======================================
| 0
| xx__-> [    9.330973][  T228] ------------[ cut here ]------------
| [ 9.331457][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.331896][  T228] Modules linked in: netdevsim
[    9.332602][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.332873][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.333163][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.333962][  T228] RSP: 0018:ffffc90000b07520 EFLAGS: 00010246
[    9.334238][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.334563][  T228] RDX: 0000000000000000 RSI: ffff8880051f2c98 RDI: ffff88800252d0f8
[    9.334886][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[    9.335220][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[    9.335550][  T228] R13: ffff8880051f2128 R14: ffff8880051f2008 R15: ffff8880051f2000
[    9.335872][  T228] FS:  00007f14643b2740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[    9.336257][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.336530][  T228] CR2: 00005645af35c338 CR3: 000000001108e005 CR4: 0000000000772ef0
[    9.336856][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.337202][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.337524][  T228] PKRU: 55555554
[    9.337691][  T228] Call Trace:
[    9.337857][  T228]  <TASK>
[ 9.337979][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.338202][ T228] ? __warn (kernel/panic.c:748) 
[ 9.338374][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.338591][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.338815][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.338993][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.339209][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.339440][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.339666][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.339943][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.340178][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.340398][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.340624][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.340855][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.341098][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.341377][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.341542][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.341829][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.342116][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.342395][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.342623][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.342895][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.343125][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 9.343292][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.343516][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.343740][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.343967][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 9.344188][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.344408][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.344673][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.344891][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.345115][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.345332][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.345552][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.345776][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 9.345998][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.346213][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.346433][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 9.346654][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 9.346875][ T228] device_add (drivers/base/core.c:3672) 
[ 9.347117][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.347332][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.347556][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.347832][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.348120][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.348333][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.348556][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.348774][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.349003][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.349175][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.349398][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.349612][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.349838][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.350070][ T228] ksys_write (fs/read_write.c:731) 
[ 9.350241][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.350455][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.350680][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.350896][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.351169][  T228] RIP: 0033:0x7f14644f3b77
[ 9.351393][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    9.352142][  T228] RSP: 002b:00007fffff033018 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.352467][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f14644f3b77
[    9.352790][  T228] RDX: 0000000000000004 RSI: 00005645af35b330 RDI: 0000000000000001
[    9.353123][  T228] RBP: 00005645af35b330 R08: 0000000000000003 R09: 0000000000000077
[    9.353445][  T228] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000004
[    9.353767][  T228] R13: 00007f14645af760 R14: 0000000000000004 R15: 00007f14645aa9c0
| [   14.174122][  T228] ------------[ cut here ]------------
| [ 14.174493][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   14.174897][  T228] Modules linked in: netdevsim [last unloaded: ip6_udp_tunnel]
| [   14.175605][  T228] Tainted: [W]=WARN
[   14.175767][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.176022][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.176277][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   14.176975][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   14.177237][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   14.177532][  T228] RDX: 0000000000000000 RSI: ffff888012522c98 RDI: ffff88800252d0a8
[   14.177829][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   14.179088][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   14.179388][  T228] R13: ffff888012522128 R14: ffff888012522008 R15: ffff888012522000
[   14.179682][  T228] FS:  00007f14643b2740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   14.180038][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.180287][  T228] CR2: 00007f8ddb6b1b70 CR3: 000000001108e003 CR4: 0000000000772ef0
[   14.180583][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   14.180876][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   14.181182][  T228] PKRU: 55555554
[   14.181332][  T228] Call Trace:
[   14.181480][  T228]  <TASK>
[ 14.181584][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.181783][ T228] ? __warn (kernel/panic.c:748) 
[ 14.181940][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.182155][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 14.182367][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 14.182520][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 14.182719][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 14.182931][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.183150][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 14.183404][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 14.183608][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 14.183814][ T228] register_netdevice (net/core/dev.c:11003) 
[ 14.184028][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 14.184238][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 14.184454][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 14.184710][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 14.184993][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 14.185357][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 14.185559][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 14.185770][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 14.186033][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 14.186230][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 14.186428][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 14.186632][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 14.186834][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 14.187012][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 14.187212][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 14.187419][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 14.187623][ T228] ksys_write (fs/read_write.c:731) 
[ 14.187777][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 14.187994][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 14.188201][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   14.188443][  T228] RIP: 0033:0x7f14644f3b77
[ 14.188643][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   14.189328][  T228] RSP: 002b:00007fffff032f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.189620][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   14.189909][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   14.190207][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   14.190495][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   14.190783][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   19.275639][  T228] ------------[ cut here ]------------
| [ 19.276024][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   19.276479][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   19.277255][  T228] Tainted: [W]=WARN
[   19.277436][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.277719][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.278078][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   19.278839][  T228] RSP: 0018:ffffc90000b07520 EFLAGS: 00010246
[   19.279139][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   19.279480][  T228] RDX: 0000000000000000 RSI: ffff8880026e2c98 RDI: ffff88800252d0f8
[   19.279816][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   19.280167][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   19.280509][  T228] R13: ffff8880026e2128 R14: ffff8880026e2008 R15: ffff8880026e2000
[   19.280868][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   19.281353][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.281636][  T228] CR2: 00007f1464566733 CR3: 000000001108e002 CR4: 0000000000772ef0
[   19.281990][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   19.282332][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   19.282670][  T228] PKRU: 55555554
[   19.282859][  T228] Call Trace:
[   19.283052][  T228]  <TASK>
[ 19.283183][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.283436][ T228] ? __warn (kernel/panic.c:748) 
[ 19.283627][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.283883][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 19.284147][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 19.284344][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 19.284592][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 19.284849][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.285106][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 19.285408][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 19.285644][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 19.285881][ T228] register_netdevice (net/core/dev.c:11003) 
[ 19.286133][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 19.286383][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 19.286646][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 19.286941][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 19.287156][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 19.287458][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 19.287764][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 19.288079][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 19.288331][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 19.288637][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 19.288887][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 19.289093][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 19.289355][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 19.289608][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 19.289859][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 19.290115][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 19.290368][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 19.290665][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 19.290920][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 19.291174][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 19.291424][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 19.291672][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 19.291925][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 19.292180][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 19.292426][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 19.292680][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 19.292934][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 19.293196][ T228] device_add (drivers/base/core.c:3672) 
[ 19.293454][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 19.293701][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 19.293967][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 19.294282][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 19.294599][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.294843][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 19.295089][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.295329][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 19.295579][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 19.295781][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 19.296045][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 19.296297][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 19.296554][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 19.296812][ T228] ksys_write (fs/read_write.c:731) 
[ 19.297018][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 19.297266][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 19.297522][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 19.297768][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.298080][  T228] RIP: 0033:0x7f14644f3b77
[ 19.298337][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   19.299157][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   19.299519][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f14644f3b77
[   19.299879][  T228] RDX: 0000000000000004 RSI: 00005645af35b330 RDI: 0000000000000001
[   19.300244][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   19.300596][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000004
[   19.300960][  T228] R13: 00007f14645af760 R14: 0000000000000004 R15: 00007f14645aa9c0
| [   19.337973][  T228] ------------[ cut here ]------------
| [ 19.338313][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   19.338759][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   19.339496][  T228] Tainted: [W]=WARN
[   19.339690][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.339975][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.340263][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   19.341019][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   19.341298][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   19.341624][  T228] RDX: 0000000000000000 RSI: ffff8880113f2c98 RDI: ffff88800252d0a8
[   19.341960][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   19.342287][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   19.342621][  T228] R13: ffff8880113f2128 R14: ffff8880113f2008 R15: ffff8880113f2000
[   19.342959][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   19.343340][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.343621][  T228] CR2: 00007f1464566733 CR3: 000000001108e002 CR4: 0000000000772ef0
[   19.343961][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   19.344374][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   19.344697][  T228] PKRU: 55555554
[   19.344872][  T228] Call Trace:
[   19.345054][  T228]  <TASK>
[ 19.345180][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.345405][ T228] ? __warn (kernel/panic.c:748) 
[ 19.345585][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.345818][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 19.346061][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 19.346241][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 19.346463][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 19.346704][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.346937][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 19.347240][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 19.347475][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 19.347713][ T228] register_netdevice (net/core/dev.c:11003) 
[ 19.347942][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 19.348351][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 19.348593][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 19.348880][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 19.349300][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 19.349592][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.349814][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 19.350052][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 19.350337][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.350558][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 19.350788][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 19.351036][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 19.351272][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 19.351569][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 19.351908][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 19.352152][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 19.352497][ T228] ksys_write (fs/read_write.c:731) 
[ 19.352675][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 19.352915][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 19.353155][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.353433][  T228] RIP: 0033:0x7f14644f3b77
[ 19.353662][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   19.354646][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   19.354983][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   19.355315][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   19.355759][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   19.356093][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   19.356538][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   25.277981][  T228] ------------[ cut here ]------------
| [ 25.278334][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   25.278769][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   25.279625][  T228] Tainted: [W]=WARN
[   25.279790][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.280090][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.280379][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   25.281173][  T228] RSP: 0018:ffffc90000b07520 EFLAGS: 00010246
[   25.281464][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   25.281812][  T228] RDX: 0000000000000000 RSI: ffff88801139ac98 RDI: ffff88800252d0f8
[   25.282173][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   25.282523][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   25.282865][  T228] R13: ffff88801139a128 R14: ffff88801139a008 R15: ffff88801139a000
[   25.283238][  T228] FS:  00007f14643b2740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   25.283664][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.284101][  T228] CR2: 00007f1ffa9e4000 CR3: 000000001108e001 CR4: 0000000000772ef0
[   25.284445][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.284782][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.285116][  T228] PKRU: 55555554
[   25.285380][  T228] Call Trace:
[   25.285561][  T228]  <TASK>
[ 25.285681][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.285913][ T228] ? __warn (kernel/panic.c:748) 
[ 25.286104][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.286330][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 25.286570][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 25.286750][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 25.287023][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 25.287258][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.287485][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 25.287757][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 25.287999][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 25.288225][ T228] register_netdevice (net/core/dev.c:11003) 
[ 25.288450][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 25.288690][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 25.288939][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 25.289241][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 25.289417][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 25.289724][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 25.290036][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 25.290336][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 25.290572][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 25.290855][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 25.291098][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 25.291264][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 25.291499][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 25.291724][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 25.291966][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 25.292193][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 25.292418][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 25.292701][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 25.292927][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 25.293162][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 25.293383][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 25.293608][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 25.293845][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 25.294084][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 25.294304][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 25.294526][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 25.294753][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 25.295007][ T228] device_add (drivers/base/core.c:3672) 
[ 25.295238][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 25.295474][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 25.295721][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 25.296032][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 25.296329][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 25.296553][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 25.296777][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 25.297025][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 25.297250][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 25.297435][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 25.297657][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 25.297884][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 25.298129][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 25.298370][ T228] ksys_write (fs/read_write.c:731) 
[ 25.298552][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 25.298775][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 25.299025][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.299255][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.299542][  T228] RIP: 0033:0x7f14644f3b77
[ 25.299778][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   25.300561][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   25.300897][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f14644f3b77
[   25.301237][  T228] RDX: 0000000000000004 RSI: 00005645af35b330 RDI: 0000000000000001
[   25.301583][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   25.301912][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000004
[   25.302271][  T228] R13: 00007f14645af760 R14: 0000000000000004 R15: 00007f14645aa9c0
| [   25.355004][  T228] ------------[ cut here ]------------
| [ 25.355329][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   25.355753][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   25.356570][  T228] Tainted: [W]=WARN
[   25.356733][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.357018][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.357294][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   25.358043][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   25.358331][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   25.358642][  T228] RDX: 0000000000000000 RSI: ffff888012db2c98 RDI: ffff88800252d0a8
[   25.358970][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   25.359288][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   25.359606][  T228] R13: ffff888012db2128 R14: ffff888012db2008 R15: ffff888012db2000
[   25.359919][  T228] FS:  00007f14643b2740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   25.361587][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.361871][  T228] CR2: 00007fffff033ff8 CR3: 000000001108e001 CR4: 0000000000772ef0
[   25.362280][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.362595][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.362910][  T228] PKRU: 55555554
[   25.363083][  T228] Call Trace:
[   25.363244][  T228]  <TASK>
[ 25.363353][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.363567][ T228] ? __warn (kernel/panic.c:748) 
[ 25.363736][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.363959][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 25.364267][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 25.364432][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 25.364642][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 25.364864][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.365093][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 25.365362][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 25.365582][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 25.365796][ T228] register_netdevice (net/core/dev.c:11003) 
[ 25.366039][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 25.366264][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 25.366492][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 25.366766][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 25.367079][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 25.367359][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 25.367574][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 25.367796][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 25.368077][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 25.368289][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 25.368507][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 25.368725][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 25.368939][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 25.369117][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 25.369333][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 25.369552][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 25.369771][ T228] ksys_write (fs/read_write.c:731) 
[ 25.369932][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 25.370180][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.370394][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.370650][  T228] RIP: 0033:0x7f14644f3b77
[ 25.370863][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   25.371601][  T228] RSP: 002b:00007fffff0341e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   25.371919][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   25.372243][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   25.372555][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   25.372867][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   25.373185][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   36.964163][  T228] ------------[ cut here ]------------
| [ 36.964459][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   36.964908][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   36.967091][  T228] Tainted: [W]=WARN
[   36.967335][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.967676][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 36.968043][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   36.968851][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   36.969214][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   36.969595][  T228] RDX: 0000000000000000 RSI: ffff8880054eac98 RDI: ffff88800252d0a8
[   36.969998][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   36.970399][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   36.970796][  T228] R13: ffff8880054ea128 R14: ffff8880054ea008 R15: ffff8880054ea000
[   36.971207][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   36.971637][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.972078][  T228] CR2: 00007f1464437440 CR3: 000000001108e005 CR4: 0000000000772ef0
[   36.972497][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   36.972915][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   36.973342][  T228] PKRU: 55555554
[   36.973609][  T228] Call Trace:
[   36.973876][  T228]  <TASK>
[ 36.974177][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 36.974490][ T228] ? __warn (kernel/panic.c:748) 
[ 36.974718][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 36.974937][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 36.975186][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 36.975361][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 36.975573][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 36.975803][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 36.976039][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 36.976308][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 36.976529][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 36.976752][ T228] register_netdevice (net/core/dev.c:11003) 
[ 36.976995][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 36.977222][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 36.977458][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 36.977726][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 36.978023][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 36.978292][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 36.978509][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 36.978734][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 36.979021][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 36.979240][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 36.979454][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 36.979671][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 36.979893][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 36.980093][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 36.980312][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 36.980536][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 36.980753][ T228] ksys_write (fs/read_write.c:731) 
[ 36.980918][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 36.981151][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 36.981364][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.981619][  T228] RIP: 0033:0x7f14644f3b77
[ 36.981841][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   36.982553][  T228] RSP: 002b:00007fffff0341e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   36.982863][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   36.983184][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   36.983494][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   36.983803][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   36.984129][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   48.678229][  T228] ------------[ cut here ]------------
| [ 48.678695][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   48.679178][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   48.680515][  T228] Tainted: [W]=WARN
[   48.680686][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 48.680976][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.681261][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   48.682060][  T228] RSP: 0018:ffffc90000b07520 EFLAGS: 00010246
[   48.682348][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   48.682679][  T228] RDX: 0000000000000000 RSI: ffff888004feac98 RDI: ffff88800252d0f8
[   48.683025][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   48.683370][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   48.683706][  T228] R13: ffff888004fea128 R14: ffff888004fea008 R15: ffff888004fea000
[   48.684049][  T228] FS:  00007f14643b2740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   48.684457][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.684735][  T228] CR2: 00007f8ddb32a5a0 CR3: 000000001108e003 CR4: 0000000000772ef0
[   48.685086][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.685425][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   48.685766][  T228] PKRU: 55555554
[   48.685937][  T228] Call Trace:
[   48.686131][  T228]  <TASK>
[ 48.686248][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.686476][ T228] ? __warn (kernel/panic.c:748) 
[ 48.686652][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.686891][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 48.687142][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 48.687320][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 48.687544][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 48.687789][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.688036][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 48.688328][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 48.688566][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 48.688798][ T228] register_netdevice (net/core/dev.c:11003) 
[ 48.689029][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 48.689259][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 48.689504][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 48.689791][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 48.689976][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 48.690285][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 48.690555][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 48.690827][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 48.691057][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 48.691320][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 48.691537][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 48.691695][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 48.691911][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 48.692137][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 48.692355][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 48.692569][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 48.692779][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 48.693047][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 48.693257][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 48.693484][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 48.693692][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 48.693898][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 48.694132][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 48.694349][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 48.694558][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 48.694769][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 48.694997][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 48.695254][ T228] device_add (drivers/base/core.c:3672) 
[ 48.695466][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 48.695671][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 48.695889][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 48.696169][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 48.696459][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 48.696676][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 48.696914][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 48.697140][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 48.697366][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 48.697543][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 48.697773][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 48.698017][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 48.698233][ T228] ksys_write (fs/read_write.c:731) 
[ 48.698403][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 48.698623][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 48.698834][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   48.699112][  T228] RIP: 0033:0x7f14644f3b77
[ 48.699332][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   48.700064][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   48.700378][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f14644f3b77
[   48.700683][  T228] RDX: 0000000000000004 RSI: 00005645af35b330 RDI: 0000000000000001
[   48.700999][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   48.701308][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000004
[   48.701613][  T228] R13: 00007f14645af760 R14: 0000000000000004 R15: 00007f14645aa9c0
| [   48.743331][  T228] ------------[ cut here ]------------
| [ 48.743613][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   48.744132][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   48.745091][  T228] Tainted: [W]=WARN
[   48.745244][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 48.745502][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.745740][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   48.746513][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   48.746765][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   48.747232][  T228] RDX: 0000000000000000 RSI: ffff88801139ac98 RDI: ffff88800252d0a8
[   48.747535][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   48.747811][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   48.748297][  T228] R13: ffff88801139a128 R14: ffff88801139a008 R15: ffff88801139a000
[   48.748590][  T228] FS:  00007f14643b2740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   48.748936][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.749350][  T228] CR2: 00007fffff033ff8 CR3: 000000001108e003 CR4: 0000000000772ef0
[   48.749663][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.750121][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   48.750408][  T228] PKRU: 55555554
[   48.750549][  T228] Call Trace:
[   48.750690][  T228]  <TASK>
[ 48.750789][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.751100][ T228] ? __warn (kernel/panic.c:748) 
[ 48.751256][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.751451][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 48.751659][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 48.751804][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 48.752058][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 48.752268][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.752479][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 48.752719][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 48.752923][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 48.753134][ T228] register_netdevice (net/core/dev.c:11003) 
[ 48.753341][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 48.753555][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 48.753759][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 48.754012][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 48.754270][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 48.754521][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 48.754717][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 48.754914][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 48.755171][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 48.755366][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 48.755559][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 48.755761][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 48.755970][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 48.756119][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 48.756314][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 48.756508][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 48.756715][ T228] ksys_write (fs/read_write.c:731) 
[ 48.756865][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 48.757078][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 48.757273][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   48.757512][  T228] RIP: 0033:0x7f14644f3b77
[ 48.757712][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   48.758391][  T228] RSP: 002b:00007fffff0341e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   48.758683][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   48.758974][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   48.759261][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   48.759537][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   48.759826][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   60.587742][  T228] ------------[ cut here ]------------
| [ 60.588260][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   60.588672][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   60.589507][  T228] Tainted: [W]=WARN
[   60.589659][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 60.589906][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 60.590165][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   60.590859][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   60.591123][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   60.591420][  T228] RDX: 0000000000000000 RSI: ffff888012db2c98 RDI: ffff88800252d0a8
[   60.591725][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   60.592031][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   60.592330][  T228] R13: ffff888012db2128 R14: ffff888012db2008 R15: ffff888012db2000
[   60.592632][  T228] FS:  00007f14643b2740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   60.592993][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.593247][  T228] CR2: 00007f1464437440 CR3: 000000001108e005 CR4: 0000000000772ef0
[   60.593565][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   60.593859][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   60.594163][  T228] PKRU: 55555554
[   60.594316][  T228] Call Trace:
[   60.594471][  T228]  <TASK>
[ 60.594576][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 60.594783][ T228] ? __warn (kernel/panic.c:748) 
[ 60.594940][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 60.595158][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 60.595369][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 60.595524][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 60.595726][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 60.595943][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 60.596167][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 60.596428][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 60.596637][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 60.596855][ T228] register_netdevice (net/core/dev.c:11003) 
[ 60.597069][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 60.597280][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 60.597503][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 60.597765][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 60.598057][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 60.598324][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 60.598529][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 60.598747][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 60.599017][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 60.599221][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 60.599429][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 60.599639][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 60.599847][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 60.600020][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 60.600228][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 60.600442][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 60.600657][ T228] ksys_write (fs/read_write.c:731) 
[ 60.600810][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 60.601029][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 60.601237][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   60.601491][  T228] RIP: 0033:0x7f14644f3b77
[ 60.601700][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   60.602408][  T228] RSP: 002b:00007fffff0341e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   60.602709][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   60.603010][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   60.603303][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   60.603602][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   60.603895][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   72.666369][  T228] ------------[ cut here ]------------
| [ 72.666816][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   72.667600][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   72.668478][  T228] Tainted: [W]=WARN
[   72.668650][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 72.668917][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 72.669206][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   72.669935][  T228] RSP: 0018:ffffc90000b07520 EFLAGS: 00010246
[   72.670222][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   72.670541][  T228] RDX: 0000000000000000 RSI: ffff8880054eac98 RDI: ffff88800252d0f8
[   72.670861][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   72.671191][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   72.671511][  T228] R13: ffff8880054ea128 R14: ffff8880054ea008 R15: ffff8880054ea000
[   72.671924][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   72.672303][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   72.672572][  T228] CR2: 00007f4cecddf000 CR3: 000000001108e006 CR4: 0000000000772ef0
[   72.672896][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   72.673223][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   72.673543][  T228] PKRU: 55555554
[   72.673713][  T228] Call Trace:
[   72.673881][  T228]  <TASK>
[ 72.674014][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 72.674235][ T228] ? __warn (kernel/panic.c:748) 
[ 72.674416][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 72.674639][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 72.674867][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 72.675052][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 72.675271][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 72.675505][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 72.675729][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 72.676011][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 72.676236][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 72.676467][ T228] register_netdevice (net/core/dev.c:11003) 
[ 72.676697][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 72.676934][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 72.677180][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 72.677459][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 72.677630][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 72.677912][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 72.678195][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 72.678472][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 72.678706][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 72.678989][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 72.679210][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 72.679381][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 72.679605][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 72.679832][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 72.680070][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 72.680291][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 72.680512][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 72.680776][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 72.681006][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 72.681223][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 72.681445][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 72.681662][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 72.681888][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 72.682114][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 72.682334][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 72.682557][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 72.682790][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 72.683021][ T228] device_add (drivers/base/core.c:3672) 
[ 72.683266][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 72.683483][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 72.683714][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 72.684004][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 72.684287][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 72.684502][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 72.684726][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 72.684956][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 72.685182][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 72.685358][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 72.685580][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 72.685807][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 72.686043][ T228] ksys_write (fs/read_write.c:731) 
[ 72.686216][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 72.686444][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 72.686674][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   72.686956][  T228] RIP: 0033:0x7f14644f3b77
[ 72.687183][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   72.687891][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   72.688228][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f14644f3b77
[   72.688541][  T228] RDX: 0000000000000004 RSI: 00005645af35b330 RDI: 0000000000000001
[   72.688854][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   72.689177][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000004
[   72.689503][  T228] R13: 00007f14645af760 R14: 0000000000000004 R15: 00007f14645aa9c0
| [   72.740072][  T228] ------------[ cut here ]------------
| [ 72.740391][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   72.740799][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   72.741579][  T228] Tainted: [W]=WARN
[   72.741721][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 72.741958][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 72.742201][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   72.742836][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   72.743080][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   72.743352][  T228] RDX: 0000000000000000 RSI: ffff888004feac98 RDI: ffff88800252d0a8
[   72.743629][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   72.743900][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   72.744263][  T228] R13: ffff888004fea128 R14: ffff888004fea008 R15: ffff888004fea000
[   72.744536][  T228] FS:  00007f14643b2740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   72.744856][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   72.745098][  T228] CR2: 00007fc78c8b9000 CR3: 000000001108e005 CR4: 0000000000772ef0
[   72.745373][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   72.745643][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   72.746021][  T228] PKRU: 55555554
[   72.746165][  T228] Call Trace:
[   72.746304][  T228]  <TASK>
[ 72.746399][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 72.746585][ T228] ? __warn (kernel/panic.c:748) 
[ 72.746740][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 72.746931][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 72.747149][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 72.747297][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 72.747482][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 72.747679][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 72.747873][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 72.748117][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 72.748309][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 72.748632][ T228] register_netdevice (net/core/dev.c:11003) 
[ 72.748830][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 72.749038][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 72.749361][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 72.749608][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 72.749862][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 72.750115][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 72.750309][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 72.750503][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 72.750773][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 72.750971][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 72.751269][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 72.751471][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 72.751665][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 72.751937][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 72.752145][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 72.752349][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 72.752548][ T228] ksys_write (fs/read_write.c:731) 
[ 72.752700][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 72.752896][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 72.753209][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   72.753444][  T228] RIP: 0033:0x7f14644f3b77
[ 72.753767][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   72.754417][  T228] RSP: 002b:00007fffff035ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   72.754809][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   72.755223][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   72.755625][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   72.755898][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   72.756179][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   79.945207][  T228] ------------[ cut here ]------------
| [ 79.945434][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   79.945807][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   79.946583][  T228] Tainted: [W]=WARN
[   79.946744][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 79.947002][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 79.947244][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   79.947902][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   79.948151][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   79.948433][  T228] RDX: 0000000000000000 RSI: ffff88801139ac98 RDI: ffff88800252d0a8
[   79.948709][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   79.948992][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   79.949272][  T228] R13: ffff88801139a128 R14: ffff88801139a008 R15: ffff88801139a000
[   79.949545][  T228] FS:  00007f14643b2740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   79.949872][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   79.950161][  T228] CR2: 00007f1464437440 CR3: 000000001108e003 CR4: 0000000000772ef0
[   79.950449][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   79.950723][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   79.951014][  T228] PKRU: 55555554
[   79.951156][  T228] Call Trace:
[   79.951297][  T228]  <TASK>
[ 79.951395][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 79.951581][ T228] ? __warn (kernel/panic.c:748) 
[ 79.951729][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 79.951918][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 79.952121][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 79.952268][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 79.952458][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 79.952661][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 79.952857][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 79.953104][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 79.953298][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 79.953490][ T228] register_netdevice (net/core/dev.c:11003) 
[ 79.953679][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 79.953883][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 79.954102][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 79.954347][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 79.954604][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 79.954849][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 79.955048][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 79.955248][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 79.955487][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 79.955675][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 79.955864][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 79.956064][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 79.956257][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 79.956407][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 79.956595][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 79.956799][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 79.957010][ T228] ksys_write (fs/read_write.c:731) 
[ 79.957164][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 79.957360][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 79.957547][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   79.957774][  T228] RIP: 0033:0x7f14644f3b77
[ 79.957972][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   79.958618][  T228] RSP: 002b:00007fffff035ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   79.958899][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   79.959181][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   79.959458][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   79.959736][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   79.960016][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   87.691269][  T228] ------------[ cut here ]------------
| [ 87.691777][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   87.692294][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   87.693312][  T228] Tainted: [W]=WARN
[   87.693506][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 87.693806][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 87.694137][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   87.695189][  T228] RSP: 0018:ffffc90000b07520 EFLAGS: 00010246
[   87.695488][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   87.695844][  T228] RDX: 0000000000000000 RSI: ffff888012db2c98 RDI: ffff88800252d0f8
[   87.696240][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   87.696624][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   87.696996][  T228] R13: ffff888012db2128 R14: ffff888012db2008 R15: ffff888012db2000
[   87.697357][  T228] FS:  00007f14643b2740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   87.697793][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.698108][  T228] CR2: 00007f8ddb32a5a0 CR3: 000000001108e005 CR4: 0000000000772ef0
[   87.698471][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   87.698830][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   87.699196][  T228] PKRU: 55555554
[   87.699379][  T228] Call Trace:
[   87.699561][  T228]  <TASK>
[ 87.699682][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 87.699920][ T228] ? __warn (kernel/panic.c:748) 
[ 87.700120][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 87.700356][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 87.700609][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 87.700794][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 87.701044][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 87.701304][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 87.701562][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 87.701868][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 87.702131][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 87.702383][ T228] register_netdevice (net/core/dev.c:11003) 
[ 87.702641][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 87.702891][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 87.703168][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 87.703467][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 87.703653][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 87.703973][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 87.704299][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 87.704618][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 87.704878][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 87.705208][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 87.705509][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 87.705693][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 87.705977][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 87.706229][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 87.706470][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 87.706740][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 87.706996][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 87.707297][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 87.707541][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 87.707777][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 87.708038][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 87.708280][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 87.708546][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 87.708785][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 87.709051][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 87.709292][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 87.709570][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 87.709812][ T228] device_add (drivers/base/core.c:3672) 
[ 87.710078][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 87.710325][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 87.710581][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 87.710896][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 87.711216][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 87.711454][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 87.711692][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 87.711926][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 87.712182][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 87.712374][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 87.712628][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 87.712874][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 87.713142][ T228] ksys_write (fs/read_write.c:731) 
[ 87.713326][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 87.713572][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 87.713812][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   87.714117][  T228] RIP: 0033:0x7f14644f3b77
[ 87.714377][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   87.715218][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   87.715575][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f14644f3b77
[   87.715924][  T228] RDX: 0000000000000004 RSI: 00005645af35b330 RDI: 0000000000000001
[   87.716294][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   87.716663][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000004
[   87.717037][  T228] R13: 00007f14645af760 R14: 0000000000000004 R15: 00007f14645aa9c0
| [   87.768278][  T228] ------------[ cut here ]------------
| [ 87.768750][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   87.769293][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   87.770278][  T228] Tainted: [W]=WARN
[   87.770442][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 87.770712][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 87.771003][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   87.771766][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   87.772052][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   87.772376][  T228] RDX: 0000000000000000 RSI: ffff8880054eac98 RDI: ffff88800252d0a8
[   87.772701][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   87.773050][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   87.773376][  T228] R13: ffff8880054ea128 R14: ffff8880054ea008 R15: ffff8880054ea000
[   87.773703][  T228] FS:  00007f14643b2740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   87.774093][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   87.774376][  T228] CR2: 00007fffff033fa8 CR3: 000000001108e005 CR4: 0000000000772ef0
[   87.774729][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   87.775082][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   87.775416][  T228] PKRU: 55555554
[   87.775586][  T228] Call Trace:
[   87.775757][  T228]  <TASK>
[ 87.775872][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 87.776302][ T228] ? __warn (kernel/panic.c:748) 
[ 87.776470][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 87.776709][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 87.776938][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 87.777127][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 87.777348][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 87.777579][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 87.777805][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 87.778105][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 87.778341][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 87.778561][ T228] register_netdevice (net/core/dev.c:11003) 
[ 87.778789][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 87.779034][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 87.779268][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 87.779566][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 87.779856][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 87.780150][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 87.780376][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 87.780600][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 87.780881][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 87.781126][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 87.781340][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 87.781559][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 87.781782][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 87.781966][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 87.782193][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 87.782419][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 87.782649][ T228] ksys_write (fs/read_write.c:731) 
[ 87.782817][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 87.783057][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 87.783278][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   87.783546][  T228] RIP: 0033:0x7f14644f3b77
[ 87.783775][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   87.784568][  T228] RSP: 002b:00007fffff033e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   87.784909][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   87.785256][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   87.785589][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   87.785927][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   87.786277][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   90.904094][  T228] ------------[ cut here ]------------
| [ 90.904372][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   90.904782][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   90.905789][  T228] Tainted: [W]=WARN
[   90.906016][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 90.906297][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.906566][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   90.907350][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   90.907626][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   90.907940][  T228] RDX: 0000000000000000 RSI: ffff888004feac98 RDI: ffff88800252d0a8
[   90.908269][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   90.908586][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   90.908899][  T228] R13: ffff888004fea128 R14: ffff888004fea008 R15: ffff888004fea000
[   90.909218][  T228] FS:  00007f14643b2740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   90.909579][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.909841][  T228] CR2: 00005645af33a1e8 CR3: 000000001108e003 CR4: 0000000000772ef0
[   90.910162][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   90.910477][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   90.910791][  T228] PKRU: 55555554
[   90.910966][  T228] Call Trace:
[   90.911127][  T228]  <TASK>
[ 90.911243][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.911459][ T228] ? __warn (kernel/panic.c:748) 
[ 90.911626][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.911843][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 90.912079][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 90.912248][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 90.912457][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 90.912683][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.912908][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 90.913187][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 90.913406][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 90.913628][ T228] register_netdevice (net/core/dev.c:11003) 
[ 90.913852][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 90.914084][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 90.914314][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 90.914588][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 90.914878][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 90.915177][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 90.915396][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 90.915616][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 90.915886][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 90.916110][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 90.916322][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 90.916534][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 90.916774][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 90.916960][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 90.917177][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 90.917401][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 90.917625][ T228] ksys_write (fs/read_write.c:731) 
[ 90.917790][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 90.918025][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 90.918254][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   90.918519][  T228] RIP: 0033:0x7f14644f3b77
[ 90.918742][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   90.919473][  T228] RSP: 002b:00007fffff033e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   90.919788][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   90.920102][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   90.920408][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   90.920702][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   90.921017][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   93.439813][  T228] ------------[ cut here ]------------
| [ 93.440279][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   93.440717][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   93.441603][  T228] Tainted: [W]=WARN
[   93.441774][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 93.442053][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.442333][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   93.443083][  T228] RSP: 0018:ffffc90000b07520 EFLAGS: 00010246
[   93.443359][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   93.443678][  T228] RDX: 0000000000000000 RSI: ffff88801139ac98 RDI: ffff88800252d0f8
[   93.444021][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   93.444342][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   93.444661][  T228] R13: ffff88801139a128 R14: ffff88801139a008 R15: ffff88801139a000
[   93.444992][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   93.445363][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   93.445633][  T228] CR2: 00007fc99a1d7000 CR3: 000000001108e001 CR4: 0000000000772ef0
[   93.446213][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   93.446535][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   93.446868][  T228] PKRU: 55555554
[   93.447056][  T228] Call Trace:
[   93.447226][  T228]  <TASK>
[ 93.447353][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.447576][ T228] ? __warn (kernel/panic.c:748) 
[ 93.447751][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.447982][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 93.448212][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 93.448383][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 93.448600][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 93.448840][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.449082][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 93.449364][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 93.449589][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 93.449818][ T228] register_netdevice (net/core/dev.c:11003) 
[ 93.450056][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 93.450293][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 93.450532][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 93.450819][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 93.451003][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 93.451295][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 93.451574][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 93.451852][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 93.452094][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 93.452371][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 93.452601][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 93.452774][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 93.453012][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 93.453240][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 93.453464][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 93.453685][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 93.453914][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 93.454234][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 93.454457][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 93.454670][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 93.454893][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 93.455120][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 93.455347][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 93.455564][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 93.455784][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 93.456014][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 93.456246][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 93.456466][ T228] device_add (drivers/base/core.c:3672) 
[ 93.456702][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 93.456917][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 93.457160][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 93.457444][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 93.457729][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 93.457961][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 93.458187][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 93.458403][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 93.458629][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 93.458808][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 93.459046][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 93.459280][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 93.459506][ T228] ksys_write (fs/read_write.c:731) 
[ 93.459680][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 93.459909][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 93.460139][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   93.460403][  T228] RIP: 0033:0x7f14644f3b77
[ 93.460633][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   93.461368][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   93.461694][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f14644f3b77
[   93.462026][  T228] RDX: 0000000000000004 RSI: 00005645af35b330 RDI: 0000000000000001
[   93.462349][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   93.462666][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000004
[   93.462993][  T228] R13: 00007f14645af760 R14: 0000000000000004 R15: 00007f14645aa9c0
| [   93.519020][  T228] ------------[ cut here ]------------
| [ 93.519401][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   93.519802][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   93.520659][  T228] Tainted: [W]=WARN
[   93.520829][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 93.521126][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.521387][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   93.522074][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   93.522331][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   93.522636][  T228] RDX: 0000000000000000 RSI: ffff888012db2c98 RDI: ffff88800252d0a8
[   93.522937][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   93.523240][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   93.523526][  T228] R13: ffff888012db2128 R14: ffff888012db2008 R15: ffff888012db2000
[   93.523816][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   93.524157][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   93.524400][  T228] CR2: 00007fc99a1d7000 CR3: 000000001108e001 CR4: 0000000000772ef0
[   93.524685][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   93.525158][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   93.525445][  T228] PKRU: 55555554
[   93.525607][  T228] Call Trace:
[   93.525769][  T228]  <TASK>
[ 93.525883][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.526104][ T228] ? __warn (kernel/panic.c:748) 
[ 93.526274][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.526483][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 93.526707][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 93.526866][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 93.527081][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 93.527299][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.527512][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 93.527766][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 93.527991][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 93.528201][ T228] register_netdevice (net/core/dev.c:11003) 
[ 93.528416][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 93.528633][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 93.528856][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 93.529142][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 93.529429][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 93.529692][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 93.529903][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 93.530135][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 93.530395][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 93.530602][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 93.530805][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 93.531034][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 93.531262][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 93.531433][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 93.531640][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 93.531848][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 93.532066][ T228] ksys_write (fs/read_write.c:731) 
[ 93.532222][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 93.532441][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 93.532654][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   93.532900][  T228] RIP: 0033:0x7f14644f3b77
[ 93.533118][ T228] Code: Unable to access opcode bytes at 0x7f14644f3b4d.

Code starting with the faulting instruction
===========================================
[   93.533399][  T228] RSP: 002b:00007fffff034318 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   93.533687][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   93.533989][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   93.534277][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   93.534562][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   93.534861][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   95.970309][  T228] ------------[ cut here ]------------
| [ 95.970628][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   95.971259][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   95.972042][  T228] Tainted: [W]=WARN
[   95.972190][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 95.972427][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.972679][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   95.973345][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[   95.973588][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   95.973875][  T228] RDX: 0000000000000000 RSI: ffff8880054eac98 RDI: ffff88800252d0a8
[   95.974185][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   95.974466][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   95.974745][  T228] R13: ffff8880054ea128 R14: ffff8880054ea008 R15: ffff8880054ea000
[   95.975033][  T228] FS:  00007f14643b2740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   95.975359][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   95.975598][  T228] CR2: 00007f1464437440 CR3: 000000001108e001 CR4: 0000000000772ef0
[   95.975881][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   95.976175][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   95.976457][  T228] PKRU: 55555554
[   95.976610][  T228] Call Trace:
[   95.976753][  T228]  <TASK>
[ 95.976853][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.977056][ T228] ? __warn (kernel/panic.c:748) 
[ 95.977207][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.977401][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 95.977600][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 95.977749][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 95.977939][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 95.978176][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.978373][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 95.978613][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 95.978812][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 95.979019][ T228] register_netdevice (net/core/dev.c:11003) 
[ 95.979217][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 95.979416][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 95.979623][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 95.979868][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 95.980141][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 95.980393][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 95.980594][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 95.980790][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 95.981054][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 95.981243][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 95.981435][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 95.981627][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 95.981832][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 95.982006][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 95.982203][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 95.982401][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 95.982597][ T228] ksys_write (fs/read_write.c:731) 
[ 95.982743][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 95.982941][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 95.983147][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   95.983383][  T228] RIP: 0033:0x7f14644f3b77
[ 95.983575][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   95.984222][  T228] RSP: 002b:00007fffff034318 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   95.984506][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   95.984787][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   95.985072][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   95.985348][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   95.985624][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [   98.194757][  T228] ------------[ cut here ]------------
| [ 98.195167][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   98.195582][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   98.196433][  T228] Tainted: [W]=WARN
[   98.196600][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.196859][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.197127][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   98.197841][  T228] RSP: 0018:ffffc90000b07520 EFLAGS: 00010246
[   98.198139][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   98.198451][  T228] RDX: 0000000000000000 RSI: ffff88801139ac98 RDI: ffff88800252d0f8
[   98.198754][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   98.199075][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   98.199381][  T228] R13: ffff88801139a128 R14: ffff88801139a008 R15: ffff88801139a000
[   98.199784][  T228] FS:  00007f14643b2740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   98.200150][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.200406][  T228] CR2: 00007f8ddb32a5a0 CR3: 000000001108e003 CR4: 0000000000772ef0
[   98.200709][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   98.201021][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   98.201325][  T228] PKRU: 55555554
[   98.201479][  T228] Call Trace:
[   98.201634][  T228]  <TASK>
[ 98.201740][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.201957][ T228] ? __warn (kernel/panic.c:748) 
[ 98.202120][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.202332][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 98.202545][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 98.202704][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 98.202911][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 98.203141][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.203359][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 98.203622][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 98.203835][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 98.204053][ T228] register_netdevice (net/core/dev.c:11003) 
[ 98.204266][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 98.204485][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 98.204714][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 98.204985][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 98.205145][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 98.205435][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 98.205696][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 98.205968][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 98.206183][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 98.206441][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 98.206660][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 98.206817][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 98.207050][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 98.207263][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 98.207469][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 98.207672][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 98.207881][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 98.208141][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 98.208348][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 98.208554][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 98.208766][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 98.208989][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 98.209199][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 98.209403][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 98.209606][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 98.209812][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 98.210037][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 98.210246][ T228] device_add (drivers/base/core.c:3672) 
[ 98.210456][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 98.210660][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 98.210876][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 98.211152][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 98.211420][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 98.211630][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 98.211842][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 98.212055][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 98.212265][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 98.212429][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 98.212638][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 98.212852][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 98.213080][ T228] ksys_write (fs/read_write.c:731) 
[ 98.213238][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 98.213456][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 98.213663][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   98.213915][  T228] RIP: 0033:0x7f14644f3b77
[ 98.214136][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   98.214841][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   98.215158][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f14644f3b77
[   98.215458][  T228] RDX: 0000000000000004 RSI: 00005645af35b330 RDI: 0000000000000001
[   98.215763][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   98.216070][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000004
[   98.216371][  T228] R13: 00007f14645af760 R14: 0000000000000004 R15: 00007f14645aa9c0
| [   98.271941][  T228] ------------[ cut here ]------------
| [ 98.272274][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   98.272663][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   98.273479][  T228] Tainted: [W]=WARN
[   98.273633][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.273881][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.274200][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   98.274867][  T228] RSP: 0000:ffffc90000b07910 EFLAGS: 00010246
[   98.275123][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   98.275408][  T228] RDX: 0000000000000000 RSI: ffff888004feac98 RDI: ffff88800252d0a8
[   98.275699][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[   98.276002][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[   98.276287][  T228] R13: ffff888004fea128 R14: ffff888004fea008 R15: ffff888004fea000
[   98.276587][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   98.276930][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.277211][  T228] CR2: 00007f8ddb6207b0 CR3: 000000001108e003 CR4: 0000000000772ef0
[   98.277507][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   98.277898][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   98.278201][  T228] PKRU: 55555554
[   98.278361][  T228] Call Trace:
[   98.278517][  T228]  <TASK>
[ 98.278626][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.278830][ T228] ? __warn (kernel/panic.c:748) 
[ 98.278998][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.279200][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 98.279406][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 98.279566][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 98.279771][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 98.279998][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.280208][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 98.280463][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 98.280668][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 98.280874][ T228] register_netdevice (net/core/dev.c:11003) 
[ 98.281108][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 98.281327][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 98.281553][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 98.281810][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 98.282088][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 98.282345][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 98.282546][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 98.282763][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 98.283026][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 98.283227][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 98.283424][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 98.283628][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 98.283833][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 98.284007][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 98.284217][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 98.284428][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 98.284640][ T228] ksys_write (fs/read_write.c:731) 
[ 98.284796][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 98.285023][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 98.285225][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   98.285474][  T228] RIP: 0033:0x7f14644f3b77
[ 98.285684][ T228] Code: Unable to access opcode bytes at 0x7f14644f3b4d.

Code starting with the faulting instruction
===========================================
[   98.285933][  T228] RSP: 002b:00007fffff033e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   98.286233][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[   98.286518][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[   98.286818][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[   98.287119][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[   98.287407][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [  100.434268][  T228] ------------[ cut here ]------------
| [ 100.434575][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  100.434999][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  100.435835][  T228] Tainted: [W]=WARN
[  100.436004][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 100.436268][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.436545][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  100.437291][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  100.437563][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  100.437876][  T228] RDX: 0000000000000000 RSI: ffff888012db2c98 RDI: ffff88800252d0a8
[  100.438202][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  100.438515][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[  100.438833][  T228] R13: ffff888012db2128 R14: ffff888012db2008 R15: ffff888012db2000
[  100.439158][  T228] FS:  00007f14643b2740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  100.439523][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.439791][  T228] CR2: 00005645af33a1e8 CR3: 000000001108e002 CR4: 0000000000772ef0
[  100.440114][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  100.440434][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  100.440753][  T228] PKRU: 55555554
[  100.440913][  T228] Call Trace:
[  100.441085][  T228]  <TASK>
[ 100.441196][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.441410][ T228] ? __warn (kernel/panic.c:748) 
[ 100.441579][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.441795][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 100.442027][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 100.442191][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 100.442405][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 100.442651][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.442881][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 100.443166][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 100.443387][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 100.443607][ T228] register_netdevice (net/core/dev.c:11003) 
[ 100.443825][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 100.444058][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 100.444288][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 100.444561][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 100.444852][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 100.445137][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 100.445358][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 100.445584][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 100.445856][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 100.446078][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 100.446293][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 100.446510][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 100.446738][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 100.446910][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 100.447146][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 100.447371][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 100.447586][ T228] ksys_write (fs/read_write.c:731) 
[ 100.447749][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 100.447985][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 100.448202][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.448454][  T228] RIP: 0033:0x7f14644f3b77
[ 100.448667][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  100.449378][  T228] RSP: 002b:00007fffff033e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  100.449678][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[  100.449999][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[  100.450301][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[  100.450604][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[  100.450908][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [  102.423488][  T228] ------------[ cut here ]------------
| [ 102.423915][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  102.424546][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  102.425413][  T228] Tainted: [W]=WARN
[  102.425585][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 102.425849][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.426134][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  102.426857][  T228] RSP: 0018:ffffc90000b07520 EFLAGS: 00010246
[  102.427143][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  102.427459][  T228] RDX: 0000000000000000 RSI: ffff8880054eac98 RDI: ffff88800252d0f8
[  102.427775][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  102.428102][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[  102.428419][  T228] R13: ffff8880054ea128 R14: ffff8880054ea008 R15: ffff8880054ea000
[  102.428738][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  102.429114][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  102.429382][  T228] CR2: 00007fdbe0d981b4 CR3: 000000001108e006 CR4: 0000000000772ef0
[  102.429694][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  102.430026][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  102.430344][  T228] PKRU: 55555554
[  102.430510][  T228] Call Trace:
[  102.430678][  T228]  <TASK>
[ 102.430798][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.431031][ T228] ? __warn (kernel/panic.c:748) 
[ 102.431209][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.431431][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 102.431661][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 102.431838][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 102.432072][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 102.432307][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.432537][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 102.432816][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 102.433063][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 102.433289][ T228] register_netdevice (net/core/dev.c:11003) 
[ 102.433515][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 102.433747][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 102.433996][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 102.434272][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 102.434445][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 102.434732][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 102.435024][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 102.435306][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 102.435538][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 102.435814][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 102.436048][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 102.436221][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 102.436446][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 102.436683][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 102.436905][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 102.437137][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 102.437359][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 102.437625][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 102.437855][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 102.438077][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 102.438325][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 102.438536][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 102.438754][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 102.438977][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 102.439189][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 102.439404][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 102.439648][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 102.439873][ T228] device_add (drivers/base/core.c:3672) 
[ 102.440109][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 102.440328][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 102.440560][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 102.440837][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 102.441152][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 102.441370][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 102.441600][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 102.441817][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 102.442052][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 102.442229][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 102.442449][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 102.442675][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 102.442900][ T228] ksys_write (fs/read_write.c:731) 
[ 102.443084][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 102.443322][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 102.443544][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  102.443811][  T228] RIP: 0033:0x7f14644f3b77
[ 102.444049][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  102.444768][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  102.445099][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f14644f3b77
[  102.445411][  T228] RDX: 0000000000000004 RSI: 00005645af35b330 RDI: 0000000000000001
[  102.445726][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[  102.446052][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000004
[  102.446368][  T228] R13: 00007f14645af760 R14: 0000000000000004 R15: 00007f14645aa9c0
| [  102.477737][  T228] ------------[ cut here ]------------
| [ 102.478131][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  102.478521][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  102.479319][  T228] Tainted: [W]=WARN
[  102.479474][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 102.479719][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.479986][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  102.480649][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  102.480914][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  102.481216][  T228] RDX: 0000000000000000 RSI: ffff88801139ac98 RDI: ffff88800252d0a8
[  102.481502][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  102.481790][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[  102.483393][  T228] R13: ffff88801139a128 R14: ffff88801139a008 R15: ffff88801139a000
[  102.483690][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  102.484038][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  102.484284][  T228] CR2: 00007fdbe0d981b4 CR3: 000000001108e006 CR4: 0000000000772ef0
[  102.484571][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  102.484866][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  102.485173][  T228] PKRU: 55555554
[  102.485327][  T228] Call Trace:
[  102.485482][  T228]  <TASK>
[ 102.485593][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.485903][ T228] ? __warn (kernel/panic.c:748) 
[ 102.486080][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.486285][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 102.486491][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 102.486664][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 102.486862][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 102.487088][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.487297][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 102.487548][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 102.487758][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 102.487974][ T228] register_netdevice (net/core/dev.c:11003) 
[ 102.488178][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 102.488400][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 102.488615][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 102.488866][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 102.489150][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 102.489403][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 102.489599][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 102.489807][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 102.490070][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 102.490266][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 102.490466][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 102.490669][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 102.490871][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 102.491045][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 102.491247][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 102.491455][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 102.491663][ T228] ksys_write (fs/read_write.c:731) 
[ 102.491821][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 102.492041][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 102.492241][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  102.492484][  T228] RIP: 0033:0x7f14644f3b77
[ 102.492685][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  102.493351][  T228] RSP: 002b:00007fffff0340b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  102.493639][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[  102.493933][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[  102.494228][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[  102.494518][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[  102.494803][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [  104.520524][  T228] ------------[ cut here ]------------
| [ 104.520873][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  104.521285][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  104.523168][  T228] Tainted: [W]=WARN
[  104.523491][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 104.523909][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.524330][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  104.525160][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  104.525521][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  104.525914][  T228] RDX: 0000000000000000 RSI: ffff888004feac98 RDI: ffff88800252d0a8
[  104.526214][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  104.526504][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[  104.526800][  T228] R13: ffff888004fea128 R14: ffff888004fea008 R15: ffff888004fea000
[  104.527100][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  104.527431][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  104.527677][  T228] CR2: 00005645af33a1e8 CR3: 000000001108e005 CR4: 0000000000772ef0
[  104.527975][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  104.528267][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  104.528566][  T228] PKRU: 55555554
[  104.528724][  T228] Call Trace:
[  104.528883][  T228]  <TASK>
[ 104.529008][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.529223][ T228] ? __warn (kernel/panic.c:748) 
[ 104.529389][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.529596][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 104.529810][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 104.529981][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 104.530188][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 104.530404][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.530627][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 104.530886][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 104.531113][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 104.531327][ T228] register_netdevice (net/core/dev.c:11003) 
[ 104.531542][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 104.531766][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 104.532000][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 104.532266][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 104.532546][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 104.532808][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.533031][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 104.533252][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 104.533511][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.533716][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 104.533922][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 104.534143][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 104.534355][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 104.534525][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 104.534738][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 104.534969][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 104.535188][ T228] ksys_write (fs/read_write.c:731) 
[ 104.535352][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 104.535570][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 104.535778][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  104.536042][  T228] RIP: 0033:0x7f14644f3b77
[ 104.536257][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  104.536964][  T228] RSP: 002b:00007fffff0340b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  104.537270][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[  104.537571][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[  104.537871][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[  104.538180][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[  104.538479][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [  106.771730][  T228] ------------[ cut here ]------------
| [ 106.772442][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  106.773350][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  106.775273][  T228] Tainted: [W]=WARN
[  106.775554][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 106.775931][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.776243][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  106.777054][  T228] RSP: 0018:ffffc90000b07520 EFLAGS: 00010246
[  106.777341][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  106.777674][  T228] RDX: 0000000000000000 RSI: ffff888012db2c98 RDI: ffff88800252d0f8
[  106.778031][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  106.778363][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[  106.778703][  T228] R13: ffff888012db2128 R14: ffff888012db2008 R15: ffff888012db2000
[  106.779062][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  106.779443][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  106.779728][  T228] CR2: 00005645af332000 CR3: 000000001108e002 CR4: 0000000000772ef0
[  106.780268][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  106.780806][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  106.781266][  T228] PKRU: 55555554
[  106.781447][  T228] Call Trace:
[  106.781626][  T228]  <TASK>
[ 106.781762][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.782006][ T228] ? __warn (kernel/panic.c:748) 
[ 106.782185][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.782411][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 106.782650][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 106.782859][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 106.783109][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 106.783350][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.783594][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 106.783895][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 106.784159][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 106.784388][ T228] register_netdevice (net/core/dev.c:11003) 
[ 106.784622][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 106.784880][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 106.785140][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 106.785424][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 106.785601][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 106.785914][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 106.786218][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 106.786519][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 106.786775][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 106.787094][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 106.787373][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 106.787551][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 106.787832][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 106.788156][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 106.788382][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 106.788604][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 106.788851][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 106.789152][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 106.789377][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 106.789596][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 106.789835][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 106.790079][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 106.790310][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 106.790538][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 106.790789][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 106.791037][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 106.791269][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 106.791495][ T228] device_add (drivers/base/core.c:3672) 
[ 106.791733][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 106.791978][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 106.792219][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 106.792518][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 106.792818][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.793065][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 106.793293][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.793514][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 106.793750][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 106.793935][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 106.794189][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 106.794422][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 106.794654][ T228] ksys_write (fs/read_write.c:731) 
[ 106.794842][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 106.795089][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 106.795318][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  106.795585][  T228] RIP: 0033:0x7f14644f3b77
[ 106.795896][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  106.797077][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  106.797409][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f14644f3b77
[  106.797748][  T228] RDX: 0000000000000004 RSI: 00005645af35b330 RDI: 0000000000000001
[  106.798087][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[  106.798409][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000004
[  106.798735][  T228] R13: 00007f14645af760 R14: 0000000000000004 R15: 00007f14645aa9c0
| [  106.932143][  T228] ------------[ cut here ]------------
| [ 106.932524][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  106.932940][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  106.933794][  T228] Tainted: [W]=WARN
[  106.933980][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 106.934266][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.934524][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  106.935203][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  106.935458][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  106.935764][  T228] RDX: 0000000000000000 RSI: ffff8880054eac98 RDI: ffff88800252d0a8
[  106.936078][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  106.936376][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[  106.936680][  T228] R13: ffff8880054ea128 R14: ffff8880054ea008 R15: ffff8880054ea000
[  106.936997][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  106.937488][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  106.937756][  T228] CR2: 00005645af35b330 CR3: 000000001108e002 CR4: 0000000000772ef0
[  106.938065][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  106.938369][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  106.938666][  T228] PKRU: 55555554
[  106.938828][  T228] Call Trace:
[  106.939000][  T228]  <TASK>
[ 106.939113][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.939323][ T228] ? __warn (kernel/panic.c:748) 
[ 106.939490][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.939710][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 106.939940][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 106.940117][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 106.940327][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 106.940542][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.940761][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 106.941032][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 106.941247][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 106.941460][ T228] register_netdevice (net/core/dev.c:11003) 
[ 106.941683][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 106.941917][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 106.942156][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 106.942421][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 106.942703][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 106.942984][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.943190][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 106.943398][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 106.943662][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.943885][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 106.944106][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 106.944315][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 106.944526][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 106.944694][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 106.944905][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 106.945125][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 106.945348][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 106.945571][ T228] ksys_write (fs/read_write.c:731) 
[ 106.945735][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 106.945960][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 106.946174][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 106.946389][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  106.946652][  T228] RIP: 0033:0x7f14644f3b77
[ 106.946872][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  106.947590][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  106.947897][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[  106.948208][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[  106.948522][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[  106.948817][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[  106.949115][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [  107.657664][  T228] ------------[ cut here ]------------
| [ 107.658047][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  107.658485][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  107.659377][  T228] Tainted: [W]=WARN
[  107.659559][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 107.659831][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.660119][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  107.660828][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  107.661109][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  107.661427][  T228] RDX: 0000000000000000 RSI: ffff88801139ac98 RDI: ffff88800252d0a8
[  107.661741][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  107.662068][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[  107.662382][  T228] R13: ffff88801139a128 R14: ffff88801139a008 R15: ffff88801139a000
[  107.662696][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  107.663132][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  107.663408][  T228] CR2: 00005645af35b330 CR3: 000000001108e002 CR4: 0000000000772ef0
[  107.663729][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  107.664068][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  107.664394][  T228] PKRU: 55555554
[  107.664569][  T228] Call Trace:
[  107.664751][  T228]  <TASK>
[ 107.664870][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.665103][ T228] ? __warn (kernel/panic.c:748) 
[ 107.665276][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.665498][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 107.665721][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 107.665894][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 107.666122][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 107.666355][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.666593][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 107.666866][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 107.667097][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 107.667321][ T228] register_netdevice (net/core/dev.c:11003) 
[ 107.667541][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 107.667767][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 107.668020][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 107.668299][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 107.668590][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 107.668869][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 107.669100][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 107.669331][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 107.669601][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 107.669819][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 107.670049][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 107.670290][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 107.670513][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 107.670689][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 107.670919][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 107.671151][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 107.671384][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 107.671615][ T228] ksys_write (fs/read_write.c:731) 
[ 107.671793][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 107.672017][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 107.672250][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 107.672476][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  107.672742][  T228] RIP: 0033:0x7f14644f3b77
[ 107.672985][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  107.673691][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  107.674016][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[  107.674332][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[  107.674642][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[  107.674962][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[  107.675289][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [  114.862937][  T228] ------------[ cut here ]------------
| [ 114.863320][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  114.863713][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  114.864514][  T228] Tainted: [W]=WARN
[  114.864664][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 114.864911][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.865176][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  114.865844][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  114.866098][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  114.866387][  T228] RDX: 0000000000000000 RSI: ffff888004feac98 RDI: ffff88800252d0a8
[  114.866695][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  114.866995][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[  114.867283][  T228] R13: ffff888004fea128 R14: ffff888004fea008 R15: ffff888004fea000
[  114.867573][  T228] FS:  00007f14643b2740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  114.867920][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  114.868182][  T228] CR2: 00005644825fe998 CR3: 000000001108e002 CR4: 0000000000772ef0
[  114.868476][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  114.868764][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  114.869070][  T228] PKRU: 55555554
[  114.869222][  T228] Call Trace:
[  114.869373][  T228]  <TASK>
[ 114.869475][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.869679][ T228] ? __warn (kernel/panic.c:748) 
[ 114.869830][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.870048][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 114.870254][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 114.870411][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 114.870608][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 114.870821][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.871037][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 114.871289][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 114.871494][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 114.871698][ T228] register_netdevice (net/core/dev.c:11003) 
[ 114.871898][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 114.872113][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 114.872330][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 114.872598][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 114.872866][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 114.873130][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 114.873329][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 114.873546][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 114.873800][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 114.874010][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 114.874208][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 114.874407][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 114.874613][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 114.874771][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 114.874987][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 114.875195][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 114.875406][ T228] ksys_write (fs/read_write.c:731) 
[ 114.875558][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 114.875775][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 114.875987][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  114.876229][  T228] RIP: 0033:0x7f14644f3b77
[ 114.876429][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  114.877133][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  114.877437][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[  114.877727][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[  114.878030][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[  114.878324][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002
[  114.878621][  T228] R13: 00007f14645af760 R14: 0000000000000002 R15: 00007f14645aa9c0
| [  117.182448][  T228] ------------[ cut here ]------------
| [ 117.182913][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  117.183391][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  117.184304][  T228] Tainted: [W]=WARN
[  117.184500][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 117.184803][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.185111][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  117.186009][  T228] RSP: 0018:ffffc90000b07520 EFLAGS: 00010246
[  117.186307][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  117.186660][  T228] RDX: 0000000000000000 RSI: ffff888012db2c98 RDI: ffff88800252d0f8
[  117.187035][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  117.187401][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[  117.187766][  T228] R13: ffff888012db2128 R14: ffff888012db2008 R15: ffff888012db2000
[  117.189136][  T228] FS:  00007f14643b2740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  117.189662][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  117.190021][  T228] CR2: 00005645af337cdc CR3: 000000001108e003 CR4: 0000000000772ef0
[  117.190379][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  117.190719][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  117.191071][  T228] PKRU: 55555554
[  117.191250][  T228] Call Trace:
[  117.191449][  T228]  <TASK>
[ 117.191577][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.191826][ T228] ? __warn (kernel/panic.c:748) 
[ 117.192024][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.192262][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 117.192519][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 117.192708][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 117.192972][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 117.193245][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.193493][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 117.193784][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 117.194056][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 117.194310][ T228] register_netdevice (net/core/dev.c:11003) 
[ 117.194570][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 117.194833][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 117.195126][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 117.195437][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 117.195635][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 117.195968][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 117.196291][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 117.196617][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 117.196892][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 117.197215][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 117.197487][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 117.197666][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 117.197917][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 117.198185][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 117.198444][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 117.198693][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 117.198941][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 117.199249][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 117.199482][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 117.199712][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 117.199945][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 117.200189][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 117.200423][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 117.200656][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 117.200891][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 117.201134][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 117.201373][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 117.201618][ T228] device_add (drivers/base/core.c:3672) 
[ 117.201853][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 117.202099][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 117.202350][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 117.202651][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 117.202960][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 117.203212][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 117.203449][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 117.203679][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 117.203918][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 117.204119][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 117.204365][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 117.204607][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 117.204849][ T228] ksys_write (fs/read_write.c:731) 
[ 117.205039][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 117.205284][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 117.205537][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  117.205843][  T228] RIP: 0033:0x7f14644f3b77
[ 117.206120][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  117.206936][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  117.207309][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f14644f3b77
[  117.207665][  T228] RDX: 0000000000000004 RSI: 00005645af35b330 RDI: 0000000000000001
[  117.208014][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[  117.208363][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000004
[  117.208696][  T228] R13: 00007f14645af760 R14: 0000000000000004 R15: 00007f14645aa9c0
| [  117.317101][  T228] ------------[ cut here ]------------
| [ 117.317430][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  117.317830][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  117.318658][  T228] Tainted: [W]=WARN
[  117.318809][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 117.319197][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.319457][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  117.320154][  T228] RSP: 0018:ffffc90000b07910 EFLAGS: 00010246
[  117.320404][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  117.320698][  T228] RDX: 0000000000000000 RSI: ffff88801139ac98 RDI: ffff88800252d0a8
[  117.321007][  T228] RBP: ffffffff95723440 R08: 0000000000000000 R09: fffffbfff26bd83c
[  117.321301][  T228] R10: ffffffff935ec1e7 R11: ffff88800252c5c0 R12: 0000000000000000
[  117.321591][  T228] R13: ffff88801139a128 R14: ffff88801139a008 R15: ffff88801139a000
[  117.322000][  T228] FS:  00007f14643b2740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  117.322348][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  117.322592][  T228] CR2: 00007f1464566733 CR3: 000000001108e005 CR4: 0000000000772ef0
[  117.322886][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  117.323187][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  117.323483][  T228] PKRU: 55555554
[  117.323633][  T228] Call Trace:
[  117.323781][  T228]  <TASK>
[ 117.323884][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.324091][ T228] ? __warn (kernel/panic.c:748) 
[ 117.324246][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.324446][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 117.324650][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 117.324807][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 117.325017][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 117.325231][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.325438][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 117.325689][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 117.325895][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 117.326106][ T228] register_netdevice (net/core/dev.c:11003) 
[ 117.326316][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 117.326533][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 117.326750][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 117.327020][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 117.327299][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 117.327556][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 117.327759][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 117.327975][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 117.328230][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 117.328427][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 117.328629][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 117.328832][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 117.329046][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 117.329213][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 117.329420][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 117.329618][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 117.329823][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 117.330036][ T228] ksys_write (fs/read_write.c:731) 
[ 117.330188][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 117.330385][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 117.330593][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 117.330800][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  117.331056][  T228] RIP: 0033:0x7f14644f3b77
[ 117.331262][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  117.331944][  T228] RSP: 002b:00007fffff0367b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  117.332257][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f14644f3b77
[  117.332551][  T228] RDX: 0000000000000002 RSI: 00005645af35b330 RDI: 0000000000000001
[  117.332844][  T228] RBP: 00005645af35b330 R08: 0000000000000000 R09: 00007f14645664e0
[  117.333145][  T228] R10: 00007f14645663e0 R11: 0000000000000246 R12: 0000000000000002


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