======================================
| [   19.901225][  T268] 8021q: adding VLAN 0 to HW filter on device eni835np1
| [   20.805009][  T195] ------------[ cut here ]------------
| [   20.805262][  T195] WARNING: drivers/net/netdevsim/netdev.c:1234 at nsim_destroy+0x128/0x7b0 [netdevsim], CPU#3: tc-mq-visibilit/195
| [   20.805612][  T195] Modules linked in: netdevsim
[   20.806141][  T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.806483][  T195] RIP: 0010:nsim_destroy (drivers/net/netdevsim/netdev.c:1234 (discriminator 2)) netdevsim
[   20.806682][  T195] 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 2c df 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 70 de
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 2c df       	call   0xffffffffdf2c17a2
  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 70 de       	call   0xffffffffde702322

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 70 de       	call   0xffffffffde7022f8
[   20.807342][  T195] RSP: 0018:ffa00000009479b8 EFLAGS: 00010293
[   20.807541][  T195] RAX: 0000000000000000 RBX: ff110000093bad00 RCX: ff110000093bb448
[   20.807773][  T195] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dffffc0000000000
[   20.807994][  T195] RBP: ff110000093bb448 R08: ff110000093bb448 R09: 0000000000000000
[   20.808350][  T195] R10: 1fe2200001277689 R11: 0000000000000001 R12: ff1100000a6ba498
[   20.808577][  T195] R13: dffffc0000000000 R14: ff1100000a6ba000 R15: ffffffffc05bf380
[   20.808801][  T195] FS:  00007f0ff0364bc0(0000) GS:ff11000093205000(0000) knlGS:0000000000000000
[   20.809062][  T195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.809373][  T195] CR2: 000055ad4f4a7808 CR3: 000000000a3e8006 CR4: 0000000000771ef0
[   20.809596][  T195] PKRU: 55555554
[   20.809709][  T195] Call Trace:
[   20.809822][  T195]  <TASK>
[   20.809899][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   20.810056][  T195] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:444 drivers/net/netdevsim/dev.c:1529) netdevsim
[   20.810365][  T195]  ? devl_lock_is_held (net/devlink/core.c:285 (discriminator 1))
[   20.810517][  T195] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1538 (discriminator 4) drivers/net/netdevsim/dev.c:1764 (discriminator 4)) netdevsim
[   20.810703][  T195] nsim_drv_remove (drivers/net/netdevsim/dev.c:1781) netdevsim
[   20.810852][  T195]  device_release_driver_internal (drivers/base/dd.c:1286 drivers/base/dd.c:1307)
[   20.811040][  T195]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[   20.811255][  T195]  bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:623)
[   20.811421][  T195]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[   20.811567][  T195]  device_del (drivers/base/core.c:3879)
[   20.811680][  T195]  ? __device_link_del (drivers/base/core.c:3833)
[   20.811831][  T195]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[   20.811976][  T195]  device_unregister (drivers/base/core.c:3796 drivers/base/core.c:3920)
[   20.812123][  T195] del_device_store (drivers/net/netdevsim/bus.c:248) netdevsim
[   20.812342][  T195]  ? 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))
[   20.812496][  T195]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:215) netdevsim
[   20.812683][  T195]  ? sysfs_file_kobj (fs/sysfs/file.c:26)
[   20.812830][  T195]  ? sysfs_kf_write (fs/sysfs/file.c:139)
[   20.812978][  T195]  kernfs_fop_write_iter (fs/kernfs/file.c:88 fs/kernfs/file.c:356)
[   20.813126][  T195]  ? kernfs_ops (fs/kernfs/file.c:312)
[   20.813267][  T195]  new_sync_write (fs/read_write.c:596 (discriminator 1))
[   20.813437][  T195]  ? new_sync_read (fs/read_write.c:586)
[   20.813585][  T195]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   20.813733][  T195]  ? ksys_write (fs/read_write.c:741)
[   20.813888][  T195]  vfs_write (fs/read_write.c:688)
[   20.814002][  T195]  ksys_write (fs/read_write.c:741)
[   20.814113][  T195]  ? __ia32_sys_read (fs/read_write.c:730)
[   20.814286][  T195]  ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:949 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:401 (discriminator 4) ./include/linux/refcount.h:389 (discriminator 4) ./include/linux/refcount.h:432 (discriminator 4) ./include/linux/mmap_lock.h:196 (discriminator 4) ./include/linux/mmap_lock.h:217 (discriminator 4) ./include/linux/mmap_lock.h:264 (discriminator 4) arch/x86/mm/fault.c:1336 (discriminator 4))
[   20.814448][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   20.814595][  T195]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   20.814744][  T195]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[   20.814894][  T195]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   20.815041][  T195]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   20.815237][  T195] RIP: 0033:0x7f0ff03d4c5e
[   20.815414][  T195] 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
[   20.815939][  T195] RSP: 002b:00007ffd3dc42cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   20.816161][  T195] RAX: ffffffffffffffda RBX: 00007f0ff05505c0 RCX: 00007f0ff03d4c5e
[   20.816420][  T195] RDX: 0000000000000004 RSI: 000055ad4f4a6800 RDI: 0000000000000001
[   20.816642][  T195] RBP: 00007ffd3dc42cc0 R08: 0000000000000000 R09: 0000000000000000
[   20.816864][  T195] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004


Finger prints:
nsim_destroy:__nsim_dev_port_del:nsim_dev_reload_destroy:nsim_drv_remove:device_release_driver_internal