======================================
| 0
| xx__-> [   12.570978][  T228] ------------[ cut here ]------------
| [ 12.571517][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   12.571969][  T228] Modules linked in: netdevsim
[   12.572632][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.573026][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.573468][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   12.574317][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[   12.574636][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   12.574966][  T228] RDX: 0000000000000000 RSI: ffff88800506ac98 RDI: ffff888009592de8
[   12.575281][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[   12.575598][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[   12.575911][  T228] R13: ffff88800506a128 R14: ffff88800506a008 R15: ffff88800506a000
[   12.576225][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   12.576608][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.576994][  T228] CR2: 000055f7017f647c CR3: 000000000b4a6005 CR4: 0000000000772ef0
[   12.577939][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   12.578448][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   12.578978][  T228] PKRU: 55555554
[   12.579286][  T228] Call Trace:
[   12.579577][  T228]  <TASK>
[ 12.579791][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.580132][ T228] ? __warn (kernel/panic.c:748) 
[ 12.580387][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.580771][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 12.581123][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 12.581382][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 12.581739][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 12.582091][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.582474][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 12.582924][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 12.583305][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 12.583667][ T228] register_netdevice (net/core/dev.c:11003) 
[ 12.584018][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 12.584390][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 12.584712][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 12.585077][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 12.585364][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 12.585663][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 12.585920][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 12.586155][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 12.586421][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 12.586643][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 12.586848][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 12.587074][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 12.587286][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 12.587445][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 12.587664][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 12.587880][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 12.588233][ T228] ksys_write (fs/read_write.c:731) 
[ 12.588479][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 12.588851][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 12.589197][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   12.589448][  T228] RIP: 0033:0x7fd6c8b72b77
[ 12.589673][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   12.590551][  T228] RSP: 002b:00007ffccd018ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   12.591069][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[   12.591612][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[   12.592128][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[   12.592650][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[   12.593109][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  158.022892][  T228] ------------[ cut here ]------------
| [ 158.023133][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  158.023556][  T228] Modules linked in: netdevsim
| [  158.024166][  T228] Tainted: [W]=WARN
[  158.024337][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 158.024599][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.024872][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  158.025830][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  158.026090][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  158.026400][  T228] RDX: 0000000000000000 RSI: ffff888005b6ac98 RDI: ffff888009592de8
[  158.027921][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  158.028288][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  158.028753][  T228] R13: ffff888005b6a128 R14: ffff888005b6a008 R15: ffff888005b6a000
[  158.029057][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  158.029423][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  158.029857][  T228] CR2: 000055f70181b4f8 CR3: 000000000b4a6003 CR4: 0000000000772ef0
[  158.030172][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  158.030469][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  158.030848][  T228] PKRU: 55555554
[  158.031002][  T228] Call Trace:
[  158.031153][  T228]  <TASK>
[ 158.031269][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.031478][ T228] ? __warn (kernel/panic.c:748) 
[ 158.031650][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.031855][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 158.032068][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 158.032225][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 158.032427][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 158.032655][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 158.032868][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 158.033141][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 158.033357][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 158.033590][ T228] register_netdevice (net/core/dev.c:11003) 
[ 158.033809][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 158.034026][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 158.034252][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 158.034522][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 158.034837][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 158.035167][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 158.035439][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 158.035674][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 158.035950][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 158.036168][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 158.036375][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 158.036605][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 158.036820][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 158.036992][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 158.037267][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 158.037502][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 158.037841][ T228] ksys_write (fs/read_write.c:731) 
[ 158.038088][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 158.038437][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 158.038729][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  158.038996][  T228] RIP: 0033:0x7fd6c8b72b77
[ 158.039237][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  158.039986][  T228] RSP: 002b:00007ffccd017768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  158.040329][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  158.040672][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  158.041002][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  158.041340][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  158.041714][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  159.686447][  T228] ------------[ cut here ]------------
| [ 159.686715][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  159.687104][  T228] Modules linked in: netdevsim
| [  159.687691][  T228] Tainted: [W]=WARN
[  159.687833][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 159.688067][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.688327][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  159.689014][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  159.689260][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  159.689563][  T228] RDX: 0000000000000000 RSI: ffff88800912ac98 RDI: ffff888009592de8
[  159.689855][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  159.690144][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  159.690441][  T228] R13: ffff88800912a128 R14: ffff88800912a008 R15: ffff88800912a000
[  159.690731][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  159.691090][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  159.691337][  T228] CR2: 00007ffccd018018 CR3: 000000000b4a6004 CR4: 0000000000772ef0
[  159.691643][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  159.691920][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  159.692204][  T228] PKRU: 55555554
[  159.692343][  T228] Call Trace:
[  159.692482][  T228]  <TASK>
[ 159.692586][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.692806][ T228] ? __warn (kernel/panic.c:748) 
[ 159.692949][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.693147][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 159.693345][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 159.693507][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 159.693716][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 159.693923][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.694135][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 159.694414][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 159.694634][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 159.694875][ T228] register_netdevice (net/core/dev.c:11003) 
[ 159.695074][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 159.695268][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 159.695474][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 159.695735][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 159.696013][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 159.696267][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 159.696492][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 159.696701][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 159.696940][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 159.697142][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 159.697331][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 159.697537][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 159.697736][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 159.697908][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 159.698101][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 159.698337][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 159.698621][ T228] ksys_write (fs/read_write.c:731) 
[ 159.698768][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 159.698965][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 159.699154][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  159.699405][  T228] RIP: 0033:0x7fd6c8b72b77
[ 159.699644][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  159.700324][  T228] RSP: 002b:00007ffccd017768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  159.700620][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  159.700919][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  159.701203][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  159.701488][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  159.701772][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  161.272998][  T228] ------------[ cut here ]------------
| [ 161.273266][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  161.273873][  T228] Modules linked in: netdevsim
| [  161.274553][  T228] Tainted: [W]=WARN
[  161.274712][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 161.275090][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.275385][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  161.276203][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  161.276485][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  161.276873][  T228] RDX: 0000000000000000 RSI: ffff888009852c98 RDI: ffff888009592de8
[  161.277182][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  161.277523][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  161.277880][  T228] R13: ffff888009852128 R14: ffff888009852008 R15: ffff888009852000
[  161.278243][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  161.278660][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  161.278967][  T228] CR2: 00005607a6142928 CR3: 000000000b4a6006 CR4: 0000000000772ef0
[  161.279315][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  161.279635][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  161.280001][  T228] PKRU: 55555554
[  161.280184][  T228] Call Trace:
[  161.280350][  T228]  <TASK>
[ 161.280471][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.280707][ T228] ? __warn (kernel/panic.c:748) 
[ 161.281059][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.281338][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 161.281563][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 161.281752][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 161.282092][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 161.282337][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.282631][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 161.282898][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 161.283122][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 161.283386][ T228] register_netdevice (net/core/dev.c:11003) 
[ 161.283650][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 161.283939][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 161.284201][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 161.284459][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 161.284747][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 161.285018][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.285304][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 161.285518][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 161.285783][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.285981][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 161.286225][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 161.286472][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 161.286696][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 161.286860][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 161.287088][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 161.287371][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 161.287600][ T228] ksys_write (fs/read_write.c:731) 
[ 161.287758][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 161.287972][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 161.288208][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  161.288495][  T228] RIP: 0033:0x7fd6c8b72b77
[ 161.288713][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  161.289475][  T228] RSP: 002b:00007ffccd017768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  161.289782][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  161.290086][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  161.290415][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  161.290722][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  161.291060][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  162.913058][  T228] ------------[ cut here ]------------
| [ 162.913484][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  162.914442][  T228] Modules linked in: netdevsim
| [  162.915182][  T228] Tainted: [W]=WARN
[  162.915376][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 162.915679][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 162.916025][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  162.916955][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  162.917432][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  162.918003][  T228] RDX: 0000000000000000 RSI: ffff88800903ac98 RDI: ffff888009592de8
[  162.918377][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  162.918711][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  162.919062][  T228] R13: ffff88800903a128 R14: ffff88800903a008 R15: ffff88800903a000
[  162.919391][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  162.919779][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  162.920082][  T228] CR2: 000055f701828018 CR3: 000000000b4a6006 CR4: 0000000000772ef0
[  162.920409][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  162.920754][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  162.921144][  T228] PKRU: 55555554
[  162.921331][  T228] Call Trace:
[  162.921520][  T228]  <TASK>
[ 162.921673][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 162.921928][ T228] ? __warn (kernel/panic.c:748) 
[ 162.922132][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 162.922374][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 162.922639][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 162.922837][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 162.923116][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 162.923388][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 162.923649][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 162.923967][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 162.924223][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 162.924461][ T228] register_netdevice (net/core/dev.c:11003) 
[ 162.924763][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 162.925129][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 162.925554][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 162.925913][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 162.926272][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 162.926655][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 162.926985][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 162.927264][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 162.927569][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 162.927885][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 162.928169][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 162.928421][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 162.928729][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 162.928943][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 162.929257][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 162.929498][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 162.929749][ T228] ksys_write (fs/read_write.c:731) 
[ 162.930006][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 162.930270][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 162.930565][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  162.930892][  T228] RIP: 0033:0x7fd6c8b72b77
[ 162.931199][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  162.932006][  T228] RSP: 002b:00007ffccd017768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  162.932394][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  162.932782][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  162.933177][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  162.933511][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  162.933830][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  164.520689][  T228] ------------[ cut here ]------------
| [ 164.521087][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  164.521753][  T228] Modules linked in: netdevsim
| [  164.522702][  T228] Tainted: [W]=WARN
[  164.522954][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 164.523342][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.523817][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  164.524908][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  164.525349][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  164.525874][  T228] RDX: 0000000000000000 RSI: ffff88800d03ac98 RDI: ffff888009592de8
[  164.526343][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  164.526897][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  164.527358][  T228] R13: ffff88800d03a128 R14: ffff88800d03a008 R15: ffff88800d03a000
[  164.527828][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  164.528358][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  164.528773][  T228] CR2: 000055f70181b5e8 CR3: 000000000b4a6002 CR4: 0000000000772ef0
[  164.529259][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  164.529758][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  164.530243][  T228] PKRU: 55555554
[  164.530522][  T228] Call Trace:
[  164.530799][  T228]  <TASK>
[ 164.530984][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.531325][ T228] ? __warn (kernel/panic.c:748) 
[ 164.531617][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.531960][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 164.532315][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 164.532603][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 164.532942][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 164.533307][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.533679][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 164.534106][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 164.534476][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 164.534841][ T228] register_netdevice (net/core/dev.c:11003) 
[ 164.535187][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 164.535571][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 164.535940][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 164.536369][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 164.536832][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 164.537237][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 164.537586][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 164.537934][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 164.538365][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 164.538714][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 164.539038][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 164.539380][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 164.539734][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 164.539997][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 164.540326][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 164.540684][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 164.541030][ T228] ksys_write (fs/read_write.c:731) 
[ 164.541298][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 164.541661][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 164.541991][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  164.542387][  T228] RIP: 0033:0x7fd6c8b72b77
[ 164.542741][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  164.543826][  T228] RSP: 002b:00007ffccd017768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  164.544315][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  164.544817][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  164.545288][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  164.545779][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  164.546250][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  166.195475][  T228] ------------[ cut here ]------------
| [ 166.196305][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  166.197283][  T228] Modules linked in: netdevsim
| [  166.198424][  T228] Tainted: [W]=WARN
[  166.198718][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 166.199124][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.199589][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  166.200795][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  166.201249][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  166.201789][  T228] RDX: 0000000000000000 RSI: ffff88800506ac98 RDI: ffff888009592de8
[  166.202325][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  166.202883][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  166.203254][  T228] R13: ffff88800506a128 R14: ffff88800506a008 R15: ffff88800506a000
[  166.203732][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  166.204128][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  166.204415][  T228] CR2: 000055f701828018 CR3: 000000000b4a6002 CR4: 0000000000772ef0
[  166.204751][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  166.205094][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  166.205431][  T228] PKRU: 55555554
[  166.205618][  T228] Call Trace:
[  166.205797][  T228]  <TASK>
[ 166.205918][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.206147][ T228] ? __warn (kernel/panic.c:748) 
[ 166.206324][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.206585][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 166.206820][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 166.206992][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 166.207212][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 166.207460][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.207705][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 166.207987][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 166.208241][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 166.208488][ T228] register_netdevice (net/core/dev.c:11003) 
[ 166.208731][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 166.208964][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 166.209206][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 166.209500][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 166.209827][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 166.210114][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.210345][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 166.210603][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 166.210887][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.211108][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 166.211330][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 166.211596][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 166.211828][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 166.212012][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 166.212239][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 166.212487][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 166.212732][ T228] ksys_write (fs/read_write.c:731) 
[ 166.212908][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 166.213139][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 166.213384][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  166.213674][  T228] RIP: 0033:0x7fd6c8b72b77
[ 166.213907][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  166.214660][  T228] RSP: 002b:00007ffccd017768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  166.214998][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  166.215319][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  166.215814][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  166.216315][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  166.216860][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  167.832515][  T228] ------------[ cut here ]------------
| [ 167.832796][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  167.833250][  T228] Modules linked in: netdevsim
| [  167.833918][  T228] Tainted: [W]=WARN
[  167.834090][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 167.834362][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.834630][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  167.835414][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  167.835693][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  167.836014][  T228] RDX: 0000000000000000 RSI: ffff888005b6ac98 RDI: ffff888009592de8
[  167.836355][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  167.836700][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  167.837005][  T228] R13: ffff888005b6a128 R14: ffff888005b6a008 R15: ffff888005b6a000
[  167.837347][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  167.837737][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  167.838025][  T228] CR2: 00007ffccd018018 CR3: 000000000b4a6004 CR4: 0000000000772ef0
[  167.838351][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  167.838648][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  167.838984][  T228] PKRU: 55555554
[  167.839157][  T228] Call Trace:
[  167.839316][  T228]  <TASK>
[ 167.839445][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.839712][ T228] ? __warn (kernel/panic.c:748) 
[ 167.839876][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.840115][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 167.840341][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 167.840562][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 167.840815][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 167.841064][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.841300][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 167.841581][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 167.841806][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 167.842047][ T228] register_netdevice (net/core/dev.c:11003) 
[ 167.842290][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 167.842538][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 167.842787][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 167.843083][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 167.843396][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 167.843704][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 167.843936][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 167.844176][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 167.844474][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 167.844712][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 167.845043][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 167.845380][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 167.845745][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 167.846006][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 167.846336][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 167.846711][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 167.847049][ T228] ksys_write (fs/read_write.c:731) 
[ 167.847289][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 167.847653][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 167.847989][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  167.848400][  T228] RIP: 0033:0x7fd6c8b72b77
[ 167.848747][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  167.849936][  T228] RSP: 002b:00007ffccd017768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  167.850439][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  167.850936][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  167.851442][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  167.851930][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  167.852399][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  169.541429][  T228] ------------[ cut here ]------------
| [ 169.541729][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  169.542171][  T228] Modules linked in: netdevsim
| [  169.543605][  T228] Tainted: [W]=WARN
[  169.543822][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 169.544093][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.544376][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  169.545246][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  169.545522][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  169.545928][  T228] RDX: 0000000000000000 RSI: ffff88800912ac98 RDI: ffff888009592de8
[  169.546258][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  169.546691][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  169.547024][  T228] R13: ffff88800912a128 R14: ffff88800912a008 R15: ffff88800912a000
[  169.547352][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  169.547882][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  169.548164][  T228] CR2: 000055f7019b5de8 CR3: 000000000b4a6004 CR4: 0000000000772ef0
[  169.548507][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  169.549038][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  169.549363][  T228] PKRU: 55555554
[  169.549696][  T228] Call Trace:
[  169.549874][  T228]  <TASK>
[ 169.549986][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.550209][ T228] ? __warn (kernel/panic.c:748) 
[ 169.550379][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.550828][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 169.551059][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 169.551233][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 169.551450][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 169.551870][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.552107][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 169.552399][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 169.552781][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 169.553018][ T228] register_netdevice (net/core/dev.c:11003) 
[ 169.553240][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 169.553479][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 169.553728][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 169.553991][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 169.554267][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 169.554553][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 169.554767][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 169.554985][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 169.555240][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 169.555444][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 169.555687][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 169.555898][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 169.556103][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 169.556263][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 169.556468][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 169.556687][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 169.556896][ T228] ksys_write (fs/read_write.c:731) 
[ 169.557049][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 169.557260][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 169.557469][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  169.557728][  T228] RIP: 0033:0x7fd6c8b72b77
[ 169.557939][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  169.558666][  T228] RSP: 002b:00007ffccd017768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  169.558996][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  169.559364][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  169.559843][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  169.560307][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  169.560802][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  171.145494][  T228] ------------[ cut here ]------------
| [ 171.145879][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  171.146501][  T228] Modules linked in: netdevsim
| [  171.147765][  T228] Tainted: [W]=WARN
[  171.148022][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 171.148435][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.148917][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  171.150034][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  171.150434][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  171.150922][  T228] RDX: 0000000000000000 RSI: ffff888009852c98 RDI: ffff888009592de8
[  171.151385][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  171.151870][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  171.152349][  T228] R13: ffff888009852128 R14: ffff888009852008 R15: ffff888009852000
[  171.152843][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  171.153387][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  171.153800][  T228] CR2: 00007fcbd337a000 CR3: 000000000b4a6005 CR4: 0000000000772ef0
[  171.154264][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  171.154738][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  171.155153][  T228] PKRU: 55555554
[  171.155363][  T228] Call Trace:
[  171.155558][  T228]  <TASK>
[ 171.155715][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.156043][ T228] ? __warn (kernel/panic.c:748) 
[ 171.156297][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.156646][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 171.156973][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 171.157220][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 171.157559][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 171.157898][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.158240][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 171.158670][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 171.158997][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 171.159293][ T228] register_netdevice (net/core/dev.c:11003) 
[ 171.159642][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 171.159982][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 171.160311][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 171.160727][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 171.161088][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 171.161492][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 171.161753][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 171.162030][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 171.162418][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 171.162665][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 171.162880][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 171.163104][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 171.163312][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 171.163473][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 171.163689][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 171.163918][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 171.164124][ T228] ksys_write (fs/read_write.c:731) 
[ 171.164280][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 171.164494][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 171.164709][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  171.164965][  T228] RIP: 0033:0x7fd6c8b72b77
[ 171.165175][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  171.166142][  T228] RSP: 002b:00007ffccd017768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  171.166621][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  171.167086][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  171.167565][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  171.168032][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  171.168495][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  172.862523][  T228] ------------[ cut here ]------------
| [ 172.862962][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  172.863642][  T228] Modules linked in: netdevsim
| [  172.865067][  T228] Tainted: [W]=WARN
[  172.865714][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 172.866370][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.867039][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  172.868346][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  172.868937][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  172.869667][  T228] RDX: 0000000000000000 RSI: ffff88800903ac98 RDI: ffff888009592de8
[  172.870436][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  172.871244][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  172.872031][  T228] R13: ffff88800903a128 R14: ffff88800903a008 R15: ffff88800903a000
[  172.872812][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  172.873473][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  172.873910][  T228] CR2: 00007ffccd018018 CR3: 000000000b4a6005 CR4: 0000000000772ef0
[  172.874421][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  172.874938][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  172.875443][  T228] PKRU: 55555554
[  172.875730][  T228] Call Trace:
[  172.875998][  T228]  <TASK>
[ 172.876187][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.876553][ T228] ? __warn (kernel/panic.c:748) 
[ 172.876822][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.877178][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 172.877556][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 172.877832][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 172.878181][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 172.878664][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.878935][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 172.879256][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 172.879522][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 172.879780][ T228] register_netdevice (net/core/dev.c:11003) 
[ 172.880010][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 172.880259][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 172.880518][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 172.880848][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 172.881209][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 172.881510][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 172.881740][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 172.881957][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 172.882231][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 172.882451][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 172.882675][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 172.882897][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 172.883111][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 172.883353][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 172.883684][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 172.883987][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 172.884256][ T228] ksys_write (fs/read_write.c:731) 
[ 172.884501][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 172.884805][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 172.885041][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  172.885325][  T228] RIP: 0033:0x7fd6c8b72b77
[ 172.885557][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  172.886241][  T228] RSP: 002b:00007ffccd017768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  172.886585][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  172.886885][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  172.887174][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  172.887466][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  172.887775][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  177.533604][  T228] ------------[ cut here ]------------
| [ 177.534168][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  177.534862][  T228] Modules linked in: netdevsim
| [  177.535863][  T228] Tainted: [W]=WARN
[  177.536090][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 177.536473][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.536896][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  177.537989][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  177.538427][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  177.538906][  T228] RDX: 0000000000000000 RSI: ffff88800506ac98 RDI: ffff888009592de8
[  177.539350][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  177.539711][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  177.540093][  T228] R13: ffff88800506a128 R14: ffff88800506a008 R15: ffff88800506a000
[  177.540573][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  177.541101][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  177.541482][  T228] CR2: 00005607c2d1a998 CR3: 000000000b4a6001 CR4: 0000000000772ef0
[  177.541952][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  177.542292][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  177.542798][  T228] PKRU: 55555554
[  177.543322][  T228] Call Trace:
[  177.543617][  T228]  <TASK>
[ 177.543779][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.544094][ T228] ? __warn (kernel/panic.c:748) 
[ 177.544330][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.544661][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 177.544979][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 177.545210][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 177.545513][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 177.545866][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 177.546191][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 177.546602][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 177.546924][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 177.547160][ T228] register_netdevice (net/core/dev.c:11003) 
[ 177.547418][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 177.547712][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 177.548063][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 177.548496][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 177.548968][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 177.549416][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 177.549742][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 177.550071][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 177.550475][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 177.550803][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 177.551116][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 177.551431][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 177.551764][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 177.552010][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 177.552329][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 177.552671][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 177.552993][ T228] ksys_write (fs/read_write.c:731) 
[ 177.553236][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 177.553584][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 177.553902][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  177.554281][  T228] RIP: 0033:0x7fd6c8b72b77
[ 177.554623][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  177.555702][  T228] RSP: 002b:00007ffccd016ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  177.556175][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  177.556649][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  177.557240][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  177.557754][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  177.558278][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  179.293131][  T228] ------------[ cut here ]------------
| [ 179.293496][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  179.293968][  T228] Modules linked in: netdevsim
| [  179.294639][  T228] Tainted: [W]=WARN
[  179.294820][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 179.295077][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.295336][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  179.296054][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  179.296312][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  179.296683][  T228] RDX: 0000000000000000 RSI: ffff88800d03ac98 RDI: ffff888009592de8
[  179.296991][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  179.297284][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  179.297591][  T228] R13: ffff88800d03a128 R14: ffff88800d03a008 R15: ffff88800d03a000
[  179.297890][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  179.298253][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  179.298498][  T228] CR2: 00007fa9ef8fca00 CR3: 000000000b4a6005 CR4: 0000000000772ef0
[  179.298993][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  179.299320][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  179.299628][  T228] PKRU: 55555554
[  179.299811][  T228] Call Trace:
[  179.300006][  T228]  <TASK>
[ 179.300154][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.300458][ T228] ? __warn (kernel/panic.c:748) 
[ 179.300703][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.301022][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 179.301339][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 179.301624][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 179.301949][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 179.302297][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 179.302662][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 179.303100][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 179.303432][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 179.303788][ T228] register_netdevice (net/core/dev.c:11003) 
[ 179.304133][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 179.304474][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 179.304853][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 179.305267][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 179.305741][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 179.306185][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 179.306514][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 179.306885][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 179.307326][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 179.307667][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 179.307978][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 179.308308][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 179.308653][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 179.308919][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 179.309249][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 179.309598][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 179.309908][ T228] ksys_write (fs/read_write.c:731) 
[ 179.310157][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 179.310468][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 179.310815][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  179.311214][  T228] RIP: 0033:0x7fd6c8b72b77
[ 179.311579][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  179.312430][  T228] RSP: 002b:00007ffccd016ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  179.312890][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  179.313298][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  179.313650][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  179.313976][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  179.314293][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  181.003929][  T228] ------------[ cut here ]------------
| [ 181.004348][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  181.004795][  T228] Modules linked in: netdevsim
| [  181.005452][  T228] Tainted: [W]=WARN
[  181.005624][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 181.005894][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.006169][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  181.006914][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  181.007189][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  181.007521][  T228] RDX: 0000000000000000 RSI: ffff888005b6ac98 RDI: ffff888009592de8
[  181.007855][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  181.008234][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  181.008849][  T228] R13: ffff888005b6a128 R14: ffff888005b6a008 R15: ffff888005b6a000
[  181.009172][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  181.009553][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  181.009824][  T228] CR2: 000055f701884088 CR3: 000000000b4a6005 CR4: 0000000000772ef0
[  181.010122][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  181.010424][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  181.010733][  T228] PKRU: 55555554
[  181.010891][  T228] Call Trace:
[  181.011088][  T228]  <TASK>
[ 181.011204][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.011536][ T228] ? __warn (kernel/panic.c:748) 
[ 181.011703][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.011914][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 181.012172][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 181.012338][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 181.012595][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 181.012834][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 181.013049][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 181.013326][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 181.013562][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 181.013785][ T228] register_netdevice (net/core/dev.c:11003) 
[ 181.014013][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 181.014248][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 181.014488][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 181.014777][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 181.015070][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 181.015352][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 181.015582][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 181.015807][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 181.016094][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 181.016334][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 181.016557][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 181.016764][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 181.016972][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 181.017138][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 181.017345][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 181.017570][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 181.017786][ T228] ksys_write (fs/read_write.c:731) 
[ 181.017943][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 181.018194][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 181.018403][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  181.018665][  T228] RIP: 0033:0x7fd6c8b72b77
[ 181.018875][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  181.019605][  T228] RSP: 002b:00007ffccd016ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  181.019928][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  181.020261][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  181.020576][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  181.020881][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  181.021178][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  182.734394][  T228] ------------[ cut here ]------------
| [ 182.734783][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  182.735177][  T228] Modules linked in: netdevsim
| [  182.735797][  T228] Tainted: [W]=WARN
[  182.735963][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 182.736236][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.736491][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  182.737178][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  182.737430][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  182.737721][  T228] RDX: 0000000000000000 RSI: ffff888009852c98 RDI: ffff888009592de8
[  182.738029][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  182.738359][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  182.738668][  T228] R13: ffff888009852128 R14: ffff888009852008 R15: ffff888009852000
[  182.738963][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  182.739300][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  182.739553][  T228] CR2: 00007fa9ef8fca00 CR3: 000000000b4a6001 CR4: 0000000000772ef0
[  182.740029][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  182.740310][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  182.740601][  T228] PKRU: 55555554
[  182.740745][  T228] Call Trace:
[  182.740941][  T228]  <TASK>
[ 182.741043][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.741236][ T228] ? __warn (kernel/panic.c:748) 
[ 182.741385][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.741615][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 182.741815][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 182.741962][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 182.742153][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 182.742363][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 182.742599][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 182.742855][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 182.743055][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 182.743252][ T228] register_netdevice (net/core/dev.c:11003) 
[ 182.743448][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 182.743668][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 182.743888][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 182.744152][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 182.744425][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 182.744696][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 182.744901][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 182.745107][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 182.745361][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 182.745576][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 182.745784][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 182.746000][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 182.746204][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 182.746374][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 182.746603][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 182.746842][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 182.747048][ T228] ksys_write (fs/read_write.c:731) 
[ 182.747207][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 182.747409][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 182.747620][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  182.747857][  T228] RIP: 0033:0x7fd6c8b72b77
[ 182.748054][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  182.748770][  T228] RSP: 002b:00007ffccd016ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  182.749065][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  182.749371][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  182.749687][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  182.749980][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  182.750268][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  184.461138][  T228] ------------[ cut here ]------------
| [ 184.461662][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  184.462285][  T228] Modules linked in: netdevsim
| [  184.463242][  T228] Tainted: [W]=WARN
[  184.463488][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 184.463891][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.464294][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  184.465396][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  184.465785][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  184.466233][  T228] RDX: 0000000000000000 RSI: ffff88800912ac98 RDI: ffff888009592de8
[  184.466686][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  184.467141][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  184.467591][  T228] R13: ffff88800912a128 R14: ffff88800912a008 R15: ffff88800912a000
[  184.468078][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  184.468671][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  184.469044][  T228] CR2: 00007fa9ef70c5a0 CR3: 000000000b4a6001 CR4: 0000000000772ef0
[  184.469483][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  184.469930][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  184.470631][  T228] PKRU: 55555554
[  184.470866][  T228] Call Trace:
[  184.471103][  T228]  <TASK>
[ 184.471256][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.471580][ T228] ? __warn (kernel/panic.c:748) 
[ 184.471814][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.472116][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 184.472424][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 184.472667][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 184.472971][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 184.473296][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 184.473626][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 184.474007][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 184.474339][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 184.474665][ T228] register_netdevice (net/core/dev.c:11003) 
[ 184.474978][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 184.475306][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 184.475650][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 184.476049][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 184.476471][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 184.476886][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 184.477195][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 184.477516][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 184.477922][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 184.478241][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 184.478562][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 184.478871][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 184.479201][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 184.479445][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 184.479775][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 184.480091][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 184.480414][ T228] ksys_write (fs/read_write.c:731) 
[ 184.480671][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 184.480999][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 184.481305][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  184.481691][  T228] RIP: 0033:0x7fd6c8b72b77
[ 184.481987][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  184.483043][  T228] RSP: 002b:00007ffccd016ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  184.483501][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  184.483959][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  184.484394][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  184.484851][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  184.485294][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  186.135556][  T228] ------------[ cut here ]------------
| [ 186.135959][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  186.136582][  T228] Modules linked in: netdevsim
| [  186.137298][  T228] Tainted: [W]=WARN
[  186.137471][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 186.138729][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.139058][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  186.139854][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  186.140157][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  186.140512][  T228] RDX: 0000000000000000 RSI: ffff88800903ac98 RDI: ffff888009592de8
[  186.140875][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  186.141226][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  186.141585][  T228] R13: ffff88800903a128 R14: ffff88800903a008 R15: ffff88800903a000
[  186.141936][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  186.142348][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  186.142661][  T228] CR2: 00005607a610c630 CR3: 000000000b4a6002 CR4: 0000000000772ef0
[  186.143017][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  186.143373][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  186.143729][  T228] PKRU: 55555554
[  186.143919][  T228] Call Trace:
[  186.144104][  T228]  <TASK>
[ 186.144235][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.144478][ T228] ? __warn (kernel/panic.c:748) 
[ 186.144679][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.144928][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 186.145175][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 186.145364][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 186.145619][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 186.145876][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.146134][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 186.146448][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 186.146712][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 186.146960][ T228] register_netdevice (net/core/dev.c:11003) 
[ 186.147209][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 186.147460][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 186.147735][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 186.148046][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 186.148386][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 186.148706][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 186.148985][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 186.149235][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 186.149555][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 186.149796][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 186.150037][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 186.150280][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 186.150524][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 186.150740][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 186.150978][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 186.151233][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 186.151485][ T228] ksys_write (fs/read_write.c:731) 
[ 186.151692][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 186.151944][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 186.152197][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  186.152510][  T228] RIP: 0033:0x7fd6c8b72b77
[ 186.152773][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  186.153577][  T228] RSP: 002b:00007ffccd016ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  186.153945][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  186.154306][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  186.154681][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  186.155040][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  186.155384][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  187.802565][  T228] ------------[ cut here ]------------
| [ 187.802969][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  187.803458][  T228] Modules linked in: netdevsim
| [  187.804154][  T228] Tainted: [W]=WARN
[  187.804327][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 187.804615][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 187.804911][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  187.805696][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  187.805984][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  187.806318][  T228] RDX: 0000000000000000 RSI: ffff88800506ac98 RDI: ffff888009592de8
[  187.806661][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  187.807000][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  187.807337][  T228] R13: ffff88800506a128 R14: ffff88800506a008 R15: ffff88800506a000
[  187.807753][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  187.808171][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  187.808463][  T228] CR2: 00007fd6c8b2a890 CR3: 000000000b4a6005 CR4: 0000000000772ef0
[  187.808817][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  187.809402][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  187.809753][  T228] PKRU: 55555554
[  187.809929][  T228] Call Trace:
[  187.810109][  T228]  <TASK>
[ 187.810226][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 187.810464][ T228] ? __warn (kernel/panic.c:748) 
[ 187.810650][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 187.810879][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 187.811113][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 187.811287][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 187.811515][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 187.811767][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 187.812004][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 187.812296][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 187.812541][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 187.812777][ T228] register_netdevice (net/core/dev.c:11003) 
[ 187.813012][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 187.813250][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 187.813494][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 187.813802][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 187.814113][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 187.814405][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 187.814640][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 187.814876][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 187.815167][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 187.815393][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 187.815628][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 187.815857][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 187.816089][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 187.816267][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 187.816494][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 187.816757][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 187.816955][ T228] ksys_write (fs/read_write.c:731) 
[ 187.817103][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 187.817304][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 187.817503][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  187.817741][  T228] RIP: 0033:0x7fd6c8b72b77
[ 187.817940][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  187.818631][  T228] RSP: 002b:00007ffccd016ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  187.818997][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  187.819341][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  187.819683][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  187.820010][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  187.820335][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  189.539993][  T228] ------------[ cut here ]------------
| [ 189.540490][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  189.541851][  T228] Modules linked in: netdevsim
| [  189.542875][  T228] Tainted: [W]=WARN
[  189.543138][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 189.543523][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 189.543921][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  189.545023][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  189.545420][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  189.545901][  T228] RDX: 0000000000000000 RSI: ffff88800d03ac98 RDI: ffff888009592de8
[  189.546385][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  189.546897][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  189.547360][  T228] R13: ffff88800d03a128 R14: ffff88800d03a008 R15: ffff88800d03a000
[  189.547858][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  189.548737][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  189.549138][  T228] CR2: 000055f70187a408 CR3: 000000000b4a6003 CR4: 0000000000772ef0
[  189.549550][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  189.549878][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  189.550253][  T228] PKRU: 55555554
[  189.550476][  T228] Call Trace:
[  189.550736][  T228]  <TASK>
[ 189.550907][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 189.551232][ T228] ? __warn (kernel/panic.c:748) 
[ 189.551481][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 189.551827][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 189.552130][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 189.552372][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 189.552706][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 189.553056][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 189.553402][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 189.553827][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 189.554167][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 189.554501][ T228] register_netdevice (net/core/dev.c:11003) 
[ 189.554848][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 189.555193][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 189.555565][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 189.555984][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 189.556436][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 189.556880][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 189.557209][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 189.557569][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 189.558045][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 189.558380][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 189.558723][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 189.559050][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 189.559381][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 189.559652][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 189.559964][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 189.560250][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 189.560485][ T228] ksys_write (fs/read_write.c:731) 
[ 189.560695][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 189.560937][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 189.561215][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  189.561632][  T228] RIP: 0033:0x7fd6c8b72b77
[ 189.561979][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  189.563162][  T228] RSP: 002b:00007ffccd016ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  189.563682][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  189.564128][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  189.564589][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  189.565069][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  189.565512][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  191.242596][  T228] ------------[ cut here ]------------
| [ 191.243017][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  191.243470][  T228] Modules linked in: netdevsim
| [  191.244167][  T228] Tainted: [W]=WARN
[  191.244326][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 191.244636][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.244913][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  191.245826][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  191.246140][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  191.246452][  T228] RDX: 0000000000000000 RSI: ffff888005b6ac98 RDI: ffff888009592de8
[  191.246900][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  191.247239][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  191.247580][  T228] R13: ffff888005b6a128 R14: ffff888005b6a008 R15: ffff888005b6a000
[  191.247940][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  191.248351][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  191.248632][  T228] CR2: 00007fa9ef70c5a0 CR3: 000000000b4a6003 CR4: 0000000000772ef0
[  191.248957][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  191.249275][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  191.249596][  T228] PKRU: 55555554
[  191.249754][  T228] Call Trace:
[  191.249928][  T228]  <TASK>
[ 191.250406][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.250640][ T228] ? __warn (kernel/panic.c:748) 
[ 191.250817][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.251057][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 191.251297][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 191.251512][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 191.251737][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 191.251981][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 191.252203][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 191.252490][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 191.252735][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 191.252977][ T228] register_netdevice (net/core/dev.c:11003) 
[ 191.253193][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 191.253421][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 191.253690][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 191.253965][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 191.254304][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 191.254599][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 191.254820][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 191.255094][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 191.255400][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 191.255639][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 191.255863][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 191.256082][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 191.256297][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 191.256495][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 191.256725][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 191.256950][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 191.257166][ T228] ksys_write (fs/read_write.c:731) 
[ 191.257333][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 191.257572][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 191.257789][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  191.258047][  T228] RIP: 0033:0x7fd6c8b72b77
[ 191.258280][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  191.259047][  T228] RSP: 002b:00007ffccd016ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  191.259392][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  191.259747][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  191.260087][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  191.260453][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002
[  191.260820][  T228] R13: 00007fd6c8c2e760 R14: 0000000000000002 R15: 00007fd6c8c299c0
| [  192.987149][  T228] ------------[ cut here ]------------
| [ 192.987619][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  192.988069][  T228] Modules linked in: netdevsim
| [  192.988767][  T228] Tainted: [W]=WARN
[  192.988942][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 192.989227][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 192.989558][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  192.990359][  T228] RSP: 0018:ffffc90000aa7910 EFLAGS: 00010246
[  192.990700][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  192.991020][  T228] RDX: 0000000000000000 RSI: ffff888009852c98 RDI: ffff888009592de8
[  192.991370][  T228] RBP: ffffffff8ef23440 R08: 0000000000000000 R09: fffffbfff19bd83c
[  192.991697][  T228] R10: ffffffff8cdec1e7 R11: ffff888009592300 R12: 0000000000000000
[  192.992017][  T228] R13: ffff888009852128 R14: ffff888009852008 R15: ffff888009852000
[  192.992340][  T228] FS:  00007fd6c8a31740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  192.992809][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  192.993078][  T228] CR2: 00007fd6c8b2a890 CR3: 000000000b4a6001 CR4: 0000000000772ef0
[  192.993418][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  192.993828][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  192.994152][  T228] PKRU: 55555554
[  192.994325][  T228] Call Trace:
[  192.994485][  T228]  <TASK>
[ 192.994684][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 192.994902][ T228] ? __warn (kernel/panic.c:748) 
[ 192.995069][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 192.995303][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 192.995621][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 192.995788][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 192.996004][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 192.996229][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 192.996749][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 192.997054][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 192.997306][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 192.997675][ T228] register_netdevice (net/core/dev.c:11003) 
[ 192.998015][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 192.998387][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 192.998967][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 192.999417][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 193.000074][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 193.000713][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 193.001060][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 193.001415][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 193.001863][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 193.002205][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 193.002570][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 193.002904][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 193.003247][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 193.003509][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 193.003879][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 193.004228][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 193.004599][ T228] ksys_write (fs/read_write.c:731) 
[ 193.004857][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 193.005241][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 193.005596][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  193.006014][  T228] RIP: 0033:0x7fd6c8b72b77
[ 193.006343][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  193.007494][  T228] RSP: 002b:00007ffccd016ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  193.008011][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd6c8b72b77
[  193.008593][  T228] RDX: 0000000000000002 RSI: 000055f7019df130 RDI: 0000000000000001
[  193.009065][  T228] RBP: 000055f7019df130 R08: 0000000000000000 R09: 00007fd6c8be54e0
[  193.009560][  T228] R10: 00007fd6c8be53e0 R11: 0000000000000246 R12: 0000000000000002


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