======================================
| 0
| xx__-> [   12.591799][  T228] ------------[ cut here ]------------
| [ 12.592346][ 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) 
| [   12.593096][  T228] Modules linked in: netdevsim
[   12.593980][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.594413][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.595098][ 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
[   12.596211][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[   12.596679][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   12.597352][  T228] RDX: 0000000000000000 RSI: ffff8880055aac98 RDI: ffff888009afd0a8
[   12.597885][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[   12.598399][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[   12.598932][  T228] R13: ffff8880055aa128 R14: ffff8880055aa008 R15: ffff8880055aa000
[   12.599443][  T228] FS:  00007f08424df740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   12.600063][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.600499][  T228] CR2: 0000564e1ed4d47c CR3: 0000000002ace003 CR4: 0000000000772ef0
[   12.601017][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   12.601805][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   12.602339][  T228] PKRU: 55555554
[   12.602612][  T228] Call Trace:
[   12.602865][  T228]  <TASK>
[ 12.603052][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.603386][ T228] ? __warn (kernel/panic.c:748) 
[ 12.603687][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.604044][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 12.604394][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 12.604665][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 12.605018][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 12.605391][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.605782][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 12.606205][ 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) 
[ 12.606560][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 12.606891][ T228] register_netdevice (net/core/dev.c:11003) 
[ 12.607224][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 12.607591][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 12.607937][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 12.608350][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 12.608826][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 12.609245][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 12.609615][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 12.609963][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 12.610385][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 12.610728][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 12.611061][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 12.611400][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 12.611758][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 12.612022][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 12.612352][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 12.612712][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 12.613058][ T228] ksys_write (fs/read_write.c:731) 
[ 12.613316][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 12.613752][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 12.614098][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   12.614538][  T228] RIP: 0033:0x7f0842620b77
[ 12.614919][ 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
[   12.616096][  T228] RSP: 002b:00007ffdfc745918 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   12.616607][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[   12.617088][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[   12.617618][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[   12.618112][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[   12.618630][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  160.129244][  T228] ------------[ cut here ]------------
| [ 160.129498][ 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) 
| [  160.129877][  T228] Modules linked in: netdevsim
| [  160.131330][  T228] Tainted: [W]=WARN
[  160.131530][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 160.131770][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.132025][ 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
[  160.132686][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  160.132935][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  160.133217][  T228] RDX: 0000000000000000 RSI: ffff88800d96ac98 RDI: ffff888009afd0a8
[  160.133533][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  160.133819][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  160.134135][  T228] R13: ffff88800d96a128 R14: ffff88800d96a008 R15: ffff88800d96a000
[  160.134409][  T228] FS:  00007f08424df740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  160.134875][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  160.135166][  T228] CR2: 0000564e1ed724f8 CR3: 0000000002ace002 CR4: 0000000000772ef0
[  160.135465][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  160.135747][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  160.136051][  T228] PKRU: 55555554
[  160.136192][  T228] Call Trace:
[  160.136338][  T228]  <TASK>
[ 160.136447][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.136644][ T228] ? __warn (kernel/panic.c:748) 
[ 160.136860][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.137137][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 160.137365][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 160.137528][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 160.137724][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 160.137944][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.138168][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 160.138404][ 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) 
[ 160.138607][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 160.138801][ T228] register_netdevice (net/core/dev.c:11003) 
[ 160.139010][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 160.139222][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 160.139455][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 160.139704][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 160.139979][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 160.140221][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 160.140415][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 160.140712][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 160.141042][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 160.141234][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 160.141440][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 160.141630][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 160.141826][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 160.142015][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 160.142227][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 160.142439][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 160.142670][ T228] ksys_write (fs/read_write.c:731) 
[ 160.142873][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 160.143145][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 160.143338][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  160.143603][  T228] RIP: 0033:0x7f0842620b77
[ 160.143817][ 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
[  160.144685][  T228] RSP: 002b:00007ffdfc7445a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  160.145021][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  160.145322][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  160.145623][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  160.146007][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  160.146339][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  161.772309][  T228] ------------[ cut here ]------------
| [ 161.772606][ 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) 
| [  161.773015][  T228] Modules linked in: netdevsim
| [  161.773730][  T228] Tainted: [W]=WARN
[  161.773919][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 161.774211][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.774526][ 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
[  161.775300][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  161.775637][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  161.775932][  T228] RDX: 0000000000000000 RSI: ffff88800ea5ac98 RDI: ffff888009afd0a8
[  161.776220][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  161.776589][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  161.776867][  T228] R13: ffff88800ea5a128 R14: ffff88800ea5a008 R15: ffff88800ea5a000
[  161.777163][  T228] FS:  00007f08424df740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  161.777622][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  161.777873][  T228] CR2: 0000564e1ed4d47c CR3: 0000000002ace005 CR4: 0000000000772ef0
[  161.778171][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  161.778520][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  161.778839][  T228] PKRU: 55555554
[  161.778983][  T228] Call Trace:
[  161.779126][  T228]  <TASK>
[ 161.779232][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.779445][ T228] ? __warn (kernel/panic.c:748) 
[ 161.779603][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.779805][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 161.780033][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 161.780209][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 161.780409][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 161.780641][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.780840][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 161.781076][ 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) 
[ 161.781269][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 161.781480][ T228] register_netdevice (net/core/dev.c:11003) 
[ 161.781696][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 161.781903][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 161.782118][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 161.782361][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 161.782635][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 161.782878][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.783083][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 161.783293][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 161.783558][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.783746][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 161.783935][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 161.784140][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 161.784344][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 161.784506][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 161.784742][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 161.784949][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 161.785143][ T228] ksys_write (fs/read_write.c:731) 
[ 161.785296][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 161.785509][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 161.785706][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  161.785951][  T228] RIP: 0033:0x7f0842620b77
[ 161.786152][ 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
[  161.786823][  T228] RSP: 002b:00007ffdfc7445a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  161.787107][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  161.787403][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  161.787708][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  161.787995][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  161.788289][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  163.320347][  T228] ------------[ cut here ]------------
| [ 163.320621][ 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) 
| [  163.321055][  T228] Modules linked in: netdevsim
| [  163.322055][  T228] Tainted: [W]=WARN
[  163.322297][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 163.322713][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.323025][ 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
[  163.323744][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  163.324009][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  163.324345][  T228] RDX: 0000000000000000 RSI: ffff888009e9ac98 RDI: ffff888009afd0a8
[  163.324654][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  163.324948][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  163.325386][  T228] R13: ffff888009e9a128 R14: ffff888009e9a008 R15: ffff888009e9a000
[  163.325717][  T228] FS:  00007f08424df740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  163.326051][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  163.326286][  T228] CR2: 0000564e1ed4d47c CR3: 0000000002ace002 CR4: 0000000000772ef0
[  163.326578][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  163.326872][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  163.327168][  T228] PKRU: 55555554
[  163.327323][  T228] Call Trace:
[  163.327476][  T228]  <TASK>
[ 163.327577][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.327766][ T228] ? __warn (kernel/panic.c:748) 
[ 163.327910][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.328116][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 163.328308][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 163.328467][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 163.328659][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 163.328855][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.329069][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 163.329312][ 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) 
[ 163.329523][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 163.329762][ T228] register_netdevice (net/core/dev.c:11003) 
[ 163.329963][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 163.330276][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 163.330646][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 163.331014][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 163.331275][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 163.331533][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.331729][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 163.331950][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 163.332225][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.332415][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 163.332638][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 163.332832][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 163.333056][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 163.333212][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 163.333401][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 163.333644][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 163.333854][ T228] ksys_write (fs/read_write.c:731) 
[ 163.334017][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 163.334312][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 163.334518][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  163.334753][  T228] RIP: 0033:0x7f0842620b77
[ 163.334951][ 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
[  163.335627][  T228] RSP: 002b:00007ffdfc7445a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  163.335919][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  163.336202][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  163.336500][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  163.336785][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  163.337252][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  165.031034][  T228] ------------[ cut here ]------------
| [ 165.031445][ 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) 
| [  165.032096][  T228] Modules linked in: netdevsim
| [  165.035292][  T228] Tainted: [W]=WARN
[  165.035882][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 165.036294][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.036964][ 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
[  165.038164][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  165.038607][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  165.039118][  T228] RDX: 0000000000000000 RSI: ffff888005a12c98 RDI: ffff888009afd0a8
[  165.039621][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  165.040099][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  165.040598][  T228] R13: ffff888005a12128 R14: ffff888005a12008 R15: ffff888005a12000
[  165.041091][  T228] FS:  00007f08424df740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  165.041669][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  165.042078][  T228] CR2: 0000564e1ed7f018 CR3: 0000000002ace002 CR4: 0000000000772ef0
[  165.042579][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  165.043066][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  165.043580][  T228] PKRU: 55555554
[  165.043833][  T228] Call Trace:
[  165.044088][  T228]  <TASK>
[ 165.044260][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.044609][ T228] ? __warn (kernel/panic.c:748) 
[ 165.044860][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.045192][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 165.045564][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 165.045816][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 165.046142][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 165.046510][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.046859][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 165.047279][ 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) 
[ 165.047638][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 165.047984][ T228] register_netdevice (net/core/dev.c:11003) 
[ 165.048326][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 165.048697][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 165.049052][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 165.049492][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 165.049954][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 165.050399][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 165.050754][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 165.051103][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 165.051549][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 165.051879][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 165.052205][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 165.052554][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 165.052905][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 165.053171][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 165.053513][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 165.053855][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 165.054213][ T228] ksys_write (fs/read_write.c:731) 
[ 165.054481][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 165.054828][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 165.055162][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  165.055585][  T228] RIP: 0033:0x7f0842620b77
[ 165.055919][ 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
[  165.057066][  T228] RSP: 002b:00007ffdfc7445a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  165.057635][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  165.058123][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  165.058620][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  165.059093][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  165.059600][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  166.618080][  T228] ------------[ cut here ]------------
| [ 166.618528][ 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) 
| [  166.619199][  T228] Modules linked in: netdevsim
| [  166.620261][  T228] Tainted: [W]=WARN
[  166.620593][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 166.621011][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.621455][ 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
[  166.622593][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  166.623022][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  166.623519][  T228] RDX: 0000000000000000 RSI: ffff88800ea52c98 RDI: ffff888009afd0a8
[  166.624035][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  166.624551][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  166.625040][  T228] R13: ffff88800ea52128 R14: ffff88800ea52008 R15: ffff88800ea52000
[  166.625556][  T228] FS:  00007f08424df740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  166.626139][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  166.626570][  T228] CR2: 0000564e1ed725e8 CR3: 0000000002ace002 CR4: 0000000000772ef0
[  166.627076][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  166.627595][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  166.628073][  T228] PKRU: 55555554
[  166.628320][  T228] Call Trace:
[  166.628586][  T228]  <TASK>
[ 166.628761][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.629090][ T228] ? __warn (kernel/panic.c:748) 
[ 166.629355][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.629712][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 166.630059][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 166.630319][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 166.630669][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 166.631032][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.631378][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 166.631810][ 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) 
[ 166.632150][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 166.632495][ T228] register_netdevice (net/core/dev.c:11003) 
[ 166.632818][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 166.633169][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 166.633536][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 166.633946][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 166.634404][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 166.634837][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.635158][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 166.635527][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 166.635990][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.636322][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 166.636711][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 166.637070][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 166.637416][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 166.637713][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 166.638064][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 166.638467][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 166.638832][ T228] ksys_write (fs/read_write.c:731) 
[ 166.639102][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 166.639482][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 166.639828][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  166.640239][  T228] RIP: 0033:0x7f0842620b77
[ 166.640604][ 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
[  166.641733][  T228] RSP: 002b:00007ffdfc7445a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  166.642220][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  166.642732][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  166.643220][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  166.643721][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  166.644230][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  168.246872][  T228] ------------[ cut here ]------------
| [ 168.247165][ 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) 
| [  168.247726][  T228] Modules linked in: netdevsim
| [  168.248737][  T228] Tainted: [W]=WARN
[  168.249004][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 168.249351][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.249718][ 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
[  168.250495][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  168.250930][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  168.251381][  T228] RDX: 0000000000000000 RSI: ffff8880055aac98 RDI: ffff888009afd0a8
[  168.251858][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  168.252329][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  168.252717][  T228] R13: ffff8880055aa128 R14: ffff8880055aa008 R15: ffff8880055aa000
[  168.253020][  T228] FS:  00007f08424df740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  168.253367][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  168.253697][  T228] CR2: 0000564e1ed7f018 CR3: 0000000002ace002 CR4: 0000000000772ef0
[  168.253999][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  168.254308][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  168.254615][  T228] PKRU: 55555554
[  168.254773][  T228] Call Trace:
[  168.254934][  T228]  <TASK>
[ 168.255050][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.255257][ T228] ? __warn (kernel/panic.c:748) 
[ 168.255415][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.255630][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 168.255836][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 168.255995][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 168.256196][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 168.256408][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.256634][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 168.256885][ 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) 
[ 168.257101][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 168.257312][ T228] register_netdevice (net/core/dev.c:11003) 
[ 168.257570][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 168.257788][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 168.258015][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 168.258273][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 168.258560][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 168.258816][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 168.259057][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 168.259268][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 168.259541][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 168.259743][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 168.259946][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 168.260148][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 168.260358][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 168.260546][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 168.260759][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 168.260971][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 168.261189][ T228] ksys_write (fs/read_write.c:731) 
[ 168.261349][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 168.261612][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 168.261822][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  168.262066][  T228] RIP: 0033:0x7f0842620b77
[ 168.262274][ 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
[  168.262959][  T228] RSP: 002b:00007ffdfc7445a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  168.263258][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  168.263558][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  168.263860][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  168.264162][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  168.264460][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  169.834838][  T228] ------------[ cut here ]------------
| [ 169.835140][ 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) 
| [  169.835679][  T228] Modules linked in: netdevsim
| [  169.836390][  T228] Tainted: [W]=WARN
[  169.836590][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 169.836876][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.837170][ 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
[  169.838000][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  169.838328][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  169.838704][  T228] RDX: 0000000000000000 RSI: ffff88800d96ac98 RDI: ffff888009afd0a8
[  169.839073][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  169.839476][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  169.839817][  T228] R13: ffff88800d96a128 R14: ffff88800d96a008 R15: ffff88800d96a000
[  169.840155][  T228] FS:  00007f08424df740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  169.840554][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  169.840820][  T228] CR2: 0000564e1ed4d47c CR3: 0000000002ace005 CR4: 0000000000772ef0
[  169.841159][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  169.841467][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  169.841774][  T228] PKRU: 55555554
[  169.841952][  T228] Call Trace:
[  169.842118][  T228]  <TASK>
[ 169.842222][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.842466][ T228] ? __warn (kernel/panic.c:748) 
[ 169.842677][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.842910][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 169.843148][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 169.843317][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 169.843548][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 169.843784][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.844037][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 169.844320][ 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) 
[ 169.844557][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 169.844804][ T228] register_netdevice (net/core/dev.c:11003) 
[ 169.845067][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 169.845322][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 169.845612][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 169.845898][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 169.846219][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 169.846539][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 169.846777][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 169.847017][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 169.847298][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 169.847546][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 169.847778][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 169.848021][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 169.848264][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 169.848462][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 169.848698][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 169.848944][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 169.849181][ T228] ksys_write (fs/read_write.c:731) 
[ 169.849377][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 169.849664][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 169.849898][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  169.850226][  T228] RIP: 0033:0x7f0842620b77
[ 169.850525][ 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
[  169.851375][  T228] RSP: 002b:00007ffdfc7445a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  169.851734][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  169.852095][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  169.852456][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  169.852798][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  169.853117][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  171.471914][  T228] ------------[ cut here ]------------
| [ 171.472240][ 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) 
| [  171.474562][  T228] Modules linked in: netdevsim
| [  171.475800][  T228] Tainted: [W]=WARN
[  171.476055][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 171.476775][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.477206][ 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
[  171.478613][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  171.479013][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  171.479787][  T228] RDX: 0000000000000000 RSI: ffff88800ea5ac98 RDI: ffff888009afd0a8
[  171.480266][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  171.481008][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  171.481670][  T228] R13: ffff88800ea5a128 R14: ffff88800ea5a008 R15: ffff88800ea5a000
[  171.482138][  T228] FS:  00007f08424df740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  171.482701][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  171.483091][  T228] CR2: 0000564e1ef0cde8 CR3: 0000000002ace001 CR4: 0000000000772ef0
[  171.483592][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  171.483922][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  171.484328][  T228] PKRU: 55555554
[  171.484494][  T228] Call Trace:
[  171.484678][  T228]  <TASK>
[ 171.484776][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.485021][ T228] ? __warn (kernel/panic.c:748) 
[ 171.485187][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.485381][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 171.485653][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 171.485817][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 171.486016][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 171.486228][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.486445][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 171.486715][ 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) 
[ 171.486920][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 171.487138][ T228] register_netdevice (net/core/dev.c:11003) 
[ 171.487339][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 171.487569][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 171.487820][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 171.488085][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 171.488356][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 171.488671][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 171.488872][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 171.489088][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 171.489339][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 171.489541][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 171.489806][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 171.490008][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 171.490223][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 171.490388][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 171.490599][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 171.490800][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 171.491000][ T228] ksys_write (fs/read_write.c:731) 
[ 171.491159][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 171.491361][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 171.491571][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  171.491810][  T228] RIP: 0033:0x7f0842620b77
[ 171.492018][ 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
[  171.492958][  T228] RSP: 002b:00007ffdfc7445a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  171.493250][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  171.493543][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  171.493830][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  171.494139][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  171.494415][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  173.150143][  T228] ------------[ cut here ]------------
| [ 173.150403][ 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) 
| [  173.150868][  T228] Modules linked in: netdevsim
| [  173.151545][  T228] Tainted: [W]=WARN
[  173.151719][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 173.151994][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 173.152273][ 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
[  173.153080][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  173.153351][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  173.153718][  T228] RDX: 0000000000000000 RSI: ffff888009e9ac98 RDI: ffff888009afd0a8
[  173.154082][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  173.154421][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  173.154771][  T228] R13: ffff888009e9a128 R14: ffff888009e9a008 R15: ffff888009e9a000
[  173.155103][  T228] FS:  00007f08424df740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  173.155519][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  173.155772][  T228] CR2: 0000564e1ed4d47c CR3: 0000000002ace004 CR4: 0000000000772ef0
[  173.156119][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  173.156507][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  173.156868][  T228] PKRU: 55555554
[  173.157045][  T228] Call Trace:
[  173.157226][  T228]  <TASK>
[ 173.157347][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 173.157617][ T228] ? __warn (kernel/panic.c:748) 
[ 173.157791][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 173.158040][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 173.158273][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 173.158503][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 173.158760][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 173.158997][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 173.159216][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 173.159510][ 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) 
[ 173.159768][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 173.160006][ T228] register_netdevice (net/core/dev.c:11003) 
[ 173.160241][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 173.160489][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 173.160760][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 173.161068][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 173.161384][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 173.161721][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 173.161978][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 173.162216][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 173.162541][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 173.162791][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 173.163003][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 173.163211][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 173.163440][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 173.163673][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 173.163869][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 173.164089][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 173.164288][ T228] ksys_write (fs/read_write.c:731) 
[ 173.164450][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 173.164685][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 173.164890][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  173.165211][  T228] RIP: 0033:0x7f0842620b77
[ 173.165469][ 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
[  173.166231][  T228] RSP: 002b:00007ffdfc7445a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  173.166574][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  173.166903][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  173.167216][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  173.167571][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  173.167913][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  174.817992][  T228] ------------[ cut here ]------------
| [ 174.818235][ 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) 
| [  174.818812][  T228] Modules linked in: netdevsim
| [  174.819855][  T228] Tainted: [W]=WARN
[  174.820074][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 174.820511][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.820924][ 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
[  174.822061][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  174.822491][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  174.822981][  T228] RDX: 0000000000000000 RSI: ffff888005a12c98 RDI: ffff888009afd0a8
[  174.823519][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  174.824039][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  174.824540][  T228] R13: ffff888005a12128 R14: ffff888005a12008 R15: ffff888005a12000
[  174.825035][  T228] FS:  00007f08424df740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  174.825637][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  174.826045][  T228] CR2: 0000564e1ed4d47c CR3: 0000000002ace004 CR4: 0000000000772ef0
[  174.826549][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  174.827036][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  174.827537][  T228] PKRU: 55555554
[  174.827790][  T228] Call Trace:
[  174.828049][  T228]  <TASK>
[ 174.828224][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.828514][ T228] ? __warn (kernel/panic.c:748) 
[ 174.828684][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.828891][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 174.829107][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 174.829262][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 174.829481][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 174.829724][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.829934][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 174.830191][ 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) 
[ 174.830401][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 174.830654][ T228] register_netdevice (net/core/dev.c:11003) 
[ 174.830900][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 174.831113][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 174.831333][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 174.831628][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 174.831910][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 174.832202][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 174.832405][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 174.832640][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 174.832903][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 174.833104][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 174.833305][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 174.833541][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 174.833770][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 174.833932][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 174.834154][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 174.834362][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 174.834586][ T228] ksys_write (fs/read_write.c:731) 
[ 174.834754][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 174.834965][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 174.835168][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  174.835419][  T228] RIP: 0033:0x7f0842620b77
[ 174.835663][ 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
[  174.836346][  T228] RSP: 002b:00007ffdfc7445a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  174.836680][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  174.836977][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  174.837272][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  174.837584][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  174.837895][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  179.662896][  T228] ------------[ cut here ]------------
| [ 179.663250][ 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) 
| [  179.663664][  T228] Modules linked in: netdevsim
| [  179.664330][  T228] Tainted: [W]=WARN
[  179.664516][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 179.664769][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.665027][ 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
[  179.665726][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  179.665971][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  179.666266][  T228] RDX: 0000000000000000 RSI: ffff8880055aac98 RDI: ffff888009afd0a8
[  179.666562][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  179.666856][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  179.667178][  T228] R13: ffff8880055aa128 R14: ffff8880055aa008 R15: ffff8880055aa000
[  179.667471][  T228] FS:  00007f08424df740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  179.667841][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  179.668095][  T228] CR2: 00007f08425d8890 CR3: 0000000002ace005 CR4: 0000000000772ef0
[  179.668384][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  179.668698][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  179.668982][  T228] PKRU: 55555554
[  179.669364][  T228] Call Trace:
[  179.669560][  T228]  <TASK>
[ 179.669687][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.669902][ T228] ? __warn (kernel/panic.c:748) 
[ 179.670052][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.670247][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 179.670466][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 179.670615][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 179.670834][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 179.671045][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.671249][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 179.671505][ 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) 
[ 179.671718][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 179.671930][ T228] register_netdevice (net/core/dev.c:11003) 
[ 179.672125][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 179.672333][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 179.672567][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 179.672821][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 179.673094][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 179.673345][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 179.673550][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 179.673751][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 179.674016][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 179.674205][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 179.674396][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 179.674603][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 179.674805][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 179.674966][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 179.675159][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 179.675358][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 179.675602][ T228] ksys_write (fs/read_write.c:731) 
[ 179.675753][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 179.675973][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 179.676168][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  179.676400][  T228] RIP: 0033:0x7f0842620b77
[ 179.676608][ 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
[  179.677331][  T228] RSP: 002b:00007ffdfc743d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  179.677693][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  179.678003][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  179.678284][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  179.678579][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  179.678896][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  181.482610][  T228] ------------[ cut here ]------------
| [ 181.483192][ 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) 
| [  181.484023][  T228] Modules linked in: netdevsim
| [  181.485096][  T228] Tainted: [W]=WARN
[  181.485367][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 181.485793][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.486198][ 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
[  181.487316][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  181.487773][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  181.488256][  T228] RDX: 0000000000000000 RSI: ffff88800ea52c98 RDI: ffff888009afd0a8
[  181.488773][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  181.489252][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  181.489763][  T228] R13: ffff88800ea52128 R14: ffff88800ea52008 R15: ffff88800ea52000
[  181.490247][  T228] FS:  00007f08424df740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  181.490862][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  181.491269][  T228] CR2: 0000564e1edd1408 CR3: 0000000002ace002 CR4: 0000000000772ef0
[  181.491767][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  181.492244][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  181.493064][  T228] PKRU: 55555554
[  181.493323][  T228] Call Trace:
[  181.493589][  T228]  <TASK>
[ 181.493761][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.494139][ T228] ? __warn (kernel/panic.c:748) 
[ 181.494396][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.494753][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 181.495101][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 181.495355][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 181.495714][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 181.496087][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.496475][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 181.496919][ 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) 
[ 181.497289][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 181.497651][ T228] register_netdevice (net/core/dev.c:11003) 
[ 181.498002][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 181.498368][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 181.498774][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 181.499209][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 181.499703][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 181.500141][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 181.500507][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 181.500880][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 181.501299][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 181.501662][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 181.502007][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 181.502347][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 181.502721][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 181.503027][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 181.503373][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 181.503742][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 181.504114][ T228] ksys_write (fs/read_write.c:731) 
[ 181.504378][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 181.504763][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 181.505099][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  181.505534][  T228] RIP: 0033:0x7f0842620b77
[ 181.505878][ 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
[  181.507047][  T228] RSP: 002b:00007ffdfc743d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  181.507562][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  181.508057][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  181.508616][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  181.509105][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  181.509596][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  183.208802][  T228] ------------[ cut here ]------------
| [ 183.209386][ 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) 
| [  183.210191][  T228] Modules linked in: netdevsim
| [  183.211287][  T228] Tainted: [W]=WARN
[  183.211590][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 183.212029][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 183.212504][ 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
[  183.213600][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  183.214024][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  183.214558][  T228] RDX: 0000000000000000 RSI: ffff88800d96ac98 RDI: ffff888009afd0a8
[  183.215087][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  183.215630][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  183.216159][  T228] R13: ffff88800d96a128 R14: ffff88800d96a008 R15: ffff88800d96a000
[  183.216667][  T228] FS:  00007f08424df740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  183.217221][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  183.217695][  T228] CR2: 0000558eb055bf38 CR3: 0000000002ace006 CR4: 0000000000772ef0
[  183.218191][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  183.218713][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  183.219658][  T228] PKRU: 55555554
[  183.219929][  T228] Call Trace:
[  183.220187][  T228]  <TASK>
[ 183.220376][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 183.220754][ T228] ? __warn (kernel/panic.c:748) 
[ 183.221035][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 183.221389][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 183.221780][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 183.222056][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 183.222403][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 183.222798][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 183.223170][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 183.223649][ 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) 
[ 183.224033][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 183.224388][ T228] register_netdevice (net/core/dev.c:11003) 
[ 183.224746][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 183.225077][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 183.225464][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 183.225885][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 183.226337][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 183.226763][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 183.227067][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 183.227367][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 183.227774][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 183.228086][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 183.228400][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 183.228743][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 183.229071][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 183.229333][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 183.229677][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 183.230005][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 183.230334][ T228] ksys_write (fs/read_write.c:731) 
[ 183.230611][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 183.230938][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 183.231268][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  183.231679][  T228] RIP: 0033:0x7f0842620b77
[ 183.232003][ 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
[  183.233104][  T228] RSP: 002b:00007ffdfc743d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  183.233611][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  183.234117][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  183.234623][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  183.235113][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  183.235626][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  184.949792][  T228] ------------[ cut here ]------------
| [ 184.950202][ 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) 
| [  184.950666][  T228] Modules linked in: netdevsim
| [  184.951334][  T228] Tainted: [W]=WARN
[  184.951538][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 184.951808][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.952090][ 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
[  184.952862][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  184.953145][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  184.953485][  T228] RDX: 0000000000000000 RSI: ffff888009e9ac98 RDI: ffff888009afd0a8
[  184.953888][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  184.954257][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  184.954720][  T228] R13: ffff888009e9a128 R14: ffff888009e9a008 R15: ffff888009e9a000
[  184.955087][  T228] FS:  00007f08424df740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  184.955576][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  184.955903][  T228] CR2: 00007f08425d8890 CR3: 0000000002ace001 CR4: 0000000000772ef0
[  184.956251][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  184.956895][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  184.957273][  T228] PKRU: 55555554
[  184.957493][  T228] Call Trace:
[  184.957724][  T228]  <TASK>
[ 184.957847][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.958080][ T228] ? __warn (kernel/panic.c:748) 
[ 184.958262][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.958526][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 184.958772][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 184.958965][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 184.959214][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 184.959510][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.959817][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 184.960169][ 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) 
[ 184.960400][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 184.960719][ T228] register_netdevice (net/core/dev.c:11003) 
[ 184.960969][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 184.961263][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 184.961591][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 184.961952][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 184.962283][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 184.962616][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 184.962917][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 184.963165][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 184.963481][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 184.963714][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 184.963978][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 184.964220][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 184.964487][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 184.964682][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 184.964932][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 184.965180][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 184.965440][ T228] ksys_write (fs/read_write.c:731) 
[ 184.965626][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 184.965885][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 184.966120][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  184.966408][  T228] RIP: 0033:0x7f0842620b77
[ 184.966668][ 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
[  184.967464][  T228] RSP: 002b:00007ffdfc743d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  184.967831][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  184.968179][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  184.968591][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  184.969009][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  184.969421][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  186.657935][  T228] ------------[ cut here ]------------
| [ 186.658318][ 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) 
| [  186.658795][  T228] Modules linked in: netdevsim
| [  186.659504][  T228] Tainted: [W]=WARN
[  186.659680][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 186.659973][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.660267][ 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
[  186.661061][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  186.661359][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  186.661714][  T228] RDX: 0000000000000000 RSI: ffff88800ea5ac98 RDI: ffff888009afd0a8
[  186.662054][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  186.662389][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  186.662736][  T228] R13: ffff88800ea5a128 R14: ffff88800ea5a008 R15: ffff88800ea5a000
[  186.663076][  T228] FS:  00007f08424df740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  186.663485][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  186.663771][  T228] CR2: 00007fecb1b42f10 CR3: 0000000002ace006 CR4: 0000000000772ef0
[  186.664128][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  186.664698][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  186.665051][  T228] PKRU: 55555554
[  186.665230][  T228] Call Trace:
[  186.665411][  T228]  <TASK>
[ 186.665550][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.665786][ T228] ? __warn (kernel/panic.c:748) 
[ 186.665969][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.666206][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 186.666461][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 186.666649][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 186.666887][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 186.667133][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.667379][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 186.667698][ 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) 
[ 186.667944][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 186.668188][ T228] register_netdevice (net/core/dev.c:11003) 
[ 186.668449][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 186.668707][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 186.668964][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 186.669268][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 186.669656][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 186.670031][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 186.670266][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 186.670526][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 186.670827][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 186.671057][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 186.671294][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 186.671546][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 186.671790][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 186.671981][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 186.672216][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 186.672471][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 186.672713][ T228] ksys_write (fs/read_write.c:731) 
[ 186.672899][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 186.673142][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 186.673377][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  186.673700][  T228] RIP: 0033:0x7f0842620b77
[ 186.673920][ 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
[  186.674659][  T228] RSP: 002b:00007ffdfc743d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  186.674968][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  186.675298][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  186.675617][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  186.675930][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  186.676225][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  188.365696][  T228] ------------[ cut here ]------------
| [ 188.366070][ 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) 
| [  188.366593][  T228] Modules linked in: netdevsim
| [  188.367407][  T228] Tainted: [W]=WARN
[  188.367590][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 188.367860][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 188.368151][ 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
[  188.368921][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  188.369211][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  188.369551][  T228] RDX: 0000000000000000 RSI: ffff888005a12c98 RDI: ffff888009afd0a8
[  188.369880][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  188.370218][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  188.370552][  T228] R13: ffff888005a12128 R14: ffff888005a12008 R15: ffff888005a12000
[  188.370876][  T228] FS:  00007f08424df740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  188.371328][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  188.371705][  T228] CR2: 00007fecb19255a0 CR3: 0000000002ace006 CR4: 0000000000772ef0
[  188.372092][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  188.372671][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  188.373035][  T228] PKRU: 55555554
[  188.373262][  T228] Call Trace:
[  188.373507][  T228]  <TASK>
[ 188.373644][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 188.373867][ T228] ? __warn (kernel/panic.c:748) 
[ 188.374192][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 188.374416][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 188.374660][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 188.374828][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 188.375047][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 188.375297][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 188.375541][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 188.375824][ 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) 
[ 188.376059][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 188.376290][ T228] register_netdevice (net/core/dev.c:11003) 
[ 188.376528][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 188.376763][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 188.377002][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 188.377320][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 188.377757][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 188.378133][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 188.378484][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 188.378842][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 188.379280][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 188.379650][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 188.380012][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 188.380466][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 188.380828][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 188.381102][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 188.381466][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 188.381804][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 188.382154][ T228] ksys_write (fs/read_write.c:731) 
[ 188.382417][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 188.382797][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 188.383133][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  188.383568][  T228] RIP: 0033:0x7f0842620b77
[ 188.383913][ 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
[  188.385088][  T228] RSP: 002b:00007ffdfc743d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  188.385604][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  188.385989][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  188.386316][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  188.386652][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  188.386969][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  190.142502][  T228] ------------[ cut here ]------------
| [ 190.142893][ 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) 
| [  190.143358][  T228] Modules linked in: netdevsim
| [  190.144252][  T228] Tainted: [W]=WARN
[  190.144442][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 190.144724][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.145031][ 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
[  190.145770][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  190.146058][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  190.146398][  T228] RDX: 0000000000000000 RSI: ffff8880055aac98 RDI: ffff888009afd0a8
[  190.146752][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  190.147091][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  190.147441][  T228] R13: ffff8880055aa128 R14: ffff8880055aa008 R15: ffff8880055aa000
[  190.147787][  T228] FS:  00007f08424df740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  190.148184][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  190.148750][  T228] CR2: 00007fecb19255a0 CR3: 0000000002ace001 CR4: 0000000000772ef0
[  190.149095][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  190.149441][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  190.149782][  T228] PKRU: 55555554
[  190.149957][  T228] Call Trace:
[  190.150129][  T228]  <TASK>
[ 190.150248][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.150499][ T228] ? __warn (kernel/panic.c:748) 
[ 190.150683][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.150913][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 190.151153][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 190.151328][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 190.151569][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 190.151815][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.152058][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 190.152346][ 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) 
[ 190.152592][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 190.152827][ T228] register_netdevice (net/core/dev.c:11003) 
[ 190.153059][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 190.153298][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 190.153564][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 190.153859][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 190.154186][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 190.154502][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 190.154736][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 190.154974][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 190.155270][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 190.155514][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 190.155746][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 190.155979][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 190.156215][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 190.156401][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 190.156647][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 190.156888][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 190.157132][ T228] ksys_write (fs/read_write.c:731) 
[ 190.157311][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 190.157566][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 190.157804][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  190.158092][  T228] RIP: 0033:0x7f0842620b77
[ 190.158332][ 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
[  190.159139][  T228] RSP: 002b:00007ffdfc743d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  190.159499][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  190.159840][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  190.160186][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  190.160556][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  190.160898][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  191.851551][  T228] ------------[ cut here ]------------
| [ 191.851970][ 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) 
| [  191.852509][  T228] Modules linked in: netdevsim
| [  191.853208][  T228] Tainted: [W]=WARN
[  191.853368][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 191.853637][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.853936][ 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
[  191.854664][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  191.854941][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  191.855257][  T228] RDX: 0000000000000000 RSI: ffff88800ea52c98 RDI: ffff888009afd0a8
[  191.855585][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  191.855971][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  191.856367][  T228] R13: ffff88800ea52128 R14: ffff88800ea52008 R15: ffff88800ea52000
[  191.856848][  T228] FS:  00007f08424df740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  191.857409][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  191.857901][  T228] CR2: 0000564e1edd1408 CR3: 0000000002ace005 CR4: 0000000000772ef0
[  191.858492][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  191.859050][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  191.860009][  T228] PKRU: 55555554
[  191.860270][  T228] Call Trace:
[  191.860548][  T228]  <TASK>
[ 191.860733][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.861080][ T228] ? __warn (kernel/panic.c:748) 
[ 191.861350][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.861717][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 191.862090][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 191.862376][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 191.862725][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 191.863083][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.863463][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 191.863899][ 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) 
[ 191.864275][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 191.864650][ T228] register_netdevice (net/core/dev.c:11003) 
[ 191.865004][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 191.865391][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 191.865829][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 191.866285][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 191.866768][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 191.867196][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 191.867553][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 191.867894][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 191.868315][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 191.868674][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 191.869030][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 191.869332][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 191.869692][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 191.869973][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 191.870297][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 191.870671][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 191.871046][ T228] ksys_write (fs/read_write.c:731) 
[ 191.871280][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 191.871523][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 191.871730][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  191.871992][  T228] RIP: 0033:0x7f0842620b77
[ 191.872229][ 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
[  191.872978][  T228] RSP: 002b:00007ffdfc743d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  191.873280][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  191.873578][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  191.873876][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  191.874199][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  191.874500][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  193.580563][  T228] ------------[ cut here ]------------
| [ 193.580928][ 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) 
| [  193.581375][  T228] Modules linked in: netdevsim
| [  193.582419][  T228] Tainted: [W]=WARN
[  193.582692][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 193.583141][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 193.583643][ 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
[  193.584870][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  193.585301][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  193.585822][  T228] RDX: 0000000000000000 RSI: ffff88800d96ac98 RDI: ffff888009afd0a8
[  193.586358][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  193.586912][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  193.587464][  T228] R13: ffff88800d96a128 R14: ffff88800d96a008 R15: ffff88800d96a000
[  193.587997][  T228] FS:  00007f08424df740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  193.588624][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  193.589044][  T228] CR2: 0000564e1ef34fe8 CR3: 0000000002ace001 CR4: 0000000000772ef0
[  193.589995][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  193.590506][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  193.590977][  T228] PKRU: 55555554
[  193.591219][  T228] Call Trace:
[  193.591481][  T228]  <TASK>
[ 193.591682][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 193.592022][ T228] ? __warn (kernel/panic.c:748) 
[ 193.592285][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 193.592643][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 193.592979][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 193.593215][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 193.593525][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 193.593742][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 193.593967][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 193.594244][ 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) 
[ 193.594464][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 193.594670][ T228] register_netdevice (net/core/dev.c:11003) 
[ 193.594879][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 193.595101][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 193.595319][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 193.595662][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 193.595940][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 193.596212][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 193.596417][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 193.596638][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 193.596902][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 193.597117][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 193.597327][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 193.597542][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 193.597766][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 193.597938][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 193.598153][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 193.598396][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 193.598634][ T228] ksys_write (fs/read_write.c:731) 
[ 193.598802][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 193.599052][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 193.599267][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  193.599556][  T228] RIP: 0033:0x7f0842620b77
[ 193.599779][ 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
[  193.600528][  T228] RSP: 002b:00007ffdfc743d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  193.600833][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  193.601144][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  193.601453][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  193.601757][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002
[  193.602053][  T228] R13: 00007f08426dc760 R14: 0000000000000002 R15: 00007f08426d79c0
| [  195.290225][  T228] ------------[ cut here ]------------
| [ 195.290734][ 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) 
| [  195.291342][  T228] Modules linked in: netdevsim
| [  195.292289][  T228] Tainted: [W]=WARN
[  195.292544][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 195.292913][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 195.293307][ 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
[  195.294695][  T228] RSP: 0018:ffffc90000b67910 EFLAGS: 00010246
[  195.295083][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  195.295566][  T228] RDX: 0000000000000000 RSI: ffff888009e9ac98 RDI: ffff888009afd0a8
[  195.296027][  T228] RBP: ffffffffb4d23440 R08: 0000000000000000 R09: fffffbfff657d83c
[  195.296489][  T228] R10: ffffffffb2bec1e7 R11: ffff888009afc5c0 R12: 0000000000000000
[  195.296986][  T228] R13: ffff888009e9a128 R14: ffff888009e9a008 R15: ffff888009e9a000
[  195.297467][  T228] FS:  00007f08424df740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  195.298019][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  195.298415][  T228] CR2: 0000558e85c78630 CR3: 0000000002ace003 CR4: 0000000000772ef0
[  195.298900][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  195.299371][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  195.299870][  T228] PKRU: 55555554
[  195.300110][  T228] Call Trace:
[  195.300392][  T228]  <TASK>
[ 195.300582][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 195.300908][ T228] ? __warn (kernel/panic.c:748) 
[ 195.301154][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 195.301496][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 195.301822][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 195.302068][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 195.302392][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 195.302773][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 195.303110][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 195.303539][ 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) 
[ 195.303869][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 195.304217][ T228] register_netdevice (net/core/dev.c:11003) 
[ 195.304564][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 195.304906][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 195.305254][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 195.305687][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 195.306129][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 195.306540][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 195.306909][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 195.307226][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 195.307659][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 195.307987][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 195.308311][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 195.308649][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 195.308956][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 195.309204][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 195.309543][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 195.309883][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 195.310188][ T228] ksys_write (fs/read_write.c:731) 
[ 195.310459][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 195.310775][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 195.311073][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  195.311491][  T228] RIP: 0033:0x7f0842620b77
[ 195.311813][ 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
[  195.312918][  T228] RSP: 002b:00007ffdfc743d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  195.313446][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0842620b77
[  195.313935][  T228] RDX: 0000000000000002 RSI: 0000564e1ef36130 RDI: 0000000000000001
[  195.314376][  T228] RBP: 0000564e1ef36130 R08: 0000000000000000 R09: 00007f08426934e0
[  195.314847][  T228] R10: 00007f08426933e0 R11: 0000000000000246 R12: 0000000000000002


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