======================================
| [  385.500456][ T3257] 8021q: adding VLAN 0 to HW filter on device eni1337np2
| [  386.559114][ T1285] ------------[ cut here ]------------
| [  386.559386][ T1285] WARNING: drivers/net/netdevsim/netdev.c:1234 at nsim_destroy+0x128/0x7b0 [netdevsim], CPU#3: devlink_trap.sh/1285
| [  386.559763][ T1285] Modules linked in: netdevsim [last unloaded: netdevsim]
[  386.560324][ T1285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  386.560508][ T1285] RIP: 0010:nsim_destroy (drivers/net/netdevsim/netdev.c:1234 (discriminator 2)) netdevsim
[  386.560707][ T1285] Code: 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 0f 85 47 06 00 00 48 8b 3b e8 84 17 0c e4 31 c0 48 8d ab 48 07 00 00 eb 07 90 <0f> 0b 90 83 c0 01 0f b7 d0 be 00 10 00 00 48 89 ef e8 e2 22 50 e3
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 fc                	add    %bh,%ah
   6:	ff                   	lcall  (bad)
   7:	df 48 c1             	fisttps -0x3f(%rax)
   a:	e9 03 80 3c 01       	jmp    0x13c8012
   f:	00 0f                	add    %cl,(%rdi)
  11:	85 47 06             	test   %eax,0x6(%rdi)
  14:	00 00                	add    %al,(%rax)
  16:	48 8b 3b             	mov    (%rbx),%rdi
  19:	e8 84 17 0c e4       	call   0xffffffffe40c17a2
  1e:	31 c0                	xor    %eax,%eax
  20:	48 8d ab 48 07 00 00 	lea    0x748(%rbx),%rbp
  27:	eb 07                	jmp    0x30
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	83 c0 01             	add    $0x1,%eax
  30:	0f b7 d0             	movzwl %ax,%edx
  33:	be 00 10 00 00       	mov    $0x1000,%esi
  38:	48 89 ef             	mov    %rbp,%rdi
  3b:	e8 e2 22 50 e3       	call   0xffffffffe3502322

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	83 c0 01             	add    $0x1,%eax
   6:	0f b7 d0             	movzwl %ax,%edx
   9:	be 00 10 00 00       	mov    $0x1000,%esi
   e:	48 89 ef             	mov    %rbp,%rdi
  11:	e8 e2 22 50 e3       	call   0xffffffffe35022f8
[  386.561229][ T1285] RSP: 0018:ffa0000000fc7b70 EFLAGS: 00010293
[  386.561416][ T1285] RAX: 0000000000000000 RBX: ff11000005b8ad00 RCX: ff11000005b8b448
[  386.561662][ T1285] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dffffc0000000000
[  386.561888][ T1285] RBP: ff11000005b8b448 R08: ff11000005b8b448 R09: 0000000000000000
[  386.562113][ T1285] R10: 1fe2200000b71689 R11: 0000000000000001 R12: dffffc0000000000
[  386.562338][ T1285] R13: ff11000008dd5158 R14: 0000000000000002 R15: ffffffffa354fcc0
[  386.562560][ T1285] FS:  00007fd85bd5abc0(0000) GS:ff11000088a05000(0000) knlGS:0000000000000000
[  386.562825][ T1285] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  386.563030][ T1285] CR2: 000055a60b176448 CR3: 0000000008b05002 CR4: 0000000000771ef0
[  386.563387][ T1285] PKRU: 55555554
[  386.563502][ T1285] Call Trace:
[  386.563620][ T1285]  <TASK>
[  386.563706][ T1285]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[  386.563859][ T1285] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:444 drivers/net/netdevsim/dev.c:1529) netdevsim
[  386.564046][ T1285]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[  386.564199][ T1285] nsim_drv_port_del (drivers/net/netdevsim/dev.c:1836) netdevsim
[  386.564386][ T1285]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  386.564574][ T1285] del_port_store (drivers/net/netdevsim/bus.c:118) netdevsim
[  386.564727][ T1285]  ? sysfs_file_kobj (./include/linux/rcupdate.h:322 (discriminator 1) ./include/linux/rcupdate.h:881 (discriminator 1) ./include/linux/rcupdate.h:1193 (discriminator 1) fs/sysfs/file.c:24 (discriminator 1))
[  386.564877][ T1285]  ? del_device_store (drivers/net/netdevsim/bus.c:106) netdevsim
[  386.565063][ T1285]  ? sysfs_file_kobj (fs/sysfs/file.c:26)
[  386.565215][ T1285]  ? sysfs_kf_write (fs/sysfs/file.c:139)
[  386.565363][ T1285]  kernfs_fop_write_iter (fs/kernfs/file.c:88 fs/kernfs/file.c:356)
[  386.565508][ T1285]  ? kernfs_ops (fs/kernfs/file.c:312)
[  386.565625][ T1285]  new_sync_write (fs/read_write.c:596 (discriminator 1))
[  386.565773][ T1285]  ? new_sync_read (fs/read_write.c:586)
[  386.565918][ T1285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[  386.566069][ T1285]  ? ksys_write (fs/read_write.c:741)
[  386.566225][ T1285]  vfs_write (fs/read_write.c:688)
[  386.566338][ T1285]  ksys_write (fs/read_write.c:741)
[  386.566452][ T1285]  ? __ia32_sys_read (fs/read_write.c:730)
[  386.566614][ T1285]  ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  386.566763][ T1285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[  386.566914][ T1285]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[  386.567065][ T1285]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  386.567216][ T1285]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  386.567396][ T1285] RIP: 0033:0x7fd85bdcac5e
[  386.567549][ T1285] Code: 4d 89 d8 e8 34 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 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 34 bd 00 00       	call   0xbd3c
   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 13 ff ff ff       	call   0xffffffffffffff4c
  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 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  386.568078][ T1285] RSP: 002b:00007ffef0b0d460 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  386.568306][ T1285] RAX: ffffffffffffffda RBX: 00007fd85bf465c0 RCX: 00007fd85bdcac5e
[  386.568527][ T1285] RDX: 0000000000000002 RSI: 000055a60b184c00 RDI: 0000000000000001
[  386.568750][ T1285] RBP: 00007ffef0b0d470 R08: 0000000000000000 R09: 0000000000000000
[  386.568972][ T1285] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002


Finger prints:
nsim_destroy:__nsim_dev_port_del:nsim_drv_port_del:del_port_store:kernfs_fop_write_iter