======================================
| 0
| xx__-> [   11.773214][  T228] ------------[ cut here ]------------
| [ 11.774046][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   11.774937][  T228] Modules linked in: netdevsim
[   11.775970][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.776460][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.776984][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   11.778299][  T228] RSP: 0018:ffffc90000a67520 EFLAGS: 00010246
[   11.778776][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.779378][  T228] RDX: 0000000000000000 RSI: ffff88800bdb2c98 RDI: ffff888004e60b78
[   11.779917][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   11.780489][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   11.781001][  T228] R13: ffff88800bdb2128 R14: ffff88800bdb2008 R15: ffff88800bdb2000
[   11.781566][  T228] FS:  00007ff309d33740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   11.782172][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.782500][  T228] CR2: 000055f776af9338 CR3: 0000000009422005 CR4: 0000000000772ef0
[   11.782839][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.783242][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.783566][  T228] PKRU: 55555554
[   11.783754][  T228] Call Trace:
[   11.783930][  T228]  <TASK>
[ 11.784045][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.784287][ T228] ? __warn (kernel/panic.c:748) 
[ 11.784470][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.784688][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.784917][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.785078][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.785306][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.785566][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.785817][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.786107][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 11.786352][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.786577][ T228] register_netdevice (net/core/dev.c:11003) 
[ 11.786839][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.787119][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.787399][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.787701][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 11.787891][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.788208][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.788513][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 11.788825][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 11.789087][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 11.789407][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 11.789648][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 11.789825][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 11.790053][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 11.790298][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 11.790513][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 11.790732][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 11.790993][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 11.791304][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 11.791518][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 11.791724][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.791945][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.792238][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 11.792462][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 11.792676][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 11.792897][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.793149][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 11.793369][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 11.793575][ T228] device_add (drivers/base/core.c:3672) 
[ 11.793787][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 11.794032][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 11.794282][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 11.794566][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 11.794857][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.795113][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 11.795483][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.795808][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 11.796241][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 11.796536][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 11.796903][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 11.797356][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 11.797762][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 11.798177][ T228] ksys_write (fs/read_write.c:731) 
[ 11.798448][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 11.798850][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 11.799248][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.799642][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.800069][  T228] RIP: 0033:0x7ff309e74b77
[ 11.800519][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   11.801810][  T228] RSP: 002b:00007ffccd1e60a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   11.802387][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff309e74b77
[   11.802909][  T228] RDX: 0000000000000004 RSI: 000055f776af8330 RDI: 0000000000000001
[   11.803434][  T228] RBP: 000055f776af8330 R08: 0000000000000003 R09: 0000000000000077
[   11.803952][  T228] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000004
[   11.804316][  T228] R13: 00007ff309f30760 R14: 0000000000000004 R15: 00007ff309f2b9c0
| [   18.021807][  T228] ------------[ cut here ]------------
| [ 18.022171][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   18.022609][  T228] Modules linked in: netdevsim [last unloaded: ip6_udp_tunnel]
| [   18.023399][  T228] Tainted: [W]=WARN
[   18.023583][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.023886][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.024194][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   18.024925][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[   18.025199][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   18.025515][  T228] RDX: 0000000000000000 RSI: ffff88800b89ac98 RDI: ffff888004e60b28
[   18.025822][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   18.026156][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   18.026473][  T228] R13: ffff88800b89a128 R14: ffff88800b89a008 R15: ffff88800b89a000
[   18.026799][  T228] FS:  00007ff309d33740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   18.027358][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.027663][  T228] CR2: 000055f776af8330 CR3: 0000000009422005 CR4: 0000000000772ef0
[   18.027972][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   18.028306][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   18.028654][  T228] PKRU: 55555554
[   18.028825][  T228] Call Trace:
[   18.028992][  T228]  <TASK>
[ 18.029101][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.029328][ T228] ? __warn (kernel/panic.c:748) 
[ 18.029508][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.029728][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 18.029955][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 18.030120][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 18.030337][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 18.030557][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.030782][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 18.031039][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 18.031276][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 18.031496][ T228] register_netdevice (net/core/dev.c:11003) 
[ 18.031722][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 18.031941][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 18.032193][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 18.032468][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 18.032782][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 18.033042][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 18.033252][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 18.033462][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 18.033723][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 18.033920][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 18.034124][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 18.034349][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 18.034581][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 18.034752][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 18.034965][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 18.035202][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 18.035425][ T228] ksys_write (fs/read_write.c:731) 
[ 18.035580][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 18.035816][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 18.036019][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.036287][  T228] RIP: 0033:0x7ff309e74b77
[ 18.036500][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   18.037337][  T228] RSP: 002b:00007ffccd1e5fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   18.037673][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[   18.037995][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[   18.038372][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   18.038693][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[   18.039020][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [   24.740261][  T228] ------------[ cut here ]------------
| [ 24.740677][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   24.741149][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   24.741930][  T228] Tainted: [W]=WARN
[   24.742088][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.742397][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.742668][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   24.743421][  T228] RSP: 0018:ffffc90000a67520 EFLAGS: 00010246
[   24.743682][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   24.744108][  T228] RDX: 0000000000000000 RSI: ffff8880024a2c98 RDI: ffff888004e60b78
[   24.744473][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   24.744783][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   24.745093][  T228] R13: ffff8880024a2128 R14: ffff8880024a2008 R15: ffff8880024a2000
[   24.745408][  T228] FS:  00007ff309d33740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   24.745768][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.746025][  T228] CR2: 00007ff309ee7733 CR3: 0000000009422004 CR4: 0000000000772ef0
[   24.746367][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.746675][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.746991][  T228] PKRU: 55555554
[   24.747167][  T228] Call Trace:
[   24.747324][  T228]  <TASK>
[ 24.747431][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.747640][ T228] ? __warn (kernel/panic.c:748) 
[ 24.747800][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.748010][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 24.748238][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 24.748433][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 24.748641][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 24.748868][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.749086][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 24.749363][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 24.749582][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 24.749796][ T228] register_netdevice (net/core/dev.c:11003) 
[ 24.750052][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 24.750300][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 24.750526][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 24.750792][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 24.750954][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 24.751238][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 24.751502][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 24.751772][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 24.751994][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 24.752271][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 24.752510][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 24.752669][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 24.752886][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 24.753100][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 24.753326][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 24.753536][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 24.753746][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 24.754003][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 24.754275][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 24.754486][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 24.754696][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 24.754909][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 24.755125][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 24.755345][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 24.755551][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 24.755759][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 24.755975][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 24.756196][ T228] device_add (drivers/base/core.c:3672) 
[ 24.756449][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 24.756659][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 24.756881][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 24.757182][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 24.757456][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.757663][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 24.757877][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.758088][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 24.758313][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 24.758479][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 24.758690][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 24.758894][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 24.759110][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 24.759349][ T228] ksys_write (fs/read_write.c:731) 
[ 24.759509][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 24.759721][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 24.759938][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 24.760156][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.760444][  T228] RIP: 0033:0x7ff309e74b77
[ 24.760661][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   24.761395][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   24.761707][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff309e74b77
[   24.762014][  T228] RDX: 0000000000000004 RSI: 000055f776af8330 RDI: 0000000000000001
[   24.762331][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   24.762645][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000004
[   24.762949][  T228] R13: 00007ff309f30760 R14: 0000000000000004 R15: 00007ff309f2b9c0
| [   24.831715][  T228] ------------[ cut here ]------------
| [ 24.832031][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   24.832442][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   24.833125][  T228] Tainted: [W]=WARN
[   24.833298][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.833553][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.833818][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   24.834573][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[   24.834832][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   24.835139][  T228] RDX: 0000000000000000 RSI: ffff888002472c98 RDI: ffff888004e60b28
[   24.835511][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   24.835848][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   24.836156][  T228] R13: ffff888002472128 R14: ffff888002472008 R15: ffff888002472000
[   24.836471][  T228] FS:  00007ff309d33740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   24.836819][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.837096][  T228] CR2: 00007fbfe45bc960 CR3: 0000000009422002 CR4: 0000000000772ef0
[   24.837425][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.837726][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.838149][  T228] PKRU: 55555554
[   24.838319][  T228] Call Trace:
[   24.838485][  T228]  <TASK>
[ 24.838593][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.838801][ T228] ? __warn (kernel/panic.c:748) 
[ 24.838960][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.839401][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 24.839625][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 24.839788][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 24.839987][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 24.840244][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.840460][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 24.840717][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 24.840926][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 24.841143][ T228] register_netdevice (net/core/dev.c:11003) 
[ 24.841365][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 24.841579][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 24.841807][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 24.842079][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 24.842385][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 24.842651][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.842863][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 24.843081][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 24.843426][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.843638][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 24.843844][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 24.844052][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 24.844391][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 24.844563][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 24.844779][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 24.844996][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 24.845246][ T228] ksys_write (fs/read_write.c:731) 
[ 24.845406][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 24.845631][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 24.845838][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.846089][  T228] RIP: 0033:0x7ff309e74b77
[ 24.846319][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   24.847051][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   24.847387][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[   24.847690][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[   24.847998][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   24.848325][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[   24.848625][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [   31.343468][  T228] ------------[ cut here ]------------
| [ 31.343802][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   31.344247][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   31.345038][  T228] Tainted: [W]=WARN
[   31.345213][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.345509][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.345784][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   31.346522][  T228] RSP: 0018:ffffc90000a67520 EFLAGS: 00010246
[   31.346785][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   31.347106][  T228] RDX: 0000000000000000 RSI: ffff88800bdb2c98 RDI: ffff888004e60b78
[   31.347426][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   31.347738][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   31.348040][  T228] R13: ffff88800bdb2128 R14: ffff88800bdb2008 R15: ffff88800bdb2000
[   31.348369][  T228] FS:  00007ff309d33740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   31.348731][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.348989][  T228] CR2: 00007ff309ee7733 CR3: 0000000009422003 CR4: 0000000000772ef0
[   31.349525][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.349835][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.350155][  T228] PKRU: 55555554
[   31.350317][  T228] Call Trace:
[   31.350475][  T228]  <TASK>
[ 31.350628][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.350841][ T228] ? __warn (kernel/panic.c:748) 
[ 31.351035][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.351260][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 31.351478][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 31.351640][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 31.351850][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 31.352075][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.352321][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 31.352591][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 31.352809][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 31.353027][ T228] register_netdevice (net/core/dev.c:11003) 
[ 31.353261][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 31.353515][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 31.353743][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 31.354015][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 31.354190][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 31.354469][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 31.354734][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 31.355002][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 31.355239][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 31.355504][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 31.355722][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 31.355880][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 31.356096][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 31.356334][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 31.356550][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 31.356761][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 31.356984][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 31.357257][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 31.357498][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 31.357707][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 31.357920][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 31.358144][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 31.358368][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 31.358580][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 31.358793][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 31.359003][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 31.359233][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 31.359447][ T228] device_add (drivers/base/core.c:3672) 
[ 31.359660][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 31.359866][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 31.360087][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 31.360391][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 31.360664][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.360873][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 31.361091][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.361325][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 31.361565][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 31.361731][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 31.361959][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 31.362177][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 31.362399][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 31.362617][ T228] ksys_write (fs/read_write.c:731) 
[ 31.362779][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 31.362985][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 31.363215][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.363492][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.363751][  T228] RIP: 0033:0x7ff309e74b77
[ 31.363968][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   31.364715][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   31.365038][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff309e74b77
[   31.365385][  T228] RDX: 0000000000000004 RSI: 000055f776af8330 RDI: 0000000000000001
[   31.365699][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   31.366006][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000004
[   31.366328][  T228] R13: 00007ff309f30760 R14: 0000000000000004 R15: 00007ff309f2b9c0
| [   31.406577][  T228] ------------[ cut here ]------------
| [ 31.406962][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   31.407365][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   31.408109][  T228] Tainted: [W]=WARN
[   31.408272][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.408505][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.408747][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   31.409457][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[   31.409703][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   31.409983][  T228] RDX: 0000000000000000 RSI: ffff88800e5d2c98 RDI: ffff888004e60b28
[   31.410271][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   31.410564][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   31.410978][  T228] R13: ffff88800e5d2128 R14: ffff88800e5d2008 R15: ffff88800e5d2000
[   31.411275][  T228] FS:  00007ff309d33740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   31.411613][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.411847][  T228] CR2: 00007ffccd1e6ff8 CR3: 0000000009422003 CR4: 0000000000772ef0
[   31.412145][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.412435][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.412715][  T228] PKRU: 55555554
[   31.412860][  T228] Call Trace:
[   31.413002][  T228]  <TASK>
[ 31.413099][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.413414][ T228] ? __warn (kernel/panic.c:748) 
[ 31.413573][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.413768][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 31.414109][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 31.414271][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 31.414567][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 31.414763][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.414961][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 31.415209][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 31.415512][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 31.415700][ T228] register_netdevice (net/core/dev.c:11003) 
[ 31.415892][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 31.416090][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 31.416312][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 31.416559][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 31.416817][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 31.417225][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.417538][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 31.417744][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 31.417985][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.418303][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 31.418494][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 31.418684][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 31.418873][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 31.419143][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 31.419335][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 31.419531][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 31.419728][ T228] ksys_write (fs/read_write.c:731) 
[ 31.419984][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 31.420194][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.420385][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.420613][  T228] RIP: 0033:0x7ff309e74b77
[ 31.420818][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   31.421614][  T228] RSP: 002b:00007ffccd1e7278 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   31.421902][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[   31.422240][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[   31.422514][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   31.422793][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[   31.423063][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [   45.307944][  T228] ------------[ cut here ]------------
| [ 45.308191][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   45.308575][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   45.309476][  T228] Tainted: [W]=WARN
[   45.309626][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.309881][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.310146][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   45.310849][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[   45.311111][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   45.311420][  T228] RDX: 0000000000000000 RSI: ffff88800d8b2c98 RDI: ffff888004e60b28
[   45.311732][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   45.312016][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   45.312432][  T228] R13: ffff88800d8b2128 R14: ffff88800d8b2008 R15: ffff88800d8b2000
[   45.312779][  T228] FS:  00007ff309d33740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   45.313155][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.313429][  T228] CR2: 00007ff309db8440 CR3: 0000000009422004 CR4: 0000000000772ef0
[   45.313741][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.314090][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.314386][  T228] PKRU: 55555554
[   45.314561][  T228] Call Trace:
[   45.314709][  T228]  <TASK>
[ 45.314807][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.315006][ T228] ? __warn (kernel/panic.c:748) 
[ 45.315184][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.315377][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 45.315583][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 45.315733][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 45.315931][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 45.316212][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.316431][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 45.316676][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 45.316900][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 45.317108][ T228] register_netdevice (net/core/dev.c:11003) 
[ 45.317332][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 45.317533][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 45.317746][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 45.318006][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 45.318326][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 45.318573][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 45.318771][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 45.318983][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 45.319236][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 45.319424][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 45.319616][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 45.319814][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 45.320012][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 45.320179][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 45.320371][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 45.320602][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 45.320804][ T228] ksys_write (fs/read_write.c:731) 
[ 45.321003][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 45.321225][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.321442][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.321670][  T228] RIP: 0033:0x7ff309e74b77
[ 45.321878][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   45.322688][  T228] RSP: 002b:00007ffccd1e7278 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   45.322970][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[   45.323259][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[   45.323543][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   45.323817][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[   45.324101][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [   59.000603][  T228] ------------[ cut here ]------------
| [ 59.001066][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   59.001600][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   59.002935][  T228] Tainted: [W]=WARN
[   59.003272][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 59.003603][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 59.003939][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   59.004868][  T228] RSP: 0018:ffffc90000a67520 EFLAGS: 00010246
[   59.005282][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   59.005718][  T228] RDX: 0000000000000000 RSI: ffff88800e33ac98 RDI: ffff888004e60b78
[   59.006114][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   59.006932][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   59.007360][  T228] R13: ffff88800e33a128 R14: ffff88800e33a008 R15: ffff88800e33a000
[   59.007790][  T228] FS:  00007ff309d33740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   59.008253][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   59.008635][  T228] CR2: 00007ff309db8440 CR3: 0000000009422002 CR4: 0000000000772ef0
[   59.009023][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   59.009495][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   59.009885][  T228] PKRU: 55555554
[   59.010085][  T228] Call Trace:
[   59.010298][  T228]  <TASK>
[ 59.010498][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 59.010774][ T228] ? __warn (kernel/panic.c:748) 
[ 59.010990][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 59.011269][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 59.011535][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 59.011732][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 59.011980][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 59.012260][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 59.012520][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 59.012848][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 59.013104][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 59.013395][ T228] register_netdevice (net/core/dev.c:11003) 
[ 59.013653][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 59.013921][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 59.014211][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 59.014530][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 59.014731][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 59.015113][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 59.015462][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 59.015782][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 59.016184][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 59.016682][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 59.016999][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 59.017245][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 59.017522][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 59.017783][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 59.018057][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 59.018333][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 59.018636][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 59.019030][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 59.019312][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 59.019596][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 59.019930][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 59.020340][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 59.020714][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 59.021100][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 59.021538][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 59.021941][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 59.022385][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 59.022784][ T228] device_add (drivers/base/core.c:3672) 
[ 59.023194][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 59.023576][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 59.023974][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 59.024500][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 59.024997][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 59.025478][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 59.025881][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 59.026314][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 59.026725][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 59.027039][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 59.027478][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 59.027888][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 59.028335][ T228] ksys_write (fs/read_write.c:731) 
[ 59.028619][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 59.028928][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 59.029233][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   59.029531][  T228] RIP: 0033:0x7ff309e74b77
[ 59.029782][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   59.030726][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   59.031086][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff309e74b77
[   59.031467][  T228] RDX: 0000000000000004 RSI: 000055f776af8330 RDI: 0000000000000001
[   59.031825][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   59.032207][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000004
[   59.032570][  T228] R13: 00007ff309f30760 R14: 0000000000000004 R15: 00007ff309f2b9c0
| [   59.087551][  T228] ------------[ cut here ]------------
| [ 59.088075][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   59.088728][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   59.090047][  T228] Tainted: [W]=WARN
[   59.090310][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 59.090701][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 59.091114][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   59.091887][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[   59.092182][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   59.092650][  T228] RDX: 0000000000000000 RSI: ffff88800bdb2c98 RDI: ffff888004e60b28
[   59.093072][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   59.093409][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   59.093696][  T228] R13: ffff88800bdb2128 R14: ffff88800bdb2008 R15: ffff88800bdb2000
[   59.093997][  T228] FS:  00007ff309d33740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   59.094413][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   59.094655][  T228] CR2: 00007ffccd1e6ff8 CR3: 0000000009422002 CR4: 0000000000772ef0
[   59.095332][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   59.095621][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   59.095919][  T228] PKRU: 55555554
[   59.096080][  T228] Call Trace:
[   59.096341][  T228]  <TASK>
[ 59.096509][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 59.096852][ T228] ? __warn (kernel/panic.c:748) 
[ 59.097099][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 59.097489][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 59.097831][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 59.098081][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 59.098429][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 59.098719][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 59.098945][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 59.099280][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 59.099522][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 59.099738][ T228] register_netdevice (net/core/dev.c:11003) 
[ 59.099950][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 59.100279][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 59.100622][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 59.100921][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 59.101237][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 59.101505][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 59.101714][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 59.102115][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 59.102394][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 59.102604][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 59.102822][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 59.103168][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 59.103380][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 59.103546][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 59.103758][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 59.104101][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 59.104333][ T228] ksys_write (fs/read_write.c:731) 
[ 59.104501][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 59.104731][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 59.105248][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   59.105555][  T228] RIP: 0033:0x7ff309e74b77
[ 59.105773][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   59.106668][  T228] RSP: 002b:00007ffccd1e7278 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   59.106994][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[   59.107325][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[   59.107641][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   59.108070][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[   59.108414][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [   73.601372][  T228] ------------[ cut here ]------------
| [ 73.601691][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   73.602176][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   73.603190][  T228] Tainted: [W]=WARN
[   73.603464][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 73.603788][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 73.604147][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   73.604999][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[   73.605280][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   73.605613][  T228] RDX: 0000000000000000 RSI: ffff88800e5d2c98 RDI: ffff888004e60b28
[   73.605950][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   73.606338][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   73.606728][  T228] R13: ffff88800e5d2128 R14: ffff88800e5d2008 R15: ffff88800e5d2000
[   73.607068][  T228] FS:  00007ff309d33740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   73.607464][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   73.607748][  T228] CR2: 00007ff309db8440 CR3: 0000000009422003 CR4: 0000000000772ef0
[   73.608106][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   73.608485][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   73.608854][  T228] PKRU: 55555554
[   73.609027][  T228] Call Trace:
[   73.609215][  T228]  <TASK>
[ 73.609333][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 73.609549][ T228] ? __warn (kernel/panic.c:748) 
[ 73.609725][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 73.609940][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 73.610181][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 73.610363][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 73.610582][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 73.610812][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 73.611042][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 73.611345][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 73.611585][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 73.611817][ T228] register_netdevice (net/core/dev.c:11003) 
[ 73.612062][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 73.612318][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 73.612574][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 73.612861][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 73.613179][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 73.613472][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 73.613705][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 73.613938][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 73.614315][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 73.614596][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 73.614876][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 73.615162][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 73.615447][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 73.615658][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 73.615921][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 73.616199][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 73.616474][ T228] ksys_write (fs/read_write.c:731) 
[ 73.616692][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 73.616976][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 73.617310][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   73.617624][  T228] RIP: 0033:0x7ff309e74b77
[ 73.617891][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   73.618755][  T228] RSP: 002b:00007ffccd1e7278 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   73.619162][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[   73.619496][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[   73.619867][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   73.620223][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[   73.620575][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [   88.209476][  T228] ------------[ cut here ]------------
| [ 88.210085][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   88.210607][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   88.211574][  T228] Tainted: [W]=WARN
[   88.211762][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 88.212065][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 88.212373][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   88.213236][  T228] RSP: 0018:ffffc90000a67520 EFLAGS: 00010246
[   88.213560][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   88.214019][  T228] RDX: 0000000000000000 RSI: ffff88800d8b2c98 RDI: ffff888004e60b78
[   88.214404][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   88.214762][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   88.215114][  T228] R13: ffff88800d8b2128 R14: ffff88800d8b2008 R15: ffff88800d8b2000
[   88.215480][  T228] FS:  00007ff309d33740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   88.215926][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.216233][  T228] CR2: 00007fbfe45bc7d0 CR3: 0000000009422006 CR4: 0000000000772ef0
[   88.216615][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   88.216961][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   88.217325][  T228] PKRU: 55555554
[   88.217508][  T228] Call Trace:
[   88.217700][  T228]  <TASK>
[ 88.217832][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 88.218070][ T228] ? __warn (kernel/panic.c:748) 
[ 88.218281][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 88.218554][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 88.218830][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 88.219035][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 88.219316][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 88.219590][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 88.219869][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 88.220259][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 88.220528][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 88.220822][ T228] register_netdevice (net/core/dev.c:11003) 
[ 88.221099][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 88.221420][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 88.221699][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 88.222019][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 88.222229][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 88.222607][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 88.222950][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 88.223337][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 88.223671][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 88.224042][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 88.224452][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 88.224687][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 88.224982][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 88.225333][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 88.225627][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 88.225906][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 88.226187][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 88.226530][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 88.226790][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 88.227059][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 88.227310][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 88.227547][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 88.227795][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 88.228062][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 88.228340][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 88.228634][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 88.228914][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 88.229193][ T228] device_add (drivers/base/core.c:3672) 
[ 88.229459][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 88.229726][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 88.230007][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 88.230364][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 88.230706][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 88.230984][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 88.231304][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 88.231584][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 88.231861][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 88.232078][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 88.232370][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 88.232631][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 88.232944][ T228] ksys_write (fs/read_write.c:731) 
[ 88.233175][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 88.233476][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 88.233764][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   88.234186][  T228] RIP: 0033:0x7ff309e74b77
[ 88.234503][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   88.235509][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   88.235910][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff309e74b77
[   88.236301][  T228] RDX: 0000000000000004 RSI: 000055f776af8330 RDI: 0000000000000001
[   88.236720][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   88.237107][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000004
[   88.237515][  T228] R13: 00007ff309f30760 R14: 0000000000000004 R15: 00007ff309f2b9c0
| [   88.289571][  T228] ------------[ cut here ]------------
| [ 88.289998][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   88.290588][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   88.291765][  T228] Tainted: [W]=WARN
[   88.291995][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 88.292338][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 88.292648][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   88.293524][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[   88.293858][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   88.294248][  T228] RDX: 0000000000000000 RSI: ffff88800e33ac98 RDI: ffff888004e60b28
[   88.294605][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   88.294967][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   88.295341][  T228] R13: ffff88800e33a128 R14: ffff88800e33a008 R15: ffff88800e33a000
[   88.295698][  T228] FS:  00007ff309d33740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   88.296144][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.296482][  T228] CR2: 00007fbfe45bc7d0 CR3: 0000000009422006 CR4: 0000000000772ef0
[   88.296872][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   88.297250][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   88.297876][  T228] PKRU: 55555554
[   88.298075][  T228] Call Trace:
[   88.298312][  T228]  <TASK>
[ 88.298464][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 88.298731][ T228] ? __warn (kernel/panic.c:748) 
[ 88.298987][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 88.299281][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 88.299589][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 88.299810][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 88.300097][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 88.300434][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 88.300696][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 88.301008][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 88.301283][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 88.301524][ T228] register_netdevice (net/core/dev.c:11003) 
[ 88.301751][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 88.301987][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 88.302249][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 88.302531][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 88.302850][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 88.303169][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 88.303436][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 88.303748][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 88.304088][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 88.304362][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 88.304625][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 88.304870][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 88.305291][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 88.305490][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 88.305852][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 88.306111][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 88.306382][ T228] ksys_write (fs/read_write.c:731) 
[ 88.306606][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 88.306876][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 88.307272][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   88.307563][  T228] RIP: 0033:0x7ff309e74b77
[ 88.307962][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   88.308900][  T228] RSP: 002b:00007ffccd1e8b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   88.309302][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[   88.309706][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[   88.310116][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   88.310536][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[   88.310943][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [   96.363228][  T228] ------------[ cut here ]------------
| [ 96.363517][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   96.363919][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   96.364733][  T228] Tainted: [W]=WARN
[   96.364898][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 96.365158][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 96.365413][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   96.366080][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[   96.366348][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   96.366665][  T228] RDX: 0000000000000000 RSI: ffff88800bdb2c98 RDI: ffff888004e60b28
[   96.366962][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[   96.367272][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[   96.367569][  T228] R13: ffff88800bdb2128 R14: ffff88800bdb2008 R15: ffff88800bdb2000
[   96.367862][  T228] FS:  00007ff309d33740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   96.368209][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   96.368464][  T228] CR2: 00007ff309db8440 CR3: 0000000009422003 CR4: 0000000000772ef0
[   96.368762][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   96.369058][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   96.369365][  T228] PKRU: 55555554
[   96.369522][  T228] Call Trace:
[   96.369679][  T228]  <TASK>
[ 96.369790][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 96.370004][ T228] ? __warn (kernel/panic.c:748) 
[ 96.370175][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 96.370386][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 96.370600][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 96.370761][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 96.370964][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 96.371187][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 96.371401][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 96.371653][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 96.371872][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 96.372083][ T228] register_netdevice (net/core/dev.c:11003) 
[ 96.372306][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 96.372518][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 96.372745][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 96.373014][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 96.373298][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 96.373555][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 96.373761][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 96.373971][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 96.374244][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 96.374451][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 96.374658][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 96.374863][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 96.375072][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 96.375249][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 96.375455][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 96.375669][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 96.375912][ T228] ksys_write (fs/read_write.c:731) 
[ 96.376104][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 96.376329][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 96.376550][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   96.376798][  T228] RIP: 0033:0x7ff309e74b77
[ 96.377015][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   96.377700][  T228] RSP: 002b:00007ffccd1e8b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   96.377999][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[   96.378303][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[   96.378594][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[   96.378888][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[   96.379187][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  104.379966][  T228] ------------[ cut here ]------------
| [ 104.380413][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  104.380850][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  104.381758][  T228] Tainted: [W]=WARN
[  104.381917][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 104.382194][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.382462][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  104.383206][  T228] RSP: 0018:ffffc90000a67520 EFLAGS: 00010246
[  104.383478][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  104.383791][  T228] RDX: 0000000000000000 RSI: ffff8880026fac98 RDI: ffff888004e60b78
[  104.384109][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  104.384452][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  104.384778][  T228] R13: ffff8880026fa128 R14: ffff8880026fa008 R15: ffff8880026fa000
[  104.385089][  T228] FS:  00007ff309d33740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  104.385461][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  104.385732][  T228] CR2: 00007f65272c0000 CR3: 0000000009422003 CR4: 0000000000772ef0
[  104.386308][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  104.386651][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  104.386970][  T228] PKRU: 55555554
[  104.387142][  T228] Call Trace:
[  104.387301][  T228]  <TASK>
[ 104.387410][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.387647][ T228] ? __warn (kernel/panic.c:748) 
[ 104.387822][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.388037][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 104.388269][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 104.388438][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 104.388662][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 104.388887][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.389106][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 104.389389][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 104.389629][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 104.389846][ T228] register_netdevice (net/core/dev.c:11003) 
[ 104.390062][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 104.390300][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 104.390542][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 104.390816][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 104.391027][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 104.391323][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 104.391590][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 104.391864][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 104.392087][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 104.392363][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 104.392590][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 104.392751][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 104.392979][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 104.393209][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 104.393420][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 104.393634][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 104.393851][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 104.394119][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 104.394344][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 104.394547][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 104.394758][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 104.394963][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 104.395241][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 104.395459][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 104.395681][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 104.395898][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 104.396119][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 104.396351][ T228] device_add (drivers/base/core.c:3672) 
[ 104.396575][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 104.396794][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 104.397013][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 104.397305][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 104.397579][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.397790][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 104.398010][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.398226][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 104.398440][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 104.398607][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 104.398824][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 104.399048][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 104.399275][ T228] ksys_write (fs/read_write.c:731) 
[ 104.399435][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 104.399657][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 104.399878][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  104.400143][  T228] RIP: 0033:0x7ff309e74b77
[ 104.400369][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  104.401098][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  104.401424][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff309e74b77
[  104.401728][  T228] RDX: 0000000000000004 RSI: 000055f776af8330 RDI: 0000000000000001
[  104.402036][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  104.402357][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000004
[  104.402661][  T228] R13: 00007ff309f30760 R14: 0000000000000004 R15: 00007ff309f2b9c0
| [  104.453585][  T228] ------------[ cut here ]------------
| [ 104.453931][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  104.454387][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  104.455244][  T228] Tainted: [W]=WARN
[  104.455418][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 104.455668][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.455938][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  104.456925][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  104.457204][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  104.457528][  T228] RDX: 0000000000000000 RSI: ffff88800e5d2c98 RDI: ffff888004e60b28
[  104.457830][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  104.458211][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  104.458567][  T228] R13: ffff88800e5d2128 R14: ffff88800e5d2008 R15: ffff88800e5d2000
[  104.458879][  T228] FS:  00007ff309d33740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  104.459324][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  104.459583][  T228] CR2: 00007ffccd1e6ff8 CR3: 0000000009422005 CR4: 0000000000772ef0
[  104.459944][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  104.460348][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  104.460697][  T228] PKRU: 55555554
[  104.460853][  T228] Call Trace:
[  104.461011][  T228]  <TASK>
[ 104.461120][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.461444][ T228] ? __warn (kernel/panic.c:748) 
[ 104.461641][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.461852][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 104.462115][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 104.462356][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 104.462563][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 104.462783][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.462999][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 104.463367][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 104.463587][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 104.463854][ T228] register_netdevice (net/core/dev.c:11003) 
[ 104.464078][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 104.464370][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 104.464621][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 104.464942][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 104.465484][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 104.465759][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.466032][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 104.466263][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 104.466614][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.466823][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 104.467033][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 104.467335][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 104.467562][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 104.467730][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 104.467941][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 104.468232][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 104.468464][ T228] ksys_write (fs/read_write.c:731) 
[ 104.468623][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 104.468896][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 104.469231][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  104.469568][  T228] RIP: 0033:0x7ff309e74b77
[ 104.469777][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  104.470616][  T228] RSP: 002b:00007ffccd1e6ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  104.470919][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  104.471555][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  104.471966][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  104.472408][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[  104.472712][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  107.488588][  T228] ------------[ cut here ]------------
| [ 107.488906][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  107.490338][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  107.491340][  T228] Tainted: [W]=WARN
[  107.491519][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 107.491818][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.492127][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  107.492952][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  107.493275][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  107.493621][  T228] RDX: 0000000000000000 RSI: ffff88800e33ac98 RDI: ffff888004e60b28
[  107.493979][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  107.494336][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  107.494695][  T228] R13: ffff88800e33a128 R14: ffff88800e33a008 R15: ffff88800e33a000
[  107.495048][  T228] FS:  00007ff309d33740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  107.495472][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  107.495773][  T228] CR2: 000055f776ad71e8 CR3: 0000000009422003 CR4: 0000000000772ef0
[  107.496144][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  107.496510][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  107.496862][  T228] PKRU: 55555554
[  107.497044][  T228] Call Trace:
[  107.497239][  T228]  <TASK>
[ 107.497365][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.497613][ T228] ? __warn (kernel/panic.c:748) 
[ 107.497793][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.498035][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 107.498293][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 107.498483][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 107.498718][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 107.498970][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.499235][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 107.499535][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 107.499779][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 107.500020][ T228] register_netdevice (net/core/dev.c:11003) 
[ 107.500278][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 107.500528][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 107.500785][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 107.501088][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 107.501422][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 107.501729][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 107.501979][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 107.502331][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 107.502638][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 107.502872][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 107.503108][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 107.503361][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 107.503601][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 107.503801][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 107.504055][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 107.504316][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 107.504564][ T228] ksys_write (fs/read_write.c:731) 
[ 107.504753][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 107.505002][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 107.505263][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  107.505562][  T228] RIP: 0033:0x7ff309e74b77
[ 107.505819][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  107.506675][  T228] RSP: 002b:00007ffccd1e6ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  107.507043][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  107.507409][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  107.507749][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  107.508100][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[  107.508464][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  110.343894][  T228] ------------[ cut here ]------------
| [ 110.344364][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  110.344859][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  110.345881][  T228] Tainted: [W]=WARN
[  110.346068][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 110.346455][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 110.346761][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  110.347622][  T228] RSP: 0018:ffffc90000a67520 EFLAGS: 00010246
[  110.347937][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  110.348298][  T228] RDX: 0000000000000000 RSI: ffff88800bdb2c98 RDI: ffff888004e60b78
[  110.348642][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  110.348988][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  110.349345][  T228] R13: ffff88800bdb2128 R14: ffff88800bdb2008 R15: ffff88800bdb2000
[  110.349721][  T228] FS:  00007ff309d33740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  110.350324][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  110.350655][  T228] CR2: 000055f776acf000 CR3: 0000000009422005 CR4: 0000000000772ef0
[  110.351023][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  110.351443][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  110.351815][  T228] PKRU: 55555554
[  110.352008][  T228] Call Trace:
[  110.352217][  T228]  <TASK>
[ 110.352356][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 110.352612][ T228] ? __warn (kernel/panic.c:748) 
[ 110.352809][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 110.353112][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 110.353404][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 110.353601][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 110.353857][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 110.354124][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 110.354419][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 110.354723][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 110.354969][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 110.355230][ T228] register_netdevice (net/core/dev.c:11003) 
[ 110.355484][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 110.355731][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 110.355993][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 110.356312][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 110.356592][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 110.356941][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 110.357266][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 110.357574][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 110.357863][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 110.358178][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 110.358429][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 110.358626][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 110.358891][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 110.359156][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 110.359424][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 110.359660][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 110.359898][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 110.360219][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 110.360459][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 110.360694][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 110.360932][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 110.361196][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 110.361465][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 110.361704][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 110.361939][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 110.362196][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 110.362465][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 110.362710][ T228] device_add (drivers/base/core.c:3672) 
[ 110.362972][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 110.363228][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 110.363476][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 110.363781][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 110.364092][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 110.364346][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 110.364586][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 110.364822][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 110.365087][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 110.365299][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 110.365543][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 110.365797][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 110.366063][ T228] ksys_write (fs/read_write.c:731) 
[ 110.366266][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 110.366541][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 110.366835][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  110.367156][  T228] RIP: 0033:0x7ff309e74b77
[ 110.367403][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  110.368269][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  110.368674][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff309e74b77
[  110.369041][  T228] RDX: 0000000000000004 RSI: 000055f776af8330 RDI: 0000000000000001
[  110.369438][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  110.369827][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000004
[  110.370211][  T228] R13: 00007ff309f30760 R14: 0000000000000004 R15: 00007ff309f2b9c0
| [  110.443804][  T228] ------------[ cut here ]------------
| [ 110.444349][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  110.445064][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  110.446597][  T228] Tainted: [W]=WARN
[  110.446869][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 110.447402][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 110.447809][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  110.449043][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  110.449584][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  110.450052][  T228] RDX: 0000000000000000 RSI: ffff8880026fac98 RDI: ffff888004e60b28
[  110.450654][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  110.451270][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  110.451738][  T228] R13: ffff8880026fa128 R14: ffff8880026fa008 R15: ffff8880026fa000
[  110.452331][  T228] FS:  00007ff309d33740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  110.452908][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  110.453341][  T228] CR2: 000055d37ba20630 CR3: 0000000009422002 CR4: 0000000000772ef0
[  110.453811][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  110.454269][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  110.454671][  T228] PKRU: 55555554
[  110.454882][  T228] Call Trace:
[  110.455116][  T228]  <TASK>
[ 110.455315][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 110.455633][ T228] ? __warn (kernel/panic.c:748) 
[ 110.455870][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 110.456196][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 110.456529][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 110.456780][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 110.457100][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 110.457463][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 110.457804][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 110.458231][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 110.458559][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 110.458879][ T228] register_netdevice (net/core/dev.c:11003) 
[ 110.459222][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 110.459561][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 110.460240][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 110.460671][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 110.461106][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 110.461538][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 110.461851][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 110.462190][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 110.462607][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 110.462920][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 110.463256][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 110.463582][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 110.463913][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 110.464193][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 110.464518][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 110.464852][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 110.465215][ T228] ksys_write (fs/read_write.c:731) 
[ 110.465462][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 110.465800][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 110.466123][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  110.466555][  T228] RIP: 0033:0x7ff309e74b77
[ 110.466879][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  110.467994][  T228] RSP: 002b:00007ffccd1e73a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  110.468490][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  110.468959][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  110.469454][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  110.469896][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[  110.470360][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  113.316235][  T228] ------------[ cut here ]------------
| [ 113.316571][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  113.317024][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  113.318120][  T228] Tainted: [W]=WARN
[  113.318382][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 113.318677][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 113.318972][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  113.319788][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  113.320084][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  113.320447][  T228] RDX: 0000000000000000 RSI: ffff88800e5d2c98 RDI: ffff888004e60b28
[  113.320775][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  113.321101][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  113.321433][  T228] R13: ffff88800e5d2128 R14: ffff88800e5d2008 R15: ffff88800e5d2000
[  113.321773][  T228] FS:  00007ff309d33740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  113.322151][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  113.322461][  T228] CR2: 00007ff309db8440 CR3: 0000000009422005 CR4: 0000000000772ef0
[  113.322801][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  113.323121][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  113.323474][  T228] PKRU: 55555554
[  113.323645][  T228] Call Trace:
[  113.323820][  T228]  <TASK>
[ 113.323939][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 113.324184][ T228] ? __warn (kernel/panic.c:748) 
[ 113.324362][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 113.324593][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 113.324837][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 113.325015][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 113.325254][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 113.325493][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 113.325726][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 113.326005][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 113.326258][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 113.326628][ T228] register_netdevice (net/core/dev.c:11003) 
[ 113.327001][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 113.327376][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 113.327737][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 113.328201][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 113.328689][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 113.329159][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 113.329523][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 113.329906][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 113.330378][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 113.330731][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 113.331087][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 113.331462][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 113.331813][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 113.332097][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 113.332471][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 113.332806][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 113.333166][ T228] ksys_write (fs/read_write.c:731) 
[ 113.333358][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 113.333630][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 113.333845][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  113.334105][  T228] RIP: 0033:0x7ff309e74b77
[ 113.334369][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  113.335216][  T228] RSP: 002b:00007ffccd1e73a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  113.335576][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  113.335895][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  113.336216][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  113.336585][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[  113.336906][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  116.019743][  T228] ------------[ cut here ]------------
| [ 116.020279][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  116.021008][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  116.022106][  T228] Tainted: [W]=WARN
[  116.022312][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 116.022619][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.022998][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  116.023971][  T228] RSP: 0018:ffffc90000a67520 EFLAGS: 00010246
[  116.024324][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  116.024736][  T228] RDX: 0000000000000000 RSI: ffff88800e33ac98 RDI: ffff888004e60b78
[  116.025181][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  116.025550][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  116.025920][  T228] R13: ffff88800e33a128 R14: ffff88800e33a008 R15: ffff88800e33a000
[  116.026365][  T228] FS:  00007ff309d33740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  116.026828][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  116.027179][  T228] CR2: 00007f14b3f671b4 CR3: 0000000009422003 CR4: 0000000000772ef0
[  116.027621][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  116.028052][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  116.028512][  T228] PKRU: 55555554
[  116.028777][  T228] Call Trace:
[  116.029027][  T228]  <TASK>
[ 116.029215][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.029509][ T228] ? __warn (kernel/panic.c:748) 
[ 116.029748][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.030030][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 116.030327][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 116.030551][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 116.030833][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 116.031126][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.031389][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 116.031710][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 116.031963][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 116.032235][ T228] register_netdevice (net/core/dev.c:11003) 
[ 116.032502][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 116.032826][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 116.033166][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 116.033519][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 116.033738][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 116.034100][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 116.034465][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 116.034831][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 116.035156][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 116.035566][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 116.035951][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 116.036262][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 116.036677][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 116.037067][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 116.037468][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 116.037864][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 116.038273][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 116.038730][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 116.039104][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 116.039494][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 116.039875][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 116.040271][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 116.040668][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 116.041039][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 116.041430][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 116.041814][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 116.042224][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 116.042604][ T228] device_add (drivers/base/core.c:3672) 
[ 116.042973][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 116.043367][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 116.043775][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 116.044280][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 116.044754][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 116.045122][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 116.045524][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 116.045894][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 116.046335][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 116.046654][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 116.047045][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 116.047437][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 116.047828][ T228] ksys_write (fs/read_write.c:731) 
[ 116.048117][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 116.048524][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 116.048908][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  116.049408][  T228] RIP: 0033:0x7ff309e74b77
[ 116.049767][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  116.050993][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  116.051568][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff309e74b77
[  116.052101][  T228] RDX: 0000000000000004 RSI: 000055f776af8330 RDI: 0000000000000001
[  116.052647][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  116.053176][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000004
[  116.053703][  T228] R13: 00007ff309f30760 R14: 0000000000000004 R15: 00007ff309f2b9c0
| [  116.110095][  T228] ------------[ cut here ]------------
| [ 116.110657][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  116.111379][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  116.112615][  T228] Tainted: [W]=WARN
[  116.112836][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 116.113213][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.113567][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  116.114614][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  116.114999][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  116.115454][  T228] RDX: 0000000000000000 RSI: ffff88800bdb2c98 RDI: ffff888004e60b28
[  116.115882][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  116.116339][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  116.116798][  T228] R13: ffff88800bdb2128 R14: ffff88800bdb2008 R15: ffff88800bdb2000
[  116.117242][  T228] FS:  00007ff309d33740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  116.117757][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  116.118112][  T228] CR2: 00007ffccd1e6ff8 CR3: 0000000009422005 CR4: 0000000000772ef0
[  116.118556][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  116.119008][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  116.119802][  T228] PKRU: 55555554
[  116.120034][  T228] Call Trace:
[  116.120283][  T228]  <TASK>
[ 116.120439][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.120736][ T228] ? __warn (kernel/panic.c:748) 
[ 116.120972][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.121303][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 116.121616][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 116.121845][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 116.122175][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 116.122506][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.122806][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 116.123197][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 116.123511][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 116.123809][ T228] register_netdevice (net/core/dev.c:11003) 
[ 116.124113][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 116.124465][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 116.124796][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 116.125213][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 116.125644][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 116.126030][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 116.126340][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 116.126658][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 116.127026][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 116.127353][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 116.127664][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 116.127957][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 116.128268][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 116.128514][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 116.128818][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 116.129160][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 116.129473][ T228] ksys_write (fs/read_write.c:731) 
[ 116.129696][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 116.130018][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 116.130338][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  116.130706][  T228] RIP: 0033:0x7ff309e74b77
[ 116.131007][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  116.132059][  T228] RSP: 002b:00007ffccd1e6ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  116.132622][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  116.133055][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  116.133518][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  116.133960][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[  116.134425][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  118.823337][  T228] ------------[ cut here ]------------
| [ 118.823589][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  118.823989][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  118.825072][  T228] Tainted: [W]=WARN
[  118.825232][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 118.825483][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.825730][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  118.826445][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  118.826703][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  118.827000][  T228] RDX: 0000000000000000 RSI: ffff8880026fac98 RDI: ffff888004e60b28
[  118.827308][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  118.827593][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  118.827877][  T228] R13: ffff8880026fa128 R14: ffff8880026fa008 R15: ffff8880026fa000
[  118.828184][  T228] FS:  00007ff309d33740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  118.828527][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  118.828782][  T228] CR2: 000055f776ad71e8 CR3: 0000000009422001 CR4: 0000000000772ef0
[  118.829092][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  118.829428][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  118.829728][  T228] PKRU: 55555554
[  118.829873][  T228] Call Trace:
[  118.830021][  T228]  <TASK>
[ 118.830122][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.830332][ T228] ? __warn (kernel/panic.c:748) 
[ 118.830488][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.830693][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 118.830901][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 118.831063][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 118.831285][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 118.831497][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.831722][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 118.831970][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 118.832187][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 118.832385][ T228] register_netdevice (net/core/dev.c:11003) 
[ 118.832596][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 118.832810][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 118.833036][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 118.833314][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 118.833584][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 118.833861][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.834061][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 118.834283][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 118.834529][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.834717][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 118.834913][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 118.835106][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 118.835314][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 118.835477][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 118.835683][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 118.835889][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 118.836086][ T228] ksys_write (fs/read_write.c:731) 
[ 118.836248][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 118.836467][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 118.836672][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  118.836923][  T228] RIP: 0033:0x7ff309e74b77
[ 118.837121][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  118.837881][  T228] RSP: 002b:00007ffccd1e6ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  118.838190][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  118.838477][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  118.838756][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  118.839032][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[  118.839348][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  121.119544][  T228] ------------[ cut here ]------------
| [ 121.119934][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  121.120532][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  121.121413][  T228] Tainted: [W]=WARN
[  121.121577][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 121.121847][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.122116][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  121.122856][  T228] RSP: 0000:ffffc90000a67520 EFLAGS: 00010246
[  121.123122][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  121.123452][  T228] RDX: 0000000000000000 RSI: ffff88800e5d2c98 RDI: ffff888004e60b78
[  121.123768][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  121.124109][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  121.124457][  T228] R13: ffff88800e5d2128 R14: ffff88800e5d2008 R15: ffff88800e5d2000
[  121.124793][  T228] FS:  00007ff309d33740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  121.125188][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  121.125477][  T228] CR2: 000055f776ad5630 CR3: 0000000009422001 CR4: 0000000000772ef0
[  121.125787][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  121.126094][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  121.126473][  T228] PKRU: 55555554
[  121.126637][  T228] Call Trace:
[  121.126796][  T228]  <TASK>
[ 121.126907][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.127141][ T228] ? __warn (kernel/panic.c:748) 
[ 121.127310][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.127522][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 121.127747][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 121.127911][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 121.128124][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 121.128392][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.128628][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 121.128890][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 121.129103][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 121.129335][ T228] register_netdevice (net/core/dev.c:11003) 
[ 121.129553][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 121.129786][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 121.130030][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 121.130308][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 121.130475][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 121.130760][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 121.131037][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 121.131318][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 121.131537][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 121.131800][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 121.132024][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 121.132201][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 121.132439][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 121.132662][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 121.132875][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 121.133083][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 121.133315][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 121.133570][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 121.133812][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 121.134020][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 121.134329][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 121.134543][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 121.134760][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 121.134968][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 121.135184][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 121.135394][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 121.135619][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 121.135876][ T228] device_add (drivers/base/core.c:3672) 
[ 121.136165][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 121.136396][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 121.136636][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 121.136930][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 121.137213][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 121.137425][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 121.137643][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 121.137870][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 121.138084][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 121.138269][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 121.138486][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 121.138706][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 121.138932][ T228] ksys_write (fs/read_write.c:731) 
[ 121.139096][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 121.139332][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 121.139546][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  121.139803][  T228] RIP: 0033:0x7ff309e74b77
[ 121.140019][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  121.140768][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  121.141080][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff309e74b77
[  121.141395][  T228] RDX: 0000000000000004 RSI: 000055f776af8330 RDI: 0000000000000001
[  121.141739][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  121.142057][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000004
[  121.142373][  T228] R13: 00007ff309f30760 R14: 0000000000000004 R15: 00007ff309f2b9c0
| [  121.186693][  T228] ------------[ cut here ]------------
| [ 121.187030][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  121.187450][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  121.188336][  T228] Tainted: [W]=WARN
[  121.188525][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 121.188773][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.189032][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  121.189743][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  121.190005][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  121.190314][  T228] RDX: 0000000000000000 RSI: ffff88800e33ac98 RDI: ffff888004e60b28
[  121.190625][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  121.190925][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  121.191240][  T228] R13: ffff88800e33a128 R14: ffff88800e33a008 R15: ffff88800e33a000
[  121.191539][  T228] FS:  00007ff309d33740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  121.191884][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  121.192163][  T228] CR2: 000055f776acf000 CR3: 0000000009422001 CR4: 0000000000772ef0
[  121.192683][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  121.192991][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  121.193458][  T228] PKRU: 55555554
[  121.193616][  T228] Call Trace:
[  121.193774][  T228]  <TASK>
[ 121.193879][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.194093][ T228] ? __warn (kernel/panic.c:748) 
[ 121.194279][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.194500][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 121.194713][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 121.194879][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 121.195088][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 121.195325][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.195551][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 121.195809][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 121.196020][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 121.196257][ T228] register_netdevice (net/core/dev.c:11003) 
[ 121.196490][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 121.196705][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 121.196940][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 121.197221][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 121.197518][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 121.197779][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 121.197986][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 121.198211][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 121.198471][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 121.198674][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 121.198879][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 121.199084][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 121.199324][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 121.199494][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 121.199701][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 121.199916][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 121.200158][ T228] ksys_write (fs/read_write.c:731) 
[ 121.200322][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 121.200548][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 121.200757][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  121.201015][  T228] RIP: 0033:0x7ff309e74b77
[ 121.201241][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  121.201957][  T228] RSP: 002b:00007ffccd1e7148 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  121.202279][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  121.202583][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  121.202887][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  121.203385][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[  121.203685][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  123.558663][  T228] ------------[ cut here ]------------
| [ 123.558905][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  123.559316][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  123.560103][  T228] Tainted: [W]=WARN
[  123.560299][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 123.560573][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 123.560841][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  123.561565][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  123.561824][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  123.562146][  T228] RDX: 0000000000000000 RSI: ffff88800bdb2c98 RDI: ffff888004e60b28
[  123.562463][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  123.562765][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  123.563074][  T228] R13: ffff88800bdb2128 R14: ffff88800bdb2008 R15: ffff88800bdb2000
[  123.563381][  T228] FS:  00007ff309d33740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  123.563727][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  123.563980][  T228] CR2: 000055f776ad71e8 CR3: 0000000009422002 CR4: 0000000000772ef0
[  123.564318][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  123.564599][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  123.564898][  T228] PKRU: 55555554
[  123.565057][  T228] Call Trace:
[  123.565225][  T228]  <TASK>
[ 123.565327][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 123.565558][ T228] ? __warn (kernel/panic.c:748) 
[ 123.565721][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 123.565915][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 123.566115][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 123.566281][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 123.566496][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 123.566707][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 123.566910][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 123.567226][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 123.567453][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 123.567656][ T228] register_netdevice (net/core/dev.c:11003) 
[ 123.567875][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 123.568089][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 123.568338][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 123.568625][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 123.568906][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 123.569176][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 123.569383][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 123.569614][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 123.569885][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 123.570080][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 123.570310][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 123.570514][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 123.570737][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 123.570900][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 123.571104][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 123.571318][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 123.571518][ T228] ksys_write (fs/read_write.c:731) 
[ 123.571671][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 123.571896][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 123.572105][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  123.572387][  T228] RIP: 0033:0x7ff309e74b77
[ 123.572600][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  123.573311][  T228] RSP: 002b:00007ffccd1e7148 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  123.573645][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  123.573937][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  123.574253][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  123.574551][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[  123.574840][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  125.575172][  T228] ------------[ cut here ]------------
| [ 125.575536][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  125.575999][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  125.576946][  T228] Tainted: [W]=WARN
[  125.577108][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 125.577376][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.577696][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  125.578463][  T228] RSP: 0018:ffffc90000a67520 EFLAGS: 00010246
[  125.578745][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  125.579049][  T228] RDX: 0000000000000000 RSI: ffff8880026fac98 RDI: ffff888004e60b78
[  125.579586][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  125.579942][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  125.580285][  T228] R13: ffff8880026fa128 R14: ffff8880026fa008 R15: ffff8880026fa000
[  125.580616][  T228] FS:  00007ff309d33740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  125.580999][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.581313][  T228] CR2: 000055d38ae9aa10 CR3: 0000000009422005 CR4: 0000000000772ef0
[  125.581635][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  125.581959][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  125.582297][  T228] PKRU: 55555554
[  125.582463][  T228] Call Trace:
[  125.582628][  T228]  <TASK>
[ 125.582741][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.582956][ T228] ? __warn (kernel/panic.c:748) 
[ 125.583126][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.583379][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 125.583604][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 125.583772][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 125.583983][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 125.584225][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.584464][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 125.584749][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 125.584984][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 125.585221][ T228] register_netdevice (net/core/dev.c:11003) 
[ 125.585453][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 125.585697][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 125.585989][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 125.586283][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 125.586493][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 125.586782][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 125.587066][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 125.587358][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 125.587594][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 125.587872][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 125.588095][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 125.588277][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 125.588499][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 125.588715][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 125.588929][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 125.589160][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 125.589382][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 125.589648][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 125.589879][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 125.590087][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 125.590314][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 125.590529][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 125.590753][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 125.590965][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 125.591198][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 125.591408][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 125.591634][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 125.591878][ T228] device_add (drivers/base/core.c:3672) 
[ 125.592094][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 125.592323][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 125.592552][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 125.592820][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 125.593087][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 125.593302][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 125.593518][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 125.593724][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 125.593946][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 125.594114][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 125.594341][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 125.594566][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 125.594790][ T228] ksys_write (fs/read_write.c:731) 
[ 125.594958][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 125.595202][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 125.595424][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  125.595707][  T228] RIP: 0033:0x7ff309e74b77
[ 125.595939][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  125.596727][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  125.597056][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff309e74b77
[  125.597436][  T228] RDX: 0000000000000004 RSI: 000055f776af8330 RDI: 0000000000000001
[  125.597746][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  125.598064][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000004
[  125.598387][  T228] R13: 00007ff309f30760 R14: 0000000000000004 R15: 00007ff309f2b9c0
| [  125.738110][  T228] ------------[ cut here ]------------
| [ 125.738505][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  125.738900][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  125.739843][  T228] Tainted: [W]=WARN
[  125.740331][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 125.740564][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.740803][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  125.741540][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  125.741782][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  125.742059][  T228] RDX: 0000000000000000 RSI: ffff88800e5d2c98 RDI: ffff888004e60b28
[  125.742421][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  125.742701][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  125.742976][  T228] R13: ffff88800e5d2128 R14: ffff88800e5d2008 R15: ffff88800e5d2000
[  125.743276][  T228] FS:  00007ff309d33740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  125.743596][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.743837][  T228] CR2: 000055f776af8330 CR3: 0000000009422005 CR4: 0000000000772ef0
[  125.744111][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  125.744409][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  125.744686][  T228] PKRU: 55555554
[  125.744825][  T228] Call Trace:
[  125.744967][  T228]  <TASK>
[ 125.745075][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.745276][ T228] ? __warn (kernel/panic.c:748) 
[ 125.745421][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.745609][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 125.745808][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 125.745951][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 125.746149][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 125.746363][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.746581][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 125.746815][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 125.747005][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 125.747214][ T228] register_netdevice (net/core/dev.c:11003) 
[ 125.747413][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 125.747609][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 125.747816][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 125.748057][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 125.748331][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 125.748584][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 125.748774][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 125.748969][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 125.749223][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 125.749411][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 125.749608][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 125.749797][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 125.749990][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 125.750156][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 125.750355][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 125.750540][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 125.750749][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 125.750945][ T228] ksys_write (fs/read_write.c:731) 
[ 125.751090][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 125.751290][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 125.751490][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 125.751684][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  125.751913][  T228] RIP: 0033:0x7ff309e74b77
[ 125.752115][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  125.752775][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  125.753070][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  125.753363][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  125.753640][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  125.753914][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[  125.754200][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  126.453652][  T228] ------------[ cut here ]------------
| [ 126.453929][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  126.454399][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  126.456319][  T228] Tainted: [W]=WARN
[  126.456517][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 126.456795][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 126.457092][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  126.457987][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  126.458399][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  126.458770][  T228] RDX: 0000000000000000 RSI: ffff88800e33ac98 RDI: ffff888004e60b28
[  126.459095][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  126.459559][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  126.459892][  T228] R13: ffff88800e33a128 R14: ffff88800e33a008 R15: ffff88800e33a000
[  126.460341][  T228] FS:  00007ff309d33740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  126.460716][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  126.460979][  T228] CR2: 00007f9c004ad1b4 CR3: 0000000009422002 CR4: 0000000000772ef0
[  126.461424][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  126.461738][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  126.462043][  T228] PKRU: 55555554
[  126.462309][  T228] Call Trace:
[  126.462481][  T228]  <TASK>
[ 126.462592][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 126.462800][ T228] ? __warn (kernel/panic.c:748) 
[ 126.462973][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 126.463297][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 126.463518][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 126.463687][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 126.463897][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 126.464120][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 126.464433][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 126.464723][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 126.464938][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 126.465212][ T228] register_netdevice (net/core/dev.c:11003) 
[ 126.465429][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 126.465652][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 126.465881][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 126.466167][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 126.466481][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 126.466769][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 126.466995][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 126.467246][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 126.467530][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 126.467749][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 126.467973][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 126.468222][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 126.468466][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 126.468642][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 126.468864][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 126.469083][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 126.469338][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 126.469571][ T228] ksys_write (fs/read_write.c:731) 
[ 126.469740][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 126.469960][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 126.470207][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 126.470432][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  126.470699][  T228] RIP: 0033:0x7ff309e74b77
[ 126.470926][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  126.471721][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  126.472045][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  126.472382][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  126.472706][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  126.473024][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[  126.473362][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  134.764971][  T228] ------------[ cut here ]------------
| [ 134.765361][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  134.765769][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  134.766645][  T228] Tainted: [W]=WARN
[  134.766805][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 134.767058][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 134.767346][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  134.768024][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  134.768315][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  134.768620][  T228] RDX: 0000000000000000 RSI: ffff888002472c98 RDI: ffff888004e60b28
[  134.768921][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  134.769269][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  134.769584][  T228] R13: ffff888002472128 R14: ffff888002472008 R15: ffff888002472000
[  134.769878][  T228] FS:  00007ff309d33740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  134.770253][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  134.770510][  T228] CR2: 000055d37ba7e148 CR3: 0000000009422005 CR4: 0000000000772ef0
[  134.770807][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  134.771104][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  134.771430][  T228] PKRU: 55555554
[  134.771594][  T228] Call Trace:
[  134.771755][  T228]  <TASK>
[ 134.771867][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 134.772077][ T228] ? __warn (kernel/panic.c:748) 
[ 134.772270][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 134.772484][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 134.772699][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 134.772864][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 134.773070][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 134.773336][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 134.773562][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 134.773816][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 134.774032][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 134.774270][ T228] register_netdevice (net/core/dev.c:11003) 
[ 134.774484][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 134.774706][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 134.774932][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 134.775221][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 134.775508][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 134.775769][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 134.775980][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 134.776217][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 134.776522][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 134.776744][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 134.776969][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 134.777250][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 134.777563][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 134.777852][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 134.778229][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 134.778576][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 134.778934][ T228] ksys_write (fs/read_write.c:731) 
[ 134.779222][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 134.779615][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 134.779958][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  134.780398][  T228] RIP: 0033:0x7ff309e74b77
[ 134.780770][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  134.781906][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  134.782313][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  134.782688][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  134.783048][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  134.783428][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000002
[  134.783738][  T228] R13: 00007ff309f30760 R14: 0000000000000002 R15: 00007ff309f2b9c0
| [  137.507872][  T228] ------------[ cut here ]------------
| [ 137.508750][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  137.509231][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  137.510191][  T228] Tainted: [W]=WARN
[  137.510531][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 137.510805][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 137.511073][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  137.511822][  T228] RSP: 0018:ffffc90000a67520 EFLAGS: 00010246
[  137.512091][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  137.512413][  T228] RDX: 0000000000000000 RSI: ffff88800d8b2c98 RDI: ffff888004e60b78
[  137.512730][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  137.513034][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  137.513383][  T228] R13: ffff88800d8b2128 R14: ffff88800d8b2008 R15: ffff88800d8b2000
[  137.513717][  T228] FS:  00007ff309d33740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  137.514075][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  137.514357][  T228] CR2: 000055f776ad4cdc CR3: 0000000009422001 CR4: 0000000000772ef0
[  137.514717][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  137.515255][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  137.515777][  T228] PKRU: 55555554
[  137.516036][  T228] Call Trace:
[  137.516206][  T228]  <TASK>
[ 137.516351][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 137.516566][ T228] ? __warn (kernel/panic.c:748) 
[ 137.516741][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 137.516953][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 137.517181][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 137.517364][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 137.517570][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 137.517804][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 137.518023][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 137.518336][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 137.518549][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 137.518776][ T228] register_netdevice (net/core/dev.c:11003) 
[ 137.518993][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 137.519229][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 137.519455][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 137.519756][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 137.519927][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 137.520219][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 137.520489][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 137.520821][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 137.521042][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 137.521315][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 137.521529][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 137.521703][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 137.521919][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 137.522150][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 137.522372][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 137.522580][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 137.522802][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 137.523057][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 137.523276][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 137.523480][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 137.523715][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 137.523931][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 137.524161][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 137.524368][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 137.524588][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 137.524823][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 137.525058][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 137.525299][ T228] device_add (drivers/base/core.c:3672) 
[ 137.525532][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 137.525762][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 137.525996][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 137.526314][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 137.526615][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 137.526853][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 137.527080][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 137.527324][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 137.527551][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 137.527742][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 137.527970][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 137.528217][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 137.528452][ T228] ksys_write (fs/read_write.c:731) 
[ 137.528626][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 137.528942][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 137.529187][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  137.529463][  T228] RIP: 0033:0x7ff309e74b77
[ 137.529714][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  137.530501][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  137.530851][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff309e74b77
[  137.531193][  T228] RDX: 0000000000000004 RSI: 000055f776af8330 RDI: 0000000000000001
[  137.531522][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  137.531866][  T228] R10: 00007ff309ee73e0 R11: 0000000000000246 R12: 0000000000000004
[  137.532211][  T228] R13: 00007ff309f30760 R14: 0000000000000004 R15: 00007ff309f2b9c0
| [  137.686551][  T228] ------------[ cut here ]------------
| [ 137.687114][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  137.687790][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  137.689072][  T228] Tainted: [W]=WARN
[  137.689335][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 137.689793][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 137.690201][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  137.691289][  T228] RSP: 0018:ffffc90000a67910 EFLAGS: 00010246
[  137.691716][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  137.692205][  T228] RDX: 0000000000000000 RSI: ffff88800e6eac98 RDI: ffff888004e60b28
[  137.692664][  T228] RBP: ffffffff9bb23440 R08: 0000000000000000 R09: fffffbfff333d83c
[  137.693175][  T228] R10: ffffffff999ec1e7 R11: ffff888004e60040 R12: 0000000000000000
[  137.693651][  T228] R13: ffff88800e6ea128 R14: ffff88800e6ea008 R15: ffff88800e6ea000
[  137.694143][  T228] FS:  00007ff309d33740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  137.694574][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  137.694827][  T228] CR2: 000055f776af8330 CR3: 0000000009422003 CR4: 0000000000772ef0
[  137.695470][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  137.695795][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  137.696097][  T228] PKRU: 55555554
[  137.696294][  T228] Call Trace:
[  137.696461][  T228]  <TASK>
[ 137.696572][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 137.696785][ T228] ? __warn (kernel/panic.c:748) 
[ 137.696946][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 137.697173][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 137.697389][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 137.697547][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 137.697751][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 137.697972][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 137.698208][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 137.698462][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 137.698692][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 137.698901][ T228] register_netdevice (net/core/dev.c:11003) 
[ 137.699111][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 137.699347][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 137.699572][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 137.699834][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 137.700116][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 137.700409][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 137.700615][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 137.700828][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 137.701085][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 137.701307][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 137.701514][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 137.701722][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 137.701926][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 137.702094][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 137.702324][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 137.702529][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 137.702740][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 137.702961][ T228] ksys_write (fs/read_write.c:731) 
[ 137.703120][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 137.703352][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 137.703565][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 137.703773][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  137.704028][  T228] RIP: 0033:0x7ff309e74b77
[ 137.704273][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  137.704944][  T228] RSP: 002b:00007ffccd1e9848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  137.705272][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff309e74b77
[  137.705564][  T228] RDX: 0000000000000002 RSI: 000055f776af8330 RDI: 0000000000000001
[  137.705866][  T228] RBP: 000055f776af8330 R08: 0000000000000000 R09: 00007ff309ee74e0
[  137.706180][  T228] R10: 00007ff309ee73e0 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