======================================
| 0
| xx__-> [   12.767560][  T228] ------------[ cut here ]------------
| [ 12.767931][ 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) 
| [   12.768404][  T228] Modules linked in: netdevsim
[   12.769074][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.769319][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.769581][ 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
[   12.770554][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[   12.770838][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   12.771194][  T228] RDX: 0000000000000000 RSI: ffff88800a7fac98 RDI: ffff888002b62de8
[   12.771558][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[   12.771890][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[   12.772241][  T228] R13: ffff88800a7fa128 R14: ffff88800a7fa008 R15: ffff88800a7fa000
[   12.772651][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   12.773025][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.773298][  T228] CR2: 000055ede47a447c CR3: 0000000008eca002 CR4: 0000000000772ef0
[   12.773586][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   12.773869][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   12.774184][  T228] PKRU: 55555554
[   12.774331][  T228] Call Trace:
[   12.774482][  T228]  <TASK>
[ 12.774593][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.774796][ T228] ? __warn (kernel/panic.c:748) 
[ 12.774944][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.775200][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 12.775421][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 12.775587][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 12.775779][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 12.775980][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.776202][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 12.776459][ 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) 
[ 12.776683][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 12.776879][ T228] register_netdevice (net/core/dev.c:11003) 
[ 12.777102][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 12.777334][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 12.777536][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 12.777788][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 12.778045][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 12.778313][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 12.778505][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 12.778736][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 12.778978][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 12.779202][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 12.779391][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 12.779582][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 12.779784][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 12.779935][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 12.780143][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 12.780344][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 12.780544][ T228] ksys_write (fs/read_write.c:731) 
[ 12.780693][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 12.780912][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 12.781238][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   12.781638][  T228] RIP: 0033:0x7fa2bf222b77
[ 12.781962][ 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
[   12.783255][  T228] RSP: 002b:00007ffe436e43f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   12.783734][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[   12.784072][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[   12.784367][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[   12.784674][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[   12.784960][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  161.659310][  T228] ------------[ cut here ]------------
| [ 161.659633][ 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) 
| [  161.660016][  T228] Modules linked in: netdevsim
| [  161.660617][  T228] Tainted: [W]=WARN
[  161.660771][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 161.661011][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.661307][ 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
[  161.662027][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  161.662404][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  161.662687][  T228] RDX: 0000000000000000 RSI: ffff88800258ac98 RDI: ffff888002b62de8
[  161.663010][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  161.663427][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  161.663772][  T228] R13: ffff88800258a128 R14: ffff88800258a008 R15: ffff88800258a000
[  161.664201][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[  161.664585][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  161.664851][  T228] CR2: 000055ede47c94f8 CR3: 0000000008eca002 CR4: 0000000000772ef0
[  161.665307][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  161.665672][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  161.666176][  T228] PKRU: 55555554
[  161.666358][  T228] Call Trace:
[  161.666568][  T228]  <TASK>
[ 161.666689][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.666923][ T228] ? __warn (kernel/panic.c:748) 
[ 161.667144][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.667381][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 161.667598][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 161.667757][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 161.667980][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 161.668239][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.668471][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 161.668751][ 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) 
[ 161.668970][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 161.669233][ T228] register_netdevice (net/core/dev.c:11003) 
[ 161.669461][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 161.669688][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 161.669911][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 161.670211][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 161.670516][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 161.670787][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.671001][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 161.671246][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 161.671535][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.671743][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 161.671953][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 161.672189][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 161.672490][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 161.672655][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 161.672903][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 161.673133][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 161.673356][ T228] ksys_write (fs/read_write.c:731) 
[ 161.673525][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 161.673758][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 161.673970][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  161.674240][  T228] RIP: 0033:0x7fa2bf222b77
[ 161.674452][ 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
[  161.675163][  T228] RSP: 002b:00007ffe436e3088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  161.675513][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  161.675918][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  161.676283][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  161.676639][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  161.676962][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  163.350245][  T228] ------------[ cut here ]------------
| [ 163.350659][ 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) 
| [  163.351177][  T228] Modules linked in: netdevsim
| [  163.351879][  T228] Tainted: [W]=WARN
[  163.352079][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 163.352366][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.352657][ 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
[  163.353466][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  163.353808][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  163.354190][  T228] RDX: 0000000000000000 RSI: ffff888004f02c98 RDI: ffff888002b62de8
[  163.354579][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  163.354962][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  163.355279][  T228] R13: ffff888004f02128 R14: ffff888004f02008 R15: ffff888004f02000
[  163.355608][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  163.356208][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  163.356645][  T228] CR2: 000055ede47a447c CR3: 0000000008eca005 CR4: 0000000000772ef0
[  163.357162][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  163.357606][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  163.358131][  T228] PKRU: 55555554
[  163.358416][  T228] Call Trace:
[  163.358681][  T228]  <TASK>
[ 163.358885][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.359263][ T228] ? __warn (kernel/panic.c:748) 
[ 163.359538][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.359894][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 163.360276][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 163.360550][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 163.360899][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 163.361300][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.361665][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 163.362102][ 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) 
[ 163.362447][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 163.362783][ T228] register_netdevice (net/core/dev.c:11003) 
[ 163.363139][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 163.363524][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 163.363911][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 163.364383][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 163.364857][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 163.365300][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.365634][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 163.366014][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 163.366445][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.366762][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 163.367112][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 163.367450][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 163.367786][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 163.368074][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 163.368428][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 163.368794][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 163.369183][ T228] ksys_write (fs/read_write.c:731) 
[ 163.369446][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 163.369832][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 163.370215][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  163.370655][  T228] RIP: 0033:0x7fa2bf222b77
[ 163.371024][ 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
[  163.372201][  T228] RSP: 002b:00007ffe436e3088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  163.372726][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  163.373272][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  163.373774][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  163.374300][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  163.374801][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  165.016618][  T228] ------------[ cut here ]------------
| [ 165.016899][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  165.017392][  T228] Modules linked in: netdevsim
| [  165.018154][  T228] Tainted: [W]=WARN
[  165.018336][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 165.018624][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.018931][ 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
[  165.019750][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  165.020059][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  165.020424][  T228] RDX: 0000000000000000 RSI: ffff88800a6aac98 RDI: ffff888002b62de8
[  165.020709][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  165.020994][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  165.021277][  T228] R13: ffff88800a6aa128 R14: ffff88800a6aa008 R15: ffff88800a6aa000
[  165.021566][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  165.021885][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  165.022143][  T228] CR2: 00007fd4c7d3d7b0 CR3: 0000000008eca001 CR4: 0000000000772ef0
[  165.022432][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  165.022706][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  165.022989][  T228] PKRU: 55555554
[  165.023144][  T228] Call Trace:
[  165.023286][  T228]  <TASK>
[ 165.023393][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.023584][ T228] ? __warn (kernel/panic.c:748) 
[ 165.023732][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.023976][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 165.024225][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 165.024421][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 165.024651][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 165.024895][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 165.025145][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 165.025449][ 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) 
[ 165.025693][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 165.025933][ T228] register_netdevice (net/core/dev.c:11003) 
[ 165.026181][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 165.026419][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 165.026674][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 165.026979][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 165.027304][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 165.027612][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 165.027844][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 165.028092][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 165.028382][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 165.028608][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 165.028837][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 165.029078][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 165.029313][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 165.029511][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 165.029743][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 165.029988][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 165.030234][ T228] ksys_write (fs/read_write.c:731) 
[ 165.030419][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 165.030655][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 165.030884][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  165.031175][  T228] RIP: 0033:0x7fa2bf222b77
[ 165.031414][ 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
[  165.032201][  T228] RSP: 002b:00007ffe436e3088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  165.032545][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  165.032881][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  165.033229][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  165.033564][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  165.033900][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  166.748005][  T228] ------------[ cut here ]------------
| [ 166.748359][ 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) 
| [  166.748798][  T228] Modules linked in: netdevsim
| [  166.749452][  T228] Tainted: [W]=WARN
[  166.749609][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 166.749882][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.750162][ 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
[  166.750947][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  166.751223][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  166.751543][  T228] RDX: 0000000000000000 RSI: ffff88800d952c98 RDI: ffff888002b62de8
[  166.751897][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  166.752225][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  166.752524][  T228] R13: ffff88800d952128 R14: ffff88800d952008 R15: ffff88800d952000
[  166.752838][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  166.753329][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  166.753702][  T228] CR2: 000055ede47d6018 CR3: 0000000008eca001 CR4: 0000000000772ef0
[  166.754193][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  166.754722][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  166.755213][  T228] PKRU: 55555554
[  166.755475][  T228] Call Trace:
[  166.755736][  T228]  <TASK>
[ 166.755926][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.756301][ T228] ? __warn (kernel/panic.c:748) 
[ 166.756567][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.756858][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 166.757219][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 166.757485][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 166.758561][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 166.758844][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.759089][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 166.759387][ 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) 
[ 166.759654][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 166.759876][ T228] register_netdevice (net/core/dev.c:11003) 
[ 166.760144][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 166.760384][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 166.760627][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 166.760916][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 166.761237][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 166.761539][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.761772][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 166.762006][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 166.762319][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.762662][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 166.762995][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 166.763233][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 166.763480][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 166.763666][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 166.763899][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 166.764139][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 166.764376][ T228] ksys_write (fs/read_write.c:731) 
[ 166.764547][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 166.764787][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 166.765016][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  166.765328][  T228] RIP: 0033:0x7fa2bf222b77
[ 166.765711][ 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
[  166.766930][  T228] RSP: 002b:00007ffe436e3088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  166.767487][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  166.767848][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  166.768179][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  166.768526][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  166.768855][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  168.373772][  T228] ------------[ cut here ]------------
| [ 168.374143][ 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) 
| [  168.374723][  T228] Modules linked in: netdevsim
| [  168.375357][  T228] Tainted: [W]=WARN
[  168.375504][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 168.375769][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.376087][ 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
[  168.376914][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  168.377179][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  168.377503][  T228] RDX: 0000000000000000 RSI: ffff88800e10ac98 RDI: ffff888002b62de8
[  168.377888][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  168.378198][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  168.378564][  T228] R13: ffff88800e10a128 R14: ffff88800e10a008 R15: ffff88800e10a000
[  168.378928][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  168.379390][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  168.379702][  T228] CR2: 000055ede47c95e8 CR3: 0000000008eca005 CR4: 0000000000772ef0
[  168.380081][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  168.380405][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  168.380765][  T228] PKRU: 55555554
[  168.380924][  T228] Call Trace:
[  168.381126][  T228]  <TASK>
[ 168.381273][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.381495][ T228] ? __warn (kernel/panic.c:748) 
[ 168.381697][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.381916][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 168.382252][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 168.382434][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 168.382734][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 168.382982][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.383263][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 168.383626][ 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) 
[ 168.383855][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 168.384095][ T228] register_netdevice (net/core/dev.c:11003) 
[ 168.384349][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 168.384657][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 168.384879][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 168.385224][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 168.385563][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 168.385891][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 168.386175][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 168.386404][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 168.386804][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 168.387130][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 168.387355][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 168.387581][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 168.387798][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 168.388027][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 168.388286][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 168.388539][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 168.388810][ T228] ksys_write (fs/read_write.c:731) 
[ 168.388980][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 168.389217][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 168.389439][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  168.389799][  T228] RIP: 0033:0x7fa2bf222b77
[ 168.390018][ 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
[  168.390991][  T228] RSP: 002b:00007ffe436e3088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  168.391305][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  168.391623][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  168.391918][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  168.392298][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  168.392658][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  170.086340][  T228] ------------[ cut here ]------------
| [ 170.086650][ 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) 
| [  170.087240][  T228] Modules linked in: netdevsim
| [  170.087873][  T228] Tainted: [W]=WARN
[  170.088041][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 170.088297][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 170.088564][ 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
[  170.089314][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  170.089578][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  170.089873][  T228] RDX: 0000000000000000 RSI: ffff88800a7fac98 RDI: ffff888002b62de8
[  170.090182][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  170.090476][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  170.090760][  T228] R13: ffff88800a7fa128 R14: ffff88800a7fa008 R15: ffff88800a7fa000
[  170.091061][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  170.091414][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  170.091656][  T228] CR2: 000055ede47d6018 CR3: 0000000008eca005 CR4: 0000000000772ef0
[  170.091968][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  170.092286][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  170.092591][  T228] PKRU: 55555554
[  170.092743][  T228] Call Trace:
[  170.092898][  T228]  <TASK>
[ 170.093005][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 170.093214][ T228] ? __warn (kernel/panic.c:748) 
[ 170.093380][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 170.093589][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 170.093801][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 170.093958][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 170.094176][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 170.094398][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 170.094612][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 170.094872][ 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) 
[ 170.095101][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 170.095299][ T228] register_netdevice (net/core/dev.c:11003) 
[ 170.095500][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 170.095736][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 170.095957][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 170.096236][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 170.096522][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 170.096789][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 170.096998][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 170.097224][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 170.097492][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 170.097682][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 170.097877][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 170.098095][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 170.098296][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 170.098481][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 170.098696][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 170.098912][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 170.099141][ T228] ksys_write (fs/read_write.c:731) 
[ 170.099301][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 170.099525][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 170.099728][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  170.099984][  T228] RIP: 0033:0x7fa2bf222b77
[ 170.100213][ 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
[  170.100929][  T228] RSP: 002b:00007ffe436e3088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  170.101246][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  170.101552][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  170.101849][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  170.102182][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  170.102475][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  171.737002][  T228] ------------[ cut here ]------------
| [ 171.737384][ 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) 
| [  171.737987][  T228] Modules linked in: netdevsim
| [  171.738928][  T228] Tainted: [W]=WARN
[  171.739174][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 171.739552][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.739947][ 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
[  171.741008][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  171.741408][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  171.741869][  T228] RDX: 0000000000000000 RSI: ffff88800258ac98 RDI: ffff888002b62de8
[  171.742331][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  171.742792][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  171.743264][  T228] R13: ffff88800258a128 R14: ffff88800258a008 R15: ffff88800258a000
[  171.743712][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  171.744257][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  171.744635][  T228] CR2: 000055ede47a447c CR3: 0000000008eca005 CR4: 0000000000772ef0
[  171.745087][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  171.745530][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  171.745992][  T228] PKRU: 55555554
[  171.746231][  T228] Call Trace:
[  171.746465][  T228]  <TASK>
[ 171.746624][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.746927][ T228] ? __warn (kernel/panic.c:748) 
[ 171.747174][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.747484][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 171.747795][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 171.748024][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 171.748345][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 171.748671][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.748986][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 171.749376][ 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) 
[ 171.749698][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 171.750018][ T228] register_netdevice (net/core/dev.c:11003) 
[ 171.750345][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 171.750683][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 171.751015][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 171.751419][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 171.751839][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 171.752257][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 171.752563][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 171.752894][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 171.753301][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 171.753614][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 171.753927][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 171.754265][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 171.754584][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 171.754834][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 171.755172][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 171.755504][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 171.755833][ T228] ksys_write (fs/read_write.c:731) 
[ 171.756087][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 171.756411][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 171.756715][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  171.757131][  T228] RIP: 0033:0x7fa2bf222b77
[ 171.757447][ 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
[  171.758514][  T228] RSP: 002b:00007ffe436e3088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  171.758970][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  171.759437][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  171.759881][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  171.760349][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  171.760808][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  173.391236][  T228] ------------[ cut here ]------------
| [ 173.391652][ 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) 
| [  173.392881][  T228] Modules linked in: netdevsim
| [  173.393859][  T228] Tainted: [W]=WARN
[  173.394125][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 173.394532][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 173.394939][ 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
[  173.395821][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  173.396171][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  173.396498][  T228] RDX: 0000000000000000 RSI: ffff888004f02c98 RDI: ffff888002b62de8
[  173.396796][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  173.397129][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  173.397426][  T228] R13: ffff888004f02128 R14: ffff888004f02008 R15: ffff888004f02000
[  173.397725][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  173.398095][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  173.398345][  T228] CR2: 000055ede4963de8 CR3: 0000000008eca006 CR4: 0000000000772ef0
[  173.398685][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  173.398991][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  173.399503][  T228] PKRU: 55555554
[  173.399758][  T228] Call Trace:
[  173.399995][  T228]  <TASK>
[ 173.400184][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 173.400498][ T228] ? __warn (kernel/panic.c:748) 
[ 173.400661][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 173.400859][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 173.401108][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 173.401303][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 173.401501][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 173.401712][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 173.401938][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 173.402241][ 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) 
[ 173.402448][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 173.402650][ T228] register_netdevice (net/core/dev.c:11003) 
[ 173.402861][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 173.403093][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 173.403327][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 173.403589][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 173.403879][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 173.404170][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 173.404385][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 173.404598][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 173.404851][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 173.405125][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 173.405466][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 173.405832][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 173.406129][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 173.406308][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 173.406541][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 173.406748][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 173.406952][ T228] ksys_write (fs/read_write.c:731) 
[ 173.407144][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 173.407373][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 173.407579][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  173.407835][  T228] RIP: 0033:0x7fa2bf222b77
[ 173.408084][ 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
[  173.408774][  T228] RSP: 002b:00007ffe436e3088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  173.409130][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  173.409446][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  173.409732][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  173.410044][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  173.410410][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  175.035457][  T228] ------------[ cut here ]------------
| [ 175.035830][ 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) 
| [  175.036310][  T228] Modules linked in: netdevsim
| [  175.037069][  T228] Tainted: [W]=WARN
[  175.037274][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 175.037651][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 175.038246][ 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
[  175.039402][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  175.039802][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  175.040309][  T228] RDX: 0000000000000000 RSI: ffff88800a6aac98 RDI: ffff888002b62de8
[  175.040779][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  175.041270][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  175.041731][  T228] R13: ffff88800a6aa128 R14: ffff88800a6aa008 R15: ffff88800a6aa000
[  175.042082][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  175.042570][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  175.042958][  T228] CR2: 000055ede47a447c CR3: 0000000008eca006 CR4: 0000000000772ef0
[  175.043471][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  175.043951][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  175.044478][  T228] PKRU: 55555554
[  175.044721][  T228] Call Trace:
[  175.044965][  T228]  <TASK>
[ 175.045145][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 175.045478][ T228] ? __warn (kernel/panic.c:748) 
[ 175.045745][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 175.046093][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 175.046383][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 175.046536][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 175.046744][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 175.046966][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 175.047225][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 175.047491][ 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) 
[ 175.047711][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 175.047956][ T228] register_netdevice (net/core/dev.c:11003) 
[ 175.048210][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 175.048460][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 175.048722][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 175.049124][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 175.049439][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 175.049762][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 175.050032][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 175.050300][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 175.050579][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 175.050795][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 175.051069][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 175.051327][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 175.051606][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 175.051827][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 175.052145][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 175.052488][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 175.052823][ T228] ksys_write (fs/read_write.c:731) 
[ 175.053078][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 175.053406][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 175.053727][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  175.054133][  T228] RIP: 0033:0x7fa2bf222b77
[ 175.054470][ 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
[  175.055429][  T228] RSP: 002b:00007ffe436e3088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  175.055877][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  175.056405][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  175.056880][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  175.057367][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  175.057852][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  176.699489][  T228] ------------[ cut here ]------------
| [ 176.699759][ 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) 
| [  176.700435][  T228] Modules linked in: netdevsim
| [  176.701023][  T228] Tainted: [W]=WARN
[  176.701182][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 176.701431][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 176.701676][ 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
[  176.702342][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  176.702588][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  176.702861][  T228] RDX: 0000000000000000 RSI: ffff88800d952c98 RDI: ffff888002b62de8
[  176.703151][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  176.703426][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  176.703701][  T228] R13: ffff88800d952128 R14: ffff88800d952008 R15: ffff88800d952000
[  176.703976][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  176.704304][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  176.704536][  T228] CR2: 000055ede47a447c CR3: 0000000008eca002 CR4: 0000000000772ef0
[  176.704812][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  176.705091][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  176.705371][  T228] PKRU: 55555554
[  176.705512][  T228] Call Trace:
[  176.705669][  T228]  <TASK>
[ 176.705765][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 176.705958][ T228] ? __warn (kernel/panic.c:748) 
[ 176.706113][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 176.706301][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 176.706501][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 176.706646][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 176.706834][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 176.707035][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 176.707241][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 176.707479][ 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) 
[ 176.707685][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 176.707877][ T228] register_netdevice (net/core/dev.c:11003) 
[ 176.708087][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 176.708292][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 176.708507][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 176.708786][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 176.709061][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 176.709307][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 176.709503][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 176.709696][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 176.709939][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 176.710183][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 176.710393][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 176.710599][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 176.710816][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 176.710997][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 176.711212][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 176.711430][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 176.711640][ T228] ksys_write (fs/read_write.c:731) 
[ 176.711799][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 176.712031][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 176.712247][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  176.712500][  T228] RIP: 0033:0x7fa2bf222b77
[ 176.712713][ 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
[  176.713423][  T228] RSP: 002b:00007ffe436e3088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  176.713729][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  176.714040][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  176.714349][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  176.714660][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  176.714971][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  181.422575][  T228] ------------[ cut here ]------------
| [ 181.422986][ 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) 
| [  181.424655][  T228] Modules linked in: netdevsim
| [  181.425599][  T228] Tainted: [W]=WARN
[  181.425782][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 181.426200][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.426510][ 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
[  181.427493][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  181.427791][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  181.428113][  T228] RDX: 0000000000000000 RSI: ffff88800a7fac98 RDI: ffff888002b62de8
[  181.428416][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  181.428844][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  181.429202][  T228] R13: ffff88800a7fa128 R14: ffff88800a7fa008 R15: ffff88800a7fa000
[  181.429519][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  181.429914][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  181.430202][  T228] CR2: 00007fa2bf1da890 CR3: 0000000008eca004 CR4: 0000000000772ef0
[  181.430525][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  181.430867][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  181.431207][  T228] PKRU: 55555554
[  181.431373][  T228] Call Trace:
[  181.431551][  T228]  <TASK>
[ 181.431671][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.431885][ T228] ? __warn (kernel/panic.c:748) 
[ 181.432067][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.432288][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 181.432506][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 181.432687][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 181.432905][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 181.433135][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.433355][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 181.433640][ 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) 
[ 181.433864][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 181.434084][ T228] register_netdevice (net/core/dev.c:11003) 
[ 181.434307][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 181.434550][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 181.434780][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 181.435083][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 181.435383][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 181.435701][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 181.435916][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 181.436154][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 181.436432][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 181.436726][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 181.436974][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 181.437207][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 181.437479][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 181.437679][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 181.437948][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 181.438254][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 181.438556][ T228] ksys_write (fs/read_write.c:731) 
[ 181.438794][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 181.439144][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 181.439359][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  181.439627][  T228] RIP: 0033:0x7fa2bf222b77
[ 181.439885][ 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
[  181.440859][  T228] RSP: 002b:00007ffe436e27e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  181.441177][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  181.441477][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  181.441922][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  181.442280][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  181.442611][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  183.266138][  T228] ------------[ cut here ]------------
| [ 183.266477][ 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) 
| [  183.266865][  T228] Modules linked in: netdevsim
| [  183.267447][  T228] Tainted: [W]=WARN
[  183.267592][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 183.267826][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 183.268076][ 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
[  183.268772][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  183.269007][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  183.269340][  T228] RDX: 0000000000000000 RSI: ffff88800e10ac98 RDI: ffff888002b62de8
[  183.269620][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  183.269954][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  183.270441][  T228] R13: ffff88800e10a128 R14: ffff88800e10a008 R15: ffff88800e10a000
[  183.270929][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[  183.271450][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  183.271823][  T228] CR2: 00007fe91c434a00 CR3: 0000000008eca002 CR4: 0000000000772ef0
[  183.272510][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  183.272969][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  183.273427][  T228] PKRU: 55555554
[  183.273663][  T228] Call Trace:
[  183.273912][  T228]  <TASK>
[ 183.274102][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 183.274433][ T228] ? __warn (kernel/panic.c:748) 
[ 183.274673][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 183.275015][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 183.275363][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 183.275626][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 183.275947][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 183.276301][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 183.276634][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 183.277110][ 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) 
[ 183.277438][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 183.277786][ T228] register_netdevice (net/core/dev.c:11003) 
[ 183.278122][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 183.278428][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 183.278752][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 183.279084][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 183.279375][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 183.279725][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 183.279927][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 183.280149][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 183.280395][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 183.280716][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 183.281029][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 183.281361][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 183.281693][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 183.281948][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 183.282284][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 183.282612][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 183.282946][ T228] ksys_write (fs/read_write.c:731) 
[ 183.283204][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 183.283546][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 183.283886][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  183.284310][  T228] RIP: 0033:0x7fa2bf222b77
[ 183.284625][ 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
[  183.285768][  T228] RSP: 002b:00007ffe436e27e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  183.286234][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  183.286563][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  183.286891][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  183.287200][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  183.287482][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  185.015666][  T228] ------------[ cut here ]------------
| [ 185.016118][ 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) 
| [  185.016583][  T228] Modules linked in: netdevsim
| [  185.017293][  T228] Tainted: [W]=WARN
[  185.017473][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 185.017755][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 185.018042][ 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
[  185.018841][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  185.019148][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  185.019498][  T228] RDX: 0000000000000000 RSI: ffff88800258ac98 RDI: ffff888002b62de8
[  185.019839][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  185.020188][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  185.020531][  T228] R13: ffff88800258a128 R14: ffff88800258a008 R15: ffff88800258a000
[  185.020868][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[  185.021265][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  185.021554][  T228] CR2: 00007fe91c2431a0 CR3: 0000000008eca004 CR4: 0000000000772ef0
[  185.022226][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  185.022565][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  185.022897][  T228] PKRU: 55555554
[  185.023081][  T228] Call Trace:
[  185.023253][  T228]  <TASK>
[ 185.023371][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 185.023604][ T228] ? __warn (kernel/panic.c:748) 
[ 185.023780][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 185.024008][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 185.024254][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 185.024432][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 185.024661][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 185.024894][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 185.025131][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 185.025409][ 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) 
[ 185.025665][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 185.025917][ T228] register_netdevice (net/core/dev.c:11003) 
[ 185.026156][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 185.026385][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 185.026640][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 185.026978][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 185.027298][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 185.027631][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 185.027898][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 185.028180][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 185.028522][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 185.028822][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 185.029110][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 185.029347][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 185.029648][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 185.029924][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 185.030172][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 185.030406][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 185.030700][ T228] ksys_write (fs/read_write.c:731) 
[ 185.030888][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 185.031157][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 185.031415][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  185.031750][  T228] RIP: 0033:0x7fa2bf222b77
[ 185.031980][ 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
[  185.032955][  T228] RSP: 002b:00007ffe436e27e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  185.033311][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  185.033641][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  185.034021][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  185.034384][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  185.034767][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  186.829379][  T228] ------------[ cut here ]------------
| [ 186.829776][ 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) 
| [  186.830242][  T228] Modules linked in: netdevsim
| [  186.830932][  T228] Tainted: [W]=WARN
[  186.831133][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 186.831398][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.831671][ 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
[  186.833016][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  186.833334][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  186.833707][  T228] RDX: 0000000000000000 RSI: ffff88800a6aac98 RDI: ffff888002b62de8
[  186.834043][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  186.834391][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  186.834732][  T228] R13: ffff88800a6aa128 R14: ffff88800a6aa008 R15: ffff88800a6aa000
[  186.835101][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  186.835489][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  186.835792][  T228] CR2: 00007fa2bf1da890 CR3: 0000000008eca001 CR4: 0000000000772ef0
[  186.836147][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  186.836510][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  186.836838][  T228] PKRU: 55555554
[  186.837006][  T228] Call Trace:
[  186.837185][  T228]  <TASK>
[ 186.837304][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.837524][ T228] ? __warn (kernel/panic.c:748) 
[ 186.837731][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.837952][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 186.838199][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 186.838368][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 186.838584][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 186.838812][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.839036][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 186.839331][ 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) 
[ 186.839554][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 186.839781][ T228] register_netdevice (net/core/dev.c:11003) 
[ 186.840010][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 186.840249][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 186.840485][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 186.840779][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 186.841099][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 186.841398][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 186.841667][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 186.841922][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 186.842234][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 186.842462][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 186.842697][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 186.842928][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 186.843203][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 186.843392][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 186.843628][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 186.843871][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 186.844122][ T228] ksys_write (fs/read_write.c:731) 
[ 186.844302][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 186.844541][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 186.844776][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  186.845063][  T228] RIP: 0033:0x7fa2bf222b77
[ 186.845283][ 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
[  186.846033][  T228] RSP: 002b:00007ffe436e27e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  186.846374][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  186.846686][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  186.846999][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  186.847337][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  186.847654][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  188.489325][  T228] ------------[ cut here ]------------
| [ 188.489696][ 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) 
| [  188.490141][  T228] Modules linked in: netdevsim
| [  188.490828][  T228] Tainted: [W]=WARN
[  188.490982][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 188.491285][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 188.491561][ 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
[  188.492251][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  188.492512][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  188.492808][  T228] RDX: 0000000000000000 RSI: ffff888004f02c98 RDI: ffff888002b62de8
[  188.493195][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  188.493554][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  188.493858][  T228] R13: ffff888004f02128 R14: ffff888004f02008 R15: ffff888004f02000
[  188.494225][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[  188.494636][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  188.495113][  T228] CR2: 000055ede496f258 CR3: 0000000008eca002 CR4: 0000000000772ef0
[  188.495441][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  188.495789][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  188.496109][  T228] PKRU: 55555554
[  188.496315][  T228] Call Trace:
[  188.496464][  T228]  <TASK>
[ 188.496618][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 188.496859][ T228] ? __warn (kernel/panic.c:748) 
[ 188.497046][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 188.497288][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 188.497549][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 188.497736][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 188.498013][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 188.498270][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 188.498476][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 188.498796][ 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) 
[ 188.499039][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 188.499296][ T228] register_netdevice (net/core/dev.c:11003) 
[ 188.499572][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 188.499781][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 188.500070][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 188.500330][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 188.500668][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 188.500925][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 188.501187][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 188.501437][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 188.501766][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 188.502076][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 188.502392][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 188.502620][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 188.502821][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 188.503031][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 188.503281][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 188.503556][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 188.503837][ T228] ksys_write (fs/read_write.c:731) 
[ 188.504045][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 188.504385][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 188.504632][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  188.504917][  T228] RIP: 0033:0x7fa2bf222b77
[ 188.505143][ 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
[  188.505918][  T228] RSP: 002b:00007ffe436e27e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  188.506298][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  188.506659][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  188.506992][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  188.507403][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  188.507762][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  190.139397][  T228] ------------[ cut here ]------------
| [ 190.139779][ 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) 
| [  190.140231][  T228] Modules linked in: netdevsim
| [  190.140891][  T228] Tainted: [W]=WARN
[  190.141073][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 190.141367][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.141640][ 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
[  190.142365][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  190.142641][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  190.142955][  T228] RDX: 0000000000000000 RSI: ffff88800d952c98 RDI: ffff888002b62de8
[  190.143281][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  190.143597][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  190.143909][  T228] R13: ffff88800d952128 R14: ffff88800d952008 R15: ffff88800d952000
[  190.144237][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  190.144604][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  190.144875][  T228] CR2: 00007f974ad36000 CR3: 0000000008eca002 CR4: 0000000000772ef0
[  190.145201][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  190.145687][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  190.146004][  T228] PKRU: 55555554
[  190.146187][  T228] Call Trace:
[  190.146357][  T228]  <TASK>
[ 190.146477][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.146699][ T228] ? __warn (kernel/panic.c:748) 
[ 190.146873][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.147102][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 190.147360][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 190.147533][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 190.147756][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 190.147990][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.148233][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 190.148507][ 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) 
[ 190.148739][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 190.148972][ T228] register_netdevice (net/core/dev.c:11003) 
[ 190.149224][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 190.149457][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 190.149700][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 190.149975][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 190.150312][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 190.150589][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 190.150809][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 190.151034][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 190.151321][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 190.151535][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 190.151755][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 190.151983][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 190.152225][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 190.152405][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 190.152640][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 190.152866][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 190.153097][ T228] ksys_write (fs/read_write.c:731) 
[ 190.153265][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 190.153488][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 190.153711][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  190.153974][  T228] RIP: 0033:0x7fa2bf222b77
[ 190.154201][ 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
[  190.154910][  T228] RSP: 002b:00007ffe436e27e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  190.155237][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  190.155569][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  190.155882][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  190.156201][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  190.156525][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  191.829326][  T228] ------------[ cut here ]------------
| [ 191.829674][ 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) 
| [  191.830087][  T228] Modules linked in: netdevsim
| [  191.830662][  T228] Tainted: [W]=WARN
[  191.830823][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 191.831072][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.831402][ 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
[  191.832269][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  191.832538][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  191.832840][  T228] RDX: 0000000000000000 RSI: ffff88800a7fac98 RDI: ffff888002b62de8
[  191.833121][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  191.833427][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  191.833744][  T228] R13: ffff88800a7fa128 R14: ffff88800a7fa008 R15: ffff88800a7fa000
[  191.834040][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  191.834615][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  191.834911][  T228] CR2: 00007f1bb7959a30 CR3: 0000000008eca004 CR4: 0000000000772ef0
[  191.835223][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  191.835547][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  191.835845][  T228] PKRU: 55555554
[  191.835986][  T228] Call Trace:
[  191.836140][  T228]  <TASK>
[ 191.836240][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.836459][ T228] ? __warn (kernel/panic.c:748) 
[ 191.836606][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.836849][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 191.837104][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 191.837253][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 191.837442][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 191.837646][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.837863][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 191.838114][ 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) 
[ 191.838307][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 191.838503][ T228] register_netdevice (net/core/dev.c:11003) 
[ 191.838697][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 191.838910][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 191.839133][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 191.839381][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 191.839637][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 191.839921][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 191.840128][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 191.840334][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 191.840581][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 191.840823][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 191.841016][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 191.841246][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 191.841446][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 191.841605][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 191.841822][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 191.842024][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 191.842253][ T228] ksys_write (fs/read_write.c:731) 
[ 191.842397][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 191.842600][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 191.842819][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  191.843074][  T228] RIP: 0033:0x7fa2bf222b77
[ 191.843291][ 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
[  191.844006][  T228] RSP: 002b:00007ffe436e27e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  191.844341][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  191.844626][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  191.844982][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  191.845296][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  191.845596][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  193.534501][  T228] ------------[ cut here ]------------
| [ 193.534882][ 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) 
| [  193.535400][  T228] Modules linked in: netdevsim
| [  193.536114][  T228] Tainted: [W]=WARN
[  193.536286][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 193.536580][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 193.536874][ 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
[  193.537706][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  193.537994][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  193.538350][  T228] RDX: 0000000000000000 RSI: ffff88800e10ac98 RDI: ffff888002b62de8
[  193.538690][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  193.539222][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  193.539539][  T228] R13: ffff88800e10a128 R14: ffff88800e10a008 R15: ffff88800e10a000
[  193.539875][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  193.540270][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  193.540543][  T228] CR2: 000055ede4828408 CR3: 0000000008eca006 CR4: 0000000000772ef0
[  193.540883][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  193.541235][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  193.541577][  T228] PKRU: 55555554
[  193.541752][  T228] Call Trace:
[  193.541929][  T228]  <TASK>
[ 193.542063][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 193.542304][ T228] ? __warn (kernel/panic.c:748) 
[ 193.542484][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 193.542715][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 193.542953][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 193.543135][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 193.543369][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 193.543615][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 193.543855][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 193.544157][ 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) 
[ 193.544391][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 193.544626][ T228] register_netdevice (net/core/dev.c:11003) 
[ 193.544871][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 193.545121][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 193.545374][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 193.545680][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 193.545985][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 193.546274][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 193.546502][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 193.546741][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 193.547032][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 193.547269][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 193.547505][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 193.547738][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 193.547974][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 193.548168][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 193.548393][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 193.548626][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 193.548861][ T228] ksys_write (fs/read_write.c:731) 
[ 193.549026][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 193.549264][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 193.549493][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  193.549773][  T228] RIP: 0033:0x7fa2bf222b77
[ 193.550002][ 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
[  193.550780][  T228] RSP: 002b:00007ffe436e27e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  193.551128][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  193.551525][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  193.551850][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  193.552183][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  193.552508][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  195.209441][  T228] ------------[ cut here ]------------
| [ 195.210032][ 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) 
| [  195.210723][  T228] Modules linked in: netdevsim
| [  195.211761][  T228] Tainted: [W]=WARN
[  195.212227][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 195.212641][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 195.213094][ 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
[  195.214316][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  195.214756][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  195.215266][  T228] RDX: 0000000000000000 RSI: ffff88800258ac98 RDI: ffff888002b62de8
[  195.215782][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  195.216296][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  195.216814][  T228] R13: ffff88800258a128 R14: ffff88800258a008 R15: ffff88800258a000
[  195.217354][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  195.217928][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  195.218369][  T228] CR2: 000055ede498bfe8 CR3: 0000000008eca006 CR4: 0000000000772ef0
[  195.218865][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  195.219388][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  195.219893][  T228] PKRU: 55555554
[  195.220169][  T228] Call Trace:
[  195.220420][  T228]  <TASK>
[ 195.220623][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 195.220961][ T228] ? __warn (kernel/panic.c:748) 
[ 195.221286][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 195.221630][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 195.221983][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 195.222258][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 195.222586][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 195.222934][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 195.223297][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 195.223713][ 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) 
[ 195.224100][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 195.224438][ T228] register_netdevice (net/core/dev.c:11003) 
[ 195.224797][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 195.225168][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 195.225575][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 195.226000][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 195.226475][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 195.226899][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 195.227254][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 195.227606][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 195.228025][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 195.228386][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 195.228788][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 195.229142][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 195.229468][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 195.229722][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 195.230072][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 195.230409][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 195.230734][ T228] ksys_write (fs/read_write.c:731) 
[ 195.230986][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 195.231353][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 195.231681][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  195.232103][  T228] RIP: 0033:0x7fa2bf222b77
[ 195.232437][ 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
[  195.233612][  T228] RSP: 002b:00007ffe436e27e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  195.234168][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  195.234663][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  195.235175][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  195.235670][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002
[  195.236187][  T228] R13: 00007fa2bf2de760 R14: 0000000000000002 R15: 00007fa2bf2d99c0
| [  196.943244][  T228] ------------[ cut here ]------------
| [ 196.943609][ 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) 
| [  196.944126][  T228] Modules linked in: netdevsim
| [  196.944726][  T228] Tainted: [W]=WARN
[  196.944875][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 196.945168][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 196.945422][ 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
[  196.946128][  T228] RSP: 0018:ffffc90000a37910 EFLAGS: 00010246
[  196.946380][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  196.946670][  T228] RDX: 0000000000000000 RSI: ffff88800a6aac98 RDI: ffff888002b62de8
[  196.946966][  T228] RBP: ffffffffb7523440 R08: 0000000000000000 R09: fffffbfff6a7d83c
[  196.947267][  T228] R10: ffffffffb53ec1e7 R11: ffff888002b62300 R12: 0000000000000000
[  196.947694][  T228] R13: ffff88800a6aa128 R14: ffff88800a6aa008 R15: ffff88800a6aa000
[  196.947985][  T228] FS:  00007fa2bf0e1740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[  196.948427][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  196.948675][  T228] CR2: 00007fa2bf1da890 CR3: 0000000008eca002 CR4: 0000000000772ef0
[  196.948991][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  196.949372][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  196.949672][  T228] PKRU: 55555554
[  196.949824][  T228] Call Trace:
[  196.949974][  T228]  <TASK>
[ 196.950196][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 196.950407][ T228] ? __warn (kernel/panic.c:748) 
[ 196.950562][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 196.950769][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 196.950994][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 196.951248][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 196.951456][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 196.951680][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 196.951887][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 196.952223][ 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) 
[ 196.952432][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 196.952635][ T228] register_netdevice (net/core/dev.c:11003) 
[ 196.952845][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 196.953078][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 196.953293][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 196.953557][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 196.953824][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 196.954158][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 196.954372][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 196.954598][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 196.954866][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 196.955085][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 196.955296][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 196.955516][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 196.955737][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 196.955902][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 196.956126][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 196.956350][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 196.956567][ T228] ksys_write (fs/read_write.c:731) 
[ 196.956724][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 196.956946][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 196.957167][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  196.957422][  T228] RIP: 0033:0x7fa2bf222b77
[ 196.957630][ 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
[  196.958351][  T228] RSP: 002b:00007ffe436e27e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  196.958658][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa2bf222b77
[  196.958966][  T228] RDX: 0000000000000002 RSI: 000055ede498d130 RDI: 0000000000000001
[  196.959312][  T228] RBP: 000055ede498d130 R08: 0000000000000000 R09: 00007fa2bf2954e0
[  196.959622][  T228] R10: 00007fa2bf2953e0 R11: 0000000000000246 R12: 0000000000000002


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