fb8ba0 RDI: 0000000000000005
[  276.435925][ T1071] RBP: 00007ffc8abafda0 R08: 00007fe7dac36980 R09: 000000000000000c
[  276.436303][ T1071] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  276.436595][ T1071] R13: 0000000024fb8980 R14: 0000000000000000 R15: 0000000000000003
| [  276.734474][ T1084] ------------[ cut here ]------------
| [  276.734673][ T1084] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/1084
| [  276.734988][ T1084] Modules linked in: netdevsim
| [  276.735466][ T1084] Tainted: [W]=WARN
[  276.735594][ T1084] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  276.735790][ T1084] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  276.735992][ T1084] 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
[  276.736549][ T1084] RSP: 0018:ffa0000002347310 EFLAGS: 00010286
[  276.736751][ T1084] RAX: 00000000ffffffa6 RBX: ff1100000a8ed240 RCX: 1ff4000000468e28
[  276.736982][ T1084] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a8ed2f0
[  276.737207][ T1084] RBP: ff11000012d2a000 R08: 1fe220000151da5f R09: ff11000002610bd0
[  276.737436][ T1084] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  276.737668][ T1084] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  276.737901][ T1084] FS:  00007f81f0d7d840(0000) GS:ff1100009d705000(0000) knlGS:0000000000000000
[  276.738185][ T1084] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  276.738385][ T1084] CR2: 00007f81f1332004 CR3: 00000000159c7003 CR4: 0000000000771ef0
[  276.738620][ T1084] PKRU: 55555554
[  276.738734][ T1084] Call Trace:
[  276.738848][ T1084]  <TASK>
[  276.738930][ T1084]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  276.739126][ T1084]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  276.739313][ T1084]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  276.739475][ T1084]  ? netdev_run_todo (net/core/dev.c:11703)
[  276.739635][ T1084]  ? 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)
[  276.739790][ T1084]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  276.739940][ T1084]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  276.740094][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.740247][ T1084]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  276.740406][ T1084] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  276.740558][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.740977][ T1084] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  276.741168][ T1084] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  276.741360][ T1084] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  276.741551][ T1084]  devlink_reload (net/devlink/dev.c:462)
[  276.741708][ T1084]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  276.741860][ T1084]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  276.742050][ T1084]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  276.742200][ T1084]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  276.742392][ T1084]  ? __nla_validate_parse (lib/nlattr.c:635)
[  276.742544][ T1084]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.742702][ T1084]  ? __nla_parse (lib/nlattr.c:732)
[  276.742856][ T1084]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  276.743008][ T1084]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  276.743200][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.743353][ T1084]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  276.743504][ T1084]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  276.743665][ T1084]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  276.743820][ T1084]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  276.744007][ T1084]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  276.744194][ T1084]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  276.744348][ T1084]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.744498][ T1084]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  276.744655][ T1084]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.744813][ T1084]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  276.744965][ T1084]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  276.745114][ T1084]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  276.745264][ T1084]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  276.745425][ T1084]  ? 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))
[  276.745575][ T1084]  ? 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))
[  276.745735][ T1084]  genl_rcv (net/netlink/genetlink.c:1218)
[  276.745849][ T1084]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  276.746002][ T1084]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  276.746153][ T1084]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.746306][ T1084]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  276.746466][ T1084]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  276.746624][ T1084]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.746778][ T1084]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.746932][ T1084]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  276.747086][ T1084]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  276.747250][ T1084]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  276.747448][ T1084]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  276.747647][ T1084]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  276.747799][ T1084]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  276.747949][ T1084]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  276.748102][ T1084]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  276.748254][ T1084]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  276.748414][ T1084]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  276.748609][ T1084] RIP: 0033:0x7f81f0fb708e
[  276.748772][ T1084] 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
[  276.749309][ T1084] RSP: 002b:00007fff1102e820 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  276.749547][ T1084] RAX: ffffffffffffffda RBX: 0000000010c06980 RCX: 00007f81f0fb708e
[  276.749782][ T1084] RDX: 0000000000000038 RSI: 0000000010c06ba0 RDI: 0000000000000005
[  276.750011][ T1084] RBP: 00007fff1102e830 R08: 00007f81f126b980 R09: 000000000000000c
[  276.750237][ T1084] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  276.750471][ T1084] R13: 0000000010c06980 R14: 0000000000000000 R15: 0000000000000003
| [  276.790647][ T1084] ------------[ cut here ]------------
| [  276.790835][ T1084] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: devlink/1084
| [  276.791154][ T1084] Modules linked in: netdevsim
| [  276.791649][ T1084] Tainted: [W]=WARN
[  276.791767][ T1084] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  276.791961][ T1084] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  276.792166][ T1084] 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
[  276.792735][ T1084] RSP: 0018:ffa0000002347268 EFLAGS: 00010286
[  276.792933][ T1084] RAX: 00000000ffffffa6 RBX: ff11000016bb90c0 RCX: 1ff4000000468e13
[  276.793179][ T1084] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000016bb9170
[  276.793450][ T1084] RBP: ff110000122b2000 R08: 1fe2200002d7722f R09: ff11000002610bd0
[  276.793768][ T1084] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  276.794077][ T1084] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000122b2000
[  276.794394][ T1084] FS:  00007f81f0d7d840(0000) GS:ff1100009d705000(0000) knlGS:0000000000000000
[  276.794767][ T1084] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  276.795029][ T1084] CR2: 00007f81f1332004 CR3: 00000000159c7003 CR4: 0000000000771ef0
[  276.795348][ T1084] PKRU: 55555554
[  276.795504][ T1084] Call Trace:
[  276.795734][ T1084]  <TASK>
[  276.795816][ T1084]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  276.795976][ T1084]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  276.796097][ T1084]  register_netdevice (net/core/dev.c:11488)
[  276.796259][ T1084]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  276.796462][ T1084]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  276.796633][ T1084] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  276.796833][ T1084] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  276.796991][ T1084] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  276.797185][ T1084]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  276.797348][ T1084]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  276.797545][ T1084]  ? 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))
[  276.797707][ T1084]  ? static_obj (kernel/locking/lockdep.c:858)
[  276.797827][ T1084]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  276.797985][ T1084]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  276.798182][ T1084] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  276.798383][ T1084]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  276.798587][ T1084]  devlink_reload (net/devlink/dev.c:475)
[  276.798744][ T1084]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  276.798898][ T1084]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  276.799094][ T1084]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  276.799249][ T1084]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  276.799446][ T1084]  ? __nla_validate_parse (lib/nlattr.c:635)
[  276.799613][ T1084]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.799770][ T1084]  ? __nla_parse (lib/nlattr.c:732)
[  276.799926][ T1084]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  276.800083][ T1084]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  276.800278][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  276.800438][ T1084]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  276.800606][ T1084]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  276.800770][ T1084]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  276.800926][ T1084]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  276.801119][ T1084]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  276.801313][ T1084]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  276.801481][ T1084]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  276.801642][ T1084]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  276.801801][ T1084]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.801959][ T1084]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  276.802115][ T1084]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  276.802272][ T1084]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  276.802438][ T1084]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  276.802608][ T1084]  ? 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))
[  276.802765][ T1084]  ? 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))
[  276.802923][ T1084]  genl_rcv (net/netlink/genetlink.c:1218)
[  276.803043][ T1084]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  276.803201][ T1084]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  276.803362][ T1084]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  276.803522][ T1084]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  276.803684][ T1084]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  276.803841][ T1084]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.803998][ T1084]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  276.804154][ T1084]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  276.804311][ T1084]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  276.804483][ T1084]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  276.804644][ T1084]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  276.804840][ T1084]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  276.804996][ T1084]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  276.805150][ T1084]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  276.805304][ T1084]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  276.805471][ T1084]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  276.805633][ T1084]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  276.805827][ T1084] RIP: 0033:0x7f81f0fb708e
[  276.805991][ T1084] 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
[  276.806552][ T1084] RSP: 002b:00007fff1102e820 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  276.806795][ T1084] RAX: ffffffffffffffda RBX: 0000000010c06980 RCX: 00007f81f0fb708e
[  276.807027][ T1084] RDX: 0000000000000038 RSI: 0000000010c06ba0 RDI: 0000000000000005
[  276.807261][ T1084] RBP: 00007fff1102e830 R08: 00007f81f126b980 R09: 000000000000000c
[  276.807498][ T1084] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  276.807736][ T1084] R13: 0000000010c06980 R14: 0000000000000000 R15: 0000000000000003
| [  277.678562][ T1149] ------------[ cut here ]------------
| [  277.678822][ T1149] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/1149
| [  277.679193][ T1149] Modules linked in: netdevsim
| [  277.679777][ T1149] Tainted: [W]=WARN
[  277.679941][ T1149] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  277.680179][ T1149] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  277.680433][ T1149] 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
[  277.681024][ T1149] RSP: 0018:ffa00000025a7310 EFLAGS: 00010286
[  277.681263][ T1149] RAX: 00000000ffffffa6 RBX: ff1100000a8273c0 RCX: 1ff40000004b4e28
[  277.681543][ T1149] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a827470
[  277.681829][ T1149] RBP: ff110000122b2000 R08: 1fe2200001504e8f R09: ff11000007518bd0
[  277.682099][ T1149] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  277.682374][ T1149] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  277.682673][ T1149] FS:  00007f2a16df6840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[  277.682986][ T1149] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  277.683223][ T1149] CR2: 00007f2a173ab004 CR3: 00000000158c7004 CR4: 0000000000771ef0
[  277.683504][ T1149] PKRU: 55555554
[  277.683677][ T1149] Call Trace:
[  277.683840][ T1149]  <TASK>
[  277.683967][ T1149]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  277.684211][ T1149]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  277.684455][ T1149]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  277.684671][ T1149]  ? netdev_run_todo (net/core/dev.c:11703)
[  277.684875][ T1149]  ? 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)
[  277.685082][ T1149]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  277.685282][ T1149]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  277.685490][ T1149]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  277.685706][ T1149]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  277.685909][ T1149] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  277.686113][ T1149]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  277.686314][ T1149] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  277.686561][ T1149] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  277.686816][ T1149] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  277.687052][ T1149]  devlink_reload (net/devlink/dev.c:462)
[  277.687253][ T1149]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  277.687457][ T1149]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  277.687707][ T1149]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  277.687909][ T1149]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  277.688141][ T1149]  ? __nla_validate_parse (lib/nlattr.c:635)
[  277.688348][ T1149]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  277.688547][ T1149]  ? __nla_parse (lib/nlattr.c:732)
[  277.688762][ T1149]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  277.688963][ T1149]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  277.689201][ T1149]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  277.689408][ T1149]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  277.689623][ T1149]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  277.689827][ T1149]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  277.690027][ T1149]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  277.690257][ T1149]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  277.690501][ T1149]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  277.690706][ T1149]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  277.690903][ T1149]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  277.691100][ T1149]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  277.691302][ T1149]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  277.691509][ T1149]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  277.691719][ T1149]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  277.691920][ T1149]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  277.692122][ T1149]  ? 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))
[  277.692320][ T1149]  ? 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))
[  277.692529][ T1149]  genl_rcv (net/netlink/genetlink.c:1218)
[  277.692706][ T1149]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  277.692908][ T1149]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  277.693105][ T1149]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  277.693305][ T1149]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  277.693513][ T1149]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  277.693726][ T1149]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  277.693930][ T1149]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  277.694129][ T1149]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  277.694336][ T1149]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  277.694547][ T1149]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  277.694762][ T1149]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  277.694997][ T1149]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  277.695199][ T1149]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  277.695409][ T1149]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  277.695623][ T1149]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  277.695825][ T1149]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  277.696027][ T1149]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  277.696262][ T1149] RIP: 0033:0x7f2a1703008e
[  277.696475][ T1149] 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
[  277.697070][ T1149] RSP: 002b:00007fff91c52b10 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  277.697353][ T1149] RAX: ffffffffffffffda RBX: 000000000bb59980 RCX: 00007f2a1703008e
[  277.697642][ T1149] RDX: 0000000000000038 RSI: 000000000bb59ba0 RDI: 0000000000000005
[  277.697924][ T1149] RBP: 00007fff91c52b20 R08: 00007f2a172e4980 R09: 000000000000000c
[  277.698195][ T1149] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  277.698473][ T1149] R13: 000000000bb59980 R14: 0000000000000000 R15: 0000000000000003
| [  277.751966][ T1149] ------------[ cut here ]------------
| [  277.752222][ T1149] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/1149
| [  277.752605][ T1149] Modules linked in: netdevsim
| [  277.753170][ T1149] Tainted: [W]=WARN
[  277.753338][ T1149] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  277.753601][ T1149] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  277.753852][ T1149] 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
[  277.754448][ T1149] RSP: 0018:ffa00000025a7268 EFLAGS: 00010286
[  277.754726][ T1149] RAX: 00000000ffffffa6 RBX: ff11000016bb9b40 RCX: 1ff40000004b4e13
[  277.754999][ T1149] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000016bb9bf0
[  277.755272][ T1149] RBP: ff11000009542000 R08: 1fe2200002d7737f R09: ff11000007518bd0
[  277.755552][ T1149] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  277.755836][ T1149] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009542000
[  277.756114][ T1149] FS:  00007f2a16df6840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[  277.756434][ T1149] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  277.756685][ T1149] CR2: 00007f2a173ab004 CR3: 00000000158c7004 CR4: 0000000000771ef0
[  277.756961][ T1149] PKRU: 55555554
[  277.757124][ T1149] Call Trace:
[  277.757287][ T1149]  <TASK>
[  277.757420][ T1149]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  277.757655][ T1149]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  277.757819][ T1149]  register_netdevice (net/core/dev.c:11488)
[  277.758020][ T1149]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  277.758254][ T1149]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  277.758467][ T1149] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  277.758727][ T1149] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  277.758929][ T1149] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  277.759166][ T1149]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  277.759375][ T1149]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  277.759627][ T1149]  ? 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))
[  277.759829][ T1149]  ? static_obj (kernel/locking/lockdep.c:858)
[  277.759992][ T1149]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  277.760196][ T1149]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  277.760444][ T1149] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  277.760698][ T1149]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  277.760937][ T1149]  devlink_reload (net/devlink/dev.c:475)
[  277.761140][ T1149]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  277.761346][ T1149]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  277.761616][ T1149]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  277.761818][ T1149]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  277.762052][ T1149]  ? __nla_validate_parse (lib/nlattr.c:635)
[  277.762255][ T1149]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  277.762460][ T1149]  ? __nla_parse (lib/nlattr.c:732)
[  277.762673][ T1149]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  277.762873][ T1149]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  277.763114][ T1149]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  277.763313][ T1149]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  277.763520][ T1149]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  277.763738][ T1149]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  277.763938][ T1149]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  277.764172][ T1149]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  277.764416][ T1149]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  277.764632][ T1149]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  277.764831][ T1149]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  277.765029][ T1149]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  277.765233][ T1149]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  277.765441][ T1149]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  277.765652][ T1149]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  277.765853][ T1149]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  277.766058][ T1149]  ? 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))
[  277.766256][ T1149]  ? 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))
[  277.766468][ T1149]  genl_rcv (net/netlink/genetlink.c:1218)
[  277.766647][ T1149]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  277.766848][ T1149]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  277.767046][ T1149]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  277.767247][ T1149]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  277.767456][ T1149]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  277.767672][ T1149]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  277.767871][ T1149]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  277.768072][ T1149]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  277.768274][ T1149]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  277.768493][ T1149]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  277.768707][ T1149]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  277.768945][ T1149]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  277.769146][ T1149]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  277.769351][ T1149]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  277.769550][ T1149]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  277.769763][ T1149]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  277.769966][ T1149]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  277.770201][ T1149] RIP: 0033:0x7f2a1703008e
[  277.770412][ T1149] 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
[  277.771010][ T1149] RSP: 002b:00007fff91c52b10 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  277.771283][ T1149] RAX: ffffffffffffffda RBX: 000000000bb59980 RCX: 00007f2a1703008e
[  277.771562][ T1149] RDX: 0000000000000038 RSI: 000000000bb59ba0 RDI: 0000000000000005
[  277.771851][ T1149] RBP: 00007fff91c52b20 R08: 00007f2a172e4980 R09: 000000000000000c
[  277.772123][ T1149] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  277.772404][ T1149] R13: 000000000bb59980 R14: 0000000000000000 R15: 0000000000000003
| [  278.148471][ T1177] ------------[ cut here ]------------
| [  278.149512][ T1177] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/1177
| [  278.149946][ T1177] Modules linked in: netdevsim
| [  278.150636][ T1177] Tainted: [W]=WARN
[  278.150794][ T1177] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.151031][ T1177] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.151277][ T1177] 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
[  278.151880][ T1177] RSP: 0018:ffa0000002687310 EFLAGS: 00010286
[  278.152115][ T1177] RAX: 00000000ffffffa6 RBX: ff11000004a32640 RCX: 1ff40000004d0e28
[  278.152392][ T1177] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004a326f0
[  278.152670][ T1177] RBP: ff11000009542000 R08: 1fe22000009464df R09: ff11000015238bd0
[  278.152939][ T1177] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  278.153212][ T1177] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  278.153495][ T1177] FS:  00007f2be06e5840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[  278.153817][ T1177] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.154052][ T1177] CR2: 00007f2be0c9a004 CR3: 0000000013c94005 CR4: 0000000000771ef0
[  278.154326][ T1177] PKRU: 55555554
[  278.154493][ T1177] Call Trace:
[  278.154665][ T1177]  <TASK>
[  278.154790][ T1177]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  278.155029][ T1177]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.155260][ T1177]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  278.155471][ T1177]  ? netdev_run_todo (net/core/dev.c:11703)
[  278.155686][ T1177]  ? 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)
[  278.155891][ T1177]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  278.156088][ T1177]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  278.156284][ T1177]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.156489][ T1177]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  278.156703][ T1177] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  278.156903][ T1177]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.157103][ T1177] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  278.157352][ T1177] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  278.157602][ T1177] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  278.157838][ T1177]  devlink_reload (net/devlink/dev.c:462)
[  278.158038][ T1177]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  278.158236][ T1177]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  278.158479][ T1177]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  278.158694][ T1177]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  278.158926][ T1177]  ? __nla_validate_parse (lib/nlattr.c:635)
[  278.159127][ T1177]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  278.159326][ T1177]  ? __nla_parse (lib/nlattr.c:732)
[  278.159536][ T1177]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  278.159748][ T1177]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  278.159983][ T1177]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.160182][ T1177]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  278.160383][ T1177]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  278.160634][ T1177]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  278.160837][ T1177]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  278.161068][ T1177]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  278.161300][ T1177]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  278.161504][ T1177]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  278.161716][ T1177]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  278.161916][ T1177]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  278.162117][ T1177]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  278.162316][ T1177]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  278.162521][ T1177]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  278.162733][ T1177]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  278.162936][ T1177]  ? 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))
[  278.163136][ T1177]  ? 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))
[  278.163346][ T1177]  genl_rcv (net/netlink/genetlink.c:1218)
[  278.163507][ T1177]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  278.163719][ T1177]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  278.163917][ T1177]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  278.164118][ T1177]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  278.164317][ T1177]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  278.164524][ T1177]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  278.164741][ T1177]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  278.164941][ T1177]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  278.165140][ T1177]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  278.165356][ T1177]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  278.165554][ T1177]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.165802][ T1177]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  278.165999][ T1177]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  278.166200][ T1177]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  278.166403][ T1177]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  278.166612][ T1177]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  278.166814][ T1177]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  278.167046][ T1177] RIP: 0033:0x7f2be091f08e
[  278.167254][ T1177] 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
[  278.167846][ T1177] RSP: 002b:00007ffcf7b16fd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  278.168117][ T1177] RAX: ffffffffffffffda RBX: 000000003d844980 RCX: 00007f2be091f08e
[  278.168396][ T1177] RDX: 0000000000000038 RSI: 000000003d844ba0 RDI: 0000000000000005
[  278.168678][ T1177] RBP: 00007ffcf7b16fe0 R08: 00007f2be0bd3980 R09: 000000000000000c
[  278.168950][ T1177] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  278.169217][ T1177] R13: 000000003d844980 R14: 0000000000000000 R15: 0000000000000003
| [  278.294440][ T1179] ------------[ cut here ]------------
| [  278.294735][ T1179] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink/1179
| [  278.295095][ T1179] Modules linked in: netdevsim
| [  278.295704][ T1179] Tainted: [W]=WARN
[  278.295869][ T1179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.296114][ T1179] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.296375][ T1179] 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
[  278.296977][ T1179] RSP: 0018:ffa0000002697268 EFLAGS: 00010286
[  278.297219][ T1179] RAX: 00000000ffffffa6 RBX: ff1100000a8ed840 RCX: 1ff40000004d2e13
[  278.297503][ T1179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a8ed8f0
[  278.297809][ T1179] RBP: ff11000012d8a000 R08: 1fe220000151db1f R09: ff11000016be8bd0
[  278.298093][ T1179] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff
[  278.298376][ T1179] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000012d8a000
[  278.298672][ T1179] FS:  00007f09d6bfa840(0000) GS:ff1100009d685000(0000) knlGS:0000000000000000
[  278.298991][ T1179] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.299229][ T1179] CR2: 00007f09d71af004 CR3: 00000000159c2004 CR4: 0000000000771ef0
[  278.299513][ T1179] PKRU: 55555554
[  278.299696][ T1179] Call Trace:
[  278.299859][ T1179]  <TASK>
[  278.299986][ T1179]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  278.300189][ T1179]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  278.300367][ T1179]  register_netdevice (net/core/dev.c:11488)
[  278.300569][ T1179]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  278.300816][ T1179]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  278.301020][ T1179] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  278.301263][ T1179] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  278.301470][ T1179] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  278.301725][ T1179]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  278.301926][ T1179]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  278.302166][ T1179]  ? 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))
[  278.302372][ T1179]  ? static_obj (kernel/locking/lockdep.c:858)
[  278.302533][ T1179]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  278.302749][ T1179]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  278.302992][ T1179] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  278.303235][ T1179]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  278.303478][ T1179]  devlink_reload (net/devlink/dev.c:475)
[  278.303690][ T1179]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  278.303909][ T1179]  ? devlink_resources_validate (net/devlink/resource.c:471)
[  278.304148][ T1179]  devlink_nl_reload_doit (net/devlink/dev.c:585)
[  278.304354][ T1179]  ? devlink_get_from_attrs_lock (net/devlink/devl_internal.h:112 net/devlink/devl_internal.h:118 net/devlink/netlink.c:235)
[  278.304606][ T1179]  ? __nla_validate_parse (lib/nlattr.c:635)
[  278.304807][ T1179]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  278.305005][ T1179]  ? __nla_parse (lib/nlattr.c:732)
[  278.305206][ T1179]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[  278.305418][ T1179]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[  278.305668][ T1179]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.305868][ T1179]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  278.306068][ T1179]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  278.306271][ T1179]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[  278.306477][ T1179]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[  278.306725][ T1179]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  278.306962][ T1179]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:262)
[  278.307158][ T1179]  ? devlink_reload (./include/net/net_namespace.h:412 (discriminator 8))
[  278.307363][ T1179]  ? devlink_nl_post_doit (net/devlink/netlink.c:307)
[  278.307567][ T1179]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  278.307789][ T1179]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[  278.307990][ T1179]  netlink_rcv_skb (net/netlink/af_netlink.c:2551)
[  278.308191][ T1179]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[  278.308398][ T1179]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  278.308614][ T1179]  ? 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))
[  278.308813][ T1179]  ? 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))
[  278.309018][ T1179]  genl_rcv (net/netlink/genetlink.c:1218)
[  278.309179][ T1179]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  278.309394][ T1179]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  278.309606][ T1179]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  278.309811][ T1179]  netlink_sendmsg (net/netlink/af_netlink.c:1895)
[  278.310011][ T1179]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  278.310213][ T1179]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  278.310423][ T1179]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  278.310643][ T1179]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  278.310866][ T1179]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  278.311078][ T1179]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  278.311278][ T1179]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.311525][ T1179]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  278.311739][ T1179]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  278.311938][ T1179]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  278.312145][ T1179]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  278.312351][ T1179]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  278.312552][ T1179]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  278.312803][ T1179] RIP: 0033:0x7f09d6e3408e
[  278.313011][ T1179] 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
[  278.313616][ T1179] RSP: 002b:00007fff2ab761e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  278.313894][ T1179] RAX: ffffffffffffffda RBX: 000000000f42d980 RCX: 00007f09d6e3408e
[  278.314166][ T1179] RDX: 0000000000000038 RSI: 000000000f42dba0 RDI: 0000000000000005
[  278.314447][ T1179] RBP: 00007fff2ab761f0 R08: 00007f09d70e8980 R09: 000000000000000c
[  278.314742][ T1179] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000040cd80
[  278.315035][ T1179] R13: 000000000f42d980 R14: 0000000000000000 R15: 0000000000000003
| [  278.412284][   T12] ------------[ cut here ]------------
| [  278.412510][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [  278.412815][   T12] Modules linked in: netdevsim
| [  278.413314][   T12] Tainted: [W]=WARN
[  278.413427][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.413624][   T12] Workqueue: netns cleanup_net
[  278.413782][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.414061][   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
[  278.414561][   T12] RSP: 0018:ffa00000000c7610 EFLAGS: 00010286
[  278.414789][   T12] RAX: 00000000ffffffa6 RBX: ff11000012d69b40 RCX: 1ff4000000018e88
[  278.414999][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000012d69bf0
[  278.415208][   T12] RBP: ff11000012d8a000 R08: 1fe22000025ad37f R09: ff11000001b05220
[  278.415420][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[  278.415636][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  278.415849][   T12] FS:  0000000000000000(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[  278.416101][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.416293][   T12] CR2: 0000557a810c9d5c CR3: 000000000558a003 CR4: 0000000000771ef0
[  278.416526][   T12] PKRU: 55555554
[  278.416649][   T12] Call Trace:
[  278.416762][   T12]  <TASK>
[  278.416836][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  278.417016][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.417189][   T12]  ? nsim_destroy (drivers/net/netdevsim/netdev.c:1188) netdevsim
[  278.417332][   T12]  ? netdev_run_todo (net/core/dev.c:11703)
[  278.417477][   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)
[  278.417627][   T12]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  278.417768][   T12]  ? rtnl_net_dev_lock (./include/linux/rtnetlink.h:130 net/core/dev.c:2162)
[  278.417908][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.418049][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  278.418190][   T12] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  278.418328][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.418473][   T12] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  278.418656][   T12] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  278.418840][   T12] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:1038) netdevsim
[  278.419015][   T12]  devlink_reload (net/devlink/dev.c:462)
[  278.419156][   T12]  ? xas_find_conflict (lib/xarray.c:207 lib/xarray.c:1568)
[  278.419297][   T12]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  278.419441][   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))
[  278.419589][   T12]  devlink_pernet_pre_exit (net/devlink/core.c:558)
[  278.419728][   T12]  ? devlink_free (./include/linux/list.h:404 (discriminator 3))
[  278.419874][   T12]  ops_undo_list (net/core/net_namespace.c:161 net/core/net_namespace.c:234)
[  278.420014][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[  278.420152][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  278.420294][   T12]  cleanup_net (net/core/net_namespace.c:702)
[  278.420439][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  278.420582][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  278.420722][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  278.420862][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.421002][   T12]  process_one_work (kernel/workqueue.c:3314)
[  278.421144][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  278.421283][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.421432][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  278.421574][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  278.421787][   T12]  kthread (kernel/kthread.c:436)
[  278.421892][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.422066][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.422204][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  278.422348][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  278.422522][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  278.422668][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.422806][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  278.474554][   T12] ------------[ cut here ]------------
| [  278.474754][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [  278.475075][   T12] Modules linked in: netdevsim
| [  278.475628][   T12] Tainted: [W]=WARN
[  278.475756][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.475953][   T12] Workqueue: netns cleanup_net
[  278.476115][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.476314][   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
[  278.476883][   T12] RSP: 0018:ffa00000000c7568 EFLAGS: 00010286
[  278.477078][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a827840 RCX: 1ff4000000018e73
[  278.477302][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a8278f0
[  278.477523][   T12] RBP: ff110000136a2000 R08: 1fe2200001504f1f R09: ff11000001b05220
[  278.477747][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[  278.477960][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ff110000136a2000
[  278.478176][   T12] FS:  0000000000000000(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[  278.478433][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.478621][   T12] CR2: 0000557a810c9d5c CR3: 000000000558a003 CR4: 0000000000771ef0
[  278.478836][   T12] PKRU: 55555554
[  278.478944][   T12] Call Trace:
[  278.479051][   T12]  <TASK>
[  278.479131][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  278.479280][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  278.479396][   T12]  register_netdevice (net/core/dev.c:11488)
[  278.479544][   T12]  ? unregister_netdevice_queue (./include/linux/list.h:162)
[  278.479729][   T12]  ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452)
[  278.479878][   T12] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim
[  278.480069][   T12] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim
[  278.480215][   T12] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim
[  278.480401][   T12]  ? add_timer_on (kernel/time/timer.c:925 (discriminator 5))
[  278.480548][   T12]  ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim
[  278.480735][   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))
[  278.480880][   T12]  ? static_obj (kernel/locking/lockdep.c:858)
[  278.480988][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  278.481135][   T12]  ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim
[  278.481319][   T12] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1622) netdevsim
[  278.481504][   T12]  ? devlink_reload_reinit_sanity_check (net/devlink/dev.c:437 (discriminator 1))
[  278.481695][   T12]  devlink_reload (net/devlink/dev.c:475)
[  278.481842][   T12]  ? xas_find_conflict (lib/xarray.c:207 lib/xarray.c:1568)
[  278.481987][   T12]  ? devlink_notify_unregister (net/devlink/dev.c:308)
[  278.482132][   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))
[  278.482279][   T12]  devlink_pernet_pre_exit (net/devlink/core.c:558)
[  278.482430][   T12]  ? devlink_free (./include/linux/list.h:404 (discriminator 3))
[  278.482589][   T12]  ops_undo_list (net/core/net_namespace.c:161 net/core/net_namespace.c:234)
[  278.482739][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[  278.482881][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  278.483029][   T12]  cleanup_net (net/core/net_namespace.c:702)
[  278.483179][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  278.483323][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  278.483474][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  278.483646][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.483809][   T12]  process_one_work (kernel/workqueue.c:3314)
[  278.483969][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  278.484124][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.484276][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  278.484429][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  278.484574][   T12]  kthread (kernel/kthread.c:436)
[  278.484689][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.484871][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.485020][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  278.485169][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  278.485358][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  278.485503][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.485653][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  278.487903][   T12] ------------[ cut here ]------------
| [  278.488140][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [  278.488408][   T12] Modules linked in: netdevsim
| [  278.488915][   T12] Tainted: [W]=WARN
[  278.489015][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.489206][   T12] Workqueue: netns cleanup_net
[  278.489349][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.489525][   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
[  278.490175][   T12] RSP: 0018:ffa00000000c76f8 EFLAGS: 00010286
[  278.490347][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a826f40 RCX: 1ff4000000018ea5
[  278.490633][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a826ff0
[  278.490828][   T12] RBP: ff11000013e6c000 R08: 1fe2200001504dff R09: ff11000001b051f8
[  278.491025][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000041
[  278.491306][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000000c77e8
[  278.491505][   T12] FS:  0000000000000000(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[  278.491742][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.491908][   T12] CR2: 0000557a810c9d5c CR3: 000000000558a003 CR4: 0000000000771ef0
[  278.492107][   T12] PKRU: 55555554
[  278.492205][   T12] Call Trace:
[  278.492304][   T12]  <TASK>
[  278.492376][   T12]  rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551)
[  278.492508][   T12]  rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560)
[  278.492616][   T12]  netif_close_many (net/core/dev.c:1804)
[  278.492746][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.492876][   T12]  ? default_device_exit_batch (net/core/dev.c:13075)
[  278.493089][   T12]  ? __dev_close_many (net/core/dev.c:1781)
[  278.493218][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.493354][   T12]  netif_close_many_and_unlock (net/core/dev.c:12330)
[  278.493488][   T12]  ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396)
[  278.493653][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12400)
[  278.493812][   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)
[  278.493941][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.494071][   T12]  ? default_device_exit_net (net/core/dev.c:13033 (discriminator 1))
[  278.494202][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.494449][   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)
[  278.494586][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.494720][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  278.494886][   T12]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  278.495099][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  278.495243][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  278.495377][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[  278.495506][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[  278.495773][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  278.495901][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.496028][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[  278.496157][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  278.496288][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[  278.496418][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  278.496548][   T12]  cleanup_net (net/core/net_namespace.c:702)
[  278.496698][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  278.496843][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  278.496990][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  278.497135][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.497306][   T12]  process_one_work (kernel/workqueue.c:3314)
[  278.497456][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  278.497592][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.497726][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  278.497861][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  278.497988][   T12]  kthread (kernel/kthread.c:436)
[  278.498085][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.498247][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.498380][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  278.498511][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  278.498676][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  278.498805][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.498934][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  278.511258][   T12] ------------[ cut here ]------------
| [  278.511432][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [  278.511724][   T12] Modules linked in: netdevsim
| [  278.512206][   T12] Tainted: [W]=WARN
[  278.512299][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.512485][   T12] Workqueue: netns cleanup_net
[  278.512621][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.512779][   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
[  278.513203][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[  278.513360][   T12] RAX: 00000000ffffffa6 RBX: ff1100000a827cc0 RCX: 1ff4000000018ed5
[  278.513538][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000a827d70
[  278.513729][   T12] RBP: ff11000013e6c000 R08: 1fe2200001504faf R09: ff11000001b051d0
[  278.513911][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[  278.514089][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  278.514269][   T12] FS:  0000000000000000(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[  278.514492][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.514651][   T12] CR2: 0000557a810c9d5c CR3: 000000000558a003 CR4: 0000000000771ef0
[  278.514833][   T12] PKRU: 55555554
[  278.514925][   T12] Call Trace:
[  278.515017][   T12]  <TASK>
[  278.515080][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  278.515235][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.515389][   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)
[  278.515513][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.515646][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  278.515800][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  278.515923][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  278.516042][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[  278.516162][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[  278.516284][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  278.516416][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.516538][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[  278.516677][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  278.516804][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[  278.516923][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  278.517053][   T12]  cleanup_net (net/core/net_namespace.c:702)
[  278.517176][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  278.517296][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  278.517424][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  278.517544][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.517671][   T12]  process_one_work (kernel/workqueue.c:3314)
[  278.517793][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  278.517912][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.518039][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  278.518167][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  278.518291][   T12]  kthread (kernel/kthread.c:436)
[  278.518383][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.518530][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.518655][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  278.518777][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  278.518924][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  278.519047][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.519170][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  278.521705][   T12] ------------[ cut here ]------------
| [  278.521831][   T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12
| [  278.522069][   T12] Modules linked in: netdevsim
| [  278.522468][   T12] Tainted: [W]=WARN
[  278.522559][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.522717][   T12] Workqueue: netns cleanup_net
[  278.522844][   T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.523001][   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
[  278.523430][   T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286
[  278.523588][   T12] RAX: 00000000ffffffa6 RBX: ff1100001532a340 RCX: 1ff4000000018ed5
[  278.523770][   T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100001532a3f0
[  278.523949][   T12] RBP: ff110000059ac000 R08: 1fe2200002a6547f R09: ff11000001b051d0
[  278.524129][   T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff
[  278.524306][   T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  278.524493][   T12] FS:  0000000000000000(0000) GS:ff1100009d585000(0000) knlGS:0000000000000000
[  278.524707][   T12] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.524857][   T12] CR2: 0000557a810c9d5c CR3: 000000000558a003 CR4: 0000000000771ef0
[  278.525037][   T12] PKRU: 55555554
[  278.525127][   T12] Call Trace:
[  278.525222][   T12]  <TASK>
[  278.525284][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  278.525440][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.525592][   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)
[  278.525713][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.525832][   T12]  ? unregister_netdevice_queue (net/core/dev.c:12301 (discriminator 1))
[  278.525981][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3))
[  278.526102][   T12]  default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089)
[  278.526224][   T12]  ? generic_xdp_install (./include/linux/netdevice.h:5659)
[  278.526347][   T12]  ? ipmr_free_table (net/ipv4/ipmr.c:453)
[  278.526467][   T12]  ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7))
[  278.526591][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  278.526708][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1))
[  278.526831][   T12]  ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252)
[  278.526952][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094)
[  278.527072][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  278.527197][   T12]  cleanup_net (net/core/net_namespace.c:702)
[  278.527317][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  278.527439][   T12]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  278.527559][   T12]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  278.527686][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.527808][   T12]  process_one_work (kernel/workqueue.c:3314)
[  278.527934][   T12]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  278.528053][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.528177][   T12]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  278.528302][   T12]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  278.528428][   T12]  kthread (kernel/kthread.c:436)
[  278.528519][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  278.528674][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.528798][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  278.528922][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  278.529072][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  278.529193][   T12]  ? kthread_affine_node (kernel/kthread.c:378)
[  278.529313][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  278.532371][  T165] ------------[ cut here ]------------
| [  278.532584][  T165] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: nexthop.sh/165
| [  278.532894][  T165] Modules linked in: netdevsim
| [  278.533444][  T165] Tainted: [W]=WARN
[  278.533561][  T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  278.533812][  T165] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3))
[  278.534011][  T165] 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
[  278.534560][  T165] RSP: 0018:ffa0000000837728 EFLAGS: 00010286
[  278.534761][  T165] RAX: 00000000ffffffa6 RBX: ff1100001532a940 RCX: 1ff4000000106eab
[  278.534989][  T165] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100001532a9f0
[  278.535217][  T165] RBP: ff110000136a2000 R08: 1fe2200002a6553f R09: ff11000013428c48
[  278.535450][  T165] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff
[  278.535692][  T165] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[  278.535927][  T165] FS:  00007f63ec2afb80(0000) GS:ff1100009d705000(0000) knlGS:0000000000000000
[  278.536242][  T165] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  278.536441][  T165] CR2: 00007f9f9adaec30 CR3: 000000000558a005 CR4: 0000000000771ef0
[  278.536682][  T165] PKRU: 55555554
[  278.536797][  T165] Call Trace:
[  278.536911][  T165]  <TASK>
[  278.536990][  T165]  unregister_netdevice_many_notify (net/core/dev.c:12439)
[  278.537185][  T165]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[  278.537381][  T165]  ? __rtnl_unlock (net/core/rtnetlink.c:143)
[  278.537536][  T165]  ? netdev_run_todo (net/core/dev.c:11703)
[  278.537696][  T165]  ? ww_mutex_lock (kernel/locking/mutex.c:933)
[  278.537851][  T165]  ? 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)
[  278.538008][  T165]  unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299)
[  278.538162][  T165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.538314][  T165]  ? unregister_netdevice_many (net/core/dev.c:12497)
[  278.538473][  T165] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim
[  278.538634][  T165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.538789][  T165] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim
[  278.538983][  T165] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim
[  278.539175][  T165] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim
[  278.539329][  T165]  device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375)
[  278.539527][  T165]  bus_remove_device (drivers/base/bus.c:657)
[  278.539691][  T165]  ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1))
[  278.539845][  T165]  ? device_remove_file (drivers/base/core.c:3073)
[  278.540000][  T165]  device_del (drivers/base/core.c:3895)
[  278.540117][  T165]  ? __device_link_del (./include/linux/kobject.h:89)
[  278.540274][  T165]  ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1))
[  278.540434][  T165]  device_unregister (drivers/base/core.c:3936)
[  278.540593][  T165] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim
[  278.540787][  T165]  ? 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))
[  278.540940][  T165]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim
[  278.541131][  T165]  ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24)
[  278.541284][  T165]  ? sysfs_kf_write (fs/sysfs/file.c:137)
[  278.541443][  T165]  kernfs_fop_write_iter (fs/kernfs/file.c:352)
[  278.541603][  T165]  ? kernfs_ops (fs/kernfs/file.c:128)
[  278.541719][  T165]  new_sync_write (fs/read_write.c:595)
[  278.541874][  T165]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  278.542028][  T165]  ? new_sync_read (./include/linux/ioprio.h:41)
[  278.542180][  T165]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  278.542332][  T165]  ? ksys_write (fs/read_write.c:740)
[  278.542494][  T165]  vfs_write (fs/read_write.c:688)
[  278.542618][  T165]  ksys_write (fs/read_write.c:740)
[  278.542735][  T165]  ? __ia32_sys_read (fs/read_write.c:724)
[  278.542887][  T165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.543040][  T165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  278.543193][  T165]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  278.543348][  T165]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  278.543502][  T165]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  278.543674][  T165]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  278.543864][  T165] RIP: 0033:0x7f63ec32108e
[  278.544024][  T165] 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
[  278.544568][  T165] RSP: 002b:00007ffe65756620 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  278.544812][  T165] RAX: ffffffffffffffda RBX: 00007f63ec4a3580 RCX: 00007f63ec32108e
[  278.545051][  T165] RDX: 0000000000000005 RSI: 0000557aaf664130 RDI: 0000000000000001
[  278.545282][  T165] RBP: 00007ffe65756630 R08: 0000000000000000 R09: 0000000000000000
[  278.545521][  T165] 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