======================================
| 0
| xx__-> [    9.667427][  T229] ------------[ cut here ]------------
| [ 9.667897][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.668340][  T229] Modules linked in: netdevsim
[    9.669077][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.669344][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.669619][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.670574][  T229] RSP: 0018:ffffc90000787520 EFLAGS: 00010246
[    9.670846][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.671167][  T229] RDX: 0000000000000000 RSI: ffff88800b0aac98 RDI: ffff88800b16d0f8
[    9.671484][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[    9.671818][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[    9.672148][  T229] R13: ffff88800b0aa128 R14: ffff88800b0aa008 R15: ffff88800b0aa000
[    9.672459][  T229] FS:  00007f236d93a740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[    9.672835][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.673113][  T229] CR2: 000055d70686eaf0 CR3: 000000000a4ea004 CR4: 0000000000772ef0
[    9.673428][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.673741][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.674063][  T229] PKRU: 55555554
[    9.674228][  T229] Call Trace:
[    9.674392][  T229]  <TASK>
[ 9.674504][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.674720][ T229] ? __warn (kernel/panic.c:748) 
[ 9.674883][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.675106][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.675329][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.675491][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.675700][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.675929][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.676163][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.676435][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.676652][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.676869][ T229] register_netdevice (net/core/dev.c:11003) 
[ 9.677099][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.677332][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.677563][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.677835][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.677999][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.678297][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.678574][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.678854][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.679088][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.679360][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.679574][ T229] ? 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)) 
[ 9.679733][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.679952][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.680177][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.680390][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 9.680601][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.680816][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.681081][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.681296][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.681507][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.681719][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.681926][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.682156][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 9.682363][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.682570][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.682780][ T229] ? 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) 
[ 9.683008][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 9.683228][ T229] device_add (drivers/base/core.c:3672) 
[ 9.683440][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.683646][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.683869][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.684150][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.684423][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.684636][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.684852][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.685066][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.685281][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.685449][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.685663][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.685871][ T229] ? 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) 
[ 9.686107][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.686325][ T229] ksys_write (fs/read_write.c:731) 
[ 9.686486][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.686695][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.686916][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.687137][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.687393][  T229] RIP: 0033:0x7f236da7bb77
[ 9.687613][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    9.688357][  T229] RSP: 002b:00007fffa73d66e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.688673][  T229] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f236da7bb77
[    9.688989][  T229] RDX: 0000000000000005 RSI: 00005561d7437340 RDI: 0000000000000001
[    9.689310][  T229] RBP: 00005561d7437340 R08: 0000000000000003 R09: 0000000000000077
[    9.689623][  T229] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[    9.689935][  T229] R13: 00007f236db37760 R14: 0000000000000005 R15: 00007f236db329c0
| [   15.203007][  T229] ------------[ cut here ]------------
| [ 15.203348][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   15.203733][  T229] Modules linked in: netdevsim [last unloaded: ip6_udp_tunnel]
| [   15.204419][  T229] Tainted: [W]=WARN
[   15.204583][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 15.204820][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 15.205070][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   15.205727][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   15.205974][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   15.206264][  T229] RDX: 0000000000000000 RSI: ffff888008a22c98 RDI: ffff88800b16d0a8
[   15.206652][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   15.206935][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   15.207224][  T229] R13: ffff888008a22128 R14: ffff888008a22008 R15: ffff888008a22000
[   15.207513][  T229] FS:  00007f236d93a740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   15.207840][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.208091][  T229] CR2: 00005561d7437340 CR3: 000000000a4ea003 CR4: 0000000000772ef0
[   15.208378][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   15.208666][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   15.208964][  T229] PKRU: 55555554
[   15.209117][  T229] Call Trace:
[   15.209262][  T229]  <TASK>
[ 15.209361][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 15.209549][ T229] ? __warn (kernel/panic.c:748) 
[ 15.209698][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 15.209888][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 15.210101][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 15.210247][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 15.210433][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 15.210633][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 15.210828][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 15.211078][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 15.211274][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 15.211466][ T229] register_netdevice (net/core/dev.c:11003) 
[ 15.211667][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 15.211867][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 15.212079][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 15.212323][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 15.212582][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 15.212833][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 15.213024][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 15.213234][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 15.213475][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 15.213663][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 15.213854][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 15.214042][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 15.214244][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 15.214398][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 15.214599][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 15.214800][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 15.214998][ T229] ksys_write (fs/read_write.c:731) 
[ 15.215152][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 15.215350][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 15.215539][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   15.215768][  T229] RIP: 0033:0x7f236da7bb77
[ 15.215962][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   15.216631][  T229] RSP: 002b:00007fffa73d65e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   15.216929][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   15.217219][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   15.217504][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   15.217786][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   15.218074][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [   20.895982][  T229] ------------[ cut here ]------------
| [ 20.896382][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   20.896914][  T229] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   20.897662][  T229] Tainted: [W]=WARN
[   20.897822][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.898101][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 20.898373][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   20.899120][  T229] RSP: 0018:ffffc90000787520 EFLAGS: 00010246
[   20.899388][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   20.899701][  T229] RDX: 0000000000000000 RSI: ffff88800ee4ac98 RDI: ffff88800b16d0f8
[   20.900013][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   20.900347][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   20.900664][  T229] R13: ffff88800ee4a128 R14: ffff88800ee4a008 R15: ffff88800ee4a000
[   20.900972][  T229] FS:  00007f236d93a740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   20.901348][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.901611][  T229] CR2: 00007f54a8bb07a0 CR3: 000000000a4ea006 CR4: 0000000000772ef0
[   20.901930][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   20.902259][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   20.902567][  T229] PKRU: 55555554
[   20.902722][  T229] Call Trace:
[   20.902890][  T229]  <TASK>
[ 20.903002][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 20.903239][ T229] ? __warn (kernel/panic.c:748) 
[ 20.903403][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 20.903614][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 20.903831][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 20.903989][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 20.904225][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 20.904451][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 20.904675][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 20.904944][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 20.905187][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 20.905402][ T229] register_netdevice (net/core/dev.c:11003) 
[ 20.905616][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 20.905836][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 20.906081][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 20.906361][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 20.906522][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 20.906793][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 20.907078][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 20.907357][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 20.907580][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 20.907856][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 20.908092][ T229] ? 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)) 
[ 20.908254][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 20.908474][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 20.908695][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 20.908908][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 20.909144][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 20.909364][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 20.909624][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 20.909832][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 20.910042][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 20.910273][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 20.910485][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 20.910706][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 20.910930][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 20.911174][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 20.911394][ T229] ? 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) 
[ 20.911611][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 20.911824][ T229] device_add (drivers/base/core.c:3672) 
[ 20.912039][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 20.912271][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 20.912505][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 20.912787][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 20.913079][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 20.913294][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 20.913508][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 20.913714][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 20.913930][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 20.914126][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 20.914345][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 20.914555][ T229] ? 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) 
[ 20.914777][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 20.914999][ T229] ksys_write (fs/read_write.c:731) 
[ 20.915184][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 20.915389][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 20.915617][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 20.915829][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.916109][  T229] RIP: 0033:0x7f236da7bb77
[ 20.916327][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   20.917035][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   20.917379][  T229] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f236da7bb77
[   20.917689][  T229] RDX: 0000000000000005 RSI: 00005561d7437340 RDI: 0000000000000001
[   20.917997][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   20.918327][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000005
[   20.918638][  T229] R13: 00007f236db37760 R14: 0000000000000005 R15: 00007f236db329c0
| [   20.973506][  T229] ------------[ cut here ]------------
| [ 20.973824][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   20.974901][  T229] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   20.975556][  T229] Tainted: [W]=WARN
[   20.975702][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.975965][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 20.976229][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   20.976979][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   20.977235][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   20.977517][  T229] RDX: 0000000000000000 RSI: ffff88800b132c98 RDI: ffff88800b16d0a8
[   20.977797][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   20.978086][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   20.978364][  T229] R13: ffff88800b132128 R14: ffff88800b132008 R15: ffff88800b132000
[   20.978650][  T229] FS:  00007f236d93a740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   20.978971][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.979221][  T229] CR2: 00007f236d9c1290 CR3: 000000000a4ea001 CR4: 0000000000772ef0
[   20.979512][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   20.979798][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   20.980084][  T229] PKRU: 55555554
[   20.980228][  T229] Call Trace:
[   20.980373][  T229]  <TASK>
[ 20.980473][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 20.980663][ T229] ? __warn (kernel/panic.c:748) 
[ 20.980811][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 20.981003][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 20.981215][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 20.981363][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 20.981555][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 20.981756][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 20.981961][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 20.982228][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 20.982433][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 20.982625][ T229] register_netdevice (net/core/dev.c:11003) 
[ 20.982832][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 20.983032][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 20.983251][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 20.983496][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 20.983759][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 20.984006][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 20.984209][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 20.984416][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 20.984658][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 20.984852][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 20.985040][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 20.985257][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 20.985460][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 20.985619][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 20.985813][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 20.986011][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 20.986219][ T229] ksys_write (fs/read_write.c:731) 
[ 20.986368][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 20.986582][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 20.986781][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.987009][  T229] RIP: 0033:0x7f236da7bb77
[ 20.987218][ T229] Code: Unable to access opcode bytes at 0x7f236da7bb4d.

Code starting with the faulting instruction
===========================================
[   20.987488][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   20.987770][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   20.988068][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   20.988353][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   20.988636][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   20.988914][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [   27.221802][  T229] ------------[ cut here ]------------
| [ 27.222838][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   27.223546][  T229] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   27.224878][  T229] Tainted: [W]=WARN
[   27.225184][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.225618][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 27.226076][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   27.227270][  T229] RSP: 0018:ffffc90000787520 EFLAGS: 00010246
[   27.227721][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   27.228257][  T229] RDX: 0000000000000000 RSI: ffff888009b72c98 RDI: ffff88800b16d0f8
[   27.228772][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   27.229306][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   27.229825][  T229] R13: ffff888009b72128 R14: ffff888009b72008 R15: ffff888009b72000
[   27.230520][  T229] FS:  00007f236d93a740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   27.231135][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.231564][  T229] CR2: 00007f236daee733 CR3: 000000000a4ea004 CR4: 0000000000772ef0
[   27.232083][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.232611][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.233152][  T229] PKRU: 55555554
[   27.233415][  T229] Call Trace:
[   27.233676][  T229]  <TASK>
[ 27.233857][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 27.234232][ T229] ? __warn (kernel/panic.c:748) 
[ 27.234506][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 27.234866][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 27.235244][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 27.235518][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 27.235863][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 27.236267][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 27.236633][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 27.237103][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 27.237467][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 27.237828][ T229] register_netdevice (net/core/dev.c:11003) 
[ 27.238216][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 27.238592][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 27.238971][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 27.239437][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 27.239704][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 27.240186][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 27.240637][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 27.241115][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 27.241481][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 27.241919][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 27.242297][ T229] ? 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)) 
[ 27.242553][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 27.242933][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 27.243313][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 27.243679][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 27.244041][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 27.244429][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 27.244851][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 27.245209][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 27.245494][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 27.245778][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 27.246077][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 27.246370][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 27.246653][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 27.246965][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 27.247332][ T229] ? 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) 
[ 27.247699][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 27.248083][ T229] device_add (drivers/base/core.c:3672) 
[ 27.248440][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 27.248790][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 27.249189][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 27.249642][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 27.250122][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 27.250468][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 27.250832][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 27.251082][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 27.251428][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 27.251710][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 27.252096][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 27.252444][ T229] ? 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) 
[ 27.252802][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 27.253187][ T229] ksys_write (fs/read_write.c:731) 
[ 27.253464][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 27.253807][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 27.254199][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 27.254553][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.254990][  T229] RIP: 0033:0x7f236da7bb77
[ 27.255379][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   27.256609][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   27.257152][  T229] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f236da7bb77
[   27.257675][  T229] RDX: 0000000000000005 RSI: 00005561d7437340 RDI: 0000000000000001
[   27.258205][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   27.258719][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000005
[   27.259258][  T229] R13: 00007f236db37760 R14: 0000000000000005 R15: 00007f236db329c0
| [   27.315599][  T229] ------------[ cut here ]------------
| [ 27.316023][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   27.316458][  T229] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   27.317417][  T229] Tainted: [W]=WARN
[   27.317578][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.317832][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 27.318103][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   27.318925][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   27.319991][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   27.320310][  T229] RDX: 0000000000000000 RSI: ffff88800ee52c98 RDI: ffff88800b16d0a8
[   27.320626][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   27.320934][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   27.321243][  T229] R13: ffff88800ee52128 R14: ffff88800ee52008 R15: ffff88800ee52000
[   27.321547][  T229] FS:  00007f236d93a740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   27.321899][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.322171][  T229] CR2: 00007f236daf03a1 CR3: 000000000a4ea003 CR4: 0000000000772ef0
[   27.322480][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.322800][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.323117][  T229] PKRU: 55555554
[   27.323271][  T229] Call Trace:
[   27.323426][  T229]  <TASK>
[ 27.323532][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 27.323735][ T229] ? __warn (kernel/panic.c:748) 
[ 27.323896][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 27.324110][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 27.324324][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 27.324491][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 27.324704][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 27.324920][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 27.325146][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 27.325404][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 27.325615][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 27.325824][ T229] register_netdevice (net/core/dev.c:11003) 
[ 27.326036][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 27.326349][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 27.326675][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 27.327122][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 27.327573][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 27.328010][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 27.328363][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 27.328707][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 27.328999][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 27.329296][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 27.329603][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 27.329914][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 27.330268][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 27.330458][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 27.330687][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 27.330909][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 27.331133][ T229] ksys_write (fs/read_write.c:731) 
[ 27.331294][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 27.331519][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 27.331743][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.332004][  T229] RIP: 0033:0x7f236da7bb77
[ 27.332236][ T229] Code: Unable to access opcode bytes at 0x7f236da7bb4d.

Code starting with the faulting instruction
===========================================
[   27.332504][  T229] RSP: 002b:00007fffa73d78b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   27.332844][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   27.333169][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   27.333489][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   27.333794][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   27.334118][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [   39.705813][  T229] ------------[ cut here ]------------
| [ 39.706148][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   39.706547][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   39.707533][  T229] Tainted: [W]=WARN
[   39.707682][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 39.707931][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 39.708190][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   39.708909][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   39.709164][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   39.709452][  T229] RDX: 0000000000000000 RSI: ffff88800b0c2c98 RDI: ffff88800b16d0a8
[   39.709736][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   39.710021][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   39.710310][  T229] R13: ffff88800b0c2128 R14: ffff88800b0c2008 R15: ffff88800b0c2000
[   39.710599][  T229] FS:  00007f236d93a740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   39.710929][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.711185][  T229] CR2: 00007f236daee733 CR3: 000000000a4ea006 CR4: 0000000000772ef0
[   39.711470][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   39.711763][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   39.712044][  T229] PKRU: 55555554
[   39.712201][  T229] Call Trace:
[   39.712344][  T229]  <TASK>
[ 39.712444][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 39.712641][ T229] ? __warn (kernel/panic.c:748) 
[ 39.712806][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 39.713003][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 39.713210][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 39.713360][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 39.713553][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 39.713760][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 39.713963][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 39.714215][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 39.714415][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 39.714618][ T229] register_netdevice (net/core/dev.c:11003) 
[ 39.714823][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 39.715027][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 39.715248][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 39.715503][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 39.715769][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 39.716020][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 39.716235][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 39.716436][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 39.716684][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 39.716879][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 39.717080][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 39.717275][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 39.717473][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 39.717634][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 39.717835][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 39.718037][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 39.718271][ T229] ksys_write (fs/read_write.c:731) 
[ 39.718422][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 39.718629][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 39.718826][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   39.719076][  T229] RIP: 0033:0x7f236da7bb77
[ 39.719285][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   39.719947][  T229] RSP: 002b:00007fffa73d78b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   39.720252][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   39.720542][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   39.720823][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   39.721118][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   39.721406][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [   51.810148][  T229] ------------[ cut here ]------------
| [ 51.810540][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   51.810960][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   51.811914][  T229] Tainted: [W]=WARN
[   51.812080][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 51.812340][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 51.812619][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   51.813421][  T229] RSP: 0018:ffffc90000787520 EFLAGS: 00010246
[   51.813689][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   51.813996][  T229] RDX: 0000000000000000 RSI: ffff88800b132c98 RDI: ffff88800b16d0f8
[   51.814313][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   51.814627][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   51.814933][  T229] R13: ffff88800b132128 R14: ffff88800b132008 R15: ffff88800b132000
[   51.815257][  T229] FS:  00007f236d93a740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   51.815623][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.815882][  T229] CR2: 00007f236daee733 CR3: 000000000a4ea005 CR4: 0000000000772ef0
[   51.816205][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   51.816515][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   51.816828][  T229] PKRU: 55555554
[   51.816996][  T229] Call Trace:
[   51.817164][  T229]  <TASK>
[ 51.817276][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 51.817488][ T229] ? __warn (kernel/panic.c:748) 
[ 51.817654][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 51.817867][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 51.818095][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 51.818257][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 51.818470][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 51.818695][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 51.818913][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 51.819192][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 51.819410][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 51.819628][ T229] register_netdevice (net/core/dev.c:11003) 
[ 51.819841][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 51.820072][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 51.820305][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 51.820578][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 51.820764][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 51.821035][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 51.821311][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 51.821581][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 51.821799][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 51.822071][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 51.822293][ T229] ? 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)) 
[ 51.822451][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 51.822672][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 51.822890][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 51.823110][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 51.823321][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 51.823530][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 51.823792][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 51.823999][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 51.824215][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 51.824424][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 51.824632][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 51.824847][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 51.825063][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 51.825275][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 51.825483][ T229] ? 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) 
[ 51.825700][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 51.825910][ T229] device_add (drivers/base/core.c:3672) 
[ 51.826131][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 51.826339][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 51.826559][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 51.826835][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 51.827118][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 51.827325][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 51.827538][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 51.827748][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 51.827962][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 51.828137][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 51.828353][ T229] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 51.828577][ T229] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 51.828838][ T229] ksys_write (fs/read_write.c:731) 
[ 51.829000][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 51.829253][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 51.829466][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   51.829723][  T229] RIP: 0033:0x7f236da7bb77
[ 51.829936][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   51.830675][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   51.830991][  T229] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f236da7bb77
[   51.831315][  T229] RDX: 0000000000000005 RSI: 00005561d7437340 RDI: 0000000000000001
[   51.831622][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   51.831929][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000005
[   51.832244][  T229] R13: 00007f236db37760 R14: 0000000000000005 R15: 00007f236db329c0
| [   51.888876][  T229] ------------[ cut here ]------------
| [ 51.889255][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   51.889635][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   51.890515][  T229] Tainted: [W]=WARN
[   51.890661][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 51.890892][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 51.891145][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   51.891792][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   51.892029][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   51.892416][  T229] RDX: 0000000000000000 RSI: ffff88800b0aac98 RDI: ffff88800b16d0a8
[   51.892710][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   51.892986][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   51.893277][  T229] R13: ffff88800b0aa128 R14: ffff88800b0aa008 R15: ffff88800b0aa000
[   51.893558][  T229] FS:  00007f236d93a740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   51.893880][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.894124][  T229] CR2: 00007fffa73d7ff8 CR3: 000000000a4ea004 CR4: 0000000000772ef0
[   51.894409][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   51.894683][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   51.894957][  T229] PKRU: 55555554
[   51.895112][  T229] Call Trace:
[   51.895254][  T229]  <TASK>
[ 51.895351][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 51.895546][ T229] ? __warn (kernel/panic.c:748) 
[ 51.895693][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 51.895882][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 51.896089][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 51.896237][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 51.896429][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 51.896635][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 51.896830][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 51.897084][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 51.897277][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 51.897468][ T229] register_netdevice (net/core/dev.c:11003) 
[ 51.897664][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 51.897863][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 51.898077][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 51.898324][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 51.898582][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 51.898826][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 51.899013][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 51.899222][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 51.899462][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 51.899650][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 51.899841][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 51.900029][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 51.900234][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 51.900384][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 51.900576][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 51.900771][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 51.900966][ T229] ksys_write (fs/read_write.c:731) 
[ 51.901129][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 51.901328][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 51.901515][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   51.901744][  T229] RIP: 0033:0x7f236da7bb77
[ 51.901935][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   51.902606][  T229] RSP: 002b:00007fffa73d78b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   51.902889][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   51.903176][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   51.903454][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   51.903731][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   51.904007][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [   64.143115][  T229] ------------[ cut here ]------------
| [ 64.143408][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   64.143870][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   64.144860][  T229] Tainted: [W]=WARN
[   64.145041][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 64.145347][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 64.145645][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   64.146455][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   64.146751][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   64.147162][  T229] RDX: 0000000000000000 RSI: ffff88800ee4ac98 RDI: ffff88800b16d0a8
[   64.147502][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   64.147839][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   64.148193][  T229] R13: ffff88800ee4a128 R14: ffff88800ee4a008 R15: ffff88800ee4a000
[   64.148532][  T229] FS:  00007f236d93a740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   64.148935][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.149230][  T229] CR2: 00007f236daee733 CR3: 000000000a4ea003 CR4: 0000000000772ef0
[   64.149573][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   64.149910][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   64.150261][  T229] PKRU: 55555554
[   64.150439][  T229] Call Trace:
[   64.150611][  T229]  <TASK>
[ 64.150730][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 64.150963][ T229] ? __warn (kernel/panic.c:748) 
[ 64.151156][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 64.151395][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 64.151630][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 64.151810][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 64.152038][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 64.152293][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 64.152541][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 64.152839][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 64.153093][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 64.153332][ T229] register_netdevice (net/core/dev.c:11003) 
[ 64.153566][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 64.153811][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 64.154067][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 64.154370][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 64.154682][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 64.154987][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 64.155229][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 64.155472][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 64.155763][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 64.155991][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 64.156233][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 64.156468][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 64.156701][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 64.156882][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 64.157128][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 64.157365][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 64.157611][ T229] ksys_write (fs/read_write.c:731) 
[ 64.157785][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 64.158022][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 64.158261][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   64.158541][  T229] RIP: 0033:0x7f236da7bb77
[ 64.158771][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   64.159564][  T229] RSP: 002b:00007fffa73d78b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   64.159900][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   64.160240][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   64.160574][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   64.160908][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   64.161250][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [   76.146342][  T229] ------------[ cut here ]------------
| [ 76.146803][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   76.147262][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   76.148134][  T229] Tainted: [W]=WARN
[   76.148305][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 76.148583][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.148860][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   76.149676][  T229] RSP: 0018:ffffc90000787520 EFLAGS: 00010246
[   76.149951][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   76.150283][  T229] RDX: 0000000000000000 RSI: ffff88800ec32c98 RDI: ffff88800b16d0f8
[   76.150604][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   76.150924][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   76.151256][  T229] R13: ffff88800ec32128 R14: ffff88800ec32008 R15: ffff88800ec32000
[   76.151578][  T229] FS:  00007f236d93a740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   76.151947][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.152343][  T229] CR2: 00007f54a8e85a00 CR3: 000000000a4ea001 CR4: 0000000000772ef0
[   76.152675][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   76.153002][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   76.153342][  T229] PKRU: 55555554
[   76.153514][  T229] Call Trace:
[   76.153684][  T229]  <TASK>
[ 76.153804][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.154026][ T229] ? __warn (kernel/panic.c:748) 
[ 76.154212][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.154434][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 76.154661][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 76.154836][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 76.155064][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 76.155301][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.155532][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 76.155811][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 76.156035][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 76.156280][ T229] register_netdevice (net/core/dev.c:11003) 
[ 76.156503][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 76.156738][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 76.156973][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 76.157267][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 76.157439][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 76.157726][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 76.158009][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 76.158303][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 76.158535][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 76.158815][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 76.159040][ T229] ? 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)) 
[ 76.159226][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 76.159454][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 76.159685][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 76.159908][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 76.160161][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 76.160423][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 76.160690][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 76.160914][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 76.161143][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 76.161367][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 76.161586][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 76.161813][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 76.162040][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 76.162267][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 76.162498][ T229] ? 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) 
[ 76.162739][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 76.162960][ T229] device_add (drivers/base/core.c:3672) 
[ 76.163194][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 76.163412][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 76.163651][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 76.163930][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 76.164223][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 76.164441][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 76.164668][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 76.164884][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 76.165120][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 76.165303][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 76.165526][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 76.165757][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 76.165987][ T229] ksys_write (fs/read_write.c:731) 
[ 76.166171][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 76.166403][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 76.166628][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   76.166891][  T229] RIP: 0033:0x7f236da7bb77
[ 76.167133][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   76.167853][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   76.168183][  T229] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f236da7bb77
[   76.168505][  T229] RDX: 0000000000000005 RSI: 00005561d7437340 RDI: 0000000000000001
[   76.168823][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   76.169145][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000005
[   76.169462][  T229] R13: 00007f236db37760 R14: 0000000000000005 R15: 00007f236db329c0
| [   76.202993][  T229] ------------[ cut here ]------------
| [ 76.203337][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   76.203737][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   76.204561][  T229] Tainted: [W]=WARN
[   76.204720][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 76.204964][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.205224][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   76.205887][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   76.206146][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   76.206436][  T229] RDX: 0000000000000000 RSI: ffff888009e02c98 RDI: ffff88800b16d0a8
[   76.206732][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   76.207021][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   76.207318][  T229] R13: ffff888009e02128 R14: ffff888009e02008 R15: ffff888009e02000
[   76.207605][  T229] FS:  00007f236d93a740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   76.208037][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.208298][  T229] CR2: 00007f54a8e85a00 CR3: 000000000a4ea001 CR4: 0000000000772ef0
[   76.208584][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   76.208874][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   76.209172][  T229] PKRU: 55555554
[   76.209332][  T229] Call Trace:
[   76.209486][  T229]  <TASK>
[ 76.209597][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.209794][ T229] ? __warn (kernel/panic.c:748) 
[ 76.209953][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.210164][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 76.210372][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 76.210528][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 76.210728][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 76.210947][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.211163][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 76.211413][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 76.211623][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 76.211836][ T229] register_netdevice (net/core/dev.c:11003) 
[ 76.212038][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 76.212258][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 76.212482][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 76.212742][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 76.213011][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 76.213292][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 76.213496][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 76.213708][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 76.213962][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 76.214173][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 76.214375][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 76.214581][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 76.214786][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 76.214951][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 76.215164][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 76.215381][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 76.215593][ T229] ksys_write (fs/read_write.c:731) 
[ 76.215749][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 76.215963][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 76.216175][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   76.216422][  T229] RIP: 0033:0x7f236da7bb77
[ 76.216627][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   76.217297][  T229] RSP: 002b:00007fffa73d91a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   76.217590][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   76.217879][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   76.218181][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   76.218471][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   76.218756][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [   83.296348][  T229] ------------[ cut here ]------------
| [ 83.296658][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   83.297089][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   83.297899][  T229] Tainted: [W]=WARN
[   83.298072][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 83.298327][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 83.298585][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   83.299360][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   83.299620][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   83.299913][  T229] RDX: 0000000000000000 RSI: ffff888009b72c98 RDI: ffff88800b16d0a8
[   83.300233][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   83.300528][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   83.300827][  T229] R13: ffff888009b72128 R14: ffff888009b72008 R15: ffff888009b72000
[   83.301130][  T229] FS:  00007f236d93a740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   83.301465][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   83.301716][  T229] CR2: 00007f54a901cb70 CR3: 000000000a4ea002 CR4: 0000000000772ef0
[   83.302014][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   83.302312][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   83.302613][  T229] PKRU: 55555554
[   83.302776][  T229] Call Trace:
[   83.302935][  T229]  <TASK>
[ 83.303058][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 83.303264][ T229] ? __warn (kernel/panic.c:748) 
[ 83.303423][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 83.303624][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 83.303837][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 83.303996][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 83.304210][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 83.304427][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 83.304639][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 83.304891][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 83.305111][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 83.305322][ T229] register_netdevice (net/core/dev.c:11003) 
[ 83.305531][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 83.305745][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 83.305965][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 83.306232][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 83.306516][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 83.306772][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 83.306974][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 83.307197][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 83.307455][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 83.307656][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 83.307862][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 83.308085][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 83.308296][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 83.308464][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 83.308671][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 83.308889][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 83.309114][ T229] ksys_write (fs/read_write.c:731) 
[ 83.309273][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 83.309487][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 83.309699][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   83.309943][  T229] RIP: 0033:0x7f236da7bb77
[ 83.310163][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   83.310828][  T229] RSP: 002b:00007fffa73d91a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   83.311151][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   83.311445][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   83.311738][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   83.312031][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   83.312339][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [   90.358625][  T229] ------------[ cut here ]------------
| [ 90.359098][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   90.359536][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   90.360416][  T229] Tainted: [W]=WARN
[   90.360586][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 90.360858][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.361142][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   90.361866][  T229] RSP: 0018:ffffc90000787520 EFLAGS: 00010246
[   90.362153][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   90.362476][  T229] RDX: 0000000000000000 RSI: ffff88800ee52c98 RDI: ffff88800b16d0f8
[   90.362793][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   90.363126][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   90.363448][  T229] R13: ffff88800ee52128 R14: ffff88800ee52008 R15: ffff88800ee52000
[   90.363765][  T229] FS:  00007f236d93a740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   90.364145][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.364413][  T229] CR2: 00005561d742e668 CR3: 000000000a4ea002 CR4: 0000000000772ef0
[   90.364836][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   90.365174][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   90.365501][  T229] PKRU: 55555554
[   90.365670][  T229] Call Trace:
[   90.365838][  T229]  <TASK>
[ 90.365958][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.366191][ T229] ? __warn (kernel/panic.c:748) 
[ 90.366365][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.366585][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 90.366816][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 90.366987][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 90.367220][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 90.367454][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.367695][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 90.367975][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 90.368219][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 90.368449][ T229] register_netdevice (net/core/dev.c:11003) 
[ 90.368681][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 90.368914][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 90.369175][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 90.369453][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 90.369633][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 90.369942][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 90.370231][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 90.370601][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 90.370836][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 90.371121][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 90.371349][ T229] ? 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)) 
[ 90.371524][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 90.371753][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 90.371980][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 90.372213][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 90.372442][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 90.372664][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 90.372930][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 90.373172][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 90.373389][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 90.373608][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 90.373826][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 90.374062][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 90.374285][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 90.374501][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 90.374744][ T229] ? 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) 
[ 90.374973][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 90.375208][ T229] device_add (drivers/base/core.c:3672) 
[ 90.375431][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 90.375649][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 90.375880][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 90.376175][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 90.376461][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 90.376681][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 90.376909][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 90.377139][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 90.377364][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 90.377541][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 90.377765][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 90.377993][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 90.378237][ T229] ksys_write (fs/read_write.c:731) 
[ 90.378408][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 90.378643][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 90.378869][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   90.379145][  T229] RIP: 0033:0x7f236da7bb77
[ 90.379372][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   90.380105][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   90.380429][  T229] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f236da7bb77
[   90.380746][  T229] RDX: 0000000000000005 RSI: 00005561d7437340 RDI: 0000000000000001
[   90.381080][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   90.381399][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000005
[   90.381711][  T229] R13: 00007f236db37760 R14: 0000000000000005 R15: 00007f236db329c0
| [   90.429700][  T229] ------------[ cut here ]------------
| [ 90.430003][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   90.430441][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   90.431236][  T229] Tainted: [W]=WARN
[   90.431378][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 90.431607][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.431842][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   90.432498][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   90.432730][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   90.433000][  T229] RDX: 0000000000000000 RSI: ffff88800b0c2c98 RDI: ffff88800b16d0a8
[   90.433278][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   90.433555][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   90.433826][  T229] R13: ffff88800b0c2128 R14: ffff88800b0c2008 R15: ffff88800b0c2000
[   90.434107][  T229] FS:  00007f236d93a740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   90.434419][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.434650][  T229] CR2: 00007fffa73d6fa0 CR3: 000000000a4ea006 CR4: 0000000000772ef0
[   90.434926][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   90.435205][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   90.435575][  T229] PKRU: 55555554
[   90.435716][  T229] Call Trace:
[   90.435854][  T229]  <TASK>
[ 90.435950][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.436151][ T229] ? __warn (kernel/panic.c:748) 
[ 90.436295][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.436479][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 90.436674][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 90.436817][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 90.437000][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 90.437209][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 90.437404][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 90.437644][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 90.437834][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 90.438024][ T229] register_netdevice (net/core/dev.c:11003) 
[ 90.438226][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 90.438420][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 90.438622][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 90.438868][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 90.439134][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 90.439377][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 90.439565][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 90.439758][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 90.439993][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 90.440194][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 90.440381][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 90.440572][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 90.440760][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 90.440911][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 90.441108][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 90.441293][ T229] ? 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) 
[ 90.441491][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 90.441685][ T229] ksys_write (fs/read_write.c:731) 
[ 90.441828][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 90.442008][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 90.442214][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 90.442410][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   90.442807][  T229] RIP: 0033:0x7f236da7bb77
[ 90.442997][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   90.443779][  T229] RSP: 002b:00007fffa73d7528 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   90.444063][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   90.444449][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   90.444725][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   90.444994][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   90.445276][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [   93.126680][  T229] ------------[ cut here ]------------
| [ 93.126989][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   93.127543][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   93.128367][  T229] Tainted: [W]=WARN
[   93.128524][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 93.128786][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.129043][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   93.129723][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   93.129980][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   93.130326][  T229] RDX: 0000000000000000 RSI: ffff88800b132c98 RDI: ffff88800b16d0a8
[   93.130624][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   93.130946][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   93.131255][  T229] R13: ffff88800b132128 R14: ffff88800b132008 R15: ffff88800b132000
[   93.131550][  T229] FS:  00007f236d93a740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   93.131888][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   93.132162][  T229] CR2: 00007fffa73da034 CR3: 000000000a4ea003 CR4: 0000000000772ef0
[   93.132471][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   93.132766][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   93.133071][  T229] PKRU: 55555554
[   93.133232][  T229] Call Trace:
[   93.133390][  T229]  <TASK>
[ 93.133503][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.133710][ T229] ? __warn (kernel/panic.c:748) 
[ 93.133871][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.134090][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 93.134304][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 93.134465][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 93.134676][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 93.134894][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 93.135124][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 93.135405][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 93.135638][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 93.135849][ T229] register_netdevice (net/core/dev.c:11003) 
[ 93.136083][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 93.136306][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 93.136536][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 93.136808][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 93.137106][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 93.137374][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 93.137586][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 93.137801][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 93.138106][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 93.138311][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 93.138518][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 93.138723][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 93.138934][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 93.139111][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 93.139319][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 93.139537][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 93.139751][ T229] ksys_write (fs/read_write.c:731) 
[ 93.139910][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 93.140141][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 93.140351][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   93.140601][  T229] RIP: 0033:0x7f236da7bb77
[ 93.140813][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   93.141497][  T229] RSP: 002b:00007fffa73d7528 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   93.141797][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   93.142111][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   93.142418][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   93.142703][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   93.142994][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [   95.635682][  T229] ------------[ cut here ]------------
| [ 95.636009][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   95.636540][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   95.637405][  T229] Tainted: [W]=WARN
[   95.637572][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 95.637859][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.638135][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   95.638855][  T229] RSP: 0018:ffffc90000787520 EFLAGS: 00010246
[   95.639138][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   95.639440][  T229] RDX: 0000000000000000 RSI: ffff88800b0aac98 RDI: ffff88800b16d0f8
[   95.639747][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   95.640071][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   95.640391][  T229] R13: ffff88800b0aa128 R14: ffff88800b0aa008 R15: ffff88800b0aa000
[   95.640696][  T229] FS:  00007f236d93a740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   95.641060][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   95.641428][  T229] CR2: 00005561d740e000 CR3: 000000000a4ea005 CR4: 0000000000772ef0
[   95.641749][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   95.642068][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   95.642379][  T229] PKRU: 55555554
[   95.642548][  T229] Call Trace:
[   95.642717][  T229]  <TASK>
[ 95.642833][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.643066][ T229] ? __warn (kernel/panic.c:748) 
[ 95.643238][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.643462][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 95.643691][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 95.643859][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 95.644094][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 95.644338][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.644568][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 95.644856][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 95.645093][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 95.645319][ T229] register_netdevice (net/core/dev.c:11003) 
[ 95.645543][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 95.645776][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 95.646015][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 95.646307][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 95.646477][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 95.646765][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 95.647090][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 95.647373][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 95.647606][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 95.647885][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 95.648120][ T229] ? 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)) 
[ 95.648286][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 95.648513][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 95.648751][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 95.648972][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 95.649200][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 95.649424][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 95.649694][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 95.649916][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 95.650148][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 95.650375][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 95.650593][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 95.650818][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 95.651035][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 95.651261][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 95.651481][ T229] ? 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) 
[ 95.651717][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 95.651951][ T229] device_add (drivers/base/core.c:3672) 
[ 95.652171][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 95.652382][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 95.652613][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 95.652881][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 95.653160][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 95.653368][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 95.653587][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 95.653815][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 95.654029][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 95.654206][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 95.654418][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 95.654632][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 95.654849][ T229] ksys_write (fs/read_write.c:731) 
[ 95.655039][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 95.655269][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 95.655479][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   95.655736][  T229] RIP: 0033:0x7f236da7bb77
[ 95.655949][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   95.656683][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   95.656995][  T229] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f236da7bb77
[   95.657311][  T229] RDX: 0000000000000005 RSI: 00005561d7437340 RDI: 0000000000000001
[   95.657615][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   95.657929][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000005
[   95.658248][  T229] R13: 00007f236db37760 R14: 0000000000000005 R15: 00007f236db329c0
| [   95.699995][  T229] ------------[ cut here ]------------
| [ 95.700319][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   95.700693][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   95.701473][  T229] Tainted: [W]=WARN
[   95.701619][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 95.701874][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.702130][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   95.702785][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   95.703020][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   95.703316][  T229] RDX: 0000000000000000 RSI: ffff88800ee4ac98 RDI: ffff88800b16d0a8
[   95.703590][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   95.703868][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   95.704151][  T229] R13: ffff88800ee4a128 R14: ffff88800ee4a008 R15: ffff88800ee4a000
[   95.704432][  T229] FS:  00007f236d93a740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   95.704755][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   95.704986][  T229] CR2: 00005561d740e000 CR3: 000000000a4ea005 CR4: 0000000000772ef0
[   95.705269][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   95.705644][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   95.705928][  T229] PKRU: 55555554
[   95.706234][  T229] Call Trace:
[   95.706380][  T229]  <TASK>
[ 95.706478][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.706668][ T229] ? __warn (kernel/panic.c:748) 
[ 95.706819][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.707016][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 95.707418][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 95.707566][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 95.707759][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 95.707957][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.708269][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 95.708510][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 95.708703][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 95.708900][ T229] register_netdevice (net/core/dev.c:11003) 
[ 95.709202][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 95.709402][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 95.709605][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 95.709861][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 95.710223][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 95.710473][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 95.710666][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 95.710867][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 95.711236][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 95.711426][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 95.711614][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 95.711962][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 95.712444][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 95.712600][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 95.712791][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 95.713274][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 95.713471][ T229] ksys_write (fs/read_write.c:731) 
[ 95.713616][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 95.713814][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 95.714298][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   95.714549][  T229] RIP: 0033:0x7f236da7bb77
[ 95.714760][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   95.715584][  T229] RSP: 002b:00007fffa73d79e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   95.715900][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   95.716261][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   95.716672][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   95.716969][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   95.717280][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [   98.123625][  T229] ------------[ cut here ]------------
| [ 98.123919][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   98.124319][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   98.125264][  T229] Tainted: [W]=WARN
[   98.125463][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.125712][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.126026][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   98.126776][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[   98.127096][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   98.127447][  T229] RDX: 0000000000000000 RSI: ffff88800ec32c98 RDI: ffff88800b16d0a8
[   98.127778][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[   98.128264][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[   98.128718][  T229] R13: ffff88800ec32128 R14: ffff88800ec32008 R15: ffff88800ec32000
[   98.129185][  T229] FS:  00007f236d93a740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   98.129710][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.130126][  T229] CR2: 00007f236daee733 CR3: 000000000a4ea004 CR4: 0000000000772ef0
[   98.130591][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   98.131082][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   98.131557][  T229] PKRU: 55555554
[   98.131793][  T229] Call Trace:
[   98.132036][  T229]  <TASK>
[ 98.132227][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.132567][ T229] ? __warn (kernel/panic.c:748) 
[ 98.132815][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.133148][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 98.133476][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 98.133712][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 98.134035][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 98.134402][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.134732][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 98.135140][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 98.135470][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 98.135788][ T229] register_netdevice (net/core/dev.c:11003) 
[ 98.136132][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 98.136466][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 98.136804][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 98.137247][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 98.137677][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 98.138106][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 98.138422][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 98.138756][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 98.139187][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 98.139520][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 98.139840][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 98.140180][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 98.140509][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 98.140762][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 98.141104][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 98.141437][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 98.141783][ T229] ksys_write (fs/read_write.c:731) 
[ 98.142032][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 98.142396][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 98.142728][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   98.143119][  T229] RIP: 0033:0x7f236da7bb77
[ 98.143439][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   98.144460][  T229] RSP: 002b:00007fffa73d79e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   98.144926][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[   98.145408][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[   98.145878][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[   98.146362][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[   98.146826][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [  100.350222][  T229] ------------[ cut here ]------------
| [ 100.350641][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  100.351074][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  100.352005][  T229] Tainted: [W]=WARN
[  100.352176][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 100.352445][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.352721][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  100.353442][  T229] RSP: 0018:ffffc90000787520 EFLAGS: 00010246
[  100.353704][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  100.354020][  T229] RDX: 0000000000000000 RSI: ffff888009e02c98 RDI: ffff88800b16d0f8
[  100.354337][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  100.354651][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  100.354960][  T229] R13: ffff888009e02128 R14: ffff888009e02008 R15: ffff888009e02000
[  100.355271][  T229] FS:  00007f236d93a740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  100.355629][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.355891][  T229] CR2: 00007f3d87cfe000 CR3: 000000000a4ea006 CR4: 0000000000772ef0
[  100.356209][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  100.356515][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  100.356831][  T229] PKRU: 55555554
[  100.356986][  T229] Call Trace:
[  100.357153][  T229]  <TASK>
[ 100.357262][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.357471][ T229] ? __warn (kernel/panic.c:748) 
[ 100.357635][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.357844][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 100.358068][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 100.358229][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 100.358440][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 100.358664][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.358889][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 100.359160][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 100.359375][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 100.359588][ T229] register_netdevice (net/core/dev.c:11003) 
[ 100.359800][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 100.360023][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 100.360258][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 100.360524][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 100.360695][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 100.360969][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 100.361275][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 100.361541][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 100.361758][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 100.362021][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 100.362242][ T229] ? 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)) 
[ 100.362408][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 100.362624][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 100.362845][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 100.363061][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 100.363270][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 100.363479][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 100.363732][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 100.363940][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 100.364154][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 100.364370][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 100.364575][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 100.364793][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 100.365000][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 100.365212][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 100.365423][ T229] ? 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) 
[ 100.365640][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 100.365856][ T229] device_add (drivers/base/core.c:3672) 
[ 100.366077][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 100.366283][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 100.366504][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 100.366769][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 100.367040][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 100.367258][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 100.367477][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 100.367680][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 100.367892][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 100.368068][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 100.368279][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 100.368494][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 100.368713][ T229] ksys_write (fs/read_write.c:731) 
[ 100.368876][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 100.369103][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 100.369311][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.369567][  T229] RIP: 0033:0x7f236da7bb77
[ 100.369778][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  100.370500][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  100.370810][  T229] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f236da7bb77
[  100.371123][  T229] RDX: 0000000000000005 RSI: 00005561d7437340 RDI: 0000000000000001
[  100.371430][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  100.371738][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000005
[  100.372041][  T229] R13: 00007f236db37760 R14: 0000000000000005 R15: 00007f236db329c0
| [  100.406880][  T229] ------------[ cut here ]------------
| [ 100.408447][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  100.408833][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  100.409609][  T229] Tainted: [W]=WARN
[  100.409845][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 100.410097][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.410333][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  100.411001][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[  100.411246][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  100.411522][  T229] RDX: 0000000000000000 RSI: ffff888009b72c98 RDI: ffff88800b16d0a8
[  100.411796][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  100.412086][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  100.412376][  T229] R13: ffff888009b72128 R14: ffff888009b72008 R15: ffff888009b72000
[  100.412662][  T229] FS:  00007f236d93a740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  100.412986][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.413234][  T229] CR2: 00007fffa73d6fa0 CR3: 000000000a4ea006 CR4: 0000000000772ef0
[  100.413511][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  100.413791][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  100.414072][  T229] PKRU: 55555554
[  100.414213][  T229] Call Trace:
[  100.414354][  T229]  <TASK>
[ 100.414457][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.414645][ T229] ? __warn (kernel/panic.c:748) 
[ 100.414792][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.414979][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 100.415184][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 100.415329][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 100.415517][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 100.415718][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.415918][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 100.416163][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 100.416355][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 100.416547][ T229] register_netdevice (net/core/dev.c:11003) 
[ 100.416751][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 100.416951][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 100.417166][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 100.417407][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 100.417674][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 100.417919][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 100.418116][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 100.418312][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 100.418553][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 100.418736][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 100.418926][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 100.419122][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 100.419317][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 100.419469][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 100.419659][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 100.419845][ T229] ? 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) 
[ 100.420043][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 100.420249][ T229] ksys_write (fs/read_write.c:731) 
[ 100.420400][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 100.420587][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 100.420793][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 100.420983][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.421221][  T229] RIP: 0033:0x7f236da7bb77
[ 100.421419][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  100.422075][  T229] RSP: 002b:00007fffa73d7528 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  100.422365][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[  100.422652][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[  100.422932][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  100.423220][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[  100.423501][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [  102.603711][  T229] ------------[ cut here ]------------
| [ 102.603961][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  102.604410][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  102.605211][  T229] Tainted: [W]=WARN
[  102.605359][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 102.605592][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.605843][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  102.606518][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[  102.606765][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  102.607073][  T229] RDX: 0000000000000000 RSI: ffff88800ee52c98 RDI: ffff88800b16d0a8
[  102.607358][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  102.607645][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  102.607940][  T229] R13: ffff88800ee52128 R14: ffff88800ee52008 R15: ffff88800ee52000
[  102.608245][  T229] FS:  00007f236d93a740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  102.608581][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  102.608820][  T229] CR2: 00007fffa73d6ff8 CR3: 000000000a4ea003 CR4: 0000000000772ef0
[  102.609114][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  102.609406][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  102.609687][  T229] PKRU: 55555554
[  102.609830][  T229] Call Trace:
[  102.609974][  T229]  <TASK>
[ 102.610085][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.610277][ T229] ? __warn (kernel/panic.c:748) 
[ 102.610433][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.610629][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 102.610830][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 102.610975][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 102.611195][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 102.611407][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.611615][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 102.611855][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 102.612063][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 102.612263][ T229] register_netdevice (net/core/dev.c:11003) 
[ 102.612466][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 102.612668][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 102.612875][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 102.613131][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 102.613391][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 102.613641][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 102.613831][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 102.614033][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 102.614295][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 102.614483][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 102.614673][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 102.614870][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 102.615096][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 102.615251][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 102.615445][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 102.615652][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 102.615854][ T229] ksys_write (fs/read_write.c:731) 
[ 102.616000][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 102.616209][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 102.616418][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  102.616678][  T229] RIP: 0033:0x7f236da7bb77
[ 102.616873][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  102.617579][  T229] RSP: 002b:00007fffa73d7528 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  102.617873][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[  102.618184][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[  102.618485][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  102.618791][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[  102.619119][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [  104.665625][  T229] ------------[ cut here ]------------
| [ 104.666041][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  104.666475][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  104.668317][  T229] Tainted: [W]=WARN
[  104.668490][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 104.668759][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.669030][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  104.669868][  T229] RSP: 0018:ffffc90000787520 EFLAGS: 00010246
[  104.670182][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  104.670489][  T229] RDX: 0000000000000000 RSI: ffff88800b0c2c98 RDI: ffff88800b16d0f8
[  104.670796][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  104.671115][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  104.671428][  T229] R13: ffff88800b0c2128 R14: ffff88800b0c2008 R15: ffff88800b0c2000
[  104.671738][  T229] FS:  00007f236d93a740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  104.672108][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  104.672377][  T229] CR2: 00005561d740e000 CR3: 000000000a4ea005 CR4: 0000000000772ef0
[  104.672689][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  104.672994][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  104.673311][  T229] PKRU: 55555554
[  104.673467][  T229] Call Trace:
[  104.673728][  T229]  <TASK>
[ 104.673838][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.674059][ T229] ? __warn (kernel/panic.c:748) 
[ 104.674222][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.674433][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 104.674652][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 104.674818][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 104.675027][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 104.675265][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.675483][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 104.675747][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 104.675965][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 104.676195][ T229] register_netdevice (net/core/dev.c:11003) 
[ 104.676411][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 104.676633][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 104.676886][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 104.677164][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 104.677324][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 104.677595][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 104.677858][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 104.678132][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 104.678356][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 104.678616][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 104.678826][ T229] ? 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)) 
[ 104.678982][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 104.679211][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 104.679424][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 104.679633][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 104.679849][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 104.680071][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 104.680324][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 104.680532][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 104.680734][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 104.680941][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 104.681159][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 104.681382][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 104.681589][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 104.681793][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 104.682006][ T229] ? 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) 
[ 104.682233][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 104.682447][ T229] device_add (drivers/base/core.c:3672) 
[ 104.682658][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 104.682867][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 104.683098][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 104.683365][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 104.683632][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.683835][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 104.684061][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.684266][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 104.684484][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 104.684648][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 104.684858][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 104.685089][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 104.685303][ T229] ksys_write (fs/read_write.c:731) 
[ 104.685462][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 104.685681][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 104.685893][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  104.686163][  T229] RIP: 0033:0x7f236da7bb77
[ 104.686377][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  104.687092][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  104.687409][  T229] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f236da7bb77
[  104.687710][  T229] RDX: 0000000000000005 RSI: 00005561d7437340 RDI: 0000000000000001
[  104.688016][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  104.688333][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000005
[  104.688636][  T229] R13: 00007f236db37760 R14: 0000000000000005 R15: 00007f236db329c0
| [  104.731948][  T229] ------------[ cut here ]------------
| [ 104.732802][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  104.733194][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  104.733968][  T229] Tainted: [W]=WARN
[  104.734119][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 104.734351][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.734586][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  104.735240][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[  104.735480][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  104.735755][  T229] RDX: 0000000000000000 RSI: ffff88800b132c98 RDI: ffff88800b16d0a8
[  104.736034][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  104.736326][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  104.736602][  T229] R13: ffff88800b132128 R14: ffff88800b132008 R15: ffff88800b132000
[  104.736876][  T229] FS:  00007f236d93a740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  104.737203][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  104.737434][  T229] CR2: 000055d706850050 CR3: 000000000a4ea006 CR4: 0000000000772ef0
[  104.737713][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  104.737985][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  104.738272][  T229] PKRU: 55555554
[  104.738413][  T229] Call Trace:
[  104.738555][  T229]  <TASK>
[ 104.738651][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.738945][ T229] ? __warn (kernel/panic.c:748) 
[ 104.739104][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.739291][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 104.739485][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 104.739631][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 104.739825][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 104.740029][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.740234][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 104.740474][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 104.740666][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 104.740858][ T229] register_netdevice (net/core/dev.c:11003) 
[ 104.741062][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 104.741264][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 104.741464][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 104.741704][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 104.741962][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 104.742215][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.742418][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 104.742616][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 104.742856][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.743043][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 104.743241][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 104.743433][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 104.743626][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 104.743782][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 104.743976][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 104.744185][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 104.744382][ T229] ksys_write (fs/read_write.c:731) 
[ 104.744526][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 104.744728][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 104.744918][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  104.745163][  T229] RIP: 0033:0x7f236da7bb77
[ 104.745359][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  104.745997][  T229] RSP: 002b:00007fffa73d7788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  104.746286][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[  104.746563][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[  104.746837][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  104.747116][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[  104.747389][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [  106.680468][  T229] ------------[ cut here ]------------
| [ 106.680778][ T229] WARNING: CPU: 0 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  106.682241][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  106.683023][  T229] Tainted: [W]=WARN
[  106.683303][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 106.683544][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.683784][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  106.684506][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[  106.684746][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  106.685029][  T229] RDX: 0000000000000000 RSI: ffff88800b0aac98 RDI: ffff88800b16d0a8
[  106.685324][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  106.685604][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  106.685880][  T229] R13: ffff88800b0aa128 R14: ffff88800b0aa008 R15: ffff88800b0aa000
[  106.686166][  T229] FS:  00007f236d93a740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  106.686486][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  106.686720][  T229] CR2: 00007fffa73da034 CR3: 000000000a4ea004 CR4: 0000000000772ef0
[  106.686999][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  106.687291][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  106.687571][  T229] PKRU: 55555554
[  106.687714][  T229] Call Trace:
[  106.687853][  T229]  <TASK>
[ 106.687949][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.688142][ T229] ? __warn (kernel/panic.c:748) 
[ 106.688291][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.688481][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 106.688680][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 106.688836][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 106.689029][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 106.689238][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.689435][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 106.689671][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 106.689867][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 106.690067][ T229] register_netdevice (net/core/dev.c:11003) 
[ 106.690259][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 106.690457][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 106.690664][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 106.690903][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 106.691166][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 106.691410][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.691601][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 106.691798][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 106.692044][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.692241][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 106.692438][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 106.692634][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 106.692829][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 106.692983][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 106.693191][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 106.693395][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 106.693593][ T229] ksys_write (fs/read_write.c:731) 
[ 106.693740][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 106.693941][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 106.694141][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  106.694374][  T229] RIP: 0033:0x7f236da7bb77
[ 106.694570][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  106.695232][  T229] RSP: 002b:00007fffa73d7788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  106.695518][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[  106.695796][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[  106.696089][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  106.696366][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[  106.696646][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [  108.432353][  T229] ------------[ cut here ]------------
| [ 108.432942][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  108.433625][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  108.435020][  T229] Tainted: [W]=WARN
[  108.435323][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 108.435786][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.436281][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  108.437610][  T229] RSP: 0018:ffffc90000787520 EFLAGS: 00010246
[  108.438101][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  108.438650][  T229] RDX: 0000000000000000 RSI: ffff88800ee4ac98 RDI: ffff88800b16d0f8
[  108.439210][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  108.439758][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  108.440327][  T229] R13: ffff88800ee4a128 R14: ffff88800ee4a008 R15: ffff88800ee4a000
[  108.440875][  T229] FS:  00007f236d93a740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  108.441555][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  108.442025][  T229] CR2: 00005561d740e000 CR3: 000000000a4ea001 CR4: 0000000000772ef0
[  108.442601][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  108.443343][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  108.443879][  T229] PKRU: 55555554
[  108.444175][  T229] Call Trace:
[  108.444468][  T229]  <TASK>
[ 108.444633][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.444984][ T229] ? __warn (kernel/panic.c:748) 
[ 108.445256][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.445563][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 108.445940][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 108.446246][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 108.446616][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 108.447007][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.447424][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 108.447906][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 108.448302][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 108.448669][ T229] register_netdevice (net/core/dev.c:11003) 
[ 108.449094][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 108.449497][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 108.449910][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 108.450400][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 108.450686][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 108.451108][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 108.451525][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 108.451943][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 108.452353][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 108.452826][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 108.453246][ T229] ? 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)) 
[ 108.453478][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 108.453722][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 108.453964][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 108.454202][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 108.454426][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 108.454661][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 108.454937][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 108.455173][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 108.455391][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 108.455654][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 108.456019][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 108.456419][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 108.456796][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 108.457203][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 108.457578][ T229] ? 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) 
[ 108.457962][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 108.458368][ T229] device_add (drivers/base/core.c:3672) 
[ 108.458702][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 108.459031][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 108.459440][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 108.459916][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 108.460419][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.460785][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 108.461215][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.461582][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 108.461960][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 108.462197][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 108.462438][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 108.462680][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 108.462911][ T229] ksys_write (fs/read_write.c:731) 
[ 108.463097][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 108.463335][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 108.463560][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  108.463851][  T229] RIP: 0033:0x7f236da7bb77
[ 108.464096][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  108.464876][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  108.465236][  T229] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f236da7bb77
[  108.465574][  T229] RDX: 0000000000000005 RSI: 00005561d7437340 RDI: 0000000000000001
[  108.465936][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  108.466283][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000005
[  108.466619][  T229] R13: 00007f236db37760 R14: 0000000000000005 R15: 00007f236db329c0
| [  108.583923][  T229] ------------[ cut here ]------------
| [ 108.584311][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  108.584744][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  108.585625][  T229] Tainted: [W]=WARN
[  108.585823][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 108.586098][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.586370][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  108.587093][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[  108.587404][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  108.587714][  T229] RDX: 0000000000000000 RSI: ffff88800ec32c98 RDI: ffff88800b16d0a8
[  108.588022][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  108.588338][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  108.588649][  T229] R13: ffff88800ec32128 R14: ffff88800ec32008 R15: ffff88800ec32000
[  108.588957][  T229] FS:  00007f236d93a740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  108.589478][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  108.589740][  T229] CR2: 00005561d7437340 CR3: 000000000a4ea006 CR4: 0000000000772ef0
[  108.590061][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  108.590382][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  108.590684][  T229] PKRU: 55555554
[  108.590847][  T229] Call Trace:
[  108.591014][  T229]  <TASK>
[ 108.591139][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.591356][ T229] ? __warn (kernel/panic.c:748) 
[ 108.591527][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.591747][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 108.591973][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 108.592151][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 108.592375][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 108.592618][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.592847][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 108.593123][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 108.593345][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 108.593564][ T229] register_netdevice (net/core/dev.c:11003) 
[ 108.593789][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 108.594020][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 108.594325][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 108.594600][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 108.594893][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 108.595178][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.595399][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 108.595627][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 108.595897][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.596119][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 108.596340][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 108.596567][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 108.596789][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 108.596967][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 108.597208][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 108.597433][ T229] ? 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) 
[ 108.597661][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 108.597889][ T229] ksys_write (fs/read_write.c:731) 
[ 108.598070][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 108.598289][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 108.598513][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 108.598731][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  108.598998][  T229] RIP: 0033:0x7f236da7bb77
[ 108.599239][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  108.599951][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  108.600287][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[  108.600603][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[  108.600919][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  108.601240][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[  108.601574][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [  109.181985][  T229] ------------[ cut here ]------------
| [ 109.182331][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  109.182769][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  109.183651][  T229] Tainted: [W]=WARN
[  109.183824][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 109.184106][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.184387][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  109.185120][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[  109.185388][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  109.185681][  T229] RDX: 0000000000000000 RSI: ffff888009e02c98 RDI: ffff88800b16d0a8
[  109.185973][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  109.186277][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  109.186571][  T229] R13: ffff888009e02128 R14: ffff888009e02008 R15: ffff888009e02000
[  109.186866][  T229] FS:  00007f236d93a740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  109.187217][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  109.187466][  T229] CR2: 00005561d7437340 CR3: 000000000a4ea004 CR4: 0000000000772ef0
[  109.187767][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  109.188076][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  109.188383][  T229] PKRU: 55555554
[  109.188556][  T229] Call Trace:
[  109.188717][  T229]  <TASK>
[ 109.188834][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.189036][ T229] ? __warn (kernel/panic.c:748) 
[ 109.189211][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.189417][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 109.189640][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 109.189810][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 109.190027][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 109.190276][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.190510][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 109.190787][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 109.191020][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 109.191255][ T229] register_netdevice (net/core/dev.c:11003) 
[ 109.191480][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 109.191714][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 109.191947][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 109.192237][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 109.192547][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 109.192829][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 109.193057][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 109.193284][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 109.193558][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 109.193778][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 109.193996][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 109.194237][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 109.194460][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 109.194640][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 109.194865][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 109.195097][ T229] ? 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) 
[ 109.195325][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 109.195558][ T229] ksys_write (fs/read_write.c:731) 
[ 109.195733][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 109.195954][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 109.196194][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 109.196415][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  109.196683][  T229] RIP: 0033:0x7f236da7bb77
[ 109.196907][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  109.197653][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  109.197974][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[  109.198299][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[  109.198615][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  109.198936][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[  109.199263][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [  116.654017][  T229] ------------[ cut here ]------------
| [ 116.654315][ T229] WARNING: CPU: 2 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  116.654736][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  116.655560][  T229] Tainted: [W]=WARN
[  116.655717][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 116.655966][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.657221][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  116.657917][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[  116.658202][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  116.658509][  T229] RDX: 0000000000000000 RSI: ffff888009b72c98 RDI: ffff88800b16d0a8
[  116.658820][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  116.659129][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  116.659436][  T229] R13: ffff888009b72128 R14: ffff888009b72008 R15: ffff888009b72000
[  116.659729][  T229] FS:  00007f236d93a740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  116.660085][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  116.660343][  T229] CR2: 00007f236daee733 CR3: 000000000a4ea004 CR4: 0000000000772ef0
[  116.660647][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  116.660942][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  116.661248][  T229] PKRU: 55555554
[  116.661416][  T229] Call Trace:
[  116.661574][  T229]  <TASK>
[ 116.661687][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.661899][ T229] ? __warn (kernel/panic.c:748) 
[ 116.662069][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.662288][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 116.662502][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 116.662663][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 116.662882][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 116.663115][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.663328][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 116.663582][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 116.663799][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 116.664014][ T229] register_netdevice (net/core/dev.c:11003) 
[ 116.664234][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 116.664456][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 116.664704][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 116.664983][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 116.665291][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 116.665568][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 116.665800][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 116.666032][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 116.666328][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 116.666550][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 116.666764][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 116.666983][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 116.667209][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 116.667389][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 116.667602][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 116.667827][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 116.668044][ T229] ksys_write (fs/read_write.c:731) 
[ 116.668228][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 116.668449][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 116.668653][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  116.668917][  T229] RIP: 0033:0x7f236da7bb77
[ 116.669134][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  116.669895][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  116.670248][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[  116.670582][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[  116.670901][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  116.671219][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000002
[  116.671547][  T229] R13: 00007f236db37760 R14: 0000000000000002 R15: 00007f236db329c0
| [  118.811208][  T229] ------------[ cut here ]------------
| [ 118.811601][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  118.812040][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  118.813112][  T229] Tainted: [W]=WARN
[  118.813288][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 118.813563][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.813846][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  118.814633][  T229] RSP: 0018:ffffc90000787520 EFLAGS: 00010246
[  118.814913][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  118.815256][  T229] RDX: 0000000000000000 RSI: ffff88800ee52c98 RDI: ffff88800b16d0f8
[  118.815593][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  118.815919][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  118.816256][  T229] R13: ffff88800ee52128 R14: ffff88800ee52008 R15: ffff88800ee52000
[  118.816584][  T229] FS:  00007f236d93a740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  118.816960][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  118.817242][  T229] CR2: 00007f54a8e85a00 CR3: 000000000a4ea005 CR4: 0000000000772ef0
[  118.817572][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  118.817907][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  118.818243][  T229] PKRU: 55555554
[  118.818410][  T229] Call Trace:
[  118.818579][  T229]  <TASK>
[ 118.818694][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.818917][ T229] ? __warn (kernel/panic.c:748) 
[ 118.819101][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.819334][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 118.819564][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 118.819738][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 118.819960][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 118.820205][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.820435][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 118.820721][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 118.820949][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 118.821186][ T229] register_netdevice (net/core/dev.c:11003) 
[ 118.821417][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 118.821652][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 118.821889][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 118.822185][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 118.822368][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 118.822659][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 118.822949][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 118.823241][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 118.823474][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 118.823768][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 118.823996][ T229] ? 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)) 
[ 118.824176][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 118.824406][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 118.824637][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 118.824863][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 118.825089][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 118.825322][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 118.825594][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 118.825818][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 118.826074][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 118.826297][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 118.826517][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 118.826745][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 118.826965][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 118.827285][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 118.827509][ T229] ? 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) 
[ 118.827747][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 118.827973][ T229] device_add (drivers/base/core.c:3672) 
[ 118.828236][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 118.828455][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 118.828686][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 118.828971][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 118.829266][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.829494][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 118.829720][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.829942][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 118.830188][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 118.830365][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 118.830591][ T229] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 118.830824][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 118.831044][ T229] ksys_write (fs/read_write.c:731) 
[ 118.831212][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 118.831430][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 118.831647][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  118.831899][  T229] RIP: 0033:0x7f236da7bb77
[ 118.832118][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  118.832851][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  118.833169][  T229] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f236da7bb77
[  118.833478][  T229] RDX: 0000000000000005 RSI: 00005561d7437340 RDI: 0000000000000001
[  118.833783][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  118.834100][  T229] R10: 00007f236daee3e0 R11: 0000000000000246 R12: 0000000000000005
[  118.834407][  T229] R13: 00007f236db37760 R14: 0000000000000005 R15: 00007f236db329c0
| [  118.955943][  T229] ------------[ cut here ]------------
| [ 118.956299][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  118.956683][  T229] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  118.957465][  T229] Tainted: [W]=WARN
[  118.957626][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 118.957855][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.958184][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  118.958822][  T229] RSP: 0018:ffffc90000787910 EFLAGS: 00010246
[  118.959119][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  118.959392][  T229] RDX: 0000000000000000 RSI: ffff88800b132c98 RDI: ffff88800b16d0a8
[  118.959666][  T229] RBP: ffffffff89523440 R08: 0000000000000000 R09: fffffbfff0e7d83c
[  118.959934][  T229] R10: ffffffff873ec1e7 R11: ffff88800b16c5c0 R12: 0000000000000000
[  118.960225][  T229] R13: ffff88800b132128 R14: ffff88800b132008 R15: ffff88800b132000
[  118.960500][  T229] FS:  00007f236d93a740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  118.960817][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  118.961200][  T229] CR2: 00005561d7437340 CR3: 000000000a4ea005 CR4: 0000000000772ef0
[  118.961477][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  118.961756][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  118.962027][  T229] PKRU: 55555554
[  118.962177][  T229] Call Trace:
[  118.962326][  T229]  <TASK>
[ 118.962422][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.962608][ T229] ? __warn (kernel/panic.c:748) 
[ 118.962752][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.962944][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 118.963150][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 118.963294][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 118.963477][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 118.963676][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.963870][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 118.964112][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 118.964310][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 118.964498][ T229] register_netdevice (net/core/dev.c:11003) 
[ 118.964688][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 118.964883][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 118.965095][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 118.965336][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 118.965595][ T229] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 118.965836][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.966021][ T229] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 118.966223][ T229] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 118.966461][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.966647][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 118.966837][ T229] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 118.967023][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 118.967226][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 118.967378][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 118.967567][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 118.967751][ T229] ? 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) 
[ 118.967945][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 118.968147][ T229] ksys_write (fs/read_write.c:731) 
[ 118.968292][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 118.968474][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 118.968670][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 118.968857][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  118.969098][  T229] RIP: 0033:0x7f236da7bb77
[ 118.969290][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  118.969940][  T229] RSP: 002b:00007fffa73d9e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  118.970228][  T229] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f236da7bb77
[  118.970502][  T229] RDX: 0000000000000002 RSI: 00005561d7437340 RDI: 0000000000000001
[  118.970783][  T229] RBP: 00005561d7437340 R08: 0000000000000000 R09: 00007f236daee4e0
[  118.971063][  T229] R10: 00007f236daee3e0 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