======================================
| [   18.521749][  T260] netdevsim netdevsim10 eni10np3: renamed from eth2
| [   23.980121][  T314] ------------[ cut here ]------------
| [   23.980700][  T314] kernel BUG at net/core/net-sysfs.c:2246!
| [   23.981197][  T314] Oops: invalid opcode: 0000 [#1] SMP KASAN
[   23.981869][  T314] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.982149][  T314] RIP: 0010:netdev_release (net/core/net-sysfs.c:2246 net/core/net-sysfs.c:2242)
[   23.982382][  T314] 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
[   23.983174][  T314] RSP: 0018:ffffc900005273c8 EFLAGS: 00010297
[   23.983482][  T314] RAX: 0000000000000000 RBX: ffff88800af82650 RCX: ffffffffb2902b51
[   23.983827][  T314] RDX: 1ffff110015f04c6 RSI: ffffffffb2c5d540 RDI: ffff88800af82630
[   23.984156][  T314] RBP: ffff88800af82000 R08: 0000000000000001 R09: ffffed10015f04d1
[   23.984480][  T314] R10: ffff88800af8268b R11: ffffffffb3918cd8 R12: ffff888004cfac00
[   23.984812][  T314] R13: 0000000000000000 R14: dead000000000122 R15: dead000000000100
[   23.985135][  T314] FS:  00007f82d87e7800(0000) GS:ffff88808197c000(0000) knlGS:0000000000000000
[   23.985514][  T314] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.985790][  T314] CR2: 000000000041f330 CR3: 000000000ea87001 CR4: 0000000000772ef0
[   23.986116][  T314] PKRU: 55555554
[   23.986277][  T314] Call Trace:
[   23.986437][  T314]  <TASK>
[   23.986547][  T314]  device_release (drivers/base/core.c:2570)
[   23.986760][  T314]  kobject_cleanup (lib/kobject.c:693)
[   23.986974][  T314]  netdev_run_todo (./include/linux/list.h:381 net/core/dev.c:11670)
[   23.987186][  T314]  ? kasan_quarantine_put (mm/kasan/quarantine.c:234 (discriminator 1))
[   23.987400][  T314]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.987632][  T314]  ? generic_xdp_install (net/core/dev.c:11630)
[   23.987842][  T314]  ? kfree (mm/slub.c:6630 mm/slub.c:6837)
[   23.988020][  T314] nsim_destroy (drivers/net/netdevsim/netdev.c:1186) netdevsim
[   23.988258][  T314] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:441 drivers/net/netdevsim/dev.c:1474) netdevsim
[   23.988531][  T314] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1483 drivers/net/netdevsim/dev.c:1707) netdevsim
[   23.988799][  T314] nsim_dev_reload_down (drivers/net/netdevsim/dev.c:984) netdevsim
[   23.989074][  T314]  devlink_reload (net/devlink/dev.c:462)
[   23.989287][  T314]  ? devlink_notify_unregister (net/devlink/dev.c:446)
[   23.989499][  T314]  ? devlink_resources_validate (net/devlink/resource.c:311)
[   23.989759][  T314]  devlink_nl_reload_doit (net/devlink/dev.c:584)
[   23.989968][  T314]  ? devlink_reload (net/devlink/dev.c:520)
[   23.990176][  T314]  ? __nla_parse (lib/nlattr.c:732)
[   23.990393][  T314]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1117)
[   23.990600][  T314]  ? genl_family_rcv_msg_attrs_parse.constprop.0 (net/netlink/genetlink.c:1088)
[   23.990920][  T314]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   23.991138][  T314]  ? cap_capable (security/commoncap.c:132)
[   23.991389][  T314]  genl_family_rcv_msg (net/netlink/genetlink.c:1195)
[   23.991607][  T314]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1160)
[   23.991895][  T314]  ? devlink_nl_pre_doit_port (net/devlink/netlink.c:257)
[   23.992110][  T314]  ? devlink_reload (net/devlink/dev.c:520)
[   23.992318][  T314]  ? devlink_nl_post_doit (net/devlink/netlink.c:288)
[   23.992550][  T314]  genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211)
[   23.992763][  T314]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   23.992973][  T314]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1201)
[   23.993186][  T314]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   23.993415][  T314]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   23.993635][  T314]  genl_rcv (net/netlink/genetlink.c:1220)
[   23.993809][  T314]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   23.994028][  T314]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   23.994250][  T314]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.994464][  T314]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   23.994684][  T314]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   23.994912][  T314]  ? __might_fault (mm/memory.c:7081 mm/memory.c:7075)
[   23.995133][  T314]  __sys_sendto (net/socket.c:727 net/socket.c:742 net/socket.c:2244)
[   23.995351][  T314]  ? __ia32_sys_getpeername (net/socket.c:2211)
[   23.995576][  T314]  ? lock_vma_under_rcu (mm/mmap_lock.c:259)
[   23.995796][  T314]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.996010][  T314]  ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532)
[   23.996234][  T314]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.996470][  T314]  ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532)
[   23.996834][  T314]  ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:143 ./include/linux/mmap_lock.h:182 arch/x86/mm/fault.c:1338)
[   23.997336][  T314]  __x64_sys_sendto (net/socket.c:2247)
[   23.997570][  T314]  ? 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)
[   23.997787][  T314]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.998002][  T314]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.998230][  T314]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   23.998504][  T314] RIP: 0033:0x7f82d89b527a
[   23.998733][  T314] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[   23.999495][  T314] RSP: 002b:00007ffc535a4cc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   23.999946][  T314] RAX: ffffffffffffffda RBX: 0000000004f8bb20 RCX: 00007f82d89b527a
[   24.000273][  T314] RDX: 0000000000000034 RSI: 0000000004f8bb20 RDI: 0000000000000005
[   24.000741][  T314] RBP: 0000000004f8b910 R08: 00007f82d8b99200 R09: 000000000000000c
[   24.001055][  T314] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f510


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