======================================
| 0
| xx__-> [   13.244543][  T228] ------------[ cut here ]------------
| [ 13.245561][ 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) 
| [   13.246300][  T228] Modules linked in: netdevsim
[   13.247165][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 13.247624][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.248066][ 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
[   13.249245][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[   13.249624][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   13.249958][  T228] RDX: 0000000000000000 RSI: ffff8880090eac98 RDI: ffff8880094a8b28
[   13.250326][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[   13.250662][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[   13.250990][  T228] R13: ffff8880090ea128 R14: ffff8880090ea008 R15: ffff8880090ea000
[   13.251331][  T228] FS:  00007f00697e0740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   13.251702][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.252014][  T228] CR2: 0000562071b7c47c CR3: 000000000a3c6001 CR4: 0000000000772ef0
[   13.252366][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   13.252696][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   13.253044][  T228] PKRU: 55555554
[   13.253252][  T228] Call Trace:
[   13.253430][  T228]  <TASK>
[ 13.253558][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.253797][ T228] ? __warn (kernel/panic.c:748) 
[ 13.253995][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.254245][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 13.254481][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 13.254660][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 13.254888][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 13.255137][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.255389][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 13.255673][ 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) 
[ 13.255911][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 13.256157][ T228] register_netdevice (net/core/dev.c:11003) 
[ 13.256431][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 13.256669][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 13.256918][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 13.257236][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 13.257543][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 13.257835][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 13.258073][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 13.258326][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 13.258641][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 13.258878][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 13.259127][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 13.259464][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 13.259829][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 13.260100][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 13.260371][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 13.260607][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 13.260866][ T228] ksys_write (fs/read_write.c:731) 
[ 13.261052][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 13.261325][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 13.261655][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   13.261963][  T228] RIP: 0033:0x7f0069921b77
[ 13.262236][ 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
[   13.263071][  T228] RSP: 002b:00007ffd2dbd3e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   13.263527][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[   13.264038][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[   13.264573][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[   13.265095][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[   13.265644][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  156.865261][  T228] ------------[ cut here ]------------
| [ 156.865556][ 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) 
| [  156.865978][  T228] Modules linked in: netdevsim
| [  156.866637][  T228] Tainted: [W]=WARN
[  156.866815][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 156.867081][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 156.867372][ 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
[  156.868093][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  156.868413][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  156.868746][  T228] RDX: 0000000000000000 RSI: ffff88800a0dac98 RDI: ffff8880094a8b28
[  156.869074][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  156.869410][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  156.869749][  T228] R13: ffff88800a0da128 R14: ffff88800a0da008 R15: ffff88800a0da000
[  156.870092][  T228] FS:  00007f00697e0740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  156.870521][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  156.870809][  T228] CR2: 0000562071d65130 CR3: 000000000a3c6004 CR4: 0000000000772ef0
[  156.871160][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  156.871508][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  156.871836][  T228] PKRU: 55555554
[  156.872015][  T228] Call Trace:
[  156.872184][  T228]  <TASK>
[ 156.872336][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 156.872570][ T228] ? __warn (kernel/panic.c:748) 
[ 156.872739][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 156.872970][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 156.873217][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 156.873385][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 156.873613][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 156.873859][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 156.874100][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 156.874396][ 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) 
[ 156.874630][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 156.874851][ T228] register_netdevice (net/core/dev.c:11003) 
[ 156.875088][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 156.875344][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 156.875597][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 156.875885][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 156.876175][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 156.876466][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 156.876705][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 156.876932][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 156.877222][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 156.877441][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 156.877661][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 156.877882][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 156.878113][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 156.878330][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 156.878557][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 156.878798][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 156.879026][ T228] ksys_write (fs/read_write.c:731) 
[ 156.879214][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 156.879452][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 156.879689][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  156.879964][  T228] RIP: 0033:0x7f0069921b77
[ 156.880190][ 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
[  156.880928][  T228] RSP: 002b:00007ffd2dbd2af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  156.881281][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  156.881605][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  156.881919][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  156.882241][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  156.882570][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  158.504411][  T228] ------------[ cut here ]------------
| [ 158.504723][ 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) 
| [  158.505117][  T228] Modules linked in: netdevsim
| [  158.505869][  T228] Tainted: [W]=WARN
[  158.506024][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 158.506297][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.506578][ 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
[  158.507306][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  158.507583][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  158.507885][  T228] RDX: 0000000000000000 RSI: ffff88800a052c98 RDI: ffff8880094a8b28
[  158.508184][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  158.508507][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  158.508833][  T228] R13: ffff88800a052128 R14: ffff88800a052008 R15: ffff88800a052000
[  158.509151][  T228] FS:  00007f00697e0740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  158.509525][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  158.509805][  T228] CR2: 0000562071b7c47c CR3: 000000000a3c6006 CR4: 0000000000772ef0
[  158.510119][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  158.510451][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  158.510783][  T228] PKRU: 55555554
[  158.510950][  T228] Call Trace:
[  158.511129][  T228]  <TASK>
[ 158.511266][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.511491][ T228] ? __warn (kernel/panic.c:748) 
[ 158.511708][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.511928][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 158.512158][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 158.512343][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 158.512562][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 158.512806][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.513035][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 158.513319][ 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) 
[ 158.513546][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 158.513783][ T228] register_netdevice (net/core/dev.c:11003) 
[ 158.514006][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 158.514242][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 158.514479][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 158.514765][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 158.515059][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 158.515354][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 158.515588][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 158.515821][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 158.516103][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 158.516333][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 158.516556][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 158.516795][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 158.517028][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 158.517222][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 158.517445][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 158.517741][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 158.518013][ T228] ksys_write (fs/read_write.c:731) 
[ 158.518193][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 158.518474][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 158.518751][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  158.519056][  T228] RIP: 0033:0x7f0069921b77
[ 158.519328][ 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
[  158.520053][  T228] RSP: 002b:00007ffd2dbd2af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  158.520374][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  158.520737][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  158.521039][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  158.521374][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  158.521706][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  160.039589][  T228] ------------[ cut here ]------------
| [ 160.039958][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  160.040622][  T228] Modules linked in: netdevsim
| [  160.041619][  T228] Tainted: [W]=WARN
[  160.041857][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 160.042269][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.042662][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  160.043370][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  160.043643][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  160.043921][  T228] RDX: 0000000000000000 RSI: ffff888009b7ac98 RDI: ffff8880094a8b28
[  160.044284][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  160.044574][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  160.044953][  T228] R13: ffff888009b7a128 R14: ffff888009b7a008 R15: ffff888009b7a000
[  160.045246][  T228] FS:  00007f00697e0740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  160.045638][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  160.045927][  T228] CR2: 00007f73023e726f CR3: 000000000a3c6004 CR4: 0000000000772ef0
[  160.046278][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  160.046641][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  160.046921][  T228] PKRU: 55555554
[  160.047065][  T228] Call Trace:
[  160.047282][  T228]  <TASK>
[ 160.047382][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.047587][ T228] ? __warn (kernel/panic.c:748) 
[ 160.047734][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.047998][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 160.048198][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 160.048358][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 160.048576][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 160.048787][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.048988][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 160.049243][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 160.049438][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 160.049643][ T228] register_netdevice (net/core/dev.c:11003) 
[ 160.049839][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 160.050035][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 160.050250][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 160.050494][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 160.050767][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 160.051014][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 160.051229][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 160.051427][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 160.051681][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 160.051873][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 160.052059][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 160.052262][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 160.052457][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 160.052628][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 160.052819][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 160.053025][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 160.053234][ T228] ksys_write (fs/read_write.c:731) 
[ 160.053381][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 160.053612][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 160.053915][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  160.054151][  T228] RIP: 0033:0x7f0069921b77
[ 160.054372][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  160.055109][  T228] RSP: 002b:00007ffd2dbd2af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  160.055464][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  160.055771][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  160.056105][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  160.056413][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  160.056765][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  161.654151][  T228] ------------[ cut here ]------------
| [ 161.654540][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  161.654947][  T228] Modules linked in: netdevsim
| [  161.655587][  T228] Tainted: [W]=WARN
[  161.655753][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 161.656002][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.656292][ 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
[  161.657034][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  161.657315][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  161.657622][  T228] RDX: 0000000000000000 RSI: ffff8880025fac98 RDI: ffff8880094a8b28
[  161.657922][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  161.658229][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  161.658535][  T228] R13: ffff8880025fa128 R14: ffff8880025fa008 R15: ffff8880025fa000
[  161.658832][  T228] FS:  00007f00697e0740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  161.659179][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  161.659439][  T228] CR2: 0000562071bae018 CR3: 000000000a3c6004 CR4: 0000000000772ef0
[  161.659738][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  161.660031][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  161.660365][  T228] PKRU: 55555554
[  161.660520][  T228] Call Trace:
[  161.660678][  T228]  <TASK>
[ 161.660787][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.660989][ T228] ? __warn (kernel/panic.c:748) 
[ 161.661181][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.661414][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 161.661631][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 161.661787][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 161.662000][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 161.662235][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.662447][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 161.662706][ 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) 
[ 161.662916][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 161.663123][ T228] register_netdevice (net/core/dev.c:11003) 
[ 161.663336][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 161.663553][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 161.663772][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 161.664031][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 161.664315][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 161.664577][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.664780][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 161.664994][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 161.665259][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.665462][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 161.665661][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 161.665867][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 161.666074][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 161.666244][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 161.666475][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 161.666687][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 161.666896][ T228] ksys_write (fs/read_write.c:731) 
[ 161.667052][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 161.667279][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 161.667484][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  161.667738][  T228] RIP: 0033:0x7f0069921b77
[ 161.667953][ 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
[  161.668654][  T228] RSP: 002b:00007ffd2dbd2af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  161.668962][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  161.669281][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  161.669592][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  161.669906][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  161.670212][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  163.238902][  T228] ------------[ cut here ]------------
| [ 163.239172][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  163.239648][  T228] Modules linked in: netdevsim
| [  163.240310][  T228] Tainted: [W]=WARN
[  163.240474][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 163.240738][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.241016][ 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
[  163.241746][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  163.242003][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  163.242317][  T228] RDX: 0000000000000000 RSI: ffff88800e612c98 RDI: ffff8880094a8b28
[  163.242628][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  163.242934][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  163.243257][  T228] R13: ffff88800e612128 R14: ffff88800e612008 R15: ffff88800e612000
[  163.243555][  T228] FS:  00007f00697e0740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  163.243905][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  163.244179][  T228] CR2: 00007fd0d1de7000 CR3: 000000000a3c6002 CR4: 0000000000772ef0
[  163.244524][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  163.244826][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  163.245152][  T228] PKRU: 55555554
[  163.245324][  T228] Call Trace:
[  163.245483][  T228]  <TASK>
[ 163.245593][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.245806][ T228] ? __warn (kernel/panic.c:748) 
[ 163.245965][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.246183][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 163.246410][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 163.246570][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 163.246772][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 163.246994][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.247235][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 163.247494][ 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) 
[ 163.247726][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 163.247968][ T228] register_netdevice (net/core/dev.c:11003) 
[ 163.248178][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 163.248443][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 163.248675][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 163.248936][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 163.249247][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 163.249532][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.249741][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 163.249963][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 163.250269][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.250486][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 163.250713][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 163.250941][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 163.251180][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 163.251374][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 163.251606][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 163.251837][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 163.252075][ T228] ksys_write (fs/read_write.c:731) 
[ 163.252252][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 163.252477][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 163.252699][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  163.252959][  T228] RIP: 0033:0x7f0069921b77
[ 163.253171][ 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
[  163.253906][  T228] RSP: 002b:00007ffd2dbd2af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  163.254243][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  163.254573][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  163.254874][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  163.255190][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  163.255506][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  164.852134][  T228] ------------[ cut here ]------------
| [ 164.853149][ 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) 
| [  164.853655][  T228] Modules linked in: netdevsim
| [  164.854385][  T228] Tainted: [W]=WARN
[  164.854538][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 164.854791][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.855149][ 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
[  164.856323][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  164.856688][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  164.857126][  T228] RDX: 0000000000000000 RSI: ffff8880090eac98 RDI: ffff8880094a8b28
[  164.857805][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  164.858543][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  164.859268][  T228] R13: ffff8880090ea128 R14: ffff8880090ea008 R15: ffff8880090ea000
[  164.859699][  T228] FS:  00007f00697e0740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  164.860481][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  164.860864][  T228] CR2: 0000562071bae018 CR3: 000000000a3c6004 CR4: 0000000000772ef0
[  164.861568][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  164.862048][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  164.862678][  T228] PKRU: 55555554
[  164.862960][  T228] Call Trace:
[  164.863391][  T228]  <TASK>
[ 164.863579][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.863929][ T228] ? __warn (kernel/panic.c:748) 
[ 164.864195][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.864659][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 164.864973][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 164.865533][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 164.865883][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 164.866491][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.866869][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 164.867625][ 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) 
[ 164.867970][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 164.868582][ T228] register_netdevice (net/core/dev.c:11003) 
[ 164.868918][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 164.869451][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 164.869810][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 164.870324][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 164.870751][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 164.871184][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 164.871533][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 164.871882][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 164.872324][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 164.872670][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 164.873003][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 164.873354][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 164.873697][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 164.873954][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 164.874316][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 164.874653][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 164.874991][ T228] ksys_write (fs/read_write.c:731) 
[ 164.875262][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 164.875607][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 164.875936][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  164.876362][  T228] RIP: 0033:0x7f0069921b77
[ 164.876694][ 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
[  164.877830][  T228] RSP: 002b:00007ffd2dbd2af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  164.878331][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  164.878809][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  164.879299][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  164.879773][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  164.881235][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  166.449294][  T228] ------------[ cut here ]------------
| [ 166.449534][ 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) 
| [  166.449923][  T228] Modules linked in: netdevsim
| [  166.450605][  T228] Tainted: [W]=WARN
[  166.450754][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 166.450989][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.451345][ 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
[  166.452002][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  166.452325][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  166.452608][  T228] RDX: 0000000000000000 RSI: ffff88800a0dac98 RDI: ffff8880094a8b28
[  166.452888][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  166.453174][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  166.453577][  T228] R13: ffff88800a0da128 R14: ffff88800a0da008 R15: ffff88800a0da000
[  166.453870][  T228] FS:  00007f00697e0740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  166.454197][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  166.454532][  T228] CR2: 0000562071b7c47c CR3: 000000000a3c6004 CR4: 0000000000772ef0
[  166.454813][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  166.455095][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  166.455457][  T228] PKRU: 55555554
[  166.455603][  T228] Call Trace:
[  166.455748][  T228]  <TASK>
[ 166.455853][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.456053][ T228] ? __warn (kernel/panic.c:748) 
[ 166.456284][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.456474][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 166.456684][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 166.456829][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 166.457019][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 166.457322][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.457533][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 166.457773][ 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) 
[ 166.457969][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 166.458174][ T228] register_netdevice (net/core/dev.c:11003) 
[ 166.458465][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 166.458678][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 166.458891][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 166.459138][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 166.459497][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 166.459753][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.459954][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 166.460162][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 166.460528][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.460726][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 166.460927][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 166.461139][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 166.461485][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 166.461643][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 166.461840][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 166.462051][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 166.462449][ T228] ksys_write (fs/read_write.c:731) 
[ 166.462608][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 166.462816][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 166.463016][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  166.463437][  T228] RIP: 0033:0x7f0069921b77
[ 166.463653][ 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
[  166.464381][  T228] RSP: 002b:00007ffd2dbd2af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  166.464691][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  166.465001][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  166.465313][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  166.465619][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  166.465921][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  168.058467][  T228] ------------[ cut here ]------------
| [ 168.058767][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  168.059176][  T228] Modules linked in: netdevsim
| [  168.059943][  T228] Tainted: [W]=WARN
[  168.060098][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 168.060379][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.060638][ 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
[  168.061383][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  168.061658][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  168.061966][  T228] RDX: 0000000000000000 RSI: ffff88800a052c98 RDI: ffff8880094a8b28
[  168.062300][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  168.062612][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  168.062925][  T228] R13: ffff88800a052128 R14: ffff88800a052008 R15: ffff88800a052000
[  168.063256][  T228] FS:  00007f00697e0740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  168.063622][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  168.063883][  T228] CR2: 0000562071d3bde8 CR3: 000000000a3c6005 CR4: 0000000000772ef0
[  168.064198][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  168.064546][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  168.064853][  T228] PKRU: 55555554
[  168.065021][  T228] Call Trace:
[  168.065187][  T228]  <TASK>
[ 168.065337][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.065561][ T228] ? __warn (kernel/panic.c:748) 
[ 168.065731][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.065953][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 168.066182][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 168.066378][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 168.066596][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 168.066823][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 168.067051][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 168.067343][ 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) 
[ 168.067569][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 168.067791][ T228] register_netdevice (net/core/dev.c:11003) 
[ 168.068024][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 168.068286][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 168.068536][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 168.068819][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 168.069113][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 168.069397][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 168.069618][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 168.069842][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 168.070117][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 168.070356][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 168.070575][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 168.070794][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 168.071019][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 168.071225][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 168.071446][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 168.071674][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 168.071899][ T228] ksys_write (fs/read_write.c:731) 
[ 168.072070][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 168.072305][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 168.072526][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  168.072788][  T228] RIP: 0033:0x7f0069921b77
[ 168.073018][ 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
[  168.073759][  T228] RSP: 002b:00007ffd2dbd2af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  168.074083][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  168.074414][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  168.074732][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  168.075043][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  168.075369][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  169.588344][  T228] ------------[ cut here ]------------
| [ 169.588644][ 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) 
| [  169.589061][  T228] Modules linked in: netdevsim
| [  169.589706][  T228] Tainted: [W]=WARN
[  169.589866][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 169.590121][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.591274][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  169.592336][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  169.592711][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  169.593091][  T228] RDX: 0000000000000000 RSI: ffff888009b7ac98 RDI: ffff8880094a8b28
[  169.593487][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  169.593940][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  169.594546][  T228] R13: ffff888009b7a128 R14: ffff888009b7a008 R15: ffff888009b7a000
[  169.595069][  T228] FS:  00007f00697e0740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  169.595705][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  169.596137][  T228] CR2: 0000562071b7c47c CR3: 000000000a3c6005 CR4: 0000000000772ef0
[  169.596646][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  169.597010][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  169.597387][  T228] PKRU: 55555554
[  169.597599][  T228] Call Trace:
[  169.597774][  T228]  <TASK>
[ 169.597904][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.598172][ T228] ? __warn (kernel/panic.c:748) 
[ 169.598398][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.598658][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 169.598912][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 169.599123][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 169.599412][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 169.599707][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.600007][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 169.600461][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 169.600822][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 169.601184][ T228] register_netdevice (net/core/dev.c:11003) 
[ 169.601547][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 169.601908][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 169.602181][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 169.602522][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 169.602848][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 169.603152][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 169.603428][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 169.603705][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 169.604018][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 169.604248][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 169.604460][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 169.604713][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 169.604940][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 169.605107][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 169.605351][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 169.605591][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 169.605819][ T228] ksys_write (fs/read_write.c:731) 
[ 169.605981][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 169.606193][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 169.606428][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  169.606730][  T228] RIP: 0033:0x7f0069921b77
[ 169.606945][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  169.607690][  T228] RSP: 002b:00007ffd2dbd2af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  169.608002][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  169.608380][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  169.608784][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  169.609131][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  169.609457][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  171.174964][  T228] ------------[ cut here ]------------
| [ 171.175321][ 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) 
| [  171.175888][  T228] Modules linked in: netdevsim
| [  171.176785][  T228] Tainted: [W]=WARN
[  171.177015][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 171.177401][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.177782][ 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
[  171.178818][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  171.179188][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  171.179632][  T228] RDX: 0000000000000000 RSI: ffff8880025fac98 RDI: ffff8880094a8b28
[  171.180079][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  171.180518][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  171.180927][  T228] R13: ffff8880025fa128 R14: ffff8880025fa008 R15: ffff8880025fa000
[  171.181385][  T228] FS:  00007f00697e0740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  171.181902][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  171.182281][  T228] CR2: 0000562071b7c47c CR3: 000000000a3c6002 CR4: 0000000000772ef0
[  171.182725][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  171.183163][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  171.183612][  T228] PKRU: 55555554
[  171.183840][  T228] Call Trace:
[  171.184067][  T228]  <TASK>
[ 171.184241][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.184549][ T228] ? __warn (kernel/panic.c:748) 
[ 171.184779][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.185080][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 171.185397][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 171.185615][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 171.185902][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 171.186234][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.186554][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 171.186938][ 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) 
[ 171.187264][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 171.187571][ T228] register_netdevice (net/core/dev.c:11003) 
[ 171.187890][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 171.188223][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 171.188554][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 171.188951][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 171.189374][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 171.189771][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 171.190072][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 171.190404][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 171.190791][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 171.191108][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 171.191434][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 171.191735][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 171.192050][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 171.192311][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 171.192624][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 171.192946][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 171.193261][ T228] ksys_write (fs/read_write.c:731) 
[ 171.193480][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 171.193800][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 171.194102][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  171.194472][  T228] RIP: 0033:0x7f0069921b77
[ 171.194759][ 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
[  171.195747][  T228] RSP: 002b:00007ffd2dbd2af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  171.196284][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  171.196706][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  171.197119][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  171.197553][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  171.197975][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  175.730481][  T228] ------------[ cut here ]------------
| [ 175.730811][ 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) 
| [  175.731316][  T228] Modules linked in: netdevsim
| [  175.731926][  T228] Tainted: [W]=WARN
[  175.732073][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 175.732339][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 175.732601][ 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
[  175.734566][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  175.734817][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  175.735097][  T228] RDX: 0000000000000000 RSI: ffff8880090eac98 RDI: ffff8880094a8b28
[  175.735376][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  175.735658][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  175.735960][  T228] R13: ffff8880090ea128 R14: ffff8880090ea008 R15: ffff8880090ea000
[  175.736267][  T228] FS:  00007f00697e0740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  175.736615][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  175.736863][  T228] CR2: 00007f00698d9890 CR3: 000000000a3c6005 CR4: 0000000000772ef0
[  175.737163][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  175.737470][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  175.737767][  T228] PKRU: 55555554
[  175.737919][  T228] Call Trace:
[  175.738073][  T228]  <TASK>
[ 175.738175][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 175.738373][ T228] ? __warn (kernel/panic.c:748) 
[ 175.738517][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 175.738709][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 175.738904][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 175.739052][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 175.739253][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 175.739458][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 175.739655][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 175.739892][ 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) 
[ 175.740087][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 175.740283][ T228] register_netdevice (net/core/dev.c:11003) 
[ 175.740477][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 175.740678][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 175.740885][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 175.741173][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 175.741465][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 175.741711][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 175.741899][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 175.742103][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 175.742352][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 175.742537][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 175.742725][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 175.742916][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 175.743112][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 175.743285][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 175.743478][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 175.743676][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 175.743873][ T228] ksys_write (fs/read_write.c:731) 
[ 175.744016][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 175.744230][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 175.744424][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  175.744655][  T228] RIP: 0033:0x7f0069921b77
[ 175.744850][ 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
[  175.745515][  T228] RSP: 002b:00007ffd2dbd2258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  175.745905][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  175.746189][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  175.746488][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  175.746774][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  175.747054][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  177.526923][  T228] ------------[ cut here ]------------
| [ 177.527365][ 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) 
| [  177.527768][  T228] Modules linked in: netdevsim
| [  177.528381][  T228] Tainted: [W]=WARN
[  177.530061][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 177.530366][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.530661][ 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
[  177.531456][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  177.531710][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  177.532013][  T228] RDX: 0000000000000000 RSI: ffff88800e612c98 RDI: ffff8880094a8b28
[  177.532317][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  177.532611][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  177.532915][  T228] R13: ffff88800e612128 R14: ffff88800e612008 R15: ffff88800e612000
[  177.533220][  T228] FS:  00007f00697e0740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  177.533565][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  177.533820][  T228] CR2: 00007f730248aa00 CR3: 000000000a3c6004 CR4: 0000000000772ef0
[  177.534121][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  177.534429][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  177.534725][  T228] PKRU: 55555554
[  177.534886][  T228] Call Trace:
[  177.535160][  T228]  <TASK>
[ 177.535289][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.535499][ T228] ? __warn (kernel/panic.c:748) 
[ 177.535665][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.535879][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 177.536092][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 177.536264][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 177.536467][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 177.536686][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.536902][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 177.537167][ 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) 
[ 177.537385][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 177.537596][ T228] register_netdevice (net/core/dev.c:11003) 
[ 177.537807][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 177.538023][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 177.538253][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 177.538523][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 177.538801][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 177.539066][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 177.539282][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 177.539499][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 177.539757][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 177.539966][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 177.540174][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 177.540391][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 177.540602][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 177.540770][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 177.540985][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 177.541224][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 177.541442][ T228] ksys_write (fs/read_write.c:731) 
[ 177.541605][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 177.541923][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 177.542273][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  177.542681][  T228] RIP: 0033:0x7f0069921b77
[ 177.543014][ 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
[  177.543971][  T228] RSP: 002b:00007ffd2dbd2258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  177.544451][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  177.544941][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  177.545388][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  177.545872][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  177.546311][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  179.184664][  T228] ------------[ cut here ]------------
| [ 179.185008][ 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) 
| [  179.185477][  T228] Modules linked in: netdevsim
| [  179.186192][  T228] Tainted: [W]=WARN
[  179.186393][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 179.186679][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.186940][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  179.188032][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  179.188465][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  179.188763][  T228] RDX: 0000000000000000 RSI: ffff88800a0dac98 RDI: ffff8880094a8b28
[  179.189068][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  179.189403][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  179.189696][  T228] R13: ffff88800a0da128 R14: ffff88800a0da008 R15: ffff88800a0da000
[  179.189987][  T228] FS:  00007f00697e0740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  179.190423][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  179.190675][  T228] CR2: 0000562071c0a088 CR3: 000000000a3c6004 CR4: 0000000000772ef0
[  179.190967][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  179.191683][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  179.192171][  T228] PKRU: 55555554
[  179.192445][  T228] Call Trace:
[  179.192673][  T228]  <TASK>
[ 179.192797][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.193016][ T228] ? __warn (kernel/panic.c:748) 
[ 179.193244][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.193470][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 179.193697][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 179.193866][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 179.194116][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 179.194395][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.194628][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 179.194902][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 179.195140][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 179.195382][ T228] register_netdevice (net/core/dev.c:11003) 
[ 179.195603][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 179.195835][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 179.196086][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 179.196384][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 179.196677][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 179.196956][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 179.197230][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 179.197457][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 179.197720][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 179.197922][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 179.198196][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 179.198450][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 179.198677][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 179.198844][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 179.199043][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 179.199269][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 179.199484][ T228] ksys_write (fs/read_write.c:731) 
[ 179.199645][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 179.199858][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 179.200064][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  179.200320][  T228] RIP: 0033:0x7f0069921b77
[ 179.200527][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  179.201255][  T228] RSP: 002b:00007ffd2dbd2258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  179.201551][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  179.201853][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  179.202173][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  179.202477][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  179.202769][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  180.810811][  T228] ------------[ cut here ]------------
| [ 180.811180][ 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) 
| [  180.811659][  T228] Modules linked in: netdevsim
| [  180.812389][  T228] Tainted: [W]=WARN
[  180.812536][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 180.812773][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 180.813019][ 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
[  180.813723][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  180.814030][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  180.814325][  T228] RDX: 0000000000000000 RSI: ffff888009b7ac98 RDI: ffff8880094a8b28
[  180.814613][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  180.814892][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  180.815170][  T228] R13: ffff888009b7a128 R14: ffff888009b7a008 R15: ffff888009b7a000
[  180.815461][  T228] FS:  00007f00697e0740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  180.815809][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  180.816220][  T228] CR2: 00007f00698d9890 CR3: 000000000a3c6006 CR4: 0000000000772ef0
[  180.816558][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  180.816851][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  180.817131][  T228] PKRU: 55555554
[  180.817282][  T228] Call Trace:
[  180.817454][  T228]  <TASK>
[ 180.817555][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 180.817757][ T228] ? __warn (kernel/panic.c:748) 
[ 180.817916][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 180.818133][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 180.818370][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 180.818513][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 180.818700][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 180.818948][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 180.819147][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 180.819429][ 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) 
[ 180.819635][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 180.819825][ T228] register_netdevice (net/core/dev.c:11003) 
[ 180.820018][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 180.820257][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 180.820464][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 180.820710][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 180.820972][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 180.821257][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 180.821446][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 180.821644][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 180.821893][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 180.822086][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 180.822293][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 180.822487][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 180.822678][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 180.822830][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 180.823020][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 180.823225][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 180.823423][ T228] ksys_write (fs/read_write.c:731) 
[ 180.823568][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 180.823772][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 180.823963][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  180.824199][  T228] RIP: 0033:0x7f0069921b77
[ 180.824410][ 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
[  180.825060][  T228] RSP: 002b:00007ffd2dbd2258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  180.825353][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  180.825639][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  180.825918][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  180.826193][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  180.826488][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  182.510039][  T228] ------------[ cut here ]------------
| [ 182.510540][ 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) 
| [  182.511169][  T228] Modules linked in: netdevsim
| [  182.512149][  T228] Tainted: [W]=WARN
[  182.512402][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 182.512781][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.513168][ 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
[  182.514243][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  182.514645][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  182.515104][  T228] RDX: 0000000000000000 RSI: ffff88800a052c98 RDI: ffff8880094a8b28
[  182.515574][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  182.516034][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  182.516505][  T228] R13: ffff88800a052128 R14: ffff88800a052008 R15: ffff88800a052000
[  182.517119][  T228] FS:  00007f00697e0740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  182.517665][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  182.518057][  T228] CR2: 0000562071d47258 CR3: 000000000a3c6001 CR4: 0000000000772ef0
[  182.518531][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  182.518993][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  182.519465][  T228] PKRU: 55555554
[  182.519702][  T228] Call Trace:
[  182.519939][  T228]  <TASK>
[ 182.520104][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.520437][ T228] ? __warn (kernel/panic.c:748) 
[ 182.520682][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.521008][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 182.521349][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 182.521591][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 182.521903][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 182.522257][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.522592][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 182.522991][ 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) 
[ 182.523334][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 182.523657][ T228] register_netdevice (net/core/dev.c:11003) 
[ 182.523979][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 182.524329][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 182.524724][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 182.525160][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 182.525619][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 182.526053][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 182.526393][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 182.526739][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 182.527149][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 182.527497][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 182.527814][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 182.528136][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 182.528478][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 182.528735][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 182.529059][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 182.529404][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 182.529741][ T228] ksys_write (fs/read_write.c:731) 
[ 182.529986][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 182.530339][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 182.530665][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  182.531055][  T228] RIP: 0033:0x7f0069921b77
[ 182.531377][ 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
[  182.532349][  T228] RSP: 002b:00007ffd2dbd2258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  182.532639][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  182.532920][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  182.533197][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  182.533499][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  182.533776][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  184.206766][  T228] ------------[ cut here ]------------
| [ 184.207103][ 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) 
| [  184.207516][  T228] Modules linked in: netdevsim
| [  184.208131][  T228] Tainted: [W]=WARN
[  184.208294][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 184.208543][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.208806][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  184.209525][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  184.209782][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  184.210096][  T228] RDX: 0000000000000000 RSI: ffff8880025fac98 RDI: ffff8880094a8b28
[  184.210438][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  184.210742][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  184.211054][  T228] R13: ffff8880025fa128 R14: ffff8880025fa008 R15: ffff8880025fa000
[  184.211444][  T228] FS:  00007f00697e0740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  184.211788][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  184.212027][  T228] CR2: 00007f00698d9890 CR3: 000000000a3c6001 CR4: 0000000000772ef0
[  184.212329][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  184.212628][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  184.213079][  T228] PKRU: 55555554
[  184.213248][  T228] Call Trace:
[  184.213403][  T228]  <TASK>
[ 184.213507][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.213715][ T228] ? __warn (kernel/panic.c:748) 
[ 184.213872][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.214095][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 184.214378][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 184.214536][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 184.214739][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 184.214952][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.215166][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 184.215436][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 184.215646][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 184.215858][ T228] register_netdevice (net/core/dev.c:11003) 
[ 184.216065][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 184.216295][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 184.216517][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 184.216777][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 184.217058][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 184.217337][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 184.217541][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 184.217755][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 184.218014][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 184.218239][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 184.218448][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 184.218653][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 184.218871][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 184.219034][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 184.219284][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 184.219499][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 184.219709][ T228] ksys_write (fs/read_write.c:731) 
[ 184.219866][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 184.220080][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 184.220296][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  184.220554][  T228] RIP: 0033:0x7f0069921b77
[ 184.220764][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  184.221487][  T228] RSP: 002b:00007ffd2dbd2258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  184.221800][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  184.222104][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  184.222414][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  184.222705][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  184.223012][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  185.941839][  T228] ------------[ cut here ]------------
| [ 185.942230][ 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) 
| [  185.942627][  T228] Modules linked in: netdevsim
| [  185.943255][  T228] Tainted: [W]=WARN
[  185.943416][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 185.943672][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 185.943920][ 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
[  185.944590][  T228] RSP: 0000:ffffc90000ae7910 EFLAGS: 00010246
[  185.944849][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  185.945152][  T228] RDX: 0000000000000000 RSI: ffff8880090eac98 RDI: ffff8880094a8b28
[  185.945473][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  185.945771][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  185.946072][  T228] R13: ffff8880090ea128 R14: ffff8880090ea008 R15: ffff8880090ea000
[  185.946388][  T228] FS:  00007f00697e0740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  185.946735][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  185.947138][  T228] CR2: 00007f73022d4ba0 CR3: 000000000a3c6004 CR4: 0000000000772ef0
[  185.947467][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  185.947795][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  185.948086][  T228] PKRU: 55555554
[  185.948272][  T228] Call Trace:
[  185.948425][  T228]  <TASK>
[ 185.948536][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 185.948756][ T228] ? __warn (kernel/panic.c:748) 
[ 185.948925][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 185.949139][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 185.949358][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 185.949519][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 185.949720][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 185.949947][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 185.950167][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 185.950427][ 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) 
[ 185.950635][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 185.950850][ T228] register_netdevice (net/core/dev.c:11003) 
[ 185.951075][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 185.951316][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 185.951558][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 185.951847][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 185.952132][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 185.952415][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 185.952629][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 185.952852][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 185.953123][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 185.953347][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 185.953547][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 185.953755][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 185.953982][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 185.954156][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 185.954375][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 185.954584][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 185.954793][ T228] ksys_write (fs/read_write.c:731) 
[ 185.954955][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 185.955171][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 185.955382][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  185.955625][  T228] RIP: 0033:0x7f0069921b77
[ 185.955838][ 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
[  185.956541][  T228] RSP: 002b:00007ffd2dbd2258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  185.956851][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  185.957175][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  185.957503][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  185.957798][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  185.958104][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  187.645418][  T228] ------------[ cut here ]------------
| [ 187.645827][ 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) 
| [  187.646314][  T228] Modules linked in: netdevsim
| [  187.647033][  T228] Tainted: [W]=WARN
[  187.647242][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 187.647538][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 187.647841][ 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
[  187.648693][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  187.649118][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  187.649626][  T228] RDX: 0000000000000000 RSI: ffff88800e612c98 RDI: ffff8880094a8b28
[  187.650100][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  187.650453][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  187.650751][  T228] R13: ffff88800e612128 R14: ffff88800e612008 R15: ffff88800e612000
[  187.651122][  T228] FS:  00007f00697e0740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  187.651478][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  187.651726][  T228] CR2: 0000562071c00408 CR3: 000000000a3c6004 CR4: 0000000000772ef0
[  187.652137][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  187.652566][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  187.653234][  T228] PKRU: 55555554
[  187.653461][  T228] Call Trace:
[  187.653664][  T228]  <TASK>
[ 187.653815][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 187.654150][ T228] ? __warn (kernel/panic.c:748) 
[ 187.654445][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 187.654798][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 187.655158][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 187.655447][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 187.655797][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 187.656175][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 187.656542][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 187.656971][ 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) 
[ 187.657390][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 187.657755][ T228] register_netdevice (net/core/dev.c:11003) 
[ 187.658112][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 187.658502][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 187.658885][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 187.659344][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 187.659704][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 187.660028][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 187.660332][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 187.660605][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 187.660879][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 187.661131][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 187.661440][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 187.661659][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 187.661877][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 187.662061][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 187.662297][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 187.662516][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 187.662806][ T228] ksys_write (fs/read_write.c:731) 
[ 187.663033][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 187.663350][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 187.663617][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  187.663878][  T228] RIP: 0033:0x7f0069921b77
[ 187.664109][ 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
[  187.664827][  T228] RSP: 002b:00007ffd2dbd2258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  187.665157][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  187.665474][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  187.665780][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  187.666109][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  187.666497][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  189.320559][  T228] ------------[ cut here ]------------
| [ 189.321000][ 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) 
| [  189.321667][  T228] Modules linked in: netdevsim
| [  189.322437][  T228] Tainted: [W]=WARN
[  189.322658][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 189.322943][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 189.323241][ 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
[  189.324019][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  189.324319][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  189.324659][  T228] RDX: 0000000000000000 RSI: ffff88800a0dac98 RDI: ffff8880094a8b28
[  189.325000][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  189.325356][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  189.325697][  T228] R13: ffff88800a0da128 R14: ffff88800a0da008 R15: ffff88800a0da000
[  189.326030][  T228] FS:  00007f00697e0740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  189.326428][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  189.326710][  T228] CR2: 0000562071d63fe8 CR3: 000000000a3c6005 CR4: 0000000000772ef0
[  189.327045][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  189.327387][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  189.327721][  T228] PKRU: 55555554
[  189.327893][  T228] Call Trace:
[  189.328062][  T228]  <TASK>
[ 189.328179][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 189.328423][ T228] ? __warn (kernel/panic.c:748) 
[ 189.328600][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 189.328829][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 189.329061][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 189.329245][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 189.329471][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 189.329708][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 189.329941][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 189.330241][ 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) 
[ 189.330473][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 189.330701][ T228] register_netdevice (net/core/dev.c:11003) 
[ 189.330936][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 189.331190][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 189.331445][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 189.331737][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 189.332041][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 189.332346][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 189.332573][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 189.332810][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 189.333100][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 189.333337][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 189.333565][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 189.333793][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 189.334023][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 189.334201][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 189.334444][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 189.334677][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 189.334910][ T228] ksys_write (fs/read_write.c:731) 
[ 189.335081][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 189.335325][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 189.335563][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  189.335840][  T228] RIP: 0033:0x7f0069921b77
[ 189.336071][ 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
[  189.336863][  T228] RSP: 002b:00007ffd2dbd2258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  189.337211][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  189.337545][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  189.337879][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  189.338225][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002
[  189.338554][  T228] R13: 00007f00699dd760 R14: 0000000000000002 R15: 00007f00699d89c0
| [  190.987862][  T228] ------------[ cut here ]------------
| [ 190.988270][ 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) 
| [  190.988678][  T228] Modules linked in: netdevsim
| [  190.989310][  T228] Tainted: [W]=WARN
[  190.989475][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 190.989721][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.989981][ 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
[  190.990807][  T228] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  190.991168][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  190.991527][  T228] RDX: 0000000000000000 RSI: ffff888009b7ac98 RDI: ffff8880094a8b28
[  190.991832][  T228] RBP: ffffffffa7123440 R08: 0000000000000000 R09: fffffbfff49fd83c
[  190.992170][  T228] R10: ffffffffa4fec1e7 R11: ffff8880094a8040 R12: 0000000000000000
[  190.992576][  T228] R13: ffff888009b7a128 R14: ffff888009b7a008 R15: ffff888009b7a000
[  190.992867][  T228] FS:  00007f00697e0740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  190.993238][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  190.993526][  T228] CR2: 00007f00698d9890 CR3: 000000000a3c6005 CR4: 0000000000772ef0
[  190.994150][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  190.994487][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  190.994782][  T228] PKRU: 55555554
[  190.994954][  T228] Call Trace:
[  190.995187][  T228]  <TASK>
[ 190.995387][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.995697][ T228] ? __warn (kernel/panic.c:748) 
[ 190.995955][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.996316][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 190.996664][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 190.996918][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 190.997298][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 190.997658][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 190.998003][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 190.998448][ 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) 
[ 190.998785][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 190.999107][ T228] register_netdevice (net/core/dev.c:11003) 
[ 190.999533][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 190.999888][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 191.000267][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 191.000679][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 191.001123][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 191.001604][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 191.001822][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 191.002036][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 191.002322][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 191.002523][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 191.002725][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 191.002969][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 191.003197][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 191.003388][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 191.003647][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 191.003945][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 191.004326][ T228] ksys_write (fs/read_write.c:731) 
[ 191.004603][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 191.004996][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 191.005397][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  191.005815][  T228] RIP: 0033:0x7f0069921b77
[ 191.006153][ 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
[  191.007288][  T228] RSP: 002b:00007ffd2dbd2258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  191.007751][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0069921b77
[  191.008257][  T228] RDX: 0000000000000002 RSI: 0000562071d65130 RDI: 0000000000000001
[  191.008739][  T228] RBP: 0000562071d65130 R08: 0000000000000000 R09: 00007f00699944e0
[  191.009195][  T228] R10: 00007f00699943e0 R11: 0000000000000246 R12: 0000000000000002


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