======================================
| 0
| xx__-> [   12.009311][  T228] ------------[ cut here ]------------
| [ 12.009762][ 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) 
| [   12.010322][  T228] Modules linked in: netdevsim
[   12.010925][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.011193][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.011472][ 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
[   12.012195][  T228] RSP: 0018:ffffc900006f7520 EFLAGS: 00010246
[   12.012513][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   12.012853][  T228] RDX: 0000000000000000 RSI: ffff88800b67ac98 RDI: ffff888009790b78
[   12.013169][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   12.013501][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   12.013826][  T228] R13: ffff88800b67a128 R14: ffff88800b67a008 R15: ffff88800b67a000
[   12.014138][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   12.014514][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.014784][  T228] CR2: 000055f6452b6338 CR3: 000000000aa9c005 CR4: 0000000000772ef0
[   12.015116][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   12.015438][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   12.015748][  T228] PKRU: 55555554
[   12.015930][  T228] Call Trace:
[   12.016104][  T228]  <TASK>
[ 12.016218][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.016454][ T228] ? __warn (kernel/panic.c:748) 
[ 12.016618][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.016827][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 12.017048][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 12.017208][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 12.017429][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 12.017655][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.017877][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 12.018142][ 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) 
[ 12.018356][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 12.018583][ T228] register_netdevice (net/core/dev.c:11003) 
[ 12.018806][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 12.019028][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 12.019253][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 12.019525][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 12.019686][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 12.019963][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 12.020242][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 12.020524][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 12.020746][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 12.021007][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 12.021220][ 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)) 
[ 12.021377][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 12.021606][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 12.021827][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 12.022035][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 12.022241][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 12.022459][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 12.022711][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 12.022917][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 12.023123][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 12.023334][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 12.023546][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 12.023758][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 12.023962][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 12.024162][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 12.024369][ 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) 
[ 12.024592][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 12.024813][ T228] device_add (drivers/base/core.c:3672) 
[ 12.025025][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 12.025231][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 12.025461][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 12.025725][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 12.026010][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 12.026219][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 12.026448][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 12.026651][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 12.026866][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 12.027033][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 12.027244][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 12.027457][ 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) 
[ 12.027674][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 12.027897][ T228] ksys_write (fs/read_write.c:731) 
[ 12.028055][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 12.028255][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 12.028479][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 12.028691][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   12.028945][  T228] RIP: 0033:0x7fe6ba243b77
[ 12.029342][ 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
[   12.030069][  T228] RSP: 002b:00007ffe65a79e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   12.030387][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6ba243b77
[   12.030706][  T228] RDX: 0000000000000004 RSI: 000055f6452b5330 RDI: 0000000000000001
[   12.031020][  T228] RBP: 000055f6452b5330 R08: 0000000000000003 R09: 0000000000000077
[   12.031325][  T228] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000004
[   12.031643][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000004 R15: 00007fe6ba2fa9c0
| [   18.372073][  T228] ------------[ cut here ]------------
| [ 18.372430][ 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) 
| [   18.372844][  T228] Modules linked in: netdevsim [last unloaded: ip6_udp_tunnel]
| [   18.373579][  T228] Tainted: [W]=WARN
[   18.373753][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.374019][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.374256][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   18.374948][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[   18.375193][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   18.375657][  T228] RDX: 0000000000000000 RSI: ffff88800d78ac98 RDI: ffff888009790b28
[   18.376065][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   18.376362][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   18.376732][  T228] R13: ffff88800d78a128 R14: ffff88800d78a008 R15: ffff88800d78a000
[   18.377022][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   18.377346][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.377750][  T228] CR2: 000055f6452b5330 CR3: 000000000aa9c002 CR4: 0000000000772ef0
[   18.378048][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   18.378323][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   18.378758][  T228] PKRU: 55555554
[   18.378903][  T228] Call Trace:
[   18.379045][  T228]  <TASK>
[ 18.379150][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.379357][ T228] ? __warn (kernel/panic.c:748) 
[ 18.379656][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.379847][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 18.380074][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 18.380222][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 18.380613][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 18.380842][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.381061][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 18.381322][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 18.381558][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 18.381791][ T228] register_netdevice (net/core/dev.c:11003) 
[ 18.382013][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 18.382249][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 18.382506][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 18.382783][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 18.383074][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 18.383349][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 18.383570][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 18.383797][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 18.384065][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 18.384267][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 18.384486][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 18.384695][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 18.384910][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 18.385076][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 18.385285][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 18.385516][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 18.385737][ T228] ksys_write (fs/read_write.c:731) 
[ 18.385914][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 18.386126][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 18.386330][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.386580][  T228] RIP: 0033:0x7fe6ba243b77
[ 18.386830][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   18.387559][  T228] RSP: 002b:00007ffe65a79d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   18.387943][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[   18.388364][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[   18.388836][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   18.389218][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[   18.389633][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [   24.772031][  T228] ------------[ cut here ]------------
| [ 24.772423][ 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) 
| [   24.772913][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   24.773674][  T228] Tainted: [W]=WARN
[   24.773854][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.774137][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.774445][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   24.775217][  T228] RSP: 0018:ffffc900006f7520 EFLAGS: 00010246
[   24.775645][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   24.776023][  T228] RDX: 0000000000000000 RSI: ffff8880024cac98 RDI: ffff888009790b78
[   24.776363][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   24.776845][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   24.777188][  T228] R13: ffff8880024ca128 R14: ffff8880024ca008 R15: ffff8880024ca000
[   24.777542][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   24.777941][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.778228][  T228] CR2: 00007fe6ba2b6733 CR3: 000000000aa9c005 CR4: 0000000000772ef0
[   24.778583][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.778923][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.779263][  T228] PKRU: 55555554
[   24.779458][  T228] Call Trace:
[   24.779642][  T228]  <TASK>
[ 24.779771][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.780009][ T228] ? __warn (kernel/panic.c:748) 
[ 24.780194][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.780441][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 24.780683][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 24.780873][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 24.781106][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 24.781355][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.781608][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 24.781889][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 24.782119][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 24.782341][ T228] register_netdevice (net/core/dev.c:11003) 
[ 24.782585][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 24.782816][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 24.783064][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 24.783348][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 24.783530][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 24.783825][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 24.784124][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 24.784424][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 24.784661][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 24.784941][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 24.785167][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 24.785335][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 24.785579][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 24.785822][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 24.786054][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 24.786278][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 24.786514][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 24.786797][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 24.787026][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 24.787258][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 24.787490][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 24.787722][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 24.787946][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 24.788164][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 24.788379][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 24.788621][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 24.788864][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 24.789088][ T228] device_add (drivers/base/core.c:3672) 
[ 24.789325][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 24.789565][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 24.789811][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 24.790091][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 24.790369][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.790604][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 24.790839][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.791064][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 24.791291][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 24.791479][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 24.791704][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 24.791930][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 24.792171][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 24.792418][ T228] ksys_write (fs/read_write.c:731) 
[ 24.792605][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 24.792826][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 24.793065][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 24.793299][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.793577][  T228] RIP: 0033:0x7fe6ba243b77
[ 24.793803][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   24.794536][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   24.794857][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6ba243b77
[   24.795171][  T228] RDX: 0000000000000004 RSI: 000055f6452b5330 RDI: 0000000000000001
[   24.795499][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   24.795827][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000004
[   24.796151][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000004 R15: 00007fe6ba2fa9c0
| [   24.839944][  T228] ------------[ cut here ]------------
| [ 24.840276][ 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) 
| [   24.840729][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   24.841399][  T228] Tainted: [W]=WARN
[   24.841556][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.841798][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.842045][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   24.842710][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[   24.842961][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   24.843249][  T228] RDX: 0000000000000000 RSI: ffff88800944ac98 RDI: ffff888009790b28
[   24.843551][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   24.843851][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   24.844138][  T228] R13: ffff88800944a128 R14: ffff88800944a008 R15: ffff88800944a000
[   24.844443][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   24.844785][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.845034][  T228] CR2: 00007fe6ba2b6733 CR3: 000000000aa9c005 CR4: 0000000000772ef0
[   24.845323][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.845620][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.846051][  T228] PKRU: 55555554
[   24.846211][  T228] Call Trace:
[   24.846362][  T228]  <TASK>
[ 24.846483][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.846714][ T228] ? __warn (kernel/panic.c:748) 
[ 24.846872][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.847079][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 24.847285][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 24.847460][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 24.847662][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 24.847875][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.848087][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 24.848339][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 24.848554][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 24.848772][ T228] register_netdevice (net/core/dev.c:11003) 
[ 24.848994][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 24.849219][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 24.849467][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 24.849748][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 24.850046][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 24.850321][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.850726][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 24.850954][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 24.851233][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.851478][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 24.851703][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 24.851926][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 24.852160][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 24.852336][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 24.852574][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 24.852912][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 24.853143][ T228] ksys_write (fs/read_write.c:731) 
[ 24.853435][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 24.853666][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 24.853999][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.854379][  T228] RIP: 0033:0x7fe6ba243b77
[ 24.854733][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   24.855451][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   24.855905][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[   24.856215][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[   24.856534][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   24.856957][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[   24.857268][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [   31.232321][  T228] ------------[ cut here ]------------
| [ 31.232719][ 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) 
| [   31.233591][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   31.234955][  T228] Tainted: [W]=WARN
[   31.235231][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.235700][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.236185][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   31.237424][  T228] RSP: 0018:ffffc900006f7520 EFLAGS: 00010246
[   31.237882][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   31.238431][  T228] RDX: 0000000000000000 RSI: ffff888002962c98 RDI: ffff888009790b78
[   31.238951][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   31.239494][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   31.240023][  T228] R13: ffff888002962128 R14: ffff888002962008 R15: ffff888002962000
[   31.240541][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   31.241429][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.241852][  T228] CR2: 00005651dc97b018 CR3: 000000000aa9c006 CR4: 0000000000772ef0
[   31.242362][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.242873][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.243415][  T228] PKRU: 55555554
[   31.243681][  T228] Call Trace:
[   31.243938][  T228]  <TASK>
[ 31.244123][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.244496][ T228] ? __warn (kernel/panic.c:748) 
[ 31.244759][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.245096][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 31.245477][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 31.245761][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 31.246110][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 31.246494][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.246850][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 31.247316][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 31.247704][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 31.248066][ T228] register_netdevice (net/core/dev.c:11003) 
[ 31.248458][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 31.248833][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 31.249217][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 31.249614][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 31.249880][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 31.250336][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 31.250822][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 31.251275][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 31.251667][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 31.252125][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 31.252519][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 31.252794][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 31.253190][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 31.253596][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 31.253980][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 31.254352][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 31.254749][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 31.255211][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 31.255587][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 31.255956][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 31.256277][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 31.256531][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 31.256808][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 31.257019][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 31.257226][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 31.257460][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 31.257699][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 31.257912][ T228] device_add (drivers/base/core.c:3672) 
[ 31.258124][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 31.258331][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 31.258572][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 31.258879][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 31.259154][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.259371][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 31.259621][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.259835][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 31.260052][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 31.260220][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 31.260461][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 31.260766][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 31.260991][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 31.261207][ T228] ksys_write (fs/read_write.c:731) 
[ 31.261370][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 31.261681][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 31.262036][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.262341][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.262770][  T228] RIP: 0033:0x7fe6ba243b77
[ 31.263114][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   31.264362][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   31.264938][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6ba243b77
[   31.265515][  T228] RDX: 0000000000000004 RSI: 000055f6452b5330 RDI: 0000000000000001
[   31.266097][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   31.266637][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000004
[   31.267179][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000004 R15: 00007fe6ba2fa9c0
| [   31.315087][  T228] ------------[ cut here ]------------
| [ 31.315454][ 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) 
| [   31.315896][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   31.316843][  T228] Tainted: [W]=WARN
[   31.316996][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.317233][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.317680][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   31.318382][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[   31.318740][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   31.319180][  T228] RDX: 0000000000000000 RSI: ffff88800d7e2c98 RDI: ffff888009790b28
[   31.319858][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   31.320327][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   31.320938][  T228] R13: ffff88800d7e2128 R14: ffff88800d7e2008 R15: ffff88800d7e2000
[   31.321676][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   31.322231][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.322986][  T228] CR2: 00007fe6ba1fb890 CR3: 000000000aa9c006 CR4: 0000000000772ef0
[   31.324031][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.324951][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.325274][  T228] PKRU: 55555554
[   31.325543][  T228] Call Trace:
[   31.325715][  T228]  <TASK>
[ 31.325836][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.326044][ T228] ? __warn (kernel/panic.c:748) 
[ 31.326202][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.326435][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 31.326665][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 31.326918][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 31.327252][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 31.327545][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.327767][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 31.328012][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 31.328208][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 31.328420][ T228] register_netdevice (net/core/dev.c:11003) 
[ 31.328616][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 31.328836][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 31.329080][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 31.329325][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 31.329602][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 31.329865][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.330055][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 31.330254][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 31.330530][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.330770][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 31.331086][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 31.331435][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 31.331733][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 31.331888][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 31.332081][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 31.332285][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 31.332501][ T228] ksys_write (fs/read_write.c:731) 
[ 31.332645][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 31.332858][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.333049][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.333281][  T228] RIP: 0033:0x7fe6ba243b77
[ 31.333498][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   31.334177][  T228] RSP: 002b:00007ffe65a7b058 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   31.334479][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[   31.334802][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[   31.335087][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   31.335365][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[   31.335675][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [   46.330115][  T228] ------------[ cut here ]------------
| [ 46.330420][ 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) 
| [   46.330845][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   46.331752][  T228] Tainted: [W]=WARN
[   46.331915][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.332177][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.332458][ 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
[   46.333194][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[   46.333461][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   46.333767][  T228] RDX: 0000000000000000 RSI: ffff888002ac2c98 RDI: ffff888009790b28
[   46.334079][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   46.334384][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   46.334707][  T228] R13: ffff888002ac2128 R14: ffff888002ac2008 R15: ffff888002ac2000
[   46.335020][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   46.335384][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.335667][  T228] CR2: 00007fe6ba187440 CR3: 000000000aa9c002 CR4: 0000000000772ef0
[   46.335999][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.336319][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.336645][  T228] PKRU: 55555554
[   46.336806][  T228] Call Trace:
[   46.336968][  T228]  <TASK>
[ 46.337077][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.337289][ T228] ? __warn (kernel/panic.c:748) 
[ 46.337460][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.337672][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 46.337890][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 46.338056][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 46.338273][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 46.338505][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.338723][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 46.338989][ 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) 
[ 46.339206][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 46.339428][ T228] register_netdevice (net/core/dev.c:11003) 
[ 46.339641][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 46.339856][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 46.340086][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 46.340359][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 46.340657][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 46.340929][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 46.341136][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 46.341351][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 46.341626][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 46.341829][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 46.342041][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 46.342253][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 46.342474][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 46.342642][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 46.342855][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 46.343078][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 46.343298][ T228] ksys_write (fs/read_write.c:731) 
[ 46.343469][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 46.343687][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 46.343897][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.344155][  T228] RIP: 0033:0x7fe6ba243b77
[ 46.344368][ 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
[   46.345103][  T228] RSP: 002b:00007ffe65a7b058 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   46.345403][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[   46.345698][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[   46.346007][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   46.346302][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[   46.346636][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [   61.322814][  T228] ------------[ cut here ]------------
| [ 61.323236][ 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) 
| [   61.323686][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   61.324658][  T228] Tainted: [W]=WARN
[   61.324834][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 61.325102][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.325375][ 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
[   61.326214][  T228] RSP: 0018:ffffc900006f7520 EFLAGS: 00010246
[   61.326512][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   61.326899][  T228] RDX: 0000000000000000 RSI: ffff888004e6ac98 RDI: ffff888009790b78
[   61.327238][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   61.327596][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   61.327928][  T228] R13: ffff888004e6a128 R14: ffff888004e6a008 R15: ffff888004e6a000
[   61.328248][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   61.328667][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   61.329364][  T228] CR2: 000055f627c66990 CR3: 000000000aa9c001 CR4: 0000000000772ef0
[   61.329711][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   61.330039][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   61.330350][  T228] PKRU: 55555554
[   61.330533][  T228] Call Trace:
[   61.330707][  T228]  <TASK>
[ 61.330819][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.331055][ T228] ? __warn (kernel/panic.c:748) 
[ 61.331221][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.331449][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 61.331674][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 61.331846][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 61.332083][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 61.332322][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.332578][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 61.332872][ 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) 
[ 61.333112][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 61.333335][ T228] register_netdevice (net/core/dev.c:11003) 
[ 61.333642][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 61.333979][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 61.334339][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 61.334819][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 61.335096][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 61.335620][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 61.336191][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 61.336686][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 61.337048][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 61.337516][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 61.337873][ 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)) 
[ 61.338135][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 61.338513][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 61.338854][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 61.339191][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 61.339555][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 61.339934][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 61.340382][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 61.340753][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 61.341082][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 61.341459][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 61.341804][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 61.342167][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 61.342544][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 61.342907][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 61.343261][ 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) 
[ 61.343512][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 61.343731][ T228] device_add (drivers/base/core.c:3672) 
[ 61.343971][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 61.344189][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 61.344430][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 61.344704][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 61.344984][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 61.345202][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 61.345447][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 61.345691][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 61.345920][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 61.346088][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 61.346297][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 61.346526][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 61.346779][ T228] ksys_write (fs/read_write.c:731) 
[ 61.346977][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 61.347196][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 61.347420][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   61.347682][  T228] RIP: 0033:0x7fe6ba243b77
[ 61.347914][ 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
[   61.348682][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   61.349012][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6ba243b77
[   61.349333][  T228] RDX: 0000000000000004 RSI: 000055f6452b5330 RDI: 0000000000000001
[   61.349658][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   61.349983][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000004
[   61.350305][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000004 R15: 00007fe6ba2fa9c0
| [   61.419207][  T228] ------------[ cut here ]------------
| [ 61.419739][ 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) 
| [   61.420144][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   61.420991][  T228] Tainted: [W]=WARN
[   61.421159][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 61.421464][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.421725][ 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
[   61.422424][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[   61.422688][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   61.422983][  T228] RDX: 0000000000000000 RSI: ffff888002962c98 RDI: ffff888009790b28
[   61.423278][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   61.423587][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   61.423885][  T228] R13: ffff888002962128 R14: ffff888002962008 R15: ffff888002962000
[   61.424174][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   61.424521][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   61.424843][  T228] CR2: 00007ffe65a7aff8 CR3: 000000000aa9c001 CR4: 0000000000772ef0
[   61.425159][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   61.425467][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   61.425783][  T228] PKRU: 55555554
[   61.425942][  T228] Call Trace:
[   61.426522][  T228]  <TASK>
[ 61.426659][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.426874][ T228] ? __warn (kernel/panic.c:748) 
[ 61.427058][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.427289][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 61.427519][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 61.427705][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 61.427914][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 61.428134][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.428353][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 61.428625][ 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) 
[ 61.428867][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 61.429087][ T228] register_netdevice (net/core/dev.c:11003) 
[ 61.429295][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 61.429525][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 61.429743][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 61.430012][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 61.430294][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 61.430583][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 61.430820][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 61.431031][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 61.431306][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 61.431519][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 61.431747][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 61.431965][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 61.432185][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 61.432374][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 61.432599][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 61.432836][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 61.433050][ T228] ksys_write (fs/read_write.c:731) 
[ 61.433212][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 61.433448][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 61.433658][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   61.433904][  T228] RIP: 0033:0x7fe6ba243b77
[ 61.434110][ 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
[   61.434811][  T228] RSP: 002b:00007ffe65a7b058 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   61.435124][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[   61.435726][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[   61.436020][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   61.436318][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[   61.437055][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [   76.557785][  T228] ------------[ cut here ]------------
| [ 76.558077][ 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) 
| [   76.558597][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   76.559564][  T228] Tainted: [W]=WARN
[   76.559759][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 76.560028][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.560404][ 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
[   76.561159][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[   76.561536][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   76.561911][  T228] RDX: 0000000000000000 RSI: ffff88800d7e2c98 RDI: ffff888009790b28
[   76.562312][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   76.562731][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   76.563112][  T228] R13: ffff88800d7e2128 R14: ffff88800d7e2008 R15: ffff88800d7e2000
[   76.563527][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   76.563947][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.564247][  T228] CR2: 00007fe6ba187440 CR3: 000000000aa9c004 CR4: 0000000000772ef0
[   76.564593][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   76.564966][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   76.565360][  T228] PKRU: 55555554
[   76.565557][  T228] Call Trace:
[   76.565787][  T228]  <TASK>
[ 76.565902][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.566121][ T228] ? __warn (kernel/panic.c:748) 
[ 76.566319][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.566629][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 76.566897][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 76.567067][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 76.567403][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 76.567641][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.567865][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 76.568224][ 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) 
[ 76.568586][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 76.568871][ T228] register_netdevice (net/core/dev.c:11003) 
[ 76.569093][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 76.569339][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 76.569705][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 76.569992][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 76.570368][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 76.570666][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 76.570933][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 76.571163][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 76.571574][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 76.571801][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 76.572028][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 76.572312][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 76.572548][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 76.572781][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 76.573009][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 76.573304][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 76.573561][ T228] ksys_write (fs/read_write.c:731) 
[ 76.573727][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 76.574006][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 76.574218][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   76.574563][  T228] RIP: 0033:0x7fe6ba243b77
[ 76.574804][ 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
[   76.575720][  T228] RSP: 002b:00007ffe65a7b058 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   76.576030][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[   76.576425][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[   76.576784][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   76.577173][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[   76.577515][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [   91.413472][  T228] ------------[ cut here ]------------
| [ 91.413864][ 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) 
| [   91.414317][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   91.415352][  T228] Tainted: [W]=WARN
[   91.415541][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 91.415851][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.416145][ 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
[   91.416946][  T228] RSP: 0018:ffffc900006f7520 EFLAGS: 00010246
[   91.417228][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   91.417569][  T228] RDX: 0000000000000000 RSI: ffff888002ac2c98 RDI: ffff888009790b78
[   91.417904][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   91.418243][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   91.418591][  T228] R13: ffff888002ac2128 R14: ffff888002ac2008 R15: ffff888002ac2000
[   91.418934][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   91.419319][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   91.419623][  T228] CR2: 00007fea5ef27a00 CR3: 000000000aa9c004 CR4: 0000000000772ef0
[   91.420198][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   91.420571][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   91.420913][  T228] PKRU: 55555554
[   91.421099][  T228] Call Trace:
[   91.421277][  T228]  <TASK>
[ 91.421410][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.421674][ T228] ? __warn (kernel/panic.c:748) 
[ 91.421859][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.422099][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 91.422333][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 91.422527][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 91.422770][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 91.423009][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.423244][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 91.423571][ 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) 
[ 91.423815][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 91.424045][ T228] register_netdevice (net/core/dev.c:11003) 
[ 91.424295][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 91.424551][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 91.424799][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 91.425089][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 91.425264][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 91.425586][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 91.425886][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 91.426177][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 91.426429][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 91.426734][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 91.426968][ 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)) 
[ 91.427139][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 91.427376][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 91.427630][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 91.427866][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 91.428100][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 91.428335][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 91.428639][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 91.428870][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 91.429088][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 91.429329][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 91.429575][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 91.429806][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 91.430052][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 91.430281][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 91.430529][ 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) 
[ 91.430764][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 91.430989][ T228] device_add (drivers/base/core.c:3672) 
[ 91.431219][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 91.431449][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 91.431681][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 91.432018][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 91.432310][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 91.432565][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 91.432794][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 91.433012][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 91.433236][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 91.433432][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 91.433659][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 91.433912][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 91.434147][ T228] ksys_write (fs/read_write.c:731) 
[ 91.434318][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 91.434562][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 91.434815][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   91.435102][  T228] RIP: 0033:0x7fe6ba243b77
[ 91.435346][ 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
[   91.436189][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   91.436564][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6ba243b77
[   91.436918][  T228] RDX: 0000000000000004 RSI: 000055f6452b5330 RDI: 0000000000000001
[   91.437252][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   91.437642][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000004
[   91.437958][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000004 R15: 00007fe6ba2fa9c0
| [   91.484656][  T228] ------------[ cut here ]------------
| [ 91.485050][ 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) 
| [   91.485607][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   91.486495][  T228] Tainted: [W]=WARN
[   91.486688][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 91.486944][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.487215][ 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
[   91.487947][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[   91.488212][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   91.488560][  T228] RDX: 0000000000000000 RSI: ffff888004e6ac98 RDI: ffff888009790b28
[   91.488865][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   91.489171][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   91.489496][  T228] R13: ffff888004e6a128 R14: ffff888004e6a008 R15: ffff888004e6a000
[   91.489799][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   91.490147][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   91.490416][  T228] CR2: 00007fea5efb39d0 CR3: 000000000aa9c004 CR4: 0000000000772ef0
[   91.490742][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   91.491050][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   91.491355][  T228] PKRU: 55555554
[   91.491530][  T228] Call Trace:
[   91.491689][  T228]  <TASK>
[ 91.491795][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.492004][ T228] ? __warn (kernel/panic.c:748) 
[ 91.492356][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.492603][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 91.492820][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 91.492982][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 91.493195][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 91.493432][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.493657][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 91.493917][ 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) 
[ 91.494139][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 91.494351][ T228] register_netdevice (net/core/dev.c:11003) 
[ 91.494586][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 91.494804][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 91.495029][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 91.495300][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 91.495639][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 91.495929][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 91.496147][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 91.496373][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 91.496688][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 91.496911][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 91.497140][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 91.497362][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 91.497610][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 91.497792][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 91.498012][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 91.498295][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 91.498517][ T228] ksys_write (fs/read_write.c:731) 
[ 91.498677][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 91.498894][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 91.499095][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   91.499349][  T228] RIP: 0033:0x7fe6ba243b77
[ 91.499564][ 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
[   91.500258][  T228] RSP: 002b:00007ffe65a7c948 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   91.500574][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[   91.500861][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[   91.501161][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   91.501466][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[   91.501760][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [   99.874865][  T228] ------------[ cut here ]------------
| [ 99.875170][ 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) 
| [   99.875637][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   99.876504][  T228] Tainted: [W]=WARN
[   99.876684][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 99.876953][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.877218][ 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
[   99.877994][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[   99.878263][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   99.878612][  T228] RDX: 0000000000000000 RSI: ffff888002962c98 RDI: ffff888009790b28
[   99.878911][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[   99.879242][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[   99.879565][  T228] R13: ffff888002962128 R14: ffff888002962008 R15: ffff888002962000
[   99.879865][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   99.880225][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   99.880517][  T228] CR2: 00007fe6ba187440 CR3: 000000000aa9c005 CR4: 0000000000772ef0
[   99.880818][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   99.881123][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   99.881452][  T228] PKRU: 55555554
[   99.881619][  T228] Call Trace:
[   99.881781][  T228]  <TASK>
[ 99.881887][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.882117][ T228] ? __warn (kernel/panic.c:748) 
[ 99.882283][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.882518][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 99.882733][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 99.882896][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 99.883133][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 99.883364][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 99.883589][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 99.883852][ 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) 
[ 99.884060][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 99.884290][ T228] register_netdevice (net/core/dev.c:11003) 
[ 99.884519][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 99.884771][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 99.885012][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 99.885278][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 99.885579][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 99.885852][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 99.886056][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 99.886271][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 99.886550][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 99.886756][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 99.886957][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 99.887160][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 99.887384][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 99.887570][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 99.887781][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 99.887999][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 99.888215][ T228] ksys_write (fs/read_write.c:731) 
[ 99.888376][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 99.888619][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 99.888836][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   99.889096][  T228] RIP: 0033:0x7fe6ba243b77
[ 99.889308][ 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
[   99.890044][  T228] RSP: 002b:00007ffe65a7c948 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   99.890359][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[   99.890681][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[   99.891000][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[   99.891315][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[   99.891630][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  108.432644][  T228] ------------[ cut here ]------------
| [ 108.433085][ 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) 
| [  108.433636][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  108.434655][  T228] Tainted: [W]=WARN
[  108.434831][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 108.435121][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.435434][ 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
[  108.436207][  T228] RSP: 0018:ffffc900006f7520 EFLAGS: 00010246
[  108.436511][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  108.436834][  T228] RDX: 0000000000000000 RSI: ffff88800d7e2c98 RDI: ffff888009790b78
[  108.437157][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  108.437506][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  108.437869][  T228] R13: ffff88800d7e2128 R14: ffff88800d7e2008 R15: ffff88800d7e2000
[  108.438485][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  108.438918][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  108.439228][  T228] CR2: 00007fe6ba187440 CR3: 000000000aa9c001 CR4: 0000000000772ef0
[  108.439611][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  108.439964][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  108.440326][  T228] PKRU: 55555554
[  108.440531][  T228] Call Trace:
[  108.440720][  T228]  <TASK>
[ 108.440853][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.441099][ T228] ? __warn (kernel/panic.c:748) 
[ 108.441284][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.441571][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 108.441878][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 108.442114][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 108.442423][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 108.442726][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.443056][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 108.443433][ 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) 
[ 108.443671][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 108.443914][ T228] register_netdevice (net/core/dev.c:11003) 
[ 108.444148][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 108.444403][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 108.444694][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 108.444973][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 108.445160][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 108.445483][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 108.445775][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 108.446052][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 108.446304][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 108.446591][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 108.446820][ 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)) 
[ 108.446999][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 108.447229][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 108.447468][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 108.447696][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 108.447922][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 108.448156][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 108.448479][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 108.448729][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 108.448960][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 108.449184][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 108.449415][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 108.449651][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 108.449871][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 108.450098][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 108.450331][ 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) 
[ 108.450571][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 108.450805][ T228] device_add (drivers/base/core.c:3672) 
[ 108.451052][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 108.451276][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 108.451523][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 108.451811][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 108.452093][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.452329][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 108.452584][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.452823][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 108.453072][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 108.453266][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 108.453518][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 108.453766][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 108.454011][ T228] ksys_write (fs/read_write.c:731) 
[ 108.454194][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 108.454454][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 108.454698][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  108.454985][  T228] RIP: 0033:0x7fe6ba243b77
[ 108.455226][ 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
[  108.456000][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  108.456331][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6ba243b77
[  108.456665][  T228] RDX: 0000000000000004 RSI: 000055f6452b5330 RDI: 0000000000000001
[  108.456981][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  108.457303][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000004
[  108.457642][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000004 R15: 00007fe6ba2fa9c0
| [  108.508326][  T228] ------------[ cut here ]------------
| [ 108.508746][ 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) 
| [  108.509154][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  108.510178][  T228] Tainted: [W]=WARN
[  108.510337][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 108.510605][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.510940][ 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
[  108.511812][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[  108.512171][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  108.512589][  T228] RDX: 0000000000000000 RSI: ffff888002ac2c98 RDI: ffff888009790b28
[  108.512897][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  108.513263][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  108.513574][  T228] R13: ffff888002ac2128 R14: ffff888002ac2008 R15: ffff888002ac2000
[  108.513903][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  108.514243][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  108.514507][  T228] CR2: 00007ffe65a7af48 CR3: 000000000aa9c001 CR4: 0000000000772ef0
[  108.515000][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  108.515291][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  108.515619][  T228] PKRU: 55555554
[  108.515791][  T228] Call Trace:
[  108.516002][  T228]  <TASK>
[ 108.516115][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.516327][ T228] ? __warn (kernel/panic.c:748) 
[ 108.516541][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.516770][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 108.517005][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 108.517215][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 108.517452][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 108.517702][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 108.517939][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 108.518226][ 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) 
[ 108.518495][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 108.518763][ T228] register_netdevice (net/core/dev.c:11003) 
[ 108.518998][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 108.519222][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 108.519520][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 108.519863][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 108.520315][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 108.520672][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.520952][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 108.521186][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 108.521455][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 108.521688][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 108.521912][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 108.522121][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 108.522331][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 108.522514][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 108.522762][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 108.523090][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 108.523319][ T228] ksys_write (fs/read_write.c:731) 
[ 108.523501][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 108.523851][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 108.524056][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  108.524304][  T228] RIP: 0033:0x7fe6ba243b77
[ 108.524557][ 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
[  108.525249][  T228] RSP: 002b:00007ffe65a7acc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  108.525603][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  108.525957][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  108.526260][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  108.526570][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[  108.526957][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  111.223874][  T228] ------------[ cut here ]------------
| [ 111.224204][ 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) 
| [  111.224725][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  111.225689][  T228] Tainted: [W]=WARN
[  111.225866][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 111.226142][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 111.226505][ 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
[  111.227262][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[  111.227625][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  111.227959][  T228] RDX: 0000000000000000 RSI: ffff888004e6ac98 RDI: ffff888009790b28
[  111.228292][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  111.228703][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  111.229038][  T228] R13: ffff888004e6a128 R14: ffff888004e6a008 R15: ffff888004e6a000
[  111.229368][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  111.229833][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  111.230110][  T228] CR2: 000055f6452941e8 CR3: 000000000aa9c001 CR4: 0000000000772ef0
[  111.230524][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  111.230855][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  111.231183][  T228] PKRU: 55555554
[  111.231352][  T228] Call Trace:
[  111.231604][  T228]  <TASK>
[ 111.231722][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 111.231943][ T228] ? __warn (kernel/panic.c:748) 
[ 111.232113][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 111.232341][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 111.232589][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 111.232766][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 111.232989][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 111.233225][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 111.233473][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 111.233759][ 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) 
[ 111.233994][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 111.234222][ T228] register_netdevice (net/core/dev.c:11003) 
[ 111.234460][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 111.234696][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 111.234941][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 111.235235][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 111.235567][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 111.235865][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 111.236100][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 111.236335][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 111.236629][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 111.236854][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 111.237075][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 111.237301][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 111.237537][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 111.237719][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 111.237946][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 111.238170][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 111.238415][ T228] ksys_write (fs/read_write.c:731) 
[ 111.238585][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 111.238816][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 111.239029][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  111.239311][  T228] RIP: 0033:0x7fe6ba243b77
[ 111.239546][ 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
[  111.240300][  T228] RSP: 002b:00007ffe65a7acc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  111.240641][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  111.240975][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  111.241292][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  111.241620][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[  111.241949][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  114.042266][  T228] ------------[ cut here ]------------
| [ 114.042682][ 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) 
| [  114.043154][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  114.044115][  T228] Tainted: [W]=WARN
[  114.044275][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 114.044566][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.044847][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  114.045616][  T228] RSP: 0018:ffffc900006f7520 EFLAGS: 00010246
[  114.045886][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  114.046209][  T228] RDX: 0000000000000000 RSI: ffff888002962c98 RDI: ffff888009790b78
[  114.046550][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  114.046902][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  114.047232][  T228] R13: ffff888002962128 R14: ffff888002962008 R15: ffff888002962000
[  114.047576][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  114.047966][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  114.048240][  T228] CR2: 00007fea5ef27a00 CR3: 000000000aa9c002 CR4: 0000000000772ef0
[  114.048623][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  114.048950][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  114.049473][  T228] PKRU: 55555554
[  114.049653][  T228] Call Trace:
[  114.049812][  T228]  <TASK>
[ 114.049921][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.050153][ T228] ? __warn (kernel/panic.c:748) 
[ 114.050318][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.050557][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 114.050828][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 114.050995][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 114.051207][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 114.051461][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.051687][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 114.051965][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 114.052181][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 114.052420][ T228] register_netdevice (net/core/dev.c:11003) 
[ 114.052641][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 114.052897][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 114.053133][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 114.053429][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 114.053601][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 114.053906][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 114.054196][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 114.054505][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 114.054765][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 114.055046][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 114.055310][ 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)) 
[ 114.055485][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 114.055706][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 114.055922][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 114.056132][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 114.056343][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 114.056570][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 114.056838][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 114.057054][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 114.057260][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 114.057483][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 114.057699][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 114.057918][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 114.058133][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 114.058343][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 114.058583][ 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) 
[ 114.058852][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 114.059066][ T228] device_add (drivers/base/core.c:3672) 
[ 114.059283][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 114.059522][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 114.059746][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 114.060023][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 114.060294][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 114.060518][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 114.060807][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 114.061136][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 114.061462][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 114.061743][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 114.062074][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 114.062485][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 114.062857][ T228] ksys_write (fs/read_write.c:731) 
[ 114.063115][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 114.063507][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 114.063871][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  114.064318][  T228] RIP: 0033:0x7fe6ba243b77
[ 114.064681][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  114.065969][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  114.066538][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6ba243b77
[  114.067085][  T228] RDX: 0000000000000004 RSI: 000055f6452b5330 RDI: 0000000000000001
[  114.067635][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  114.068141][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000004
[  114.068651][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000004 R15: 00007fe6ba2fa9c0
| [  114.102941][  T228] ------------[ cut here ]------------
| [ 114.103273][ 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) 
| [  114.104269][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  114.105071][  T228] Tainted: [W]=WARN
[  114.105240][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 114.105506][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.105794][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  114.106453][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[  114.106694][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  114.106981][  T228] RDX: 0000000000000000 RSI: ffff88800d7e2c98 RDI: ffff888009790b28
[  114.107274][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  114.107565][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  114.107847][  T228] R13: ffff88800d7e2128 R14: ffff88800d7e2008 R15: ffff88800d7e2000
[  114.108132][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  114.108475][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  114.108724][  T228] CR2: 00007fea5ef27a00 CR3: 000000000aa9c002 CR4: 0000000000772ef0
[  114.109150][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  114.109454][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  114.109732][  T228] PKRU: 55555554
[  114.109880][  T228] Call Trace:
[  114.110023][  T228]  <TASK>
[ 114.110123][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.110315][ T228] ? __warn (kernel/panic.c:748) 
[ 114.110503][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.110699][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 114.110901][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 114.111062][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 114.111265][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 114.111478][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.111675][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 114.111931][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 114.112130][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 114.112339][ T228] register_netdevice (net/core/dev.c:11003) 
[ 114.112550][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 114.112758][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 114.112966][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 114.113228][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 114.113514][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 114.113789][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 114.113992][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 114.114198][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 114.114471][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 114.114668][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 114.114875][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 114.115073][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 114.115268][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 114.115461][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 114.115662][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 114.115882][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 114.116084][ T228] ksys_write (fs/read_write.c:731) 
[ 114.116242][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 114.116461][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 114.116675][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  114.116917][  T228] RIP: 0033:0x7fe6ba243b77
[ 114.117124][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  114.117806][  T228] RSP: 002b:00007ffe65a7b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  114.118111][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  114.118413][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  114.118714][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  114.119017][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[  114.119313][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  116.849375][  T228] ------------[ cut here ]------------
| [ 116.849653][ 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) 
| [  116.850055][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  116.851519][  T228] Tainted: [W]=WARN
[  116.851668][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 116.851906][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.852150][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  116.853038][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[  116.853419][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  116.853815][  T228] RDX: 0000000000000000 RSI: ffff888002ac2c98 RDI: ffff888009790b28
[  116.854227][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  116.854648][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  116.855048][  T228] R13: ffff888002ac2128 R14: ffff888002ac2008 R15: ffff888002ac2000
[  116.855544][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  116.856035][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  116.856443][  T228] CR2: 00007fea5ef27a00 CR3: 000000000aa9c002 CR4: 0000000000772ef0
[  116.856888][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  116.857359][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  116.857846][  T228] PKRU: 55555554
[  116.858089][  T228] Call Trace:
[  116.858320][  T228]  <TASK>
[ 116.858501][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.858826][ T228] ? __warn (kernel/panic.c:748) 
[ 116.859072][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.859408][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 116.859749][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 116.859996][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 116.860314][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 116.860676][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 116.861017][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 116.861442][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 116.861766][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 116.862071][ T228] register_netdevice (net/core/dev.c:11003) 
[ 116.862376][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 116.862618][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 116.862829][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 116.863082][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 116.863365][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 116.863627][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 116.863830][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 116.864036][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 116.864291][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 116.864499][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 116.864696][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 116.864885][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 116.865081][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 116.865233][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 116.865461][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 116.865660][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 116.865861][ T228] ksys_write (fs/read_write.c:731) 
[ 116.866004][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 116.866206][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 116.866438][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  116.866672][  T228] RIP: 0033:0x7fe6ba243b77
[ 116.866868][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  116.867548][  T228] RSP: 002b:00007ffe65a7b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  116.867834][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  116.868109][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  116.868407][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  116.868689][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[  116.868968][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  119.563813][  T228] ------------[ cut here ]------------
| [ 119.564204][ 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) 
| [  119.564738][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  119.565673][  T228] Tainted: [W]=WARN
[  119.565918][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 119.566197][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 119.566499][ 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
[  119.567562][  T228] RSP: 0018:ffffc900006f7520 EFLAGS: 00010246
[  119.567859][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  119.568171][  T228] RDX: 0000000000000000 RSI: ffff888004e6ac98 RDI: ffff888009790b78
[  119.568498][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  119.568833][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  119.569150][  T228] R13: ffff888004e6a128 R14: ffff888004e6a008 R15: ffff888004e6a000
[  119.569483][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  119.569873][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  119.570133][  T228] CR2: 00005651dc943f40 CR3: 000000000aa9c001 CR4: 0000000000772ef0
[  119.570685][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  119.571010][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  119.571338][  T228] PKRU: 55555554
[  119.571683][  T228] Call Trace:
[  119.571867][  T228]  <TASK>
[ 119.572028][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 119.572248][ T228] ? __warn (kernel/panic.c:748) 
[ 119.572520][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 119.572854][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 119.573168][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 119.573355][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 119.573751][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 119.573995][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 119.574234][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 119.574644][ 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) 
[ 119.574898][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 119.575146][ T228] register_netdevice (net/core/dev.c:11003) 
[ 119.575406][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 119.575732][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 119.575980][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 119.576315][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 119.576494][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 119.576853][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 119.577213][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 119.577677][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 119.577915][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 119.578238][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 119.578467][ 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)) 
[ 119.578639][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 119.578863][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 119.579159][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 119.579433][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 119.579692][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 119.579984][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 119.580296][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 119.580563][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 119.580793][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 119.581013][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 119.581220][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 119.581514][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 119.581807][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 119.582011][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 119.582218][ 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) 
[ 119.582446][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 119.582725][ T228] device_add (drivers/base/core.c:3672) 
[ 119.583051][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 119.583320][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 119.583589][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 119.583928][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 119.584226][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 119.584471][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 119.584749][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 119.584954][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 119.585167][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 119.585351][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 119.585590][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 119.585816][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 119.586098][ T228] ksys_write (fs/read_write.c:731) 
[ 119.586261][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 119.586527][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 119.586759][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  119.587018][  T228] RIP: 0033:0x7fe6ba243b77
[ 119.587241][ 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
[  119.588134][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  119.588536][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6ba243b77
[  119.588883][  T228] RDX: 0000000000000004 RSI: 000055f6452b5330 RDI: 0000000000000001
[  119.589191][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  119.589521][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000004
[  119.589859][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000004 R15: 00007fe6ba2fa9c0
| [  119.640969][  T228] ------------[ cut here ]------------
| [ 119.641424][ 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) 
| [  119.641899][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  119.643419][  T228] Tainted: [W]=WARN
[  119.643634][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 119.643902][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 119.644213][ 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
[  119.645432][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[  119.645868][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  119.646366][  T228] RDX: 0000000000000000 RSI: ffff888002962c98 RDI: ffff888009790b28
[  119.646883][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  119.647382][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  119.647889][  T228] R13: ffff888002962128 R14: ffff888002962008 R15: ffff888002962000
[  119.648372][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  119.648965][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  119.649382][  T228] CR2: 00007ffe65a7af48 CR3: 000000000aa9c003 CR4: 0000000000772ef0
[  119.649905][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  119.650413][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  119.650899][  T228] PKRU: 55555554
[  119.651159][  T228] Call Trace:
[  119.651435][  T228]  <TASK>
[ 119.651623][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 119.651991][ T228] ? __warn (kernel/panic.c:748) 
[ 119.652268][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 119.652645][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 119.653008][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 119.653272][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 119.653632][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 119.654442][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 119.654821][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 119.655550][ 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) 
[ 119.656116][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 119.656749][ T228] register_netdevice (net/core/dev.c:11003) 
[ 119.657112][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 119.657744][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 119.658125][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 119.658615][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 119.659089][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 119.659539][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 119.660107][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 119.660497][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 119.660947][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 119.661287][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 119.661869][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 119.662212][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 119.662577][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 119.662856][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 119.663200][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 119.663594][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 119.663953][ T228] ksys_write (fs/read_write.c:731) 
[ 119.664409][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 119.664769][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 119.665281][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  119.665672][  T228] RIP: 0033:0x7fe6ba243b77
[ 119.666004][ 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
[  119.667672][  T228] RSP: 002b:00007ffe65a7acc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  119.668125][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  119.668563][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  119.669036][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  119.669684][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[  119.670138][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  122.233051][  T228] ------------[ cut here ]------------
| [ 122.233315][ 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) 
| [  122.233767][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  122.234639][  T228] Tainted: [W]=WARN
[  122.234817][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 122.235084][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 122.235434][ 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
[  122.236205][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[  122.236581][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  122.236992][  T228] RDX: 0000000000000000 RSI: ffff88800d7e2c98 RDI: ffff888009790b28
[  122.237298][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  122.237710][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  122.238033][  T228] R13: ffff88800d7e2128 R14: ffff88800d7e2008 R15: ffff88800d7e2000
[  122.238343][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  122.238868][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  122.239133][  T228] CR2: 000055f6452941e8 CR3: 000000000aa9c002 CR4: 0000000000772ef0
[  122.239606][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  122.239931][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  122.240237][  T228] PKRU: 55555554
[  122.240730][  T228] Call Trace:
[  122.240980][  T228]  <TASK>
[ 122.241155][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 122.241843][ T228] ? __warn (kernel/panic.c:748) 
[ 122.242106][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 122.242662][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 122.242994][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 122.243251][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 122.243802][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 122.244192][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 122.244713][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 122.245137][ 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) 
[ 122.245665][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 122.246021][ T228] register_netdevice (net/core/dev.c:11003) 
[ 122.246358][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 122.246836][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 122.247074][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 122.247348][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 122.247808][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 122.248086][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 122.248305][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 122.248616][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 122.248905][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 122.249115][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 122.249337][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 122.249732][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 122.249952][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 122.250124][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 122.250343][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 122.250727][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 122.251024][ T228] ksys_write (fs/read_write.c:731) 
[ 122.251286][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 122.251684][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 122.252027][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  122.252439][  T228] RIP: 0033:0x7fe6ba243b77
[ 122.252774][ 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
[  122.253930][  T228] RSP: 002b:00007ffe65a7acc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  122.254451][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  122.254946][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  122.255500][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  122.256010][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[  122.256487][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  124.673936][  T228] ------------[ cut here ]------------
| [ 124.674301][ 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) 
| [  124.674921][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  124.675853][  T228] Tainted: [W]=WARN
[  124.676017][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 124.676326][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 124.676660][ 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
[  124.677467][  T228] RSP: 0018:ffffc900006f7520 EFLAGS: 00010246
[  124.677756][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  124.678095][  T228] RDX: 0000000000000000 RSI: ffff888002ac2c98 RDI: ffff888009790b78
[  124.678450][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  124.678796][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  124.679140][  T228] R13: ffff888002ac2128 R14: ffff888002ac2008 R15: ffff888002ac2000
[  124.679491][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  124.679888][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  124.680173][  T228] CR2: 00007f3e5ac4b1b4 CR3: 000000000aa9c001 CR4: 0000000000772ef0
[  124.680524][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  124.680863][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  124.681199][  T228] PKRU: 55555554
[  124.681370][  T228] Call Trace:
[  124.681556][  T228]  <TASK>
[ 124.681680][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 124.681915][ T228] ? __warn (kernel/panic.c:748) 
[ 124.682093][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 124.682322][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 124.682567][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 124.682750][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 124.682985][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 124.683228][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 124.683491][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 124.683790][ 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) 
[ 124.684025][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 124.684259][ T228] register_netdevice (net/core/dev.c:11003) 
[ 124.684508][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 124.684750][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 124.684988][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 124.685274][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 124.685456][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 124.685808][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 124.686099][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 124.686402][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 124.686645][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 124.686933][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 124.687165][ 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)) 
[ 124.687337][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 124.687593][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 124.687832][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 124.688060][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 124.688288][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 124.688529][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 124.688811][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 124.689036][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 124.689270][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 124.689509][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 124.689733][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 124.689964][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 124.690193][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 124.690429][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 124.690657][ 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) 
[ 124.690897][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 124.691129][ T228] device_add (drivers/base/core.c:3672) 
[ 124.691360][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 124.691596][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 124.691833][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 124.692125][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 124.692426][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 124.692656][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 124.692889][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 124.693113][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 124.693342][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 124.693532][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 124.693761][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 124.694000][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 124.694246][ T228] ksys_write (fs/read_write.c:731) 
[ 124.694427][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 124.694668][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 124.694902][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  124.695180][  T228] RIP: 0033:0x7fe6ba243b77
[ 124.695422][ 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
[  124.696187][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  124.696539][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6ba243b77
[  124.696876][  T228] RDX: 0000000000000004 RSI: 000055f6452b5330 RDI: 0000000000000001
[  124.697213][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  124.697561][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000004
[  124.697896][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000004 R15: 00007fe6ba2fa9c0
| [  124.738287][  T228] ------------[ cut here ]------------
| [ 124.738627][ 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) 
| [  124.739045][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  124.739919][  T228] Tainted: [W]=WARN
[  124.740070][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 124.740302][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 124.740557][ 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
[  124.741233][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[  124.741498][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  124.741803][  T228] RDX: 0000000000000000 RSI: ffff888004e6ac98 RDI: ffff888009790b28
[  124.742107][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  124.742416][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  124.742727][  T228] R13: ffff888004e6a128 R14: ffff888004e6a008 R15: ffff888004e6a000
[  124.743032][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  124.743383][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  124.743653][  T228] CR2: 00007f3e5ac4b1b4 CR3: 000000000aa9c001 CR4: 0000000000772ef0
[  124.743969][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  124.744274][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  124.744614][  T228] PKRU: 55555554
[  124.744982][  T228] Call Trace:
[  124.745141][  T228]  <TASK>
[ 124.745263][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 124.745492][ T228] ? __warn (kernel/panic.c:748) 
[ 124.745657][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 124.745867][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 124.746086][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 124.746245][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 124.746461][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 124.746684][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 124.746896][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 124.747172][ 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) 
[ 124.747388][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 124.747758][ T228] register_netdevice (net/core/dev.c:11003) 
[ 124.747973][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 124.748190][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 124.748421][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 124.748702][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 124.748987][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 124.749253][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 124.749468][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 124.749687][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 124.749953][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 124.750163][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 124.750372][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 124.750586][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 124.750791][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 124.750947][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 124.751153][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 124.751375][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 124.751601][ T228] ksys_write (fs/read_write.c:731) 
[ 124.751769][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 124.751981][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 124.752306][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  124.752664][  T228] RIP: 0033:0x7fe6ba243b77
[ 124.752884][ 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
[  124.753733][  T228] RSP: 002b:00007ffe65a7af28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  124.754040][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  124.754469][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  124.754770][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  124.755211][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[  124.755546][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  127.182902][  T228] ------------[ cut here ]------------
| [ 127.183211][ 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) 
| [  127.184595][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  127.185432][  T228] Tainted: [W]=WARN
[  127.185625][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 127.185867][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 127.186121][ 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
[  127.186863][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[  127.187117][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  127.187419][  T228] RDX: 0000000000000000 RSI: ffff888002962c98 RDI: ffff888009790b28
[  127.187712][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  127.188013][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  127.188326][  T228] R13: ffff888002962128 R14: ffff888002962008 R15: ffff888002962000
[  127.188620][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  127.188958][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  127.189219][  T228] CR2: 000055f6452941e8 CR3: 000000000aa9c005 CR4: 0000000000772ef0
[  127.189526][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  127.189848][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  127.190163][  T228] PKRU: 55555554
[  127.190324][  T228] Call Trace:
[  127.190519][  T228]  <TASK>
[ 127.190639][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 127.190848][ T228] ? __warn (kernel/panic.c:748) 
[ 127.191010][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 127.191217][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 127.191460][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 127.191613][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 127.191833][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 127.192043][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 127.192243][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 127.192503][ 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) 
[ 127.192717][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 127.192920][ T228] register_netdevice (net/core/dev.c:11003) 
[ 127.193131][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 127.193352][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 127.193575][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 127.193832][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 127.194098][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 127.194357][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 127.194568][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 127.194778][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 127.195036][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 127.195246][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 127.195470][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 127.195708][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 127.195917][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 127.196081][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 127.196282][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 127.196505][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 127.196712][ T228] ksys_write (fs/read_write.c:731) 
[ 127.196859][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 127.197066][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 127.197261][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  127.197504][  T228] RIP: 0033:0x7fe6ba243b77
[ 127.197705][ 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
[  127.198370][  T228] RSP: 002b:00007ffe65a7af28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  127.198669][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  127.198950][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  127.199234][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  127.199528][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[  127.199810][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  129.290775][  T228] ------------[ cut here ]------------
| [ 129.291193][ 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) 
| [  129.291686][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  129.293027][  T228] Tainted: [W]=WARN
[  129.293205][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 129.293508][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 129.293802][ 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
[  129.294601][  T228] RSP: 0018:ffffc900006f7520 EFLAGS: 00010246
[  129.294892][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  129.295233][  T228] RDX: 0000000000000000 RSI: ffff888002ac2c98 RDI: ffff888009790b78
[  129.295584][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  129.295917][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  129.296257][  T228] R13: ffff888002ac2128 R14: ffff888002ac2008 R15: ffff888002ac2000
[  129.296654][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  129.297070][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  129.297367][  T228] CR2: 00007f28083a41b4 CR3: 000000000aa9c001 CR4: 0000000000772ef0
[  129.297733][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  129.298100][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  129.298512][  T228] PKRU: 55555554
[  129.298708][  T228] Call Trace:
[  129.298897][  T228]  <TASK>
[ 129.299022][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 129.299267][ T228] ? __warn (kernel/panic.c:748) 
[ 129.299467][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 129.299708][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 129.299963][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 129.300153][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 129.300406][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 129.300660][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 129.300907][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 129.301207][ 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) 
[ 129.301464][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 129.301705][ T228] register_netdevice (net/core/dev.c:11003) 
[ 129.302004][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 129.302250][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 129.302530][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 129.302837][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 129.303034][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 129.303347][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 129.303670][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 129.303986][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 129.304235][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 129.304544][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 129.304789][ 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)) 
[ 129.304980][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 129.305250][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 129.305517][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 129.305756][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 129.305998][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 129.306237][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 129.306541][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 129.306782][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 129.307020][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 129.307259][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 129.307503][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 129.307743][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 129.307976][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 129.308224][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 129.308472][ 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) 
[ 129.308723][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 129.308964][ T228] device_add (drivers/base/core.c:3672) 
[ 129.309215][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 129.309462][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 129.309714][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 129.310028][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 129.310336][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 129.310588][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 129.310845][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 129.311088][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 129.311328][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 129.311533][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 129.311785][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 129.312041][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 129.312283][ T228] ksys_write (fs/read_write.c:731) 
[ 129.312486][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 129.312735][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 129.312973][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  129.313280][  T228] RIP: 0033:0x7fe6ba243b77
[ 129.313552][ 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
[  129.314416][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  129.314790][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6ba243b77
[  129.315168][  T228] RDX: 0000000000000004 RSI: 000055f6452b5330 RDI: 0000000000000001
[  129.315573][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  129.316017][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000004
[  129.316429][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000004 R15: 00007fe6ba2fa9c0
| [  129.448237][  T228] ------------[ cut here ]------------
| [ 129.448680][ 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) 
| [  129.449148][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  129.450787][  T228] Tainted: [W]=WARN
[  129.450967][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 129.451208][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 129.451528][ 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
[  129.452326][  T228] RSP: 0000:ffffc900006f7910 EFLAGS: 00010246
[  129.452665][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  129.452988][  T228] RDX: 0000000000000000 RSI: ffff88800d7e2c98 RDI: ffff888009790b28
[  129.453298][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  129.453651][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  129.453938][  T228] R13: ffff88800d7e2128 R14: ffff88800d7e2008 R15: ffff88800d7e2000
[  129.454220][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  129.454597][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  129.454851][  T228] CR2: 00007faad0d230dc CR3: 000000000aa9c003 CR4: 0000000000772ef0
[  129.455135][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  129.455495][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  129.455811][  T228] PKRU: 55555554
[  129.455956][  T228] Call Trace:
[  129.456100][  T228]  <TASK>
[ 129.456203][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 129.456428][ T228] ? __warn (kernel/panic.c:748) 
[ 129.456581][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 129.456773][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 129.457342][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 129.457515][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 129.457736][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 129.458023][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 129.458241][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 129.458554][ 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) 
[ 129.458777][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 129.458991][ T228] register_netdevice (net/core/dev.c:11003) 
[ 129.459213][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 129.459497][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 129.459741][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 129.460014][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 129.460364][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 129.460684][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 129.460933][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 129.461162][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 129.461493][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 129.461743][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 129.462016][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 129.462257][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 129.462551][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 129.462727][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 129.462941][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 129.463159][ 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) 
[ 129.463470][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 129.463700][ T228] ksys_write (fs/read_write.c:731) 
[ 129.463867][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 129.464079][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 129.464306][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 129.464550][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  129.464817][  T228] RIP: 0033:0x7fe6ba243b77
[ 129.465031][ 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
[  129.465904][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  129.466239][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  129.466650][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  129.467035][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  129.467414][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[  129.467778][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  130.144894][  T228] ------------[ cut here ]------------
| [ 130.145280][ 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) 
| [  130.146243][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  130.147466][  T228] Tainted: [W]=WARN
[  130.147648][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 130.147904][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.148190][ 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
[  130.148877][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[  130.149121][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  130.149425][  T228] RDX: 0000000000000000 RSI: ffff888004e6ac98 RDI: ffff888009790b28
[  130.149727][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  130.150006][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  130.150286][  T228] R13: ffff888004e6a128 R14: ffff888004e6a008 R15: ffff888004e6a000
[  130.150575][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  130.150920][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  130.151155][  T228] CR2: 000055f6452b5330 CR3: 000000000aa9c005 CR4: 0000000000772ef0
[  130.151445][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  130.151976][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  130.152442][  T228] PKRU: 55555554
[  130.152674][  T228] Call Trace:
[  130.152901][  T228]  <TASK>
[ 130.153061][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.153374][ T228] ? __warn (kernel/panic.c:748) 
[ 130.153638][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.153956][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 130.154281][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 130.154519][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 130.154847][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 130.155188][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.155559][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 130.155961][ 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) 
[ 130.156288][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 130.156632][ T228] register_netdevice (net/core/dev.c:11003) 
[ 130.156952][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 130.157297][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 130.157658][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 130.158072][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 130.158481][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 130.158786][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 130.159045][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 130.159267][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 130.159551][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 130.159758][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 130.159953][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 130.160148][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 130.160344][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 130.160511][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 130.160724][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 130.160916][ 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) 
[ 130.161116][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 130.161314][ T228] ksys_write (fs/read_write.c:731) 
[ 130.161481][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 130.161692][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 130.161921][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 130.162249][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  130.162661][  T228] RIP: 0033:0x7fe6ba243b77
[ 130.162988][ 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
[  130.164139][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  130.164636][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  130.165109][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  130.165458][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  130.165736][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[  130.166024][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  138.379552][  T228] ------------[ cut here ]------------
| [ 138.379807][ 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) 
| [  138.380203][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  138.381850][  T228] Tainted: [W]=WARN
[  138.382014][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 138.382248][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 138.382678][ 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
[  138.383597][  T228] RSP: 0018:ffffc900006f7910 EFLAGS: 00010246
[  138.383869][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  138.384195][  T228] RDX: 0000000000000000 RSI: ffff888002962c98 RDI: ffff888009790b28
[  138.384674][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  138.385000][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  138.385332][  T228] R13: ffff888002962128 R14: ffff888002962008 R15: ffff888002962000
[  138.385872][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  138.386234][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  138.386598][  T228] CR2: 00007f985c1da1b4 CR3: 000000000aa9c004 CR4: 0000000000772ef0
[  138.386908][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  138.387220][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  138.387544][  T228] PKRU: 55555554
[  138.387709][  T228] Call Trace:
[  138.387892][  T228]  <TASK>
[ 138.387999][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 138.388215][ T228] ? __warn (kernel/panic.c:748) 
[ 138.388412][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 138.388623][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 138.388839][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 138.389025][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 138.389234][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 138.389482][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 138.389698][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 138.389952][ 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) 
[ 138.390151][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 138.390365][ T228] register_netdevice (net/core/dev.c:11003) 
[ 138.390577][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 138.390811][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 138.391028][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 138.391306][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 138.391583][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 138.391836][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 138.392034][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 138.392234][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 138.392514][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 138.392706][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 138.392899][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 138.393094][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 138.393289][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 138.393474][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 138.393691][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 138.393911][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 138.394134][ T228] ksys_write (fs/read_write.c:731) 
[ 138.394290][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 138.394533][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 138.394745][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  138.394997][  T228] RIP: 0033:0x7fe6ba243b77
[ 138.395227][ 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
[  138.395981][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  138.396315][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  138.396675][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  138.397010][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  138.397321][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000002
[  138.397657][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000002 R15: 00007fe6ba2fa9c0
| [  141.096144][  T228] ------------[ cut here ]------------
| [ 141.096674][ 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) 
| [  141.097139][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  141.098092][  T228] Tainted: [W]=WARN
[  141.098276][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 141.098605][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.098906][ 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
[  141.099706][  T228] RSP: 0018:ffffc900006f7520 EFLAGS: 00010246
[  141.100003][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  141.100353][  T228] RDX: 0000000000000000 RSI: ffff888002ac2c98 RDI: ffff888009790b78
[  141.100724][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  141.101071][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  141.101433][  T228] R13: ffff888002ac2128 R14: ffff888002ac2008 R15: ffff888002ac2000
[  141.101778][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  141.102181][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  141.102509][  T228] CR2: 00007fea5ef27a00 CR3: 000000000aa9c002 CR4: 0000000000772ef0
[  141.102859][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  141.103566][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  141.103915][  T228] PKRU: 55555554
[  141.104099][  T228] Call Trace:
[  141.104288][  T228]  <TASK>
[ 141.104435][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.104675][ T228] ? __warn (kernel/panic.c:748) 
[ 141.104859][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.105094][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 141.105364][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 141.105568][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 141.105810][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 141.106061][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.106307][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 141.106647][ 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) 
[ 141.106901][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 141.107148][ T228] register_netdevice (net/core/dev.c:11003) 
[ 141.107412][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 141.107667][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 141.107937][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 141.108240][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 141.108454][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 141.108808][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 141.109112][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 141.109429][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 141.109677][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 141.109967][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 141.110213][ 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)) 
[ 141.110438][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 141.110689][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 141.110932][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 141.111179][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 141.111434][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 141.111673][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 141.111967][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 141.112210][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 141.112457][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 141.112692][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 141.112927][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 141.113167][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 141.113419][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 141.113651][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 141.113896][ 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) 
[ 141.114139][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 141.114382][ T228] device_add (drivers/base/core.c:3672) 
[ 141.114653][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 141.114889][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 141.115132][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 141.115468][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 141.115772][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 141.116005][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 141.116246][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 141.116495][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 141.116738][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 141.116933][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 141.117175][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 141.117436][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 141.117688][ T228] ksys_write (fs/read_write.c:731) 
[ 141.117871][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 141.118121][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 141.118360][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  141.118680][  T228] RIP: 0033:0x7fe6ba243b77
[ 141.118922][ 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
[  141.119726][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  141.120070][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe6ba243b77
[  141.120432][  T228] RDX: 0000000000000004 RSI: 000055f6452b5330 RDI: 0000000000000001
[  141.120782][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  141.121122][  T228] R10: 00007fe6ba2b63e0 R11: 0000000000000246 R12: 0000000000000004
[  141.121479][  T228] R13: 00007fe6ba2ff760 R14: 0000000000000004 R15: 00007fe6ba2fa9c0
| [  141.264197][  T228] ------------[ cut here ]------------
| [ 141.264653][ 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) 
| [  141.265186][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  141.266086][  T228] Tainted: [W]=WARN
[  141.266291][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 141.266562][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.266827][ 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
[  141.267545][  T228] RSP: 0000:ffffc900006f7910 EFLAGS: 00010246
[  141.267862][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  141.268164][  T228] RDX: 0000000000000000 RSI: ffff888004e6ac98 RDI: ffff888009790b28
[  141.268480][  T228] RBP: ffffffff9d923440 R08: 0000000000000000 R09: fffffbfff36fd83c
[  141.268775][  T228] R10: ffffffff9b7ec1e7 R11: ffff888009790040 R12: 0000000000000000
[  141.269092][  T228] R13: ffff888004e6a128 R14: ffff888004e6a008 R15: ffff888004e6a000
[  141.269408][  T228] FS:  00007fe6ba102740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  141.269765][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  141.270022][  T228] CR2: 00007fea5f0b3ce0 CR3: 000000000aa9c002 CR4: 0000000000772ef0
[  141.270338][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  141.270670][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  141.271307][  T228] PKRU: 55555554
[  141.271497][  T228] Call Trace:
[  141.271665][  T228]  <TASK>
[ 141.271781][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.271999][ T228] ? __warn (kernel/panic.c:748) 
[ 141.272185][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.272424][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 141.272662][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 141.272849][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 141.273065][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 141.273306][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 141.273539][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 141.273822][ 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) 
[ 141.274043][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 141.274268][ T228] register_netdevice (net/core/dev.c:11003) 
[ 141.274507][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 141.274729][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 141.274966][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 141.275259][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 141.275563][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 141.275836][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 141.276073][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 141.276301][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 141.276584][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 141.276806][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 141.277027][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 141.277243][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 141.277471][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 141.277653][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 141.277879][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 141.278096][ 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) 
[ 141.278327][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 141.278561][ T228] ksys_write (fs/read_write.c:731) 
[ 141.278730][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 141.278942][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 141.279165][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 141.279382][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  141.279669][  T228] RIP: 0033:0x7fe6ba243b77
[ 141.279894][ 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
[  141.280633][  T228] RSP: 002b:00007ffe65a7d628 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  141.280951][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe6ba243b77
[  141.281265][  T228] RDX: 0000000000000002 RSI: 000055f6452b5330 RDI: 0000000000000001
[  141.281576][  T228] RBP: 000055f6452b5330 R08: 0000000000000000 R09: 00007fe6ba2b64e0
[  141.281896][  T228] R10: 00007fe6ba2b63e0 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