======================================
| 0
| xx__-> [   11.828420][  T228] ------------[ cut here ]------------
| [ 11.828913][ 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) 
| [   11.829660][  T228] Modules linked in: netdevsim
[   11.830327][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.830619][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.830955][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   11.831763][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[   11.832058][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.832411][  T228] RDX: 0000000000000000 RSI: ffff88800a04ac98 RDI: ffff88800b8c0b78
[   11.832753][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   11.833126][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   11.833476][  T228] R13: ffff88800a04a128 R14: ffff88800a04a008 R15: ffff88800a04a000
[   11.833817][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   11.834231][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.834519][  T228] CR2: 000055b03536c348 CR3: 000000000a72e003 CR4: 0000000000772ef0
[   11.834863][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.835222][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.835569][  T228] PKRU: 55555554
[   11.835745][  T228] Call Trace:
[   11.835920][  T228]  <TASK>
[ 11.836047][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.836294][ T228] ? __warn (kernel/panic.c:748) 
[ 11.836475][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.836703][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.836944][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.837134][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.837365][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.837607][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.837852][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.838163][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 11.838400][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.838638][ T228] register_netdevice (net/core/dev.c:11003) 
[ 11.838879][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.839138][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.839390][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.839701][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 11.839881][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.840193][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.840491][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 11.840782][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 11.841022][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 11.841322][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 11.841558][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 11.841757][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 11.841974][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 11.842207][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 11.842424][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 11.842652][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 11.842872][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 11.843163][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 11.843379][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 11.843592][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.843813][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.844025][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 11.844303][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 11.844529][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 11.844754][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.844983][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 11.845224][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 11.845452][ T228] device_add (drivers/base/core.c:3672) 
[ 11.845684][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 11.845905][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 11.846160][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 11.846451][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 11.846738][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.846963][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 11.847225][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.847452][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 11.847687][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 11.847876][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 11.848104][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 11.848321][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 11.848541][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 11.848760][ T228] ksys_write (fs/read_write.c:731) 
[ 11.848923][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 11.849145][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 11.849598][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.849813][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.850098][  T228] RIP: 0033:0x7f71ece43b77
[ 11.850330][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   11.851066][  T228] RSP: 002b:00007ffff0a23de8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   11.851410][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71ece43b77
[   11.851728][  T228] RDX: 0000000000000004 RSI: 0000557b0799e330 RDI: 0000000000000001
[   11.852043][  T228] RBP: 0000557b0799e330 R08: 0000000000000003 R09: 0000000000000077
[   11.852370][  T228] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000004
[   11.852683][  T228] R13: 00007f71eceff760 R14: 0000000000000004 R15: 00007f71ecefa9c0
| [   18.142629][  T228] ------------[ cut here ]------------
| [ 18.143129][ 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) 
| [   18.143574][  T228] Modules linked in: netdevsim [last unloaded: ip6_udp_tunnel]
| [   18.144348][  T228] Tainted: [W]=WARN
[   18.144571][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.144843][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.145125][ 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
[   18.145912][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[   18.146196][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   18.146517][  T228] RDX: 0000000000000000 RSI: ffff88800b632c98 RDI: ffff88800b8c0b28
[   18.146850][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   18.147185][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   18.147511][  T228] R13: ffff88800b632128 R14: ffff88800b632008 R15: ffff88800b632000
[   18.147843][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   18.148385][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.148725][  T228] CR2: 0000557b0799e330 CR3: 000000000a72e002 CR4: 0000000000772ef0
[   18.149051][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   18.149393][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   18.150067][  T228] PKRU: 55555554
[   18.150253][  T228] Call Trace:
[   18.150429][  T228]  <TASK>
[ 18.150569][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.150794][ T228] ? __warn (kernel/panic.c:748) 
[ 18.150975][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.151207][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 18.151439][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 18.151620][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 18.151839][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 18.152084][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.152317][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 18.152603][ 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) 
[ 18.152832][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 18.153083][ T228] register_netdevice (net/core/dev.c:11003) 
[ 18.153315][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 18.153546][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 18.153793][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 18.154087][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 18.154436][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 18.154719][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 18.154942][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 18.155184][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 18.155439][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 18.155646][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 18.155863][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 18.156083][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 18.156311][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 18.156494][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 18.156720][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 18.156943][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 18.157166][ T228] ksys_write (fs/read_write.c:731) 
[ 18.157329][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 18.157554][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 18.157761][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.158011][  T228] RIP: 0033:0x7f71ece43b77
[ 18.158231][ 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
[   18.158919][  T228] RSP: 002b:00007ffff0a23ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   18.159251][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[   18.159574][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[   18.159899][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[   18.160235][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[   18.160566][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [   24.704298][  T228] ------------[ cut here ]------------
| [ 24.704734][ 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) 
| [   24.705334][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   24.706160][  T228] Tainted: [W]=WARN
[   24.706327][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.706654][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.707053][ 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
[   24.707918][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[   24.708268][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   24.708631][  T228] RDX: 0000000000000000 RSI: ffff88800d3cac98 RDI: ffff88800b8c0b78
[   24.709025][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   24.709466][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   24.709847][  T228] R13: ffff88800d3ca128 R14: ffff88800d3ca008 R15: ffff88800d3ca000
[   24.710468][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   24.710932][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.711323][  T228] CR2: 000055b03532c3e0 CR3: 000000000a72e001 CR4: 0000000000772ef0
[   24.711737][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.712153][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.712538][  T228] PKRU: 55555554
[   24.712735][  T228] Call Trace:
[   24.712911][  T228]  <TASK>
[ 24.713066][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.713455][ T228] ? __warn (kernel/panic.c:748) 
[ 24.713715][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.714003][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 24.714290][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 24.714464][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 24.714683][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 24.714925][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.715166][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 24.715449][ 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) 
[ 24.715676][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 24.715912][ T228] register_netdevice (net/core/dev.c:11003) 
[ 24.716152][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 24.716383][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 24.716634][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 24.716913][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 24.717105][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 24.717393][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 24.717674][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 24.717957][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 24.718202][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 24.718494][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 24.718746][ 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)) 
[ 24.718961][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 24.719233][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 24.719492][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 24.719756][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 24.720023][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 24.720325][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 24.720637][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 24.720902][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 24.721192][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 24.721442][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 24.721710][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 24.721975][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 24.722250][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 24.722484][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 24.722735][ 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) 
[ 24.722986][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 24.723261][ T228] device_add (drivers/base/core.c:3672) 
[ 24.723609][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 24.723985][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 24.724300][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 24.724659][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 24.725066][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.725369][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 24.725638][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.725936][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 24.726190][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 24.726397][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 24.726671][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 24.726894][ 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) 
[ 24.727135][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 24.727405][ T228] ksys_write (fs/read_write.c:731) 
[ 24.727592][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 24.727943][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 24.728351][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 24.728726][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.729189][  T228] RIP: 0033:0x7f71ece43b77
[ 24.729561][ 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
[   24.730850][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   24.731446][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71ece43b77
[   24.731989][  T228] RDX: 0000000000000004 RSI: 0000557b0799e330 RDI: 0000000000000001
[   24.732550][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[   24.733130][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000004
[   24.733709][  T228] R13: 00007f71eceff760 R14: 0000000000000004 R15: 00007f71ecefa9c0
| [   24.787300][  T228] ------------[ cut here ]------------
| [ 24.787882][ 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) 
| [   24.788500][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   24.789514][  T228] Tainted: [W]=WARN
[   24.789735][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.790095][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.790454][ 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
[   24.791489][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[   24.791876][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   24.792337][  T228] RDX: 0000000000000000 RSI: ffff88800b96ac98 RDI: ffff88800b8c0b28
[   24.792773][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   24.793246][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   24.793690][  T228] R13: ffff88800b96a128 R14: ffff88800b96a008 R15: ffff88800b96a000
[   24.794462][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   24.794984][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.795392][  T228] CR2: 0000557b07972bbc CR3: 000000000a72e002 CR4: 0000000000772ef0
[   24.795835][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.796317][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.796752][  T228] PKRU: 55555554
[   24.796991][  T228] Call Trace:
[   24.797251][  T228]  <TASK>
[ 24.797429][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.797788][ T228] ? __warn (kernel/panic.c:748) 
[ 24.798044][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.798395][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 24.798731][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 24.798987][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 24.799328][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 24.799682][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 24.800017][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 24.800355][ 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) 
[ 24.800608][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 24.800878][ T228] register_netdevice (net/core/dev.c:11003) 
[ 24.801513][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 24.801844][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 24.802203][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 24.802778][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 24.803272][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 24.803690][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.804012][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 24.804373][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 24.804782][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 24.805128][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 24.805640][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 24.805973][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 24.806330][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 24.806594][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 24.806921][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 24.807457][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 24.807798][ T228] ksys_write (fs/read_write.c:731) 
[ 24.808055][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 24.808403][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 24.808918][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.809325][  T228] RIP: 0033:0x7f71ece43b77
[ 24.809660][ 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
[   24.810893][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   24.811275][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[   24.811630][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[   24.812092][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[   24.812576][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[   24.813038][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [   31.288899][  T228] ------------[ cut here ]------------
| [ 31.289318][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   31.289811][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   31.290739][  T228] Tainted: [W]=WARN
[   31.290916][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.291203][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.291476][ 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
[   31.292238][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[   31.292505][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   31.292836][  T228] RDX: 0000000000000000 RSI: ffff88800a6eac98 RDI: ffff88800b8c0b78
[   31.293175][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   31.293498][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   31.293823][  T228] R13: ffff88800a6ea128 R14: ffff88800a6ea008 R15: ffff88800a6ea000
[   31.294149][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   31.294750][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.295059][  T228] CR2: 0000557ad1d9f990 CR3: 000000000a72e003 CR4: 0000000000772ef0
[   31.295391][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.295721][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.296033][  T228] PKRU: 55555554
[   31.296206][  T228] Call Trace:
[   31.296369][  T228]  <TASK>
[ 31.296478][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.296717][ T228] ? __warn (kernel/panic.c:748) 
[ 31.296882][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.297104][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 31.297332][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 31.297535][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 31.297763][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 31.297989][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.298230][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 31.298497][ 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) 
[ 31.298726][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 31.298978][ T228] register_netdevice (net/core/dev.c:11003) 
[ 31.299210][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 31.299432][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 31.299700][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 31.299981][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 31.300166][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 31.300444][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 31.300739][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 31.301015][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 31.301253][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 31.301537][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 31.301774][ 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)) 
[ 31.301937][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 31.302168][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 31.302389][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 31.302616][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 31.302853][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 31.303122][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 31.303394][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 31.303621][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 31.303853][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 31.304067][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 31.304299][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 31.304527][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 31.304755][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 31.304965][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 31.305191][ 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) 
[ 31.305459][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 31.305685][ T228] device_add (drivers/base/core.c:3672) 
[ 31.305940][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 31.306182][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 31.306414][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 31.306705][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 31.307020][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.307252][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 31.307475][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.307719][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 31.307949][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 31.308133][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 31.308351][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 31.308563][ 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) 
[ 31.308799][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 31.309020][ T228] ksys_write (fs/read_write.c:731) 
[ 31.309196][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 31.309408][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 31.309652][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.309888][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.310161][  T228] RIP: 0033:0x7f71ece43b77
[ 31.310387][ 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
[   31.311210][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   31.311532][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71ece43b77
[   31.311879][  T228] RDX: 0000000000000004 RSI: 0000557b0799e330 RDI: 0000000000000001
[   31.312214][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[   31.312525][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000004
[   31.312870][  T228] R13: 00007f71eceff760 R14: 0000000000000004 R15: 00007f71ecefa9c0
| [   31.359660][  T228] ------------[ cut here ]------------
| [ 31.360021][ 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) 
| [   31.360499][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   31.361363][  T228] Tainted: [W]=WARN
[   31.361525][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.361783][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.362050][ 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
[   31.362793][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[   31.363085][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   31.363395][  T228] RDX: 0000000000000000 RSI: ffff88800ec12c98 RDI: ffff88800b8c0b28
[   31.363719][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   31.364026][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   31.364348][  T228] R13: ffff88800ec12128 R14: ffff88800ec12008 R15: ffff88800ec12000
[   31.364844][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   31.365227][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.365496][  T228] CR2: 00007f71ecdfb890 CR3: 000000000a72e004 CR4: 0000000000772ef0
[   31.365813][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.366146][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.366464][  T228] PKRU: 55555554
[   31.366624][  T228] Call Trace:
[   31.366782][  T228]  <TASK>
[ 31.366891][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.367116][ T228] ? __warn (kernel/panic.c:748) 
[ 31.367280][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.367495][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 31.367719][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 31.367889][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 31.368110][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 31.368337][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.368557][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 31.368820][ 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) 
[ 31.369033][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 31.369261][ T228] register_netdevice (net/core/dev.c:11003) 
[ 31.369483][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 31.369702][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 31.369932][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 31.370219][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 31.370502][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 31.370772][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.370996][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 31.371227][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 31.371496][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 31.371709][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 31.371925][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 31.372153][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 31.372371][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 31.372545][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 31.373044][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 31.373280][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 31.373502][ T228] ksys_write (fs/read_write.c:731) 
[ 31.373666][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 31.373981][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.374194][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.374443][  T228] RIP: 0033:0x7f71ece43b77
[ 31.374667][ 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
[   31.375519][  T228] RSP: 002b:00007ffff0a24fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   31.375817][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[   31.376135][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[   31.376457][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[   31.376912][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[   31.377234][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [   46.431586][  T228] ------------[ cut here ]------------
| [ 46.431991][ 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) 
| [   46.432772][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   46.434122][  T228] Tainted: [W]=WARN
[   46.434368][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.434764][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.435194][ 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
[   46.436321][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[   46.436734][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   46.437212][  T228] RDX: 0000000000000000 RSI: ffff88800b6cac98 RDI: ffff88800b8c0b28
[   46.437693][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   46.438186][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   46.438653][  T228] R13: ffff88800b6ca128 R14: ffff88800b6ca008 R15: ffff88800b6ca000
[   46.439142][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   46.439695][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.440106][  T228] CR2: 00007f71ecd87440 CR3: 000000000a72e005 CR4: 0000000000772ef0
[   46.440591][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.440973][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.441383][  T228] PKRU: 55555554
[   46.441609][  T228] Call Trace:
[   46.441863][  T228]  <TASK>
[ 46.442031][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.442380][ T228] ? __warn (kernel/panic.c:748) 
[ 46.442635][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.442990][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 46.443344][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 46.443594][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 46.443917][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 46.444287][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.444633][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 46.445059][ 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) 
[ 46.445416][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 46.445758][ T228] register_netdevice (net/core/dev.c:11003) 
[ 46.446115][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 46.446396][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 46.446660][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 46.447001][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 46.447470][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 46.447885][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 46.448224][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 46.448568][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 46.448977][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 46.449306][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 46.449627][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 46.449975][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 46.450321][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 46.450538][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 46.450781][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 46.451060][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 46.451392][ T228] ksys_write (fs/read_write.c:731) 
[ 46.451634][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 46.451968][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 46.452306][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.452692][  T228] RIP: 0033:0x7f71ece43b77
[ 46.453028][ 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
[   46.454135][  T228] RSP: 002b:00007ffff0a24fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   46.454606][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[   46.455084][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[   46.455547][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[   46.456024][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[   46.456499][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [   61.030954][  T228] ------------[ cut here ]------------
| [ 61.031345][ 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) 
| [   61.031767][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   61.032639][  T228] Tainted: [W]=WARN
[   61.032797][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 61.033102][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.033398][ 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
[   61.034177][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[   61.034474][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   61.034788][  T228] RDX: 0000000000000000 RSI: ffff888001fb2c98 RDI: ffff88800b8c0b78
[   61.035148][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   61.035480][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   61.035811][  T228] R13: ffff888001fb2128 R14: ffff888001fb2008 R15: ffff888001fb2000
[   61.036150][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   61.036547][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   61.036815][  T228] CR2: 00007f632f8d0000 CR3: 000000000a72e002 CR4: 0000000000772ef0
[   61.037370][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   61.037698][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   61.038010][  T228] PKRU: 55555554
[   61.038184][  T228] Call Trace:
[   61.038373][  T228]  <TASK>
[ 61.038488][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.038714][ T228] ? __warn (kernel/panic.c:748) 
[ 61.038906][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.039136][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 61.039355][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 61.039520][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 61.039752][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 61.039977][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.040208][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 61.040477][ 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) 
[ 61.040726][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 61.040940][ T228] register_netdevice (net/core/dev.c:11003) 
[ 61.041173][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 61.041394][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 61.041656][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 61.041935][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 61.042133][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 61.042436][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 61.042721][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 61.043031][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 61.043274][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 61.043567][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 61.043785][ 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)) 
[ 61.044019][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 61.044254][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 61.044482][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 61.044719][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 61.044933][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 61.045173][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 61.045438][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 61.045663][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 61.045875][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 61.046098][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 61.046314][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 61.046544][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 61.046761][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 61.046967][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 61.047202][ 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) 
[ 61.047433][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 61.047646][ T228] device_add (drivers/base/core.c:3672) 
[ 61.047856][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 61.048065][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 61.048297][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 61.048571][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 61.048841][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 61.049089][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 61.049311][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 61.049531][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 61.049744][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 61.049909][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 61.050133][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 61.050359][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 61.050578][ T228] ksys_write (fs/read_write.c:731) 
[ 61.050742][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 61.050962][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 61.051187][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   61.051447][  T228] RIP: 0033:0x7f71ece43b77
[ 61.051664][ 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
[   61.052393][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   61.052726][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71ece43b77
[   61.053053][  T228] RDX: 0000000000000004 RSI: 0000557b0799e330 RDI: 0000000000000001
[   61.053405][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[   61.053716][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000004
[   61.054050][  T228] R13: 00007f71eceff760 R14: 0000000000000004 R15: 00007f71ecefa9c0
| [   61.103870][  T228] ------------[ cut here ]------------
| [ 61.104236][ 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) 
| [   61.104627][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   61.105438][  T228] Tainted: [W]=WARN
[   61.105635][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 61.105876][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.106139][ 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
[   61.106827][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[   61.107082][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   61.107362][  T228] RDX: 0000000000000000 RSI: ffff88800a04ac98 RDI: ffff88800b8c0b28
[   61.107666][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   61.107955][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   61.108256][  T228] R13: ffff88800a04a128 R14: ffff88800a04a008 R15: ffff88800a04a000
[   61.108544][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   61.108874][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   61.109125][  T228] CR2: 00007ffff0a24fc8 CR3: 000000000a72e002 CR4: 0000000000772ef0
[   61.109589][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   61.109873][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   61.110164][  T228] PKRU: 55555554
[   61.110309][  T228] Call Trace:
[   61.110451][  T228]  <TASK>
[ 61.110548][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.110741][ T228] ? __warn (kernel/panic.c:748) 
[ 61.110915][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.111131][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 61.111335][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 61.111487][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 61.111679][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 61.111887][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 61.112103][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 61.112349][ 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) 
[ 61.112557][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 61.112755][ T228] register_netdevice (net/core/dev.c:11003) 
[ 61.112978][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 61.113192][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 61.113413][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 61.113671][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 61.113948][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 61.114223][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 61.114423][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 61.114620][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 61.114880][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 61.115066][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 61.115273][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 61.115472][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 61.115664][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 61.115822][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 61.116019][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 61.116237][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 61.116437][ T228] ksys_write (fs/read_write.c:731) 
[ 61.116587][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 61.116798][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 61.116996][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   61.117250][  T228] RIP: 0033:0x7f71ece43b77
[ 61.117453][ 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
[   61.118121][  T228] RSP: 002b:00007ffff0a24fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   61.118406][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[   61.118679][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[   61.118951][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[   61.119234][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[   61.119516][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [   76.100901][  T228] ------------[ cut here ]------------
| [ 76.101374][ 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) 
| [   76.102024][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   76.103445][  T228] Tainted: [W]=WARN
[   76.103737][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 76.104134][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.104542][ 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
[   76.105600][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[   76.106012][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   76.106473][  T228] RDX: 0000000000000000 RSI: ffff88800d3cac98 RDI: ffff88800b8c0b28
[   76.106942][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   76.107436][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   76.107952][  T228] R13: ffff88800d3ca128 R14: ffff88800d3ca008 R15: ffff88800d3ca000
[   76.108461][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   76.109031][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.109476][  T228] CR2: 00007f71ecd87440 CR3: 000000000a72e006 CR4: 0000000000772ef0
[   76.109993][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   76.110517][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   76.110993][  T228] PKRU: 55555554
[   76.111272][  T228] Call Trace:
[   76.111529][  T228]  <TASK>
[ 76.111712][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.112049][ T228] ? __warn (kernel/panic.c:748) 
[ 76.112311][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.112639][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 76.113017][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 76.113310][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 76.113650][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 76.114004][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 76.114383][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 76.114821][ 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) 
[ 76.115186][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 76.115545][ T228] register_netdevice (net/core/dev.c:11003) 
[ 76.115901][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 76.116313][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 76.116686][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 76.117171][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 76.117639][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 76.118115][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 76.118470][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 76.118840][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 76.119323][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 76.119698][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 76.120036][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 76.120427][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 76.120773][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 76.121091][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 76.121452][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 76.121816][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 76.122192][ T228] ksys_write (fs/read_write.c:731) 
[ 76.122473][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 76.122863][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 76.123251][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   76.123676][  T228] RIP: 0033:0x7f71ece43b77
[ 76.124040][ 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
[   76.125194][  T228] RSP: 002b:00007ffff0a24fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   76.125725][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[   76.126211][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[   76.126672][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[   76.127157][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[   76.130012][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [   91.508236][  T228] ------------[ cut here ]------------
| [ 91.508639][ 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) 
| [   91.509664][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   91.510748][  T228] Tainted: [W]=WARN
[   91.510927][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 91.511295][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.511625][ 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
[   91.512515][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[   91.512869][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   91.513272][  T228] RDX: 0000000000000000 RSI: ffff88800d04ac98 RDI: ffff88800b8c0b78
[   91.513633][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   91.513972][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   91.514326][  T228] R13: ffff88800d04a128 R14: ffff88800d04a008 R15: ffff88800d04a000
[   91.514689][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   91.515104][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   91.515479][  T228] CR2: 00007f71ecd87440 CR3: 000000000a72e006 CR4: 0000000000772ef0
[   91.515819][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   91.516192][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   91.516565][  T228] PKRU: 55555554
[   91.516783][  T228] Call Trace:
[   91.517262][  T228]  <TASK>
[ 91.517402][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.517682][ T228] ? __warn (kernel/panic.c:748) 
[ 91.517897][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.518158][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 91.518444][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 91.518648][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 91.518909][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 91.519234][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.519539][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 91.519836][ 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) 
[ 91.520182][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 91.520503][ T228] register_netdevice (net/core/dev.c:11003) 
[ 91.520747][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 91.520998][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 91.521280][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 91.521597][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 91.521811][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 91.522181][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 91.522647][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 91.523062][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 91.523480][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 91.523950][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 91.524353][ 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)) 
[ 91.524636][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 91.525005][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 91.525404][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 91.525770][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 91.526152][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 91.526546][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 91.526982][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 91.527363][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 91.527735][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 91.528203][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 91.528587][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 91.528812][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 91.529148][ 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) 
[ 91.529510][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 91.529849][ T228] device_add (drivers/base/core.c:3672) 
[ 91.530245][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 91.530601][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 91.530974][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 91.531456][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 91.531944][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 91.532201][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 91.532484][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 91.532719][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 91.532937][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 91.533138][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 91.533388][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 91.533632][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 91.533854][ T228] ksys_write (fs/read_write.c:731) 
[ 91.534020][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 91.534275][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 91.534496][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   91.534759][  T228] RIP: 0033:0x7f71ece43b77
[ 91.534974][ 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
[   91.535737][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   91.536061][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71ece43b77
[   91.536406][  T228] RDX: 0000000000000004 RSI: 0000557b0799e330 RDI: 0000000000000001
[   91.536759][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[   91.537063][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000004
[   91.537386][  T228] R13: 00007f71eceff760 R14: 0000000000000004 R15: 00007f71ecefa9c0
| [   91.586565][  T228] ------------[ cut here ]------------
| [ 91.586899][ 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) 
| [   91.587309][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   91.588165][  T228] Tainted: [W]=WARN
[   91.588349][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 91.588688][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.589093][ 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
[   91.590148][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[   91.590545][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   91.590936][  T228] RDX: 0000000000000000 RSI: ffff88800b96ac98 RDI: ffff88800b8c0b28
[   91.591389][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[   91.591800][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[   91.592285][  T228] R13: ffff88800b96a128 R14: ffff88800b96a008 R15: ffff88800b96a000
[   91.592688][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   91.593484][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   91.593817][  T228] CR2: 00007f0fb1668000 CR3: 000000000a72e001 CR4: 0000000000772ef0
[   91.594244][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   91.594684][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   91.595148][  T228] PKRU: 55555554
[   91.595377][  T228] Call Trace:
[   91.595592][  T228]  <TASK>
[ 91.595750][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.596088][ T228] ? __warn (kernel/panic.c:748) 
[ 91.596327][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.596653][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 91.597007][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 91.597261][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 91.597580][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 91.597928][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.598288][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 91.598706][ 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) 
[ 91.599061][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 91.599420][ T228] register_netdevice (net/core/dev.c:11003) 
[ 91.599760][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 91.600063][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 91.600413][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 91.600804][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 91.601214][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 91.601583][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 91.601884][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 91.602174][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 91.602445][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 91.602661][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 91.602883][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 91.603140][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 91.603350][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 91.603502][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 91.603694][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 91.603891][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 91.604136][ T228] ksys_write (fs/read_write.c:731) 
[ 91.604338][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 91.604657][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 91.604998][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   91.605423][  T228] RIP: 0033:0x7f71ece43b77
[ 91.605723][ T228] Code: Unable to access opcode bytes at 0x7f71ece43b4d.

Code starting with the faulting instruction
===========================================
[   91.606163][  T228] RSP: 002b:00007ffff0a268a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   91.606597][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[   91.607022][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[   91.607474][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[   91.607886][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[   91.608323][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  100.970827][  T228] ------------[ cut here ]------------
| [ 100.971255][ 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) 
| [  100.971849][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  100.973043][  T228] Tainted: [W]=WARN
[  100.973256][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 100.973613][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.973972][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  100.975174][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  100.975634][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  100.976156][  T228] RDX: 0000000000000000 RSI: ffff88800a6eac98 RDI: ffff88800b8c0b28
[  100.976686][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  100.977234][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  100.977770][  T228] R13: ffff88800a6ea128 R14: ffff88800a6ea008 R15: ffff88800a6ea000
[  100.978333][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  100.978916][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.979373][  T228] CR2: 00007f71ecd87440 CR3: 000000000a72e006 CR4: 0000000000772ef0
[  100.979924][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  100.980477][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  100.980835][  T228] PKRU: 55555554
[  100.981031][  T228] Call Trace:
[  100.981246][  T228]  <TASK>
[ 100.981380][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.981628][ T228] ? __warn (kernel/panic.c:748) 
[ 100.981822][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.982062][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 100.982340][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 100.982525][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 100.982852][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 100.983124][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.983540][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 100.983967][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 100.984355][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 100.984693][ T228] register_netdevice (net/core/dev.c:11003) 
[ 100.985032][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 100.985417][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 100.985817][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 100.986272][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 100.986767][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 100.987225][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 100.987575][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 100.987945][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 100.988426][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 100.988788][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 100.989149][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 100.989533][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 100.989889][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 100.990199][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 100.990583][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 100.990938][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 100.991282][ T228] ksys_write (fs/read_write.c:731) 
[ 100.991551][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 100.991911][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 100.992239][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.992707][  T228] RIP: 0033:0x7f71ece43b77
[ 100.993063][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  100.994210][  T228] RSP: 002b:00007ffff0a268a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  100.994704][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  100.995228][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  100.995728][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  100.996241][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  100.996709][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  109.522248][  T228] ------------[ cut here ]------------
| [ 109.522769][ 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) 
| [  109.523293][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  109.524264][  T228] Tainted: [W]=WARN
[  109.524518][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 109.524965][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.525286][ 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
[  109.526369][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[  109.526864][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  109.527538][  T228] RDX: 0000000000000000 RSI: ffff88800ec12c98 RDI: ffff88800b8c0b78
[  109.528159][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  109.528736][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  109.529336][  T228] R13: ffff88800ec12128 R14: ffff88800ec12008 R15: ffff88800ec12000
[  109.529950][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  109.530615][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  109.531178][  T228] CR2: 00007f88dad47000 CR3: 000000000a72e001 CR4: 0000000000772ef0
[  109.532189][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  109.532774][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  109.533364][  T228] PKRU: 55555554
[  109.533662][  T228] Call Trace:
[  109.533991][  T228]  <TASK>
[ 109.534239][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.534645][ T228] ? __warn (kernel/panic.c:748) 
[ 109.534936][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.535348][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 109.535736][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 109.536053][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 109.536469][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 109.536867][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.537255][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 109.537736][ 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) 
[ 109.538154][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 109.538563][ T228] register_netdevice (net/core/dev.c:11003) 
[ 109.538877][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 109.539154][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 109.539457][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 109.539797][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 109.540068][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 109.540557][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 109.541025][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 109.541530][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 109.541929][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 109.542439][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 109.542864][ 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)) 
[ 109.543178][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 109.543674][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 109.544097][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 109.544526][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 109.544912][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 109.545332][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 109.545777][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 109.546185][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 109.546469][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 109.546723][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 109.547049][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 109.547439][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 109.547692][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 109.547950][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 109.548202][ 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) 
[ 109.548502][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 109.548747][ T228] device_add (drivers/base/core.c:3672) 
[ 109.548991][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 109.549235][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 109.549500][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 109.549816][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 109.550157][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 109.550424][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 109.550668][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 109.550913][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 109.551179][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 109.551390][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 109.551643][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 109.551903][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 109.552183][ T228] ksys_write (fs/read_write.c:731) 
[ 109.552375][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 109.552687][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 109.552946][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  109.553264][  T228] RIP: 0033:0x7f71ece43b77
[ 109.553539][ 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
[  109.554372][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  109.554769][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71ece43b77
[  109.555137][  T228] RDX: 0000000000000004 RSI: 0000557b0799e330 RDI: 0000000000000001
[  109.555507][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  109.555869][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000004
[  109.556234][  T228] R13: 00007f71eceff760 R14: 0000000000000004 R15: 00007f71ecefa9c0
| [  109.600043][  T228] ------------[ cut here ]------------
| [ 109.600505][ 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) 
| [  109.600944][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  109.602260][  T228] Tainted: [W]=WARN
[  109.602445][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 109.602757][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.603047][ 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
[  109.603868][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  109.604156][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  109.604474][  T228] RDX: 0000000000000000 RSI: ffff88800b6cac98 RDI: ffff88800b8c0b28
[  109.604827][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  109.605285][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  109.605642][  T228] R13: ffff88800b6ca128 R14: ffff88800b6ca008 R15: ffff88800b6ca000
[  109.605981][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  109.606391][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  109.606662][  T228] CR2: 00007ffff0a24fd8 CR3: 000000000a72e001 CR4: 0000000000772ef0
[  109.606989][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  109.607325][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  109.607667][  T228] PKRU: 55555554
[  109.607848][  T228] Call Trace:
[  109.608022][  T228]  <TASK>
[ 109.608158][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.608399][ T228] ? __warn (kernel/panic.c:748) 
[ 109.608589][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.608822][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 109.609364][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 109.609551][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 109.609780][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 109.610023][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 109.610271][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 109.610591][ 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) 
[ 109.610831][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 109.611094][ T228] register_netdevice (net/core/dev.c:11003) 
[ 109.611339][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 109.611601][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 109.611855][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 109.612177][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 109.612482][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 109.612793][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 109.613015][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 109.613263][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 109.613545][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 109.613766][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 109.613979][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 109.614227][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 109.614456][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 109.614632][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 109.614848][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 109.615085][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 109.615332][ T228] ksys_write (fs/read_write.c:731) 
[ 109.615507][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 109.615738][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 109.615958][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  109.616239][  T228] RIP: 0033:0x7f71ece43b77
[ 109.616463][ 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
[  109.617231][  T228] RSP: 002b:00007ffff0a24c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  109.617579][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  109.617924][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  109.618273][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  109.618616][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  109.618945][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  112.724779][  T228] ------------[ cut here ]------------
| [ 112.725068][ 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) 
| [  112.725935][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  112.726808][  T228] Tainted: [W]=WARN
[  112.726967][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 112.727236][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 112.727512][ 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
[  112.728237][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  112.728507][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  112.728823][  T228] RDX: 0000000000000000 RSI: ffff888001fb2c98 RDI: ffff88800b8c0b28
[  112.729141][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  112.729458][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  112.729756][  T228] R13: ffff888001fb2128 R14: ffff888001fb2008 R15: ffff888001fb2000
[  112.730064][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  112.730439][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  112.730700][  T228] CR2: 0000557b0797d1e8 CR3: 000000000a72e001 CR4: 0000000000772ef0
[  112.731000][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  112.731333][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  112.731637][  T228] PKRU: 55555554
[  112.731791][  T228] Call Trace:
[  112.731943][  T228]  <TASK>
[ 112.732049][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 112.732273][ T228] ? __warn (kernel/panic.c:748) 
[ 112.732437][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 112.732663][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 112.732877][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 112.733035][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 112.733255][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 112.733515][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 112.733731][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 112.733987][ 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) 
[ 112.734216][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 112.734446][ T228] register_netdevice (net/core/dev.c:11003) 
[ 112.734658][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 112.734875][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 112.735116][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 112.735391][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 112.735670][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 112.735933][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 112.736152][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 112.736379][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 112.736643][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 112.736846][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 112.737054][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 112.737288][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 112.737541][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 112.737713][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 112.737923][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 112.738156][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 112.738390][ T228] ksys_write (fs/read_write.c:731) 
[ 112.738560][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 112.738776][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 112.738982][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  112.739244][  T228] RIP: 0033:0x7f71ece43b77
[ 112.739468][ 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
[  112.740200][  T228] RSP: 002b:00007ffff0a24c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  112.740527][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  112.740830][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  112.741153][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  112.741576][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  112.741908][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  115.536694][  T228] ------------[ cut here ]------------
| [ 115.537145][ 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) 
| [  115.537588][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  115.538686][  T228] Tainted: [W]=WARN
[  115.538906][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 115.539230][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.539522][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  115.540304][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[  115.540600][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  115.540926][  T228] RDX: 0000000000000000 RSI: ffff88800a04ac98 RDI: ffff88800b8c0b78
[  115.541270][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  115.541607][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  115.541973][  T228] R13: ffff88800a04a128 R14: ffff88800a04a008 R15: ffff88800a04a000
[  115.542310][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  115.542699][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  115.542986][  T228] CR2: 0000557b07975000 CR3: 000000000a72e004 CR4: 0000000000772ef0
[  115.543325][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  115.543655][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  115.543980][  T228] PKRU: 55555554
[  115.544175][  T228] Call Trace:
[  115.544356][  T228]  <TASK>
[ 115.544483][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.544719][ T228] ? __warn (kernel/panic.c:748) 
[ 115.544912][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.545153][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 115.545398][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 115.545590][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 115.545834][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 115.546108][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.546365][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 115.546681][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 115.546928][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 115.547189][ T228] register_netdevice (net/core/dev.c:11003) 
[ 115.547433][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 115.547687][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 115.547947][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 115.548268][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 115.548458][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 115.548769][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 115.549091][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 115.549398][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 115.549648][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 115.549947][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 115.550213][ 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)) 
[ 115.550403][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 115.550643][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 115.550878][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 115.551134][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 115.551375][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 115.551626][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 115.551916][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 115.552172][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 115.552477][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 115.552737][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 115.552976][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 115.553239][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 115.553480][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 115.553738][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 115.553987][ 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) 
[ 115.554259][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 115.554504][ T228] device_add (drivers/base/core.c:3672) 
[ 115.554748][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 115.554977][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 115.555228][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 115.555539][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 115.555837][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 115.556101][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 115.556338][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 115.556565][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 115.556810][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 115.557001][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 115.557260][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 115.557519][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 115.557774][ T228] ksys_write (fs/read_write.c:731) 
[ 115.557965][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 115.558234][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 115.558481][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  115.558774][  T228] RIP: 0033:0x7f71ece43b77
[ 115.559023][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  115.559834][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  115.560202][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71ece43b77
[  115.560548][  T228] RDX: 0000000000000004 RSI: 0000557b0799e330 RDI: 0000000000000001
[  115.560903][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  115.561265][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000004
[  115.561613][  T228] R13: 00007f71eceff760 R14: 0000000000000004 R15: 00007f71ecefa9c0
| [  115.604446][  T228] ------------[ cut here ]------------
| [ 115.604817][ 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) 
| [  115.605240][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  115.606096][  T228] Tainted: [W]=WARN
[  115.606255][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 115.606539][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.606799][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  115.608089][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  115.608354][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  115.608642][  T228] RDX: 0000000000000000 RSI: ffff88800d3cac98 RDI: ffff88800b8c0b28
[  115.608929][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  115.609229][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  115.609553][  T228] R13: ffff88800d3ca128 R14: ffff88800d3ca008 R15: ffff88800d3ca000
[  115.609843][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  115.610189][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  115.610437][  T228] CR2: 0000557b07975000 CR3: 000000000a72e004 CR4: 0000000000772ef0
[  115.610742][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  115.611037][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  115.611336][  T228] PKRU: 55555554
[  115.611490][  T228] Call Trace:
[  115.611649][  T228]  <TASK>
[ 115.611762][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.611973][ T228] ? __warn (kernel/panic.c:748) 
[ 115.612174][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.612380][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 115.612623][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 115.612783][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 115.612989][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 115.613220][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 115.613432][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 115.613693][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 115.613906][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 115.614138][ T228] register_netdevice (net/core/dev.c:11003) 
[ 115.614348][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 115.614839][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 115.615099][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 115.615383][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 115.615656][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 115.615936][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 115.616154][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 115.616366][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 115.616628][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 115.616833][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 115.617039][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 115.617254][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 115.617461][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 115.617626][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 115.617831][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 115.618052][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 115.618273][ T228] ksys_write (fs/read_write.c:731) 
[ 115.618447][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 115.618665][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 115.618885][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  115.619177][  T228] RIP: 0033:0x7f71ece43b77
[ 115.619429][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  115.620135][  T228] RSP: 002b:00007ffff0a250e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  115.620450][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  115.620755][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  115.621050][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  115.621361][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  115.621655][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  118.473050][  T228] ------------[ cut here ]------------
| [ 118.473333][ 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) 
| [  118.473756][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  118.474662][  T228] Tainted: [W]=WARN
[  118.474821][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 118.475090][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.475359][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  118.476082][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  118.476347][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  118.476705][  T228] RDX: 0000000000000000 RSI: ffff88800d04ac98 RDI: ffff88800b8c0b28
[  118.477047][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  118.477517][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  118.477840][  T228] R13: ffff88800d04a128 R14: ffff88800d04a008 R15: ffff88800d04a000
[  118.478190][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  118.478549][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  118.478810][  T228] CR2: 00007f71ecd87440 CR3: 000000000a72e001 CR4: 0000000000772ef0
[  118.479128][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  118.479448][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  118.479751][  T228] PKRU: 55555554
[  118.479907][  T228] Call Trace:
[  118.480064][  T228]  <TASK>
[ 118.480180][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.480391][ T228] ? __warn (kernel/panic.c:748) 
[ 118.480552][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.480761][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 118.480983][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 118.481148][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 118.481352][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 118.481573][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 118.481788][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 118.482102][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 118.482322][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 118.482554][ T228] register_netdevice (net/core/dev.c:11003) 
[ 118.482763][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 118.482986][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 118.483220][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 118.483484][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 118.483765][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 118.484047][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.484281][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 118.484510][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 118.484794][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 118.485002][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 118.485232][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 118.485452][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 118.485682][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 118.485857][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 118.486103][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 118.486337][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 118.486562][ T228] ksys_write (fs/read_write.c:731) 
[ 118.486731][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 118.486957][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 118.487192][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  118.487457][  T228] RIP: 0033:0x7f71ece43b77
[ 118.487669][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  118.488399][  T228] RSP: 002b:00007ffff0a250e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  118.488712][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  118.489016][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  118.489328][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  118.489644][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  118.489959][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  120.875271][  T228] ------------[ cut here ]------------
| [ 120.875704][ 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) 
| [  120.876185][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  120.877134][  T228] Tainted: [W]=WARN
[  120.877311][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 120.877599][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 120.877890][ 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
[  120.878703][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[  120.879004][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  120.879343][  T228] RDX: 0000000000000000 RSI: ffff88800b96ac98 RDI: ffff88800b8c0b78
[  120.879700][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  120.880055][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  120.880423][  T228] R13: ffff88800b96a128 R14: ffff88800b96a008 R15: ffff88800b96a000
[  120.880759][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  120.881156][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  120.881450][  T228] CR2: 00007f03fad30000 CR3: 000000000a72e004 CR4: 0000000000772ef0
[  120.881964][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  120.882329][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  120.882678][  T228] PKRU: 55555554
[  120.882850][  T228] Call Trace:
[  120.883019][  T228]  <TASK>
[ 120.883157][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 120.883390][ T228] ? __warn (kernel/panic.c:748) 
[ 120.883582][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 120.883812][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 120.884064][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 120.884252][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 120.884480][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 120.884719][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 120.884959][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 120.885270][ 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) 
[ 120.885506][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 120.885743][ T228] register_netdevice (net/core/dev.c:11003) 
[ 120.885977][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 120.886235][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 120.886498][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 120.886798][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 120.886972][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 120.887328][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 120.887621][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 120.887926][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 120.888173][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 120.888466][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 120.888694][ 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)) 
[ 120.888851][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 120.889082][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 120.889339][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 120.889577][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 120.889834][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 120.890045][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 120.890319][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 120.890555][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 120.890794][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 120.891004][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 120.891291][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 120.891523][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 120.891766][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 120.892010][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 120.892251][ 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) 
[ 120.892529][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 120.892759][ T228] device_add (drivers/base/core.c:3672) 
[ 120.893018][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 120.893261][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 120.893520][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 120.893829][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 120.894138][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 120.894413][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 120.894650][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 120.894923][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 120.895198][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 120.895380][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 120.895629][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 120.895861][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 120.896127][ T228] ksys_write (fs/read_write.c:731) 
[ 120.896303][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 120.896536][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 120.896762][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  120.897034][  T228] RIP: 0033:0x7f71ece43b77
[ 120.897288][ 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
[  120.898110][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  120.898446][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71ece43b77
[  120.898819][  T228] RDX: 0000000000000004 RSI: 0000557b0799e330 RDI: 0000000000000001
[  120.899189][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  120.899541][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000004
[  120.899905][  T228] R13: 00007f71eceff760 R14: 0000000000000004 R15: 00007f71ecefa9c0
| [  120.943965][  T228] ------------[ cut here ]------------
| [ 120.944412][ 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) 
| [  120.944832][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  120.945713][  T228] Tainted: [W]=WARN
[  120.945878][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 120.946195][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 120.946466][ 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
[  120.947297][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  120.947568][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  120.947872][  T228] RDX: 0000000000000000 RSI: ffff88800a6eac98 RDI: ffff88800b8c0b28
[  120.948385][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  120.948705][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  120.949087][  T228] R13: ffff88800a6ea128 R14: ffff88800a6ea008 R15: ffff88800a6ea000
[  120.949451][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  120.949817][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  120.950084][  T228] CR2: 00007ffff0a24fd8 CR3: 000000000a72e005 CR4: 0000000000772ef0
[  120.950399][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  120.950802][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  120.951288][  T228] PKRU: 55555554
[  120.951484][  T228] Call Trace:
[  120.951671][  T228]  <TASK>
[ 120.951781][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 120.952045][ T228] ? __warn (kernel/panic.c:748) 
[ 120.952231][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 120.952441][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 120.952675][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 120.952846][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 120.953098][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 120.953361][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 120.953637][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 120.954024][ 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) 
[ 120.954379][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 120.954722][ T228] register_netdevice (net/core/dev.c:11003) 
[ 120.955067][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 120.955450][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 120.955812][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 120.956281][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 120.956744][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 120.957196][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 120.957532][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 120.957872][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 120.958177][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 120.958439][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 120.958705][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 120.958964][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 120.959280][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 120.959550][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 120.959889][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 120.960260][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 120.960534][ T228] ksys_write (fs/read_write.c:731) 
[ 120.960755][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 120.961045][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 120.961370][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  120.961776][  T228] RIP: 0033:0x7f71ece43b77
[ 120.962061][ 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
[  120.962815][  T228] RSP: 002b:00007ffff0a24c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  120.963139][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  120.963446][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  120.963817][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  120.964145][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  120.964453][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  123.445727][  T228] ------------[ cut here ]------------
| [ 123.447335][ 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) 
| [  123.447927][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  123.449231][  T228] Tainted: [W]=WARN
[  123.449638][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 123.450158][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 123.450675][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  123.451554][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  123.451970][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  123.452320][  T228] RDX: 0000000000000000 RSI: ffff88800ec12c98 RDI: ffff88800b8c0b28
[  123.452655][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  123.453062][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  123.453442][  T228] R13: ffff88800ec12128 R14: ffff88800ec12008 R15: ffff88800ec12000
[  123.453795][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  123.454201][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  123.454482][  T228] CR2: 0000557b0797d1e8 CR3: 000000000a72e004 CR4: 0000000000772ef0
[  123.454802][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  123.455153][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  123.455470][  T228] PKRU: 55555554
[  123.455648][  T228] Call Trace:
[  123.455824][  T228]  <TASK>
[ 123.455955][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 123.456188][ T228] ? __warn (kernel/panic.c:748) 
[ 123.456367][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 123.456593][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 123.456825][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 123.457038][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 123.457277][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 123.457525][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 123.457754][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 123.458132][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 123.458448][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 123.458690][ T228] register_netdevice (net/core/dev.c:11003) 
[ 123.458929][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 123.459252][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 123.459499][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 123.459814][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 123.460163][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 123.460515][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 123.460752][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 123.461092][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 123.461369][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 123.461657][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 123.461971][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 123.462224][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 123.462457][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 123.462650][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 123.462946][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 123.463218][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 123.463491][ T228] ksys_write (fs/read_write.c:731) 
[ 123.463667][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 123.463911][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 123.464161][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  123.464488][  T228] RIP: 0033:0x7f71ece43b77
[ 123.464740][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  123.465538][  T228] RSP: 002b:00007ffff0a24c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  123.465903][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  123.466260][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  123.466578][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  123.466900][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  123.467290][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  125.864262][  T228] ------------[ cut here ]------------
| [ 125.864680][ 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) 
| [  125.865181][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  125.866398][  T228] Tainted: [W]=WARN
[  125.866597][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 125.866920][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.867268][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  125.868173][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[  125.868482][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  125.868848][  T228] RDX: 0000000000000000 RSI: ffff88800b6cac98 RDI: ffff88800b8c0b78
[  125.869238][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  125.869619][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  125.869997][  T228] R13: ffff88800b6ca128 R14: ffff88800b6ca008 R15: ffff88800b6ca000
[  125.870383][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  125.870811][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.871215][  T228] CR2: 00007fbfd948a1b4 CR3: 000000000a72e002 CR4: 0000000000772ef0
[  125.871585][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  125.871913][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  125.872264][  T228] PKRU: 55555554
[  125.872434][  T228] Call Trace:
[  125.872625][  T228]  <TASK>
[ 125.872747][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.872974][ T228] ? __warn (kernel/panic.c:748) 
[ 125.873160][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.873382][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 125.873616][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 125.873785][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 125.874004][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 125.874249][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.874483][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 125.874819][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 125.875083][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 125.875341][ T228] register_netdevice (net/core/dev.c:11003) 
[ 125.875568][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 125.875799][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 125.876042][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 125.876341][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 125.876522][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 125.876815][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 125.877109][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 125.877396][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 125.877632][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 125.877921][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 125.878159][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 125.878333][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 125.878564][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 125.878799][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 125.879029][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 125.879293][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 125.879522][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 125.879851][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 125.880171][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 125.880414][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 125.880657][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 125.880897][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 125.881152][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 125.881396][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 125.881635][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 125.881886][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 125.882153][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 125.882381][ T228] device_add (drivers/base/core.c:3672) 
[ 125.882623][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 125.882860][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 125.883108][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 125.883444][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 125.883754][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 125.884006][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 125.884288][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 125.884534][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 125.884823][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 125.885032][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 125.885302][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 125.885541][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 125.885791][ T228] ksys_write (fs/read_write.c:731) 
[ 125.885961][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 125.886218][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 125.886442][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  125.886714][  T228] RIP: 0033:0x7f71ece43b77
[ 125.886943][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[  125.887753][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  125.888118][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71ece43b77
[  125.888453][  T228] RDX: 0000000000000004 RSI: 0000557b0799e330 RDI: 0000000000000001
[  125.888789][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  125.889140][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000004
[  125.889465][  T228] R13: 00007f71eceff760 R14: 0000000000000004 R15: 00007f71ecefa9c0
| [  125.946508][  T228] ------------[ cut here ]------------
| [ 125.947034][ 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) 
| [  125.948389][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  125.949730][  T228] Tainted: [W]=WARN
[  125.949987][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 125.950475][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.950907][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  125.952033][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  125.952483][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  125.952972][  T228] RDX: 0000000000000000 RSI: ffff888001fb2c98 RDI: ffff88800b8c0b28
[  125.953469][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  125.953970][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  125.954516][  T228] R13: ffff888001fb2128 R14: ffff888001fb2008 R15: ffff888001fb2000
[  125.955017][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  125.955584][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  125.956005][  T228] CR2: 00007fbfd948a1b4 CR3: 000000000a72e002 CR4: 0000000000772ef0
[  125.956525][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  125.957029][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  125.957551][  T228] PKRU: 55555554
[  125.957811][  T228] Call Trace:
[  125.958088][  T228]  <TASK>
[ 125.958265][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.958605][ T228] ? __warn (kernel/panic.c:748) 
[ 125.958874][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.959573][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 125.959929][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 125.960197][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 125.960525][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 125.960886][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 125.961247][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 125.961661][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 125.961994][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 125.962354][ T228] register_netdevice (net/core/dev.c:11003) 
[ 125.962709][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 125.963116][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 125.963481][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 125.963923][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 125.964412][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 125.964890][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 125.965244][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 125.965588][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 125.966033][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 125.966403][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 125.966745][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 125.967115][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 125.967459][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 125.967729][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 125.968103][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 125.968465][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 125.968827][ T228] ksys_write (fs/read_write.c:731) 
[ 125.969120][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 125.969476][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 125.969820][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  125.970272][  T228] RIP: 0033:0x7f71ece43b77
[ 125.970648][ T228] Code: Unable to access opcode bytes at 0x7f71ece43b4d.

Code starting with the faulting instruction
===========================================
[  125.971122][  T228] RSP: 002b:00007ffff0a24e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  125.971667][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  125.972208][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  125.972752][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  125.973293][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  125.973829][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  128.336469][  T228] ------------[ cut here ]------------
| [ 128.336842][ 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) 
| [  128.338500][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  128.339819][  T228] Tainted: [W]=WARN
[  128.340206][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 128.340618][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 128.341059][ 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
[  128.341858][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  128.342181][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  128.342535][  T228] RDX: 0000000000000000 RSI: ffff88800a04ac98 RDI: ffff88800b8c0b28
[  128.342875][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  128.343220][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  128.343563][  T228] R13: ffff88800a04a128 R14: ffff88800a04a008 R15: ffff88800a04a000
[  128.343904][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  128.344314][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  128.344600][  T228] CR2: 0000557b0797d1e8 CR3: 000000000a72e001 CR4: 0000000000772ef0
[  128.344935][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  128.345291][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  128.345624][  T228] PKRU: 55555554
[  128.345797][  T228] Call Trace:
[  128.345975][  T228]  <TASK>
[ 128.346114][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 128.346374][ T228] ? __warn (kernel/panic.c:748) 
[ 128.346556][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 128.346786][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 128.347023][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 128.347216][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 128.347454][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 128.347700][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 128.347950][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 128.348270][ 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) 
[ 128.348508][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 128.348742][ T228] register_netdevice (net/core/dev.c:11003) 
[ 128.348983][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 128.349236][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 128.349517][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 128.349825][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 128.350149][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 128.350444][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 128.350713][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 128.350954][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 128.351281][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 128.351503][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 128.351762][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 128.352035][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 128.352311][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 128.352510][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 128.352781][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 128.353043][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 128.353301][ T228] ksys_write (fs/read_write.c:731) 
[ 128.353479][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 128.353752][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 128.353985][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  128.354268][  T228] RIP: 0033:0x7f71ece43b77
[ 128.354530][ 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
[  128.355318][  T228] RSP: 002b:00007ffff0a24e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  128.355639][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  128.355966][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  128.356312][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  128.356633][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  128.356978][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  130.511316][  T228] ------------[ cut here ]------------
| [ 130.511748][ 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) 
| [  130.512234][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  130.513601][  T228] Tainted: [W]=WARN
[  130.513778][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 130.514060][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.514386][ 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
[  130.515196][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[  130.515477][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  130.515814][  T228] RDX: 0000000000000000 RSI: ffff88800d04ac98 RDI: ffff88800b8c0b78
[  130.516171][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  130.516510][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  130.516855][  T228] R13: ffff88800d04a128 R14: ffff88800d04a008 R15: ffff88800d04a000
[  130.517209][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  130.517624][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  130.517909][  T228] CR2: 00007ffc29743fb8 CR3: 000000000a72e001 CR4: 0000000000772ef0
[  130.518270][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  130.518618][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  130.518971][  T228] PKRU: 55555554
[  130.519167][  T228] Call Trace:
[  130.519348][  T228]  <TASK>
[ 130.519465][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.519698][ T228] ? __warn (kernel/panic.c:748) 
[ 130.519908][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.520160][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 130.520410][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 130.520593][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 130.520831][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 130.521101][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.521349][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 130.521643][ 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) 
[ 130.521883][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 130.522132][ T228] register_netdevice (net/core/dev.c:11003) 
[ 130.522385][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 130.522642][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 130.522893][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 130.523236][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 130.523416][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 130.523806][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 130.524126][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 130.524420][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 130.524690][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 130.524986][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 130.525250][ 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)) 
[ 130.525424][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 130.525697][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 130.525933][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 130.526176][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 130.526436][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 130.526662][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 130.526940][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 130.527180][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 130.527427][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 130.527654][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 130.527908][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 130.528187][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 130.528420][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 130.528659][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 130.528888][ 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) 
[ 130.529181][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 130.529412][ T228] device_add (drivers/base/core.c:3672) 
[ 130.529669][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 130.529897][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 130.530171][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 130.530466][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 130.530786][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 130.531024][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 130.531274][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 130.531524][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 130.531755][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 130.531969][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 130.532212][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 130.532493][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 130.532737][ T228] ksys_write (fs/read_write.c:731) 
[ 130.532913][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 130.533174][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 130.533425][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  130.533706][  T228] RIP: 0033:0x7f71ece43b77
[ 130.533939][ 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
[  130.534771][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  130.535126][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71ece43b77
[  130.535465][  T228] RDX: 0000000000000004 RSI: 0000557b0799e330 RDI: 0000000000000001
[  130.535812][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  130.536165][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000004
[  130.536499][  T228] R13: 00007f71eceff760 R14: 0000000000000004 R15: 00007f71ecefa9c0
| [  130.643165][  T228] ------------[ cut here ]------------
| [ 130.643582][ 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) 
| [  130.644111][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  130.645134][  T228] Tainted: [W]=WARN
[  130.645334][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 130.645668][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.645996][ 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
[  130.646884][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  130.647211][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  130.647565][  T228] RDX: 0000000000000000 RSI: ffff88800d3cac98 RDI: ffff88800b8c0b28
[  130.647928][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  130.648298][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  130.648667][  T228] R13: ffff88800d3ca128 R14: ffff88800d3ca008 R15: ffff88800d3ca000
[  130.649021][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  130.649478][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  130.650004][  T228] CR2: 0000557b0799e330 CR3: 000000000a72e002 CR4: 0000000000772ef0
[  130.650378][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  130.650727][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  130.651109][  T228] PKRU: 55555554
[  130.651308][  T228] Call Trace:
[  130.651505][  T228]  <TASK>
[ 130.651640][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.651887][ T228] ? __warn (kernel/panic.c:748) 
[ 130.652103][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.652362][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 130.652635][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 130.652842][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 130.653118][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 130.653391][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 130.653640][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 130.653943][ 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) 
[ 130.654224][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 130.654475][ T228] register_netdevice (net/core/dev.c:11003) 
[ 130.654709][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 130.654959][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 130.655304][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 130.655629][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 130.655939][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 130.656233][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 130.656455][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 130.656704][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 130.656999][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 130.657248][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 130.657476][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 130.657713][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 130.657939][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 130.658144][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 130.658389][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 130.658606][ 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) 
[ 130.658841][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 130.659086][ T228] ksys_write (fs/read_write.c:731) 
[ 130.659264][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 130.659487][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 130.659723][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 130.659958][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  130.660247][  T228] RIP: 0033:0x7f71ece43b77
[ 130.660527][ 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
[  130.661381][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  130.661752][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  130.662126][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  130.662481][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  130.662824][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  130.663181][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  131.357815][  T228] ------------[ cut here ]------------
| [ 131.358135][ 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) 
| [  131.358615][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  131.359591][  T228] Tainted: [W]=WARN
[  131.359767][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 131.360061][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 131.360387][ 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
[  131.361201][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  131.361494][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  131.361846][  T228] RDX: 0000000000000000 RSI: ffff88800b96ac98 RDI: ffff88800b8c0b28
[  131.362207][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  131.362567][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  131.362912][  T228] R13: ffff88800b96a128 R14: ffff88800b96a008 R15: ffff88800b96a000
[  131.363271][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  131.363684][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  131.363982][  T228] CR2: 0000557b0799e330 CR3: 000000000a72e002 CR4: 0000000000772ef0
[  131.364345][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  131.364701][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  131.365052][  T228] PKRU: 55555554
[  131.365242][  T228] Call Trace:
[  131.365424][  T228]  <TASK>
[ 131.365546][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 131.365786][ T228] ? __warn (kernel/panic.c:748) 
[ 131.365969][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 131.366218][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 131.366474][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 131.366658][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 131.366897][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 131.367206][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 131.367454][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 131.367751][ 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) 
[ 131.367994][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 131.368242][ T228] register_netdevice (net/core/dev.c:11003) 
[ 131.368489][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 131.368729][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 131.368978][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 131.369288][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 131.369600][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 131.369900][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 131.370171][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 131.370378][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 131.370627][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 131.370830][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 131.371022][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 131.371303][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 131.371546][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 131.371702][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 131.371901][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 131.372122][ 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) 
[ 131.372328][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 131.372554][ T228] ksys_write (fs/read_write.c:731) 
[ 131.372708][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 131.372908][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 131.373133][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 131.373341][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  131.373583][  T228] RIP: 0033:0x7f71ece43b77
[ 131.373794][ 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
[  131.374628][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  131.374996][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  131.375355][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  131.375690][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  131.375986][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  131.376328][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  139.355797][  T228] ------------[ cut here ]------------
| [ 139.356211][ 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) 
| [  139.356640][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  139.357493][  T228] Tainted: [W]=WARN
[  139.357657][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 139.357917][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 139.358205][ 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
[  139.358916][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  139.359199][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  139.359519][  T228] RDX: 0000000000000000 RSI: ffff88800a6eac98 RDI: ffff88800b8c0b28
[  139.359827][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  139.360156][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  139.360463][  T228] R13: ffff88800a6ea128 R14: ffff88800a6ea008 R15: ffff88800a6ea000
[  139.360783][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  139.361151][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  139.361407][  T228] CR2: 00007f71ecd87440 CR3: 000000000a72e006 CR4: 0000000000772ef0
[  139.361756][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  139.362111][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  139.362440][  T228] PKRU: 55555554
[  139.362606][  T228] Call Trace:
[  139.362758][  T228]  <TASK>
[ 139.362861][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 139.363095][ T228] ? __warn (kernel/panic.c:748) 
[ 139.363262][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 139.363470][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 139.363710][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 139.363874][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 139.364096][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 139.364330][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 139.364559][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 139.364819][ 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) 
[ 139.365025][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 139.365252][ T228] register_netdevice (net/core/dev.c:11003) 
[ 139.365478][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 139.365694][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 139.365917][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 139.366187][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 139.366499][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 139.366767][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 139.366984][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 139.367228][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 139.367501][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 139.367718][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 139.367916][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 139.368144][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 139.368352][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 139.368531][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 139.368764][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 139.368980][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 139.369227][ T228] ksys_write (fs/read_write.c:731) 
[ 139.369383][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 139.369621][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 139.369829][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  139.370090][  T228] RIP: 0033:0x7f71ece43b77
[ 139.370306][ 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
[  139.371024][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  139.371362][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  139.371673][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  139.371974][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  139.372327][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000002
[  139.372665][  T228] R13: 00007f71eceff760 R14: 0000000000000002 R15: 00007f71ecefa9c0
| [  142.092956][  T228] ------------[ cut here ]------------
| [ 142.093393][ 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) 
| [  142.093875][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  142.095137][  T228] Tainted: [W]=WARN
[  142.095416][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 142.095822][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.096163][ 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
[  142.096945][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[  142.097270][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  142.097611][  T228] RDX: 0000000000000000 RSI: ffff88800b6cac98 RDI: ffff88800b8c0b78
[  142.097946][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  142.098307][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  142.098645][  T228] R13: ffff88800b6ca128 R14: ffff88800b6ca008 R15: ffff88800b6ca000
[  142.098983][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  142.099402][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  142.099690][  T228] CR2: 00007f5458a5fa00 CR3: 000000000a72e003 CR4: 0000000000772ef0
[  142.100020][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  142.100516][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  142.100903][  T228] PKRU: 55555554
[  142.101088][  T228] Call Trace:
[  142.101271][  T228]  <TASK>
[ 142.101389][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.101612][ T228] ? __warn (kernel/panic.c:748) 
[ 142.101786][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.102018][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 142.102278][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 142.102478][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 142.102698][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 142.102935][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.103204][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 142.103499][ 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) 
[ 142.103732][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 142.103960][ T228] register_netdevice (net/core/dev.c:11003) 
[ 142.104217][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 142.104453][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 142.104701][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 142.104988][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 142.105215][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 142.105564][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 142.105854][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 142.106170][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 142.106411][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 142.106695][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 142.106986][ 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)) 
[ 142.107184][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 142.107417][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 142.107651][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 142.107879][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 142.108116][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 142.108349][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 142.108628][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 142.108848][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 142.109065][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 142.109317][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 142.109536][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 142.109762][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 142.109985][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 142.110291][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 142.110520][ 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) 
[ 142.110747][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 142.110971][ T228] device_add (drivers/base/core.c:3672) 
[ 142.111221][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 142.111445][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 142.111682][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 142.111975][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 142.112290][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 142.112529][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 142.112764][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 142.112985][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 142.113246][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 142.113428][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 142.113705][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 142.113962][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 142.114250][ T228] ksys_write (fs/read_write.c:731) 
[ 142.114430][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 142.114668][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 142.114895][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  142.115187][  T228] RIP: 0033:0x7f71ece43b77
[ 142.115420][ 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
[  142.116208][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  142.116552][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f71ece43b77
[  142.116881][  T228] RDX: 0000000000000004 RSI: 0000557b0799e330 RDI: 0000000000000001
[  142.117229][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  142.117561][  T228] R10: 00007f71eceb63e0 R11: 0000000000000246 R12: 0000000000000004
[  142.117888][  T228] R13: 00007f71eceff760 R14: 0000000000000004 R15: 00007f71ecefa9c0
| [  142.266142][  T228] ------------[ cut here ]------------
| [ 142.266492][ 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) 
| [  142.266937][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  142.267823][  T228] Tainted: [W]=WARN
[  142.267979][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 142.268249][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.268512][ 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
[  142.269280][  T228] RSP: 0018:ffffc90000af7910 EFLAGS: 00010246
[  142.269536][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  142.269851][  T228] RDX: 0000000000000000 RSI: ffff888001fb2c98 RDI: ffff88800b8c0b28
[  142.270411][  T228] RBP: ffffffff8b323440 R08: 0000000000000000 R09: fffffbfff123d83c
[  142.270711][  T228] R10: ffffffff891ec1e7 R11: ffff88800b8c0040 R12: 0000000000000000
[  142.271021][  T228] R13: ffff888001fb2128 R14: ffff888001fb2008 R15: ffff888001fb2000
[  142.271342][  T228] FS:  00007f71ecd02740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  142.271691][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  142.271943][  T228] CR2: 00007f89d74be970 CR3: 000000000a72e001 CR4: 0000000000772ef0
[  142.272254][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  142.272577][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  142.272890][  T228] PKRU: 55555554
[  142.273049][  T228] Call Trace:
[  142.273217][  T228]  <TASK>
[ 142.273322][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.273546][ T228] ? __warn (kernel/panic.c:748) 
[ 142.273702][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.273908][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 142.274134][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 142.274301][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 142.274518][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 142.274758][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 142.274997][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 142.275371][ 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) 
[ 142.275608][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 142.275858][ T228] register_netdevice (net/core/dev.c:11003) 
[ 142.276229][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 142.276453][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 142.276684][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 142.276960][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 142.277350][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 142.277624][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 142.277834][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 142.278061][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 142.278355][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 142.278563][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 142.278798][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 142.279017][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 142.279242][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 142.279412][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 142.279621][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 142.279827][ 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) 
[ 142.280050][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 142.280283][ T228] ksys_write (fs/read_write.c:731) 
[ 142.280442][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 142.280642][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 142.280861][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 142.281087][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  142.281346][  T228] RIP: 0033:0x7f71ece43b77
[ 142.281564][ 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
[  142.282303][  T228] RSP: 002b:00007ffff0a27588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  142.282683][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f71ece43b77
[  142.282992][  T228] RDX: 0000000000000002 RSI: 0000557b0799e330 RDI: 0000000000000001
[  142.283382][  T228] RBP: 0000557b0799e330 R08: 0000000000000000 R09: 00007f71eceb64e0
[  142.283847][  T228] R10: 00007f71eceb63e0 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