======================================
| 0
| xx__-> [    9.468340][  T228] ------------[ cut here ]------------
| [ 9.468681][ 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) 
| [    9.469193][  T228] Modules linked in: netdevsim
[    9.469839][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.470110][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.470378][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.471113][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[    9.471377][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.471684][  T228] RDX: 0000000000000000 RSI: ffff8880093c2c98 RDI: ffff888004bb2e38
[    9.471994][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[    9.472316][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[    9.472633][  T228] R13: ffff8880093c2128 R14: ffff8880093c2008 R15: ffff8880093c2000
[    9.472945][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[    9.473326][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.473600][  T228] CR2: 0000560ccf3f1338 CR3: 00000000058c4006 CR4: 0000000000772ef0
[    9.473913][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.474228][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.474535][  T228] PKRU: 55555554
[    9.474695][  T228] Call Trace:
[    9.474852][  T228]  <TASK>
[ 9.474969][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.475186][ T228] ? __warn (kernel/panic.c:748) 
[ 9.475347][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.475552][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.475762][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.475922][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.476136][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.476354][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.476567][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.476823][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.477034][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.477253][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.477468][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.477685][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.477905][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.478178][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.478337][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.478617][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.478878][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.479151][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.479375][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.479634][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.479842][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 9.479996][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.480215][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.480423][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.480629][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 9.480838][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.481044][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.481300][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.481507][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.481707][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.481910][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.482128][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.482342][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 9.482548][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.482748][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.482950][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 9.483173][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 9.483377][ T228] device_add (drivers/base/core.c:3672) 
[ 9.483587][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.483793][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.484010][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.484281][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.484547][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.484750][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.484958][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.485168][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.485382][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.485545][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.485757][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.485955][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.486175][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.486384][ T228] ksys_write (fs/read_write.c:731) 
[ 9.486539][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.486738][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.486956][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.487169][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.487417][  T228] RIP: 0033:0x7ff90314cb77
[ 9.487631][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    9.488350][  T228] RSP: 002b:00007ffd5a920bf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.488667][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff90314cb77
[    9.488969][  T228] RDX: 0000000000000004 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[    9.489282][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000003 R09: 0000000000000077
[    9.489588][  T228] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000004
[    9.489889][  T228] R13: 00007ff903208760 R14: 0000000000000004 R15: 00007ff9032039c0
| [   14.518558][  T228] ------------[ cut here ]------------
| [ 14.518904][ 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) 
| [   14.519312][  T228] Modules linked in: netdevsim [last unloaded: ip6_udp_tunnel]
| [   14.519999][  T228] Tainted: [W]=WARN
[   14.520204][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.520451][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.520701][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   14.521370][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   14.521623][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   14.521913][  T228] RDX: 0000000000000000 RSI: ffff888004972c98 RDI: ffff888004bb2de8
[   14.522220][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   14.522505][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   14.522796][  T228] R13: ffff888004972128 R14: ffff888004972008 R15: ffff888004972000
[   14.523296][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[   14.523640][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.523884][  T228] CR2: 0000560ccf3f0330 CR3: 00000000058c4003 CR4: 0000000000772ef0
[   14.524180][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   14.524467][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   14.524751][  T228] PKRU: 55555554
[   14.524906][  T228] Call Trace:
[   14.525056][  T228]  <TASK>
[ 14.525196][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.525392][ T228] ? __warn (kernel/panic.c:748) 
[ 14.525550][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.525752][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 14.525957][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 14.526120][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 14.526316][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 14.526537][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.526738][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 14.526987][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 14.527196][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 14.527399][ T228] register_netdevice (net/core/dev.c:11003) 
[ 14.527602][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 14.527818][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 14.528028][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 14.528287][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 14.528562][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 14.528817][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 14.529014][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 14.529236][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 14.529489][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 14.529686][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 14.529882][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 14.530091][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 14.530292][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 14.530453][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 14.530654][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 14.530865][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 14.531089][ T228] ksys_write (fs/read_write.c:731) 
[ 14.531246][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 14.531456][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 14.531654][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   14.531893][  T228] RIP: 0033:0x7ff90314cb77
[ 14.532102][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   14.532747][  T228] RSP: 002b:00007ffd5a920af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.533037][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   14.533327][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   14.533610][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   14.533893][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   14.534180][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   19.893843][  T228] ------------[ cut here ]------------
| [ 19.894312][ 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) 
| [   19.894755][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   19.895502][  T228] Tainted: [W]=WARN
[   19.895667][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.895944][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.896228][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   19.896977][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[   19.897259][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   19.897579][  T228] RDX: 0000000000000000 RSI: ffff88800d932c98 RDI: ffff888004bb2e38
[   19.897899][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   19.898373][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   19.898702][  T228] R13: ffff88800d932128 R14: ffff88800d932008 R15: ffff88800d932000
[   19.899029][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   19.899413][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.899687][  T228] CR2: 00007ff9031bf733 CR3: 00000000058c4003 CR4: 0000000000772ef0
[   19.900011][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   19.900340][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   19.900659][  T228] PKRU: 55555554
[   19.900827][  T228] Call Trace:
[   19.900992][  T228]  <TASK>
[ 19.901119][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.901343][ T228] ? __warn (kernel/panic.c:748) 
[ 19.901510][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.901729][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 19.901953][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 19.902128][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 19.902348][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 19.902582][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.902811][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 19.903100][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 19.903323][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 19.903546][ T228] register_netdevice (net/core/dev.c:11003) 
[ 19.903769][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 19.903996][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 19.904244][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 19.904524][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 19.904692][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 19.904973][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 19.905260][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 19.905542][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 19.905772][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 19.906048][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 19.906287][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 19.906453][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 19.906677][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 19.906901][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 19.907134][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 19.907354][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 19.907575][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 19.907846][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 19.908069][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 19.908302][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 19.908545][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 19.908761][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 19.908986][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 19.909216][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 19.909431][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 19.909652][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 19.909878][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 19.910112][ T228] device_add (drivers/base/core.c:3672) 
[ 19.910336][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 19.910550][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 19.910784][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 19.911065][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 19.911357][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.911571][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 19.911794][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.912010][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 19.912244][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 19.912417][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 19.912646][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 19.912862][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 19.913099][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 19.913324][ T228] ksys_write (fs/read_write.c:731) 
[ 19.913492][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 19.913729][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 19.914072][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 19.914307][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.914574][  T228] RIP: 0033:0x7ff90314cb77
[ 19.914798][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   19.915567][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   19.915895][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff90314cb77
[   19.916225][  T228] RDX: 0000000000000004 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   19.916546][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   19.916876][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000004
[   19.917205][  T228] R13: 00007ff903208760 R14: 0000000000000004 R15: 00007ff9032039c0
| [   19.964515][  T228] ------------[ cut here ]------------
| [ 19.964894][ 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) 
| [   19.965333][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   19.965999][  T228] Tainted: [W]=WARN
[   19.966247][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.966498][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.966747][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   19.967539][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   19.967796][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   19.968176][  T228] RDX: 0000000000000000 RSI: ffff888005a8ac98 RDI: ffff888004bb2de8
[   19.968482][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   19.968785][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   19.969169][  T228] R13: ffff888005a8a128 R14: ffff888005a8a008 R15: ffff888005a8a000
[   19.969459][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   19.969798][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.970052][  T228] CR2: 00007ff9031bf733 CR3: 00000000058c4003 CR4: 0000000000772ef0
[   19.970432][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   19.970740][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   19.971039][  T228] PKRU: 55555554
[   19.971279][  T228] Call Trace:
[   19.971436][  T228]  <TASK>
[ 19.971545][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.971758][ T228] ? __warn (kernel/panic.c:748) 
[ 19.971916][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.972213][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 19.972425][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 19.972583][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 19.972787][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 19.973003][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.973431][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 19.973695][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 19.973906][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 19.974133][ T228] register_netdevice (net/core/dev.c:11003) 
[ 19.974346][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 19.974564][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 19.974798][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 19.975061][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 19.975347][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 19.975609][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.975807][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 19.976014][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 19.976295][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.976492][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 19.976691][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 19.976889][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 19.977105][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 19.977265][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 19.977468][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 19.977674][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 19.977887][ T228] ksys_write (fs/read_write.c:731) 
[ 19.978046][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 19.978272][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 19.978493][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.978747][  T228] RIP: 0033:0x7ff90314cb77
[ 19.978957][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   19.979690][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   19.979995][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   19.980304][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   19.980609][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   19.980900][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   19.981204][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   26.205830][  T228] ------------[ cut here ]------------
| [ 26.206195][ 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) 
| [   26.206640][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   26.207493][  T228] Tainted: [W]=WARN
[   26.207675][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.207954][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 26.208246][ 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
[   26.209014][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[   26.209308][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   26.209637][  T228] RDX: 0000000000000000 RSI: ffff888004b9ac98 RDI: ffff888004bb2e38
[   26.209968][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   26.210312][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   26.210639][  T228] R13: ffff888004b9a128 R14: ffff888004b9a008 R15: ffff888004b9a000
[   26.210964][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[   26.211351][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.211627][  T228] CR2: 00007f2c3f907000 CR3: 00000000058c4003 CR4: 0000000000772ef0
[   26.212069][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.212412][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.212742][  T228] PKRU: 55555554
[   26.212917][  T228] Call Trace:
[   26.213104][  T228]  <TASK>
[ 26.213231][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 26.213465][ T228] ? __warn (kernel/panic.c:748) 
[ 26.213666][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 26.213894][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 26.214142][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 26.214317][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 26.214542][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 26.214788][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 26.215029][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 26.215330][ 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) 
[ 26.215569][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 26.215802][ T228] register_netdevice (net/core/dev.c:11003) 
[ 26.216036][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 26.216282][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 26.216528][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 26.216817][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 26.217000][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 26.217302][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 26.217590][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 26.217876][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 26.218127][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 26.218514][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 26.218756][ 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)) 
[ 26.218934][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 26.219184][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 26.219419][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 26.219655][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 26.219883][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 26.220122][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 26.220399][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 26.220624][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 26.220846][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 26.221073][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 26.221305][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 26.221534][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 26.221752][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 26.221976][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 26.222212][ 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) 
[ 26.222443][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 26.222674][ T228] device_add (drivers/base/core.c:3672) 
[ 26.222903][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 26.223138][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 26.223374][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 26.223661][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 26.223941][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 26.224169][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 26.224391][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 26.224607][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 26.224830][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 26.225011][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 26.225245][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 26.225463][ 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) 
[ 26.225688][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 26.225913][ T228] ksys_write (fs/read_write.c:731) 
[ 26.226094][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 26.226310][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 26.226540][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 26.226762][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.227026][  T228] RIP: 0033:0x7ff90314cb77
[ 26.227256][ 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
[   26.227970][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   26.228322][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff90314cb77
[   26.228643][  T228] RDX: 0000000000000004 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   26.228953][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   26.229279][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000004
[   26.229601][  T228] R13: 00007ff903208760 R14: 0000000000000004 R15: 00007ff9032039c0
| [   26.265283][  T228] ------------[ cut here ]------------
| [ 26.265696][ 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) 
| [   26.266116][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   26.266895][  T228] Tainted: [W]=WARN
[   26.267086][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.267344][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 26.267604][ 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
[   26.268322][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   26.268594][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   26.268898][  T228] RDX: 0000000000000000 RSI: ffff88800d93ac98 RDI: ffff888004bb2de8
[   26.269210][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   26.269604][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   26.269908][  T228] R13: ffff88800d93a128 R14: ffff88800d93a008 R15: ffff88800d93a000
[   26.270226][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[   26.270576][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.270833][  T228] CR2: 00007ff9031c13a1 CR3: 00000000058c4003 CR4: 0000000000772ef0
[   26.271159][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.271466][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.271760][  T228] PKRU: 55555554
[   26.271920][  T228] Call Trace:
[   26.272092][  T228]  <TASK>
[ 26.272208][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 26.272415][ T228] ? __warn (kernel/panic.c:748) 
[ 26.272581][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 26.272781][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 26.272985][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 26.273152][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 26.273352][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 26.273578][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 26.273789][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 26.274044][ 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) 
[ 26.274272][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 26.274479][ T228] register_netdevice (net/core/dev.c:11003) 
[ 26.274684][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 26.274895][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 26.275126][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 26.275377][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 26.275652][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 26.275902][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 26.276111][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 26.276318][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 26.276569][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 26.276771][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 26.276971][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 26.277182][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 26.277389][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 26.277549][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 26.277751][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 26.277959][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 26.278175][ T228] ksys_write (fs/read_write.c:731) 
[ 26.278344][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 26.278554][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 26.278757][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.278997][  T228] RIP: 0033:0x7ff90314cb77
[ 26.279210][ 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
[   26.279869][  T228] RSP: 002b:00007ffd5a921dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   26.280173][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   26.280459][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   26.280746][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   26.281033][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   26.281326][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   38.461859][  T228] ------------[ cut here ]------------
| [ 38.462174][ 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) 
| [   38.462551][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   38.463321][  T228] Tainted: [W]=WARN
[   38.463465][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 38.463696][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 38.463932][ 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
[   38.464595][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   38.464834][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   38.465118][  T228] RDX: 0000000000000000 RSI: ffff88800d8bac98 RDI: ffff888004bb2de8
[   38.465399][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   38.465671][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   38.465944][  T228] R13: ffff88800d8ba128 R14: ffff88800d8ba008 R15: ffff88800d8ba000
[   38.466233][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[   38.466555][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.466792][  T228] CR2: 00007ff9031bf733 CR3: 00000000058c4001 CR4: 0000000000772ef0
[   38.467069][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   38.467355][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   38.467629][  T228] PKRU: 55555554
[   38.467768][  T228] Call Trace:
[   38.467907][  T228]  <TASK>
[ 38.468008][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 38.468206][ T228] ? __warn (kernel/panic.c:748) 
[ 38.468384][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 38.468573][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 38.468767][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 38.468913][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 38.469112][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 38.469319][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 38.469514][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 38.469753][ 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) 
[ 38.469944][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 38.470146][ T228] register_netdevice (net/core/dev.c:11003) 
[ 38.470339][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 38.470539][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 38.470742][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 38.470987][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 38.471248][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 38.471494][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 38.471683][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 38.471883][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 38.472130][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 38.472320][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 38.472508][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 38.472698][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 38.472890][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 38.473042][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 38.473242][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 38.473440][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 38.473644][ T228] ksys_write (fs/read_write.c:731) 
[ 38.473788][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 38.473983][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 38.474180][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   38.474409][  T228] RIP: 0033:0x7ff90314cb77
[ 38.474600][ 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
[   38.475257][  T228] RSP: 002b:00007ffd5a921dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   38.475534][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   38.475809][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   38.476094][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   38.476374][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   38.476645][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   50.548744][  T228] ------------[ cut here ]------------
| [ 50.549182][ 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) 
| [   50.549594][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   50.550437][  T228] Tainted: [W]=WARN
[   50.550596][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 50.550850][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.551123][ 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
[   50.551836][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[   50.552101][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   50.552404][  T228] RDX: 0000000000000000 RSI: ffff888005a8ac98 RDI: ffff888004bb2e38
[   50.552708][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   50.553011][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   50.553360][  T228] R13: ffff888005a8a128 R14: ffff888005a8a008 R15: ffff888005a8a000
[   50.553670][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[   50.554028][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.554292][  T228] CR2: 00007ff7cbfcb000 CR3: 00000000058c4005 CR4: 0000000000772ef0
[   50.554595][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   50.554896][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   50.555206][  T228] PKRU: 55555554
[   50.555582][  T228] Call Trace:
[   50.555740][  T228]  <TASK>
[ 50.555847][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.556051][ T228] ? __warn (kernel/panic.c:748) 
[ 50.556221][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.556427][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 50.556637][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 50.556792][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 50.556998][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 50.557226][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.557441][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 50.557699][ 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) 
[ 50.557908][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 50.558125][ T228] register_netdevice (net/core/dev.c:11003) 
[ 50.558346][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 50.558561][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 50.558783][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 50.559045][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 50.559267][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 50.559534][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 50.559796][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 50.560058][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 50.560283][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 50.560540][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 50.560751][ 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)) 
[ 50.560905][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 50.561126][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 50.561338][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 50.561545][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 50.561750][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 50.561955][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 50.562221][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 50.562426][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 50.562626][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 50.562831][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 50.563032][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 50.563250][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 50.563453][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 50.563661][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 50.563865][ 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) 
[ 50.564090][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 50.564297][ T228] device_add (drivers/base/core.c:3672) 
[ 50.564502][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 50.564703][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 50.564917][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 50.565190][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 50.565454][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 50.565662][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 50.565872][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 50.566086][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 50.566296][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 50.566460][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 50.566673][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 50.566893][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 50.567112][ T228] ksys_write (fs/read_write.c:731) 
[ 50.567268][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 50.567485][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 50.567689][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   50.567939][  T228] RIP: 0033:0x7ff90314cb77
[ 50.568159][ 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
[   50.568873][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   50.569187][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff90314cb77
[   50.569488][  T228] RDX: 0000000000000004 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   50.569794][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   50.570101][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000004
[   50.570402][  T228] R13: 00007ff903208760 R14: 0000000000000004 R15: 00007ff9032039c0
| [   50.620566][  T228] ------------[ cut here ]------------
| [ 50.620849][ 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) 
| [   50.621232][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   50.622002][  T228] Tainted: [W]=WARN
[   50.622288][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 50.622522][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.622761][ 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
[   50.623414][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   50.623649][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   50.623917][  T228] RDX: 0000000000000000 RSI: ffff8880093c2c98 RDI: ffff888004bb2de8
[   50.624203][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   50.624479][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   50.624756][  T228] R13: ffff8880093c2128 R14: ffff8880093c2008 R15: ffff8880093c2000
[   50.625026][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[   50.625357][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.625590][  T228] CR2: 00007ffd5a921ff8 CR3: 00000000058c4005 CR4: 0000000000772ef0
[   50.625866][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   50.626150][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   50.626515][  T228] PKRU: 55555554
[   50.626659][  T228] Call Trace:
[   50.626798][  T228]  <TASK>
[ 50.626893][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.627095][ T228] ? __warn (kernel/panic.c:748) 
[ 50.627246][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.627432][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 50.627627][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 50.627770][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 50.627962][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 50.628182][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.628381][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 50.628622][ 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) 
[ 50.628818][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 50.629009][ T228] register_netdevice (net/core/dev.c:11003) 
[ 50.629210][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 50.629407][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 50.629607][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 50.629855][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 50.630119][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 50.630360][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 50.630544][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 50.630739][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 50.630979][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 50.631182][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 50.631370][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 50.631561][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 50.631752][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 50.631900][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 50.632100][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 50.632297][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 50.632494][ T228] ksys_write (fs/read_write.c:731) 
[ 50.632638][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 50.632831][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 50.633018][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   50.633258][  T228] RIP: 0033:0x7ff90314cb77
[ 50.633452][ T228] Code: Unable to access opcode bytes at 0x7ff90314cb4d.

Code starting with the faulting instruction
===========================================
[   50.633705][  T228] RSP: 002b:00007ffd5a921dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   50.633981][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   50.634262][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   50.634534][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   50.634807][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   50.635095][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   62.780921][  T228] ------------[ cut here ]------------
| [ 62.781360][ 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) 
| [   62.781739][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   62.782500][  T228] Tainted: [W]=WARN
[   62.782641][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 62.782878][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 62.783126][ 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
[   62.783771][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   62.784007][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   62.784292][  T228] RDX: 0000000000000000 RSI: ffff88800d932c98 RDI: ffff888004bb2de8
[   62.784565][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   62.784840][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   62.785120][  T228] R13: ffff88800d932128 R14: ffff88800d932008 R15: ffff88800d932000
[   62.785395][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[   62.785718][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   62.785952][  T228] CR2: 00007ff9031bf733 CR3: 00000000058c4005 CR4: 0000000000772ef0
[   62.786245][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   62.786526][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   62.786804][  T228] PKRU: 55555554
[   62.786945][  T228] Call Trace:
[   62.787096][  T228]  <TASK>
[ 62.787196][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 62.787383][ T228] ? __warn (kernel/panic.c:748) 
[ 62.787529][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 62.787717][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 62.787911][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 62.788055][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 62.788274][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 62.788475][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 62.788674][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 62.788913][ 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) 
[ 62.789114][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 62.789308][ T228] register_netdevice (net/core/dev.c:11003) 
[ 62.789504][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 62.789704][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 62.789906][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 62.790160][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 62.790422][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 62.790668][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 62.790856][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 62.791052][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 62.791306][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 62.791495][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 62.791688][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 62.791878][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 62.792082][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 62.792238][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 62.792430][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 62.792631][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 62.792830][ T228] ksys_write (fs/read_write.c:731) 
[ 62.792976][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 62.793185][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 62.793378][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   62.793609][  T228] RIP: 0033:0x7ff90314cb77
[ 62.793805][ 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
[   62.794462][  T228] RSP: 002b:00007ffd5a921dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   62.794744][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   62.795025][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   62.795311][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   62.795589][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   62.795867][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   75.157680][  T228] ------------[ cut here ]------------
| [ 75.158105][ 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) 
| [   75.158554][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   75.159559][  T228] Tainted: [W]=WARN
[   75.159727][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 75.160004][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.160310][ 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
[   75.161062][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[   75.162131][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   75.162467][  T228] RDX: 0000000000000000 RSI: ffff88800f3aac98 RDI: ffff888004bb2e38
[   75.162793][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   75.163122][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   75.163446][  T228] R13: ffff88800f3aa128 R14: ffff88800f3aa008 R15: ffff88800f3aa000
[   75.163766][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[   75.164165][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   75.164440][  T228] CR2: 00007f326ca9fa00 CR3: 00000000058c4003 CR4: 0000000000772ef0
[   75.164761][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   75.165096][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   75.165425][  T228] PKRU: 55555554
[   75.165590][  T228] Call Trace:
[   75.165754][  T228]  <TASK>
[ 75.165871][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.166100][ T228] ? __warn (kernel/panic.c:748) 
[ 75.166270][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.166487][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 75.166712][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 75.166885][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 75.167114][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 75.167348][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.167577][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 75.167854][ 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) 
[ 75.168114][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 75.168339][ T228] register_netdevice (net/core/dev.c:11003) 
[ 75.168565][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 75.168795][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 75.169030][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 75.169318][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 75.169488][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 75.169775][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 75.170055][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 75.170351][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 75.170616][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 75.170890][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 75.171126][ 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)) 
[ 75.171292][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 75.171517][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 75.171745][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 75.171966][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 75.172217][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 75.172441][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 75.172712][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 75.172932][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 75.173157][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 75.173381][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 75.173598][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 75.173828][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 75.174048][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 75.174275][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 75.174495][ 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) 
[ 75.174720][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 75.174949][ T228] device_add (drivers/base/core.c:3672) 
[ 75.175180][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 75.175404][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 75.175635][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 75.175920][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 75.176228][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 75.176446][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 75.176670][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 75.176883][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 75.177121][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 75.177298][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 75.177520][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 75.177748][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 75.177982][ T228] ksys_write (fs/read_write.c:731) 
[ 75.178179][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 75.178414][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 75.178636][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   75.178910][  T228] RIP: 0033:0x7ff90314cb77
[ 75.179146][ 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
[   75.179892][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   75.180246][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff90314cb77
[   75.180572][  T228] RDX: 0000000000000004 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   75.180889][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   75.181220][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000004
[   75.181548][  T228] R13: 00007ff903208760 R14: 0000000000000004 R15: 00007ff9032039c0
| [   75.216758][  T228] ------------[ cut here ]------------
| [ 75.217178][ 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) 
| [   75.217577][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   75.218411][  T228] Tainted: [W]=WARN
[   75.218660][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 75.218909][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.219178][ 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
[   75.219862][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   75.220123][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   75.220418][  T228] RDX: 0000000000000000 RSI: ffff88800f15ac98 RDI: ffff888004bb2de8
[   75.220717][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   75.221008][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   75.221310][  T228] R13: ffff88800f15a128 R14: ffff88800f15a008 R15: ffff88800f15a000
[   75.221602][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[   75.221946][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   75.222285][  T228] CR2: 00007f6c171a0000 CR3: 00000000058c4006 CR4: 0000000000772ef0
[   75.222584][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   75.222880][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   75.223277][  T228] PKRU: 55555554
[   75.223427][  T228] Call Trace:
[   75.223575][  T228]  <TASK>
[ 75.223677][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.223876][ T228] ? __warn (kernel/panic.c:748) 
[ 75.224030][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.224312][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 75.224519][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 75.224673][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 75.224876][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 75.225173][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.225382][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 75.225636][ 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) 
[ 75.225842][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 75.226045][ T228] register_netdevice (net/core/dev.c:11003) 
[ 75.226342][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 75.226551][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 75.226767][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 75.227030][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 75.227387][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 75.227641][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 75.227847][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 75.228059][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 75.228397][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 75.228585][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 75.228782][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 75.228973][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 75.229253][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 75.229410][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 75.229607][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 75.229809][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 75.230008][ T228] ksys_write (fs/read_write.c:731) 
[ 75.230211][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 75.230414][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 75.230601][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   75.230827][  T228] RIP: 0033:0x7ff90314cb77
[ 75.231024][ 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
[   75.231696][  T228] RSP: 002b:00007ffd5a9236b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   75.231977][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   75.232265][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   75.232552][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   75.232831][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   75.233115][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   82.600219][  T228] ------------[ cut here ]------------
| [ 82.600476][ 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) 
| [   82.600883][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   82.601839][  T228] Tainted: [W]=WARN
[   82.601994][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 82.602313][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 82.602573][ 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
[   82.603273][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   82.603534][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   82.603829][  T228] RDX: 0000000000000000 RSI: ffff888004b9ac98 RDI: ffff888004bb2de8
[   82.604141][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   82.604437][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   82.604729][  T228] R13: ffff888004b9a128 R14: ffff888004b9a008 R15: ffff888004b9a000
[   82.605022][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[   82.605376][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   82.605626][  T228] CR2: 00007ff9031bf733 CR3: 00000000058c4003 CR4: 0000000000772ef0
[   82.605928][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   82.606232][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   82.606528][  T228] PKRU: 55555554
[   82.606678][  T228] Call Trace:
[   82.606828][  T228]  <TASK>
[ 82.606931][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 82.607138][ T228] ? __warn (kernel/panic.c:748) 
[ 82.607295][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 82.607494][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 82.607704][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 82.607855][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 82.608069][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 82.608297][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 82.608505][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 82.608762][ 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) 
[ 82.608969][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 82.609185][ T228] register_netdevice (net/core/dev.c:11003) 
[ 82.609390][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 82.609602][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 82.609831][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 82.610098][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 82.610377][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 82.610636][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 82.610838][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 82.611051][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 82.611320][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 82.611519][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 82.611718][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 82.611926][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 82.612142][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 82.612302][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 82.612508][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 82.612719][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 82.612928][ T228] ksys_write (fs/read_write.c:731) 
[ 82.613091][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 82.613305][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 82.613514][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   82.613767][  T228] RIP: 0033:0x7ff90314cb77
[ 82.613976][ 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
[   82.614679][  T228] RSP: 002b:00007ffd5a9236b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   82.614989][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   82.615300][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   82.615597][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   82.615894][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   82.616210][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   89.752835][  T228] ------------[ cut here ]------------
| [ 89.753267][ 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) 
| [   89.753694][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   89.754554][  T228] Tainted: [W]=WARN
[   89.754715][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 89.754973][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.755252][ 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
[   89.755972][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[   89.756245][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   89.756556][  T228] RDX: 0000000000000000 RSI: ffff88800d93ac98 RDI: ffff888004bb2e38
[   89.756864][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   89.757281][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   89.757593][  T228] R13: ffff88800d93a128 R14: ffff88800d93a008 R15: ffff88800d93a000
[   89.757906][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[   89.758288][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.758549][  T228] CR2: 00007ff9031bf733 CR3: 00000000058c4004 CR4: 0000000000772ef0
[   89.758860][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   89.759178][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   89.759488][  T228] PKRU: 55555554
[   89.759649][  T228] Call Trace:
[   89.759806][  T228]  <TASK>
[ 89.759913][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.760133][ T228] ? __warn (kernel/panic.c:748) 
[ 89.760298][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.760511][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 89.760729][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 89.760892][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 89.761108][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 89.761336][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.761553][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 89.761816][ 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) 
[ 89.762033][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 89.762262][ T228] register_netdevice (net/core/dev.c:11003) 
[ 89.762483][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 89.762708][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 89.762960][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 89.763236][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 89.763400][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 89.763683][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 89.763948][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 89.764224][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 89.764449][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 89.764712][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 89.764925][ 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)) 
[ 89.765097][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 89.765315][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 89.765530][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 89.765740][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 89.765955][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 89.766177][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 89.766433][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 89.766643][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 89.766851][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 89.767060][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 89.767278][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 89.767499][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 89.767709][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 89.767914][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 89.768146][ 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) 
[ 89.768366][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 89.768576][ T228] device_add (drivers/base/core.c:3672) 
[ 89.768787][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 89.768997][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 89.769228][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 89.769496][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 89.769765][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 89.769977][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 89.770203][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 89.770408][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 89.770627][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 89.770794][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 89.771007][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 89.771236][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 89.771454][ T228] ksys_write (fs/read_write.c:731) 
[ 89.771612][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 89.771830][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 89.772040][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   89.772311][  T228] RIP: 0033:0x7ff90314cb77
[ 89.772526][ 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
[   89.773253][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   89.773573][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff90314cb77
[   89.773879][  T228] RDX: 0000000000000004 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   89.774196][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   89.774504][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000004
[   89.774815][  T228] R13: 00007ff903208760 R14: 0000000000000004 R15: 00007ff9032039c0
| [   89.821868][  T228] ------------[ cut here ]------------
| [ 89.822187][ 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) 
| [   89.822584][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   89.823379][  T228] Tainted: [W]=WARN
[   89.823527][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 89.823765][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.824014][ 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
[   89.824689][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   89.824930][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   89.825248][  T228] RDX: 0000000000000000 RSI: ffff88800d8bac98 RDI: ffff888004bb2de8
[   89.825534][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   89.825809][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   89.826096][  T228] R13: ffff88800d8ba128 R14: ffff88800d8ba008 R15: ffff88800d8ba000
[   89.826376][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[   89.826709][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.826951][  T228] CR2: 00007ffd5a921ff8 CR3: 00000000058c4004 CR4: 0000000000772ef0
[   89.827257][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   89.827554][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   89.827840][  T228] PKRU: 55555554
[   89.828111][  T228] Call Trace:
[   89.828259][  T228]  <TASK>
[ 89.828365][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.828559][ T228] ? __warn (kernel/panic.c:748) 
[ 89.828708][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.828907][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 89.829126][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 89.829275][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 89.829472][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 89.829682][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.829883][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 89.830136][ 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) 
[ 89.830328][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 89.830528][ T228] register_netdevice (net/core/dev.c:11003) 
[ 89.830723][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 89.830924][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 89.831139][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 89.831383][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 89.831642][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 89.831889][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 89.832091][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 89.832293][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 89.832541][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 89.832737][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 89.832929][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 89.833145][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 89.833355][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 89.833512][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 89.833713][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 89.833916][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 89.834130][ T228] ksys_write (fs/read_write.c:731) 
[ 89.834281][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 89.834481][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 89.834682][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   89.834919][  T228] RIP: 0033:0x7ff90314cb77
[ 89.835131][ T228] Code: Unable to access opcode bytes at 0x7ff90314cb4d.

Code starting with the faulting instruction
===========================================
[   89.835381][  T228] RSP: 002b:00007ffd5a921a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   89.835669][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   89.835954][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   89.836257][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   89.836532][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   89.836810][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   92.500316][  T228] ------------[ cut here ]------------
| [ 92.500582][ 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) 
| [   92.501003][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   92.501865][  T228] Tainted: [W]=WARN
[   92.502024][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.502297][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.502564][ 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
[   92.503468][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   92.503737][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   92.504053][  T228] RDX: 0000000000000000 RSI: ffff888005a8ac98 RDI: ffff888004bb2de8
[   92.504553][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   92.504864][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   92.505348][  T228] R13: ffff888005a8a128 R14: ffff888005a8a008 R15: ffff888005a8a000
[   92.505662][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   92.506016][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.506449][  T228] CR2: 0000560ccf3cf1e8 CR3: 00000000058c4005 CR4: 0000000000772ef0
[   92.506764][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   92.507070][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   92.507494][  T228] PKRU: 55555554
[   92.507655][  T228] Call Trace:
[   92.507813][  T228]  <TASK>
[ 92.507929][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.508276][ T228] ? __warn (kernel/panic.c:748) 
[ 92.508442][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.508648][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 92.508866][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 92.509023][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 92.509314][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 92.509536][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.509757][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 92.510027][ 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) 
[ 92.510347][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 92.510561][ T228] register_netdevice (net/core/dev.c:11003) 
[ 92.510775][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 92.510994][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 92.511305][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 92.511573][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 92.511863][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 92.512201][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 92.512410][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 92.512624][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 92.512888][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 92.513104][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 92.513317][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 92.513526][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 92.513740][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 92.513909][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 92.514130][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 92.514341][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 92.514552][ T228] ksys_write (fs/read_write.c:731) 
[ 92.514706][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 92.514922][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 92.515135][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   92.515379][  T228] RIP: 0033:0x7ff90314cb77
[ 92.515583][ 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
[   92.516345][  T228] RSP: 002b:00007ffd5a921a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   92.516650][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   92.516947][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   92.517253][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   92.517557][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   92.517848][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   94.938858][  T228] ------------[ cut here ]------------
| [ 94.939271][ 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) 
| [   94.939689][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   94.940549][  T228] Tainted: [W]=WARN
[   94.940708][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 94.940964][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.941690][ 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
[   94.942445][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[   94.942713][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   94.943018][  T228] RDX: 0000000000000000 RSI: ffff8880093c2c98 RDI: ffff888004bb2e38
[   94.943340][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   94.943656][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   94.943961][  T228] R13: ffff8880093c2128 R14: ffff8880093c2008 R15: ffff8880093c2000
[   94.944278][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[   94.944639][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   94.944901][  T228] CR2: 0000560ccf3c7000 CR3: 00000000058c4005 CR4: 0000000000772ef0
[   94.945221][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   94.945532][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   94.945843][  T228] PKRU: 55555554
[   94.946000][  T228] Call Trace:
[   94.946168][  T228]  <TASK>
[ 94.946279][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.946486][ T228] ? __warn (kernel/panic.c:748) 
[ 94.946647][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.946855][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 94.947068][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 94.947250][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 94.947555][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 94.947779][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.948005][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 94.948294][ 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) 
[ 94.948517][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 94.948734][ T228] register_netdevice (net/core/dev.c:11003) 
[ 94.948946][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 94.949178][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 94.949407][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 94.949675][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 94.949838][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 94.950119][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 94.950407][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 94.950670][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 94.950886][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 94.951157][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 94.951371][ 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)) 
[ 94.951535][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 94.951753][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 94.951967][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 94.952190][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 94.952397][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 94.952606][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 94.952861][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 94.953067][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 94.953288][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 94.953496][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 94.953702][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 94.953916][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 94.954133][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 94.954340][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 94.954546][ 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) 
[ 94.954765][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 94.954974][ T228] device_add (drivers/base/core.c:3672) 
[ 94.955193][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 94.955402][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 94.955620][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 94.955888][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 94.956169][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 94.956388][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 94.956603][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 94.956807][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 94.957019][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 94.957200][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 94.957412][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 94.957629][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 94.957847][ T228] ksys_write (fs/read_write.c:731) 
[ 94.958017][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 94.958250][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 94.958461][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   94.958715][  T228] RIP: 0033:0x7ff90314cb77
[ 94.958928][ 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
[   94.959658][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   94.959966][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff90314cb77
[   94.960291][  T228] RDX: 0000000000000004 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   94.960599][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   94.960908][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000004
[   94.961227][  T228] R13: 00007ff903208760 R14: 0000000000000004 R15: 00007ff9032039c0
| [   95.005415][  T228] ------------[ cut here ]------------
| [ 95.005709][ 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) 
| [   95.006184][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   95.006958][  T228] Tainted: [W]=WARN
[   95.007129][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 95.007431][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.007671][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   95.008343][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   95.008587][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   95.008863][  T228] RDX: 0000000000000000 RSI: ffff88800d932c98 RDI: ffff888004bb2de8
[   95.009149][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   95.009425][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   95.009705][  T228] R13: ffff88800d932128 R14: ffff88800d932008 R15: ffff88800d932000
[   95.009980][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[   95.010315][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   95.010546][  T228] CR2: 0000560ccf3c7000 CR3: 00000000058c4005 CR4: 0000000000772ef0
[   95.010925][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   95.011219][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   95.011494][  T228] PKRU: 55555554
[   95.011637][  T228] Call Trace:
[   95.011779][  T228]  <TASK>
[ 95.011877][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.012066][ T228] ? __warn (kernel/panic.c:748) 
[ 95.012231][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.012423][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 95.012619][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 95.012761][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 95.012949][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 95.013163][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 95.013360][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 95.013596][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 95.013794][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 95.013984][ T228] register_netdevice (net/core/dev.c:11003) 
[ 95.014191][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 95.014391][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 95.014593][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 95.014834][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 95.015109][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 95.015352][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 95.015540][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 95.015737][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 95.015980][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 95.016182][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 95.016372][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 95.016575][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 95.016767][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 95.016917][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 95.017124][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 95.017323][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 95.017519][ T228] ksys_write (fs/read_write.c:731) 
[ 95.017671][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 95.017878][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 95.018091][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   95.018320][  T228] RIP: 0033:0x7ff90314cb77
[ 95.018513][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   95.019168][  T228] RSP: 002b:00007ffd5a921ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   95.019458][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   95.019732][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   95.020008][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   95.020298][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   95.020584][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   97.450881][  T228] ------------[ cut here ]------------
| [ 97.451352][ 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) 
| [   97.451991][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   97.453356][  T228] Tainted: [W]=WARN
[   97.453611][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 97.454033][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 97.454478][ 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
[   97.455516][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   97.455851][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   97.456200][  T228] RDX: 0000000000000000 RSI: ffff88800f3aac98 RDI: ffff888004bb2de8
[   97.456524][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   97.456923][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   97.457409][  T228] R13: ffff88800f3aa128 R14: ffff88800f3aa008 R15: ffff88800f3aa000
[   97.457893][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   97.458473][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   97.458851][  T228] CR2: 00007ff9031bf733 CR3: 00000000058c4004 CR4: 0000000000772ef0
[   97.459314][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   97.459778][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   97.460219][  T228] PKRU: 55555554
[   97.460440][  T228] Call Trace:
[   97.460657][  T228]  <TASK>
[ 97.460810][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 97.461114][ T228] ? __warn (kernel/panic.c:748) 
[ 97.461343][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 97.461652][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 97.461984][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 97.462253][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 97.462570][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 97.462908][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 97.463247][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 97.463644][ 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) 
[ 97.463973][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 97.464308][ T228] register_netdevice (net/core/dev.c:11003) 
[ 97.464624][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 97.464956][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 97.465313][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 97.465730][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 97.466191][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 97.466587][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 97.466870][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 97.467182][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 97.467544][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 97.467846][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 97.468180][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 97.468480][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 97.468711][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 97.468967][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 97.469266][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 97.469590][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 97.469925][ T228] ksys_write (fs/read_write.c:731) 
[ 97.470196][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 97.470526][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 97.470782][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   97.471194][  T228] RIP: 0033:0x7ff90314cb77
[ 97.471526][ 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
[   97.472637][  T228] RSP: 002b:00007ffd5a921ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   97.473129][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   97.473609][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   97.474102][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   97.474587][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   97.475046][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [   99.680380][  T228] ------------[ cut here ]------------
| [ 99.681047][ 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) 
| [   99.681825][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   99.683359][  T228] Tainted: [W]=WARN
[   99.683565][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 99.683850][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.684167][ 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
[   99.685022][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[   99.685326][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   99.685697][  T228] RDX: 0000000000000000 RSI: ffff88800f15ac98 RDI: ffff888004bb2e38
[   99.686041][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   99.686409][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   99.686757][  T228] R13: ffff88800f15a128 R14: ffff88800f15a008 R15: ffff88800f15a000
[   99.687105][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[   99.687501][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   99.687800][  T228] CR2: 0000560ccf3e7658 CR3: 00000000058c4004 CR4: 0000000000772ef0
[   99.688163][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   99.688515][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   99.688858][  T228] PKRU: 55555554
[   99.689040][  T228] Call Trace:
[   99.689233][  T228]  <TASK>
[ 99.689361][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.689606][ T228] ? __warn (kernel/panic.c:748) 
[ 99.689926][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.690198][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 99.690454][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 99.690653][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 99.690891][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 99.691155][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.691405][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 99.691714][ 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) 
[ 99.691958][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 99.692216][ T228] register_netdevice (net/core/dev.c:11003) 
[ 99.692471][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 99.692722][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 99.692978][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 99.693321][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 99.693523][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 99.693825][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 99.694146][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 99.694441][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 99.694703][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 99.694997][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 99.695261][ 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)) 
[ 99.695443][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 99.695698][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 99.695938][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 99.696200][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 99.696435][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 99.696681][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 99.696976][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 99.697225][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 99.697466][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 99.697704][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 99.697938][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 99.698213][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 99.698458][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 99.698720][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 99.698959][ 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) 
[ 99.699214][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 99.699461][ T228] device_add (drivers/base/core.c:3672) 
[ 99.699703][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 99.699936][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 99.700198][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 99.700522][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 99.700819][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 99.701052][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 99.701305][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 99.701548][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 99.701789][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 99.701980][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 99.702247][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 99.702503][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 99.702742][ T228] ksys_write (fs/read_write.c:731) 
[ 99.702925][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 99.703184][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 99.703419][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   99.703716][  T228] RIP: 0033:0x7ff90314cb77
[ 99.703958][ 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
[   99.704754][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   99.705110][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff90314cb77
[   99.705456][  T228] RDX: 0000000000000004 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   99.705802][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   99.706164][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000004
[   99.706519][  T228] R13: 00007ff903208760 R14: 0000000000000004 R15: 00007ff9032039c0
| [   99.758960][  T228] ------------[ cut here ]------------
| [ 99.759267][ 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) 
| [   99.759659][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   99.760467][  T228] Tainted: [W]=WARN
[   99.760615][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 99.760853][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.761117][ 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
[   99.761802][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[   99.762044][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   99.762340][  T228] RDX: 0000000000000000 RSI: ffff888004b9ac98 RDI: ffff888004bb2de8
[   99.762634][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[   99.762925][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[   99.763223][  T228] R13: ffff888004b9a128 R14: ffff888004b9a008 R15: ffff888004b9a000
[   99.763509][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[   99.763845][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   99.764106][  T228] CR2: 00007ffd5a921ff8 CR3: 00000000058c4002 CR4: 0000000000772ef0
[   99.764494][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   99.764783][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   99.765069][  T228] PKRU: 55555554
[   99.765233][  T228] Call Trace:
[   99.765378][  T228]  <TASK>
[ 99.765478][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.765668][ T228] ? __warn (kernel/panic.c:748) 
[ 99.765818][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.766011][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 99.766222][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 99.766373][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 99.766567][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 99.766774][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.766977][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 99.767233][ 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) 
[ 99.767435][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 99.767631][ T228] register_netdevice (net/core/dev.c:11003) 
[ 99.767833][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 99.768052][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 99.768273][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 99.768522][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 99.768782][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 99.769030][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 99.769238][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 99.769440][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 99.769690][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 99.769880][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 99.770086][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 99.770283][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 99.770489][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 99.770654][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 99.770855][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 99.771333][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 99.771538][ T228] ksys_write (fs/read_write.c:731) 
[ 99.771688][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 99.771896][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 99.772219][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   99.772464][  T228] RIP: 0033:0x7ff90314cb77
[ 99.772667][ 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
[   99.773508][  T228] RSP: 002b:00007ffd5a921a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   99.773805][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[   99.774217][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[   99.774497][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[   99.774899][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[   99.775320][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [  101.963768][  T228] ------------[ cut here ]------------
| [ 101.964171][ 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) 
| [  101.964607][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  101.965498][  T228] Tainted: [W]=WARN
[  101.965671][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 101.965953][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 101.966242][ 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
[  101.966967][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[  101.967250][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  101.967577][  T228] RDX: 0000000000000000 RSI: ffff88800d93ac98 RDI: ffff888004bb2de8
[  101.967899][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[  101.969161][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[  101.969572][  T228] R13: ffff88800d93a128 R14: ffff88800d93a008 R15: ffff88800d93a000
[  101.969973][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  101.970440][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  101.970791][  T228] CR2: 0000560ccf3cf1e8 CR3: 00000000058c4003 CR4: 0000000000772ef0
[  101.971240][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  101.971731][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  101.972229][  T228] PKRU: 55555554
[  101.972568][  T228] Call Trace:
[  101.972839][  T228]  <TASK>
[ 101.972967][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 101.973201][ T228] ? __warn (kernel/panic.c:748) 
[ 101.973387][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 101.973609][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 101.973838][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 101.974011][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 101.974239][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 101.974478][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 101.974707][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 101.974985][ 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) 
[ 101.975270][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 101.975501][ T228] register_netdevice (net/core/dev.c:11003) 
[ 101.975725][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 101.975961][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 101.976212][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 101.976498][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 101.976795][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 101.977087][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 101.977310][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 101.977545][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 101.977816][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 101.978045][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 101.978289][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 101.978515][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 101.978740][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 101.978919][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 101.979150][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 101.979383][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 101.979612][ T228] ksys_write (fs/read_write.c:731) 
[ 101.979783][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 101.980019][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 101.980248][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  101.980514][  T228] RIP: 0033:0x7ff90314cb77
[ 101.980731][ 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
[  101.981458][  T228] RSP: 002b:00007ffd5a921a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  101.981774][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[  101.982096][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[  101.982408][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[  101.982730][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[  101.983064][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [  104.011455][  T228] ------------[ cut here ]------------
| [ 104.011864][ 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) 
| [  104.012305][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  104.013259][  T228] Tainted: [W]=WARN
[  104.013423][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 104.013683][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.013950][ 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
[  104.014778][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[  104.015042][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  104.015442][  T228] RDX: 0000000000000000 RSI: ffff88800d8bac98 RDI: ffff888004bb2e38
[  104.015754][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[  104.016059][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[  104.016469][  T228] R13: ffff88800d8ba128 R14: ffff88800d8ba008 R15: ffff88800d8ba000
[  104.016776][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  104.017233][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  104.017494][  T228] CR2: 00007f326ca9fa00 CR3: 00000000058c4002 CR4: 0000000000772ef0
[  104.017803][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  104.018183][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  104.018492][  T228] PKRU: 55555554
[  104.018654][  T228] Call Trace:
[  104.018816][  T228]  <TASK>
[ 104.018926][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.019146][ T228] ? __warn (kernel/panic.c:748) 
[ 104.019314][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.019527][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 104.019747][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 104.019907][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 104.020126][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 104.020350][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.020573][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 104.020836][ 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) 
[ 104.021050][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 104.021276][ T228] register_netdevice (net/core/dev.c:11003) 
[ 104.021489][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 104.021709][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 104.021940][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 104.022217][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 104.022382][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 104.022654][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 104.022920][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 104.023201][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 104.023424][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 104.023685][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 104.023922][ 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)) 
[ 104.024099][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 104.024316][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 104.024531][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 104.024743][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 104.024951][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 104.025174][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 104.025435][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 104.025646][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 104.025854][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 104.026062][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 104.026279][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 104.026493][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 104.026699][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 104.026909][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 104.027127][ 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) 
[ 104.027343][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 104.027553][ T228] device_add (drivers/base/core.c:3672) 
[ 104.027766][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 104.027980][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 104.028212][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 104.028493][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 104.028764][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.028968][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 104.029193][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.029398][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 104.029614][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 104.029781][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 104.029995][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 104.030221][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 104.030437][ T228] ksys_write (fs/read_write.c:731) 
[ 104.030595][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 104.030811][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 104.031019][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  104.031281][  T228] RIP: 0033:0x7ff90314cb77
[ 104.031500][ 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
[  104.032221][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  104.032538][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff90314cb77
[  104.032850][  T228] RDX: 0000000000000004 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[  104.033168][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[  104.033474][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000004
[  104.033778][  T228] R13: 00007ff903208760 R14: 0000000000000004 R15: 00007ff9032039c0
| [  104.071816][  T228] ------------[ cut here ]------------
| [ 104.072268][ 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) 
| [  104.072685][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  104.073510][  T228] Tainted: [W]=WARN
[  104.073663][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 104.073916][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.074182][ 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
[  104.074893][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[  104.075165][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  104.075476][  T228] RDX: 0000000000000000 RSI: ffff888005a8ac98 RDI: ffff888004bb2de8
[  104.075782][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[  104.076092][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[  104.076396][  T228] R13: ffff888005a8a128 R14: ffff888005a8a008 R15: ffff888005a8a000
[  104.076712][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[  104.077058][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  104.077319][  T228] CR2: 00007f326cc2bce0 CR3: 00000000058c4003 CR4: 0000000000772ef0
[  104.077623][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  104.077929][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  104.078373][  T228] PKRU: 55555554
[  104.078531][  T228] Call Trace:
[  104.078683][  T228]  <TASK>
[ 104.078789][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.078988][ T228] ? __warn (kernel/panic.c:748) 
[ 104.079152][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.079352][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 104.079567][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 104.079718][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 104.079920][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 104.080142][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 104.080355][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 104.080611][ 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) 
[ 104.080818][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 104.081032][ T228] register_netdevice (net/core/dev.c:11003) 
[ 104.081248][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 104.081458][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 104.081676][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 104.081937][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 104.082224][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 104.082487][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.082694][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 104.082900][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 104.083166][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 104.083367][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 104.083568][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 104.083769][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 104.083978][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 104.084156][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 104.084366][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 104.084586][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 104.084802][ T228] ksys_write (fs/read_write.c:731) 
[ 104.084961][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 104.085186][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 104.085393][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  104.085646][  T228] RIP: 0033:0x7ff90314cb77
[ 104.085854][ 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
[  104.086545][  T228] RSP: 002b:00007ffd5a921c98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  104.086841][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[  104.087153][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[  104.087444][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[  104.087735][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[  104.088041][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [  106.178828][  T228] ------------[ cut here ]------------
| [ 106.179062][ 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) 
| [  106.179469][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  106.180410][  T228] Tainted: [W]=WARN
[  106.180563][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 106.180801][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.181044][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  106.181827][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[  106.182070][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  106.182442][  T228] RDX: 0000000000000000 RSI: ffff8880093c2c98 RDI: ffff888004bb2de8
[  106.182723][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[  106.183010][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[  106.183388][  T228] R13: ffff8880093c2128 R14: ffff8880093c2008 R15: ffff8880093c2000
[  106.183672][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[  106.184004][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  106.184335][  T228] CR2: 0000560ccf3cf1e8 CR3: 00000000058c4003 CR4: 0000000000772ef0
[  106.184626][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  106.184911][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  106.185287][  T228] PKRU: 55555554
[  106.185436][  T228] Call Trace:
[  106.185581][  T228]  <TASK>
[ 106.185685][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.185876][ T228] ? __warn (kernel/panic.c:748) 
[ 106.186029][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.186310][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 106.186515][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 106.186664][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 106.186858][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 106.187063][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.187415][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 106.187663][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 106.187865][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 106.188241][ T228] register_netdevice (net/core/dev.c:11003) 
[ 106.188445][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 106.188651][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 106.188863][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 106.189292][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 106.189561][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 106.189812][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.190005][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 106.190397][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 106.190646][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.190841][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 106.191033][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 106.191347][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 106.191546][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 106.191703][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 106.191904][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 106.192216][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 106.192416][ T228] ksys_write (fs/read_write.c:731) 
[ 106.192563][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 106.192760][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 106.192951][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  106.193201][  T228] RIP: 0033:0x7ff90314cb77
[ 106.193398][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  106.194049][  T228] RSP: 002b:00007ffd5a921c98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  106.194347][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[  106.194629][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[  106.194904][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[  106.195200][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[  106.195477][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [  107.961606][  T228] ------------[ cut here ]------------
| [ 107.962034][ 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) 
| [  107.962477][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  107.963524][  T228] Tainted: [W]=WARN
[  107.963684][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 107.963941][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.964232][ 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
[  107.964955][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[  107.965227][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  107.965538][  T228] RDX: 0000000000000000 RSI: ffff88800d932c98 RDI: ffff888004bb2e38
[  107.965854][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[  107.966175][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[  107.966485][  T228] R13: ffff88800d932128 R14: ffff88800d932008 R15: ffff88800d932000
[  107.966786][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  107.967151][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  107.967415][  T228] CR2: 00007fd7242e2000 CR3: 00000000058c4002 CR4: 0000000000772ef0
[  107.967731][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  107.968057][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  107.968376][  T228] PKRU: 55555554
[  107.968536][  T228] Call Trace:
[  107.968691][  T228]  <TASK>
[ 107.968802][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.969010][ T228] ? __warn (kernel/panic.c:748) 
[ 107.969185][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.969398][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 107.969616][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 107.969776][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 107.969981][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 107.970230][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.970477][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 107.970740][ 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) 
[ 107.970953][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 107.971177][ T228] register_netdevice (net/core/dev.c:11003) 
[ 107.971390][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 107.971608][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 107.971838][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 107.972115][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 107.972275][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 107.972548][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 107.972810][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 107.973085][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 107.973309][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 107.973568][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 107.973780][ 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)) 
[ 107.973936][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 107.974162][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 107.974378][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 107.974589][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 107.974800][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 107.975011][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 107.975273][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 107.975487][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 107.975692][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 107.975903][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 107.976119][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 107.976339][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 107.976546][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 107.976750][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 107.976959][ 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) 
[ 107.977184][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 107.977396][ T228] device_add (drivers/base/core.c:3672) 
[ 107.977608][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 107.977816][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 107.978044][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 107.978325][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 107.978594][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 107.978797][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 107.979010][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 107.979225][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 107.979444][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 107.979609][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 107.979827][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 107.980045][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 107.980272][ T228] ksys_write (fs/read_write.c:731) 
[ 107.980432][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 107.980651][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 107.980861][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  107.981129][  T228] RIP: 0033:0x7ff90314cb77
[ 107.981342][ 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
[  107.982052][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  107.982381][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff90314cb77
[  107.982687][  T228] RDX: 0000000000000004 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[  107.982990][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[  107.983304][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000004
[  107.983612][  T228] R13: 00007ff903208760 R14: 0000000000000004 R15: 00007ff9032039c0
| [  108.088266][  T228] ------------[ cut here ]------------
| [ 108.088566][ 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) 
| [  108.088959][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  108.089764][  T228] Tainted: [W]=WARN
[  108.089910][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 108.090151][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.090393][ 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
[  108.091058][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[  108.091305][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  108.091581][  T228] RDX: 0000000000000000 RSI: ffff88800f3aac98 RDI: ffff888004bb2de8
[  108.091863][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[  108.092149][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[  108.092429][  T228] R13: ffff88800f3aa128 R14: ffff88800f3aa008 R15: ffff88800f3aa000
[  108.092705][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  108.093150][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  108.093390][  T228] CR2: 0000560ccf3f0330 CR3: 00000000058c4002 CR4: 0000000000772ef0
[  108.093669][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  108.093948][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  108.094229][  T228] PKRU: 55555554
[  108.094369][  T228] Call Trace:
[  108.094513][  T228]  <TASK>
[ 108.094610][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.094798][ T228] ? __warn (kernel/panic.c:748) 
[ 108.094943][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.095143][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 108.095338][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 108.095481][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 108.095669][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 108.095873][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.096093][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 108.096339][ 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) 
[ 108.096539][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 108.096737][ T228] register_netdevice (net/core/dev.c:11003) 
[ 108.096931][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 108.097144][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 108.097355][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 108.097600][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 108.097862][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 108.098137][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.098329][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 108.098531][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 108.098780][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.098967][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 108.099171][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 108.099371][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 108.099566][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 108.099717][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 108.099910][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 108.100106][ 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) 
[ 108.100309][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 108.100508][ T228] ksys_write (fs/read_write.c:731) 
[ 108.100652][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 108.100837][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 108.101038][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 108.101235][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  108.101464][  T228] RIP: 0033:0x7ff90314cb77
[ 108.101655][ 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
[  108.102313][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  108.102596][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[  108.102874][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[  108.103168][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[  108.103446][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[  108.103724][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [  108.714174][  T228] ------------[ cut here ]------------
| [ 108.714492][ 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) 
| [  108.714892][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  108.715835][  T228] Tainted: [W]=WARN
[  108.715990][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 108.716251][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.716518][ 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
[  108.717204][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[  108.717452][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  108.717750][  T228] RDX: 0000000000000000 RSI: ffff88800f15ac98 RDI: ffff888004bb2de8
[  108.718052][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[  108.718347][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[  108.718631][  T228] R13: ffff88800f15a128 R14: ffff88800f15a008 R15: ffff88800f15a000
[  108.718915][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  108.719253][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  108.719493][  T228] CR2: 0000560ccf3f0330 CR3: 00000000058c4002 CR4: 0000000000772ef0
[  108.719777][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  108.720063][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  108.720354][  T228] PKRU: 55555554
[  108.720499][  T228] Call Trace:
[  108.720642][  T228]  <TASK>
[ 108.720741][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.720933][ T228] ? __warn (kernel/panic.c:748) 
[ 108.721090][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.721286][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 108.721496][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 108.721647][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 108.721845][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 108.722052][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.722262][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 108.722509][ 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) 
[ 108.722711][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 108.722910][ T228] register_netdevice (net/core/dev.c:11003) 
[ 108.723117][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 108.723322][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 108.723529][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 108.723776][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 108.724037][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 108.724299][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.724489][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 108.724688][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 108.724933][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.725131][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 108.725325][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 108.725521][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 108.725724][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 108.725877][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 108.726082][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 108.726277][ 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) 
[ 108.726476][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 108.726675][ T228] ksys_write (fs/read_write.c:731) 
[ 108.726822][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 108.727016][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 108.727228][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 108.727423][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  108.727656][  T228] RIP: 0033:0x7ff90314cb77
[ 108.727850][ 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
[  108.728529][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  108.728813][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[  108.729104][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[  108.729387][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[  108.729673][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[  108.729952][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [  115.942400][  T228] ------------[ cut here ]------------
| [ 115.942713][ 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) 
| [  115.944060][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  115.944905][  T228] Tainted: [W]=WARN
[  115.945058][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 115.945320][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.945577][ 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
[  115.946290][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[  115.946544][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  115.946844][  T228] RDX: 0000000000000000 RSI: ffff888004b9ac98 RDI: ffff888004bb2de8
[  115.947156][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[  115.947455][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[  115.947749][  T228] R13: ffff888004b9a128 R14: ffff888004b9a008 R15: ffff888004b9a000
[  115.948060][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[  115.948422][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  115.948681][  T228] CR2: 00007ff9031bf733 CR3: 00000000058c4004 CR4: 0000000000772ef0
[  115.948982][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  115.949292][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  115.949593][  T228] PKRU: 55555554
[  115.949744][  T228] Call Trace:
[  115.949897][  T228]  <TASK>
[ 115.950003][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.950216][ T228] ? __warn (kernel/panic.c:748) 
[ 115.950373][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.950580][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 115.950799][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 115.950955][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 115.951219][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 115.951439][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.951653][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 115.951909][ 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) 
[ 115.952130][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 115.952337][ T228] register_netdevice (net/core/dev.c:11003) 
[ 115.952546][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 115.952763][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 115.952980][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 115.953250][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 115.953561][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 115.953819][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 115.954021][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 115.954246][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 115.954503][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 115.954705][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 115.954918][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 115.955133][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 115.955340][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 115.955497][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 115.955696][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 115.955893][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 115.956097][ T228] ksys_write (fs/read_write.c:731) 
[ 115.956242][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 115.956451][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 115.956642][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  115.956873][  T228] RIP: 0033:0x7ff90314cb77
[ 115.957067][ 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
[  115.957744][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  115.958045][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[  115.958344][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[  115.958620][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[  115.958893][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000002
[  115.959191][  T228] R13: 00007ff903208760 R14: 0000000000000002 R15: 00007ff9032039c0
| [  118.189564][  T228] ------------[ cut here ]------------
| [ 118.190010][ 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) 
| [  118.190520][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  118.191458][  T228] Tainted: [W]=WARN
[  118.191639][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 118.191926][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.192255][ 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
[  118.193041][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[  118.193350][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  118.193686][  T228] RDX: 0000000000000000 RSI: ffff88800d93ac98 RDI: ffff888004bb2e38
[  118.194033][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[  118.194383][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[  118.194719][  T228] R13: ffff88800d93a128 R14: ffff88800d93a008 R15: ffff88800d93a000
[  118.195183][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[  118.195581][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  118.195863][  T228] CR2: 0000560ccf3cccdc CR3: 00000000058c4005 CR4: 0000000000772ef0
[  118.196217][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  118.196558][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  118.196895][  T228] PKRU: 55555554
[  118.197092][  T228] Call Trace:
[  118.197273][  T228]  <TASK>
[ 118.197402][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.197640][ T228] ? __warn (kernel/panic.c:748) 
[ 118.197824][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.198068][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 118.198328][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 118.198513][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 118.198745][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 118.198997][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.199256][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 118.199547][ 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) 
[ 118.199785][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 118.200023][ T228] register_netdevice (net/core/dev.c:11003) 
[ 118.200279][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 118.200526][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 118.200781][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 118.201088][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 118.201301][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 118.201600][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 118.201894][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 118.202220][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 118.202465][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 118.202754][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 118.202998][ 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)) 
[ 118.203195][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 118.203441][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 118.203679][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 118.203917][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 118.204162][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 118.204404][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 118.204691][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 118.204926][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 118.205170][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 118.205406][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 118.205642][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 118.205882][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 118.206131][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 118.206369][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 118.206602][ 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) 
[ 118.206843][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 118.207094][ T228] device_add (drivers/base/core.c:3672) 
[ 118.207333][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 118.207566][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 118.207810][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 118.208129][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 118.208429][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.208662][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 118.208902][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.209149][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 118.209388][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 118.209577][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 118.209817][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 118.210060][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 118.210318][ T228] ksys_write (fs/read_write.c:731) 
[ 118.210501][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 118.210743][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 118.210979][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  118.211273][  T228] RIP: 0033:0x7ff90314cb77
[ 118.211514][ 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
[  118.212297][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  118.212640][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff90314cb77
[  118.212985][  T228] RDX: 0000000000000004 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[  118.213340][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[  118.213680][  T228] R10: 00007ff9031bf3e0 R11: 0000000000000246 R12: 0000000000000004
[  118.214016][  T228] R13: 00007ff903208760 R14: 0000000000000004 R15: 00007ff9032039c0
| [  118.336127][  T228] ------------[ cut here ]------------
| [ 118.336430][ 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) 
| [  118.336824][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  118.337653][  T228] Tainted: [W]=WARN
[  118.337802][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 118.338048][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.338308][ 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
[  118.338985][  T228] RSP: 0018:ffffc90000b27910 EFLAGS: 00010246
[  118.339239][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  118.339530][  T228] RDX: 0000000000000000 RSI: ffff888005a8ac98 RDI: ffff888004bb2de8
[  118.339813][  T228] RBP: ffffffffaef23440 R08: 0000000000000000 R09: fffffbfff59bd83c
[  118.340114][  T228] R10: ffffffffacdec1e7 R11: ffff888004bb2300 R12: 0000000000000000
[  118.340402][  T228] R13: ffff888005a8a128 R14: ffff888005a8a008 R15: ffff888005a8a000
[  118.340813][  T228] FS:  00007ff90300b740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[  118.341160][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  118.341406][  T228] CR2: 00007ff9031bf733 CR3: 00000000058c4001 CR4: 0000000000772ef0
[  118.341695][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  118.341985][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  118.342284][  T228] PKRU: 55555554
[  118.342433][  T228] Call Trace:
[  118.342588][  T228]  <TASK>
[ 118.342692][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.342889][ T228] ? __warn (kernel/panic.c:748) 
[ 118.343044][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.343241][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 118.343443][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 118.343598][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 118.343789][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 118.344004][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.344212][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 118.344467][ 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) 
[ 118.344667][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 118.344870][ T228] register_netdevice (net/core/dev.c:11003) 
[ 118.345083][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 118.345297][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 118.345511][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 118.345769][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 118.346030][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 118.346288][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.346486][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 118.346691][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 118.346941][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.347143][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 118.347338][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 118.347537][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 118.347733][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 118.347900][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 118.348108][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 118.348302][ 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) 
[ 118.348509][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 118.348708][ T228] ksys_write (fs/read_write.c:731) 
[ 118.348857][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 118.349052][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 118.349276][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 118.349473][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  118.349714][  T228] RIP: 0033:0x7ff90314cb77
[ 118.349905][ 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
[  118.350572][  T228] RSP: 002b:00007ffd5a924398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  118.350869][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff90314cb77
[  118.351162][  T228] RDX: 0000000000000002 RSI: 0000560ccf3f0330 RDI: 0000000000000001
[  118.351444][  T228] RBP: 0000560ccf3f0330 R08: 0000000000000000 R09: 00007ff9031bf4e0
[  118.351721][  T228] R10: 00007ff9031bf3e0 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