======================================
| 0
| xx__-> [   11.323032][  T229] ------------[ cut here ]------------
| [ 11.323735][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   11.324433][  T229] Modules linked in: netdevsim
[   11.326623][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.327023][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.327467][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   11.328641][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[   11.329068][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.329576][  T229] RDX: 0000000000000000 RSI: ffff888009d9ac98 RDI: ffff88800bab0b28
[   11.330091][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[   11.330601][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[   11.331098][  T229] R13: ffff888009d9a128 R14: ffff888009d9a008 R15: ffff888009d9a000
[   11.331600][  T229] FS:  00007ff621760740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   11.332195][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.332740][  T229] CR2: 0000563cbf1c847c CR3: 0000000008c22004 CR4: 0000000000772ef0
[   11.333262][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.333766][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.334276][  T229] PKRU: 55555554
[   11.334545][  T229] Call Trace:
[   11.334807][  T229]  <TASK>
[ 11.334988][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.335353][ T229] ? __warn (kernel/panic.c:748) 
[ 11.335608][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.335936][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.336288][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.336545][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.336884][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.337251][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.337609][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.338037][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 11.338401][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.338733][ T229] register_netdevice (net/core/dev.c:11003) 
[ 11.339089][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.339454][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.339815][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.340262][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.340722][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 11.341177][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.341514][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 11.341868][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 11.342331][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.342647][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 11.342993][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 11.343364][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 11.343717][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 11.343997][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 11.344355][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.344701][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.345035][ T229] ksys_write (fs/read_write.c:731) 
[ 11.345309][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 11.345652][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.345987][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.346403][  T229] RIP: 0033:0x7ff6218a1b77
[ 11.346747][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   11.347853][  T229] RSP: 002b:00007ffc3462d1b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   11.348343][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[   11.348851][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[   11.349363][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[   11.349867][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[   11.350399][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  142.139482][  T229] ------------[ cut here ]------------
| [ 142.139822][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  142.140232][  T229] Modules linked in: netdevsim
| [  142.140817][  T229] Tainted: [W]=WARN
[  142.140982][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 142.141277][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.141546][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  142.142209][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  142.142457][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  142.142742][  T229] RDX: 0000000000000000 RSI: ffff888004fbac98 RDI: ffff88800bab0b28
[  142.143033][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  142.143328][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  142.143618][  T229] R13: ffff888004fba128 R14: ffff888004fba008 R15: ffff888004fba000
[  142.143902][  T229] FS:  00007ff621760740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  142.144239][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  142.144490][  T229] CR2: 0000563cbf1ed4f8 CR3: 0000000008c22001 CR4: 0000000000772ef0
[  142.144779][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  142.145087][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  142.145425][  T229] PKRU: 55555554
[  142.145581][  T229] Call Trace:
[  142.145735][  T229]  <TASK>
[ 142.145843][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.146051][ T229] ? __warn (kernel/panic.c:748) 
[ 142.146246][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.146450][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 142.146657][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 142.146815][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 142.147022][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 142.147269][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.147511][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 142.147761][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 142.147969][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 142.148187][ T229] register_netdevice (net/core/dev.c:11003) 
[ 142.148392][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 142.148599][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 142.148818][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 142.149073][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 142.149395][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 142.149657][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 142.149859][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 142.150067][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 142.150325][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 142.150523][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 142.150722][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 142.150930][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 142.151141][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 142.151306][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 142.151504][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 142.151732][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 142.151937][ T229] ksys_write (fs/read_write.c:731) 
[ 142.152101][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 142.152324][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 142.152528][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  142.152769][  T229] RIP: 0033:0x7ff6218a1b77
[ 142.152974][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  142.153696][  T229] RSP: 002b:00007ffc3462be48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  142.153991][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  142.154286][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  142.154572][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  142.154859][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  142.155159][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  143.746966][  T229] ------------[ cut here ]------------
| [ 143.747259][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  143.747670][  T229] Modules linked in: netdevsim
| [  143.748310][  T229] Tainted: [W]=WARN
[  143.748469][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 143.748722][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 143.748980][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  143.749756][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  143.750051][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  143.750436][  T229] RDX: 0000000000000000 RSI: ffff8880049aac98 RDI: ffff88800bab0b28
[  143.750724][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  143.751012][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  143.751341][  T229] R13: ffff8880049aa128 R14: ffff8880049aa008 R15: ffff8880049aa000
[  143.751646][  T229] FS:  00007ff621760740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  143.751985][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  143.752261][  T229] CR2: 0000563cbf1c847c CR3: 0000000008c22002 CR4: 0000000000772ef0
[  143.752551][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  143.752840][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  143.753155][  T229] PKRU: 55555554
[  143.753313][  T229] Call Trace:
[  143.753466][  T229]  <TASK>
[ 143.753583][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 143.753786][ T229] ? __warn (kernel/panic.c:748) 
[ 143.753943][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 143.754171][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 143.754382][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 143.754546][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 143.754748][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 143.754966][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 143.755221][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 143.755479][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 143.755683][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 143.755891][ T229] register_netdevice (net/core/dev.c:11003) 
[ 143.756101][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 143.756347][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 143.756564][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 143.756827][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 143.757099][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 143.757382][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 143.757595][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 143.757805][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 143.758061][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 143.758287][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 143.758490][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 143.758691][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 143.758896][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 143.759060][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 143.759306][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 143.759529][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 143.759740][ T229] ksys_write (fs/read_write.c:731) 
[ 143.759898][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 143.760133][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 143.760345][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  143.760593][  T229] RIP: 0033:0x7ff6218a1b77
[ 143.760797][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  143.761476][  T229] RSP: 002b:00007ffc3462be48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  143.761781][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  143.762072][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  143.762386][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  143.762670][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  143.762955][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  145.224947][  T229] ------------[ cut here ]------------
| [ 145.225318][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  145.225724][  T229] Modules linked in: netdevsim
| [  145.226353][  T229] Tainted: [W]=WARN
[  145.226510][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 145.226761][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 145.227012][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  145.227683][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  145.227934][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  145.228281][  T229] RDX: 0000000000000000 RSI: ffff88800b2a2c98 RDI: ffff88800bab0b28
[  145.228570][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  145.228888][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  145.229190][  T229] R13: ffff88800b2a2128 R14: ffff88800b2a2008 R15: ffff88800b2a2000
[  145.229478][  T229] FS:  00007ff621760740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  145.229838][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  145.230095][  T229] CR2: 0000563cbf1c847c CR3: 0000000008c22002 CR4: 0000000000772ef0
[  145.230405][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  145.230710][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  145.231016][  T229] PKRU: 55555554
[  145.231190][  T229] Call Trace:
[  145.231358][  T229]  <TASK>
[ 145.231471][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 145.231686][ T229] ? __warn (kernel/panic.c:748) 
[ 145.231858][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 145.232066][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 145.232291][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 145.232452][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 145.232652][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 145.232880][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 145.233106][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 145.233377][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 145.233599][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 145.233833][ T229] register_netdevice (net/core/dev.c:11003) 
[ 145.234053][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 145.234312][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 145.234549][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 145.234810][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 145.235084][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 145.235355][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 145.235561][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 145.235774][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 145.236030][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 145.236277][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 145.236484][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 145.236702][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 145.236921][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 145.237087][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 145.237307][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 145.237522][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 145.237751][ T229] ksys_write (fs/read_write.c:731) 
[ 145.237925][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 145.238178][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 145.238396][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  145.238654][  T229] RIP: 0033:0x7ff6218a1b77
[ 145.238864][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  145.239561][  T229] RSP: 002b:00007ffc3462be48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  145.239856][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  145.240188][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  145.240483][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  145.240788][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  145.241078][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  146.811424][  T229] ------------[ cut here ]------------
| [ 146.811720][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  146.812132][  T229] Modules linked in: netdevsim
| [  146.812728][  T229] Tainted: [W]=WARN
[  146.812884][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 146.813143][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 146.813404][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  146.814110][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  146.814378][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  146.814671][  T229] RDX: 0000000000000000 RSI: ffff88800b05ac98 RDI: ffff88800bab0b28
[  146.814962][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  146.815382][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  146.815687][  T229] R13: ffff88800b05a128 R14: ffff88800b05a008 R15: ffff88800b05a000
[  146.815983][  T229] FS:  00007ff621760740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  146.816328][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  146.816575][  T229] CR2: 0000563cbf1fa018 CR3: 0000000008c22003 CR4: 0000000000772ef0
[  146.816868][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  146.817172][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  146.817462][  T229] PKRU: 55555554
[  146.817620][  T229] Call Trace:
[  146.817780][  T229]  <TASK>
[ 146.817889][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 146.818094][ T229] ? __warn (kernel/panic.c:748) 
[ 146.818265][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 146.818484][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 146.818696][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 146.818853][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 146.819058][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 146.819280][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 146.819490][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 146.819740][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 146.819951][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 146.820168][ T229] register_netdevice (net/core/dev.c:11003) 
[ 146.820379][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 146.820590][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 146.820804][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 146.821075][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 146.821360][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 146.821627][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 146.821833][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 146.822042][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 146.822308][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 146.822505][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 146.822709][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 146.822913][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 146.823137][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 146.823307][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 146.823510][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 146.823722][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 146.823932][ T229] ksys_write (fs/read_write.c:731) 
[ 146.824091][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 146.824314][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 146.824519][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  146.824759][  T229] RIP: 0033:0x7ff6218a1b77
[ 146.824964][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  146.825634][  T229] RSP: 002b:00007ffc3462be48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  146.825927][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  146.826225][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  146.826512][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  146.826797][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  146.827099][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  148.306382][  T229] ------------[ cut here ]------------
| [ 148.306672][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  148.307069][  T229] Modules linked in: netdevsim
| [  148.307730][  T229] Tainted: [W]=WARN
[  148.307901][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 148.308172][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 148.308442][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  148.309150][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  148.309419][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  148.309719][  T229] RDX: 0000000000000000 RSI: ffff888008f0ac98 RDI: ffff88800bab0b28
[  148.310036][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  148.310364][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  148.310675][  T229] R13: ffff888008f0a128 R14: ffff888008f0a008 R15: ffff888008f0a000
[  148.310980][  T229] FS:  00007ff621760740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  148.311348][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  148.311626][  T229] CR2: 0000563cbf1ed5e8 CR3: 0000000008c22003 CR4: 0000000000772ef0
[  148.311933][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  148.312260][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  148.312568][  T229] PKRU: 55555554
[  148.312731][  T229] Call Trace:
[  148.312888][  T229]  <TASK>
[ 148.313001][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 148.313221][ T229] ? __warn (kernel/panic.c:748) 
[ 148.313391][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 148.313611][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 148.313837][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 148.314007][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 148.314232][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 148.314470][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 148.314696][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 148.314959][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 148.315205][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 148.315435][ T229] register_netdevice (net/core/dev.c:11003) 
[ 148.315646][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 148.315865][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 148.316095][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 148.316378][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 148.316659][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 148.316920][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 148.317155][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 148.317375][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 148.317638][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 148.317840][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 148.318048][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 148.318305][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 148.318524][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 148.318703][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 148.318913][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 148.319178][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 148.319413][ T229] ksys_write (fs/read_write.c:731) 
[ 148.319581][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 148.319802][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 148.320043][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  148.320322][  T229] RIP: 0033:0x7ff6218a1b77
[ 148.320539][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  148.321216][  T229] RSP: 002b:00007ffc3462be48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  148.321525][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  148.321861][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  148.322177][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  148.322509][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  148.322804][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  149.877932][  T229] ------------[ cut here ]------------
| [ 149.878237][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  149.878619][  T229] Modules linked in: netdevsim
| [  149.879209][  T229] Tainted: [W]=WARN
[  149.879354][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 149.879584][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 149.879844][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  149.880503][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  149.880738][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  149.881113][  T229] RDX: 0000000000000000 RSI: ffff888009d9ac98 RDI: ffff88800bab0b28
[  149.881416][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  149.881716][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  149.882001][  T229] R13: ffff888009d9a128 R14: ffff888009d9a008 R15: ffff888009d9a000
[  149.882297][  T229] FS:  00007ff621760740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  149.882622][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  149.882869][  T229] CR2: 00007fe6d06ff370 CR3: 0000000008c22002 CR4: 0000000000772ef0
[  149.883170][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  149.883449][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  149.883733][  T229] PKRU: 55555554
[  149.883888][  T229] Call Trace:
[  149.884033][  T229]  <TASK>
[ 149.884142][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 149.884333][ T229] ? __warn (kernel/panic.c:748) 
[ 149.884478][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 149.884667][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 149.884876][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 149.885023][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 149.885222][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 149.885424][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 149.885621][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 149.885878][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 149.886070][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 149.886297][ T229] register_netdevice (net/core/dev.c:11003) 
[ 149.886500][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 149.886697][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 149.886912][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 149.887262][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 149.887529][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 149.887784][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 149.887976][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 149.888254][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 149.888498][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 149.888683][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 149.888885][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 149.889102][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 149.889311][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 149.889464][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 149.889668][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 149.889879][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 149.890076][ T229] ksys_write (fs/read_write.c:731) 
[ 149.890285][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 149.890485][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 149.890676][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  149.890929][  T229] RIP: 0033:0x7ff6218a1b77
[ 149.891137][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  149.891820][  T229] RSP: 002b:00007ffc3462be48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  149.892112][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  149.892435][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  149.892720][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  149.893020][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  149.893318][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  151.401089][  T229] ------------[ cut here ]------------
| [ 151.401341][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  151.401754][  T229] Modules linked in: netdevsim
| [  151.403603][  T229] Tainted: [W]=WARN
[  151.403759][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 151.404009][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 151.404392][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  151.405097][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  151.405375][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  151.405678][  T229] RDX: 0000000000000000 RSI: ffff888004fbac98 RDI: ffff88800bab0b28
[  151.405978][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  151.406291][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  151.406602][  T229] R13: ffff888004fba128 R14: ffff888004fba008 R15: ffff888004fba000
[  151.406906][  T229] FS:  00007ff621760740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  151.407268][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  151.407530][  T229] CR2: 0000563cbf1c847c CR3: 0000000008c22002 CR4: 0000000000772ef0
[  151.407837][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  151.408145][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  151.408448][  T229] PKRU: 55555554
[  151.408602][  T229] Call Trace:
[  151.408754][  T229]  <TASK>
[ 151.408859][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 151.409061][ T229] ? __warn (kernel/panic.c:748) 
[ 151.409231][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 151.409449][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 151.409661][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 151.409815][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 151.410015][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 151.410243][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 151.410456][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 151.410713][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 151.410921][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 151.411137][ T229] register_netdevice (net/core/dev.c:11003) 
[ 151.411345][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 151.411571][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 151.411792][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 151.412055][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 151.412340][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 151.412601][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 151.412807][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 151.413017][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 151.413284][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 151.413486][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 151.413690][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 151.413894][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 151.414105][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 151.414282][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 151.414486][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 151.414700][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 151.414914][ T229] ksys_write (fs/read_write.c:731) 
[ 151.415068][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 151.415291][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 151.415503][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  151.415755][  T229] RIP: 0033:0x7ff6218a1b77
[ 151.415966][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  151.416675][  T229] RSP: 002b:00007ffc3462be48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  151.416981][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  151.417288][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  151.417585][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  151.417880][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  151.418185][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  152.927549][  T229] ------------[ cut here ]------------
| [ 152.927867][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  152.929157][  T229] Modules linked in: netdevsim
| [  152.929804][  T229] Tainted: [W]=WARN
[  152.929969][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 152.930249][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 152.930521][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  152.931272][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  152.931554][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  152.931876][  T229] RDX: 0000000000000000 RSI: ffff8880049aac98 RDI: ffff88800bab0b28
[  152.932214][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  152.932507][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  152.932797][  T229] R13: ffff8880049aa128 R14: ffff8880049aa008 R15: ffff8880049aa000
[  152.933086][  T229] FS:  00007ff621760740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  152.933434][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  152.933684][  T229] CR2: 0000563cbf387de8 CR3: 0000000008c22004 CR4: 0000000000772ef0
[  152.933973][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  152.934272][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  152.934564][  T229] PKRU: 55555554
[  152.934712][  T229] Call Trace:
[  152.934860][  T229]  <TASK>
[ 152.934969][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 152.935174][ T229] ? __warn (kernel/panic.c:748) 
[ 152.935327][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 152.935529][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 152.935745][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 152.935902][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 152.936106][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 152.936345][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 152.936561][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 152.936826][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 152.937042][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 152.937267][ T229] register_netdevice (net/core/dev.c:11003) 
[ 152.937485][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 152.937704][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 152.937936][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 152.938216][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 152.938501][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 152.938770][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 152.938984][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 152.939210][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 152.939481][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 152.939688][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 152.939897][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 152.940109][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 152.940336][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 152.940501][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 152.940715][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 152.940933][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 152.941160][ T229] ksys_write (fs/read_write.c:731) 
[ 152.941322][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 152.941546][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 152.941757][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  152.942011][  T229] RIP: 0033:0x7ff6218a1b77
[ 152.942234][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  152.942953][  T229] RSP: 002b:00007ffc3462be48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  152.943275][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  152.943583][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  152.943893][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  152.944209][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  152.944515][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  154.412719][  T229] ------------[ cut here ]------------
| [ 154.412964][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  154.413388][  T229] Modules linked in: netdevsim
| [  154.414019][  T229] Tainted: [W]=WARN
[  154.414187][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 154.414448][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 154.414713][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  154.415438][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  154.415700][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  154.416011][  T229] RDX: 0000000000000000 RSI: ffff88800b2a2c98 RDI: ffff88800bab0b28
[  154.416333][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  154.416636][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  154.416938][  T229] R13: ffff88800b2a2128 R14: ffff88800b2a2008 R15: ffff88800b2a2000
[  154.417249][  T229] FS:  00007ff621760740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  154.417609][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  154.417867][  T229] CR2: 00007ff28dde3000 CR3: 0000000008c22002 CR4: 0000000000772ef0
[  154.418184][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  154.418484][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  154.418788][  T229] PKRU: 55555554
[  154.418943][  T229] Call Trace:
[  154.419095][  T229]  <TASK>
[ 154.419214][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 154.419427][ T229] ? __warn (kernel/panic.c:748) 
[ 154.419587][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 154.419799][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 154.420012][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 154.420183][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 154.420393][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 154.420616][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 154.420837][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 154.421106][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 154.421335][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 154.421553][ T229] register_netdevice (net/core/dev.c:11003) 
[ 154.421768][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 154.421995][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 154.422235][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 154.422511][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 154.422793][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 154.423056][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 154.423269][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 154.423487][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 154.423751][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 154.423955][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 154.424171][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 154.424374][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 154.424579][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 154.424740][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 154.424946][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 154.425172][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 154.425386][ T229] ksys_write (fs/read_write.c:731) 
[ 154.425545][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 154.425758][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 154.425963][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  154.426239][  T229] RIP: 0033:0x7ff6218a1b77
[ 154.426451][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  154.427161][  T229] RSP: 002b:00007ffc3462be48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  154.427477][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  154.427790][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  154.428101][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  154.428420][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  154.428728][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  155.931914][  T229] ------------[ cut here ]------------
| [ 155.933485][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  155.933971][  T229] Modules linked in: netdevsim
| [  155.934598][  T229] Tainted: [W]=WARN
[  155.934759][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 155.935017][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.935284][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  155.935958][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  155.936222][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  155.936511][  T229] RDX: 0000000000000000 RSI: ffff88800b05ac98 RDI: ffff88800bab0b28
[  155.936798][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  155.937096][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  155.937402][  T229] R13: ffff88800b05a128 R14: ffff88800b05a008 R15: ffff88800b05a000
[  155.937694][  T229] FS:  00007ff621760740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  155.938026][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  155.938311][  T229] CR2: 0000563cbf1c847c CR3: 0000000008c22004 CR4: 0000000000772ef0
[  155.938608][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  155.938903][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  155.939211][  T229] PKRU: 55555554
[  155.939368][  T229] Call Trace:
[  155.939522][  T229]  <TASK>
[ 155.939635][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.939838][ T229] ? __warn (kernel/panic.c:748) 
[ 155.940005][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.940221][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 155.940429][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 155.940593][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 155.940796][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 155.941011][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 155.941236][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 155.941498][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 155.941715][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 155.941921][ T229] register_netdevice (net/core/dev.c:11003) 
[ 155.942144][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 155.942358][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 155.942579][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 155.942837][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 155.943107][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 155.943379][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 155.943595][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 155.943807][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 155.944065][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 155.944279][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 155.944482][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 155.944685][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 155.944892][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 155.945066][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 155.945295][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 155.945507][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 155.945721][ T229] ksys_write (fs/read_write.c:731) 
[ 155.945882][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 155.946098][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 155.946325][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  155.946577][  T229] RIP: 0033:0x7ff6218a1b77
[ 155.946790][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  155.947471][  T229] RSP: 002b:00007ffc3462be48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  155.947796][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  155.948101][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  155.948403][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  155.948702][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  155.948994][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  159.914178][  T229] ------------[ cut here ]------------
| [ 159.914485][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  159.914881][  T229] Modules linked in: netdevsim
| [  159.915809][  T229] Tainted: [W]=WARN
[  159.915959][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 159.916220][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.916482][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  159.917188][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  159.917442][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  159.917742][  T229] RDX: 0000000000000000 RSI: ffff888009d9ac98 RDI: ffff88800bab0b28
[  159.918036][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  159.918338][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  159.918637][  T229] R13: ffff888009d9a128 R14: ffff888009d9a008 R15: ffff888009d9a000
[  159.918936][  T229] FS:  00007ff621760740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  159.919286][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  159.919538][  T229] CR2: 00005639e7ae6e98 CR3: 0000000008c22006 CR4: 0000000000772ef0
[  159.919834][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  159.920141][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  159.920433][  T229] PKRU: 55555554
[  159.920585][  T229] Call Trace:
[  159.920736][  T229]  <TASK>
[ 159.920841][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.921039][ T229] ? __warn (kernel/panic.c:748) 
[ 159.921210][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.921413][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 159.921633][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 159.921787][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 159.921984][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 159.922209][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 159.922421][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 159.922672][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 159.922878][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 159.923083][ T229] register_netdevice (net/core/dev.c:11003) 
[ 159.923301][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 159.923513][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 159.923729][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 159.923986][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 159.924269][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 159.924530][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 159.924732][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 159.924944][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 159.925211][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 159.925410][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 159.925611][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 159.925812][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 159.926016][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 159.926190][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 159.926391][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 159.926603][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 159.926806][ T229] ksys_write (fs/read_write.c:731) 
[ 159.926954][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 159.927172][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 159.927369][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  159.927617][  T229] RIP: 0033:0x7ff6218a1b77
[ 159.927814][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  159.928483][  T229] RSP: 002b:00007ffc3462b5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  159.928775][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  159.929064][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  159.929357][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  159.929648][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  159.929935][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  161.579603][  T229] ------------[ cut here ]------------
| [ 161.580177][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  161.580609][  T229] Modules linked in: netdevsim
| [  161.582286][  T229] Tainted: [W]=WARN
[  161.582589][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 161.582910][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.583203][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  161.583919][  T229] RSP: 0000:ffffc90000ae7910 EFLAGS: 00010246
[  161.584208][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  161.584540][  T229] RDX: 0000000000000000 RSI: ffff888008f0ac98 RDI: ffff88800bab0b28
[  161.584855][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  161.585184][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  161.585495][  T229] R13: ffff888008f0a128 R14: ffff888008f0a008 R15: ffff888008f0a000
[  161.585824][  T229] FS:  00007ff621760740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  161.586206][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  161.586480][  T229] CR2: 00007fe6d0a459d0 CR3: 0000000008c22003 CR4: 0000000000772ef0
[  161.586798][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  161.587134][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  161.587450][  T229] PKRU: 55555554
[  161.587623][  T229] Call Trace:
[  161.587795][  T229]  <TASK>
[ 161.587916][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.588154][ T229] ? __warn (kernel/panic.c:748) 
[ 161.588330][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.588552][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 161.588788][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 161.588961][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 161.589195][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 161.589428][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.589660][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 161.589933][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 161.590168][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 161.590397][ T229] register_netdevice (net/core/dev.c:11003) 
[ 161.590625][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 161.590855][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 161.591101][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 161.591393][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 161.591702][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 161.591987][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.592222][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 161.592451][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 161.592731][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.592969][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 161.593200][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 161.593425][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 161.593661][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 161.593842][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 161.594094][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 161.594344][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 161.594572][ T229] ksys_write (fs/read_write.c:731) 
[ 161.594747][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 161.594995][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 161.595247][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  161.595524][  T229] RIP: 0033:0x7ff6218a1b77
[ 161.595751][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  161.596485][  T229] RSP: 002b:00007ffc3462b5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  161.596816][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  161.597143][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  161.597480][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  161.597805][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  161.598138][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  163.169153][  T229] ------------[ cut here ]------------
| [ 163.169516][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  163.169912][  T229] Modules linked in: netdevsim
| [  163.170509][  T229] Tainted: [W]=WARN
[  163.170658][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 163.170895][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.171242][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  163.171935][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  163.172186][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  163.172469][  T229] RDX: 0000000000000000 RSI: ffff888004fbac98 RDI: ffff88800bab0b28
[  163.172756][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  163.173043][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  163.173339][  T229] R13: ffff888004fba128 R14: ffff888004fba008 R15: ffff888004fba000
[  163.173632][  T229] FS:  00007ff621760740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  163.173965][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  163.174226][  T229] CR2: 0000563cbf256088 CR3: 0000000008c22003 CR4: 0000000000772ef0
[  163.174521][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  163.174814][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  163.175107][  T229] PKRU: 55555554
[  163.175269][  T229] Call Trace:
[  163.175419][  T229]  <TASK>
[ 163.175524][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.175721][ T229] ? __warn (kernel/panic.c:748) 
[ 163.175877][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.176080][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 163.176297][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 163.176452][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 163.176649][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 163.176863][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 163.177075][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 163.177340][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 163.177555][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 163.177763][ T229] register_netdevice (net/core/dev.c:11003) 
[ 163.177970][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 163.178191][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 163.178413][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 163.178675][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 163.178951][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 163.179220][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.179425][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 163.179638][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 163.179891][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 163.180092][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 163.180301][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 163.180508][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 163.180719][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 163.180883][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 163.181086][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 163.181312][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 163.181531][ T229] ksys_write (fs/read_write.c:731) 
[ 163.181687][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 163.181899][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 163.182101][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  163.182357][  T229] RIP: 0033:0x7ff6218a1b77
[ 163.182565][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  163.183278][  T229] RSP: 002b:00007ffc3462b5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  163.183577][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  163.183876][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  163.184185][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  163.184482][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  163.184780][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  164.758037][  T229] ------------[ cut here ]------------
| [ 164.758423][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  164.758817][  T229] Modules linked in: netdevsim
| [  164.759535][  T229] Tainted: [W]=WARN
[  164.759682][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 164.759911][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.760159][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  164.760806][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  164.761045][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  164.761352][  T229] RDX: 0000000000000000 RSI: ffff88800b2a2c98 RDI: ffff88800bab0b28
[  164.761642][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  164.761923][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  164.762210][  T229] R13: ffff88800b2a2128 R14: ffff88800b2a2008 R15: ffff88800b2a2000
[  164.762493][  T229] FS:  00007ff621760740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  164.762812][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  164.763042][  T229] CR2: 00007ff621859890 CR3: 0000000008c22005 CR4: 0000000000772ef0
[  164.763327][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  164.763598][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  164.763875][  T229] PKRU: 55555554
[  164.764106][  T229] Call Trace:
[  164.764259][  T229]  <TASK>
[ 164.764356][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.764543][ T229] ? __warn (kernel/panic.c:748) 
[ 164.764687][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.764875][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 164.765067][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 164.765227][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 164.765415][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 164.765616][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 164.765812][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 164.766049][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 164.766252][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 164.766446][ T229] register_netdevice (net/core/dev.c:11003) 
[ 164.766641][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 164.766839][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 164.767045][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 164.767302][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 164.767565][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 164.767818][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 164.768023][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 164.768239][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 164.768497][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 164.768693][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 164.768899][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 164.769099][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 164.769318][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 164.769476][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 164.769677][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 164.769881][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 164.770088][ T229] ksys_write (fs/read_write.c:731) 
[ 164.770253][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 164.770462][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 164.770660][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  164.770901][  T229] RIP: 0033:0x7ff6218a1b77
[ 164.771102][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  164.771799][  T229] RSP: 002b:00007ffc3462b5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  164.772102][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  164.772408][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  164.772698][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  164.772990][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  164.773290][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  166.350322][  T229] ------------[ cut here ]------------
| [ 166.350727][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  166.351188][  T229] Modules linked in: netdevsim
| [  166.351832][  T229] Tainted: [W]=WARN
[  166.352003][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 166.352282][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.352557][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  166.353313][  T229] RSP: 0000:ffffc90000ae7910 EFLAGS: 00010246
[  166.353580][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  166.353905][  T229] RDX: 0000000000000000 RSI: ffff8880049aac98 RDI: ffff88800bab0b28
[  166.354290][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  166.354592][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  166.354908][  T229] R13: ffff8880049aa128 R14: ffff8880049aa008 R15: ffff8880049aa000
[  166.355225][  T229] FS:  00007ff621760740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  166.355577][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  166.355835][  T229] CR2: 00007fe6d07c81a0 CR3: 0000000008c22003 CR4: 0000000000772ef0
[  166.356162][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  166.356467][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  166.356761][  T229] PKRU: 55555554
[  166.356932][  T229] Call Trace:
[  166.357263][  T229]  <TASK>
[ 166.357372][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.357581][ T229] ? __warn (kernel/panic.c:748) 
[ 166.357738][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.357993][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 166.358358][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 166.358568][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 166.358770][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 166.359002][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 166.359228][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 166.359488][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 166.359700][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 166.359919][ T229] register_netdevice (net/core/dev.c:11003) 
[ 166.360144][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 166.360359][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 166.360586][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 166.360852][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 166.361168][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 166.361447][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.361653][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 166.361880][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 166.362161][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 166.362368][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 166.362571][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 166.362783][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 166.363013][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 166.363201][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 166.363414][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 166.363629][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 166.363844][ T229] ksys_write (fs/read_write.c:731) 
[ 166.364020][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 166.364250][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 166.364466][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  166.364723][  T229] RIP: 0033:0x7ff6218a1b77
[ 166.364955][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  166.365693][  T229] RSP: 002b:00007ffc3462b5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  166.366065][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  166.366384][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  166.366692][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  166.367012][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  166.367330][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  167.979763][  T229] ------------[ cut here ]------------
| [ 167.980101][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  167.980560][  T229] Modules linked in: netdevsim
| [  167.981711][  T229] Tainted: [W]=WARN
[  167.981885][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 167.982155][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.982421][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  167.983147][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  167.983401][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  167.983702][  T229] RDX: 0000000000000000 RSI: ffff88800b05ac98 RDI: ffff88800bab0b28
[  167.984018][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  167.984329][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  167.984627][  T229] R13: ffff88800b05a128 R14: ffff88800b05a008 R15: ffff88800b05a000
[  167.984943][  T229] FS:  00007ff621760740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  167.985316][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  167.985684][  T229] CR2: 00007ff621859890 CR3: 0000000008c22003 CR4: 0000000000772ef0
[  167.986019][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  167.986339][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  167.986639][  T229] PKRU: 55555554
[  167.986791][  T229] Call Trace:
[  167.986960][  T229]  <TASK>
[ 167.987066][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.987292][ T229] ? __warn (kernel/panic.c:748) 
[ 167.987454][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.987656][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 167.987882][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 167.988068][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 167.988290][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 167.988506][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 167.988720][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 167.989000][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 167.989230][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 167.989445][ T229] register_netdevice (net/core/dev.c:11003) 
[ 167.989665][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 167.989911][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 167.990191][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 167.990463][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 167.990752][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 167.991038][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 167.991274][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 167.991509][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 167.991776][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 167.991996][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 167.992224][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 167.992442][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 167.992666][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 167.992836][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 167.993073][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 167.993308][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 167.993529][ T229] ksys_write (fs/read_write.c:731) 
[ 167.993691][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 167.993931][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 167.994159][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  167.994424][  T229] RIP: 0033:0x7ff6218a1b77
[ 167.994640][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  167.995404][  T229] RSP: 002b:00007ffc3462b5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  167.995727][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  167.996056][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  167.996388][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  167.996704][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  167.997045][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  169.597952][  T229] ------------[ cut here ]------------
| [ 169.598360][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  169.598780][  T229] Modules linked in: netdevsim
| [  169.599408][  T229] Tainted: [W]=WARN
[  169.599564][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 169.599824][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.600085][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  169.600799][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  169.601071][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  169.601395][  T229] RDX: 0000000000000000 RSI: ffff888009d9ac98 RDI: ffff88800bab0b28
[  169.601702][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  169.602008][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  169.602455][  T229] R13: ffff888009d9a128 R14: ffff888009d9a008 R15: ffff888009d9a000
[  169.602764][  T229] FS:  00007ff621760740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  169.603616][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  169.603871][  T229] CR2: 00007ff621859890 CR3: 0000000008c22003 CR4: 0000000000772ef0
[  169.604190][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  169.604495][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  169.604852][  T229] PKRU: 55555554
[  169.605009][  T229] Call Trace:
[  169.605180][  T229]  <TASK>
[ 169.605292][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.605503][ T229] ? __warn (kernel/panic.c:748) 
[ 169.605662][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.605870][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 169.606086][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 169.606276][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 169.606485][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 169.606707][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 169.606923][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 169.607196][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 169.607410][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 169.607621][ T229] register_netdevice (net/core/dev.c:11003) 
[ 169.607836][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 169.608069][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 169.608310][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 169.608584][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 169.608864][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 169.609142][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 169.609356][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 169.609571][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 169.609835][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 169.610042][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 169.610335][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 169.610553][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 169.610770][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 169.610949][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 169.611172][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 169.611403][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 169.611636][ T229] ksys_write (fs/read_write.c:731) 
[ 169.611794][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 169.612008][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 169.612232][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  169.612491][  T229] RIP: 0033:0x7ff6218a1b77
[ 169.612699][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  169.613472][  T229] RSP: 002b:00007ffc3462b5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  169.613783][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  169.614096][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  169.614436][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  169.614744][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  169.615045][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  171.223977][  T229] ------------[ cut here ]------------
| [ 171.224377][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  171.224778][  T229] Modules linked in: netdevsim
| [  171.225381][  T229] Tainted: [W]=WARN
[  171.225529][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 171.225768][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.226018][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  171.226725][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  171.226974][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  171.227274][  T229] RDX: 0000000000000000 RSI: ffff888008f0ac98 RDI: ffff88800bab0b28
[  171.227558][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  171.227850][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  171.228148][  T229] R13: ffff888008f0a128 R14: ffff888008f0a008 R15: ffff888008f0a000
[  171.228437][  T229] FS:  00007ff621760740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  171.228769][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  171.229016][  T229] CR2: 00007fe6d07c95a0 CR3: 0000000008c22004 CR4: 0000000000772ef0
[  171.229313][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  171.229611][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  171.229900][  T229] PKRU: 55555554
[  171.230203][  T229] Call Trace:
[  171.230356][  T229]  <TASK>
[ 171.230461][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.230659][ T229] ? __warn (kernel/panic.c:748) 
[ 171.230814][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.231019][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 171.231234][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 171.231396][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 171.231602][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 171.231815][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 171.232019][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 171.232275][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 171.232480][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 171.232678][ T229] register_netdevice (net/core/dev.c:11003) 
[ 171.232884][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 171.233086][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 171.233305][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 171.233557][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 171.233827][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 171.234104][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 171.234310][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 171.234517][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 171.234769][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 171.234964][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 171.235169][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 171.235370][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 171.235578][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 171.235737][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 171.235935][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 171.236150][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 171.236356][ T229] ksys_write (fs/read_write.c:731) 
[ 171.236506][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 171.236713][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 171.236913][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  171.237174][  T229] RIP: 0033:0x7ff6218a1b77
[ 171.237383][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  171.238056][  T229] RSP: 002b:00007ffc3462b5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  171.238363][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  171.238657][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  171.238949][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  171.239248][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  171.239538][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  172.828287][  T229] ------------[ cut here ]------------
| [ 172.828923][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  172.829328][  T229] Modules linked in: netdevsim
| [  172.829912][  T229] Tainted: [W]=WARN
[  172.830072][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 172.830336][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.830590][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  172.831279][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  172.831552][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  172.831841][  T229] RDX: 0000000000000000 RSI: ffff888004fbac98 RDI: ffff88800bab0b28
[  172.832149][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  172.832441][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  172.832731][  T229] R13: ffff888004fba128 R14: ffff888004fba008 R15: ffff888004fba000
[  172.833022][  T229] FS:  00007ff621760740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  172.833472][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  172.833718][  T229] CR2: 00007fe6d0a459d0 CR3: 0000000008c22004 CR4: 0000000000772ef0
[  172.834011][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  172.834382][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  172.834671][  T229] PKRU: 55555554
[  172.834818][  T229] Call Trace:
[  172.834961][  T229]  <TASK>
[ 172.835063][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.835369][ T229] ? __warn (kernel/panic.c:748) 
[ 172.835523][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.835720][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 172.835925][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 172.836080][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 172.836400][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 172.836612][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 172.836817][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 172.837070][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 172.837408][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 172.837613][ T229] register_netdevice (net/core/dev.c:11003) 
[ 172.837818][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 172.838029][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 172.838373][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 172.838630][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 172.838897][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 172.839279][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 172.839478][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 172.839686][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 172.839940][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 172.840267][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 172.840469][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 172.840669][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 172.840879][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 172.841041][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 172.841389][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 172.841604][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 172.841812][ T229] ksys_write (fs/read_write.c:731) 
[ 172.841964][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 172.842297][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 172.842496][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  172.842738][  T229] RIP: 0033:0x7ff6218a1b77
[ 172.842944][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  172.843657][  T229] RSP: 002b:00007ffc3462b5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  172.843952][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  172.844256][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  172.844543][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  172.844827][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002
[  172.845136][  T229] R13: 00007ff62195d760 R14: 0000000000000002 R15: 00007ff6219589c0
| [  174.457967][  T229] ------------[ cut here ]------------
| [ 174.458398][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  174.458783][  T229] Modules linked in: netdevsim
| [  174.459432][  T229] Tainted: [W]=WARN
[  174.459583][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 174.459822][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.460069][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  174.460746][  T229] RSP: 0018:ffffc90000ae7910 EFLAGS: 00010246
[  174.460996][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  174.461298][  T229] RDX: 0000000000000000 RSI: ffff88800b2a2c98 RDI: ffff88800bab0b28
[  174.461596][  T229] RBP: ffffffffb4f23440 R08: 0000000000000000 R09: fffffbfff65bd83c
[  174.461887][  T229] R10: ffffffffb2dec1e7 R11: ffff88800bab0040 R12: 0000000000000000
[  174.462182][  T229] R13: ffff88800b2a2128 R14: ffff88800b2a2008 R15: ffff88800b2a2000
[  174.462478][  T229] FS:  00007ff621760740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  174.462819][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  174.463170][  T229] CR2: 00007ff621859890 CR3: 0000000008c22005 CR4: 0000000000772ef0
[  174.463462][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  174.463756][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  174.464053][  T229] PKRU: 55555554
[  174.464211][  T229] Call Trace:
[  174.464360][  T229]  <TASK>
[ 174.464463][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.464661][ T229] ? __warn (kernel/panic.c:748) 
[ 174.464816][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.465017][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 174.465227][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 174.465383][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 174.465581][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 174.465791][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 174.466000][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 174.466260][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 174.466463][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 174.466664][ T229] register_netdevice (net/core/dev.c:11003) 
[ 174.466874][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 174.467086][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 174.467321][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 174.467581][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 174.467847][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 174.468102][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 174.468312][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 174.468519][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 174.468771][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 174.468968][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 174.469176][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 174.469376][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 174.469580][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 174.469741][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 174.469942][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 174.470155][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 174.470364][ T229] ksys_write (fs/read_write.c:731) 
[ 174.470537][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 174.470746][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 174.470944][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  174.471199][  T229] RIP: 0033:0x7ff6218a1b77
[ 174.471409][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  174.472089][  T229] RSP: 002b:00007ffc3462b5a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  174.472393][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6218a1b77
[  174.472686][  T229] RDX: 0000000000000002 RSI: 0000563cbf3b1130 RDI: 0000000000000001
[  174.472978][  T229] RBP: 0000563cbf3b1130 R08: 0000000000000000 R09: 00007ff6219144e0
[  174.473282][  T229] R10: 00007ff6219143e0 R11: 0000000000000246 R12: 0000000000000002


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