======================================
| [   16.451443][  T244] netdevsim netdevsim1337 eni1337np1: renamed from eth0
| [   16.575579][  T249] ------------[ cut here ]------------
| [   16.576450][  T249] kernel BUG at net/core/net-sysfs.c:2246!
| [   16.578445][  T249] Oops: invalid opcode: 0000 [#1] SMP KASAN
[   16.579582][  T249] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.580006][  T249] RIP: 0010:netdev_release (net/core/net-sysfs.c:2246 net/core/net-sysfs.c:2242)
[   16.580272][  T249] 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
[   16.581148][  T249] RSP: 0018:ffffc90000aa73c8 EFLAGS: 00010297
[   16.581447][  T249] RAX: 0000000000000000 RBX: ffff888009b92650 RCX: ffffffff8b902b51
[   16.581825][  T249] RDX: 1ffff110013724c6 RSI: ffffffff8bc5d540 RDI: ffff888009b92630
[   16.582202][  T249] RBP: ffff888009b92000 R08: 0000000000000001 R09: ffffed10013724d1
[   16.582665][  T249] R10: ffff888009b9268b R11: ffffc90000aa70e8 R12: ffff88800a7f5c00
[   16.583211][  T249] R13: 0000000000000000 R14: dead000000000122 R15: dead000000000100
[   16.583770][  T249] FS:  00007fb9b6490800(0000) GS:ffff8880a897c000(0000) knlGS:0000000000000000
[   16.584398][  T249] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.584896][  T249] CR2: 00007fb9b66fef73 CR3: 0000000005124006 CR4: 0000000000772ef0
[   16.585442][  T249] PKRU: 55555554
[   16.585723][  T249] Call Trace:
[   16.586003][  T249]  <TASK>
[   16.586180][  T249]  device_release (drivers/base/core.c:2570)
[   16.586541][  T249]  kobject_cleanup (lib/kobject.c:693)
[   16.586893][  T249]  netdev_run_todo (./include/linux/list.h:381 net/core/dev.c:11670)
[   16.587216][  T249]  ? kasan_quarantine_put (mm/kasan/quarantine.c:234 (discriminator 1))
[   16.587456][  T249]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.587669][  T249]  ? generic_xdp_install (net/core/dev.c:11630)
[   16.587881][  T249]  ? kfree (mm/slub.c:6630 mm/slub.c:6837)
[   16.588043][  T249] nsim_destroy (drivers/net/netdevsim/netdev.c:1186) netdevsim
[   16.588299][  T249] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:441 drivers/net/netdevsim/dev.c:1474) netdevsim
[   16.588568][  T249] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1483 drivers/net/netdevsim/dev.c:1707) netdevsim
[   16.588986][  T249] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:984) netdevsim
[   16.589437][  T249]  devlink_reload (net/devlink/dev.c:462)
[   16.589780][  T249]  ? devlink_notify_unregister (net/devlink/dev.c:446)
[   16.590127][  T249]  ? ns_capable (./include/linux/security.h:695 kernel/capability.c:342 kernel/capability.c:363)
[   16.590385][  T249]  devlink_nl_reload_doit (net/devlink/dev.c:584)
[   16.590749][  T249]  ? devlink_reload (net/devlink/dev.c:520)
[   16.591126][  T249]  ? __nla_parse (lib/nlattr.c:732)
[   16.591465][  T249]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1117)
[   16.591812][  T249]  ? genl_family_rcv_msg_attrs_parse.constprop.0 (net/netlink/genetlink.c:1088)
[   16.592221][  T249]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   16.592507][  T249]  ? cap_capable (security/commoncap.c:132)
[   16.592709][  T249]  genl_family_rcv_msg (net/netlink/genetlink.c:1195)
[   16.592947][  T249]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1160)
[   16.593225][  T249]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:257)
[   16.593467][  T249]  ? devlink_reload (net/devlink/dev.c:520)
[   16.593664][  T249]  ? devlink_nl_post_doit (net/devlink/netlink.c:288)
[   16.593876][  T249]  genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211)
[   16.594073][  T249]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   16.594292][  T249]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1201)
[   16.594484][  T249]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   16.594697][  T249]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   16.594978][  T249]  genl_rcv (net/netlink/genetlink.c:1220)
[   16.595128][  T249]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   16.595348][  T249]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   16.595542][  T249]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   16.595744][  T249]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   16.595960][  T249]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   16.596155][  T249]  ? __might_fault (mm/memory.c:7081 mm/memory.c:7075)
[   16.596435][  T249]  __sys_sendto (net/socket.c:727 net/socket.c:742 net/socket.c:2244)
[   16.596713][  T249]  ? __ia32_sys_getpeername (net/socket.c:2211)
[   16.597058][  T249]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   16.597386][  T249]  ? trace_rseq_update (./include/trace/events/rseq.h:11 (discriminator 21))
[   16.597720][  T249]  ? rseq_update_cpu_node_id (kernel/rseq.c:189 (discriminator 10))
[   16.598043][  T249]  ? __rseq_handle_notify_resume (kernel/rseq.c:442)
[   16.598452][  T249]  ? rseq_get_rseq_cs.isra.0 (kernel/rseq.c:425)
[   16.598818][  T249]  ? __ia32_sys_open (fs/open.c:1463)
[   16.599148][  T249]  __x64_sys_sendto (net/socket.c:2247)
[   16.599424][  T249]  ? do_syscall_64 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/entry-common.h:124 arch/x86/entry/syscall_64.c:90)
[   16.599705][  T249]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   16.600028][  T249]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   16.600366][  T249]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   16.600763][  T249] RIP: 0033:0x7fb9b665e27a
[   16.601126][  T249] Code: Unable to access opcode bytes at 0x7fb9b665e250.

Code starting with the faulting instruction
===========================================
[   16.601548][  T249] RSP: 002b:00007ffc995b83c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   16.602079][  T249] RAX: ffffffffffffffda RBX: 00000000005ffb20 RCX: 00007fb9b665e27a
[   16.602577][  T249] RDX: 0000000000000040 RSI: 00000000005ffb20 RDI: 0000000000000005
[   16.603089][  T249] RBP: 00000000005ff910 R08: 00007fb9b6842200 R09: 000000000000000c
[   16.603597][  T249] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f510


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