======================================
| 0
| xx__-> [   11.854455][  T229] ------------[ cut here ]------------
| [ 11.855125][ T229] WARNING: CPU: 2 PID: 229 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) 
| [   11.855637][  T229] Modules linked in: netdevsim
[   11.856251][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.856506][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.856767][ T229] 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
[   11.857482][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   11.857751][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.858065][  T229] RDX: 0000000000000000 RSI: ffff888008e52c98 RDI: ffff888008af50a8
[   11.858382][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   11.858695][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[   11.859013][  T229] R13: ffff888008e52128 R14: ffff888008e52008 R15: ffff888008e52000
[   11.859424][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[   11.859785][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.860056][  T229] CR2: 0000561a434b247c CR3: 000000000bf2a001 CR4: 0000000000772ef0
[   11.860384][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.860721][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.861058][  T229] PKRU: 55555554
[   11.861243][  T229] Call Trace:
[   11.861409][  T229]  <TASK>
[ 11.861539][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.861767][ T229] ? __warn (kernel/panic.c:748) 
[ 11.861929][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.862160][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.862402][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.862567][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.862774][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.863015][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.863256][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.863520][ T229] ? _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) 
[ 11.863746][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.863971][ T229] register_netdevice (net/core/dev.c:11003) 
[ 11.864210][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.864447][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.864681][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.864949][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.865286][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 11.865577][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.865787][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 11.866023][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 11.866327][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.866546][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 11.866765][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 11.866978][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 11.867232][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 11.867405][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 11.867625][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.867864][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.868086][ T229] ksys_write (fs/read_write.c:731) 
[ 11.868277][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 11.868525][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.868813][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.869090][  T229] RIP: 0033:0x7fa19e635b77
[ 11.869330][ T229] 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
[   11.870103][  T229] RSP: 002b:00007ffcb926b618 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   11.870492][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[   11.870797][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[   11.871116][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[   11.871460][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[   11.871851][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  151.959397][  T229] ------------[ cut here ]------------
| [ 151.959707][ T229] WARNING: CPU: 2 PID: 229 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) 
| [  151.960148][  T229] Modules linked in: netdevsim
| [  151.960839][  T229] Tainted: [W]=WARN
[  151.961029][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 151.961331][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 151.961625][ T229] 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
[  151.962450][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  151.962740][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  151.964610][  T229] RDX: 0000000000000000 RSI: ffff888008cdac98 RDI: ffff888008af50a8
[  151.965206][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  151.965632][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  151.965976][  T229] R13: ffff888008cda128 R14: ffff888008cda008 R15: ffff888008cda000
[  151.966347][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  151.966731][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  151.967031][  T229] CR2: 0000561a434d74f8 CR3: 000000000bf2a004 CR4: 0000000000772ef0
[  151.967386][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  151.967723][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  151.968081][  T229] PKRU: 55555554
[  151.968275][  T229] Call Trace:
[  151.968431][  T229]  <TASK>
[ 151.968583][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 151.968794][ T229] ? __warn (kernel/panic.c:748) 
[ 151.969023][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 151.969231][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 151.969447][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 151.969638][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 151.969902][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 151.970200][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 151.970449][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 151.970728][ T229] ? _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) 
[ 151.970985][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 151.971297][ T229] register_netdevice (net/core/dev.c:11003) 
[ 151.971564][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 151.971849][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 151.972130][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 151.972476][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 151.972823][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 151.973258][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 151.973530][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 151.973832][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 151.974273][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 151.974612][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 151.974948][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 151.975338][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 151.975703][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 151.975984][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 151.976353][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 151.976645][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 151.976907][ T229] ksys_write (fs/read_write.c:731) 
[ 151.977161][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 151.977387][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 151.977624][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  151.977894][  T229] RIP: 0033:0x7fa19e635b77
[ 151.978133][ T229] 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
[  151.978801][  T229] RSP: 002b:00007ffcb926a2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  151.979230][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  151.979581][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  151.979895][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  151.980221][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  151.980572][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  153.635650][  T229] ------------[ cut here ]------------
| [ 153.635904][ T229] WARNING: CPU: 3 PID: 229 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) 
| [  153.636339][  T229] Modules linked in: netdevsim
| [  153.637016][  T229] Tainted: [W]=WARN
[  153.637162][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 153.637404][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 153.637655][ T229] 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
[  153.638386][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  153.638654][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  153.638927][  T229] RDX: 0000000000000000 RSI: ffff888008acac98 RDI: ffff888008af50a8
[  153.639215][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  153.639503][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  153.639802][  T229] R13: ffff888008aca128 R14: ffff888008aca008 R15: ffff888008aca000
[  153.640097][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  153.640423][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  153.640655][  T229] CR2: 0000561a434b247c CR3: 000000000bf2a004 CR4: 0000000000772ef0
[  153.640933][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  153.641224][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  153.641503][  T229] PKRU: 55555554
[  153.641658][  T229] Call Trace:
[  153.641804][  T229]  <TASK>
[ 153.641902][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 153.642098][ T229] ? __warn (kernel/panic.c:748) 
[ 153.642247][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 153.642437][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 153.642635][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 153.642777][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 153.642963][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 153.643172][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 153.643370][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 153.643609][ T229] ? _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) 
[ 153.643833][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 153.644034][ T229] register_netdevice (net/core/dev.c:11003) 
[ 153.644246][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 153.644444][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 153.644650][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 153.644892][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 153.645167][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 153.645411][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 153.645691][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 153.645892][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 153.646143][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 153.646331][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 153.646535][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 153.646734][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 153.646939][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 153.647102][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 153.647306][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 153.647510][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 153.647719][ T229] ksys_write (fs/read_write.c:731) 
[ 153.647875][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 153.648100][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 153.648291][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  153.648544][  T229] RIP: 0033:0x7fa19e635b77
[ 153.648741][ T229] 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
[  153.649402][  T229] RSP: 002b:00007ffcb926a2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  153.649697][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  153.649978][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  153.650265][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  153.650546][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  153.650867][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  155.191607][  T229] ------------[ cut here ]------------
| [ 155.191872][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  155.192283][  T229] Modules linked in: netdevsim
| [  155.192909][  T229] Tainted: [W]=WARN
[  155.193199][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 155.193461][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.193731][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  155.194402][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  155.194672][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  155.194972][  T229] RDX: 0000000000000000 RSI: ffff88800ae42c98 RDI: ffff888008af50a8
[  155.195271][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  155.195585][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  155.195885][  T229] R13: ffff88800ae42128 R14: ffff88800ae42008 R15: ffff88800ae42000
[  155.196191][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  155.196557][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  155.196887][  T229] CR2: 0000561a434b247c CR3: 000000000bf2a005 CR4: 0000000000772ef0
[  155.197215][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  155.197604][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  155.197955][  T229] PKRU: 55555554
[  155.198123][  T229] Call Trace:
[  155.198347][  T229]  <TASK>
[ 155.198472][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.198778][ T229] ? __warn (kernel/panic.c:748) 
[ 155.198944][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.199162][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 155.199378][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 155.199552][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 155.199826][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 155.200074][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.200295][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 155.200652][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 155.200868][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 155.201136][ T229] register_netdevice (net/core/dev.c:11003) 
[ 155.201368][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 155.201658][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 155.201890][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 155.202230][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 155.202579][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 155.202844][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 155.203133][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 155.203349][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 155.203688][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 155.203892][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 155.204116][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 155.204376][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 155.204628][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 155.204795][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 155.205081][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 155.205293][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 155.205585][ T229] ksys_write (fs/read_write.c:731) 
[ 155.205749][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 155.206012][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 155.206271][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  155.206628][  T229] RIP: 0033:0x7fa19e635b77
[ 155.206893][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  155.207590][  T229] RSP: 002b:00007ffcb926a2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  155.207951][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  155.208323][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  155.208636][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  155.209004][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  155.209330][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  156.787323][  T229] ------------[ cut here ]------------
| [ 156.787692][ T229] WARNING: CPU: 2 PID: 229 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) 
| [  156.788204][  T229] Modules linked in: netdevsim
| [  156.788872][  T229] Tainted: [W]=WARN
[  156.789057][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 156.789345][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 156.789679][ T229] 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
[  156.790446][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  156.790736][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  156.791072][  T229] RDX: 0000000000000000 RSI: ffff88800b99ac98 RDI: ffff888008af50a8
[  156.791413][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  156.791755][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  156.792091][  T229] R13: ffff88800b99a128 R14: ffff88800b99a008 R15: ffff88800b99a000
[  156.792425][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  156.792799][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  156.793084][  T229] CR2: 0000561a4369b130 CR3: 000000000bf2a005 CR4: 0000000000772ef0
[  156.793379][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  156.793718][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  156.794045][  T229] PKRU: 55555554
[  156.794204][  T229] Call Trace:
[  156.794370][  T229]  <TASK>
[ 156.794509][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 156.794777][ T229] ? __warn (kernel/panic.c:748) 
[ 156.794939][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 156.795159][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 156.795375][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 156.795559][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 156.795779][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 156.796021][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 156.796238][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 156.796514][ T229] ? _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) 
[ 156.796727][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 156.796932][ T229] register_netdevice (net/core/dev.c:11003) 
[ 156.797152][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 156.797365][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 156.797630][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 156.797917][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 156.798208][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 156.798481][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 156.798712][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 156.798928][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 156.799209][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 156.799430][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 156.799684][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 156.799897][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 156.800118][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 156.800314][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 156.800539][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 156.800764][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 156.800971][ T229] ksys_write (fs/read_write.c:731) 
[ 156.801158][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 156.801385][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 156.801637][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  156.801886][  T229] RIP: 0033:0x7fa19e635b77
[ 156.802111][ T229] 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
[  156.802831][  T229] RSP: 002b:00007ffcb926a2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  156.803168][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  156.803496][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  156.803836][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  156.804147][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  156.804513][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  158.396277][  T229] ------------[ cut here ]------------
| [ 158.396502][ T229] WARNING: CPU: 0 PID: 229 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) 
| [  158.396880][  T229] Modules linked in: netdevsim
| [  158.397596][  T229] Tainted: [W]=WARN
[  158.397757][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 158.398043][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.398315][ T229] 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
[  158.399082][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  158.399349][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  158.399713][  T229] RDX: 0000000000000000 RSI: ffff8880027a2c98 RDI: ffff888008af50a8
[  158.400049][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  158.400364][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  158.400677][  T229] R13: ffff8880027a2128 R14: ffff8880027a2008 R15: ffff8880027a2000
[  158.400999][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  158.401379][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  158.401648][  T229] CR2: 0000561a434d75e8 CR3: 000000000bf2a001 CR4: 0000000000772ef0
[  158.401964][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  158.402300][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  158.402604][  T229] PKRU: 55555554
[  158.402768][  T229] Call Trace:
[  158.402928][  T229]  <TASK>
[ 158.403056][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.403270][ T229] ? __warn (kernel/panic.c:748) 
[ 158.403433][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.403642][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 158.403865][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 158.404048][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 158.404261][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 158.404487][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.404707][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 158.404978][ T229] ? _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) 
[ 158.405217][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 158.405435][ T229] register_netdevice (net/core/dev.c:11003) 
[ 158.405650][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 158.405876][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 158.406127][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 158.406400][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 158.406685][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 158.406964][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 158.407198][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 158.407422][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 158.407691][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 158.407902][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 158.408146][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 158.408361][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 158.408583][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 158.408758][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 158.408972][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 158.409215][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 158.409433][ T229] ksys_write (fs/read_write.c:731) 
[ 158.409608][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 158.409837][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 158.410064][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  158.410323][  T229] RIP: 0033:0x7fa19e635b77
[ 158.410540][ T229] 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
[  158.411271][  T229] RSP: 002b:00007ffcb926a2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  158.411587][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  158.411909][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  158.412233][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  158.412543][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  158.412857][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  160.110668][  T229] ------------[ cut here ]------------
| [ 160.110986][ T229] WARNING: CPU: 3 PID: 229 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) 
| [  160.111462][  T229] Modules linked in: netdevsim
| [  160.112101][  T229] Tainted: [W]=WARN
[  160.112274][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 160.112535][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.112814][ T229] 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
[  160.113580][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  160.113901][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  160.114280][  T229] RDX: 0000000000000000 RSI: ffff888008e52c98 RDI: ffff888008af50a8
[  160.114616][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  160.114907][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  160.115213][  T229] R13: ffff888008e52128 R14: ffff888008e52008 R15: ffff888008e52000
[  160.115505][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  160.115838][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  160.116130][  T229] CR2: 00007fa4e4919000 CR3: 000000000bf2a003 CR4: 0000000000772ef0
[  160.116493][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  160.116834][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  160.117154][  T229] PKRU: 55555554
[  160.117305][  T229] Call Trace:
[  160.117470][  T229]  <TASK>
[ 160.117590][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.117798][ T229] ? __warn (kernel/panic.c:748) 
[ 160.117979][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.118189][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 160.118432][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 160.118601][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 160.118827][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 160.119076][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 160.119302][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 160.119578][ T229] ? _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) 
[ 160.119840][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 160.120079][ T229] register_netdevice (net/core/dev.c:11003) 
[ 160.120332][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 160.120539][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 160.120789][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 160.121154][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 160.121437][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 160.121711][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 160.121913][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 160.122130][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 160.122384][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 160.122573][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 160.122798][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 160.123054][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 160.123258][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 160.123411][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 160.123612][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 160.123808][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 160.124052][ T229] ksys_write (fs/read_write.c:731) 
[ 160.124216][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 160.124439][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 160.124649][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  160.124911][  T229] RIP: 0033:0x7fa19e635b77
[ 160.125151][ T229] 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
[  160.125975][  T229] RSP: 002b:00007ffcb926a2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  160.126354][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  160.126723][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  160.127095][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  160.127454][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  160.127807][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  161.638330][  T229] ------------[ cut here ]------------
| [ 161.638666][ T229] WARNING: CPU: 3 PID: 229 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) 
| [  161.639290][  T229] Modules linked in: netdevsim
| [  161.640259][  T229] Tainted: [W]=WARN
[  161.640498][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 161.640883][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.641292][ T229] 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
[  161.642369][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  161.642754][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  161.643270][  T229] RDX: 0000000000000000 RSI: ffff888008cdac98 RDI: ffff888008af50a8
[  161.643774][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  161.644264][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  161.644767][  T229] R13: ffff888008cda128 R14: ffff888008cda008 R15: ffff888008cda000
[  161.645234][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  161.645751][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  161.646140][  T229] CR2: 0000561a434b247c CR3: 000000000bf2a003 CR4: 0000000000772ef0
[  161.646582][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  161.647046][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  161.647492][  T229] PKRU: 55555554
[  161.647728][  T229] Call Trace:
[  161.647952][  T229]  <TASK>
[ 161.648132][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.648435][ T229] ? __warn (kernel/panic.c:748) 
[ 161.648671][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.648988][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 161.649317][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 161.649551][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 161.649871][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 161.650219][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.650544][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 161.650943][ T229] ? _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) 
[ 161.651273][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 161.651577][ T229] register_netdevice (net/core/dev.c:11003) 
[ 161.651889][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 161.652236][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 161.652575][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 161.653016][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 161.653458][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 161.653877][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.654205][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 161.654528][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 161.654934][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.655262][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 161.655563][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 161.655879][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 161.656221][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 161.656476][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 161.656803][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 161.657139][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 161.657473][ T229] ksys_write (fs/read_write.c:731) 
[ 161.657718][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 161.658068][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 161.658395][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  161.658790][  T229] RIP: 0033:0x7fa19e635b77
[ 161.659142][ T229] 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
[  161.660270][  T229] RSP: 002b:00007ffcb926a2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  161.660753][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  161.661235][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  161.661694][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  161.662164][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  161.662608][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  163.209236][  T229] ------------[ cut here ]------------
| [ 163.209497][ T229] WARNING: CPU: 3 PID: 229 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) 
| [  163.209925][  T229] Modules linked in: netdevsim
| [  163.210610][  T229] Tainted: [W]=WARN
[  163.210780][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 163.211065][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.211344][ T229] 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
[  163.212119][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  163.212414][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  163.212760][  T229] RDX: 0000000000000000 RSI: ffff888008acac98 RDI: ffff888008af50a8
[  163.213103][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  163.213433][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  163.213754][  T229] R13: ffff888008aca128 R14: ffff888008aca008 R15: ffff888008aca000
[  163.214078][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  163.214438][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  163.214697][  T229] CR2: 0000561a43671de8 CR3: 000000000bf2a001 CR4: 0000000000772ef0
[  163.215114][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  163.215526][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  163.215841][  T229] PKRU: 55555554
[  163.215985][  T229] Call Trace:
[  163.216145][  T229]  <TASK>
[ 163.216247][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.216436][ T229] ? __warn (kernel/panic.c:748) 
[ 163.216583][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.216772][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 163.216974][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 163.217143][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 163.217331][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 163.217534][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.217736][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 163.217973][ T229] ? _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) 
[ 163.218176][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 163.218368][ T229] register_netdevice (net/core/dev.c:11003) 
[ 163.218564][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 163.218763][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 163.218975][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 163.219229][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 163.219492][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 163.219748][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.219944][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 163.220154][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 163.220399][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.220589][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 163.220775][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 163.220968][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 163.221179][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 163.221335][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 163.221530][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 163.221726][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 163.221926][ T229] ksys_write (fs/read_write.c:731) 
[ 163.222081][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 163.222282][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 163.222477][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  163.222711][  T229] RIP: 0033:0x7fa19e635b77
[ 163.222951][ T229] 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
[  163.223664][  T229] RSP: 002b:00007ffcb926a2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  163.223949][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  163.224241][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  163.224519][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  163.224803][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  163.225103][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  164.766400][  T229] ------------[ cut here ]------------
| [ 164.766648][ T229] WARNING: CPU: 3 PID: 229 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) 
| [  164.767060][  T229] Modules linked in: netdevsim
| [  164.767678][  T229] Tainted: [W]=WARN
[  164.767828][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 164.768094][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.768351][ T229] 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
[  164.769053][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  164.769307][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  164.769622][  T229] RDX: 0000000000000000 RSI: ffff88800ae42c98 RDI: ffff888008af50a8
[  164.769923][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  164.770234][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  164.770534][  T229] R13: ffff88800ae42128 R14: ffff88800ae42008 R15: ffff88800ae42000
[  164.770827][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  164.771180][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  164.771443][  T229] CR2: 0000561a434b247c CR3: 000000000bf2a001 CR4: 0000000000772ef0
[  164.771747][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  164.772061][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  164.772363][  T229] PKRU: 55555554
[  164.772514][  T229] Call Trace:
[  164.772666][  T229]  <TASK>
[ 164.772774][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.772970][ T229] ? __warn (kernel/panic.c:748) 
[ 164.773124][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.773311][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 164.773504][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 164.773646][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 164.773836][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 164.774075][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.774272][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 164.774523][ T229] ? _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) 
[ 164.774716][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 164.774921][ T229] register_netdevice (net/core/dev.c:11003) 
[ 164.775127][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 164.775325][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 164.775526][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 164.775768][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 164.776031][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 164.776275][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 164.776461][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 164.776654][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 164.776892][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 164.777091][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 164.777281][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 164.777469][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 164.777661][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 164.777810][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 164.778010][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 164.778213][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 164.778408][ T229] ksys_write (fs/read_write.c:731) 
[ 164.778559][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 164.778764][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 164.778950][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  164.779189][  T229] RIP: 0033:0x7fa19e635b77
[ 164.779381][ T229] 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
[  164.780044][  T229] RSP: 002b:00007ffcb926a2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  164.780328][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  164.780719][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  164.781211][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  164.781672][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  164.782194][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  166.320296][  T229] ------------[ cut here ]------------
| [ 166.320532][ T229] WARNING: CPU: 1 PID: 229 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) 
| [  166.320913][  T229] Modules linked in: netdevsim
| [  166.321519][  T229] Tainted: [W]=WARN
[  166.321676][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 166.321923][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.322283][ T229] 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
[  166.322971][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  166.323231][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  166.323522][  T229] RDX: 0000000000000000 RSI: ffff88800b99ac98 RDI: ffff888008af50a8
[  166.323814][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  166.324113][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  166.324402][  T229] R13: ffff88800b99a128 R14: ffff88800b99a008 R15: ffff88800b99a000
[  166.324701][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[  166.325043][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  166.325299][  T229] CR2: 0000561a434b247c CR3: 000000000bf2a004 CR4: 0000000000772ef0
[  166.325593][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  166.325882][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  166.326211][  T229] PKRU: 55555554
[  166.326382][  T229] Call Trace:
[  166.326546][  T229]  <TASK>
[ 166.326648][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.326866][ T229] ? __warn (kernel/panic.c:748) 
[ 166.327029][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.327236][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 166.327447][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 166.327600][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 166.327832][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 166.328067][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.328283][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 166.328541][ T229] ? _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) 
[ 166.328755][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 166.328962][ T229] register_netdevice (net/core/dev.c:11003) 
[ 166.329174][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 166.329380][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 166.329606][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 166.329871][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 166.330185][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 166.330444][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.330645][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 166.331006][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 166.331268][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.331469][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 166.331671][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 166.331874][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 166.332104][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 166.332266][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 166.332477][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 166.332685][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 166.332896][ T229] ksys_write (fs/read_write.c:731) 
[ 166.333064][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 166.333286][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 166.333491][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  166.333749][  T229] RIP: 0033:0x7fa19e635b77
[ 166.333979][ T229] 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
[  166.334702][  T229] RSP: 002b:00007ffcb926a2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  166.335026][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  166.335326][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  166.335636][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  166.335953][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  166.336276][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  170.785426][  T229] ------------[ cut here ]------------
| [ 170.785825][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  170.786261][  T229] Modules linked in: netdevsim
| [  170.786871][  T229] Tainted: [W]=WARN
[  170.787029][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 170.787279][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 170.787614][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  170.788345][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  170.788634][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  170.788944][  T229] RDX: 0000000000000000 RSI: ffff888008e52c98 RDI: ffff888008af50a8
[  170.789272][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  170.789584][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  170.789894][  T229] R13: ffff888008e52128 R14: ffff888008e52008 R15: ffff888008e52000
[  170.790225][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  170.790578][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  170.790834][  T229] CR2: 00007fa19e5ed890 CR3: 000000000bf2a003 CR4: 0000000000772ef0
[  170.791156][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  170.791474][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  170.791787][  T229] PKRU: 55555554
[  170.791951][  T229] Call Trace:
[  170.792124][  T229]  <TASK>
[ 170.792260][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 170.792473][ T229] ? __warn (kernel/panic.c:748) 
[ 170.792633][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 170.792848][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 170.793107][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 170.793274][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 170.793480][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 170.793697][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 170.793935][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 170.794204][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 170.794436][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 170.794646][ T229] register_netdevice (net/core/dev.c:11003) 
[ 170.794862][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 170.795116][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 170.795340][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 170.795600][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 170.795907][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 170.796189][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 170.796409][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 170.796619][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 170.796882][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 170.797125][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 170.797355][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 170.797567][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 170.797779][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 170.797949][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 170.798197][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 170.798416][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 170.798642][ T229] ksys_write (fs/read_write.c:731) 
[ 170.798787][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 170.798987][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 170.799256][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  170.799507][  T229] RIP: 0033:0x7fa19e635b77
[ 170.799730][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  170.800470][  T229] RSP: 002b:00007ffcb9269a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  170.800777][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  170.801092][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  170.801393][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  170.801692][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  170.802020][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  172.492810][  T229] ------------[ cut here ]------------
| [ 172.493677][ T229] WARNING: CPU: 3 PID: 229 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) 
| [  172.494221][  T229] Modules linked in: netdevsim
| [  172.495042][  T229] Tainted: [W]=WARN
[  172.495227][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 172.495467][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.495782][ T229] 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
[  172.496509][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  172.496750][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  172.497057][  T229] RDX: 0000000000000000 RSI: ffff8880027a2c98 RDI: ffff888008af50a8
[  172.497351][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  172.497636][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  172.497927][  T229] R13: ffff8880027a2128 R14: ffff8880027a2008 R15: ffff8880027a2000
[  172.498239][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  172.498572][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  172.498843][  T229] CR2: 0000561a43536408 CR3: 000000000bf2a003 CR4: 0000000000772ef0
[  172.499153][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  172.499455][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  172.499762][  T229] PKRU: 55555554
[  172.500231][  T229] Call Trace:
[  172.500456][  T229]  <TASK>
[ 172.500556][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.500815][ T229] ? __warn (kernel/panic.c:748) 
[ 172.501029][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.501322][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 172.501636][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 172.501877][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 172.502211][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 172.502586][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.502971][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 172.503401][ T229] ? _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) 
[ 172.503740][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 172.504094][ T229] register_netdevice (net/core/dev.c:11003) 
[ 172.504444][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 172.504810][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 172.505205][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 172.505607][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 172.506072][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 172.506469][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 172.506791][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 172.507142][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 172.507552][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 172.507858][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 172.508216][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 172.508521][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 172.508839][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 172.509116][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 172.509455][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 172.509814][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 172.510154][ T229] ksys_write (fs/read_write.c:731) 
[ 172.510392][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 172.510725][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 172.511084][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  172.511474][  T229] RIP: 0033:0x7fa19e635b77
[ 172.511803][ T229] 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
[  172.512909][  T229] RSP: 002b:00007ffcb9269a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  172.513407][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  172.513889][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  172.514396][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  172.514871][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  172.515364][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  174.252379][  T229] ------------[ cut here ]------------
| [ 174.252755][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  174.253188][  T229] Modules linked in: netdevsim
| [  174.253893][  T229] Tainted: [W]=WARN
[  174.254341][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 174.254670][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.255009][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  174.255825][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  174.256137][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  174.256490][  T229] RDX: 0000000000000000 RSI: ffff888008cdac98 RDI: ffff888008af50a8
[  174.256848][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  174.257217][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  174.257536][  T229] R13: ffff888008cda128 R14: ffff888008cda008 R15: ffff888008cda000
[  174.257869][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  174.258303][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  174.258562][  T229] CR2: 0000561a43540088 CR3: 000000000bf2a001 CR4: 0000000000772ef0
[  174.258882][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  174.259186][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  174.259697][  T229] PKRU: 55555554
[  174.259895][  T229] Call Trace:
[  174.260093][  T229]  <TASK>
[ 174.260231][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.260446][ T229] ? __warn (kernel/panic.c:748) 
[ 174.260629][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.260873][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 174.261118][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 174.261289][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 174.261523][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 174.261770][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.262036][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 174.262350][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 174.262600][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 174.262862][ T229] register_netdevice (net/core/dev.c:11003) 
[ 174.263122][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 174.263389][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 174.263664][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 174.263979][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 174.264274][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 174.264568][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 174.264796][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 174.265041][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 174.265324][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 174.265562][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 174.265790][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 174.266034][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 174.266268][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 174.266432][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 174.266641][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 174.266853][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 174.267082][ T229] ksys_write (fs/read_write.c:731) 
[ 174.267262][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 174.267495][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 174.267742][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  174.268046][  T229] RIP: 0033:0x7fa19e635b77
[ 174.268308][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  174.269120][  T229] RSP: 002b:00007ffcb9269a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  174.269522][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  174.269912][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  174.270300][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  174.270652][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  174.271012][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  175.999337][  T229] ------------[ cut here ]------------
| [ 175.999789][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  176.000298][  T229] Modules linked in: netdevsim
| [  176.001016][  T229] Tainted: [W]=WARN
[  176.001209][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 176.001518][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 176.001843][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  176.002704][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  176.003005][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  176.003352][  T229] RDX: 0000000000000000 RSI: ffff88800ae42c98 RDI: ffff888008af50a8
[  176.003692][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  176.004101][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  176.004450][  T229] R13: ffff88800ae42128 R14: ffff88800ae42008 R15: ffff88800ae42000
[  176.004795][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  176.005202][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  176.005492][  T229] CR2: 00007fa19e5ed890 CR3: 000000000bf2a002 CR4: 0000000000772ef0
[  176.005875][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  176.006387][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  176.006729][  T229] PKRU: 55555554
[  176.006912][  T229] Call Trace:
[  176.007103][  T229]  <TASK>
[ 176.007234][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 176.007478][ T229] ? __warn (kernel/panic.c:748) 
[ 176.007664][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 176.007907][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 176.008162][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 176.008348][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 176.008581][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 176.008831][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 176.009085][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 176.009390][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 176.009679][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 176.009924][ T229] register_netdevice (net/core/dev.c:11003) 
[ 176.010178][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 176.010427][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 176.010685][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 176.010989][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 176.011318][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 176.011617][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 176.011851][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 176.012108][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 176.012402][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 176.012648][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 176.012884][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 176.013133][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 176.013377][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 176.013594][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 176.013842][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 176.014103][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 176.014348][ T229] ksys_write (fs/read_write.c:731) 
[ 176.014538][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 176.014787][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 176.015036][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  176.015327][  T229] RIP: 0033:0x7fa19e635b77
[ 176.015568][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  176.016359][  T229] RSP: 002b:00007ffcb9269a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  176.016710][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  176.017066][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  176.017406][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  176.017779][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  176.018135][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  177.747296][  T229] ------------[ cut here ]------------
| [ 177.747612][ T229] WARNING: CPU: 0 PID: 229 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) 
| [  177.748057][  T229] Modules linked in: netdevsim
| [  177.748656][  T229] Tainted: [W]=WARN
[  177.748798][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 177.749066][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.749312][ T229] 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
[  177.750017][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  177.750275][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  177.750552][  T229] RDX: 0000000000000000 RSI: ffff888008acac98 RDI: ffff888008af50a8
[  177.750849][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  177.751143][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  177.751432][  T229] R13: ffff888008aca128 R14: ffff888008aca008 R15: ffff888008aca000
[  177.751713][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  177.752064][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  177.752315][  T229] CR2: 00007fb4dec64000 CR3: 000000000bf2a002 CR4: 0000000000772ef0
[  177.752755][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  177.753044][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  177.753326][  T229] PKRU: 55555554
[  177.753472][  T229] Call Trace:
[  177.753628][  T229]  <TASK>
[ 177.753725][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.753914][ T229] ? __warn (kernel/panic.c:748) 
[ 177.754069][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.754257][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 177.754453][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 177.754600][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 177.754783][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 177.754985][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.755187][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 177.755421][ T229] ? _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) 
[ 177.755618][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 177.755810][ T229] register_netdevice (net/core/dev.c:11003) 
[ 177.756011][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 177.756215][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 177.756419][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 177.756663][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 177.756924][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 177.757177][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 177.757369][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 177.757586][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 177.757834][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 177.758033][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 177.758227][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 177.758420][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 177.758636][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 177.758789][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 177.758981][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 177.759191][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 177.759396][ T229] ksys_write (fs/read_write.c:731) 
[ 177.759556][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 177.759758][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 177.759956][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  177.760199][  T229] RIP: 0033:0x7fa19e635b77
[ 177.760418][ T229] 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
[  177.761121][  T229] RSP: 002b:00007ffcb9269a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  177.761411][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  177.761730][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  177.762018][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  177.762311][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  177.762602][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  179.391906][  T229] ------------[ cut here ]------------
| [ 179.392388][ T229] WARNING: CPU: 3 PID: 229 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) 
| [  179.392775][  T229] Modules linked in: netdevsim
| [  179.393464][  T229] Tainted: [W]=WARN
[  179.393610][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 179.393840][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.394089][ T229] 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
[  179.394751][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  179.394990][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  179.395285][  T229] RDX: 0000000000000000 RSI: ffff88800b99ac98 RDI: ffff888008af50a8
[  179.395563][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  179.395844][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  179.396138][  T229] R13: ffff88800b99a128 R14: ffff88800b99a008 R15: ffff88800b99a000
[  179.396425][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  179.396822][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  179.397077][  T229] CR2: 00007fa19e5ed890 CR3: 000000000bf2a004 CR4: 0000000000772ef0
[  179.397363][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  179.397784][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  179.398124][  T229] PKRU: 55555554
[  179.398274][  T229] Call Trace:
[  179.398423][  T229]  <TASK>
[ 179.398523][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.398721][ T229] ? __warn (kernel/panic.c:748) 
[ 179.398867][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.399065][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 179.399268][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 179.399419][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 179.399636][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 179.399844][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.400091][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 179.400345][ T229] ? _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) 
[ 179.400547][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 179.400750][ T229] register_netdevice (net/core/dev.c:11003) 
[ 179.400954][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 179.401165][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 179.401370][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 179.401614][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 179.401887][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 179.402141][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 179.402353][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 179.402553][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 179.402797][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 179.403008][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 179.403196][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 179.403393][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 179.403591][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 179.403757][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 179.403949][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 179.404156][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 179.404364][ T229] ksys_write (fs/read_write.c:731) 
[ 179.404510][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 179.404723][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 179.404920][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  179.405176][  T229] RIP: 0033:0x7fa19e635b77
[ 179.405387][ T229] 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
[  179.406074][  T229] RSP: 002b:00007ffcb9269a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  179.406370][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  179.406656][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  179.406942][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  179.407239][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  179.407527][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  181.097307][  T229] ------------[ cut here ]------------
| [ 181.097806][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  181.098430][  T229] Modules linked in: netdevsim
| [  181.099435][  T229] Tainted: [W]=WARN
[  181.099692][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 181.100112][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.100537][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  181.101685][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  181.102097][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  181.102561][  T229] RDX: 0000000000000000 RSI: ffff888008e52c98 RDI: ffff888008af50a8
[  181.103064][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  181.103529][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  181.104170][  T229] R13: ffff888008e52128 R14: ffff888008e52008 R15: ffff888008e52000
[  181.104639][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  181.105193][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  181.105582][  T229] CR2: 00007fa19e5ed890 CR3: 000000000bf2a002 CR4: 0000000000772ef0
[  181.106073][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  181.106551][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  181.107394][  T229] PKRU: 55555554
[  181.107662][  T229] Call Trace:
[  181.107903][  T229]  <TASK>
[ 181.108088][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.108412][ T229] ? __warn (kernel/panic.c:748) 
[ 181.108665][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.108981][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 181.109332][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 181.109596][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 181.109913][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 181.110279][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.110622][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 181.111073][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 181.111407][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 181.111734][ T229] register_netdevice (net/core/dev.c:11003) 
[ 181.112078][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 181.112419][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 181.112760][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 181.113195][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 181.113628][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 181.114048][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 181.114365][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 181.114692][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 181.115122][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 181.115438][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 181.115754][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 181.116092][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 181.116417][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 181.116698][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 181.117043][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 181.117378][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 181.117715][ T229] ksys_write (fs/read_write.c:731) 
[ 181.117966][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 181.118317][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 181.118638][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  181.119037][  T229] RIP: 0033:0x7fa19e635b77
[ 181.119359][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  181.120509][  T229] RSP: 002b:00007ffcb9269a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  181.120979][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  181.121450][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  181.121926][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  181.122419][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  181.122904][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  182.779878][  T229] ------------[ cut here ]------------
| [ 182.780326][ T229] WARNING: CPU: 1 PID: 229 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) 
| [  182.780727][  T229] Modules linked in: netdevsim
| [  182.781393][  T229] Tainted: [W]=WARN
[  182.781564][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 182.781800][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.782057][ T229] 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
[  182.782716][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  182.782957][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  182.783245][  T229] RDX: 0000000000000000 RSI: ffff8880027a2c98 RDI: ffff888008af50a8
[  182.783526][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  182.783837][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  182.784170][  T229] R13: ffff8880027a2128 R14: ffff8880027a2008 R15: ffff8880027a2000
[  182.784452][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[  182.784844][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  182.785092][  T229] CR2: 00007fe96b1775a0 CR3: 000000000bf2a002 CR4: 0000000000772ef0
[  182.785615][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  182.785910][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  182.786209][  T229] PKRU: 55555554
[  182.786354][  T229] Call Trace:
[  182.786507][  T229]  <TASK>
[ 182.786606][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.786796][ T229] ? __warn (kernel/panic.c:748) 
[ 182.786951][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.787149][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 182.787348][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 182.787494][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 182.787683][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 182.787900][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.788111][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 182.788354][ T229] ? _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) 
[ 182.788553][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 182.788748][ T229] register_netdevice (net/core/dev.c:11003) 
[ 182.788953][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 182.789167][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 182.789371][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 182.789631][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 182.789893][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 182.790158][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 182.790349][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 182.790550][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 182.790790][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 182.790982][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 182.791185][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 182.791392][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 182.791595][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 182.791759][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 182.791952][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 182.792158][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 182.792369][ T229] ksys_write (fs/read_write.c:731) 
[ 182.792524][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 182.792728][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 182.792935][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  182.793181][  T229] RIP: 0033:0x7fa19e635b77
[ 182.793378][ T229] 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
[  182.794068][  T229] RSP: 002b:00007ffcb9269a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  182.794359][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  182.794648][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  182.794932][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  182.795237][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  182.795530][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  184.495380][  T229] ------------[ cut here ]------------
| [ 184.495819][ T229] WARNING: CPU: 3 PID: 229 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) 
| [  184.496254][  T229] Modules linked in: netdevsim
| [  184.496898][  T229] Tainted: [W]=WARN
[  184.497068][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 184.497327][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.497661][ T229] 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
[  184.498533][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  184.498865][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  184.499348][  T229] RDX: 0000000000000000 RSI: ffff888008cdac98 RDI: ffff888008af50a8
[  184.499861][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  184.500340][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  184.500851][  T229] R13: ffff888008cda128 R14: ffff888008cda008 R15: ffff888008cda000
[  184.501185][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  184.501548][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  184.501824][  T229] CR2: 0000561a43699fe8 CR3: 000000000bf2a004 CR4: 0000000000772ef0
[  184.502148][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  184.502458][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  184.502776][  T229] PKRU: 55555554
[  184.502937][  T229] Call Trace:
[  184.503109][  T229]  <TASK>
[ 184.503220][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.503441][ T229] ? __warn (kernel/panic.c:748) 
[ 184.503600][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.503823][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 184.504049][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 184.504212][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 184.504418][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 184.504658][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.504880][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 184.505171][ T229] ? _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) 
[ 184.505386][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 184.505598][ T229] register_netdevice (net/core/dev.c:11003) 
[ 184.505823][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 184.506109][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 184.506337][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 184.506662][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 184.506972][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 184.507260][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 184.507477][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 184.507799][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 184.508119][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 184.508376][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 184.508639][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 184.508864][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 184.509087][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 184.509262][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 184.509548][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 184.509785][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 184.510017][ T229] ksys_write (fs/read_write.c:731) 
[ 184.510182][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 184.510399][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 184.510609][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  184.510902][  T229] RIP: 0033:0x7fa19e635b77
[ 184.511131][ T229] 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
[  184.511875][  T229] RSP: 002b:00007ffcb9269a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  184.512199][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  184.512514][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  184.512876][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  184.513197][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002
[  184.513503][  T229] R13: 00007fa19e6f1760 R14: 0000000000000002 R15: 00007fa19e6ec9c0
| [  186.221623][  T229] ------------[ cut here ]------------
| [ 186.221981][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  186.222413][  T229] Modules linked in: netdevsim
| [  186.223077][  T229] Tainted: [W]=WARN
[  186.223250][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 186.223551][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.223863][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  186.224694][  T229] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  186.225190][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  186.225540][  T229] RDX: 0000000000000000 RSI: ffff88800ae42c98 RDI: ffff888008af50a8
[  186.225864][  T229] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  186.227181][  T229] R10: ffffffff935ec1e7 R11: ffff888008af45c0 R12: 0000000000000000
[  186.227481][  T229] R13: ffff88800ae42128 R14: ffff88800ae42008 R15: ffff88800ae42000
[  186.227787][  T229] FS:  00007fa19e4f4740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  186.228399][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  186.228695][  T229] CR2: 00007fa19e5ed890 CR3: 000000000bf2a004 CR4: 0000000000772ef0
[  186.229056][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  186.229372][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  186.229723][  T229] PKRU: 55555554
[  186.229886][  T229] Call Trace:
[  186.230068][  T229]  <TASK>
[ 186.230184][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.230412][ T229] ? __warn (kernel/panic.c:748) 
[ 186.230579][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.230819][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 186.231066][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 186.231263][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 186.231472][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 186.231711][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.231925][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 186.232207][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 186.232426][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 186.232656][ T229] register_netdevice (net/core/dev.c:11003) 
[ 186.232864][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 186.233091][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 186.233295][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 186.233553][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 186.233852][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 186.234126][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 186.234343][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 186.234552][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 186.234821][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 186.235032][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 186.235259][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 186.235450][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 186.235658][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 186.235821][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 186.236028][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 186.236226][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 186.236426][ T229] ksys_write (fs/read_write.c:731) 
[ 186.236575][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 186.236886][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 186.237226][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  186.237643][  T229] RIP: 0033:0x7fa19e635b77
[ 186.237871][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  186.238578][  T229] RSP: 002b:00007ffcb9269a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  186.238879][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa19e635b77
[  186.239225][  T229] RDX: 0000000000000002 RSI: 0000561a4369b130 RDI: 0000000000000001
[  186.239540][  T229] RBP: 0000561a4369b130 R08: 0000000000000000 R09: 00007fa19e6a84e0
[  186.239865][  T229] R10: 00007fa19e6a83e0 R11: 0000000000000246 R12: 0000000000000002


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