======================================
| 0
| xx__-> [   21.621397][  T245] ------------[ cut here ]------------
| [   21.621727][  T245] WARNING: drivers/net/netdevsim/netdev.c:1234 at nsim_destroy+0x128/0x7b0 [netdevsim], CPU#2: rmmod/245
| [   21.622375][  T245] Modules linked in: netconsole netdevsim(-)
[   21.623304][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.623673][  T245] RIP: 0010:nsim_destroy (drivers/net/netdevsim/netdev.c:1234 (discriminator 2)) netdevsim
[   21.624057][  T245] 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 ac f5 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 f0 f4
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 ac f5       	call   0xfffffffff5ac17a2
  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 f0 f4       	call   0xfffffffff4f02322

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 f0 f4       	call   0xfffffffff4f022f8
[   21.624996][  T245] RSP: 0018:ffa0000000957b58 EFLAGS: 00010293
[   21.625351][  T245] RAX: 0000000000000000 RBX: ff1100000bc4ad00 RCX: ff1100000bc4b448
[   21.625726][  T245] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dffffc0000000000
[   21.626099][  T245] RBP: ff1100000bc4b448 R08: ff1100000bc4b448 R09: 0000000000000000
[   21.626623][  T245] R10: 1fe2200001789689 R11: 0000000000000001 R12: ff11000008c15498
[   21.627129][  T245] R13: dffffc0000000000 R14: ff11000008c15000 R15: ffffffffc0331380
[   21.627667][  T245] FS:  00007f0503014bc0(0000) GS:ff1100007cb85000(0000) knlGS:0000000000000000
[   21.628257][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.628711][  T245] CR2: 000055d9ecc73bc8 CR3: 0000000004cb4002 CR4: 0000000000771ef0
[   21.629259][  T245] PKRU: 55555554
[   21.629563][  T245] Call Trace:
[   21.629860][  T245]  <TASK>
[   21.630066][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   21.630419][  T245] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:444 drivers/net/netdevsim/dev.c:1529) netdevsim
[   21.630882][  T245]  ? devl_lock_is_held (net/devlink/core.c:285 (discriminator 1))
[   21.631231][  T245] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1538 (discriminator 4) drivers/net/netdevsim/dev.c:1764 (discriminator 4)) netdevsim
[   21.631685][  T245] nsim_drv_remove (drivers/net/netdevsim/dev.c:1781) netdevsim
[   21.632043][  T245]  device_release_driver_internal (drivers/base/dd.c:1286 drivers/base/dd.c:1307)
[   21.632371][  T245]  bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:623)
[   21.632684][  T245]  device_del (drivers/base/core.c:3879)
[   21.632942][  T245]  ? __device_link_del (drivers/base/core.c:3833)
[   21.633235][  T245]  device_unregister (drivers/base/core.c:3796 drivers/base/core.c:3920)
[   21.633517][  T245] nsim_bus_exit (drivers/net/netdevsim/bus.c:530 (discriminator 4)) netdevsim
[   21.633853][  T245] nsim_module_exit (drivers/net/netdevsim/netdev.c:1290) netdevsim
[   21.634208][  T245]  __do_sys_delete_module (kernel/module/main.c:836)
[   21.634500][  T245]  ? module_flags (kernel/module/main.c:778)
[   21.634816][  T245]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[   21.635128][  T245]  ? 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)
[   21.635422][  T245]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   21.635735][  T245]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[   21.636042][  T245]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   21.636341][  T245]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   21.636706][  T245] RIP: 0033:0x7f050310c37b
[   21.637011][  T245] Code: 73 01 c3 48 8b 0d 85 2a 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 55 2a 0f 00 f7 d8 64 89 01 48
All code
========
   0:	73 01                	jae    0x3
   2:	c3                   	ret
   3:	48 8b 0d 85 2a 0f 00 	mov    0xf2a85(%rip),%rcx        # 0xf2a8f
   a:	f7 d8                	neg    %eax
   c:	64 89 01             	mov    %eax,%fs:(%rcx)
   f:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
  13:	c3                   	ret
  14:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  1b:	00 00 00 
  1e:	90                   	nop
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 b0 00 00 00       	mov    $0xb0,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 55 2a 0f 00 	mov    0xf2a55(%rip),%rcx        # 0xf2a8f
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 55 2a 0f 00 	mov    0xf2a55(%rip),%rcx        # 0xf2a65
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.637931][  T245] RSP: 002b:00007ffe424265a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000b0
[   21.638342][  T245] RAX: ffffffffffffffda RBX: 000055d9ecc6a7e0 RCX: 00007f050310c37b
[   21.638770][  T245] RDX: 0000000000000003 RSI: 0000000000000800 RDI: 000055d9ecc6a840
[   21.639186][  T245] RBP: 00007ffe424265d0 R08: 0000000000000000 R09: 0000000000000000
[   21.639602][  T245] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
[   21.640023][  T245] R13: 00007ffe424276d1 R14: 00007ffe42426820 R15: 0000000000000000
| [   24.004575][  T187] ------------[ cut here ]------------
| [   24.004812][  T187] WARNING: drivers/net/netdevsim/netdev.c:1234 at nsim_destroy+0x128/0x7b0 [netdevsim], CPU#3: bash/187
| [   24.005139][  T187] Modules linked in: netdevsim netconsole [last unloaded: netdevsim]
| [   24.005767][  T187] Tainted: [W]=WARN
[   24.005900][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.006092][  T187] RIP: 0010:nsim_destroy (drivers/net/netdevsim/netdev.c:1234 (discriminator 2)) netdevsim
[   24.006296][  T187] 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 ac f5 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 f0 f4
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 ac f5       	call   0xfffffffff5ac17a2
  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 f0 f4       	call   0xfffffffff4f02322

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 f0 f4       	call   0xfffffffff4f022f8
[   24.006865][  T187] RSP: 0018:ffa00000008d79b8 EFLAGS: 00010293
[   24.007061][  T187] RAX: 0000000000000000 RBX: ff1100000c6bad00 RCX: ff1100000c6bb448
[   24.007293][  T187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dffffc0000000000
[   24.007527][  T187] RBP: ff1100000c6bb448 R08: ff1100000c6bb448 R09: 0000000000000000
[   24.007773][  T187] R10: 1fe22000018d7689 R11: 0000000000000001 R12: ff1100000c775498
[   24.008135][  T187] R13: dffffc0000000000 R14: ff1100000c775000 R15: ffffffffc0331380
[   24.008395][  T187] FS:  00007f9453a04bc0(0000) GS:ff1100007cc05000(0000) knlGS:0000000000000000
[   24.008704][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.008943][  T187] CR2: 0000555abc1632ac CR3: 000000000cf25001 CR4: 0000000000771ef0
[   24.009194][  T187] PKRU: 55555554
[   24.009315][  T187] Call Trace:
[   24.009432][  T187]  <TASK>
[   24.009513][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   24.009681][  T187] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:444 drivers/net/netdevsim/dev.c:1529) netdevsim
[   24.009882][  T187]  ? devl_lock_is_held (net/devlink/core.c:285 (discriminator 1))
[   24.010037][  T187] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1538 (discriminator 4) drivers/net/netdevsim/dev.c:1764 (discriminator 4)) netdevsim
[   24.010232][  T187] nsim_drv_remove (drivers/net/netdevsim/dev.c:1781) netdevsim
[   24.010404][  T187]  device_release_driver_internal (drivers/base/dd.c:1286 drivers/base/dd.c:1307)
[   24.010605][  T187]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[   24.010760][  T187]  bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:623)
[   24.010921][  T187]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[   24.011074][  T187]  device_del (drivers/base/core.c:3879)
[   24.011192][  T187]  ? __device_link_del (drivers/base/core.c:3833)
[   24.011353][  T187]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[   24.011508][  T187]  device_unregister (drivers/base/core.c:3796 drivers/base/core.c:3920)
[   24.011670][  T187] del_device_store (drivers/net/netdevsim/bus.c:248) netdevsim
[   24.011865][  T187]  ? 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))
[   24.012023][  T187]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:215) netdevsim
[   24.012216][  T187]  ? sysfs_file_kobj (fs/sysfs/file.c:26)
[   24.012374][  T187]  ? sysfs_kf_write (fs/sysfs/file.c:139)
[   24.012527][  T187]  kernfs_fop_write_iter (fs/kernfs/file.c:88 fs/kernfs/file.c:356)
[   24.012689][  T187]  ? kernfs_ops (fs/kernfs/file.c:312)
[   24.012805][  T187]  new_sync_write (fs/read_write.c:596 (discriminator 1))
[   24.012969][  T187]  ? new_sync_read (fs/read_write.c:586)
[   24.013126][  T187]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   24.013280][  T187]  ? ksys_write (fs/read_write.c:741)
[   24.013442][  T187]  vfs_write (fs/read_write.c:688)
[   24.013568][  T187]  ksys_write (fs/read_write.c:741)
[   24.013686][  T187]  ? __ia32_sys_read (fs/read_write.c:730)
[   24.013842][  T187]  ? 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)
[   24.014006][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   24.014168][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[   24.014337][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   24.014494][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   24.014697][  T187] RIP: 0033:0x7f9453a74c5e
[   24.014866][  T187] 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
[   24.015420][  T187] RSP: 002b:00007ffcef82a380 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   24.015659][  T187] RAX: ffffffffffffffda RBX: 00007f9453bf05c0 RCX: 00007f9453a74c5e
[   24.015894][  T187] RDX: 0000000000000004 RSI: 0000555abc1b4980 RDI: 0000000000000001
[   24.016127][  T187] RBP: 00007ffcef82a390 R08: 0000000000000000 R09: 0000000000000000
[   24.016355][  T187] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
[   24.016589][  T187] R13: 0000000000000004 R14: 0000555abc1b4980 R15: 0000555abc1b7790
| [   27.930240][  T187] ------------[ cut here ]------------
| [   27.930481][  T187] WARNING: drivers/net/netdevsim/netdev.c:1234 at nsim_destroy+0x128/0x7b0 [netdevsim], CPU#0: bash/187
| [   27.930794][  T187] Modules linked in: netdevsim netconsole [last unloaded: netdevsim]
| [   27.931376][  T187] Tainted: [W]=WARN
[   27.931490][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.931685][  T187] RIP: 0010:nsim_destroy (drivers/net/netdevsim/netdev.c:1234 (discriminator 2)) netdevsim
[   27.931894][  T187] 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 ac f5 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 f0 f4
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 ac f5       	call   0xfffffffff5ac17a2
  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 f0 f4       	call   0xfffffffff4f02322

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 f0 f4       	call   0xfffffffff4f022f8
[   27.932428][  T187] RSP: 0018:ffa00000008d79b8 EFLAGS: 00010293
[   27.932624][  T187] RAX: 0000000000000000 RBX: ff1100000dd1ad00 RCX: ff1100000dd1b448
[   27.932848][  T187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dffffc0000000000
[   27.933078][  T187] RBP: ff1100000dd1b448 R08: ff1100000dd1b448 R09: 0000000000000000
[   27.933305][  T187] R10: 1fe2200001ba3689 R11: 0000000000000001 R12: ff11000011505498
[   27.933528][  T187] R13: dffffc0000000000 R14: ff11000011505000 R15: ffffffffc0331380
[   27.933842][  T187] FS:  00007f9453a04bc0(0000) GS:ff1100007ca85000(0000) knlGS:0000000000000000
[   27.934113][  T187] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.934306][  T187] CR2: 0000555abc1632ac CR3: 000000000cf25003 CR4: 0000000000771ef0
[   27.934537][  T187] PKRU: 55555554
[   27.934651][  T187] Call Trace:
[   27.934762][  T187]  <TASK>
[   27.934838][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   27.935001][  T187] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:444 drivers/net/netdevsim/dev.c:1529) netdevsim
[   27.935192][  T187]  ? devl_lock_is_held (net/devlink/core.c:285 (discriminator 1))
[   27.935348][  T187] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1538 (discriminator 4) drivers/net/netdevsim/dev.c:1764 (discriminator 4)) netdevsim
[   27.935541][  T187] nsim_drv_remove (drivers/net/netdevsim/dev.c:1781) netdevsim
[   27.935692][  T187]  device_release_driver_internal (drivers/base/dd.c:1286 drivers/base/dd.c:1307)
[   27.935889][  T187]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[   27.936039][  T187]  bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:623)
[   27.936190][  T187]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[   27.936344][  T187]  device_del (drivers/base/core.c:3879)
[   27.936457][  T187]  ? __device_link_del (drivers/base/core.c:3833)
[   27.936616][  T187]  ? sysfs_file_ops (fs/sysfs/file.c:135)
[   27.936764][  T187]  device_unregister (drivers/base/core.c:3796 drivers/base/core.c:3920)
[   27.936919][  T187] del_device_store (drivers/net/netdevsim/bus.c:248) netdevsim
[   27.937107][  T187]  ? 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))
[   27.937258][  T187]  ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:215) netdevsim
[   27.937450][  T187]  ? sysfs_file_kobj (fs/sysfs/file.c:26)
[   27.937606][  T187]  ? sysfs_kf_write (fs/sysfs/file.c:139)
[   27.937760][  T187]  kernfs_fop_write_iter (fs/kernfs/file.c:88 fs/kernfs/file.c:356)
[   27.937916][  T187]  ? kernfs_ops (fs/kernfs/file.c:312)
[   27.938028][  T187]  new_sync_write (fs/read_write.c:596 (discriminator 1))
[   27.938179][  T187]  ? new_sync_read (fs/read_write.c:586)
[   27.938335][  T187]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[   27.938485][  T187]  ? ksys_write (fs/read_write.c:741)
[   27.938645][  T187]  vfs_write (fs/read_write.c:688)
[   27.938762][  T187]  ksys_write (fs/read_write.c:741)
[   27.938875][  T187]  ? __ia32_sys_read (fs/read_write.c:730)
[   27.939030][  T187]  ? 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)
[   27.939182][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1))
[   27.939339][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[   27.939493][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   27.939652][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   27.939839][  T187] RIP: 0033:0x7f9453a74c5e
[   27.940001][  T187] 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
[   27.940540][  T187] RSP: 002b:00007ffcef82a380 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   27.940770][  T187] RAX: ffffffffffffffda RBX: 00007f9453bf05c0 RCX: 00007f9453a74c5e
[   27.941001][  T187] RDX: 0000000000000004 RSI: 0000555abc1b4980 RDI: 0000000000000001
[   27.941225][  T187] RBP: 00007ffcef82a390 R08: 0000000000000000 R09: 0000000000000000
[   27.941461][  T187] 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