======================================
| [   14.076282][  T240] netdevsim netdevsim392 eni392np1: renamed from eth0
| [   18.189250][  T229] ------------[ cut here ]------------
| [   18.189905][  T229] kernel BUG at net/core/net-sysfs.c:2246!
| [   18.190390][  T229] Oops: invalid opcode: 0000 [#1] SMP KASAN
[   18.191136][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.191403][  T229] RIP: 0010:netdev_release (net/core/net-sysfs.c:2246 net/core/net-sysfs.c:2242)
[   18.191633][  T229] Code: 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 20 48 8b bb e0 fa ff ff e8 8c f4 d7 fe 48 89 ef 5b 5d e9 52 01 d8 fe 90 <0f> 0b e8 fa d7 de fe eb bc e8 53 d8 de fe eb d9 90 f3 0f 1e fa 0f
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 fc                	add    %bh,%ah
   4:	ff                   	lcall  (bad)
   5:	df 48 89             	fisttps -0x77(%rax)
   8:	fa                   	cli
   9:	48 c1 ea 03          	shr    $0x3,%rdx
   d:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
  11:	75 20                	jne    0x33
  13:	48 8b bb e0 fa ff ff 	mov    -0x520(%rbx),%rdi
  1a:	e8 8c f4 d7 fe       	call   0xfffffffffed7f4ab
  1f:	48 89 ef             	mov    %rbp,%rdi
  22:	5b                   	pop    %rbx
  23:	5d                   	pop    %rbp
  24:	e9 52 01 d8 fe       	jmp    0xfffffffffed8017b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	e8 fa d7 de fe       	call   0xfffffffffeded82b
  31:	eb bc                	jmp    0xffffffffffffffef
  33:	e8 53 d8 de fe       	call   0xfffffffffeded88b
  38:	eb d9                	jmp    0x13
  3a:	90                   	nop
  3b:	f3 0f 1e fa          	endbr64
  3f:	0f                   	.byte 0xf

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	e8 fa d7 de fe       	call   0xfffffffffeded801
   7:	eb bc                	jmp    0xffffffffffffffc5
   9:	e8 53 d8 de fe       	call   0xfffffffffeded861
   e:	eb d9                	jmp    0xffffffffffffffe9
  10:	90                   	nop
  11:	f3 0f 1e fa          	endbr64
  15:	0f                   	.byte 0xf
[   18.192387][  T229] RSP: 0018:ffffc90000ab78a8 EFLAGS: 00010297
[   18.192669][  T229] RAX: 0000000000000000 RBX: ffff888009b0a650 RCX: ffffffff85f02b51
[   18.193018][  T229] RDX: 1ffff110013614c6 RSI: ffffffff8625d540 RDI: ffff888009b0a630
[   18.193369][  T229] RBP: ffff888009b0a000 R08: 0000000000000001 R09: ffffed10013614d1
[   18.193701][  T229] R10: ffff888009b0a68b R11: ffffc90000ab75c8 R12: ffff88800d3c6200
[   18.194044][  T229] R13: 0000000000000000 R14: dead000000000122 R15: dead000000000100
[   18.194369][  T229] FS:  00007fc672037000(0000) GS:ffff8880a85fc000(0000) knlGS:0000000000000000
[   18.194748][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.195050][  T229] CR2: 00007f38cd34e100 CR3: 000000000a61b001 CR4: 0000000000772ef0
[   18.195371][  T229] PKRU: 55555554
[   18.195535][  T229] Call Trace:
[   18.195695][  T229]  <TASK>
[   18.195801][  T229]  device_release (drivers/base/core.c:2570)
[   18.196055][  T229]  kobject_cleanup (lib/kobject.c:693)
[   18.196274][  T229]  netdev_run_todo (./include/linux/list.h:381 net/core/dev.c:11670)
[   18.196494][  T229]  ? kasan_quarantine_put (mm/kasan/quarantine.c:234 (discriminator 1))
[   18.196736][  T229]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.196955][  T229]  ? generic_xdp_install (net/core/dev.c:11630)
[   18.197171][  T229]  ? kfree (mm/slub.c:6630 mm/slub.c:6837)
[   18.197341][  T229] nsim_destroy (drivers/net/netdevsim/netdev.c:1186) netdevsim
[   18.197599][  T229] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:441 drivers/net/netdevsim/dev.c:1474) netdevsim
[   18.197969][  T229] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1483 drivers/net/netdevsim/dev.c:1707) netdevsim
[   18.198257][  T229] nsim_drv_remove (drivers/net/netdevsim/dev.c:1724) netdevsim
[   18.198483][  T229]  device_release_driver_internal (drivers/base/dd.c:1276 drivers/base/dd.c:1297)
[   18.198757][  T229]  ? klist_put (lib/klist.c:220)
[   18.198954][  T229]  bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:586)
[   18.199162][  T229]  device_del (drivers/base/core.c:3879)
[   18.199335][  T229]  ? __device_link_del (drivers/base/core.c:3833)
[   18.199552][  T229]  device_unregister (drivers/base/core.c:3796 drivers/base/core.c:3920)
[   18.199764][  T229] del_device_store (drivers/net/netdevsim/bus.c:248) netdevsim
[   18.200158][  T229]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:215) netdevsim
[   18.200567][  T229]  ? sysfs_file_kobj (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/linux/rcupdate.h:1195 fs/sysfs/file.c:24)
[   18.200923][  T229]  ? sysfs_file_kobj (fs/sysfs/file.c:26)
[   18.201263][  T229]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[   18.201597][  T229]  kernfs_fop_write_iter (fs/kernfs/file.c:88 fs/kernfs/file.c:356)
[   18.201940][  T229]  vfs_write (fs/read_write.c:594 fs/read_write.c:686)
[   18.202204][  T229]  ? kernel_write (fs/read_write.c:667)
[   18.202778][  T229]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.203138][  T229]  ksys_write (fs/read_write.c:738)
[   18.203580][  T229]  ? __ia32_sys_read (fs/read_write.c:728)
[   18.203823][  T229]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.204271][  T229]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   18.204714][  T229] RIP: 0033:0x7fc672137257
[   18.205057][  T229] Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0f 00                	(bad)
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   18.205828][  T229] RSP: 002b:00007ffc77802838 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   18.206149][  T229] RAX: ffffffffffffffda RBX: 00007fc672233780 RCX: 00007fc672137257
[   18.206619][  T229] RDX: 0000000000000004 RSI: 000055c22aaa1e70 RDI: 0000000000000001
[   18.206931][  T229] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007fc6721e9d20
[   18.207244][  T229] R10: 00007fc6721e9c20 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
netdev_release:device_release:kobject_cleanup:netdev_run_todo:nsim_destroy