======================================
| 0
| xx__-> [    9.551256][  T228] ------------[ cut here ]------------
| [ 9.551565][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.552152][  T228] Modules linked in: netdevsim
[    9.552693][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.552927][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.553194][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.553844][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[    9.554095][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.554374][  T228] RDX: 0000000000000000 RSI: ffff888009b7ac98 RDI: ffff88800235d0a8
[    9.554654][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[    9.554932][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[    9.555226][  T228] R13: ffff888009b7a128 R14: ffff888009b7a008 R15: ffff888009b7a000
[    9.555510][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[    9.555833][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.556085][  T228] CR2: 000055b07b40e47c CR3: 000000000be0a003 CR4: 0000000000772ef0
[    9.556366][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.556646][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.557013][  T228] PKRU: 55555554
[    9.557161][  T228] Call Trace:
[    9.557305][  T228]  <TASK>
[ 9.557406][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.557614][ T228] ? __warn (kernel/panic.c:748) 
[ 9.557759][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.557948][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.558152][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.558297][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.558484][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.558682][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.558877][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.559130][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.559335][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.559524][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.559721][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.559920][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.560135][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.560376][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.560634][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 9.560876][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.561081][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 9.561292][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 9.561531][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.561725][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.561916][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 9.562121][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.562313][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.562463][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.562656][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 9.562852][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.563058][ T228] ksys_write (fs/read_write.c:731) 
[ 9.563201][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.563401][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.563588][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.563816][  T228] RIP: 0033:0x7fd034db7b77
[ 9.564025][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[    9.564675][  T228] RSP: 002b:00007ffdf48fccc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.564958][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[    9.565260][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[    9.565543][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[    9.565822][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[    9.566122][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  135.163009][  T228] ------------[ cut here ]------------
| [ 135.163265][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  135.163648][  T228] Modules linked in: netdevsim
| [  135.164260][  T228] Tainted: [W]=WARN
[  135.164421][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 135.164658][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 135.164911][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  135.165570][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  135.165812][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  135.166106][  T228] RDX: 0000000000000000 RSI: ffff888009f6ac98 RDI: ffff88800235d0a8
[  135.166390][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  135.166671][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  135.166964][  T228] R13: ffff888009f6a128 R14: ffff888009f6a008 R15: ffff888009f6a000
[  135.167275][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  135.167633][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  135.167910][  T228] CR2: 000055b07b4334f8 CR3: 000000000be0a001 CR4: 0000000000772ef0
[  135.168228][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  135.168537][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  135.168856][  T228] PKRU: 55555554
[  135.169022][  T228] Call Trace:
[  135.169178][  T228]  <TASK>
[ 135.169289][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 135.169498][ T228] ? __warn (kernel/panic.c:748) 
[ 135.169657][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 135.169855][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 135.170121][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 135.170287][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 135.170508][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 135.170734][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 135.170959][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 135.171242][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 135.171460][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 135.171681][ T228] register_netdevice (net/core/dev.c:11003) 
[ 135.171900][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 135.172135][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 135.172368][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 135.172641][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 135.172926][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 135.173212][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 135.173431][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 135.173658][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 135.173930][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 135.174150][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 135.174347][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 135.174548][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 135.174750][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 135.174918][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 135.175147][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 135.175356][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 135.175563][ T228] ksys_write (fs/read_write.c:731) 
[ 135.175720][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 135.175929][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 135.176163][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  135.176421][  T228] RIP: 0033:0x7fd034db7b77
[ 135.176636][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  135.177347][  T228] RSP: 002b:00007ffdf48fb958 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  135.177663][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  135.177971][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  135.178289][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  135.178601][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  135.178912][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  136.690927][  T228] ------------[ cut here ]------------
| [ 136.691222][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  136.691624][  T228] Modules linked in: netdevsim
| [  136.692278][  T228] Tainted: [W]=WARN
[  136.692449][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 136.692713][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 136.693009][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  136.693712][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  136.693972][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  136.694281][  T228] RDX: 0000000000000000 RSI: ffff88800c34ac98 RDI: ffff88800235d0a8
[  136.694570][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  136.694858][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  136.695210][  T228] R13: ffff88800c34a128 R14: ffff88800c34a008 R15: ffff88800c34a000
[  136.695503][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  136.695856][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  136.696127][  T228] CR2: 000055b07b40e47c CR3: 000000000be0a001 CR4: 0000000000772ef0
[  136.696439][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  136.696748][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  136.697062][  T228] PKRU: 55555554
[  136.697216][  T228] Call Trace:
[  136.697370][  T228]  <TASK>
[ 136.697479][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 136.697689][ T228] ? __warn (kernel/panic.c:748) 
[ 136.697848][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 136.698065][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 136.698274][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 136.698431][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 136.698631][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 136.698841][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 136.699076][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 136.699337][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 136.699565][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 136.699772][ T228] register_netdevice (net/core/dev.c:11003) 
[ 136.699999][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 136.700212][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 136.700458][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 136.700717][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 136.701001][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 136.701263][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 136.701481][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 136.701706][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 136.702000][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 136.702211][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 136.702413][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 136.702613][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 136.702821][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 136.703008][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 136.703220][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 136.703467][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 136.703682][ T228] ksys_write (fs/read_write.c:731) 
[ 136.703848][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 136.704069][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 136.704270][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  136.704509][  T228] RIP: 0033:0x7fd034db7b77
[ 136.704738][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  136.705417][  T228] RSP: 002b:00007ffdf48fb958 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  136.705833][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  136.706144][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  136.706461][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  136.706758][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  136.707061][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  138.165680][  T228] ------------[ cut here ]------------
| [ 138.165901][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  138.167031][  T228] Modules linked in: netdevsim
| [  138.167598][  T228] Tainted: [W]=WARN
[  138.167738][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 138.167970][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 138.168213][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  138.168852][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  138.169092][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  138.169365][  T228] RDX: 0000000000000000 RSI: ffff888008aaac98 RDI: ffff88800235d0a8
[  138.169637][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  138.169914][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  138.170194][  T228] R13: ffff888008aaa128 R14: ffff888008aaa008 R15: ffff888008aaa000
[  138.170477][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  138.170800][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  138.171040][  T228] CR2: 000055b07b40e47c CR3: 000000000be0a002 CR4: 0000000000772ef0
[  138.171315][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  138.171585][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  138.171860][  T228] PKRU: 55555554
[  138.172011][  T228] Call Trace:
[  138.172152][  T228]  <TASK>
[ 138.172248][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 138.172437][ T228] ? __warn (kernel/panic.c:748) 
[ 138.172586][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 138.172772][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 138.172968][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 138.173123][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 138.173316][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 138.173516][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 138.173710][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 138.173949][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 138.174150][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 138.174340][ T228] register_netdevice (net/core/dev.c:11003) 
[ 138.174530][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 138.174731][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 138.174933][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 138.175182][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 138.175441][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 138.175684][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 138.175871][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 138.176080][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 138.176322][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 138.176509][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 138.176697][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 138.176888][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 138.177088][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 138.177247][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 138.177438][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 138.177632][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 138.177827][ T228] ksys_write (fs/read_write.c:731) 
[ 138.177970][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 138.178175][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 138.178363][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  138.178591][  T228] RIP: 0033:0x7fd034db7b77
[ 138.178783][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  138.179433][  T228] RSP: 002b:00007ffdf48fb958 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  138.179713][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  138.179999][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  138.180272][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  138.180563][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  138.180838][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  139.667359][  T228] ------------[ cut here ]------------
| [ 139.667615][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  139.669208][  T228] Modules linked in: netdevsim
| [  139.669821][  T228] Tainted: [W]=WARN
[  139.669971][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 139.670389][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 139.670650][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  139.671449][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  139.671701][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  139.672008][  T228] RDX: 0000000000000000 RSI: ffff888009cc2c98 RDI: ffff88800235d0a8
[  139.672308][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  139.672606][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  139.672903][  T228] R13: ffff888009cc2128 R14: ffff888009cc2008 R15: ffff888009cc2000
[  139.673210][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  139.673554][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  139.673809][  T228] CR2: 000055b07b440018 CR3: 000000000be0a002 CR4: 0000000000772ef0
[  139.674113][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  139.674407][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  139.674700][  T228] PKRU: 55555554
[  139.674848][  T228] Call Trace:
[  139.675008][  T228]  <TASK>
[ 139.675116][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 139.675320][ T228] ? __warn (kernel/panic.c:748) 
[ 139.675475][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 139.675679][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 139.675886][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 139.676050][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 139.676253][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 139.676469][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 139.676682][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 139.676940][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 139.677168][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 139.677377][ T228] register_netdevice (net/core/dev.c:11003) 
[ 139.677584][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 139.677799][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 139.678032][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 139.678299][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 139.678575][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 139.678841][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 139.679055][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 139.679268][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 139.679532][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 139.679735][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 139.679940][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 139.680155][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 139.680366][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 139.680538][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 139.680745][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 139.680963][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 139.681187][ T228] ksys_write (fs/read_write.c:731) 
[ 139.681344][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 139.681558][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 139.681765][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  139.682027][  T228] RIP: 0033:0x7fd034db7b77
[ 139.682237][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  139.682941][  T228] RSP: 002b:00007ffdf48fb958 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  139.683253][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  139.683555][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  139.683858][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  139.684174][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  139.684474][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  141.156510][  T228] ------------[ cut here ]------------
| [ 141.156737][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  141.157146][  T228] Modules linked in: netdevsim
| [  141.157747][  T228] Tainted: [W]=WARN
[  141.157900][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 141.158158][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.158412][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  141.159115][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  141.159370][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  141.159669][  T228] RDX: 0000000000000000 RSI: ffff8880060d2c98 RDI: ffff88800235d0a8
[  141.159966][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  141.160308][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  141.160619][  T228] R13: ffff8880060d2128 R14: ffff8880060d2008 R15: ffff8880060d2000
[  141.160916][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  141.161274][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  141.161525][  T228] CR2: 000055b07b4335e8 CR3: 000000000be0a003 CR4: 0000000000772ef0
[  141.161823][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  141.162130][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  141.162424][  T228] PKRU: 55555554
[  141.162576][  T228] Call Trace:
[  141.162726][  T228]  <TASK>
[ 141.162831][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.163042][ T228] ? __warn (kernel/panic.c:748) 
[ 141.163203][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.163410][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 141.163618][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 141.163771][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 141.163977][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 141.164213][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.164426][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 141.164685][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 141.164895][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 141.165110][ T228] register_netdevice (net/core/dev.c:11003) 
[ 141.165320][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 141.165537][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 141.165757][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 141.166028][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 141.166306][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 141.166567][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 141.166773][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 141.166997][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 141.167256][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 141.167458][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 141.167660][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 141.167865][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 141.168083][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 141.168248][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 141.168458][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 141.168669][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 141.168881][ T228] ksys_write (fs/read_write.c:731) 
[ 141.169053][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 141.169264][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 141.169468][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  141.169719][  T228] RIP: 0033:0x7fd034db7b77
[ 141.169927][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  141.170657][  T228] RSP: 002b:00007ffdf48fb958 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  141.170962][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  141.171271][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  141.171583][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  141.171884][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  141.172187][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  142.668347][  T228] ------------[ cut here ]------------
| [ 142.668648][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  142.669072][  T228] Modules linked in: netdevsim
| [  142.669807][  T228] Tainted: [W]=WARN
[  142.669963][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 142.670319][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.670657][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  142.671439][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  142.671688][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  142.671961][  T228] RDX: 0000000000000000 RSI: ffff888009b7ac98 RDI: ffff88800235d0a8
[  142.672354][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  142.672685][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  142.673020][  T228] R13: ffff888009b7a128 R14: ffff888009b7a008 R15: ffff888009b7a000
[  142.673326][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  142.673756][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  142.674064][  T228] CR2: 000055b07b440018 CR3: 000000000be0a003 CR4: 0000000000772ef0
[  142.674403][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  142.674676][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  142.674950][  T228] PKRU: 55555554
[  142.675106][  T228] Call Trace:
[  142.675308][  T228]  <TASK>
[ 142.675416][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.675653][ T228] ? __warn (kernel/panic.c:748) 
[ 142.675843][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.676054][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 142.676247][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 142.676460][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 142.676736][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 142.676936][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.677198][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 142.677482][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 142.677671][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 142.677857][ T228] register_netdevice (net/core/dev.c:11003) 
[ 142.678126][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 142.678343][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 142.678544][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 142.678843][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 142.679113][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 142.679421][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 142.679613][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 142.679809][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 142.680067][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 142.680322][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 142.680521][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 142.680714][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 142.680909][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 142.681133][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 142.681374][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 142.681603][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 142.681794][ T228] ksys_write (fs/read_write.c:731) 
[ 142.681938][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 142.682214][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 142.682420][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  142.682723][  T228] RIP: 0033:0x7fd034db7b77
[ 142.682944][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  142.683695][  T228] RSP: 002b:00007ffdf48fb958 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  142.684023][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  142.684338][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  142.684674][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  142.685003][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  142.685286][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  144.176845][  T228] ------------[ cut here ]------------
| [ 144.177110][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  144.177577][  T228] Modules linked in: netdevsim
| [  144.178256][  T228] Tainted: [W]=WARN
[  144.178430][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 144.178736][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 144.179060][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  144.179822][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  144.180124][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  144.180434][  T228] RDX: 0000000000000000 RSI: ffff888009f6ac98 RDI: ffff88800235d0a8
[  144.180732][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  144.181041][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  144.181340][  T228] R13: ffff888009f6a128 R14: ffff888009f6a008 R15: ffff888009f6a000
[  144.181638][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  144.181970][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  144.182230][  T228] CR2: 000055b07b40e47c CR3: 000000000be0a003 CR4: 0000000000772ef0
[  144.182526][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  144.182826][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  144.183139][  T228] PKRU: 55555554
[  144.183295][  T228] Call Trace:
[  144.183447][  T228]  <TASK>
[ 144.183552][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 144.183763][ T228] ? __warn (kernel/panic.c:748) 
[ 144.183924][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 144.184136][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 144.184347][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 144.184502][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 144.184702][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 144.184919][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 144.185137][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 144.185397][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 144.185605][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 144.185808][ T228] register_netdevice (net/core/dev.c:11003) 
[ 144.186022][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 144.186235][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 144.186451][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 144.186713][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 144.186998][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 144.187261][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 144.187466][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 144.187681][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 144.187938][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 144.188153][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 144.188357][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 144.188562][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 144.188771][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 144.188934][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 144.189169][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 144.189382][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 144.189591][ T228] ksys_write (fs/read_write.c:731) 
[ 144.189747][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 144.189959][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 144.190169][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  144.190427][  T228] RIP: 0033:0x7fd034db7b77
[ 144.190645][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  144.191322][  T228] RSP: 002b:00007ffdf48fb958 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  144.191602][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  144.191876][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  144.192165][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  144.192442][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  144.192719][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  145.656851][  T228] ------------[ cut here ]------------
| [ 145.657093][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  145.657465][  T228] Modules linked in: netdevsim
| [  145.658037][  T228] Tainted: [W]=WARN
[  145.658183][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 145.658415][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 145.658653][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  145.659300][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  145.659538][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  145.659822][  T228] RDX: 0000000000000000 RSI: ffff88800c34ac98 RDI: ffff88800235d0a8
[  145.660107][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  145.660389][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  145.660673][  T228] R13: ffff88800c34a128 R14: ffff88800c34a008 R15: ffff88800c34a000
[  145.660949][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  145.661278][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  145.661513][  T228] CR2: 000055b07b5cdde8 CR3: 000000000be0a005 CR4: 0000000000772ef0
[  145.661796][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  145.662080][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  145.662363][  T228] PKRU: 55555554
[  145.662502][  T228] Call Trace:
[  145.662642][  T228]  <TASK>
[ 145.662740][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 145.662932][ T228] ? __warn (kernel/panic.c:748) 
[ 145.663103][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 145.663291][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 145.663481][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 145.663630][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 145.663821][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 145.664034][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 145.664227][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 145.664468][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 145.664660][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 145.664850][ T228] register_netdevice (net/core/dev.c:11003) 
[ 145.665060][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 145.665259][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 145.665462][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 145.665702][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 145.665959][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 145.666206][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 145.666397][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 145.666594][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 145.666837][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 145.667031][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 145.667219][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 145.667407][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 145.667598][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 145.667753][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 145.667944][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 145.668148][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 145.668346][ T228] ksys_write (fs/read_write.c:731) 
[ 145.668490][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 145.668692][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 145.668879][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  145.669130][  T228] RIP: 0033:0x7fd034db7b77
[ 145.669322][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  145.669959][  T228] RSP: 002b:00007ffdf48fb958 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  145.670247][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  145.670536][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  145.670812][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  145.671097][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  145.671373][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  147.135728][  T228] ------------[ cut here ]------------
| [ 147.135957][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  147.137278][  T228] Modules linked in: netdevsim
| [  147.137842][  T228] Tainted: [W]=WARN
[  147.137995][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 147.138229][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 147.138463][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  147.139111][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  147.139348][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  147.139628][  T228] RDX: 0000000000000000 RSI: ffff888008aaac98 RDI: ffff88800235d0a8
[  147.139904][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  147.140185][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  147.140488][  T228] R13: ffff888008aaa128 R14: ffff888008aaa008 R15: ffff888008aaa000
[  147.140767][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  147.141091][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  147.141323][  T228] CR2: 000055b07b40e47c CR3: 000000000be0a005 CR4: 0000000000772ef0
[  147.141602][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  147.141875][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  147.142157][  T228] PKRU: 55555554
[  147.142297][  T228] Call Trace:
[  147.142435][  T228]  <TASK>
[ 147.142532][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 147.142720][ T228] ? __warn (kernel/panic.c:748) 
[ 147.142866][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 147.143062][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 147.143253][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 147.143400][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 147.143588][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 147.143787][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 147.143981][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 147.144228][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 147.144420][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 147.144612][ T228] register_netdevice (net/core/dev.c:11003) 
[ 147.144806][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 147.145015][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 147.145218][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 147.145458][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 147.145716][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 147.145981][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 147.146182][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 147.146378][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 147.146614][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 147.146800][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 147.146996][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 147.147189][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 147.147378][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 147.147529][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 147.147721][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 147.147917][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 147.148127][ T228] ksys_write (fs/read_write.c:731) 
[ 147.148270][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 147.148470][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 147.148681][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  147.148910][  T228] RIP: 0033:0x7fd034db7b77
[ 147.149111][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  147.149750][  T228] RSP: 002b:00007ffdf48fb958 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  147.150038][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  147.150317][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  147.150601][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  147.150875][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  147.151159][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  148.644339][  T228] ------------[ cut here ]------------
| [ 148.644596][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  148.646239][  T228] Modules linked in: netdevsim
| [  148.646862][  T228] Tainted: [W]=WARN
[  148.647199][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 148.647455][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 148.647715][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  148.648617][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  148.648872][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  148.649189][  T228] RDX: 0000000000000000 RSI: ffff888009cc2c98 RDI: ffff88800235d0a8
[  148.649464][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  148.649737][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  148.650027][  T228] R13: ffff888009cc2128 R14: ffff888009cc2008 R15: ffff888009cc2000
[  148.650301][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  148.650640][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  148.650874][  T228] CR2: 000055b07b40e47c CR3: 000000000be0a001 CR4: 0000000000772ef0
[  148.651166][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  148.651443][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  148.651723][  T228] PKRU: 55555554
[  148.651866][  T228] Call Trace:
[  148.652014][  T228]  <TASK>
[ 148.652112][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 148.652299][ T228] ? __warn (kernel/panic.c:748) 
[ 148.652442][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 148.652631][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 148.652829][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 148.653011][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 148.653200][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 148.653401][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 148.653599][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 148.653835][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 148.654036][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 148.654235][ T228] register_netdevice (net/core/dev.c:11003) 
[ 148.654428][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 148.654624][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 148.654824][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 148.655074][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 148.655331][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 148.655576][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 148.655773][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 148.655971][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 148.656219][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 148.656405][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 148.656595][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 148.656783][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 148.657019][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 148.657170][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 148.657363][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 148.657562][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 148.657757][ T228] ksys_write (fs/read_write.c:731) 
[ 148.657899][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 148.658105][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 148.658293][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  148.658525][  T228] RIP: 0033:0x7fd034db7b77
[ 148.658718][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  148.659388][  T228] RSP: 002b:00007ffdf48fb958 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  148.659670][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  148.659942][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  148.660270][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  148.660581][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  148.660916][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  152.709329][  T228] ------------[ cut here ]------------
| [ 152.709655][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  152.710052][  T228] Modules linked in: netdevsim
| [  152.710765][  T228] Tainted: [W]=WARN
[  152.710922][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 152.711306][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 152.711723][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  152.712547][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  152.712950][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  152.713413][  T228] RDX: 0000000000000000 RSI: ffff888009b7ac98 RDI: ffff88800235d0a8
[  152.713886][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  152.714362][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  152.714663][  T228] R13: ffff888009b7a128 R14: ffff888009b7a008 R15: ffff888009b7a000
[  152.714951][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  152.715287][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  152.715530][  T228] CR2: 00007fd034d6f890 CR3: 000000000be0a006 CR4: 0000000000772ef0
[  152.715822][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  152.716124][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  152.716409][  T228] PKRU: 55555554
[  152.716564][  T228] Call Trace:
[  152.716718][  T228]  <TASK>
[ 152.716828][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 152.717052][ T228] ? __warn (kernel/panic.c:748) 
[ 152.717210][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 152.717412][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 152.717624][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 152.717781][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 152.717992][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 152.718209][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 152.718417][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 152.718664][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 152.718871][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 152.719085][ T228] register_netdevice (net/core/dev.c:11003) 
[ 152.719291][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 152.719500][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 152.719714][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 152.719970][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 152.720256][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 152.720532][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 152.720757][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 152.720974][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 152.721242][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 152.721442][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 152.721643][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 152.721845][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 152.722062][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 152.722225][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 152.722431][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 152.722643][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 152.722853][ T228] ksys_write (fs/read_write.c:731) 
[ 152.723019][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 152.723229][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 152.723433][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  152.723674][  T228] RIP: 0033:0x7fd034db7b77
[ 152.723881][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  152.724547][  T228] RSP: 002b:00007ffdf48fb0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  152.724845][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  152.725149][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  152.725440][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  152.725726][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  152.726026][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  154.359666][  T228] ------------[ cut here ]------------
| [ 154.360062][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  154.360448][  T228] Modules linked in: netdevsim
| [  154.361043][  T228] Tainted: [W]=WARN
[  154.361204][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 154.361452][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 154.361688][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  154.362382][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  154.362648][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  154.362922][  T228] RDX: 0000000000000000 RSI: ffff8880060d2c98 RDI: ffff88800235d0a8
[  154.363220][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  154.363495][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  154.363775][  T228] R13: ffff8880060d2128 R14: ffff8880060d2008 R15: ffff8880060d2000
[  154.364068][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  154.364388][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  154.364749][  T228] CR2: 00007f239fffd5a0 CR3: 000000000be0a006 CR4: 0000000000772ef0
[  154.365371][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  154.365819][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  154.366285][  T228] PKRU: 55555554
[  154.366517][  T228] Call Trace:
[  154.366748][  T228]  <TASK>
[ 154.366909][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 154.367233][ T228] ? __warn (kernel/panic.c:748) 
[ 154.367475][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 154.367922][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 154.368256][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 154.368494][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 154.368806][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 154.369161][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 154.369498][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 154.369894][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 154.370236][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 154.370565][ T228] register_netdevice (net/core/dev.c:11003) 
[ 154.370886][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 154.371230][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 154.371567][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 154.371960][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 154.372400][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 154.372799][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 154.373135][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 154.373463][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 154.373858][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 154.374177][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 154.374490][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 154.374810][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 154.375147][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 154.375397][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 154.375715][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 154.376053][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 154.376380][ T228] ksys_write (fs/read_write.c:731) 
[ 154.376620][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 154.376964][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 154.377303][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  154.377684][  T228] RIP: 0033:0x7fd034db7b77
[ 154.378009][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  154.378754][  T228] RSP: 002b:00007ffdf48fb0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  154.379059][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  154.379332][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  154.379600][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  154.379877][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  154.380169][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  155.959136][  T228] ------------[ cut here ]------------
| [ 155.959440][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  155.959840][  T228] Modules linked in: netdevsim
| [  155.960452][  T228] Tainted: [W]=WARN
[  155.960601][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 155.960830][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.961075][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  155.961714][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  155.961959][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  155.962243][  T228] RDX: 0000000000000000 RSI: ffff888009f6ac98 RDI: ffff88800235d0a8
[  155.962516][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  155.962791][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  155.963073][  T228] R13: ffff888009f6a128 R14: ffff888009f6a008 R15: ffff888009f6a000
[  155.963351][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[  155.963762][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  155.964048][  T228] CR2: 00007f239fffd5a0 CR3: 000000000be0a001 CR4: 0000000000772ef0
[  155.964328][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  155.964600][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  155.964870][  T228] PKRU: 55555554
[  155.965016][  T228] Call Trace:
[  155.965154][  T228]  <TASK>
[ 155.965250][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.965437][ T228] ? __warn (kernel/panic.c:748) 
[ 155.965581][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.965764][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 155.965954][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 155.966104][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 155.966289][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 155.966485][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.966677][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 155.966913][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 155.967111][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 155.967299][ T228] register_netdevice (net/core/dev.c:11003) 
[ 155.967490][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 155.967685][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 155.967885][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 155.968133][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 155.968387][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 155.968624][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 155.968809][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 155.969011][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 155.969248][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 155.969429][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 155.969614][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 155.969803][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 155.970003][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 155.970152][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 155.970339][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 155.970572][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 155.970766][ T228] ksys_write (fs/read_write.c:731) 
[ 155.970908][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 155.971111][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 155.971299][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  155.971525][  T228] RIP: 0033:0x7fd034db7b77
[ 155.971714][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  155.972384][  T228] RSP: 002b:00007ffdf48fb0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  155.972676][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  155.972948][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  155.973229][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  155.973503][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  155.973773][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  157.611381][  T228] ------------[ cut here ]------------
| [ 157.611780][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  157.612468][  T228] Modules linked in: netdevsim
| [  157.613042][  T228] Tainted: [W]=WARN
[  157.613182][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 157.613411][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 157.613645][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  157.614301][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  157.614535][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  157.614809][  T228] RDX: 0000000000000000 RSI: ffff888008aaac98 RDI: ffff88800235d0a8
[  157.615090][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  157.615362][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  157.615640][  T228] R13: ffff888008aaa128 R14: ffff888008aaa008 R15: ffff888008aaa000
[  157.615911][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  157.616320][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  157.616555][  T228] CR2: 00007fd034d6f890 CR3: 000000000be0a005 CR4: 0000000000772ef0
[  157.616838][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  157.617124][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  157.617402][  T228] PKRU: 55555554
[  157.617544][  T228] Call Trace:
[  157.617684][  T228]  <TASK>
[ 157.617782][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 157.617971][ T228] ? __warn (kernel/panic.c:748) 
[ 157.618143][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 157.618331][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 157.618522][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 157.618666][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 157.618851][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 157.619060][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 157.619255][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 157.619493][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 157.619709][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 157.619916][ T228] register_netdevice (net/core/dev.c:11003) 
[ 157.620123][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 157.620321][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 157.620535][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 157.620778][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 157.621049][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 157.621293][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 157.621479][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 157.621676][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 157.621915][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 157.622109][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 157.622303][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 157.622490][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 157.622685][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 157.622834][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 157.623032][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 157.623227][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 157.623431][ T228] ksys_write (fs/read_write.c:731) 
[ 157.623573][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 157.623773][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 157.623962][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  157.624202][  T228] RIP: 0033:0x7fd034db7b77
[ 157.624393][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  157.625046][  T228] RSP: 002b:00007ffdf48fb0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  157.625320][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  157.625596][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  157.625867][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  157.626149][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  157.626419][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  159.201961][  T228] ------------[ cut here ]------------
| [ 159.202278][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  159.202658][  T228] Modules linked in: netdevsim
| [  159.203231][  T228] Tainted: [W]=WARN
[  159.203379][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 159.203613][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.203850][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  159.204493][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  159.204730][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  159.205012][  T228] RDX: 0000000000000000 RSI: ffff88800c34ac98 RDI: ffff88800235d0a8
[  159.205286][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  159.205654][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  159.205932][  T228] R13: ffff88800c34a128 R14: ffff88800c34a008 R15: ffff88800c34a000
[  159.206248][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  159.206562][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  159.206792][  T228] CR2: 000055b07b5d9258 CR3: 000000000be0a006 CR4: 0000000000772ef0
[  159.207077][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  159.207348][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  159.207616][  T228] PKRU: 55555554
[  159.207756][  T228] Call Trace:
[  159.207897][  T228]  <TASK>
[ 159.208004][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.208195][ T228] ? __warn (kernel/panic.c:748) 
[ 159.208336][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.208519][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 159.208710][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 159.208854][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 159.209050][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 159.209248][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.209443][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 159.209678][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 159.209870][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 159.210068][ T228] register_netdevice (net/core/dev.c:11003) 
[ 159.210263][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 159.210470][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 159.210672][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 159.210916][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 159.211195][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 159.211438][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 159.211624][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 159.211818][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 159.212073][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 159.212258][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 159.212445][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 159.212634][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 159.212826][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 159.213042][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 159.213358][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 159.213678][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 159.214018][ T228] ksys_write (fs/read_write.c:731) 
[ 159.214255][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 159.214675][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 159.215013][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  159.215398][  T228] RIP: 0033:0x7fd034db7b77
[ 159.215712][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  159.216798][  T228] RSP: 002b:00007ffdf48fb0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  159.217278][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  159.217741][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  159.218226][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  159.218676][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  159.219146][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  160.787692][  T228] ------------[ cut here ]------------
| [ 160.788024][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  160.788424][  T228] Modules linked in: netdevsim
| [  160.789031][  T228] Tainted: [W]=WARN
[  160.789192][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 160.789438][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.789684][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  160.790438][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  160.790820][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  160.791137][  T228] RDX: 0000000000000000 RSI: ffff888009cc2c98 RDI: ffff88800235d0a8
[  160.791423][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  160.791711][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  160.792008][  T228] R13: ffff888009cc2128 R14: ffff888009cc2008 R15: ffff888009cc2000
[  160.792297][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  160.792635][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  160.792881][  T228] CR2: 00007fd034d6f890 CR3: 000000000be0a001 CR4: 0000000000772ef0
[  160.793277][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  160.793568][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  160.793855][  T228] PKRU: 55555554
[  160.794022][  T228] Call Trace:
[  160.794176][  T228]  <TASK>
[ 160.794285][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.794490][ T228] ? __warn (kernel/panic.c:748) 
[ 160.794651][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.794866][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 160.795101][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 160.795260][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 160.795462][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 160.795675][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.795884][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 160.796145][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 160.796353][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 160.796560][ T228] register_netdevice (net/core/dev.c:11003) 
[ 160.796764][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 160.796974][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 160.797199][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 160.797454][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 160.797726][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 160.797993][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 160.798196][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 160.798404][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 160.798655][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 160.798851][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 160.799062][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 160.799265][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 160.799474][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 160.799635][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 160.799842][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 160.800060][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 160.800269][ T228] ksys_write (fs/read_write.c:731) 
[ 160.800433][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 160.800643][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 160.800844][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  160.801101][  T228] RIP: 0033:0x7fd034db7b77
[ 160.801300][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  160.801943][  T228] RSP: 002b:00007ffdf48fb0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  160.802242][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  160.802523][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  160.802808][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  160.803101][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  160.803385][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  162.353220][  T228] ------------[ cut here ]------------
| [ 162.353507][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  162.353877][  T228] Modules linked in: netdevsim
| [  162.354444][  T228] Tainted: [W]=WARN
[  162.354587][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 162.354814][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 162.355065][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  162.355702][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  162.355935][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  162.356298][  T228] RDX: 0000000000000000 RSI: ffff888009b7ac98 RDI: ffff88800235d0a8
[  162.356571][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  162.356845][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  162.357213][  T228] R13: ffff888009b7a128 R14: ffff888009b7a008 R15: ffff888009b7a000
[  162.357488][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[  162.357811][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  162.358051][  T228] CR2: 0000562abfbc4630 CR3: 000000000be0a002 CR4: 0000000000772ef0
[  162.358328][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  162.358690][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  162.358966][  T228] PKRU: 55555554
[  162.359118][  T228] Call Trace:
[  162.359259][  T228]  <TASK>
[ 162.359357][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 162.359554][ T228] ? __warn (kernel/panic.c:748) 
[ 162.359707][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 162.359894][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 162.360100][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 162.360249][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 162.360453][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 162.360658][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 162.360855][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 162.361101][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 162.361294][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 162.361485][ T228] register_netdevice (net/core/dev.c:11003) 
[ 162.361679][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 162.361877][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 162.362089][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 162.362333][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 162.362588][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 162.362831][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 162.363035][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 162.363234][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 162.363480][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 162.363667][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 162.363856][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 162.364054][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 162.364249][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 162.364401][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 162.364591][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 162.364789][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 162.364998][ T228] ksys_write (fs/read_write.c:731) 
[ 162.365146][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 162.365346][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 162.365534][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  162.365769][  T228] RIP: 0033:0x7fd034db7b77
[ 162.365964][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  162.366616][  T228] RSP: 002b:00007ffdf48fb0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  162.366892][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  162.367176][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  162.367456][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  162.367730][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  162.368017][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  163.935972][  T228] ------------[ cut here ]------------
| [ 163.936275][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  163.936644][  T228] Modules linked in: netdevsim
| [  163.938360][  T228] Tainted: [W]=WARN
[  163.938506][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 163.938735][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.938970][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  163.939672][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  163.939907][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  163.940186][  T228] RDX: 0000000000000000 RSI: ffff8880060d2c98 RDI: ffff88800235d0a8
[  163.940469][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  163.940744][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  163.941114][  T228] R13: ffff8880060d2128 R14: ffff8880060d2008 R15: ffff8880060d2000
[  163.941392][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  163.941709][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  163.941944][  T228] CR2: 000055b07b492408 CR3: 000000000be0a006 CR4: 0000000000772ef0
[  163.942228][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  163.942508][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  163.942791][  T228] PKRU: 55555554
[  163.942932][  T228] Call Trace:
[  163.943084][  T228]  <TASK>
[ 163.943182][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.943374][ T228] ? __warn (kernel/panic.c:748) 
[ 163.943531][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.943722][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 163.943916][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 163.944073][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 163.944263][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 163.944466][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.944661][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 163.944898][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 163.945112][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 163.945306][ T228] register_netdevice (net/core/dev.c:11003) 
[ 163.945497][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 163.945694][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 163.945895][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 163.946147][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 163.946412][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 163.946655][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.946861][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 163.947068][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 163.947308][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.947494][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 163.947681][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 163.947873][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 163.948078][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 163.948231][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 163.948421][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 163.948615][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 163.948809][ T228] ksys_write (fs/read_write.c:731) 
[ 163.948951][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 163.949154][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 163.949343][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  163.949575][  T228] RIP: 0033:0x7fd034db7b77
[ 163.949766][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  163.950415][  T228] RSP: 002b:00007ffdf48fb0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  163.950691][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  163.950971][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  163.951254][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  163.951523][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  163.951794][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  165.561607][  T228] ------------[ cut here ]------------
| [ 165.561957][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  165.562340][  T228] Modules linked in: netdevsim
| [  165.562906][  T228] Tainted: [W]=WARN
[  165.563057][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 165.563286][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.563519][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  165.564203][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  165.564441][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  165.564716][  T228] RDX: 0000000000000000 RSI: ffff888009f6ac98 RDI: ffff88800235d0a8
[  165.565003][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  165.565277][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  165.565552][  T228] R13: ffff888009f6a128 R14: ffff888009f6a008 R15: ffff888009f6a000
[  165.565826][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  165.566243][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  165.566482][  T228] CR2: 000055b07b5f5fe8 CR3: 000000000be0a003 CR4: 0000000000772ef0
[  165.566759][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  165.567045][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  165.567320][  T228] PKRU: 55555554
[  165.567459][  T228] Call Trace:
[  165.567598][  T228]  <TASK>
[ 165.567696][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.567885][ T228] ? __warn (kernel/panic.c:748) 
[ 165.568039][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.568226][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 165.568421][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 165.568565][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 165.568754][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 165.568954][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.569157][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 165.569398][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 165.569592][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 165.569782][ T228] register_netdevice (net/core/dev.c:11003) 
[ 165.569975][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 165.570179][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 165.570395][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 165.570641][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 165.570899][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 165.571147][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 165.571338][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 165.571534][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 165.571770][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 165.571959][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 165.572158][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 165.572350][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 165.572543][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 165.572694][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 165.572888][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 165.573093][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 165.573291][ T228] ksys_write (fs/read_write.c:731) 
[ 165.573436][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 165.573631][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 165.573819][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  165.574052][  T228] RIP: 0033:0x7fd034db7b77
[ 165.574241][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  165.574872][  T228] RSP: 002b:00007ffdf48fb0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  165.575154][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  165.575433][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  165.575706][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  165.575976][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002
[  165.576260][  T228] R13: 00007fd034e73760 R14: 0000000000000002 R15: 00007fd034e6e9c0
| [  167.186621][  T228] ------------[ cut here ]------------
| [ 167.186980][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  167.187362][  T228] Modules linked in: netdevsim
| [  167.187918][  T228] Tainted: [W]=WARN
[  167.188069][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 167.188299][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.188533][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  167.189187][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  167.189421][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  167.189691][  T228] RDX: 0000000000000000 RSI: ffff888008aaac98 RDI: ffff88800235d0a8
[  167.189963][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  167.190276][  T228] R10: ffffffffb53ec1e7 R11: ffff88800235c5c0 R12: 0000000000000000
[  167.190561][  T228] R13: ffff888008aaa128 R14: ffff888008aaa008 R15: ffff888008aaa000
[  167.190837][  T228] FS:  00007fd034c76740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  167.191162][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  167.191473][  T228] CR2: 00007fd034d6f890 CR3: 000000000be0a003 CR4: 0000000000772ef0
[  167.191761][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  167.192047][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  167.192317][  T228] PKRU: 55555554
[  167.192456][  T228] Call Trace:
[  167.192596][  T228]  <TASK>
[ 167.192693][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.192880][ T228] ? __warn (kernel/panic.c:748) 
[ 167.193034][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.193227][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 167.193420][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 167.193563][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 167.193751][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 167.193948][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.194153][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 167.194390][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 167.194580][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 167.194770][ T228] register_netdevice (net/core/dev.c:11003) 
[ 167.194962][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 167.195167][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 167.195374][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 167.195611][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 167.195865][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 167.196117][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 167.196307][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 167.196503][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 167.196737][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 167.196924][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 167.197122][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 167.197310][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 167.197505][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 167.197658][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 167.197848][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 167.198052][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 167.198252][ T228] ksys_write (fs/read_write.c:731) 
[ 167.198395][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 167.198591][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 167.198778][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  167.199020][  T228] RIP: 0033:0x7fd034db7b77
[ 167.199213][ T228] Code: 0b 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:	0b 00                	or     (%rax),%eax
   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
[  167.199881][  T228] RSP: 002b:00007ffdf48fb0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  167.200174][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd034db7b77
[  167.200458][  T228] RDX: 0000000000000002 RSI: 000055b07b5f7130 RDI: 0000000000000001
[  167.200731][  T228] RBP: 000055b07b5f7130 R08: 0000000000000000 R09: 00007fd034e2a4e0
[  167.201019][  T228] R10: 00007fd034e2a3e0 R11: 0000000000000246 R12: 0000000000000002


Finger prints:
__netdev_update_features:register_netdevice:nsim_create:__nsim_dev_port_add:nsim_drv_port_add